Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2006-2008 Intel Corporation |
| 3 | * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> |
| 4 | * Copyright (c) 2008 Red Hat Inc. |
| 5 | * |
| 6 | * DRM core CRTC related functions |
| 7 | * |
| 8 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 9 | * documentation for any purpose is hereby granted without fee, provided that |
| 10 | * the above copyright notice appear in all copies and that both that copyright |
| 11 | * notice and this permission notice appear in supporting documentation, and |
| 12 | * that the name of the copyright holders not be used in advertising or |
| 13 | * publicity pertaining to distribution of the software without specific, |
| 14 | * written prior permission. The copyright holders make no representations |
| 15 | * about the suitability of this software for any purpose. It is provided "as |
| 16 | * is" without express or implied warranty. |
| 17 | * |
| 18 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 19 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 20 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 21 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 22 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 23 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 24 | * OF THIS SOFTWARE. |
| 25 | * |
| 26 | * Authors: |
| 27 | * Keith Packard |
| 28 | * Eric Anholt <eric@anholt.net> |
| 29 | * Dave Airlie <airlied@linux.ie> |
| 30 | * Jesse Barnes <jesse.barnes@intel.com> |
| 31 | */ |
Ville Syrjälä | 6ba6d03 | 2013-06-10 11:15:10 +0300 | [diff] [blame] | 32 | #include <linux/ctype.h> |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 33 | #include <linux/list.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 34 | #include <linux/slab.h> |
Paul Gortmaker | 2d1a8a4 | 2011-08-30 18:16:33 -0400 | [diff] [blame] | 35 | #include <linux/export.h> |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 36 | #include <drm/drmP.h> |
| 37 | #include <drm/drm_crtc.h> |
| 38 | #include <drm/drm_edid.h> |
| 39 | #include <drm/drm_fourcc.h> |
Rob Clark | 51fd371 | 2013-11-19 12:10:12 -0500 | [diff] [blame] | 40 | #include <drm/drm_modeset_lock.h> |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 41 | #include <drm/drm_atomic.h> |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 42 | |
Daniel Vetter | 8bd441b | 2014-01-23 15:35:24 +0100 | [diff] [blame] | 43 | #include "drm_crtc_internal.h" |
Daniel Vetter | 67d0ec4 | 2014-09-10 12:43:53 +0200 | [diff] [blame] | 44 | #include "drm_internal.h" |
Daniel Vetter | 8bd441b | 2014-01-23 15:35:24 +0100 | [diff] [blame] | 45 | |
Chris Wilson | 9a6f513 | 2015-02-25 13:45:26 +0000 | [diff] [blame] | 46 | static struct drm_framebuffer * |
| 47 | internal_framebuffer_create(struct drm_device *dev, |
Ville Syrjälä | 1eb8345 | 2015-11-11 19:11:29 +0200 | [diff] [blame] | 48 | const struct drm_mode_fb_cmd2 *r, |
Chris Wilson | 9a6f513 | 2015-02-25 13:45:26 +0000 | [diff] [blame] | 49 | struct drm_file *file_priv); |
Matt Roper | c394c2b | 2014-06-10 08:28:08 -0700 | [diff] [blame] | 50 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 51 | /* Avoid boilerplate. I'm tired of typing. */ |
| 52 | #define DRM_ENUM_NAME_FN(fnname, list) \ |
Ville Syrjälä | d20d317 | 2013-06-07 15:43:07 +0000 | [diff] [blame] | 53 | const char *fnname(int val) \ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 54 | { \ |
| 55 | int i; \ |
| 56 | for (i = 0; i < ARRAY_SIZE(list); i++) { \ |
| 57 | if (list[i].type == val) \ |
| 58 | return list[i].name; \ |
| 59 | } \ |
| 60 | return "(unknown)"; \ |
| 61 | } |
| 62 | |
| 63 | /* |
| 64 | * Global properties |
| 65 | */ |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 66 | static const struct drm_prop_enum_list drm_dpms_enum_list[] = { |
| 67 | { DRM_MODE_DPMS_ON, "On" }, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 68 | { DRM_MODE_DPMS_STANDBY, "Standby" }, |
| 69 | { DRM_MODE_DPMS_SUSPEND, "Suspend" }, |
| 70 | { DRM_MODE_DPMS_OFF, "Off" } |
| 71 | }; |
| 72 | |
| 73 | DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) |
| 74 | |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 75 | static const struct drm_prop_enum_list drm_plane_type_enum_list[] = { |
Rob Clark | 9922ab5 | 2014-04-01 20:16:57 -0400 | [diff] [blame] | 76 | { DRM_PLANE_TYPE_OVERLAY, "Overlay" }, |
| 77 | { DRM_PLANE_TYPE_PRIMARY, "Primary" }, |
| 78 | { DRM_PLANE_TYPE_CURSOR, "Cursor" }, |
| 79 | }; |
| 80 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 81 | /* |
| 82 | * Optional properties |
| 83 | */ |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 84 | static const struct drm_prop_enum_list drm_scaling_mode_enum_list[] = { |
Jesse Barnes | 53bd838 | 2009-07-01 10:04:40 -0700 | [diff] [blame] | 85 | { DRM_MODE_SCALE_NONE, "None" }, |
| 86 | { DRM_MODE_SCALE_FULLSCREEN, "Full" }, |
| 87 | { DRM_MODE_SCALE_CENTER, "Center" }, |
| 88 | { DRM_MODE_SCALE_ASPECT, "Full aspect" }, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 89 | }; |
| 90 | |
Vandana Kannan | ff587e4 | 2014-06-11 10:46:48 +0530 | [diff] [blame] | 91 | static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = { |
| 92 | { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" }, |
| 93 | { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" }, |
| 94 | { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" }, |
| 95 | }; |
| 96 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 97 | /* |
| 98 | * Non-global properties, but "required" for certain connectors. |
| 99 | */ |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 100 | static const struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 101 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
| 102 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
| 103 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
| 104 | }; |
| 105 | |
| 106 | DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) |
| 107 | |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 108 | static const struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 109 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
| 110 | { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
| 111 | { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
| 112 | }; |
| 113 | |
| 114 | DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, |
| 115 | drm_dvi_i_subconnector_enum_list) |
| 116 | |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 117 | static const struct drm_prop_enum_list drm_tv_select_enum_list[] = { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 118 | { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
| 119 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
| 120 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
| 121 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
Francisco Jerez | aeaa1ad | 2009-08-02 04:19:19 +0200 | [diff] [blame] | 122 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 123 | }; |
| 124 | |
| 125 | DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) |
| 126 | |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 127 | static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 128 | { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
| 129 | { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
| 130 | { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
| 131 | { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
Francisco Jerez | aeaa1ad | 2009-08-02 04:19:19 +0200 | [diff] [blame] | 132 | { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 133 | }; |
| 134 | |
| 135 | DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, |
| 136 | drm_tv_subconnector_enum_list) |
| 137 | |
Ville Syrjälä | d20d317 | 2013-06-07 15:43:07 +0000 | [diff] [blame] | 138 | static const struct drm_prop_enum_list drm_dirty_info_enum_list[] = { |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 139 | { DRM_MODE_DIRTY_OFF, "Off" }, |
| 140 | { DRM_MODE_DIRTY_ON, "On" }, |
| 141 | { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, |
| 142 | }; |
| 143 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 144 | struct drm_conn_prop_enum_list { |
| 145 | int type; |
Ville Syrjälä | d20d317 | 2013-06-07 15:43:07 +0000 | [diff] [blame] | 146 | const char *name; |
Ilia Mirkin | b21e3af | 2013-08-07 22:34:48 -0400 | [diff] [blame] | 147 | struct ida ida; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 148 | }; |
| 149 | |
| 150 | /* |
| 151 | * Connector and encoder types. |
| 152 | */ |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 153 | static struct drm_conn_prop_enum_list drm_connector_enum_list[] = { |
| 154 | { DRM_MODE_CONNECTOR_Unknown, "Unknown" }, |
Ilia Mirkin | b21e3af | 2013-08-07 22:34:48 -0400 | [diff] [blame] | 155 | { DRM_MODE_CONNECTOR_VGA, "VGA" }, |
| 156 | { DRM_MODE_CONNECTOR_DVII, "DVI-I" }, |
| 157 | { DRM_MODE_CONNECTOR_DVID, "DVI-D" }, |
| 158 | { DRM_MODE_CONNECTOR_DVIA, "DVI-A" }, |
| 159 | { DRM_MODE_CONNECTOR_Composite, "Composite" }, |
| 160 | { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO" }, |
| 161 | { DRM_MODE_CONNECTOR_LVDS, "LVDS" }, |
| 162 | { DRM_MODE_CONNECTOR_Component, "Component" }, |
| 163 | { DRM_MODE_CONNECTOR_9PinDIN, "DIN" }, |
| 164 | { DRM_MODE_CONNECTOR_DisplayPort, "DP" }, |
| 165 | { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A" }, |
| 166 | { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B" }, |
| 167 | { DRM_MODE_CONNECTOR_TV, "TV" }, |
| 168 | { DRM_MODE_CONNECTOR_eDP, "eDP" }, |
| 169 | { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual" }, |
Shobhit Kumar | b892327 | 2013-08-27 15:12:13 +0300 | [diff] [blame] | 170 | { DRM_MODE_CONNECTOR_DSI, "DSI" }, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 171 | }; |
| 172 | |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 173 | static const struct drm_prop_enum_list drm_encoder_enum_list[] = { |
| 174 | { DRM_MODE_ENCODER_NONE, "None" }, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 175 | { DRM_MODE_ENCODER_DAC, "DAC" }, |
| 176 | { DRM_MODE_ENCODER_TMDS, "TMDS" }, |
| 177 | { DRM_MODE_ENCODER_LVDS, "LVDS" }, |
| 178 | { DRM_MODE_ENCODER_TVDAC, "TV" }, |
Thomas Hellstrom | a7331e5 | 2011-10-22 10:36:19 +0200 | [diff] [blame] | 179 | { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, |
Shobhit Kumar | b892327 | 2013-08-27 15:12:13 +0300 | [diff] [blame] | 180 | { DRM_MODE_ENCODER_DSI, "DSI" }, |
Dave Airlie | 182407a | 2014-05-02 11:09:54 +1000 | [diff] [blame] | 181 | { DRM_MODE_ENCODER_DPMST, "DP MST" }, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 182 | }; |
| 183 | |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 184 | static const struct drm_prop_enum_list drm_subpixel_enum_list[] = { |
Jesse Barnes | ac1bb36 | 2014-02-10 15:32:44 -0800 | [diff] [blame] | 185 | { SubPixelUnknown, "Unknown" }, |
| 186 | { SubPixelHorizontalRGB, "Horizontal RGB" }, |
| 187 | { SubPixelHorizontalBGR, "Horizontal BGR" }, |
| 188 | { SubPixelVerticalRGB, "Vertical RGB" }, |
| 189 | { SubPixelVerticalBGR, "Vertical BGR" }, |
| 190 | { SubPixelNone, "None" }, |
| 191 | }; |
| 192 | |
Ilia Mirkin | b21e3af | 2013-08-07 22:34:48 -0400 | [diff] [blame] | 193 | void drm_connector_ida_init(void) |
| 194 | { |
| 195 | int i; |
| 196 | |
| 197 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) |
| 198 | ida_init(&drm_connector_enum_list[i].ida); |
| 199 | } |
| 200 | |
| 201 | void drm_connector_ida_destroy(void) |
| 202 | { |
| 203 | int i; |
| 204 | |
| 205 | for (i = 0; i < ARRAY_SIZE(drm_connector_enum_list); i++) |
| 206 | ida_destroy(&drm_connector_enum_list[i].ida); |
| 207 | } |
| 208 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 209 | /** |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 210 | * drm_get_connector_status_name - return a string for connector status |
| 211 | * @status: connector status to compute name of |
| 212 | * |
| 213 | * In contrast to the other drm_get_*_name functions this one here returns a |
| 214 | * const pointer and hence is threadsafe. |
| 215 | */ |
Ville Syrjälä | d20d317 | 2013-06-07 15:43:07 +0000 | [diff] [blame] | 216 | const char *drm_get_connector_status_name(enum drm_connector_status status) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 217 | { |
| 218 | if (status == connector_status_connected) |
| 219 | return "connected"; |
| 220 | else if (status == connector_status_disconnected) |
| 221 | return "disconnected"; |
| 222 | else |
| 223 | return "unknown"; |
| 224 | } |
Lespiau, Damien | ed7951d | 2013-05-10 12:36:42 +0000 | [diff] [blame] | 225 | EXPORT_SYMBOL(drm_get_connector_status_name); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 226 | |
Jesse Barnes | ac1bb36 | 2014-02-10 15:32:44 -0800 | [diff] [blame] | 227 | /** |
| 228 | * drm_get_subpixel_order_name - return a string for a given subpixel enum |
| 229 | * @order: enum of subpixel_order |
| 230 | * |
| 231 | * Note you could abuse this and return something out of bounds, but that |
| 232 | * would be a caller error. No unscrubbed user data should make it here. |
| 233 | */ |
| 234 | const char *drm_get_subpixel_order_name(enum subpixel_order order) |
| 235 | { |
| 236 | return drm_subpixel_enum_list[order].name; |
| 237 | } |
| 238 | EXPORT_SYMBOL(drm_get_subpixel_order_name); |
| 239 | |
Ville Syrjälä | 6ba6d03 | 2013-06-10 11:15:10 +0300 | [diff] [blame] | 240 | static char printable_char(int c) |
| 241 | { |
| 242 | return isascii(c) && isprint(c) ? c : '?'; |
| 243 | } |
| 244 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 245 | /** |
| 246 | * drm_get_format_name - return a string for drm fourcc format |
| 247 | * @format: format to compute name of |
| 248 | * |
| 249 | * Note that the buffer used by this function is globally shared and owned by |
| 250 | * the function itself. |
| 251 | * |
| 252 | * FIXME: This isn't really multithreading safe. |
| 253 | */ |
Ville Syrjälä | d20d317 | 2013-06-07 15:43:07 +0000 | [diff] [blame] | 254 | const char *drm_get_format_name(uint32_t format) |
Ville Syrjälä | 6ba6d03 | 2013-06-10 11:15:10 +0300 | [diff] [blame] | 255 | { |
| 256 | static char buf[32]; |
| 257 | |
| 258 | snprintf(buf, sizeof(buf), |
| 259 | "%c%c%c%c %s-endian (0x%08x)", |
| 260 | printable_char(format & 0xff), |
| 261 | printable_char((format >> 8) & 0xff), |
| 262 | printable_char((format >> 16) & 0xff), |
| 263 | printable_char((format >> 24) & 0x7f), |
| 264 | format & DRM_FORMAT_BIG_ENDIAN ? "big" : "little", |
| 265 | format); |
| 266 | |
| 267 | return buf; |
| 268 | } |
| 269 | EXPORT_SYMBOL(drm_get_format_name); |
| 270 | |
Dave Airlie | 2ee3945 | 2014-07-24 11:53:45 +1000 | [diff] [blame] | 271 | /* |
| 272 | * Internal function to assign a slot in the object idr and optionally |
| 273 | * register the object into the idr. |
| 274 | */ |
| 275 | static int drm_mode_object_get_reg(struct drm_device *dev, |
| 276 | struct drm_mode_object *obj, |
| 277 | uint32_t obj_type, |
| 278 | bool register_obj) |
| 279 | { |
| 280 | int ret; |
| 281 | |
| 282 | mutex_lock(&dev->mode_config.idr_mutex); |
| 283 | ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL); |
| 284 | if (ret >= 0) { |
| 285 | /* |
| 286 | * Set up the object linking under the protection of the idr |
| 287 | * lock so that other users can't see inconsistent state. |
| 288 | */ |
| 289 | obj->id = ret; |
| 290 | obj->type = obj_type; |
| 291 | } |
| 292 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 293 | |
| 294 | return ret < 0 ? ret : 0; |
| 295 | } |
| 296 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 297 | /** |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 298 | * drm_mode_object_get - allocate a new modeset identifier |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 299 | * @dev: DRM device |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 300 | * @obj: object pointer, used to generate unique ID |
| 301 | * @obj_type: object type |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 302 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 303 | * Create a unique identifier based on @ptr in @dev's identifier space. Used |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 304 | * for tracking modes, CRTCs and connectors. Note that despite the _get postfix |
| 305 | * modeset identifiers are _not_ reference counted. Hence don't use this for |
| 306 | * reference counted modeset objects like framebuffers. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 307 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 308 | * Returns: |
Lukas Wunner | 3c67d83 | 2015-10-15 11:56:56 +0200 | [diff] [blame] | 309 | * Zero on success, error code on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 310 | */ |
Daniel Vetter | 8bd441b | 2014-01-23 15:35:24 +0100 | [diff] [blame] | 311 | int drm_mode_object_get(struct drm_device *dev, |
| 312 | struct drm_mode_object *obj, uint32_t obj_type) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 313 | { |
Dave Airlie | 2ee3945 | 2014-07-24 11:53:45 +1000 | [diff] [blame] | 314 | return drm_mode_object_get_reg(dev, obj, obj_type, true); |
| 315 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 316 | |
Dave Airlie | 2ee3945 | 2014-07-24 11:53:45 +1000 | [diff] [blame] | 317 | static void drm_mode_object_register(struct drm_device *dev, |
| 318 | struct drm_mode_object *obj) |
| 319 | { |
Jesse Barnes | ad2563c | 2009-01-19 17:21:45 +1000 | [diff] [blame] | 320 | mutex_lock(&dev->mode_config.idr_mutex); |
Dave Airlie | 2ee3945 | 2014-07-24 11:53:45 +1000 | [diff] [blame] | 321 | idr_replace(&dev->mode_config.crtc_idr, obj, obj->id); |
Jesse Barnes | ad2563c | 2009-01-19 17:21:45 +1000 | [diff] [blame] | 322 | mutex_unlock(&dev->mode_config.idr_mutex); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | /** |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 326 | * drm_mode_object_put - free a modeset identifer |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 327 | * @dev: DRM device |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 328 | * @object: object to free |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 329 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 330 | * Free @id from @dev's unique identifier pool. Note that despite the _get |
| 331 | * postfix modeset identifiers are _not_ reference counted. Hence don't use this |
| 332 | * for reference counted modeset objects like framebuffers. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 333 | */ |
Daniel Vetter | 8bd441b | 2014-01-23 15:35:24 +0100 | [diff] [blame] | 334 | void drm_mode_object_put(struct drm_device *dev, |
| 335 | struct drm_mode_object *object) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 336 | { |
Jesse Barnes | ad2563c | 2009-01-19 17:21:45 +1000 | [diff] [blame] | 337 | mutex_lock(&dev->mode_config.idr_mutex); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 338 | idr_remove(&dev->mode_config.crtc_idr, object->id); |
Jesse Barnes | ad2563c | 2009-01-19 17:21:45 +1000 | [diff] [blame] | 339 | mutex_unlock(&dev->mode_config.idr_mutex); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 340 | } |
| 341 | |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 342 | static struct drm_mode_object *_object_find(struct drm_device *dev, |
| 343 | uint32_t id, uint32_t type) |
| 344 | { |
| 345 | struct drm_mode_object *obj = NULL; |
| 346 | |
| 347 | mutex_lock(&dev->mode_config.idr_mutex); |
| 348 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
Daniel Vetter | 168c02e | 2014-07-24 12:12:45 +0200 | [diff] [blame] | 349 | if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type) |
| 350 | obj = NULL; |
| 351 | if (obj && obj->id != id) |
| 352 | obj = NULL; |
| 353 | /* don't leak out unref'd fb's */ |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 354 | if (obj && |
| 355 | (obj->type == DRM_MODE_OBJECT_FB || |
| 356 | obj->type == DRM_MODE_OBJECT_BLOB)) |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 357 | obj = NULL; |
| 358 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 359 | |
| 360 | return obj; |
| 361 | } |
| 362 | |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 363 | /** |
| 364 | * drm_mode_object_find - look up a drm object with static lifetime |
| 365 | * @dev: drm device |
| 366 | * @id: id of the mode object |
| 367 | * @type: type of the mode object |
| 368 | * |
| 369 | * Note that framebuffers cannot be looked up with this functions - since those |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 370 | * are reference counted, they need special treatment. Even with |
| 371 | * DRM_MODE_OBJECT_ANY (although that will simply return NULL |
| 372 | * rather than WARN_ON()). |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 373 | */ |
Daniel Vetter | 7a9c906 | 2009-09-15 22:57:31 +0200 | [diff] [blame] | 374 | struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, |
| 375 | uint32_t id, uint32_t type) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 376 | { |
Jesse Barnes | ad2563c | 2009-01-19 17:21:45 +1000 | [diff] [blame] | 377 | struct drm_mode_object *obj = NULL; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 378 | |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 379 | /* Framebuffers are reference counted and need their own lookup |
| 380 | * function.*/ |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 381 | WARN_ON(type == DRM_MODE_OBJECT_FB || type == DRM_MODE_OBJECT_BLOB); |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 382 | obj = _object_find(dev, id, type); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 383 | return obj; |
| 384 | } |
| 385 | EXPORT_SYMBOL(drm_mode_object_find); |
| 386 | |
| 387 | /** |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 388 | * drm_framebuffer_init - initialize a framebuffer |
| 389 | * @dev: DRM device |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 390 | * @fb: framebuffer to be initialized |
| 391 | * @funcs: ... with these functions |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 392 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 393 | * Allocates an ID for the framebuffer's parent mode object, sets its mode |
| 394 | * functions & device file and adds it to the master fd list. |
| 395 | * |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 396 | * IMPORTANT: |
| 397 | * This functions publishes the fb and makes it available for concurrent access |
| 398 | * by other users. Which means by this point the fb _must_ be fully set up - |
| 399 | * since all the fb attributes are invariant over its lifetime, no further |
| 400 | * locking but only correct reference counting is required. |
| 401 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 402 | * Returns: |
André Goddard Rosa | af901ca | 2009-11-14 13:09:05 -0200 | [diff] [blame] | 403 | * Zero on success, error code on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 404 | */ |
| 405 | int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, |
| 406 | const struct drm_framebuffer_funcs *funcs) |
| 407 | { |
| 408 | int ret; |
| 409 | |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 410 | mutex_lock(&dev->mode_config.fb_lock); |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 411 | kref_init(&fb->refcount); |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 412 | INIT_LIST_HEAD(&fb->filp_head); |
| 413 | fb->dev = dev; |
| 414 | fb->funcs = funcs; |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 415 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 416 | ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 417 | if (ret) |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 418 | goto out; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 419 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 420 | dev->mode_config.num_fb++; |
| 421 | list_add(&fb->head, &dev->mode_config.fb_list); |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 422 | out: |
| 423 | mutex_unlock(&dev->mode_config.fb_lock); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 424 | |
Lukas Wunner | 3c67d83 | 2015-10-15 11:56:56 +0200 | [diff] [blame] | 425 | return ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 426 | } |
| 427 | EXPORT_SYMBOL(drm_framebuffer_init); |
| 428 | |
Daniel Vetter | 83f45fc | 2014-08-06 09:10:18 +0200 | [diff] [blame] | 429 | /* dev->mode_config.fb_lock must be held! */ |
| 430 | static void __drm_framebuffer_unregister(struct drm_device *dev, |
| 431 | struct drm_framebuffer *fb) |
| 432 | { |
| 433 | mutex_lock(&dev->mode_config.idr_mutex); |
| 434 | idr_remove(&dev->mode_config.crtc_idr, fb->base.id); |
| 435 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 436 | |
| 437 | fb->base.id = 0; |
| 438 | } |
| 439 | |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 440 | static void drm_framebuffer_free(struct kref *kref) |
| 441 | { |
| 442 | struct drm_framebuffer *fb = |
| 443 | container_of(kref, struct drm_framebuffer, refcount); |
Daniel Vetter | 83f45fc | 2014-08-06 09:10:18 +0200 | [diff] [blame] | 444 | struct drm_device *dev = fb->dev; |
| 445 | |
| 446 | /* |
| 447 | * The lookup idr holds a weak reference, which has not necessarily been |
| 448 | * removed at this point. Check for that. |
| 449 | */ |
| 450 | mutex_lock(&dev->mode_config.fb_lock); |
| 451 | if (fb->base.id) { |
| 452 | /* Mark fb as reaped and drop idr ref. */ |
| 453 | __drm_framebuffer_unregister(dev, fb); |
| 454 | } |
| 455 | mutex_unlock(&dev->mode_config.fb_lock); |
| 456 | |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 457 | fb->funcs->destroy(fb); |
| 458 | } |
| 459 | |
Daniel Vetter | 2b677e8 | 2012-12-10 21:16:05 +0100 | [diff] [blame] | 460 | static struct drm_framebuffer *__drm_framebuffer_lookup(struct drm_device *dev, |
| 461 | uint32_t id) |
| 462 | { |
| 463 | struct drm_mode_object *obj = NULL; |
| 464 | struct drm_framebuffer *fb; |
| 465 | |
| 466 | mutex_lock(&dev->mode_config.idr_mutex); |
| 467 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
| 468 | if (!obj || (obj->type != DRM_MODE_OBJECT_FB) || (obj->id != id)) |
| 469 | fb = NULL; |
| 470 | else |
| 471 | fb = obj_to_fb(obj); |
| 472 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 473 | |
| 474 | return fb; |
| 475 | } |
| 476 | |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 477 | /** |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 478 | * drm_framebuffer_lookup - look up a drm framebuffer and grab a reference |
| 479 | * @dev: drm device |
| 480 | * @id: id of the fb object |
| 481 | * |
| 482 | * If successful, this grabs an additional reference to the framebuffer - |
| 483 | * callers need to make sure to eventually unreference the returned framebuffer |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 484 | * again, using @drm_framebuffer_unreference. |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 485 | */ |
| 486 | struct drm_framebuffer *drm_framebuffer_lookup(struct drm_device *dev, |
| 487 | uint32_t id) |
| 488 | { |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 489 | struct drm_framebuffer *fb; |
| 490 | |
| 491 | mutex_lock(&dev->mode_config.fb_lock); |
Daniel Vetter | 2b677e8 | 2012-12-10 21:16:05 +0100 | [diff] [blame] | 492 | fb = __drm_framebuffer_lookup(dev, id); |
Daniel Vetter | 83f45fc | 2014-08-06 09:10:18 +0200 | [diff] [blame] | 493 | if (fb) { |
| 494 | if (!kref_get_unless_zero(&fb->refcount)) |
| 495 | fb = NULL; |
| 496 | } |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 497 | mutex_unlock(&dev->mode_config.fb_lock); |
| 498 | |
| 499 | return fb; |
| 500 | } |
| 501 | EXPORT_SYMBOL(drm_framebuffer_lookup); |
| 502 | |
| 503 | /** |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 504 | * drm_framebuffer_unreference - unref a framebuffer |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 505 | * @fb: framebuffer to unref |
| 506 | * |
| 507 | * This functions decrements the fb's refcount and frees it if it drops to zero. |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 508 | */ |
| 509 | void drm_framebuffer_unreference(struct drm_framebuffer *fb) |
| 510 | { |
Rob Clark | 8291272 | 2014-03-18 10:07:08 -0400 | [diff] [blame] | 511 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 512 | kref_put(&fb->refcount, drm_framebuffer_free); |
| 513 | } |
| 514 | EXPORT_SYMBOL(drm_framebuffer_unreference); |
| 515 | |
| 516 | /** |
| 517 | * drm_framebuffer_reference - incr the fb refcnt |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 518 | * @fb: framebuffer |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 519 | * |
| 520 | * This functions increments the fb's refcount. |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 521 | */ |
| 522 | void drm_framebuffer_reference(struct drm_framebuffer *fb) |
| 523 | { |
Rob Clark | 8291272 | 2014-03-18 10:07:08 -0400 | [diff] [blame] | 524 | DRM_DEBUG("%p: FB ID: %d (%d)\n", fb, fb->base.id, atomic_read(&fb->refcount.refcount)); |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 525 | kref_get(&fb->refcount); |
| 526 | } |
| 527 | EXPORT_SYMBOL(drm_framebuffer_reference); |
| 528 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 529 | /** |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 530 | * drm_framebuffer_unregister_private - unregister a private fb from the lookup idr |
| 531 | * @fb: fb to unregister |
| 532 | * |
| 533 | * Drivers need to call this when cleaning up driver-private framebuffers, e.g. |
| 534 | * those used for fbdev. Note that the caller must hold a reference of it's own, |
| 535 | * i.e. the object may not be destroyed through this call (since it'll lead to a |
| 536 | * locking inversion). |
| 537 | */ |
| 538 | void drm_framebuffer_unregister_private(struct drm_framebuffer *fb) |
| 539 | { |
Daniel Vetter | a39a357 | 2015-08-25 15:45:11 +0200 | [diff] [blame] | 540 | struct drm_device *dev; |
| 541 | |
| 542 | if (!fb) |
| 543 | return; |
| 544 | |
| 545 | dev = fb->dev; |
Daniel Vetter | 2b677e8 | 2012-12-10 21:16:05 +0100 | [diff] [blame] | 546 | |
| 547 | mutex_lock(&dev->mode_config.fb_lock); |
| 548 | /* Mark fb as reaped and drop idr ref. */ |
| 549 | __drm_framebuffer_unregister(dev, fb); |
| 550 | mutex_unlock(&dev->mode_config.fb_lock); |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 551 | } |
| 552 | EXPORT_SYMBOL(drm_framebuffer_unregister_private); |
| 553 | |
| 554 | /** |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 555 | * drm_framebuffer_cleanup - remove a framebuffer object |
| 556 | * @fb: framebuffer to remove |
| 557 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 558 | * Cleanup framebuffer. This function is intended to be used from the drivers |
| 559 | * ->destroy callback. It can also be used to clean up driver private |
| 560 | * framebuffers embedded into a larger structure. |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 561 | * |
| 562 | * Note that this function does not remove the fb from active usuage - if it is |
| 563 | * still used anywhere, hilarity can ensue since userspace could call getfb on |
| 564 | * the id and get back -EINVAL. Obviously no concern at driver unload time. |
| 565 | * |
| 566 | * Also, the framebuffer will not be removed from the lookup idr - for |
| 567 | * user-created framebuffers this will happen in in the rmfb ioctl. For |
| 568 | * driver-private objects (e.g. for fbdev) drivers need to explicitly call |
| 569 | * drm_framebuffer_unregister_private. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 570 | */ |
| 571 | void drm_framebuffer_cleanup(struct drm_framebuffer *fb) |
| 572 | { |
| 573 | struct drm_device *dev = fb->dev; |
Daniel Vetter | 8faf6b1 | 2012-12-01 23:43:11 +0100 | [diff] [blame] | 574 | |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 575 | mutex_lock(&dev->mode_config.fb_lock); |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 576 | list_del(&fb->head); |
| 577 | dev->mode_config.num_fb--; |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 578 | mutex_unlock(&dev->mode_config.fb_lock); |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 579 | } |
| 580 | EXPORT_SYMBOL(drm_framebuffer_cleanup); |
| 581 | |
| 582 | /** |
| 583 | * drm_framebuffer_remove - remove and unreference a framebuffer object |
| 584 | * @fb: framebuffer to remove |
| 585 | * |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 586 | * Scans all the CRTCs and planes in @dev's mode_config. If they're |
Daniel Vetter | 3620636 | 2012-12-10 20:42:17 +0100 | [diff] [blame] | 587 | * using @fb, removes it, setting it to NULL. Then drops the reference to the |
Daniel Vetter | b62584e | 2012-12-11 16:51:35 +0100 | [diff] [blame] | 588 | * passed-in framebuffer. Might take the modeset locks. |
| 589 | * |
| 590 | * Note that this function optimizes the cleanup away if the caller holds the |
| 591 | * last reference to the framebuffer. It is also guaranteed to not take the |
| 592 | * modeset locks in this case. |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 593 | */ |
| 594 | void drm_framebuffer_remove(struct drm_framebuffer *fb) |
| 595 | { |
Daniel Vetter | a39a357 | 2015-08-25 15:45:11 +0200 | [diff] [blame] | 596 | struct drm_device *dev; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 597 | struct drm_crtc *crtc; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 598 | struct drm_plane *plane; |
Dave Airlie | 5ef5f72 | 2009-08-17 13:11:23 +1000 | [diff] [blame] | 599 | struct drm_mode_set set; |
| 600 | int ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 601 | |
Daniel Vetter | a39a357 | 2015-08-25 15:45:11 +0200 | [diff] [blame] | 602 | if (!fb) |
| 603 | return; |
| 604 | |
| 605 | dev = fb->dev; |
| 606 | |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 607 | WARN_ON(!list_empty(&fb->filp_head)); |
Daniel Vetter | 8faf6b1 | 2012-12-01 23:43:11 +0100 | [diff] [blame] | 608 | |
Daniel Vetter | b62584e | 2012-12-11 16:51:35 +0100 | [diff] [blame] | 609 | /* |
| 610 | * drm ABI mandates that we remove any deleted framebuffers from active |
| 611 | * useage. But since most sane clients only remove framebuffers they no |
| 612 | * longer need, try to optimize this away. |
| 613 | * |
| 614 | * Since we're holding a reference ourselves, observing a refcount of 1 |
| 615 | * means that we're the last holder and can skip it. Also, the refcount |
| 616 | * can never increase from 1 again, so we don't need any barriers or |
| 617 | * locks. |
| 618 | * |
| 619 | * Note that userspace could try to race with use and instate a new |
| 620 | * usage _after_ we've cleared all current ones. End result will be an |
| 621 | * in-use fb with fb-id == 0. Userspace is allowed to shoot its own foot |
| 622 | * in this manner. |
| 623 | */ |
| 624 | if (atomic_read(&fb->refcount.refcount) > 1) { |
| 625 | drm_modeset_lock_all(dev); |
| 626 | /* remove from any CRTC */ |
Daniel Vetter | 6295d60 | 2015-07-09 23:44:25 +0200 | [diff] [blame] | 627 | drm_for_each_crtc(crtc, dev) { |
Matt Roper | f4510a2 | 2014-04-01 15:22:40 -0700 | [diff] [blame] | 628 | if (crtc->primary->fb == fb) { |
Daniel Vetter | b62584e | 2012-12-11 16:51:35 +0100 | [diff] [blame] | 629 | /* should turn off the crtc */ |
| 630 | memset(&set, 0, sizeof(struct drm_mode_set)); |
| 631 | set.crtc = crtc; |
| 632 | set.fb = NULL; |
| 633 | ret = drm_mode_set_config_internal(&set); |
| 634 | if (ret) |
| 635 | DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); |
| 636 | } |
Dave Airlie | 5ef5f72 | 2009-08-17 13:11:23 +1000 | [diff] [blame] | 637 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 638 | |
Daniel Vetter | 6295d60 | 2015-07-09 23:44:25 +0200 | [diff] [blame] | 639 | drm_for_each_plane(plane, dev) { |
Ville Syrjälä | 9125e61 | 2013-06-03 16:10:40 +0300 | [diff] [blame] | 640 | if (plane->fb == fb) |
| 641 | drm_plane_force_disable(plane); |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 642 | } |
Daniel Vetter | b62584e | 2012-12-11 16:51:35 +0100 | [diff] [blame] | 643 | drm_modeset_unlock_all(dev); |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 644 | } |
| 645 | |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 646 | drm_framebuffer_unreference(fb); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 647 | } |
Rob Clark | f7eff60 | 2012-09-05 21:48:38 +0000 | [diff] [blame] | 648 | EXPORT_SYMBOL(drm_framebuffer_remove); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 649 | |
Rob Clark | 51fd371 | 2013-11-19 12:10:12 -0500 | [diff] [blame] | 650 | DEFINE_WW_CLASS(crtc_ww_class); |
| 651 | |
Ville Syrjälä | fa3ab4c | 2015-12-08 18:41:53 +0200 | [diff] [blame] | 652 | static unsigned int drm_num_crtcs(struct drm_device *dev) |
| 653 | { |
| 654 | unsigned int num = 0; |
| 655 | struct drm_crtc *tmp; |
| 656 | |
| 657 | drm_for_each_crtc(tmp, dev) { |
| 658 | num++; |
| 659 | } |
| 660 | |
| 661 | return num; |
| 662 | } |
| 663 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 664 | /** |
Matt Roper | e13161a | 2014-04-01 15:22:38 -0700 | [diff] [blame] | 665 | * drm_crtc_init_with_planes - Initialise a new CRTC object with |
| 666 | * specified primary and cursor planes. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 667 | * @dev: DRM device |
| 668 | * @crtc: CRTC object to init |
Matt Roper | e13161a | 2014-04-01 15:22:38 -0700 | [diff] [blame] | 669 | * @primary: Primary plane for CRTC |
| 670 | * @cursor: Cursor plane for CRTC |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 671 | * @funcs: callbacks for the new CRTC |
Ville Syrjälä | f988287 | 2015-12-09 16:19:31 +0200 | [diff] [blame] | 672 | * @name: printf style format string for the CRTC name, or NULL for default name |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 673 | * |
Ville Syrjälä | ad6f5c3 | 2013-06-05 12:39:55 +0000 | [diff] [blame] | 674 | * Inits a new object created as base part of a driver crtc object. |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 675 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 676 | * Returns: |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 677 | * Zero on success, error code on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 678 | */ |
Matt Roper | e13161a | 2014-04-01 15:22:38 -0700 | [diff] [blame] | 679 | int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, |
| 680 | struct drm_plane *primary, |
Matt Roper | fc1d3e4 | 2014-06-10 08:28:11 -0700 | [diff] [blame] | 681 | struct drm_plane *cursor, |
Ville Syrjälä | f988287 | 2015-12-09 16:19:31 +0200 | [diff] [blame] | 682 | const struct drm_crtc_funcs *funcs, |
| 683 | const char *name, ...) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 684 | { |
Rob Clark | 51fd371 | 2013-11-19 12:10:12 -0500 | [diff] [blame] | 685 | struct drm_mode_config *config = &dev->mode_config; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 686 | int ret; |
| 687 | |
Benjamin Gaignard | 522cf91 | 2015-03-17 12:05:29 +0100 | [diff] [blame] | 688 | WARN_ON(primary && primary->type != DRM_PLANE_TYPE_PRIMARY); |
| 689 | WARN_ON(cursor && cursor->type != DRM_PLANE_TYPE_CURSOR); |
| 690 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 691 | crtc->dev = dev; |
| 692 | crtc->funcs = funcs; |
| 693 | |
Rob Clark | 51fd371 | 2013-11-19 12:10:12 -0500 | [diff] [blame] | 694 | drm_modeset_lock_init(&crtc->mutex); |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 695 | ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
| 696 | if (ret) |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 697 | return ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 698 | |
Ville Syrjälä | fa3ab4c | 2015-12-08 18:41:53 +0200 | [diff] [blame] | 699 | if (name) { |
| 700 | va_list ap; |
| 701 | |
| 702 | va_start(ap, name); |
| 703 | crtc->name = kvasprintf(GFP_KERNEL, name, ap); |
| 704 | va_end(ap); |
| 705 | } else { |
| 706 | crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", |
| 707 | drm_num_crtcs(dev)); |
| 708 | } |
| 709 | if (!crtc->name) { |
| 710 | drm_mode_object_put(dev, &crtc->base); |
| 711 | return -ENOMEM; |
| 712 | } |
| 713 | |
Paulo Zanoni | bffd9de0 | 2012-05-15 18:09:05 -0300 | [diff] [blame] | 714 | crtc->base.properties = &crtc->properties; |
| 715 | |
Rob Clark | 51fd371 | 2013-11-19 12:10:12 -0500 | [diff] [blame] | 716 | list_add_tail(&crtc->head, &config->crtc_list); |
| 717 | config->num_crtc++; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 718 | |
Matt Roper | e13161a | 2014-04-01 15:22:38 -0700 | [diff] [blame] | 719 | crtc->primary = primary; |
Matt Roper | fc1d3e4 | 2014-06-10 08:28:11 -0700 | [diff] [blame] | 720 | crtc->cursor = cursor; |
Matt Roper | e13161a | 2014-04-01 15:22:38 -0700 | [diff] [blame] | 721 | if (primary) |
| 722 | primary->possible_crtcs = 1 << drm_crtc_index(crtc); |
Matt Roper | fc1d3e4 | 2014-06-10 08:28:11 -0700 | [diff] [blame] | 723 | if (cursor) |
| 724 | cursor->possible_crtcs = 1 << drm_crtc_index(crtc); |
Matt Roper | e13161a | 2014-04-01 15:22:38 -0700 | [diff] [blame] | 725 | |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 726 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
| 727 | drm_object_attach_property(&crtc->base, config->prop_active, 0); |
Daniel Stone | 955f3c3 | 2015-05-25 19:11:52 +0100 | [diff] [blame] | 728 | drm_object_attach_property(&crtc->base, config->prop_mode_id, 0); |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 729 | } |
| 730 | |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 731 | return 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 732 | } |
Matt Roper | e13161a | 2014-04-01 15:22:38 -0700 | [diff] [blame] | 733 | EXPORT_SYMBOL(drm_crtc_init_with_planes); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 734 | |
| 735 | /** |
Ville Syrjälä | ad6f5c3 | 2013-06-05 12:39:55 +0000 | [diff] [blame] | 736 | * drm_crtc_cleanup - Clean up the core crtc usage |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 737 | * @crtc: CRTC to cleanup |
| 738 | * |
Ville Syrjälä | ad6f5c3 | 2013-06-05 12:39:55 +0000 | [diff] [blame] | 739 | * This function cleans up @crtc and removes it from the DRM mode setting |
| 740 | * core. Note that the function does *not* free the crtc structure itself, |
| 741 | * this is the responsibility of the caller. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 742 | */ |
| 743 | void drm_crtc_cleanup(struct drm_crtc *crtc) |
| 744 | { |
| 745 | struct drm_device *dev = crtc->dev; |
| 746 | |
Sachin Kamat | 9e1c156 | 2012-11-19 09:44:56 +0000 | [diff] [blame] | 747 | kfree(crtc->gamma_store); |
| 748 | crtc->gamma_store = NULL; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 749 | |
Rob Clark | 51fd371 | 2013-11-19 12:10:12 -0500 | [diff] [blame] | 750 | drm_modeset_lock_fini(&crtc->mutex); |
| 751 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 752 | drm_mode_object_put(dev, &crtc->base); |
| 753 | list_del(&crtc->head); |
| 754 | dev->mode_config.num_crtc--; |
Thierry Reding | 3009c03 | 2014-11-25 12:09:49 +0100 | [diff] [blame] | 755 | |
| 756 | WARN_ON(crtc->state && !crtc->funcs->atomic_destroy_state); |
| 757 | if (crtc->state && crtc->funcs->atomic_destroy_state) |
| 758 | crtc->funcs->atomic_destroy_state(crtc, crtc->state); |
Thierry Reding | a18c0af | 2014-12-10 11:38:49 +0100 | [diff] [blame] | 759 | |
Ville Syrjälä | fa3ab4c | 2015-12-08 18:41:53 +0200 | [diff] [blame] | 760 | kfree(crtc->name); |
| 761 | |
Thierry Reding | a18c0af | 2014-12-10 11:38:49 +0100 | [diff] [blame] | 762 | memset(crtc, 0, sizeof(*crtc)); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 763 | } |
| 764 | EXPORT_SYMBOL(drm_crtc_cleanup); |
| 765 | |
| 766 | /** |
Russell King | db5f7a6 | 2014-01-02 21:27:33 +0000 | [diff] [blame] | 767 | * drm_crtc_index - find the index of a registered CRTC |
| 768 | * @crtc: CRTC to find index for |
| 769 | * |
| 770 | * Given a registered CRTC, return the index of that CRTC within a DRM |
| 771 | * device's list of CRTCs. |
| 772 | */ |
| 773 | unsigned int drm_crtc_index(struct drm_crtc *crtc) |
| 774 | { |
| 775 | unsigned int index = 0; |
| 776 | struct drm_crtc *tmp; |
| 777 | |
Daniel Vetter | e4f6254 | 2015-07-09 23:44:35 +0200 | [diff] [blame] | 778 | drm_for_each_crtc(tmp, crtc->dev) { |
Russell King | db5f7a6 | 2014-01-02 21:27:33 +0000 | [diff] [blame] | 779 | if (tmp == crtc) |
| 780 | return index; |
| 781 | |
| 782 | index++; |
| 783 | } |
| 784 | |
| 785 | BUG(); |
| 786 | } |
| 787 | EXPORT_SYMBOL(drm_crtc_index); |
| 788 | |
Lespiau, Damien | 86f422d | 2013-08-20 00:53:06 +0100 | [diff] [blame] | 789 | /* |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 790 | * drm_mode_remove - remove and free a mode |
| 791 | * @connector: connector list to modify |
| 792 | * @mode: mode to remove |
| 793 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 794 | * Remove @mode from @connector's mode list, then free it. |
| 795 | */ |
Lespiau, Damien | 86f422d | 2013-08-20 00:53:06 +0100 | [diff] [blame] | 796 | static void drm_mode_remove(struct drm_connector *connector, |
| 797 | struct drm_display_mode *mode) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 798 | { |
| 799 | list_del(&mode->head); |
Sascha Hauer | 554f1d7 | 2012-02-01 11:38:19 +0100 | [diff] [blame] | 800 | drm_mode_destroy(connector->dev, mode); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 801 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 802 | |
| 803 | /** |
Boris Brezillon | b5571e9 | 2014-07-22 12:09:10 +0200 | [diff] [blame] | 804 | * drm_display_info_set_bus_formats - set the supported bus formats |
| 805 | * @info: display info to store bus formats in |
Boris Brezillon | e37bfa1 | 2015-01-23 21:09:30 +0100 | [diff] [blame] | 806 | * @formats: array containing the supported bus formats |
| 807 | * @num_formats: the number of entries in the fmts array |
Boris Brezillon | b5571e9 | 2014-07-22 12:09:10 +0200 | [diff] [blame] | 808 | * |
| 809 | * Store the supported bus formats in display info structure. |
| 810 | * See MEDIA_BUS_FMT_* definitions in include/uapi/linux/media-bus-format.h for |
| 811 | * a full list of available formats. |
| 812 | */ |
| 813 | int drm_display_info_set_bus_formats(struct drm_display_info *info, |
| 814 | const u32 *formats, |
| 815 | unsigned int num_formats) |
| 816 | { |
| 817 | u32 *fmts = NULL; |
| 818 | |
| 819 | if (!formats && num_formats) |
| 820 | return -EINVAL; |
| 821 | |
| 822 | if (formats && num_formats) { |
| 823 | fmts = kmemdup(formats, sizeof(*formats) * num_formats, |
| 824 | GFP_KERNEL); |
Dan Carpenter | 944579c | 2015-01-28 09:43:35 +0300 | [diff] [blame] | 825 | if (!fmts) |
Boris Brezillon | b5571e9 | 2014-07-22 12:09:10 +0200 | [diff] [blame] | 826 | return -ENOMEM; |
| 827 | } |
| 828 | |
| 829 | kfree(info->bus_formats); |
| 830 | info->bus_formats = fmts; |
| 831 | info->num_bus_formats = num_formats; |
| 832 | |
| 833 | return 0; |
| 834 | } |
| 835 | EXPORT_SYMBOL(drm_display_info_set_bus_formats); |
| 836 | |
| 837 | /** |
Chris Wilson | eaf99c7 | 2014-08-06 10:08:32 +0200 | [diff] [blame] | 838 | * drm_connector_get_cmdline_mode - reads the user's cmdline mode |
| 839 | * @connector: connector to quwery |
Chris Wilson | eaf99c7 | 2014-08-06 10:08:32 +0200 | [diff] [blame] | 840 | * |
| 841 | * The kernel supports per-connector configration of its consoles through |
| 842 | * use of the video= parameter. This function parses that option and |
| 843 | * extracts the user's specified mode (or enable/disable status) for a |
| 844 | * particular connector. This is typically only used during the early fbdev |
| 845 | * setup. |
| 846 | */ |
| 847 | static void drm_connector_get_cmdline_mode(struct drm_connector *connector) |
| 848 | { |
| 849 | struct drm_cmdline_mode *mode = &connector->cmdline_mode; |
| 850 | char *option = NULL; |
| 851 | |
| 852 | if (fb_get_options(connector->name, &option)) |
| 853 | return; |
| 854 | |
| 855 | if (!drm_mode_parse_command_line_for_connector(option, |
| 856 | connector, |
| 857 | mode)) |
| 858 | return; |
| 859 | |
| 860 | if (mode->force) { |
| 861 | const char *s; |
| 862 | |
| 863 | switch (mode->force) { |
| 864 | case DRM_FORCE_OFF: |
| 865 | s = "OFF"; |
| 866 | break; |
| 867 | case DRM_FORCE_ON_DIGITAL: |
| 868 | s = "ON - dig"; |
| 869 | break; |
| 870 | default: |
| 871 | case DRM_FORCE_ON: |
| 872 | s = "ON"; |
| 873 | break; |
| 874 | } |
| 875 | |
| 876 | DRM_INFO("forcing %s connector %s\n", connector->name, s); |
| 877 | connector->force = mode->force; |
| 878 | } |
| 879 | |
| 880 | DRM_DEBUG_KMS("cmdline mode for connector %s %dx%d@%dHz%s%s%s\n", |
| 881 | connector->name, |
| 882 | mode->xres, mode->yres, |
| 883 | mode->refresh_specified ? mode->refresh : 60, |
| 884 | mode->rb ? " reduced blanking" : "", |
| 885 | mode->margins ? " with margins" : "", |
| 886 | mode->interlace ? " interlaced" : ""); |
| 887 | } |
| 888 | |
| 889 | /** |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 890 | * drm_connector_init - Init a preallocated connector |
| 891 | * @dev: DRM device |
| 892 | * @connector: the connector to init |
| 893 | * @funcs: callbacks for this connector |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 894 | * @connector_type: user visible type of the connector |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 895 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 896 | * Initialises a preallocated connector. Connectors should be |
| 897 | * subclassed as part of driver connector objects. |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 898 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 899 | * Returns: |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 900 | * Zero on success, error code on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 901 | */ |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 902 | int drm_connector_init(struct drm_device *dev, |
| 903 | struct drm_connector *connector, |
| 904 | const struct drm_connector_funcs *funcs, |
| 905 | int connector_type) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 906 | { |
Rob Clark | ae16c59 | 2014-12-18 16:01:54 -0500 | [diff] [blame] | 907 | struct drm_mode_config *config = &dev->mode_config; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 908 | int ret; |
Ilia Mirkin | b21e3af | 2013-08-07 22:34:48 -0400 | [diff] [blame] | 909 | struct ida *connector_ida = |
| 910 | &drm_connector_enum_list[connector_type].ida; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 911 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 912 | drm_modeset_lock_all(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 913 | |
Dave Airlie | 2ee3945 | 2014-07-24 11:53:45 +1000 | [diff] [blame] | 914 | ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false); |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 915 | if (ret) |
Jani Nikula | 2abdd31 | 2014-05-14 16:58:19 +0300 | [diff] [blame] | 916 | goto out_unlock; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 917 | |
Paulo Zanoni | 7e3bdf4 | 2012-05-15 18:09:01 -0300 | [diff] [blame] | 918 | connector->base.properties = &connector->properties; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 919 | connector->dev = dev; |
| 920 | connector->funcs = funcs; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 921 | connector->connector_type = connector_type; |
| 922 | connector->connector_type_id = |
Ilia Mirkin | b21e3af | 2013-08-07 22:34:48 -0400 | [diff] [blame] | 923 | ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); |
| 924 | if (connector->connector_type_id < 0) { |
| 925 | ret = connector->connector_type_id; |
Jani Nikula | 2abdd31 | 2014-05-14 16:58:19 +0300 | [diff] [blame] | 926 | goto out_put; |
Ilia Mirkin | b21e3af | 2013-08-07 22:34:48 -0400 | [diff] [blame] | 927 | } |
Jani Nikula | 2abdd31 | 2014-05-14 16:58:19 +0300 | [diff] [blame] | 928 | connector->name = |
| 929 | kasprintf(GFP_KERNEL, "%s-%d", |
| 930 | drm_connector_enum_list[connector_type].name, |
| 931 | connector->connector_type_id); |
| 932 | if (!connector->name) { |
| 933 | ret = -ENOMEM; |
| 934 | goto out_put; |
| 935 | } |
| 936 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 937 | INIT_LIST_HEAD(&connector->probed_modes); |
| 938 | INIT_LIST_HEAD(&connector->modes); |
| 939 | connector->edid_blob_ptr = NULL; |
Daniel Vetter | 5e2cb2f | 2012-10-23 18:23:35 +0000 | [diff] [blame] | 940 | connector->status = connector_status_unknown; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 941 | |
Chris Wilson | eaf99c7 | 2014-08-06 10:08:32 +0200 | [diff] [blame] | 942 | drm_connector_get_cmdline_mode(connector); |
| 943 | |
Daniel Vetter | c7eb76f | 2014-11-19 18:38:06 +0100 | [diff] [blame] | 944 | /* We should add connectors at the end to avoid upsetting the connector |
| 945 | * index too much. */ |
Rob Clark | ae16c59 | 2014-12-18 16:01:54 -0500 | [diff] [blame] | 946 | list_add_tail(&connector->head, &config->connector_list); |
| 947 | config->num_connector++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 948 | |
Thomas Hellstrom | a7331e5 | 2011-10-22 10:36:19 +0200 | [diff] [blame] | 949 | if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) |
Rob Clark | 5849556 | 2012-10-11 20:50:56 -0500 | [diff] [blame] | 950 | drm_object_attach_property(&connector->base, |
Rob Clark | ae16c59 | 2014-12-18 16:01:54 -0500 | [diff] [blame] | 951 | config->edid_property, |
Thomas Hellstrom | a7331e5 | 2011-10-22 10:36:19 +0200 | [diff] [blame] | 952 | 0); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 953 | |
Rob Clark | 5849556 | 2012-10-11 20:50:56 -0500 | [diff] [blame] | 954 | drm_object_attach_property(&connector->base, |
Rob Clark | ae16c59 | 2014-12-18 16:01:54 -0500 | [diff] [blame] | 955 | config->dpms_property, 0); |
| 956 | |
| 957 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
| 958 | drm_object_attach_property(&connector->base, config->prop_crtc_id, 0); |
| 959 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 960 | |
Thomas Wood | 30f6570 | 2014-06-18 17:52:32 +0100 | [diff] [blame] | 961 | connector->debugfs_entry = NULL; |
| 962 | |
Jani Nikula | 2abdd31 | 2014-05-14 16:58:19 +0300 | [diff] [blame] | 963 | out_put: |
| 964 | if (ret) |
| 965 | drm_mode_object_put(dev, &connector->base); |
| 966 | |
| 967 | out_unlock: |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 968 | drm_modeset_unlock_all(dev); |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 969 | |
| 970 | return ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 971 | } |
| 972 | EXPORT_SYMBOL(drm_connector_init); |
| 973 | |
| 974 | /** |
| 975 | * drm_connector_cleanup - cleans up an initialised connector |
| 976 | * @connector: connector to cleanup |
| 977 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 978 | * Cleans up the connector but doesn't free the object. |
| 979 | */ |
| 980 | void drm_connector_cleanup(struct drm_connector *connector) |
| 981 | { |
| 982 | struct drm_device *dev = connector->dev; |
| 983 | struct drm_display_mode *mode, *t; |
| 984 | |
Dave Airlie | 40d9b04 | 2014-10-20 16:29:33 +1000 | [diff] [blame] | 985 | if (connector->tile_group) { |
| 986 | drm_mode_put_tile_group(dev, connector->tile_group); |
| 987 | connector->tile_group = NULL; |
| 988 | } |
| 989 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 990 | list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
| 991 | drm_mode_remove(connector, mode); |
| 992 | |
| 993 | list_for_each_entry_safe(mode, t, &connector->modes, head) |
| 994 | drm_mode_remove(connector, mode); |
| 995 | |
Ilia Mirkin | b21e3af | 2013-08-07 22:34:48 -0400 | [diff] [blame] | 996 | ida_remove(&drm_connector_enum_list[connector->connector_type].ida, |
| 997 | connector->connector_type_id); |
| 998 | |
Boris Brezillon | b5571e9 | 2014-07-22 12:09:10 +0200 | [diff] [blame] | 999 | kfree(connector->display_info.bus_formats); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1000 | drm_mode_object_put(dev, &connector->base); |
Jani Nikula | 2abdd31 | 2014-05-14 16:58:19 +0300 | [diff] [blame] | 1001 | kfree(connector->name); |
| 1002 | connector->name = NULL; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1003 | list_del(&connector->head); |
Joonyoung Shim | 6380c50 | 2011-08-27 02:06:21 +0000 | [diff] [blame] | 1004 | dev->mode_config.num_connector--; |
Thierry Reding | 3009c03 | 2014-11-25 12:09:49 +0100 | [diff] [blame] | 1005 | |
| 1006 | WARN_ON(connector->state && !connector->funcs->atomic_destroy_state); |
| 1007 | if (connector->state && connector->funcs->atomic_destroy_state) |
| 1008 | connector->funcs->atomic_destroy_state(connector, |
| 1009 | connector->state); |
Thierry Reding | a18c0af | 2014-12-10 11:38:49 +0100 | [diff] [blame] | 1010 | |
| 1011 | memset(connector, 0, sizeof(*connector)); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1012 | } |
| 1013 | EXPORT_SYMBOL(drm_connector_cleanup); |
| 1014 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1015 | /** |
Daniel Vetter | 10f637b | 2014-07-29 13:47:11 +0200 | [diff] [blame] | 1016 | * drm_connector_index - find the index of a registered connector |
| 1017 | * @connector: connector to find index for |
| 1018 | * |
| 1019 | * Given a registered connector, return the index of that connector within a DRM |
| 1020 | * device's list of connectors. |
| 1021 | */ |
| 1022 | unsigned int drm_connector_index(struct drm_connector *connector) |
| 1023 | { |
| 1024 | unsigned int index = 0; |
| 1025 | struct drm_connector *tmp; |
Daniel Vetter | c7eb76f | 2014-11-19 18:38:06 +0100 | [diff] [blame] | 1026 | struct drm_mode_config *config = &connector->dev->mode_config; |
| 1027 | |
| 1028 | WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); |
Daniel Vetter | 10f637b | 2014-07-29 13:47:11 +0200 | [diff] [blame] | 1029 | |
Daniel Vetter | 9a9f5ce | 2015-07-09 23:44:34 +0200 | [diff] [blame] | 1030 | drm_for_each_connector(tmp, connector->dev) { |
Daniel Vetter | 10f637b | 2014-07-29 13:47:11 +0200 | [diff] [blame] | 1031 | if (tmp == connector) |
| 1032 | return index; |
| 1033 | |
| 1034 | index++; |
| 1035 | } |
| 1036 | |
| 1037 | BUG(); |
| 1038 | } |
| 1039 | EXPORT_SYMBOL(drm_connector_index); |
| 1040 | |
| 1041 | /** |
Thomas Wood | 34ea3d3 | 2014-05-29 16:57:41 +0100 | [diff] [blame] | 1042 | * drm_connector_register - register a connector |
| 1043 | * @connector: the connector to register |
| 1044 | * |
| 1045 | * Register userspace interfaces for a connector |
| 1046 | * |
| 1047 | * Returns: |
| 1048 | * Zero on success, error code on failure. |
| 1049 | */ |
| 1050 | int drm_connector_register(struct drm_connector *connector) |
| 1051 | { |
Thomas Wood | 30f6570 | 2014-06-18 17:52:32 +0100 | [diff] [blame] | 1052 | int ret; |
| 1053 | |
Dave Airlie | 2ee3945 | 2014-07-24 11:53:45 +1000 | [diff] [blame] | 1054 | drm_mode_object_register(connector->dev, &connector->base); |
| 1055 | |
Thomas Wood | 30f6570 | 2014-06-18 17:52:32 +0100 | [diff] [blame] | 1056 | ret = drm_sysfs_connector_add(connector); |
| 1057 | if (ret) |
| 1058 | return ret; |
| 1059 | |
| 1060 | ret = drm_debugfs_connector_add(connector); |
| 1061 | if (ret) { |
| 1062 | drm_sysfs_connector_remove(connector); |
| 1063 | return ret; |
| 1064 | } |
| 1065 | |
| 1066 | return 0; |
Thomas Wood | 34ea3d3 | 2014-05-29 16:57:41 +0100 | [diff] [blame] | 1067 | } |
| 1068 | EXPORT_SYMBOL(drm_connector_register); |
| 1069 | |
| 1070 | /** |
| 1071 | * drm_connector_unregister - unregister a connector |
| 1072 | * @connector: the connector to unregister |
| 1073 | * |
| 1074 | * Unregister userspace interfaces for a connector |
| 1075 | */ |
| 1076 | void drm_connector_unregister(struct drm_connector *connector) |
| 1077 | { |
| 1078 | drm_sysfs_connector_remove(connector); |
Thomas Wood | 30f6570 | 2014-06-18 17:52:32 +0100 | [diff] [blame] | 1079 | drm_debugfs_connector_remove(connector); |
Thomas Wood | 34ea3d3 | 2014-05-29 16:57:41 +0100 | [diff] [blame] | 1080 | } |
| 1081 | EXPORT_SYMBOL(drm_connector_unregister); |
| 1082 | |
| 1083 | |
| 1084 | /** |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1085 | * drm_connector_unplug_all - unregister connector userspace interfaces |
| 1086 | * @dev: drm device |
| 1087 | * |
| 1088 | * This function unregisters all connector userspace interfaces in sysfs. Should |
| 1089 | * be call when the device is disconnected, e.g. from an usb driver's |
| 1090 | * ->disconnect callback. |
| 1091 | */ |
Dave Airlie | cbc7e22 | 2012-02-20 14:16:40 +0000 | [diff] [blame] | 1092 | void drm_connector_unplug_all(struct drm_device *dev) |
| 1093 | { |
| 1094 | struct drm_connector *connector; |
| 1095 | |
Daniel Vetter | 9a9f5ce | 2015-07-09 23:44:34 +0200 | [diff] [blame] | 1096 | /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ |
Dave Airlie | cbc7e22 | 2012-02-20 14:16:40 +0000 | [diff] [blame] | 1097 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
Thomas Wood | 34ea3d3 | 2014-05-29 16:57:41 +0100 | [diff] [blame] | 1098 | drm_connector_unregister(connector); |
Dave Airlie | cbc7e22 | 2012-02-20 14:16:40 +0000 | [diff] [blame] | 1099 | |
| 1100 | } |
| 1101 | EXPORT_SYMBOL(drm_connector_unplug_all); |
| 1102 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1103 | /** |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1104 | * drm_encoder_init - Init a preallocated encoder |
| 1105 | * @dev: drm device |
| 1106 | * @encoder: the encoder to init |
| 1107 | * @funcs: callbacks for this encoder |
| 1108 | * @encoder_type: user visible type of the encoder |
Ville Syrjälä | 13a3d91 | 2015-12-09 16:20:18 +0200 | [diff] [blame] | 1109 | * @name: printf style format string for the encoder name, or NULL for default name |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1110 | * |
| 1111 | * Initialises a preallocated encoder. Encoder should be |
| 1112 | * subclassed as part of driver encoder objects. |
| 1113 | * |
| 1114 | * Returns: |
| 1115 | * Zero on success, error code on failure. |
| 1116 | */ |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 1117 | int drm_encoder_init(struct drm_device *dev, |
Dave Airlie | cbc7e22 | 2012-02-20 14:16:40 +0000 | [diff] [blame] | 1118 | struct drm_encoder *encoder, |
| 1119 | const struct drm_encoder_funcs *funcs, |
Ville Syrjälä | 13a3d91 | 2015-12-09 16:20:18 +0200 | [diff] [blame] | 1120 | int encoder_type, const char *name, ...) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1121 | { |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 1122 | int ret; |
| 1123 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 1124 | drm_modeset_lock_all(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1125 | |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 1126 | ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
| 1127 | if (ret) |
Jani Nikula | e574894 | 2014-05-14 16:58:20 +0300 | [diff] [blame] | 1128 | goto out_unlock; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1129 | |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 1130 | encoder->dev = dev; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1131 | encoder->encoder_type = encoder_type; |
| 1132 | encoder->funcs = funcs; |
Ville Syrjälä | 86bf546 | 2015-12-08 18:41:52 +0200 | [diff] [blame] | 1133 | if (name) { |
| 1134 | va_list ap; |
| 1135 | |
| 1136 | va_start(ap, name); |
| 1137 | encoder->name = kvasprintf(GFP_KERNEL, name, ap); |
| 1138 | va_end(ap); |
| 1139 | } else { |
| 1140 | encoder->name = kasprintf(GFP_KERNEL, "%s-%d", |
| 1141 | drm_encoder_enum_list[encoder_type].name, |
| 1142 | encoder->base.id); |
| 1143 | } |
Jani Nikula | e574894 | 2014-05-14 16:58:20 +0300 | [diff] [blame] | 1144 | if (!encoder->name) { |
| 1145 | ret = -ENOMEM; |
| 1146 | goto out_put; |
| 1147 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1148 | |
| 1149 | list_add_tail(&encoder->head, &dev->mode_config.encoder_list); |
| 1150 | dev->mode_config.num_encoder++; |
| 1151 | |
Jani Nikula | e574894 | 2014-05-14 16:58:20 +0300 | [diff] [blame] | 1152 | out_put: |
| 1153 | if (ret) |
| 1154 | drm_mode_object_put(dev, &encoder->base); |
| 1155 | |
| 1156 | out_unlock: |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 1157 | drm_modeset_unlock_all(dev); |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 1158 | |
| 1159 | return ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1160 | } |
| 1161 | EXPORT_SYMBOL(drm_encoder_init); |
| 1162 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1163 | /** |
| 1164 | * drm_encoder_cleanup - cleans up an initialised encoder |
| 1165 | * @encoder: encoder to cleanup |
| 1166 | * |
| 1167 | * Cleans up the encoder but doesn't free the object. |
| 1168 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1169 | void drm_encoder_cleanup(struct drm_encoder *encoder) |
| 1170 | { |
| 1171 | struct drm_device *dev = encoder->dev; |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 1172 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 1173 | drm_modeset_lock_all(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1174 | drm_mode_object_put(dev, &encoder->base); |
Jani Nikula | e574894 | 2014-05-14 16:58:20 +0300 | [diff] [blame] | 1175 | kfree(encoder->name); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1176 | list_del(&encoder->head); |
Joonyoung Shim | 6380c50 | 2011-08-27 02:06:21 +0000 | [diff] [blame] | 1177 | dev->mode_config.num_encoder--; |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 1178 | drm_modeset_unlock_all(dev); |
Thierry Reding | a18c0af | 2014-12-10 11:38:49 +0100 | [diff] [blame] | 1179 | |
| 1180 | memset(encoder, 0, sizeof(*encoder)); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1181 | } |
| 1182 | EXPORT_SYMBOL(drm_encoder_cleanup); |
| 1183 | |
Ville Syrjälä | 9f4c97a | 2015-12-08 18:41:54 +0200 | [diff] [blame] | 1184 | static unsigned int drm_num_planes(struct drm_device *dev) |
| 1185 | { |
| 1186 | unsigned int num = 0; |
| 1187 | struct drm_plane *tmp; |
| 1188 | |
| 1189 | drm_for_each_plane(tmp, dev) { |
| 1190 | num++; |
| 1191 | } |
| 1192 | |
| 1193 | return num; |
| 1194 | } |
| 1195 | |
Ville Syrjälä | 35f2c3a | 2013-06-05 15:39:56 +0300 | [diff] [blame] | 1196 | /** |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1197 | * drm_universal_plane_init - Initialize a new universal plane object |
Ville Syrjälä | 35f2c3a | 2013-06-05 15:39:56 +0300 | [diff] [blame] | 1198 | * @dev: DRM device |
| 1199 | * @plane: plane object to init |
| 1200 | * @possible_crtcs: bitmask of possible CRTCs |
| 1201 | * @funcs: callbacks for the new plane |
| 1202 | * @formats: array of supported formats (%DRM_FORMAT_*) |
| 1203 | * @format_count: number of elements in @formats |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1204 | * @type: type of plane (overlay, primary, cursor) |
Ville Syrjälä | b0b3b79 | 2015-12-09 16:19:55 +0200 | [diff] [blame] | 1205 | * @name: printf style format string for the plane name, or NULL for default name |
Ville Syrjälä | 35f2c3a | 2013-06-05 15:39:56 +0300 | [diff] [blame] | 1206 | * |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1207 | * Initializes a plane object of type @type. |
Ville Syrjälä | 35f2c3a | 2013-06-05 15:39:56 +0300 | [diff] [blame] | 1208 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1209 | * Returns: |
Ville Syrjälä | 35f2c3a | 2013-06-05 15:39:56 +0300 | [diff] [blame] | 1210 | * Zero on success, error code on failure. |
| 1211 | */ |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1212 | int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, |
| 1213 | unsigned long possible_crtcs, |
| 1214 | const struct drm_plane_funcs *funcs, |
Thierry Reding | 45e3743 | 2015-08-12 16:54:28 +0200 | [diff] [blame] | 1215 | const uint32_t *formats, unsigned int format_count, |
Ville Syrjälä | b0b3b79 | 2015-12-09 16:19:55 +0200 | [diff] [blame] | 1216 | enum drm_plane_type type, |
| 1217 | const char *name, ...) |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1218 | { |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 1219 | struct drm_mode_config *config = &dev->mode_config; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 1220 | int ret; |
| 1221 | |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 1222 | ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); |
| 1223 | if (ret) |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 1224 | return ret; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 1225 | |
Daniel Vetter | 4d02e2d | 2014-11-11 10:12:00 +0100 | [diff] [blame] | 1226 | drm_modeset_lock_init(&plane->mutex); |
| 1227 | |
Rob Clark | 4d93914 | 2012-05-17 02:23:27 -0600 | [diff] [blame] | 1228 | plane->base.properties = &plane->properties; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1229 | plane->dev = dev; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1230 | plane->funcs = funcs; |
Thierry Reding | 2f6c538 | 2014-12-10 13:03:36 +0100 | [diff] [blame] | 1231 | plane->format_types = kmalloc_array(format_count, sizeof(uint32_t), |
| 1232 | GFP_KERNEL); |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1233 | if (!plane->format_types) { |
| 1234 | DRM_DEBUG_KMS("out of memory when allocating plane\n"); |
| 1235 | drm_mode_object_put(dev, &plane->base); |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 1236 | return -ENOMEM; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1237 | } |
| 1238 | |
Ville Syrjälä | 9f4c97a | 2015-12-08 18:41:54 +0200 | [diff] [blame] | 1239 | if (name) { |
| 1240 | va_list ap; |
| 1241 | |
| 1242 | va_start(ap, name); |
| 1243 | plane->name = kvasprintf(GFP_KERNEL, name, ap); |
| 1244 | va_end(ap); |
| 1245 | } else { |
| 1246 | plane->name = kasprintf(GFP_KERNEL, "plane-%d", |
| 1247 | drm_num_planes(dev)); |
| 1248 | } |
| 1249 | if (!plane->name) { |
| 1250 | kfree(plane->format_types); |
| 1251 | drm_mode_object_put(dev, &plane->base); |
| 1252 | return -ENOMEM; |
| 1253 | } |
| 1254 | |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 1255 | memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1256 | plane->format_count = format_count; |
| 1257 | plane->possible_crtcs = possible_crtcs; |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1258 | plane->type = type; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1259 | |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 1260 | list_add_tail(&plane->head, &config->plane_list); |
| 1261 | config->num_total_plane++; |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1262 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 1263 | config->num_overlay_plane++; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1264 | |
Rob Clark | 9922ab5 | 2014-04-01 20:16:57 -0400 | [diff] [blame] | 1265 | drm_object_attach_property(&plane->base, |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 1266 | config->plane_type_property, |
Rob Clark | 9922ab5 | 2014-04-01 20:16:57 -0400 | [diff] [blame] | 1267 | plane->type); |
| 1268 | |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 1269 | if (drm_core_check_feature(dev, DRIVER_ATOMIC)) { |
| 1270 | drm_object_attach_property(&plane->base, config->prop_fb_id, 0); |
| 1271 | drm_object_attach_property(&plane->base, config->prop_crtc_id, 0); |
| 1272 | drm_object_attach_property(&plane->base, config->prop_crtc_x, 0); |
| 1273 | drm_object_attach_property(&plane->base, config->prop_crtc_y, 0); |
| 1274 | drm_object_attach_property(&plane->base, config->prop_crtc_w, 0); |
| 1275 | drm_object_attach_property(&plane->base, config->prop_crtc_h, 0); |
| 1276 | drm_object_attach_property(&plane->base, config->prop_src_x, 0); |
| 1277 | drm_object_attach_property(&plane->base, config->prop_src_y, 0); |
| 1278 | drm_object_attach_property(&plane->base, config->prop_src_w, 0); |
| 1279 | drm_object_attach_property(&plane->base, config->prop_src_h, 0); |
| 1280 | } |
| 1281 | |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 1282 | return 0; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1283 | } |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1284 | EXPORT_SYMBOL(drm_universal_plane_init); |
| 1285 | |
| 1286 | /** |
| 1287 | * drm_plane_init - Initialize a legacy plane |
| 1288 | * @dev: DRM device |
| 1289 | * @plane: plane object to init |
| 1290 | * @possible_crtcs: bitmask of possible CRTCs |
| 1291 | * @funcs: callbacks for the new plane |
| 1292 | * @formats: array of supported formats (%DRM_FORMAT_*) |
| 1293 | * @format_count: number of elements in @formats |
| 1294 | * @is_primary: plane type (primary vs overlay) |
| 1295 | * |
| 1296 | * Legacy API to initialize a DRM plane. |
| 1297 | * |
| 1298 | * New drivers should call drm_universal_plane_init() instead. |
| 1299 | * |
| 1300 | * Returns: |
| 1301 | * Zero on success, error code on failure. |
| 1302 | */ |
| 1303 | int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, |
| 1304 | unsigned long possible_crtcs, |
| 1305 | const struct drm_plane_funcs *funcs, |
Thierry Reding | 45e3743 | 2015-08-12 16:54:28 +0200 | [diff] [blame] | 1306 | const uint32_t *formats, unsigned int format_count, |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1307 | bool is_primary) |
| 1308 | { |
| 1309 | enum drm_plane_type type; |
| 1310 | |
| 1311 | type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; |
| 1312 | return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, |
Ville Syrjälä | b0b3b79 | 2015-12-09 16:19:55 +0200 | [diff] [blame] | 1313 | formats, format_count, type, NULL); |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1314 | } |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1315 | EXPORT_SYMBOL(drm_plane_init); |
| 1316 | |
Ville Syrjälä | 35f2c3a | 2013-06-05 15:39:56 +0300 | [diff] [blame] | 1317 | /** |
| 1318 | * drm_plane_cleanup - Clean up the core plane usage |
| 1319 | * @plane: plane to cleanup |
| 1320 | * |
| 1321 | * This function cleans up @plane and removes it from the DRM mode setting |
| 1322 | * core. Note that the function does *not* free the plane structure itself, |
| 1323 | * this is the responsibility of the caller. |
| 1324 | */ |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1325 | void drm_plane_cleanup(struct drm_plane *plane) |
| 1326 | { |
| 1327 | struct drm_device *dev = plane->dev; |
| 1328 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 1329 | drm_modeset_lock_all(dev); |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1330 | kfree(plane->format_types); |
| 1331 | drm_mode_object_put(dev, &plane->base); |
Matt Roper | dc415ff | 2014-04-01 15:22:36 -0700 | [diff] [blame] | 1332 | |
| 1333 | BUG_ON(list_empty(&plane->head)); |
| 1334 | |
| 1335 | list_del(&plane->head); |
| 1336 | dev->mode_config.num_total_plane--; |
| 1337 | if (plane->type == DRM_PLANE_TYPE_OVERLAY) |
| 1338 | dev->mode_config.num_overlay_plane--; |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 1339 | drm_modeset_unlock_all(dev); |
Thierry Reding | 3009c03 | 2014-11-25 12:09:49 +0100 | [diff] [blame] | 1340 | |
| 1341 | WARN_ON(plane->state && !plane->funcs->atomic_destroy_state); |
| 1342 | if (plane->state && plane->funcs->atomic_destroy_state) |
| 1343 | plane->funcs->atomic_destroy_state(plane, plane->state); |
Thierry Reding | a18c0af | 2014-12-10 11:38:49 +0100 | [diff] [blame] | 1344 | |
Ville Syrjälä | 9f4c97a | 2015-12-08 18:41:54 +0200 | [diff] [blame] | 1345 | kfree(plane->name); |
| 1346 | |
Thierry Reding | a18c0af | 2014-12-10 11:38:49 +0100 | [diff] [blame] | 1347 | memset(plane, 0, sizeof(*plane)); |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 1348 | } |
| 1349 | EXPORT_SYMBOL(drm_plane_cleanup); |
| 1350 | |
Ville Syrjälä | 35f2c3a | 2013-06-05 15:39:56 +0300 | [diff] [blame] | 1351 | /** |
Daniel Vetter | 10f637b | 2014-07-29 13:47:11 +0200 | [diff] [blame] | 1352 | * drm_plane_index - find the index of a registered plane |
| 1353 | * @plane: plane to find index for |
| 1354 | * |
| 1355 | * Given a registered plane, return the index of that CRTC within a DRM |
| 1356 | * device's list of planes. |
| 1357 | */ |
| 1358 | unsigned int drm_plane_index(struct drm_plane *plane) |
| 1359 | { |
| 1360 | unsigned int index = 0; |
| 1361 | struct drm_plane *tmp; |
| 1362 | |
Daniel Vetter | e4f6254 | 2015-07-09 23:44:35 +0200 | [diff] [blame] | 1363 | drm_for_each_plane(tmp, plane->dev) { |
Daniel Vetter | 10f637b | 2014-07-29 13:47:11 +0200 | [diff] [blame] | 1364 | if (tmp == plane) |
| 1365 | return index; |
| 1366 | |
| 1367 | index++; |
| 1368 | } |
| 1369 | |
| 1370 | BUG(); |
| 1371 | } |
| 1372 | EXPORT_SYMBOL(drm_plane_index); |
| 1373 | |
| 1374 | /** |
Chandra Konduru | f81338a | 2015-04-09 17:36:21 -0700 | [diff] [blame] | 1375 | * drm_plane_from_index - find the registered plane at an index |
| 1376 | * @dev: DRM device |
| 1377 | * @idx: index of registered plane to find for |
| 1378 | * |
| 1379 | * Given a plane index, return the registered plane from DRM device's |
| 1380 | * list of planes with matching index. |
| 1381 | */ |
| 1382 | struct drm_plane * |
| 1383 | drm_plane_from_index(struct drm_device *dev, int idx) |
| 1384 | { |
| 1385 | struct drm_plane *plane; |
| 1386 | unsigned int i = 0; |
| 1387 | |
Daniel Vetter | 6295d60 | 2015-07-09 23:44:25 +0200 | [diff] [blame] | 1388 | drm_for_each_plane(plane, dev) { |
Chandra Konduru | f81338a | 2015-04-09 17:36:21 -0700 | [diff] [blame] | 1389 | if (i == idx) |
| 1390 | return plane; |
| 1391 | i++; |
| 1392 | } |
| 1393 | return NULL; |
| 1394 | } |
| 1395 | EXPORT_SYMBOL(drm_plane_from_index); |
| 1396 | |
| 1397 | /** |
Ville Syrjälä | 35f2c3a | 2013-06-05 15:39:56 +0300 | [diff] [blame] | 1398 | * drm_plane_force_disable - Forcibly disable a plane |
| 1399 | * @plane: plane to disable |
| 1400 | * |
| 1401 | * Forces the plane to be disabled. |
| 1402 | * |
| 1403 | * Used when the plane's current framebuffer is destroyed, |
| 1404 | * and when restoring fbdev mode. |
| 1405 | */ |
Ville Syrjälä | 9125e61 | 2013-06-03 16:10:40 +0300 | [diff] [blame] | 1406 | void drm_plane_force_disable(struct drm_plane *plane) |
| 1407 | { |
| 1408 | int ret; |
| 1409 | |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 1410 | if (!plane->fb) |
Ville Syrjälä | 9125e61 | 2013-06-03 16:10:40 +0300 | [diff] [blame] | 1411 | return; |
| 1412 | |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 1413 | plane->old_fb = plane->fb; |
Ville Syrjälä | 9125e61 | 2013-06-03 16:10:40 +0300 | [diff] [blame] | 1414 | ret = plane->funcs->disable_plane(plane); |
Daniel Vetter | 731cce4 | 2014-04-23 10:24:11 +0200 | [diff] [blame] | 1415 | if (ret) { |
Ville Syrjälä | 9125e61 | 2013-06-03 16:10:40 +0300 | [diff] [blame] | 1416 | DRM_ERROR("failed to disable plane with busy fb\n"); |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 1417 | plane->old_fb = NULL; |
Daniel Vetter | 731cce4 | 2014-04-23 10:24:11 +0200 | [diff] [blame] | 1418 | return; |
| 1419 | } |
Ville Syrjälä | 9125e61 | 2013-06-03 16:10:40 +0300 | [diff] [blame] | 1420 | /* disconnect the plane from the fb and crtc: */ |
Daniel Vetter | 220dd2b | 2015-02-27 12:58:13 +0100 | [diff] [blame] | 1421 | drm_framebuffer_unreference(plane->old_fb); |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 1422 | plane->old_fb = NULL; |
Ville Syrjälä | 9125e61 | 2013-06-03 16:10:40 +0300 | [diff] [blame] | 1423 | plane->fb = NULL; |
| 1424 | plane->crtc = NULL; |
| 1425 | } |
| 1426 | EXPORT_SYMBOL(drm_plane_force_disable); |
| 1427 | |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 1428 | static int drm_mode_create_standard_properties(struct drm_device *dev) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1429 | { |
Rob Clark | 356af0e | 2014-12-18 16:01:52 -0500 | [diff] [blame] | 1430 | struct drm_property *prop; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1431 | |
| 1432 | /* |
| 1433 | * Standard properties (apply to all connectors) |
| 1434 | */ |
Rob Clark | 356af0e | 2014-12-18 16:01:52 -0500 | [diff] [blame] | 1435 | prop = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1436 | DRM_MODE_PROP_IMMUTABLE, |
| 1437 | "EDID", 0); |
Rob Clark | 356af0e | 2014-12-18 16:01:52 -0500 | [diff] [blame] | 1438 | if (!prop) |
| 1439 | return -ENOMEM; |
| 1440 | dev->mode_config.edid_property = prop; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1441 | |
Rob Clark | 356af0e | 2014-12-18 16:01:52 -0500 | [diff] [blame] | 1442 | prop = drm_property_create_enum(dev, 0, |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1443 | "DPMS", drm_dpms_enum_list, |
| 1444 | ARRAY_SIZE(drm_dpms_enum_list)); |
Rob Clark | 356af0e | 2014-12-18 16:01:52 -0500 | [diff] [blame] | 1445 | if (!prop) |
| 1446 | return -ENOMEM; |
| 1447 | dev->mode_config.dpms_property = prop; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1448 | |
Rob Clark | 356af0e | 2014-12-18 16:01:52 -0500 | [diff] [blame] | 1449 | prop = drm_property_create(dev, |
| 1450 | DRM_MODE_PROP_BLOB | |
| 1451 | DRM_MODE_PROP_IMMUTABLE, |
| 1452 | "PATH", 0); |
| 1453 | if (!prop) |
| 1454 | return -ENOMEM; |
| 1455 | dev->mode_config.path_property = prop; |
Dave Airlie | 43aba7e | 2014-06-05 14:01:31 +1000 | [diff] [blame] | 1456 | |
Rob Clark | 356af0e | 2014-12-18 16:01:52 -0500 | [diff] [blame] | 1457 | prop = drm_property_create(dev, |
| 1458 | DRM_MODE_PROP_BLOB | |
| 1459 | DRM_MODE_PROP_IMMUTABLE, |
| 1460 | "TILE", 0); |
| 1461 | if (!prop) |
| 1462 | return -ENOMEM; |
| 1463 | dev->mode_config.tile_property = prop; |
Dave Airlie | 6f134d7 | 2014-10-20 16:30:50 +1000 | [diff] [blame] | 1464 | |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 1465 | prop = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
Rob Clark | 9922ab5 | 2014-04-01 20:16:57 -0400 | [diff] [blame] | 1466 | "type", drm_plane_type_enum_list, |
| 1467 | ARRAY_SIZE(drm_plane_type_enum_list)); |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 1468 | if (!prop) |
| 1469 | return -ENOMEM; |
| 1470 | dev->mode_config.plane_type_property = prop; |
| 1471 | |
| 1472 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
| 1473 | "SRC_X", 0, UINT_MAX); |
| 1474 | if (!prop) |
| 1475 | return -ENOMEM; |
| 1476 | dev->mode_config.prop_src_x = prop; |
| 1477 | |
| 1478 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
| 1479 | "SRC_Y", 0, UINT_MAX); |
| 1480 | if (!prop) |
| 1481 | return -ENOMEM; |
| 1482 | dev->mode_config.prop_src_y = prop; |
| 1483 | |
| 1484 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
| 1485 | "SRC_W", 0, UINT_MAX); |
| 1486 | if (!prop) |
| 1487 | return -ENOMEM; |
| 1488 | dev->mode_config.prop_src_w = prop; |
| 1489 | |
| 1490 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
| 1491 | "SRC_H", 0, UINT_MAX); |
| 1492 | if (!prop) |
| 1493 | return -ENOMEM; |
| 1494 | dev->mode_config.prop_src_h = prop; |
| 1495 | |
| 1496 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, |
| 1497 | "CRTC_X", INT_MIN, INT_MAX); |
| 1498 | if (!prop) |
| 1499 | return -ENOMEM; |
| 1500 | dev->mode_config.prop_crtc_x = prop; |
| 1501 | |
| 1502 | prop = drm_property_create_signed_range(dev, DRM_MODE_PROP_ATOMIC, |
| 1503 | "CRTC_Y", INT_MIN, INT_MAX); |
| 1504 | if (!prop) |
| 1505 | return -ENOMEM; |
| 1506 | dev->mode_config.prop_crtc_y = prop; |
| 1507 | |
| 1508 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
| 1509 | "CRTC_W", 0, INT_MAX); |
| 1510 | if (!prop) |
| 1511 | return -ENOMEM; |
| 1512 | dev->mode_config.prop_crtc_w = prop; |
| 1513 | |
| 1514 | prop = drm_property_create_range(dev, DRM_MODE_PROP_ATOMIC, |
| 1515 | "CRTC_H", 0, INT_MAX); |
| 1516 | if (!prop) |
| 1517 | return -ENOMEM; |
| 1518 | dev->mode_config.prop_crtc_h = prop; |
| 1519 | |
| 1520 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, |
| 1521 | "FB_ID", DRM_MODE_OBJECT_FB); |
| 1522 | if (!prop) |
| 1523 | return -ENOMEM; |
| 1524 | dev->mode_config.prop_fb_id = prop; |
| 1525 | |
| 1526 | prop = drm_property_create_object(dev, DRM_MODE_PROP_ATOMIC, |
| 1527 | "CRTC_ID", DRM_MODE_OBJECT_CRTC); |
| 1528 | if (!prop) |
| 1529 | return -ENOMEM; |
| 1530 | dev->mode_config.prop_crtc_id = prop; |
Rob Clark | 9922ab5 | 2014-04-01 20:16:57 -0400 | [diff] [blame] | 1531 | |
Daniel Vetter | eab3bbe | 2015-01-22 16:36:21 +0100 | [diff] [blame] | 1532 | prop = drm_property_create_bool(dev, DRM_MODE_PROP_ATOMIC, |
| 1533 | "ACTIVE"); |
| 1534 | if (!prop) |
| 1535 | return -ENOMEM; |
| 1536 | dev->mode_config.prop_active = prop; |
| 1537 | |
Daniel Stone | 955f3c3 | 2015-05-25 19:11:52 +0100 | [diff] [blame] | 1538 | prop = drm_property_create(dev, |
| 1539 | DRM_MODE_PROP_ATOMIC | DRM_MODE_PROP_BLOB, |
| 1540 | "MODE_ID", 0); |
| 1541 | if (!prop) |
| 1542 | return -ENOMEM; |
| 1543 | dev->mode_config.prop_mode_id = prop; |
| 1544 | |
Rob Clark | 9922ab5 | 2014-04-01 20:16:57 -0400 | [diff] [blame] | 1545 | return 0; |
| 1546 | } |
| 1547 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1548 | /** |
| 1549 | * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties |
| 1550 | * @dev: DRM device |
| 1551 | * |
| 1552 | * Called by a driver the first time a DVI-I connector is made. |
| 1553 | */ |
| 1554 | int drm_mode_create_dvi_i_properties(struct drm_device *dev) |
| 1555 | { |
| 1556 | struct drm_property *dvi_i_selector; |
| 1557 | struct drm_property *dvi_i_subconnector; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1558 | |
| 1559 | if (dev->mode_config.dvi_i_select_subconnector_property) |
| 1560 | return 0; |
| 1561 | |
| 1562 | dvi_i_selector = |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1563 | drm_property_create_enum(dev, 0, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1564 | "select subconnector", |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1565 | drm_dvi_i_select_enum_list, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1566 | ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1567 | dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
| 1568 | |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1569 | dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1570 | "subconnector", |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1571 | drm_dvi_i_subconnector_enum_list, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1572 | ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1573 | dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
| 1574 | |
| 1575 | return 0; |
| 1576 | } |
| 1577 | EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); |
| 1578 | |
| 1579 | /** |
| 1580 | * drm_create_tv_properties - create TV specific connector properties |
| 1581 | * @dev: DRM device |
| 1582 | * @num_modes: number of different TV formats (modes) supported |
| 1583 | * @modes: array of pointers to strings containing name of each format |
| 1584 | * |
| 1585 | * Called by a driver's TV initialization routine, this function creates |
| 1586 | * the TV specific connector properties for a given device. Caller is |
| 1587 | * responsible for allocating a list of format names and passing them to |
| 1588 | * this routine. |
| 1589 | */ |
Thierry Reding | 2f76331 | 2014-10-13 12:45:57 +0200 | [diff] [blame] | 1590 | int drm_mode_create_tv_properties(struct drm_device *dev, |
| 1591 | unsigned int num_modes, |
Ville Syrjälä | b7c914b | 2015-08-31 15:09:26 +0300 | [diff] [blame] | 1592 | const char * const modes[]) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1593 | { |
| 1594 | struct drm_property *tv_selector; |
| 1595 | struct drm_property *tv_subconnector; |
Thierry Reding | 2f76331 | 2014-10-13 12:45:57 +0200 | [diff] [blame] | 1596 | unsigned int i; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1597 | |
| 1598 | if (dev->mode_config.tv_select_subconnector_property) |
| 1599 | return 0; |
| 1600 | |
| 1601 | /* |
| 1602 | * Basic connector properties |
| 1603 | */ |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1604 | tv_selector = drm_property_create_enum(dev, 0, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1605 | "select subconnector", |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1606 | drm_tv_select_enum_list, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1607 | ARRAY_SIZE(drm_tv_select_enum_list)); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1608 | if (!tv_selector) |
| 1609 | goto nomem; |
| 1610 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1611 | dev->mode_config.tv_select_subconnector_property = tv_selector; |
| 1612 | |
| 1613 | tv_subconnector = |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1614 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
| 1615 | "subconnector", |
| 1616 | drm_tv_subconnector_enum_list, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1617 | ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1618 | if (!tv_subconnector) |
| 1619 | goto nomem; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1620 | dev->mode_config.tv_subconnector_property = tv_subconnector; |
| 1621 | |
| 1622 | /* |
| 1623 | * Other, TV specific properties: margins & TV modes. |
| 1624 | */ |
| 1625 | dev->mode_config.tv_left_margin_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1626 | drm_property_create_range(dev, 0, "left margin", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1627 | if (!dev->mode_config.tv_left_margin_property) |
| 1628 | goto nomem; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1629 | |
| 1630 | dev->mode_config.tv_right_margin_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1631 | drm_property_create_range(dev, 0, "right margin", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1632 | if (!dev->mode_config.tv_right_margin_property) |
| 1633 | goto nomem; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1634 | |
| 1635 | dev->mode_config.tv_top_margin_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1636 | drm_property_create_range(dev, 0, "top margin", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1637 | if (!dev->mode_config.tv_top_margin_property) |
| 1638 | goto nomem; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1639 | |
| 1640 | dev->mode_config.tv_bottom_margin_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1641 | drm_property_create_range(dev, 0, "bottom margin", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1642 | if (!dev->mode_config.tv_bottom_margin_property) |
| 1643 | goto nomem; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1644 | |
| 1645 | dev->mode_config.tv_mode_property = |
| 1646 | drm_property_create(dev, DRM_MODE_PROP_ENUM, |
| 1647 | "mode", num_modes); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1648 | if (!dev->mode_config.tv_mode_property) |
| 1649 | goto nomem; |
| 1650 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1651 | for (i = 0; i < num_modes; i++) |
| 1652 | drm_property_add_enum(dev->mode_config.tv_mode_property, i, |
| 1653 | i, modes[i]); |
| 1654 | |
Francisco Jerez | b6b7902 | 2009-08-02 04:19:20 +0200 | [diff] [blame] | 1655 | dev->mode_config.tv_brightness_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1656 | drm_property_create_range(dev, 0, "brightness", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1657 | if (!dev->mode_config.tv_brightness_property) |
| 1658 | goto nomem; |
Francisco Jerez | b6b7902 | 2009-08-02 04:19:20 +0200 | [diff] [blame] | 1659 | |
| 1660 | dev->mode_config.tv_contrast_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1661 | drm_property_create_range(dev, 0, "contrast", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1662 | if (!dev->mode_config.tv_contrast_property) |
| 1663 | goto nomem; |
Francisco Jerez | b6b7902 | 2009-08-02 04:19:20 +0200 | [diff] [blame] | 1664 | |
| 1665 | dev->mode_config.tv_flicker_reduction_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1666 | drm_property_create_range(dev, 0, "flicker reduction", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1667 | if (!dev->mode_config.tv_flicker_reduction_property) |
| 1668 | goto nomem; |
Francisco Jerez | b6b7902 | 2009-08-02 04:19:20 +0200 | [diff] [blame] | 1669 | |
Francisco Jerez | a75f023 | 2009-08-12 02:30:10 +0200 | [diff] [blame] | 1670 | dev->mode_config.tv_overscan_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1671 | drm_property_create_range(dev, 0, "overscan", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1672 | if (!dev->mode_config.tv_overscan_property) |
| 1673 | goto nomem; |
Francisco Jerez | a75f023 | 2009-08-12 02:30:10 +0200 | [diff] [blame] | 1674 | |
| 1675 | dev->mode_config.tv_saturation_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1676 | drm_property_create_range(dev, 0, "saturation", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1677 | if (!dev->mode_config.tv_saturation_property) |
| 1678 | goto nomem; |
Francisco Jerez | a75f023 | 2009-08-12 02:30:10 +0200 | [diff] [blame] | 1679 | |
| 1680 | dev->mode_config.tv_hue_property = |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 1681 | drm_property_create_range(dev, 0, "hue", 0, 100); |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1682 | if (!dev->mode_config.tv_hue_property) |
| 1683 | goto nomem; |
Francisco Jerez | a75f023 | 2009-08-12 02:30:10 +0200 | [diff] [blame] | 1684 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1685 | return 0; |
Insu Yun | 48aa1e7 | 2015-10-19 16:33:30 +0000 | [diff] [blame] | 1686 | nomem: |
| 1687 | return -ENOMEM; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1688 | } |
| 1689 | EXPORT_SYMBOL(drm_mode_create_tv_properties); |
| 1690 | |
| 1691 | /** |
| 1692 | * drm_mode_create_scaling_mode_property - create scaling mode property |
| 1693 | * @dev: DRM device |
| 1694 | * |
| 1695 | * Called by a driver the first time it's needed, must be attached to desired |
| 1696 | * connectors. |
| 1697 | */ |
| 1698 | int drm_mode_create_scaling_mode_property(struct drm_device *dev) |
| 1699 | { |
| 1700 | struct drm_property *scaling_mode; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1701 | |
| 1702 | if (dev->mode_config.scaling_mode_property) |
| 1703 | return 0; |
| 1704 | |
| 1705 | scaling_mode = |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1706 | drm_property_create_enum(dev, 0, "scaling mode", |
| 1707 | drm_scaling_mode_enum_list, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1708 | ARRAY_SIZE(drm_scaling_mode_enum_list)); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1709 | |
| 1710 | dev->mode_config.scaling_mode_property = scaling_mode; |
| 1711 | |
| 1712 | return 0; |
| 1713 | } |
| 1714 | EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); |
| 1715 | |
| 1716 | /** |
Vandana Kannan | ff587e4 | 2014-06-11 10:46:48 +0530 | [diff] [blame] | 1717 | * drm_mode_create_aspect_ratio_property - create aspect ratio property |
| 1718 | * @dev: DRM device |
| 1719 | * |
| 1720 | * Called by a driver the first time it's needed, must be attached to desired |
| 1721 | * connectors. |
| 1722 | * |
| 1723 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 1724 | * Zero on success, negative errno on failure. |
Vandana Kannan | ff587e4 | 2014-06-11 10:46:48 +0530 | [diff] [blame] | 1725 | */ |
| 1726 | int drm_mode_create_aspect_ratio_property(struct drm_device *dev) |
| 1727 | { |
| 1728 | if (dev->mode_config.aspect_ratio_property) |
| 1729 | return 0; |
| 1730 | |
| 1731 | dev->mode_config.aspect_ratio_property = |
| 1732 | drm_property_create_enum(dev, 0, "aspect ratio", |
| 1733 | drm_aspect_ratio_enum_list, |
| 1734 | ARRAY_SIZE(drm_aspect_ratio_enum_list)); |
| 1735 | |
| 1736 | if (dev->mode_config.aspect_ratio_property == NULL) |
| 1737 | return -ENOMEM; |
| 1738 | |
| 1739 | return 0; |
| 1740 | } |
| 1741 | EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property); |
| 1742 | |
| 1743 | /** |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 1744 | * drm_mode_create_dirty_property - create dirty property |
| 1745 | * @dev: DRM device |
| 1746 | * |
| 1747 | * Called by a driver the first time it's needed, must be attached to desired |
| 1748 | * connectors. |
| 1749 | */ |
| 1750 | int drm_mode_create_dirty_info_property(struct drm_device *dev) |
| 1751 | { |
| 1752 | struct drm_property *dirty_info; |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 1753 | |
| 1754 | if (dev->mode_config.dirty_info_property) |
| 1755 | return 0; |
| 1756 | |
| 1757 | dirty_info = |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1758 | drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 1759 | "dirty", |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 1760 | drm_dirty_info_enum_list, |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 1761 | ARRAY_SIZE(drm_dirty_info_enum_list)); |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 1762 | dev->mode_config.dirty_info_property = dirty_info; |
| 1763 | |
| 1764 | return 0; |
| 1765 | } |
| 1766 | EXPORT_SYMBOL(drm_mode_create_dirty_info_property); |
| 1767 | |
Dave Airlie | 5bb2bbf | 2014-11-10 10:18:15 +1000 | [diff] [blame] | 1768 | /** |
| 1769 | * drm_mode_create_suggested_offset_properties - create suggests offset properties |
| 1770 | * @dev: DRM device |
| 1771 | * |
| 1772 | * Create the the suggested x/y offset property for connectors. |
| 1773 | */ |
| 1774 | int drm_mode_create_suggested_offset_properties(struct drm_device *dev) |
| 1775 | { |
| 1776 | if (dev->mode_config.suggested_x_property && dev->mode_config.suggested_y_property) |
| 1777 | return 0; |
| 1778 | |
| 1779 | dev->mode_config.suggested_x_property = |
| 1780 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested X", 0, 0xffffffff); |
| 1781 | |
| 1782 | dev->mode_config.suggested_y_property = |
| 1783 | drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE, "suggested Y", 0, 0xffffffff); |
| 1784 | |
| 1785 | if (dev->mode_config.suggested_x_property == NULL || |
| 1786 | dev->mode_config.suggested_y_property == NULL) |
| 1787 | return -ENOMEM; |
| 1788 | return 0; |
| 1789 | } |
| 1790 | EXPORT_SYMBOL(drm_mode_create_suggested_offset_properties); |
| 1791 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1792 | /** |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1793 | * drm_mode_getresources - get graphics configuration |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 1794 | * @dev: drm device for the ioctl |
| 1795 | * @data: data pointer for the ioctl |
| 1796 | * @file_priv: drm file for the ioctl call |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1797 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1798 | * Construct a set of configuration description structures and return |
| 1799 | * them to the user, including CRTC, connector and framebuffer configuration. |
| 1800 | * |
| 1801 | * Called by the user via ioctl. |
| 1802 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1803 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 1804 | * Zero on success, negative errno on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1805 | */ |
| 1806 | int drm_mode_getresources(struct drm_device *dev, void *data, |
| 1807 | struct drm_file *file_priv) |
| 1808 | { |
| 1809 | struct drm_mode_card_res *card_res = data; |
| 1810 | struct list_head *lh; |
| 1811 | struct drm_framebuffer *fb; |
| 1812 | struct drm_connector *connector; |
| 1813 | struct drm_crtc *crtc; |
| 1814 | struct drm_encoder *encoder; |
| 1815 | int ret = 0; |
| 1816 | int connector_count = 0; |
| 1817 | int crtc_count = 0; |
| 1818 | int fb_count = 0; |
| 1819 | int encoder_count = 0; |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1820 | int copied = 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1821 | uint32_t __user *fb_id; |
| 1822 | uint32_t __user *crtc_id; |
| 1823 | uint32_t __user *connector_id; |
| 1824 | uint32_t __user *encoder_id; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1825 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 1826 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 1827 | return -EINVAL; |
| 1828 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1829 | |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 1830 | mutex_lock(&file_priv->fbs_lock); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1831 | /* |
| 1832 | * For the non-control nodes we need to limit the list of resources |
| 1833 | * by IDs in the group list for this node |
| 1834 | */ |
| 1835 | list_for_each(lh, &file_priv->fbs) |
| 1836 | fb_count++; |
| 1837 | |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 1838 | /* handle this in 4 parts */ |
| 1839 | /* FBs */ |
| 1840 | if (card_res->count_fbs >= fb_count) { |
| 1841 | copied = 0; |
| 1842 | fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; |
| 1843 | list_for_each_entry(fb, &file_priv->fbs, filp_head) { |
| 1844 | if (put_user(fb->base.id, fb_id + copied)) { |
| 1845 | mutex_unlock(&file_priv->fbs_lock); |
| 1846 | return -EFAULT; |
| 1847 | } |
| 1848 | copied++; |
| 1849 | } |
| 1850 | } |
| 1851 | card_res->count_fbs = fb_count; |
| 1852 | mutex_unlock(&file_priv->fbs_lock); |
| 1853 | |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 1854 | /* mode_config.mutex protects the connector list against e.g. DP MST |
| 1855 | * connector hot-adding. CRTC/Plane lists are invariant. */ |
| 1856 | mutex_lock(&dev->mode_config.mutex); |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1857 | drm_for_each_crtc(crtc, dev) |
| 1858 | crtc_count++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1859 | |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1860 | drm_for_each_connector(connector, dev) |
| 1861 | connector_count++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1862 | |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1863 | drm_for_each_encoder(encoder, dev) |
| 1864 | encoder_count++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1865 | |
| 1866 | card_res->max_height = dev->mode_config.max_height; |
| 1867 | card_res->min_height = dev->mode_config.min_height; |
| 1868 | card_res->max_width = dev->mode_config.max_width; |
| 1869 | card_res->min_width = dev->mode_config.min_width; |
| 1870 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1871 | /* CRTCs */ |
| 1872 | if (card_res->count_crtcs >= crtc_count) { |
| 1873 | copied = 0; |
| 1874 | crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1875 | drm_for_each_crtc(crtc, dev) { |
Ville Syrjälä | fa3ab4c | 2015-12-08 18:41:53 +0200 | [diff] [blame] | 1876 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", |
| 1877 | crtc->base.id, crtc->name); |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1878 | if (put_user(crtc->base.id, crtc_id + copied)) { |
| 1879 | ret = -EFAULT; |
| 1880 | goto out; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1881 | } |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1882 | copied++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1883 | } |
| 1884 | } |
| 1885 | card_res->count_crtcs = crtc_count; |
| 1886 | |
| 1887 | /* Encoders */ |
| 1888 | if (card_res->count_encoders >= encoder_count) { |
| 1889 | copied = 0; |
| 1890 | encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1891 | drm_for_each_encoder(encoder, dev) { |
| 1892 | DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, |
| 1893 | encoder->name); |
| 1894 | if (put_user(encoder->base.id, encoder_id + |
| 1895 | copied)) { |
| 1896 | ret = -EFAULT; |
| 1897 | goto out; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1898 | } |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1899 | copied++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1900 | } |
| 1901 | } |
| 1902 | card_res->count_encoders = encoder_count; |
| 1903 | |
| 1904 | /* Connectors */ |
| 1905 | if (card_res->count_connectors >= connector_count) { |
| 1906 | copied = 0; |
| 1907 | connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1908 | drm_for_each_connector(connector, dev) { |
| 1909 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
| 1910 | connector->base.id, |
| 1911 | connector->name); |
| 1912 | if (put_user(connector->base.id, |
| 1913 | connector_id + copied)) { |
| 1914 | ret = -EFAULT; |
| 1915 | goto out; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1916 | } |
Daniel Vetter | 9c7060f | 2015-07-09 23:44:36 +0200 | [diff] [blame] | 1917 | copied++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1918 | } |
| 1919 | } |
| 1920 | card_res->count_connectors = connector_count; |
| 1921 | |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 1922 | DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1923 | card_res->count_connectors, card_res->count_encoders); |
| 1924 | |
| 1925 | out: |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 1926 | mutex_unlock(&dev->mode_config.mutex); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1927 | return ret; |
| 1928 | } |
| 1929 | |
| 1930 | /** |
| 1931 | * drm_mode_getcrtc - get CRTC configuration |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 1932 | * @dev: drm device for the ioctl |
| 1933 | * @data: data pointer for the ioctl |
| 1934 | * @file_priv: drm file for the ioctl call |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1935 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1936 | * Construct a CRTC configuration structure to return to the user. |
| 1937 | * |
| 1938 | * Called by the user via ioctl. |
| 1939 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 1940 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 1941 | * Zero on success, negative errno on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1942 | */ |
| 1943 | int drm_mode_getcrtc(struct drm_device *dev, |
| 1944 | void *data, struct drm_file *file_priv) |
| 1945 | { |
| 1946 | struct drm_mode_crtc *crtc_resp = data; |
| 1947 | struct drm_crtc *crtc; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1948 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 1949 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 1950 | return -EINVAL; |
| 1951 | |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 1952 | crtc = drm_crtc_find(dev, crtc_resp->crtc_id); |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 1953 | if (!crtc) |
| 1954 | return -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1955 | |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 1956 | drm_modeset_lock_crtc(crtc, crtc->primary); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1957 | crtc_resp->gamma_size = crtc->gamma_size; |
Matt Roper | f4510a2 | 2014-04-01 15:22:40 -0700 | [diff] [blame] | 1958 | if (crtc->primary->fb) |
| 1959 | crtc_resp->fb_id = crtc->primary->fb->base.id; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1960 | else |
| 1961 | crtc_resp->fb_id = 0; |
| 1962 | |
Daniel Vetter | 31c946e | 2015-02-22 12:24:17 +0100 | [diff] [blame] | 1963 | if (crtc->state) { |
| 1964 | crtc_resp->x = crtc->primary->state->src_x >> 16; |
| 1965 | crtc_resp->y = crtc->primary->state->src_y >> 16; |
| 1966 | if (crtc->state->enable) { |
Daniel Stone | 934a8a8 | 2015-05-22 13:34:48 +0100 | [diff] [blame] | 1967 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->state->mode); |
Daniel Vetter | 31c946e | 2015-02-22 12:24:17 +0100 | [diff] [blame] | 1968 | crtc_resp->mode_valid = 1; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1969 | |
Daniel Vetter | 31c946e | 2015-02-22 12:24:17 +0100 | [diff] [blame] | 1970 | } else { |
| 1971 | crtc_resp->mode_valid = 0; |
| 1972 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1973 | } else { |
Daniel Vetter | 31c946e | 2015-02-22 12:24:17 +0100 | [diff] [blame] | 1974 | crtc_resp->x = crtc->x; |
| 1975 | crtc_resp->y = crtc->y; |
| 1976 | if (crtc->enabled) { |
Daniel Stone | 934a8a8 | 2015-05-22 13:34:48 +0100 | [diff] [blame] | 1977 | drm_mode_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
Daniel Vetter | 31c946e | 2015-02-22 12:24:17 +0100 | [diff] [blame] | 1978 | crtc_resp->mode_valid = 1; |
| 1979 | |
| 1980 | } else { |
| 1981 | crtc_resp->mode_valid = 0; |
| 1982 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1983 | } |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 1984 | drm_modeset_unlock_crtc(crtc); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1985 | |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 1986 | return 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 1987 | } |
| 1988 | |
Damien Lespiau | 61d8e32 | 2013-09-25 16:45:22 +0100 | [diff] [blame] | 1989 | static bool drm_mode_expose_to_userspace(const struct drm_display_mode *mode, |
| 1990 | const struct drm_file *file_priv) |
| 1991 | { |
| 1992 | /* |
| 1993 | * If user-space hasn't configured the driver to expose the stereo 3D |
| 1994 | * modes, don't expose them. |
| 1995 | */ |
| 1996 | if (!file_priv->stereo_allowed && drm_mode_is_stereo(mode)) |
| 1997 | return false; |
| 1998 | |
| 1999 | return true; |
| 2000 | } |
| 2001 | |
Daniel Vetter | abd69c5 | 2014-11-25 23:50:05 +0100 | [diff] [blame] | 2002 | static struct drm_encoder *drm_connector_get_encoder(struct drm_connector *connector) |
| 2003 | { |
| 2004 | /* For atomic drivers only state objects are synchronously updated and |
| 2005 | * protected by modeset locks, so check those first. */ |
| 2006 | if (connector->state) |
| 2007 | return connector->state->best_encoder; |
| 2008 | return connector->encoder; |
| 2009 | } |
| 2010 | |
Rob Clark | 95cbf11 | 2014-12-18 16:01:49 -0500 | [diff] [blame] | 2011 | /* helper for getconnector and getproperties ioctls */ |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 2012 | static int get_properties(struct drm_mode_object *obj, bool atomic, |
Rob Clark | 95cbf11 | 2014-12-18 16:01:49 -0500 | [diff] [blame] | 2013 | uint32_t __user *prop_ptr, uint64_t __user *prop_values, |
| 2014 | uint32_t *arg_count_props) |
| 2015 | { |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 2016 | int props_count; |
| 2017 | int i, ret, copied; |
| 2018 | |
| 2019 | props_count = obj->properties->count; |
| 2020 | if (!atomic) |
| 2021 | props_count -= obj->properties->atomic_count; |
Rob Clark | 95cbf11 | 2014-12-18 16:01:49 -0500 | [diff] [blame] | 2022 | |
| 2023 | if ((*arg_count_props >= props_count) && props_count) { |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 2024 | for (i = 0, copied = 0; copied < props_count; i++) { |
Rob Clark | 95cbf11 | 2014-12-18 16:01:49 -0500 | [diff] [blame] | 2025 | struct drm_property *prop = obj->properties->properties[i]; |
| 2026 | uint64_t val; |
| 2027 | |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 2028 | if ((prop->flags & DRM_MODE_PROP_ATOMIC) && !atomic) |
| 2029 | continue; |
| 2030 | |
Rob Clark | 95cbf11 | 2014-12-18 16:01:49 -0500 | [diff] [blame] | 2031 | ret = drm_object_property_get_value(obj, prop, &val); |
| 2032 | if (ret) |
| 2033 | return ret; |
| 2034 | |
| 2035 | if (put_user(prop->base.id, prop_ptr + copied)) |
| 2036 | return -EFAULT; |
| 2037 | |
| 2038 | if (put_user(val, prop_values + copied)) |
| 2039 | return -EFAULT; |
| 2040 | |
| 2041 | copied++; |
| 2042 | } |
| 2043 | } |
| 2044 | *arg_count_props = props_count; |
| 2045 | |
| 2046 | return 0; |
| 2047 | } |
| 2048 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2049 | /** |
| 2050 | * drm_mode_getconnector - get connector configuration |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 2051 | * @dev: drm device for the ioctl |
| 2052 | * @data: data pointer for the ioctl |
| 2053 | * @file_priv: drm file for the ioctl call |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2054 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2055 | * Construct a connector configuration structure to return to the user. |
| 2056 | * |
| 2057 | * Called by the user via ioctl. |
| 2058 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2059 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 2060 | * Zero on success, negative errno on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2061 | */ |
| 2062 | int drm_mode_getconnector(struct drm_device *dev, void *data, |
| 2063 | struct drm_file *file_priv) |
| 2064 | { |
| 2065 | struct drm_mode_get_connector *out_resp = data; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2066 | struct drm_connector *connector; |
Daniel Vetter | abd69c5 | 2014-11-25 23:50:05 +0100 | [diff] [blame] | 2067 | struct drm_encoder *encoder; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2068 | struct drm_display_mode *mode; |
| 2069 | int mode_count = 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2070 | int encoders_count = 0; |
| 2071 | int ret = 0; |
| 2072 | int copied = 0; |
| 2073 | int i; |
| 2074 | struct drm_mode_modeinfo u_mode; |
| 2075 | struct drm_mode_modeinfo __user *mode_ptr; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2076 | uint32_t __user *encoder_ptr; |
| 2077 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 2078 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 2079 | return -EINVAL; |
| 2080 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2081 | memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
| 2082 | |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 2083 | DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2084 | |
Daniel Vetter | 7b24056 | 2012-12-12 00:35:33 +0100 | [diff] [blame] | 2085 | mutex_lock(&dev->mode_config.mutex); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2086 | |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 2087 | connector = drm_connector_find(dev, out_resp->connector_id); |
| 2088 | if (!connector) { |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 2089 | ret = -ENOENT; |
Tommi Rantala | 04bdf44 | 2015-04-03 10:45:29 +0300 | [diff] [blame] | 2090 | goto out_unlock; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2091 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2092 | |
Thierry Reding | 01073b0 | 2014-12-10 13:03:38 +0100 | [diff] [blame] | 2093 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) |
| 2094 | if (connector->encoder_ids[i] != 0) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2095 | encoders_count++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2096 | |
| 2097 | if (out_resp->count_modes == 0) { |
| 2098 | connector->funcs->fill_modes(connector, |
| 2099 | dev->mode_config.max_width, |
| 2100 | dev->mode_config.max_height); |
| 2101 | } |
| 2102 | |
| 2103 | /* delayed so we get modes regardless of pre-fill_modes state */ |
| 2104 | list_for_each_entry(mode, &connector->modes, head) |
Damien Lespiau | 61d8e32 | 2013-09-25 16:45:22 +0100 | [diff] [blame] | 2105 | if (drm_mode_expose_to_userspace(mode, file_priv)) |
| 2106 | mode_count++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2107 | |
| 2108 | out_resp->connector_id = connector->base.id; |
| 2109 | out_resp->connector_type = connector->connector_type; |
| 2110 | out_resp->connector_type_id = connector->connector_type_id; |
| 2111 | out_resp->mm_width = connector->display_info.width_mm; |
| 2112 | out_resp->mm_height = connector->display_info.height_mm; |
| 2113 | out_resp->subpixel = connector->display_info.subpixel_order; |
| 2114 | out_resp->connection = connector->status; |
Daniel Vetter | 2caa80e | 2015-02-22 11:38:36 +0100 | [diff] [blame] | 2115 | |
| 2116 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
Daniel Vetter | abd69c5 | 2014-11-25 23:50:05 +0100 | [diff] [blame] | 2117 | encoder = drm_connector_get_encoder(connector); |
| 2118 | if (encoder) |
| 2119 | out_resp->encoder_id = encoder->base.id; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2120 | else |
| 2121 | out_resp->encoder_id = 0; |
| 2122 | |
| 2123 | /* |
| 2124 | * This ioctl is called twice, once to determine how much space is |
| 2125 | * needed, and the 2nd time to fill it. |
| 2126 | */ |
| 2127 | if ((out_resp->count_modes >= mode_count) && mode_count) { |
| 2128 | copied = 0; |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 2129 | mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2130 | list_for_each_entry(mode, &connector->modes, head) { |
Damien Lespiau | 61d8e32 | 2013-09-25 16:45:22 +0100 | [diff] [blame] | 2131 | if (!drm_mode_expose_to_userspace(mode, file_priv)) |
| 2132 | continue; |
| 2133 | |
Daniel Stone | 934a8a8 | 2015-05-22 13:34:48 +0100 | [diff] [blame] | 2134 | drm_mode_convert_to_umode(&u_mode, mode); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2135 | if (copy_to_user(mode_ptr + copied, |
| 2136 | &u_mode, sizeof(u_mode))) { |
| 2137 | ret = -EFAULT; |
| 2138 | goto out; |
| 2139 | } |
| 2140 | copied++; |
| 2141 | } |
| 2142 | } |
| 2143 | out_resp->count_modes = mode_count; |
| 2144 | |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 2145 | ret = get_properties(&connector->base, file_priv->atomic, |
Rob Clark | 95cbf11 | 2014-12-18 16:01:49 -0500 | [diff] [blame] | 2146 | (uint32_t __user *)(unsigned long)(out_resp->props_ptr), |
| 2147 | (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr), |
| 2148 | &out_resp->count_props); |
| 2149 | if (ret) |
| 2150 | goto out; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2151 | |
| 2152 | if ((out_resp->count_encoders >= encoders_count) && encoders_count) { |
| 2153 | copied = 0; |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 2154 | encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2155 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
| 2156 | if (connector->encoder_ids[i] != 0) { |
| 2157 | if (put_user(connector->encoder_ids[i], |
| 2158 | encoder_ptr + copied)) { |
| 2159 | ret = -EFAULT; |
| 2160 | goto out; |
| 2161 | } |
| 2162 | copied++; |
| 2163 | } |
| 2164 | } |
| 2165 | } |
| 2166 | out_resp->count_encoders = encoders_count; |
| 2167 | |
| 2168 | out: |
Rob Clark | ccfc086 | 2014-12-18 16:01:48 -0500 | [diff] [blame] | 2169 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
Tommi Rantala | 04bdf44 | 2015-04-03 10:45:29 +0300 | [diff] [blame] | 2170 | |
| 2171 | out_unlock: |
Daniel Vetter | 7b24056 | 2012-12-12 00:35:33 +0100 | [diff] [blame] | 2172 | mutex_unlock(&dev->mode_config.mutex); |
| 2173 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2174 | return ret; |
| 2175 | } |
| 2176 | |
Daniel Vetter | abd69c5 | 2014-11-25 23:50:05 +0100 | [diff] [blame] | 2177 | static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder) |
| 2178 | { |
| 2179 | struct drm_connector *connector; |
| 2180 | struct drm_device *dev = encoder->dev; |
| 2181 | bool uses_atomic = false; |
| 2182 | |
| 2183 | /* For atomic drivers only state objects are synchronously updated and |
| 2184 | * protected by modeset locks, so check those first. */ |
Daniel Vetter | 6295d60 | 2015-07-09 23:44:25 +0200 | [diff] [blame] | 2185 | drm_for_each_connector(connector, dev) { |
Daniel Vetter | abd69c5 | 2014-11-25 23:50:05 +0100 | [diff] [blame] | 2186 | if (!connector->state) |
| 2187 | continue; |
| 2188 | |
| 2189 | uses_atomic = true; |
| 2190 | |
| 2191 | if (connector->state->best_encoder != encoder) |
| 2192 | continue; |
| 2193 | |
| 2194 | return connector->state->crtc; |
| 2195 | } |
| 2196 | |
| 2197 | /* Don't return stale data (e.g. pending async disable). */ |
| 2198 | if (uses_atomic) |
| 2199 | return NULL; |
| 2200 | |
| 2201 | return encoder->crtc; |
| 2202 | } |
| 2203 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2204 | /** |
| 2205 | * drm_mode_getencoder - get encoder configuration |
| 2206 | * @dev: drm device for the ioctl |
| 2207 | * @data: data pointer for the ioctl |
| 2208 | * @file_priv: drm file for the ioctl call |
| 2209 | * |
| 2210 | * Construct a encoder configuration structure to return to the user. |
| 2211 | * |
| 2212 | * Called by the user via ioctl. |
| 2213 | * |
| 2214 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 2215 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2216 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2217 | int drm_mode_getencoder(struct drm_device *dev, void *data, |
| 2218 | struct drm_file *file_priv) |
| 2219 | { |
| 2220 | struct drm_mode_get_encoder *enc_resp = data; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2221 | struct drm_encoder *encoder; |
Daniel Vetter | abd69c5 | 2014-11-25 23:50:05 +0100 | [diff] [blame] | 2222 | struct drm_crtc *crtc; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2223 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 2224 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 2225 | return -EINVAL; |
| 2226 | |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 2227 | encoder = drm_encoder_find(dev, enc_resp->encoder_id); |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2228 | if (!encoder) |
| 2229 | return -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2230 | |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2231 | drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); |
Daniel Vetter | abd69c5 | 2014-11-25 23:50:05 +0100 | [diff] [blame] | 2232 | crtc = drm_encoder_get_crtc(encoder); |
| 2233 | if (crtc) |
| 2234 | enc_resp->crtc_id = crtc->base.id; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2235 | else |
| 2236 | enc_resp->crtc_id = 0; |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2237 | drm_modeset_unlock(&dev->mode_config.connection_mutex); |
| 2238 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2239 | enc_resp->encoder_type = encoder->encoder_type; |
| 2240 | enc_resp->encoder_id = encoder->base.id; |
| 2241 | enc_resp->possible_crtcs = encoder->possible_crtcs; |
| 2242 | enc_resp->possible_clones = encoder->possible_clones; |
| 2243 | |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 2244 | return 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2245 | } |
| 2246 | |
| 2247 | /** |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2248 | * drm_mode_getplane_res - enumerate all plane resources |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2249 | * @dev: DRM device |
| 2250 | * @data: ioctl data |
| 2251 | * @file_priv: DRM file info |
| 2252 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2253 | * Construct a list of plane ids to return to the user. |
| 2254 | * |
| 2255 | * Called by the user via ioctl. |
| 2256 | * |
| 2257 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 2258 | * Zero on success, negative errno on failure. |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2259 | */ |
| 2260 | int drm_mode_getplane_res(struct drm_device *dev, void *data, |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2261 | struct drm_file *file_priv) |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2262 | { |
| 2263 | struct drm_mode_get_plane_res *plane_resp = data; |
| 2264 | struct drm_mode_config *config; |
| 2265 | struct drm_plane *plane; |
| 2266 | uint32_t __user *plane_ptr; |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2267 | int copied = 0; |
Matt Roper | 681e7ec | 2014-04-01 15:22:42 -0700 | [diff] [blame] | 2268 | unsigned num_planes; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2269 | |
| 2270 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 2271 | return -EINVAL; |
| 2272 | |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2273 | config = &dev->mode_config; |
| 2274 | |
Matt Roper | 681e7ec | 2014-04-01 15:22:42 -0700 | [diff] [blame] | 2275 | if (file_priv->universal_planes) |
| 2276 | num_planes = config->num_total_plane; |
| 2277 | else |
| 2278 | num_planes = config->num_overlay_plane; |
| 2279 | |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2280 | /* |
| 2281 | * This ioctl is called twice, once to determine how much space is |
| 2282 | * needed, and the 2nd time to fill it. |
| 2283 | */ |
Matt Roper | 681e7ec | 2014-04-01 15:22:42 -0700 | [diff] [blame] | 2284 | if (num_planes && |
| 2285 | (plane_resp->count_planes >= num_planes)) { |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 2286 | plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2287 | |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2288 | /* Plane lists are invariant, no locking needed. */ |
Daniel Vetter | e4f6254 | 2015-07-09 23:44:35 +0200 | [diff] [blame] | 2289 | drm_for_each_plane(plane, dev) { |
Matt Roper | 681e7ec | 2014-04-01 15:22:42 -0700 | [diff] [blame] | 2290 | /* |
| 2291 | * Unless userspace set the 'universal planes' |
| 2292 | * capability bit, only advertise overlays. |
| 2293 | */ |
| 2294 | if (plane->type != DRM_PLANE_TYPE_OVERLAY && |
| 2295 | !file_priv->universal_planes) |
Matt Roper | e27dde3 | 2014-04-01 15:22:30 -0700 | [diff] [blame] | 2296 | continue; |
| 2297 | |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2298 | if (put_user(plane->base.id, plane_ptr + copied)) |
| 2299 | return -EFAULT; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2300 | copied++; |
| 2301 | } |
| 2302 | } |
Matt Roper | 681e7ec | 2014-04-01 15:22:42 -0700 | [diff] [blame] | 2303 | plane_resp->count_planes = num_planes; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2304 | |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2305 | return 0; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2306 | } |
| 2307 | |
| 2308 | /** |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2309 | * drm_mode_getplane - get plane configuration |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2310 | * @dev: DRM device |
| 2311 | * @data: ioctl data |
| 2312 | * @file_priv: DRM file info |
| 2313 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2314 | * Construct a plane configuration structure to return to the user. |
| 2315 | * |
| 2316 | * Called by the user via ioctl. |
| 2317 | * |
| 2318 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 2319 | * Zero on success, negative errno on failure. |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2320 | */ |
| 2321 | int drm_mode_getplane(struct drm_device *dev, void *data, |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2322 | struct drm_file *file_priv) |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2323 | { |
| 2324 | struct drm_mode_get_plane *plane_resp = data; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2325 | struct drm_plane *plane; |
| 2326 | uint32_t __user *format_ptr; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2327 | |
| 2328 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 2329 | return -EINVAL; |
| 2330 | |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 2331 | plane = drm_plane_find(dev, plane_resp->plane_id); |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2332 | if (!plane) |
| 2333 | return -ENOENT; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2334 | |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2335 | drm_modeset_lock(&plane->mutex, NULL); |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2336 | if (plane->crtc) |
| 2337 | plane_resp->crtc_id = plane->crtc->base.id; |
| 2338 | else |
| 2339 | plane_resp->crtc_id = 0; |
| 2340 | |
| 2341 | if (plane->fb) |
| 2342 | plane_resp->fb_id = plane->fb->base.id; |
| 2343 | else |
| 2344 | plane_resp->fb_id = 0; |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2345 | drm_modeset_unlock(&plane->mutex); |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2346 | |
| 2347 | plane_resp->plane_id = plane->base.id; |
| 2348 | plane_resp->possible_crtcs = plane->possible_crtcs; |
Ville Syrjälä | 778ad90 | 2013-06-03 16:11:42 +0300 | [diff] [blame] | 2349 | plane_resp->gamma_size = 0; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2350 | |
| 2351 | /* |
| 2352 | * This ioctl is called twice, once to determine how much space is |
| 2353 | * needed, and the 2nd time to fill it. |
| 2354 | */ |
| 2355 | if (plane->format_count && |
| 2356 | (plane_resp->count_format_types >= plane->format_count)) { |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 2357 | format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2358 | if (copy_to_user(format_ptr, |
| 2359 | plane->format_types, |
| 2360 | sizeof(uint32_t) * plane->format_count)) { |
Daniel Vetter | fcf93f6 | 2014-11-12 08:45:01 +0100 | [diff] [blame] | 2361 | return -EFAULT; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2362 | } |
| 2363 | } |
| 2364 | plane_resp->count_format_types = plane->format_count; |
| 2365 | |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 2366 | return 0; |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2367 | } |
| 2368 | |
Laurent Pinchart | ead8610 | 2015-03-05 02:25:43 +0200 | [diff] [blame] | 2369 | /** |
| 2370 | * drm_plane_check_pixel_format - Check if the plane supports the pixel format |
| 2371 | * @plane: plane to check for format support |
| 2372 | * @format: the pixel format |
| 2373 | * |
| 2374 | * Returns: |
| 2375 | * Zero of @plane has @format in its list of supported pixel formats, -EINVAL |
| 2376 | * otherwise. |
| 2377 | */ |
| 2378 | int drm_plane_check_pixel_format(const struct drm_plane *plane, u32 format) |
| 2379 | { |
| 2380 | unsigned int i; |
| 2381 | |
| 2382 | for (i = 0; i < plane->format_count; i++) { |
| 2383 | if (format == plane->format_types[i]) |
| 2384 | return 0; |
| 2385 | } |
| 2386 | |
| 2387 | return -EINVAL; |
| 2388 | } |
| 2389 | |
Ville Syrjälä | ce8d9ec | 2015-10-15 20:40:00 +0300 | [diff] [blame] | 2390 | static int check_src_coords(uint32_t src_x, uint32_t src_y, |
| 2391 | uint32_t src_w, uint32_t src_h, |
| 2392 | const struct drm_framebuffer *fb) |
| 2393 | { |
| 2394 | unsigned int fb_width, fb_height; |
| 2395 | |
| 2396 | fb_width = fb->width << 16; |
| 2397 | fb_height = fb->height << 16; |
| 2398 | |
| 2399 | /* Make sure source coordinates are inside the fb. */ |
| 2400 | if (src_w > fb_width || |
| 2401 | src_x > fb_width - src_w || |
| 2402 | src_h > fb_height || |
| 2403 | src_y > fb_height - src_h) { |
| 2404 | DRM_DEBUG_KMS("Invalid source coordinates " |
| 2405 | "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", |
| 2406 | src_w >> 16, ((src_w & 0xffff) * 15625) >> 10, |
| 2407 | src_h >> 16, ((src_h & 0xffff) * 15625) >> 10, |
| 2408 | src_x >> 16, ((src_x & 0xffff) * 15625) >> 10, |
| 2409 | src_y >> 16, ((src_y & 0xffff) * 15625) >> 10); |
| 2410 | return -ENOSPC; |
| 2411 | } |
| 2412 | |
| 2413 | return 0; |
| 2414 | } |
| 2415 | |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2416 | /* |
| 2417 | * setplane_internal - setplane handler for internal callers |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2418 | * |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2419 | * Note that we assume an extra reference has already been taken on fb. If the |
| 2420 | * update fails, this reference will be dropped before return; if it succeeds, |
| 2421 | * the previous framebuffer (if any) will be unreferenced instead. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2422 | * |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2423 | * src_{x,y,w,h} are provided in 16.16 fixed point format |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2424 | */ |
Daniel Vetter | f2b50c1 | 2014-09-12 17:07:32 +0200 | [diff] [blame] | 2425 | static int __setplane_internal(struct drm_plane *plane, |
| 2426 | struct drm_crtc *crtc, |
| 2427 | struct drm_framebuffer *fb, |
| 2428 | int32_t crtc_x, int32_t crtc_y, |
| 2429 | uint32_t crtc_w, uint32_t crtc_h, |
| 2430 | /* src_{x,y,w,h} values are 16.16 fixed point */ |
| 2431 | uint32_t src_x, uint32_t src_y, |
| 2432 | uint32_t src_w, uint32_t src_h) |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2433 | { |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2434 | int ret = 0; |
| 2435 | |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2436 | /* No fb means shut it down */ |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2437 | if (!fb) { |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 2438 | plane->old_fb = plane->fb; |
Daniel Vetter | 731cce4 | 2014-04-23 10:24:11 +0200 | [diff] [blame] | 2439 | ret = plane->funcs->disable_plane(plane); |
| 2440 | if (!ret) { |
| 2441 | plane->crtc = NULL; |
| 2442 | plane->fb = NULL; |
| 2443 | } else { |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 2444 | plane->old_fb = NULL; |
Daniel Vetter | 731cce4 | 2014-04-23 10:24:11 +0200 | [diff] [blame] | 2445 | } |
Jesse Barnes | 8cf5c91 | 2011-11-14 14:51:27 -0800 | [diff] [blame] | 2446 | goto out; |
| 2447 | } |
| 2448 | |
Matt Roper | 7f994f3 | 2014-05-29 08:06:51 -0700 | [diff] [blame] | 2449 | /* Check whether this plane is usable on this CRTC */ |
| 2450 | if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) { |
| 2451 | DRM_DEBUG_KMS("Invalid crtc for plane\n"); |
| 2452 | ret = -EINVAL; |
| 2453 | goto out; |
| 2454 | } |
| 2455 | |
Ville Syrjälä | 62443be | 2011-12-20 00:06:47 +0200 | [diff] [blame] | 2456 | /* Check whether this plane supports the fb pixel format. */ |
Laurent Pinchart | ead8610 | 2015-03-05 02:25:43 +0200 | [diff] [blame] | 2457 | ret = drm_plane_check_pixel_format(plane, fb->pixel_format); |
| 2458 | if (ret) { |
Ville Syrjälä | 6ba6d03 | 2013-06-10 11:15:10 +0300 | [diff] [blame] | 2459 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
| 2460 | drm_get_format_name(fb->pixel_format)); |
Ville Syrjälä | 62443be | 2011-12-20 00:06:47 +0200 | [diff] [blame] | 2461 | goto out; |
| 2462 | } |
| 2463 | |
Matt Roper | 3968be9 | 2015-04-13 11:06:13 -0700 | [diff] [blame] | 2464 | /* Give drivers some help against integer overflows */ |
| 2465 | if (crtc_w > INT_MAX || |
| 2466 | crtc_x > INT_MAX - (int32_t) crtc_w || |
| 2467 | crtc_h > INT_MAX || |
| 2468 | crtc_y > INT_MAX - (int32_t) crtc_h) { |
| 2469 | DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", |
| 2470 | crtc_w, crtc_h, crtc_x, crtc_y); |
Ville Syrjälä | c390eed | 2015-10-15 20:39:58 +0300 | [diff] [blame] | 2471 | ret = -ERANGE; |
Ville Syrjälä | 42ef878 | 2011-12-20 00:06:44 +0200 | [diff] [blame] | 2472 | goto out; |
| 2473 | } |
| 2474 | |
Ville Syrjälä | ce8d9ec | 2015-10-15 20:40:00 +0300 | [diff] [blame] | 2475 | ret = check_src_coords(src_x, src_y, src_w, src_h, fb); |
| 2476 | if (ret) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2477 | goto out; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2478 | |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 2479 | plane->old_fb = plane->fb; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2480 | ret = plane->funcs->update_plane(plane, crtc, fb, |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2481 | crtc_x, crtc_y, crtc_w, crtc_h, |
| 2482 | src_x, src_y, src_w, src_h); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2483 | if (!ret) { |
| 2484 | plane->crtc = crtc; |
| 2485 | plane->fb = fb; |
Daniel Vetter | 35f8bad | 2013-02-15 21:21:37 +0100 | [diff] [blame] | 2486 | fb = NULL; |
Daniel Vetter | 0fe27f0 | 2014-04-23 17:34:06 +0200 | [diff] [blame] | 2487 | } else { |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 2488 | plane->old_fb = NULL; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2489 | } |
| 2490 | |
| 2491 | out: |
Daniel Vetter | 6c2a753 | 2012-12-11 00:59:24 +0100 | [diff] [blame] | 2492 | if (fb) |
| 2493 | drm_framebuffer_unreference(fb); |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 2494 | if (plane->old_fb) |
| 2495 | drm_framebuffer_unreference(plane->old_fb); |
| 2496 | plane->old_fb = NULL; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2497 | |
| 2498 | return ret; |
Daniel Vetter | f2b50c1 | 2014-09-12 17:07:32 +0200 | [diff] [blame] | 2499 | } |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2500 | |
Daniel Vetter | f2b50c1 | 2014-09-12 17:07:32 +0200 | [diff] [blame] | 2501 | static int setplane_internal(struct drm_plane *plane, |
| 2502 | struct drm_crtc *crtc, |
| 2503 | struct drm_framebuffer *fb, |
| 2504 | int32_t crtc_x, int32_t crtc_y, |
| 2505 | uint32_t crtc_w, uint32_t crtc_h, |
| 2506 | /* src_{x,y,w,h} values are 16.16 fixed point */ |
| 2507 | uint32_t src_x, uint32_t src_y, |
| 2508 | uint32_t src_w, uint32_t src_h) |
| 2509 | { |
| 2510 | int ret; |
| 2511 | |
| 2512 | drm_modeset_lock_all(plane->dev); |
| 2513 | ret = __setplane_internal(plane, crtc, fb, |
| 2514 | crtc_x, crtc_y, crtc_w, crtc_h, |
| 2515 | src_x, src_y, src_w, src_h); |
| 2516 | drm_modeset_unlock_all(plane->dev); |
| 2517 | |
| 2518 | return ret; |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2519 | } |
| 2520 | |
| 2521 | /** |
| 2522 | * drm_mode_setplane - configure a plane's configuration |
| 2523 | * @dev: DRM device |
| 2524 | * @data: ioctl data* |
| 2525 | * @file_priv: DRM file info |
| 2526 | * |
| 2527 | * Set plane configuration, including placement, fb, scaling, and other factors. |
| 2528 | * Or pass a NULL fb to disable (planes may be disabled without providing a |
| 2529 | * valid crtc). |
| 2530 | * |
| 2531 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 2532 | * Zero on success, negative errno on failure. |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2533 | */ |
| 2534 | int drm_mode_setplane(struct drm_device *dev, void *data, |
| 2535 | struct drm_file *file_priv) |
| 2536 | { |
| 2537 | struct drm_mode_set_plane *plane_req = data; |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2538 | struct drm_plane *plane; |
| 2539 | struct drm_crtc *crtc = NULL; |
| 2540 | struct drm_framebuffer *fb = NULL; |
| 2541 | |
| 2542 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 2543 | return -EINVAL; |
| 2544 | |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2545 | /* |
| 2546 | * First, find the plane, crtc, and fb objects. If not available, |
| 2547 | * we don't bother to call the driver. |
| 2548 | */ |
Rob Clark | 933f622 | 2014-11-25 20:33:11 -0500 | [diff] [blame] | 2549 | plane = drm_plane_find(dev, plane_req->plane_id); |
| 2550 | if (!plane) { |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2551 | DRM_DEBUG_KMS("Unknown plane ID %d\n", |
| 2552 | plane_req->plane_id); |
| 2553 | return -ENOENT; |
| 2554 | } |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2555 | |
| 2556 | if (plane_req->fb_id) { |
| 2557 | fb = drm_framebuffer_lookup(dev, plane_req->fb_id); |
| 2558 | if (!fb) { |
| 2559 | DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", |
| 2560 | plane_req->fb_id); |
| 2561 | return -ENOENT; |
| 2562 | } |
| 2563 | |
Rob Clark | 933f622 | 2014-11-25 20:33:11 -0500 | [diff] [blame] | 2564 | crtc = drm_crtc_find(dev, plane_req->crtc_id); |
| 2565 | if (!crtc) { |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2566 | DRM_DEBUG_KMS("Unknown crtc ID %d\n", |
| 2567 | plane_req->crtc_id); |
| 2568 | return -ENOENT; |
| 2569 | } |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2570 | } |
| 2571 | |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2572 | /* |
| 2573 | * setplane_internal will take care of deref'ing either the old or new |
| 2574 | * framebuffer depending on success. |
| 2575 | */ |
Chris Wilson | 17cfd91 | 2014-06-13 15:22:28 +0100 | [diff] [blame] | 2576 | return setplane_internal(plane, crtc, fb, |
Matt Roper | b36552b | 2014-06-10 08:28:09 -0700 | [diff] [blame] | 2577 | plane_req->crtc_x, plane_req->crtc_y, |
| 2578 | plane_req->crtc_w, plane_req->crtc_h, |
| 2579 | plane_req->src_x, plane_req->src_y, |
| 2580 | plane_req->src_w, plane_req->src_h); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2581 | } |
| 2582 | |
| 2583 | /** |
Daniel Vetter | 2d13b67 | 2012-12-11 13:47:23 +0100 | [diff] [blame] | 2584 | * drm_mode_set_config_internal - helper to call ->set_config |
| 2585 | * @set: modeset config to set |
| 2586 | * |
| 2587 | * This is a little helper to wrap internal calls to the ->set_config driver |
| 2588 | * interface. The only thing it adds is correct refcounting dance. |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 2589 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2590 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 2591 | * Zero on success, negative errno on failure. |
Daniel Vetter | 2d13b67 | 2012-12-11 13:47:23 +0100 | [diff] [blame] | 2592 | */ |
| 2593 | int drm_mode_set_config_internal(struct drm_mode_set *set) |
| 2594 | { |
| 2595 | struct drm_crtc *crtc = set->crtc; |
Daniel Vetter | 5cef29a | 2013-06-15 00:13:16 +0200 | [diff] [blame] | 2596 | struct drm_framebuffer *fb; |
| 2597 | struct drm_crtc *tmp; |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 2598 | int ret; |
Daniel Vetter | 2d13b67 | 2012-12-11 13:47:23 +0100 | [diff] [blame] | 2599 | |
Daniel Vetter | 5cef29a | 2013-06-15 00:13:16 +0200 | [diff] [blame] | 2600 | /* |
| 2601 | * NOTE: ->set_config can also disable other crtcs (if we steal all |
| 2602 | * connectors from it), hence we need to refcount the fbs across all |
| 2603 | * crtcs. Atomic modeset will have saner semantics ... |
| 2604 | */ |
Daniel Vetter | e4f6254 | 2015-07-09 23:44:35 +0200 | [diff] [blame] | 2605 | drm_for_each_crtc(tmp, crtc->dev) |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 2606 | tmp->primary->old_fb = tmp->primary->fb; |
Daniel Vetter | 5cef29a | 2013-06-15 00:13:16 +0200 | [diff] [blame] | 2607 | |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 2608 | fb = set->fb; |
| 2609 | |
| 2610 | ret = crtc->funcs->set_config(set); |
| 2611 | if (ret == 0) { |
Matt Roper | e13161a | 2014-04-01 15:22:38 -0700 | [diff] [blame] | 2612 | crtc->primary->crtc = crtc; |
Daniel Vetter | 0fe27f0 | 2014-04-23 17:34:06 +0200 | [diff] [blame] | 2613 | crtc->primary->fb = fb; |
Daniel Vetter | 5cef29a | 2013-06-15 00:13:16 +0200 | [diff] [blame] | 2614 | } |
Daniel Vetter | cc85e12 | 2013-06-15 00:13:15 +0200 | [diff] [blame] | 2615 | |
Daniel Vetter | e4f6254 | 2015-07-09 23:44:35 +0200 | [diff] [blame] | 2616 | drm_for_each_crtc(tmp, crtc->dev) { |
Matt Roper | f4510a2 | 2014-04-01 15:22:40 -0700 | [diff] [blame] | 2617 | if (tmp->primary->fb) |
| 2618 | drm_framebuffer_reference(tmp->primary->fb); |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 2619 | if (tmp->primary->old_fb) |
| 2620 | drm_framebuffer_unreference(tmp->primary->old_fb); |
| 2621 | tmp->primary->old_fb = NULL; |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 2622 | } |
| 2623 | |
| 2624 | return ret; |
Daniel Vetter | 2d13b67 | 2012-12-11 13:47:23 +0100 | [diff] [blame] | 2625 | } |
| 2626 | EXPORT_SYMBOL(drm_mode_set_config_internal); |
| 2627 | |
Matt Roper | af93629 | 2014-04-01 15:22:34 -0700 | [diff] [blame] | 2628 | /** |
Gustavo Padovan | ecb7e16 | 2014-12-01 15:40:09 -0800 | [diff] [blame] | 2629 | * drm_crtc_get_hv_timing - Fetches hdisplay/vdisplay for given mode |
| 2630 | * @mode: mode to query |
| 2631 | * @hdisplay: hdisplay value to fill in |
| 2632 | * @vdisplay: vdisplay value to fill in |
| 2633 | * |
| 2634 | * The vdisplay value will be doubled if the specified mode is a stereo mode of |
| 2635 | * the appropriate layout. |
| 2636 | */ |
| 2637 | void drm_crtc_get_hv_timing(const struct drm_display_mode *mode, |
| 2638 | int *hdisplay, int *vdisplay) |
| 2639 | { |
| 2640 | struct drm_display_mode adjusted; |
| 2641 | |
| 2642 | drm_mode_copy(&adjusted, mode); |
| 2643 | drm_mode_set_crtcinfo(&adjusted, CRTC_STEREO_DOUBLE_ONLY); |
| 2644 | *hdisplay = adjusted.crtc_hdisplay; |
| 2645 | *vdisplay = adjusted.crtc_vdisplay; |
| 2646 | } |
| 2647 | EXPORT_SYMBOL(drm_crtc_get_hv_timing); |
| 2648 | |
| 2649 | /** |
Matt Roper | af93629 | 2014-04-01 15:22:34 -0700 | [diff] [blame] | 2650 | * drm_crtc_check_viewport - Checks that a framebuffer is big enough for the |
| 2651 | * CRTC viewport |
| 2652 | * @crtc: CRTC that framebuffer will be displayed on |
| 2653 | * @x: x panning |
| 2654 | * @y: y panning |
| 2655 | * @mode: mode that framebuffer will be displayed under |
| 2656 | * @fb: framebuffer to check size of |
Damien Lespiau | c11e928 | 2013-09-25 16:45:30 +0100 | [diff] [blame] | 2657 | */ |
Matt Roper | af93629 | 2014-04-01 15:22:34 -0700 | [diff] [blame] | 2658 | int drm_crtc_check_viewport(const struct drm_crtc *crtc, |
| 2659 | int x, int y, |
| 2660 | const struct drm_display_mode *mode, |
| 2661 | const struct drm_framebuffer *fb) |
Damien Lespiau | c11e928 | 2013-09-25 16:45:30 +0100 | [diff] [blame] | 2662 | |
| 2663 | { |
| 2664 | int hdisplay, vdisplay; |
| 2665 | |
Gustavo Padovan | ecb7e16 | 2014-12-01 15:40:09 -0800 | [diff] [blame] | 2666 | drm_crtc_get_hv_timing(mode, &hdisplay, &vdisplay); |
Damien Lespiau | a0c1bbb | 2013-09-25 16:45:31 +0100 | [diff] [blame] | 2667 | |
Ville Syrjälä | 33e0be6 | 2015-10-16 18:38:39 +0300 | [diff] [blame] | 2668 | if (crtc->state && |
| 2669 | crtc->primary->state->rotation & (BIT(DRM_ROTATE_90) | |
| 2670 | BIT(DRM_ROTATE_270))) |
Damien Lespiau | c11e928 | 2013-09-25 16:45:30 +0100 | [diff] [blame] | 2671 | swap(hdisplay, vdisplay); |
| 2672 | |
Ville Syrjälä | ce8d9ec | 2015-10-15 20:40:00 +0300 | [diff] [blame] | 2673 | return check_src_coords(x << 16, y << 16, |
| 2674 | hdisplay << 16, vdisplay << 16, fb); |
Damien Lespiau | c11e928 | 2013-09-25 16:45:30 +0100 | [diff] [blame] | 2675 | } |
Matt Roper | af93629 | 2014-04-01 15:22:34 -0700 | [diff] [blame] | 2676 | EXPORT_SYMBOL(drm_crtc_check_viewport); |
Damien Lespiau | c11e928 | 2013-09-25 16:45:30 +0100 | [diff] [blame] | 2677 | |
Daniel Vetter | 2d13b67 | 2012-12-11 13:47:23 +0100 | [diff] [blame] | 2678 | /** |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2679 | * drm_mode_setcrtc - set CRTC configuration |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 2680 | * @dev: drm device for the ioctl |
| 2681 | * @data: data pointer for the ioctl |
| 2682 | * @file_priv: drm file for the ioctl call |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2683 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2684 | * Build a new CRTC configuration based on user request. |
| 2685 | * |
| 2686 | * Called by the user via ioctl. |
| 2687 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 2688 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 2689 | * Zero on success, negative errno on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2690 | */ |
| 2691 | int drm_mode_setcrtc(struct drm_device *dev, void *data, |
| 2692 | struct drm_file *file_priv) |
| 2693 | { |
| 2694 | struct drm_mode_config *config = &dev->mode_config; |
| 2695 | struct drm_mode_crtc *crtc_req = data; |
Ville Syrjälä | 6653cc8 | 2012-03-13 12:35:38 +0200 | [diff] [blame] | 2696 | struct drm_crtc *crtc; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2697 | struct drm_connector **connector_set = NULL, *connector; |
| 2698 | struct drm_framebuffer *fb = NULL; |
| 2699 | struct drm_display_mode *mode = NULL; |
| 2700 | struct drm_mode_set set; |
| 2701 | uint32_t __user *set_connectors_ptr; |
Laurent Pinchart | 4a1b071 | 2012-05-17 13:27:21 +0200 | [diff] [blame] | 2702 | int ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2703 | int i; |
| 2704 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 2705 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 2706 | return -EINVAL; |
| 2707 | |
Zhao Junwang | 01447e9 | 2015-07-07 17:08:35 +0800 | [diff] [blame] | 2708 | /* |
| 2709 | * Universal plane src offsets are only 16.16, prevent havoc for |
| 2710 | * drivers using universal plane code internally. |
| 2711 | */ |
| 2712 | if (crtc_req->x & 0xffff0000 || crtc_req->y & 0xffff0000) |
Ville Syrjälä | 1d97e91 | 2012-03-13 12:35:41 +0200 | [diff] [blame] | 2713 | return -ERANGE; |
| 2714 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 2715 | drm_modeset_lock_all(dev); |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 2716 | crtc = drm_crtc_find(dev, crtc_req->crtc_id); |
| 2717 | if (!crtc) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 2718 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 2719 | ret = -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2720 | goto out; |
| 2721 | } |
Ville Syrjälä | fa3ab4c | 2015-12-08 18:41:53 +0200 | [diff] [blame] | 2722 | DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2723 | |
| 2724 | if (crtc_req->mode_valid) { |
| 2725 | /* If we have a mode we need a framebuffer. */ |
| 2726 | /* If we pass -1, set the mode with the currently bound fb */ |
| 2727 | if (crtc_req->fb_id == -1) { |
Matt Roper | f4510a2 | 2014-04-01 15:22:40 -0700 | [diff] [blame] | 2728 | if (!crtc->primary->fb) { |
Ville Syrjälä | 6653cc8 | 2012-03-13 12:35:38 +0200 | [diff] [blame] | 2729 | DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); |
| 2730 | ret = -EINVAL; |
| 2731 | goto out; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2732 | } |
Matt Roper | f4510a2 | 2014-04-01 15:22:40 -0700 | [diff] [blame] | 2733 | fb = crtc->primary->fb; |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 2734 | /* Make refcounting symmetric with the lookup path. */ |
| 2735 | drm_framebuffer_reference(fb); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2736 | } else { |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 2737 | fb = drm_framebuffer_lookup(dev, crtc_req->fb_id); |
| 2738 | if (!fb) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 2739 | DRM_DEBUG_KMS("Unknown FB ID%d\n", |
| 2740 | crtc_req->fb_id); |
Ville Syrjälä | 37c4e70 | 2013-10-17 13:35:01 +0300 | [diff] [blame] | 2741 | ret = -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2742 | goto out; |
| 2743 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2744 | } |
| 2745 | |
| 2746 | mode = drm_mode_create(dev); |
Ville Syrjälä | ee34ab5 | 2012-03-13 12:35:43 +0200 | [diff] [blame] | 2747 | if (!mode) { |
| 2748 | ret = -ENOMEM; |
| 2749 | goto out; |
| 2750 | } |
| 2751 | |
Daniel Stone | 934a8a8 | 2015-05-22 13:34:48 +0100 | [diff] [blame] | 2752 | ret = drm_mode_convert_umode(mode, &crtc_req->mode); |
Ville Syrjälä | 90367bf | 2012-03-13 12:35:44 +0200 | [diff] [blame] | 2753 | if (ret) { |
| 2754 | DRM_DEBUG_KMS("Invalid mode\n"); |
| 2755 | goto out; |
| 2756 | } |
| 2757 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2758 | drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
Ville Syrjälä | 5f61bb4 | 2012-03-13 12:35:45 +0200 | [diff] [blame] | 2759 | |
Laurent Pinchart | 7eb5f30 | 2015-03-09 10:41:07 +0200 | [diff] [blame] | 2760 | /* |
| 2761 | * Check whether the primary plane supports the fb pixel format. |
| 2762 | * Drivers not implementing the universal planes API use a |
| 2763 | * default formats list provided by the DRM core which doesn't |
| 2764 | * match real hardware capabilities. Skip the check in that |
| 2765 | * case. |
| 2766 | */ |
| 2767 | if (!crtc->primary->format_default) { |
| 2768 | ret = drm_plane_check_pixel_format(crtc->primary, |
| 2769 | fb->pixel_format); |
| 2770 | if (ret) { |
| 2771 | DRM_DEBUG_KMS("Invalid pixel format %s\n", |
| 2772 | drm_get_format_name(fb->pixel_format)); |
| 2773 | goto out; |
| 2774 | } |
| 2775 | } |
| 2776 | |
Damien Lespiau | c11e928 | 2013-09-25 16:45:30 +0100 | [diff] [blame] | 2777 | ret = drm_crtc_check_viewport(crtc, crtc_req->x, crtc_req->y, |
| 2778 | mode, fb); |
| 2779 | if (ret) |
Ville Syrjälä | 5f61bb4 | 2012-03-13 12:35:45 +0200 | [diff] [blame] | 2780 | goto out; |
Damien Lespiau | c11e928 | 2013-09-25 16:45:30 +0100 | [diff] [blame] | 2781 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2782 | } |
| 2783 | |
| 2784 | if (crtc_req->count_connectors == 0 && mode) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 2785 | DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2786 | ret = -EINVAL; |
| 2787 | goto out; |
| 2788 | } |
| 2789 | |
Jakob Bornecrantz | 7781de7 | 2009-08-03 13:43:58 +0100 | [diff] [blame] | 2790 | if (crtc_req->count_connectors > 0 && (!mode || !fb)) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 2791 | DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2792 | crtc_req->count_connectors); |
| 2793 | ret = -EINVAL; |
| 2794 | goto out; |
| 2795 | } |
| 2796 | |
| 2797 | if (crtc_req->count_connectors > 0) { |
| 2798 | u32 out_id; |
| 2799 | |
| 2800 | /* Avoid unbounded kernel memory allocation */ |
| 2801 | if (crtc_req->count_connectors > config->num_connector) { |
| 2802 | ret = -EINVAL; |
| 2803 | goto out; |
| 2804 | } |
| 2805 | |
Thierry Reding | 2f6c538 | 2014-12-10 13:03:36 +0100 | [diff] [blame] | 2806 | connector_set = kmalloc_array(crtc_req->count_connectors, |
| 2807 | sizeof(struct drm_connector *), |
| 2808 | GFP_KERNEL); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2809 | if (!connector_set) { |
| 2810 | ret = -ENOMEM; |
| 2811 | goto out; |
| 2812 | } |
| 2813 | |
| 2814 | for (i = 0; i < crtc_req->count_connectors; i++) { |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 2815 | set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2816 | if (get_user(out_id, &set_connectors_ptr[i])) { |
| 2817 | ret = -EFAULT; |
| 2818 | goto out; |
| 2819 | } |
| 2820 | |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 2821 | connector = drm_connector_find(dev, out_id); |
| 2822 | if (!connector) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 2823 | DRM_DEBUG_KMS("Connector id %d unknown\n", |
| 2824 | out_id); |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 2825 | ret = -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2826 | goto out; |
| 2827 | } |
Jerome Glisse | 9440106 | 2010-07-15 15:43:25 -0400 | [diff] [blame] | 2828 | DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", |
| 2829 | connector->base.id, |
Jani Nikula | 2593382 | 2014-06-03 14:56:20 +0300 | [diff] [blame] | 2830 | connector->name); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2831 | |
| 2832 | connector_set[i] = connector; |
| 2833 | } |
| 2834 | } |
| 2835 | |
| 2836 | set.crtc = crtc; |
| 2837 | set.x = crtc_req->x; |
| 2838 | set.y = crtc_req->y; |
| 2839 | set.mode = mode; |
| 2840 | set.connectors = connector_set; |
| 2841 | set.num_connectors = crtc_req->count_connectors; |
Dave Airlie | 5ef5f72 | 2009-08-17 13:11:23 +1000 | [diff] [blame] | 2842 | set.fb = fb; |
Daniel Vetter | 2d13b67 | 2012-12-11 13:47:23 +0100 | [diff] [blame] | 2843 | ret = drm_mode_set_config_internal(&set); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2844 | |
| 2845 | out: |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 2846 | if (fb) |
| 2847 | drm_framebuffer_unreference(fb); |
| 2848 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2849 | kfree(connector_set); |
Ville Syrjälä | ee34ab5 | 2012-03-13 12:35:43 +0200 | [diff] [blame] | 2850 | drm_mode_destroy(dev, mode); |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 2851 | drm_modeset_unlock_all(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2852 | return ret; |
| 2853 | } |
| 2854 | |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2855 | /** |
| 2856 | * drm_mode_cursor_universal - translate legacy cursor ioctl call into a |
| 2857 | * universal plane handler call |
| 2858 | * @crtc: crtc to update cursor for |
| 2859 | * @req: data pointer for the ioctl |
| 2860 | * @file_priv: drm file for the ioctl call |
| 2861 | * |
| 2862 | * Legacy cursor ioctl's work directly with driver buffer handles. To |
| 2863 | * translate legacy ioctl calls into universal plane handler calls, we need to |
| 2864 | * wrap the native buffer handle in a drm_framebuffer. |
| 2865 | * |
| 2866 | * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB |
| 2867 | * buffer with a pitch of 4*width; the universal plane interface should be used |
| 2868 | * directly in cases where the hardware can support other buffer settings and |
| 2869 | * userspace wants to make use of these capabilities. |
| 2870 | * |
| 2871 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 2872 | * Zero on success, negative errno on failure. |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2873 | */ |
| 2874 | static int drm_mode_cursor_universal(struct drm_crtc *crtc, |
| 2875 | struct drm_mode_cursor2 *req, |
| 2876 | struct drm_file *file_priv) |
| 2877 | { |
| 2878 | struct drm_device *dev = crtc->dev; |
| 2879 | struct drm_framebuffer *fb = NULL; |
| 2880 | struct drm_mode_fb_cmd2 fbreq = { |
| 2881 | .width = req->width, |
| 2882 | .height = req->height, |
| 2883 | .pixel_format = DRM_FORMAT_ARGB8888, |
| 2884 | .pitches = { req->width * 4 }, |
| 2885 | .handles = { req->handle }, |
| 2886 | }; |
| 2887 | int32_t crtc_x, crtc_y; |
| 2888 | uint32_t crtc_w = 0, crtc_h = 0; |
| 2889 | uint32_t src_w = 0, src_h = 0; |
| 2890 | int ret = 0; |
| 2891 | |
| 2892 | BUG_ON(!crtc->cursor); |
Daniel Vetter | f2b50c1 | 2014-09-12 17:07:32 +0200 | [diff] [blame] | 2893 | WARN_ON(crtc->cursor->crtc != crtc && crtc->cursor->crtc != NULL); |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2894 | |
| 2895 | /* |
| 2896 | * Obtain fb we'll be using (either new or existing) and take an extra |
| 2897 | * reference to it if fb != null. setplane will take care of dropping |
| 2898 | * the reference if the plane update fails. |
| 2899 | */ |
| 2900 | if (req->flags & DRM_MODE_CURSOR_BO) { |
| 2901 | if (req->handle) { |
Chris Wilson | 9a6f513 | 2015-02-25 13:45:26 +0000 | [diff] [blame] | 2902 | fb = internal_framebuffer_create(dev, &fbreq, file_priv); |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2903 | if (IS_ERR(fb)) { |
| 2904 | DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); |
| 2905 | return PTR_ERR(fb); |
| 2906 | } |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2907 | } else { |
| 2908 | fb = NULL; |
| 2909 | } |
| 2910 | } else { |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2911 | fb = crtc->cursor->fb; |
| 2912 | if (fb) |
| 2913 | drm_framebuffer_reference(fb); |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2914 | } |
| 2915 | |
| 2916 | if (req->flags & DRM_MODE_CURSOR_MOVE) { |
| 2917 | crtc_x = req->x; |
| 2918 | crtc_y = req->y; |
| 2919 | } else { |
| 2920 | crtc_x = crtc->cursor_x; |
| 2921 | crtc_y = crtc->cursor_y; |
| 2922 | } |
| 2923 | |
| 2924 | if (fb) { |
| 2925 | crtc_w = fb->width; |
| 2926 | crtc_h = fb->height; |
| 2927 | src_w = fb->width << 16; |
| 2928 | src_h = fb->height << 16; |
| 2929 | } |
| 2930 | |
| 2931 | /* |
| 2932 | * setplane_internal will take care of deref'ing either the old or new |
| 2933 | * framebuffer depending on success. |
| 2934 | */ |
Daniel Vetter | f2b50c1 | 2014-09-12 17:07:32 +0200 | [diff] [blame] | 2935 | ret = __setplane_internal(crtc->cursor, crtc, fb, |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2936 | crtc_x, crtc_y, crtc_w, crtc_h, |
| 2937 | 0, 0, src_w, src_h); |
| 2938 | |
| 2939 | /* Update successful; save new cursor position, if necessary */ |
| 2940 | if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) { |
| 2941 | crtc->cursor_x = req->x; |
| 2942 | crtc->cursor_y = req->y; |
| 2943 | } |
| 2944 | |
| 2945 | return ret; |
| 2946 | } |
| 2947 | |
Dave Airlie | 4c813d4 | 2013-06-20 11:48:52 +1000 | [diff] [blame] | 2948 | static int drm_mode_cursor_common(struct drm_device *dev, |
| 2949 | struct drm_mode_cursor2 *req, |
| 2950 | struct drm_file *file_priv) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2951 | { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2952 | struct drm_crtc *crtc; |
| 2953 | int ret = 0; |
| 2954 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 2955 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 2956 | return -EINVAL; |
| 2957 | |
Jakob Bornecrantz | 7c4eaca | 2012-08-16 08:29:03 +0000 | [diff] [blame] | 2958 | if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2959 | return -EINVAL; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2960 | |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 2961 | crtc = drm_crtc_find(dev, req->crtc_id); |
| 2962 | if (!crtc) { |
Zhao Yakui | 58367ed | 2009-07-20 13:48:07 +0800 | [diff] [blame] | 2963 | DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 2964 | return -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2965 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2966 | |
Matt Roper | 161d0dc | 2014-06-10 08:28:10 -0700 | [diff] [blame] | 2967 | /* |
| 2968 | * If this crtc has a universal cursor plane, call that plane's update |
| 2969 | * handler rather than using legacy cursor handlers. |
| 2970 | */ |
Daniel Vetter | 4d02e2d | 2014-11-11 10:12:00 +0100 | [diff] [blame] | 2971 | drm_modeset_lock_crtc(crtc, crtc->cursor); |
Daniel Vetter | f2b50c1 | 2014-09-12 17:07:32 +0200 | [diff] [blame] | 2972 | if (crtc->cursor) { |
| 2973 | ret = drm_mode_cursor_universal(crtc, req, file_priv); |
| 2974 | goto out; |
| 2975 | } |
| 2976 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2977 | if (req->flags & DRM_MODE_CURSOR_BO) { |
Dave Airlie | 4c813d4 | 2013-06-20 11:48:52 +1000 | [diff] [blame] | 2978 | if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2979 | ret = -ENXIO; |
| 2980 | goto out; |
| 2981 | } |
| 2982 | /* Turns off the cursor if handle is 0 */ |
Dave Airlie | 4c813d4 | 2013-06-20 11:48:52 +1000 | [diff] [blame] | 2983 | if (crtc->funcs->cursor_set2) |
| 2984 | ret = crtc->funcs->cursor_set2(crtc, file_priv, req->handle, |
| 2985 | req->width, req->height, req->hot_x, req->hot_y); |
| 2986 | else |
| 2987 | ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, |
| 2988 | req->width, req->height); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2989 | } |
| 2990 | |
| 2991 | if (req->flags & DRM_MODE_CURSOR_MOVE) { |
| 2992 | if (crtc->funcs->cursor_move) { |
| 2993 | ret = crtc->funcs->cursor_move(crtc, req->x, req->y); |
| 2994 | } else { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 2995 | ret = -EFAULT; |
| 2996 | goto out; |
| 2997 | } |
| 2998 | } |
| 2999 | out: |
Daniel Vetter | d059f65 | 2014-07-25 18:07:40 +0200 | [diff] [blame] | 3000 | drm_modeset_unlock_crtc(crtc); |
Daniel Vetter | dac3566 | 2012-12-02 15:24:10 +0100 | [diff] [blame] | 3001 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3002 | return ret; |
Dave Airlie | 4c813d4 | 2013-06-20 11:48:52 +1000 | [diff] [blame] | 3003 | |
| 3004 | } |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3005 | |
| 3006 | |
| 3007 | /** |
| 3008 | * drm_mode_cursor_ioctl - set CRTC's cursor configuration |
| 3009 | * @dev: drm device for the ioctl |
| 3010 | * @data: data pointer for the ioctl |
| 3011 | * @file_priv: drm file for the ioctl call |
| 3012 | * |
| 3013 | * Set the cursor configuration based on user request. |
| 3014 | * |
| 3015 | * Called by the user via ioctl. |
| 3016 | * |
| 3017 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 3018 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3019 | */ |
Dave Airlie | 4c813d4 | 2013-06-20 11:48:52 +1000 | [diff] [blame] | 3020 | int drm_mode_cursor_ioctl(struct drm_device *dev, |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3021 | void *data, struct drm_file *file_priv) |
Dave Airlie | 4c813d4 | 2013-06-20 11:48:52 +1000 | [diff] [blame] | 3022 | { |
| 3023 | struct drm_mode_cursor *req = data; |
| 3024 | struct drm_mode_cursor2 new_req; |
| 3025 | |
| 3026 | memcpy(&new_req, req, sizeof(struct drm_mode_cursor)); |
| 3027 | new_req.hot_x = new_req.hot_y = 0; |
| 3028 | |
| 3029 | return drm_mode_cursor_common(dev, &new_req, file_priv); |
| 3030 | } |
| 3031 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3032 | /** |
| 3033 | * drm_mode_cursor2_ioctl - set CRTC's cursor configuration |
| 3034 | * @dev: drm device for the ioctl |
| 3035 | * @data: data pointer for the ioctl |
| 3036 | * @file_priv: drm file for the ioctl call |
| 3037 | * |
| 3038 | * Set the cursor configuration based on user request. This implements the 2nd |
| 3039 | * version of the cursor ioctl, which allows userspace to additionally specify |
| 3040 | * the hotspot of the pointer. |
| 3041 | * |
| 3042 | * Called by the user via ioctl. |
| 3043 | * |
| 3044 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 3045 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3046 | */ |
Dave Airlie | 4c813d4 | 2013-06-20 11:48:52 +1000 | [diff] [blame] | 3047 | int drm_mode_cursor2_ioctl(struct drm_device *dev, |
| 3048 | void *data, struct drm_file *file_priv) |
| 3049 | { |
| 3050 | struct drm_mode_cursor2 *req = data; |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 3051 | |
Dave Airlie | 4c813d4 | 2013-06-20 11:48:52 +1000 | [diff] [blame] | 3052 | return drm_mode_cursor_common(dev, req, file_priv); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3053 | } |
| 3054 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3055 | /** |
| 3056 | * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description |
| 3057 | * @bpp: bits per pixels |
| 3058 | * @depth: bit depth per pixel |
| 3059 | * |
| 3060 | * Computes a drm fourcc pixel format code for the given @bpp/@depth values. |
| 3061 | * Useful in fbdev emulation code, since that deals in those values. |
| 3062 | */ |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3063 | uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) |
| 3064 | { |
| 3065 | uint32_t fmt; |
| 3066 | |
| 3067 | switch (bpp) { |
| 3068 | case 8: |
Ville Syrjälä | d84f031 | 2013-01-31 19:43:38 +0200 | [diff] [blame] | 3069 | fmt = DRM_FORMAT_C8; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3070 | break; |
| 3071 | case 16: |
| 3072 | if (depth == 15) |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 3073 | fmt = DRM_FORMAT_XRGB1555; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3074 | else |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 3075 | fmt = DRM_FORMAT_RGB565; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3076 | break; |
| 3077 | case 24: |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 3078 | fmt = DRM_FORMAT_RGB888; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3079 | break; |
| 3080 | case 32: |
| 3081 | if (depth == 24) |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 3082 | fmt = DRM_FORMAT_XRGB8888; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3083 | else if (depth == 30) |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 3084 | fmt = DRM_FORMAT_XRGB2101010; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3085 | else |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 3086 | fmt = DRM_FORMAT_ARGB8888; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3087 | break; |
| 3088 | default: |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 3089 | DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); |
| 3090 | fmt = DRM_FORMAT_XRGB8888; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3091 | break; |
| 3092 | } |
| 3093 | |
| 3094 | return fmt; |
| 3095 | } |
| 3096 | EXPORT_SYMBOL(drm_mode_legacy_fb_format); |
| 3097 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3098 | /** |
| 3099 | * drm_mode_addfb - add an FB to the graphics configuration |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 3100 | * @dev: drm device for the ioctl |
| 3101 | * @data: data pointer for the ioctl |
| 3102 | * @file_priv: drm file for the ioctl call |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3103 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3104 | * Add a new FB to the specified CRTC, given a user request. This is the |
Chuck Ebbert | 209f552 | 2014-10-08 11:37:20 -0500 | [diff] [blame] | 3105 | * original addfb ioctl which only supported RGB formats. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3106 | * |
| 3107 | * Called by the user via ioctl. |
| 3108 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3109 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 3110 | * Zero on success, negative errno on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3111 | */ |
| 3112 | int drm_mode_addfb(struct drm_device *dev, |
| 3113 | void *data, struct drm_file *file_priv) |
| 3114 | { |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3115 | struct drm_mode_fb_cmd *or = data; |
| 3116 | struct drm_mode_fb_cmd2 r = {}; |
Chuck Ebbert | 228f2cb | 2014-10-08 11:40:34 -0500 | [diff] [blame] | 3117 | int ret; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3118 | |
Chuck Ebbert | 228f2cb | 2014-10-08 11:40:34 -0500 | [diff] [blame] | 3119 | /* convert to new format and call new ioctl */ |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3120 | r.fb_id = or->fb_id; |
| 3121 | r.width = or->width; |
| 3122 | r.height = or->height; |
| 3123 | r.pitches[0] = or->pitch; |
| 3124 | r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); |
| 3125 | r.handles[0] = or->handle; |
| 3126 | |
Chuck Ebbert | 228f2cb | 2014-10-08 11:40:34 -0500 | [diff] [blame] | 3127 | ret = drm_mode_addfb2(dev, &r, file_priv); |
| 3128 | if (ret) |
| 3129 | return ret; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3130 | |
Chuck Ebbert | 228f2cb | 2014-10-08 11:40:34 -0500 | [diff] [blame] | 3131 | or->fb_id = r.fb_id; |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 3132 | |
Daniel Vetter | baf698b | 2014-11-12 11:59:47 +0100 | [diff] [blame] | 3133 | return 0; |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3134 | } |
| 3135 | |
Ville Syrjälä | cff91b6 | 2012-05-24 20:54:00 +0300 | [diff] [blame] | 3136 | static int format_check(const struct drm_mode_fb_cmd2 *r) |
Ville Syrjälä | 935b597 | 2011-12-20 00:06:48 +0200 | [diff] [blame] | 3137 | { |
| 3138 | uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; |
| 3139 | |
| 3140 | switch (format) { |
| 3141 | case DRM_FORMAT_C8: |
| 3142 | case DRM_FORMAT_RGB332: |
| 3143 | case DRM_FORMAT_BGR233: |
| 3144 | case DRM_FORMAT_XRGB4444: |
| 3145 | case DRM_FORMAT_XBGR4444: |
| 3146 | case DRM_FORMAT_RGBX4444: |
| 3147 | case DRM_FORMAT_BGRX4444: |
| 3148 | case DRM_FORMAT_ARGB4444: |
| 3149 | case DRM_FORMAT_ABGR4444: |
| 3150 | case DRM_FORMAT_RGBA4444: |
| 3151 | case DRM_FORMAT_BGRA4444: |
| 3152 | case DRM_FORMAT_XRGB1555: |
| 3153 | case DRM_FORMAT_XBGR1555: |
| 3154 | case DRM_FORMAT_RGBX5551: |
| 3155 | case DRM_FORMAT_BGRX5551: |
| 3156 | case DRM_FORMAT_ARGB1555: |
| 3157 | case DRM_FORMAT_ABGR1555: |
| 3158 | case DRM_FORMAT_RGBA5551: |
| 3159 | case DRM_FORMAT_BGRA5551: |
| 3160 | case DRM_FORMAT_RGB565: |
| 3161 | case DRM_FORMAT_BGR565: |
| 3162 | case DRM_FORMAT_RGB888: |
| 3163 | case DRM_FORMAT_BGR888: |
| 3164 | case DRM_FORMAT_XRGB8888: |
| 3165 | case DRM_FORMAT_XBGR8888: |
| 3166 | case DRM_FORMAT_RGBX8888: |
| 3167 | case DRM_FORMAT_BGRX8888: |
| 3168 | case DRM_FORMAT_ARGB8888: |
| 3169 | case DRM_FORMAT_ABGR8888: |
| 3170 | case DRM_FORMAT_RGBA8888: |
| 3171 | case DRM_FORMAT_BGRA8888: |
| 3172 | case DRM_FORMAT_XRGB2101010: |
| 3173 | case DRM_FORMAT_XBGR2101010: |
| 3174 | case DRM_FORMAT_RGBX1010102: |
| 3175 | case DRM_FORMAT_BGRX1010102: |
| 3176 | case DRM_FORMAT_ARGB2101010: |
| 3177 | case DRM_FORMAT_ABGR2101010: |
| 3178 | case DRM_FORMAT_RGBA1010102: |
| 3179 | case DRM_FORMAT_BGRA1010102: |
| 3180 | case DRM_FORMAT_YUYV: |
| 3181 | case DRM_FORMAT_YVYU: |
| 3182 | case DRM_FORMAT_UYVY: |
| 3183 | case DRM_FORMAT_VYUY: |
| 3184 | case DRM_FORMAT_AYUV: |
| 3185 | case DRM_FORMAT_NV12: |
| 3186 | case DRM_FORMAT_NV21: |
| 3187 | case DRM_FORMAT_NV16: |
| 3188 | case DRM_FORMAT_NV61: |
Laurent Pinchart | ba623f6 | 2012-05-18 23:47:40 +0200 | [diff] [blame] | 3189 | case DRM_FORMAT_NV24: |
| 3190 | case DRM_FORMAT_NV42: |
Ville Syrjälä | 935b597 | 2011-12-20 00:06:48 +0200 | [diff] [blame] | 3191 | case DRM_FORMAT_YUV410: |
| 3192 | case DRM_FORMAT_YVU410: |
| 3193 | case DRM_FORMAT_YUV411: |
| 3194 | case DRM_FORMAT_YVU411: |
| 3195 | case DRM_FORMAT_YUV420: |
| 3196 | case DRM_FORMAT_YVU420: |
| 3197 | case DRM_FORMAT_YUV422: |
| 3198 | case DRM_FORMAT_YVU422: |
| 3199 | case DRM_FORMAT_YUV444: |
| 3200 | case DRM_FORMAT_YVU444: |
| 3201 | return 0; |
| 3202 | default: |
Ville Syrjälä | 23c453a | 2013-10-15 21:06:51 +0300 | [diff] [blame] | 3203 | DRM_DEBUG_KMS("invalid pixel format %s\n", |
| 3204 | drm_get_format_name(r->pixel_format)); |
Ville Syrjälä | 935b597 | 2011-12-20 00:06:48 +0200 | [diff] [blame] | 3205 | return -EINVAL; |
| 3206 | } |
| 3207 | } |
| 3208 | |
Ville Syrjälä | cff91b6 | 2012-05-24 20:54:00 +0300 | [diff] [blame] | 3209 | static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3210 | { |
| 3211 | int ret, hsub, vsub, num_planes, i; |
| 3212 | |
| 3213 | ret = format_check(r); |
| 3214 | if (ret) { |
Ville Syrjälä | 6ba6d03 | 2013-06-10 11:15:10 +0300 | [diff] [blame] | 3215 | DRM_DEBUG_KMS("bad framebuffer format %s\n", |
| 3216 | drm_get_format_name(r->pixel_format)); |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3217 | return ret; |
| 3218 | } |
| 3219 | |
| 3220 | hsub = drm_format_horz_chroma_subsampling(r->pixel_format); |
| 3221 | vsub = drm_format_vert_chroma_subsampling(r->pixel_format); |
| 3222 | num_planes = drm_format_num_planes(r->pixel_format); |
| 3223 | |
| 3224 | if (r->width == 0 || r->width % hsub) { |
Chuck Ebbert | 209f552 | 2014-10-08 11:37:20 -0500 | [diff] [blame] | 3225 | DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width); |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3226 | return -EINVAL; |
| 3227 | } |
| 3228 | |
| 3229 | if (r->height == 0 || r->height % vsub) { |
Dave Airlie | 1aa1b11 | 2012-05-01 17:38:35 +0100 | [diff] [blame] | 3230 | DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3231 | return -EINVAL; |
| 3232 | } |
| 3233 | |
| 3234 | for (i = 0; i < num_planes; i++) { |
| 3235 | unsigned int width = r->width / (i != 0 ? hsub : 1); |
Ville Syrjälä | b180b5d | 2012-10-25 18:05:04 +0000 | [diff] [blame] | 3236 | unsigned int height = r->height / (i != 0 ? vsub : 1); |
| 3237 | unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3238 | |
| 3239 | if (!r->handles[i]) { |
Dave Airlie | 1aa1b11 | 2012-05-01 17:38:35 +0100 | [diff] [blame] | 3240 | DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3241 | return -EINVAL; |
| 3242 | } |
| 3243 | |
Ville Syrjälä | b180b5d | 2012-10-25 18:05:04 +0000 | [diff] [blame] | 3244 | if ((uint64_t) width * cpp > UINT_MAX) |
| 3245 | return -ERANGE; |
| 3246 | |
| 3247 | if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) |
| 3248 | return -ERANGE; |
| 3249 | |
| 3250 | if (r->pitches[i] < width * cpp) { |
Dave Airlie | 1aa1b11 | 2012-05-01 17:38:35 +0100 | [diff] [blame] | 3251 | DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3252 | return -EINVAL; |
| 3253 | } |
Rob Clark | e3eb325 | 2015-02-05 14:41:52 +0000 | [diff] [blame] | 3254 | |
| 3255 | if (r->modifier[i] && !(r->flags & DRM_MODE_FB_MODIFIERS)) { |
| 3256 | DRM_DEBUG_KMS("bad fb modifier %llu for plane %d\n", |
| 3257 | r->modifier[i], i); |
| 3258 | return -EINVAL; |
| 3259 | } |
Rob Clark | 570655b | 2015-01-30 20:18:11 +0530 | [diff] [blame] | 3260 | |
| 3261 | /* modifier specific checks: */ |
| 3262 | switch (r->modifier[i]) { |
| 3263 | case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE: |
| 3264 | /* NOTE: the pitch restriction may be lifted later if it turns |
| 3265 | * out that no hw has this restriction: |
| 3266 | */ |
| 3267 | if (r->pixel_format != DRM_FORMAT_NV12 || |
| 3268 | width % 128 || height % 32 || |
| 3269 | r->pitches[i] % 128) { |
| 3270 | DRM_DEBUG_KMS("bad modifier data for plane %d\n", i); |
| 3271 | return -EINVAL; |
| 3272 | } |
| 3273 | break; |
| 3274 | |
| 3275 | default: |
| 3276 | break; |
| 3277 | } |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3278 | } |
| 3279 | |
Daniel Vetter | bbe16a4 | 2015-05-20 16:53:53 +0200 | [diff] [blame] | 3280 | for (i = num_planes; i < 4; i++) { |
| 3281 | if (r->modifier[i]) { |
| 3282 | DRM_DEBUG_KMS("non-zero modifier for unused plane %d\n", i); |
| 3283 | return -EINVAL; |
| 3284 | } |
| 3285 | |
| 3286 | /* Pre-FB_MODIFIERS userspace didn't clear the structs properly. */ |
| 3287 | if (!(r->flags & DRM_MODE_FB_MODIFIERS)) |
| 3288 | continue; |
| 3289 | |
| 3290 | if (r->handles[i]) { |
| 3291 | DRM_DEBUG_KMS("buffer object handle for unused plane %d\n", i); |
| 3292 | return -EINVAL; |
| 3293 | } |
| 3294 | |
| 3295 | if (r->pitches[i]) { |
| 3296 | DRM_DEBUG_KMS("non-zero pitch for unused plane %d\n", i); |
| 3297 | return -EINVAL; |
| 3298 | } |
| 3299 | |
| 3300 | if (r->offsets[i]) { |
| 3301 | DRM_DEBUG_KMS("non-zero offset for unused plane %d\n", i); |
| 3302 | return -EINVAL; |
| 3303 | } |
| 3304 | } |
| 3305 | |
Ville Syrjälä | d1b45d5 | 2012-04-05 21:35:18 +0300 | [diff] [blame] | 3306 | return 0; |
| 3307 | } |
| 3308 | |
Chris Wilson | 9a6f513 | 2015-02-25 13:45:26 +0000 | [diff] [blame] | 3309 | static struct drm_framebuffer * |
| 3310 | internal_framebuffer_create(struct drm_device *dev, |
Ville Syrjälä | 1eb8345 | 2015-11-11 19:11:29 +0200 | [diff] [blame] | 3311 | const struct drm_mode_fb_cmd2 *r, |
Chris Wilson | 9a6f513 | 2015-02-25 13:45:26 +0000 | [diff] [blame] | 3312 | struct drm_file *file_priv) |
Matt Roper | c394c2b | 2014-06-10 08:28:08 -0700 | [diff] [blame] | 3313 | { |
| 3314 | struct drm_mode_config *config = &dev->mode_config; |
| 3315 | struct drm_framebuffer *fb; |
| 3316 | int ret; |
| 3317 | |
Rob Clark | e3eb325 | 2015-02-05 14:41:52 +0000 | [diff] [blame] | 3318 | if (r->flags & ~(DRM_MODE_FB_INTERLACED | DRM_MODE_FB_MODIFIERS)) { |
Matt Roper | c394c2b | 2014-06-10 08:28:08 -0700 | [diff] [blame] | 3319 | DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); |
| 3320 | return ERR_PTR(-EINVAL); |
| 3321 | } |
| 3322 | |
| 3323 | if ((config->min_width > r->width) || (r->width > config->max_width)) { |
| 3324 | DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", |
| 3325 | r->width, config->min_width, config->max_width); |
| 3326 | return ERR_PTR(-EINVAL); |
| 3327 | } |
| 3328 | if ((config->min_height > r->height) || (r->height > config->max_height)) { |
| 3329 | DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", |
| 3330 | r->height, config->min_height, config->max_height); |
| 3331 | return ERR_PTR(-EINVAL); |
| 3332 | } |
| 3333 | |
Rob Clark | e3eb325 | 2015-02-05 14:41:52 +0000 | [diff] [blame] | 3334 | if (r->flags & DRM_MODE_FB_MODIFIERS && |
| 3335 | !dev->mode_config.allow_fb_modifiers) { |
| 3336 | DRM_DEBUG_KMS("driver does not support fb modifiers\n"); |
| 3337 | return ERR_PTR(-EINVAL); |
| 3338 | } |
| 3339 | |
Matt Roper | c394c2b | 2014-06-10 08:28:08 -0700 | [diff] [blame] | 3340 | ret = framebuffer_check(r); |
| 3341 | if (ret) |
| 3342 | return ERR_PTR(ret); |
| 3343 | |
| 3344 | fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
| 3345 | if (IS_ERR(fb)) { |
| 3346 | DRM_DEBUG_KMS("could not create framebuffer\n"); |
| 3347 | return fb; |
| 3348 | } |
| 3349 | |
Matt Roper | c394c2b | 2014-06-10 08:28:08 -0700 | [diff] [blame] | 3350 | return fb; |
| 3351 | } |
| 3352 | |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3353 | /** |
| 3354 | * drm_mode_addfb2 - add an FB to the graphics configuration |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 3355 | * @dev: drm device for the ioctl |
| 3356 | * @data: data pointer for the ioctl |
| 3357 | * @file_priv: drm file for the ioctl call |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3358 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3359 | * Add a new FB to the specified CRTC, given a user request with format. This is |
| 3360 | * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers |
| 3361 | * and uses fourcc codes as pixel format specifiers. |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3362 | * |
| 3363 | * Called by the user via ioctl. |
| 3364 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3365 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 3366 | * Zero on success, negative errno on failure. |
Jesse Barnes | 308e5bc | 2011-11-14 14:51:28 -0800 | [diff] [blame] | 3367 | */ |
| 3368 | int drm_mode_addfb2(struct drm_device *dev, |
| 3369 | void *data, struct drm_file *file_priv) |
| 3370 | { |
Chris Wilson | 9a6f513 | 2015-02-25 13:45:26 +0000 | [diff] [blame] | 3371 | struct drm_mode_fb_cmd2 *r = data; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3372 | struct drm_framebuffer *fb; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3373 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 3374 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 3375 | return -EINVAL; |
| 3376 | |
Chris Wilson | 9a6f513 | 2015-02-25 13:45:26 +0000 | [diff] [blame] | 3377 | fb = internal_framebuffer_create(dev, r, file_priv); |
Matt Roper | c394c2b | 2014-06-10 08:28:08 -0700 | [diff] [blame] | 3378 | if (IS_ERR(fb)) |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 3379 | return PTR_ERR(fb); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3380 | |
Chris Wilson | 9a6f513 | 2015-02-25 13:45:26 +0000 | [diff] [blame] | 3381 | /* Transfer ownership to the filp for reaping on close */ |
| 3382 | |
| 3383 | DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); |
| 3384 | mutex_lock(&file_priv->fbs_lock); |
| 3385 | r->fb_id = fb->base.id; |
| 3386 | list_add(&fb->filp_head, &file_priv->fbs); |
| 3387 | mutex_unlock(&file_priv->fbs_lock); |
| 3388 | |
Matt Roper | c394c2b | 2014-06-10 08:28:08 -0700 | [diff] [blame] | 3389 | return 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3390 | } |
| 3391 | |
| 3392 | /** |
| 3393 | * drm_mode_rmfb - remove an FB from the configuration |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 3394 | * @dev: drm device for the ioctl |
| 3395 | * @data: data pointer for the ioctl |
| 3396 | * @file_priv: drm file for the ioctl call |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3397 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3398 | * Remove the FB specified by the user. |
| 3399 | * |
| 3400 | * Called by the user via ioctl. |
| 3401 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3402 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 3403 | * Zero on success, negative errno on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3404 | */ |
| 3405 | int drm_mode_rmfb(struct drm_device *dev, |
| 3406 | void *data, struct drm_file *file_priv) |
| 3407 | { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3408 | struct drm_framebuffer *fb = NULL; |
| 3409 | struct drm_framebuffer *fbl = NULL; |
| 3410 | uint32_t *id = data; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3411 | int found = 0; |
| 3412 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 3413 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 3414 | return -EINVAL; |
| 3415 | |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 3416 | mutex_lock(&file_priv->fbs_lock); |
Daniel Vetter | 2b677e8 | 2012-12-10 21:16:05 +0100 | [diff] [blame] | 3417 | mutex_lock(&dev->mode_config.fb_lock); |
| 3418 | fb = __drm_framebuffer_lookup(dev, *id); |
| 3419 | if (!fb) |
| 3420 | goto fail_lookup; |
| 3421 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3422 | list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
| 3423 | if (fb == fbl) |
| 3424 | found = 1; |
Daniel Vetter | 2b677e8 | 2012-12-10 21:16:05 +0100 | [diff] [blame] | 3425 | if (!found) |
| 3426 | goto fail_lookup; |
| 3427 | |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 3428 | list_del_init(&fb->filp_head); |
Daniel Vetter | 2b677e8 | 2012-12-10 21:16:05 +0100 | [diff] [blame] | 3429 | mutex_unlock(&dev->mode_config.fb_lock); |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 3430 | mutex_unlock(&file_priv->fbs_lock); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3431 | |
Maarten Lankhorst | 1380313 | 2015-09-09 16:40:56 +0200 | [diff] [blame] | 3432 | drm_framebuffer_unreference(fb); |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 3433 | |
Daniel Vetter | 2b677e8 | 2012-12-10 21:16:05 +0100 | [diff] [blame] | 3434 | return 0; |
| 3435 | |
| 3436 | fail_lookup: |
| 3437 | mutex_unlock(&dev->mode_config.fb_lock); |
| 3438 | mutex_unlock(&file_priv->fbs_lock); |
| 3439 | |
Ville Syrjälä | 37c4e70 | 2013-10-17 13:35:01 +0300 | [diff] [blame] | 3440 | return -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3441 | } |
| 3442 | |
| 3443 | /** |
| 3444 | * drm_mode_getfb - get FB info |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 3445 | * @dev: drm device for the ioctl |
| 3446 | * @data: data pointer for the ioctl |
| 3447 | * @file_priv: drm file for the ioctl call |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3448 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3449 | * Lookup the FB given its ID and return info about it. |
| 3450 | * |
| 3451 | * Called by the user via ioctl. |
| 3452 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3453 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 3454 | * Zero on success, negative errno on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3455 | */ |
| 3456 | int drm_mode_getfb(struct drm_device *dev, |
| 3457 | void *data, struct drm_file *file_priv) |
| 3458 | { |
| 3459 | struct drm_mode_fb_cmd *r = data; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3460 | struct drm_framebuffer *fb; |
Daniel Vetter | 58c0dca | 2012-12-13 23:06:08 +0100 | [diff] [blame] | 3461 | int ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3462 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 3463 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 3464 | return -EINVAL; |
| 3465 | |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 3466 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
Daniel Vetter | 58c0dca | 2012-12-13 23:06:08 +0100 | [diff] [blame] | 3467 | if (!fb) |
Ville Syrjälä | 37c4e70 | 2013-10-17 13:35:01 +0300 | [diff] [blame] | 3468 | return -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3469 | |
| 3470 | r->height = fb->height; |
| 3471 | r->width = fb->width; |
| 3472 | r->depth = fb->depth; |
| 3473 | r->bpp = fb->bits_per_pixel; |
Ville Syrjälä | 01f2c77 | 2011-12-20 00:06:49 +0200 | [diff] [blame] | 3474 | r->pitch = fb->pitches[0]; |
David Herrmann | 101b96f | 2013-08-26 15:16:49 +0200 | [diff] [blame] | 3475 | if (fb->funcs->create_handle) { |
Thomas Hellstrom | 09f308f | 2014-03-13 10:00:42 +0100 | [diff] [blame] | 3476 | if (file_priv->is_master || capable(CAP_SYS_ADMIN) || |
Thomas Hellstrom | 4368305 | 2014-03-13 11:07:44 +0100 | [diff] [blame] | 3477 | drm_is_control_client(file_priv)) { |
David Herrmann | 101b96f | 2013-08-26 15:16:49 +0200 | [diff] [blame] | 3478 | ret = fb->funcs->create_handle(fb, file_priv, |
| 3479 | &r->handle); |
| 3480 | } else { |
| 3481 | /* GET_FB() is an unprivileged ioctl so we must not |
| 3482 | * return a buffer-handle to non-master processes! For |
| 3483 | * backwards-compatibility reasons, we cannot make |
| 3484 | * GET_FB() privileged, so just return an invalid handle |
| 3485 | * for non-masters. */ |
| 3486 | r->handle = 0; |
| 3487 | ret = 0; |
| 3488 | } |
| 3489 | } else { |
Daniel Vetter | af26ef3 | 2012-12-13 23:07:50 +0100 | [diff] [blame] | 3490 | ret = -ENODEV; |
David Herrmann | 101b96f | 2013-08-26 15:16:49 +0200 | [diff] [blame] | 3491 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3492 | |
Daniel Vetter | 58c0dca | 2012-12-13 23:06:08 +0100 | [diff] [blame] | 3493 | drm_framebuffer_unreference(fb); |
| 3494 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3495 | return ret; |
| 3496 | } |
| 3497 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3498 | /** |
| 3499 | * drm_mode_dirtyfb_ioctl - flush frontbuffer rendering on an FB |
| 3500 | * @dev: drm device for the ioctl |
| 3501 | * @data: data pointer for the ioctl |
| 3502 | * @file_priv: drm file for the ioctl call |
| 3503 | * |
| 3504 | * Lookup the FB and flush out the damaged area supplied by userspace as a clip |
| 3505 | * rectangle list. Generic userspace which does frontbuffer rendering must call |
| 3506 | * this ioctl to flush out the changes on manual-update display outputs, e.g. |
| 3507 | * usb display-link, mipi manual update panels or edp panel self refresh modes. |
| 3508 | * |
| 3509 | * Modesetting drivers which always update the frontbuffer do not need to |
| 3510 | * implement the corresponding ->dirty framebuffer callback. |
| 3511 | * |
| 3512 | * Called by the user via ioctl. |
| 3513 | * |
| 3514 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 3515 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3516 | */ |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3517 | int drm_mode_dirtyfb_ioctl(struct drm_device *dev, |
| 3518 | void *data, struct drm_file *file_priv) |
| 3519 | { |
| 3520 | struct drm_clip_rect __user *clips_ptr; |
| 3521 | struct drm_clip_rect *clips = NULL; |
| 3522 | struct drm_mode_fb_dirty_cmd *r = data; |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3523 | struct drm_framebuffer *fb; |
| 3524 | unsigned flags; |
| 3525 | int num_clips; |
Laurent Pinchart | 4a1b071 | 2012-05-17 13:27:21 +0200 | [diff] [blame] | 3526 | int ret; |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3527 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 3528 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 3529 | return -EINVAL; |
| 3530 | |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 3531 | fb = drm_framebuffer_lookup(dev, r->fb_id); |
Daniel Vetter | 4ccf097 | 2012-12-11 00:38:18 +0100 | [diff] [blame] | 3532 | if (!fb) |
Ville Syrjälä | 37c4e70 | 2013-10-17 13:35:01 +0300 | [diff] [blame] | 3533 | return -ENOENT; |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3534 | |
| 3535 | num_clips = r->num_clips; |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 3536 | clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3537 | |
| 3538 | if (!num_clips != !clips_ptr) { |
| 3539 | ret = -EINVAL; |
| 3540 | goto out_err1; |
| 3541 | } |
| 3542 | |
| 3543 | flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; |
| 3544 | |
| 3545 | /* If userspace annotates copy, clips must come in pairs */ |
| 3546 | if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { |
| 3547 | ret = -EINVAL; |
| 3548 | goto out_err1; |
| 3549 | } |
| 3550 | |
| 3551 | if (num_clips && clips_ptr) { |
Xi Wang | a5cd335 | 2011-11-23 01:12:01 -0500 | [diff] [blame] | 3552 | if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { |
| 3553 | ret = -EINVAL; |
| 3554 | goto out_err1; |
| 3555 | } |
Thierry Reding | bd3f0ff | 2014-12-10 13:03:35 +0100 | [diff] [blame] | 3556 | clips = kcalloc(num_clips, sizeof(*clips), GFP_KERNEL); |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3557 | if (!clips) { |
| 3558 | ret = -ENOMEM; |
| 3559 | goto out_err1; |
| 3560 | } |
| 3561 | |
| 3562 | ret = copy_from_user(clips, clips_ptr, |
| 3563 | num_clips * sizeof(*clips)); |
Dan Carpenter | e902a35 | 2010-06-04 12:23:21 +0200 | [diff] [blame] | 3564 | if (ret) { |
| 3565 | ret = -EFAULT; |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3566 | goto out_err2; |
Dan Carpenter | e902a35 | 2010-06-04 12:23:21 +0200 | [diff] [blame] | 3567 | } |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3568 | } |
| 3569 | |
| 3570 | if (fb->funcs->dirty) { |
Thomas Hellstrom | 02b0016 | 2010-10-05 12:43:02 +0200 | [diff] [blame] | 3571 | ret = fb->funcs->dirty(fb, file_priv, flags, r->color, |
| 3572 | clips, num_clips); |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3573 | } else { |
| 3574 | ret = -ENOSYS; |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3575 | } |
| 3576 | |
| 3577 | out_err2: |
| 3578 | kfree(clips); |
| 3579 | out_err1: |
Daniel Vetter | 4ccf097 | 2012-12-11 00:38:18 +0100 | [diff] [blame] | 3580 | drm_framebuffer_unreference(fb); |
| 3581 | |
Jakob Bornecrantz | 884840a | 2009-12-03 23:25:47 +0000 | [diff] [blame] | 3582 | return ret; |
| 3583 | } |
| 3584 | |
| 3585 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3586 | /** |
| 3587 | * drm_fb_release - remove and free the FBs on this file |
Daniel Vetter | 065a50ed | 2012-12-02 00:09:18 +0100 | [diff] [blame] | 3588 | * @priv: drm file for the ioctl |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3589 | * |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3590 | * Destroy all the FBs associated with @filp. |
| 3591 | * |
| 3592 | * Called by the user via ioctl. |
| 3593 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3594 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 3595 | * Zero on success, negative errno on failure. |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3596 | */ |
Kristian Høgsberg | ea39f83 | 2009-02-12 14:37:56 -0500 | [diff] [blame] | 3597 | void drm_fb_release(struct drm_file *priv) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3598 | { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3599 | struct drm_framebuffer *fb, *tfb; |
| 3600 | |
Daniel Vetter | 1b11629 | 2014-09-24 21:51:06 +0200 | [diff] [blame] | 3601 | /* |
| 3602 | * When the file gets released that means no one else can access the fb |
Martin Peres | e2db726 | 2014-12-09 07:24:04 +0100 | [diff] [blame] | 3603 | * list any more, so no need to grab fpriv->fbs_lock. And we need to |
Daniel Vetter | 1b11629 | 2014-09-24 21:51:06 +0200 | [diff] [blame] | 3604 | * avoid upsetting lockdep since the universal cursor code adds a |
| 3605 | * framebuffer while holding mutex locks. |
| 3606 | * |
| 3607 | * Note that a real deadlock between fpriv->fbs_lock and the modeset |
| 3608 | * locks is impossible here since no one else but this function can get |
| 3609 | * at it any more. |
| 3610 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3611 | list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
Daniel Vetter | 4b096ac | 2012-12-10 21:19:18 +0100 | [diff] [blame] | 3612 | list_del_init(&fb->filp_head); |
Daniel Vetter | 2b677e8 | 2012-12-10 21:16:05 +0100 | [diff] [blame] | 3613 | |
Maarten Lankhorst | 73f7570 | 2015-09-09 16:40:57 +0200 | [diff] [blame] | 3614 | /* This drops the fpriv->fbs reference. */ |
Maarten Lankhorst | 1380313 | 2015-09-09 16:40:56 +0200 | [diff] [blame] | 3615 | drm_framebuffer_unreference(fb); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3616 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3617 | } |
| 3618 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3619 | /** |
| 3620 | * drm_property_create - create a new property type |
| 3621 | * @dev: drm device |
| 3622 | * @flags: flags specifying the property type |
| 3623 | * @name: name of the property |
| 3624 | * @num_values: number of pre-defined values |
| 3625 | * |
| 3626 | * This creates a new generic drm property which can then be attached to a drm |
| 3627 | * object with drm_object_attach_property. The returned property object must be |
| 3628 | * freed with drm_property_destroy. |
| 3629 | * |
Damien Lespiau | 3b5b993 | 2014-10-31 14:39:11 +0000 | [diff] [blame] | 3630 | * Note that the DRM core keeps a per-device list of properties and that, if |
| 3631 | * drm_mode_config_cleanup() is called, it will destroy all properties created |
| 3632 | * by the driver. |
| 3633 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3634 | * Returns: |
| 3635 | * A pointer to the newly created property on success, NULL on failure. |
| 3636 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3637 | struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
| 3638 | const char *name, int num_values) |
| 3639 | { |
| 3640 | struct drm_property *property = NULL; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 3641 | int ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3642 | |
| 3643 | property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); |
| 3644 | if (!property) |
| 3645 | return NULL; |
| 3646 | |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 3647 | property->dev = dev; |
| 3648 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3649 | if (num_values) { |
Thierry Reding | bd3f0ff | 2014-12-10 13:03:35 +0100 | [diff] [blame] | 3650 | property->values = kcalloc(num_values, sizeof(uint64_t), |
| 3651 | GFP_KERNEL); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3652 | if (!property->values) |
| 3653 | goto fail; |
| 3654 | } |
| 3655 | |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 3656 | ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
| 3657 | if (ret) |
| 3658 | goto fail; |
| 3659 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3660 | property->flags = flags; |
| 3661 | property->num_values = num_values; |
Daniel Vetter | 3758b34 | 2014-11-19 18:38:10 +0100 | [diff] [blame] | 3662 | INIT_LIST_HEAD(&property->enum_list); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3663 | |
Vinson Lee | 471dd2e | 2011-11-10 11:55:40 -0800 | [diff] [blame] | 3664 | if (name) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3665 | strncpy(property->name, name, DRM_PROP_NAME_LEN); |
Vinson Lee | 471dd2e | 2011-11-10 11:55:40 -0800 | [diff] [blame] | 3666 | property->name[DRM_PROP_NAME_LEN-1] = '\0'; |
| 3667 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3668 | |
| 3669 | list_add_tail(&property->head, &dev->mode_config.property_list); |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 3670 | |
| 3671 | WARN_ON(!drm_property_type_valid(property)); |
| 3672 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3673 | return property; |
| 3674 | fail: |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 3675 | kfree(property->values); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3676 | kfree(property); |
| 3677 | return NULL; |
| 3678 | } |
| 3679 | EXPORT_SYMBOL(drm_property_create); |
| 3680 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3681 | /** |
Thierry Reding | 2aa9d2b | 2014-06-26 21:37:20 +0200 | [diff] [blame] | 3682 | * drm_property_create_enum - create a new enumeration property type |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3683 | * @dev: drm device |
| 3684 | * @flags: flags specifying the property type |
| 3685 | * @name: name of the property |
| 3686 | * @props: enumeration lists with property values |
| 3687 | * @num_values: number of pre-defined values |
| 3688 | * |
| 3689 | * This creates a new generic drm property which can then be attached to a drm |
| 3690 | * object with drm_object_attach_property. The returned property object must be |
| 3691 | * freed with drm_property_destroy. |
| 3692 | * |
| 3693 | * Userspace is only allowed to set one of the predefined values for enumeration |
| 3694 | * properties. |
| 3695 | * |
| 3696 | * Returns: |
| 3697 | * A pointer to the newly created property on success, NULL on failure. |
| 3698 | */ |
Sascha Hauer | 4a67d39 | 2012-02-06 10:58:17 +0100 | [diff] [blame] | 3699 | struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, |
| 3700 | const char *name, |
| 3701 | const struct drm_prop_enum_list *props, |
| 3702 | int num_values) |
| 3703 | { |
| 3704 | struct drm_property *property; |
| 3705 | int i, ret; |
| 3706 | |
| 3707 | flags |= DRM_MODE_PROP_ENUM; |
| 3708 | |
| 3709 | property = drm_property_create(dev, flags, name, num_values); |
| 3710 | if (!property) |
| 3711 | return NULL; |
| 3712 | |
| 3713 | for (i = 0; i < num_values; i++) { |
| 3714 | ret = drm_property_add_enum(property, i, |
| 3715 | props[i].type, |
| 3716 | props[i].name); |
| 3717 | if (ret) { |
| 3718 | drm_property_destroy(dev, property); |
| 3719 | return NULL; |
| 3720 | } |
| 3721 | } |
| 3722 | |
| 3723 | return property; |
| 3724 | } |
| 3725 | EXPORT_SYMBOL(drm_property_create_enum); |
| 3726 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3727 | /** |
Thierry Reding | 2aa9d2b | 2014-06-26 21:37:20 +0200 | [diff] [blame] | 3728 | * drm_property_create_bitmask - create a new bitmask property type |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3729 | * @dev: drm device |
| 3730 | * @flags: flags specifying the property type |
| 3731 | * @name: name of the property |
| 3732 | * @props: enumeration lists with property bitflags |
Daniel Vetter | 295ee85 | 2014-07-30 14:23:44 +0200 | [diff] [blame] | 3733 | * @num_props: size of the @props array |
| 3734 | * @supported_bits: bitmask of all supported enumeration values |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3735 | * |
Daniel Vetter | 295ee85 | 2014-07-30 14:23:44 +0200 | [diff] [blame] | 3736 | * This creates a new bitmask drm property which can then be attached to a drm |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3737 | * object with drm_object_attach_property. The returned property object must be |
| 3738 | * freed with drm_property_destroy. |
| 3739 | * |
| 3740 | * Compared to plain enumeration properties userspace is allowed to set any |
| 3741 | * or'ed together combination of the predefined property bitflag values |
| 3742 | * |
| 3743 | * Returns: |
| 3744 | * A pointer to the newly created property on success, NULL on failure. |
| 3745 | */ |
Rob Clark | 49e2754 | 2012-05-17 02:23:26 -0600 | [diff] [blame] | 3746 | struct drm_property *drm_property_create_bitmask(struct drm_device *dev, |
| 3747 | int flags, const char *name, |
| 3748 | const struct drm_prop_enum_list *props, |
Ville Syrjälä | 7689ffb | 2014-07-08 10:31:52 +0530 | [diff] [blame] | 3749 | int num_props, |
| 3750 | uint64_t supported_bits) |
Rob Clark | 49e2754 | 2012-05-17 02:23:26 -0600 | [diff] [blame] | 3751 | { |
| 3752 | struct drm_property *property; |
Ville Syrjälä | 7689ffb | 2014-07-08 10:31:52 +0530 | [diff] [blame] | 3753 | int i, ret, index = 0; |
| 3754 | int num_values = hweight64(supported_bits); |
Rob Clark | 49e2754 | 2012-05-17 02:23:26 -0600 | [diff] [blame] | 3755 | |
| 3756 | flags |= DRM_MODE_PROP_BITMASK; |
| 3757 | |
| 3758 | property = drm_property_create(dev, flags, name, num_values); |
| 3759 | if (!property) |
| 3760 | return NULL; |
Ville Syrjälä | 7689ffb | 2014-07-08 10:31:52 +0530 | [diff] [blame] | 3761 | for (i = 0; i < num_props; i++) { |
| 3762 | if (!(supported_bits & (1ULL << props[i].type))) |
| 3763 | continue; |
Rob Clark | 49e2754 | 2012-05-17 02:23:26 -0600 | [diff] [blame] | 3764 | |
Ville Syrjälä | 7689ffb | 2014-07-08 10:31:52 +0530 | [diff] [blame] | 3765 | if (WARN_ON(index >= num_values)) { |
| 3766 | drm_property_destroy(dev, property); |
| 3767 | return NULL; |
| 3768 | } |
| 3769 | |
| 3770 | ret = drm_property_add_enum(property, index++, |
Rob Clark | 49e2754 | 2012-05-17 02:23:26 -0600 | [diff] [blame] | 3771 | props[i].type, |
| 3772 | props[i].name); |
| 3773 | if (ret) { |
| 3774 | drm_property_destroy(dev, property); |
| 3775 | return NULL; |
| 3776 | } |
| 3777 | } |
| 3778 | |
| 3779 | return property; |
| 3780 | } |
| 3781 | EXPORT_SYMBOL(drm_property_create_bitmask); |
| 3782 | |
Rob Clark | ebc44cf | 2012-09-12 22:22:31 -0500 | [diff] [blame] | 3783 | static struct drm_property *property_create_range(struct drm_device *dev, |
| 3784 | int flags, const char *name, |
| 3785 | uint64_t min, uint64_t max) |
| 3786 | { |
| 3787 | struct drm_property *property; |
| 3788 | |
| 3789 | property = drm_property_create(dev, flags, name, 2); |
| 3790 | if (!property) |
| 3791 | return NULL; |
| 3792 | |
| 3793 | property->values[0] = min; |
| 3794 | property->values[1] = max; |
| 3795 | |
| 3796 | return property; |
| 3797 | } |
| 3798 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3799 | /** |
Daniel Vetter | 960cd9d | 2015-01-21 08:47:38 +0100 | [diff] [blame] | 3800 | * drm_property_create_range - create a new unsigned ranged property type |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3801 | * @dev: drm device |
| 3802 | * @flags: flags specifying the property type |
| 3803 | * @name: name of the property |
| 3804 | * @min: minimum value of the property |
| 3805 | * @max: maximum value of the property |
| 3806 | * |
| 3807 | * This creates a new generic drm property which can then be attached to a drm |
| 3808 | * object with drm_object_attach_property. The returned property object must be |
| 3809 | * freed with drm_property_destroy. |
| 3810 | * |
Daniel Vetter | 960cd9d | 2015-01-21 08:47:38 +0100 | [diff] [blame] | 3811 | * Userspace is allowed to set any unsigned integer value in the (min, max) |
| 3812 | * range inclusive. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3813 | * |
| 3814 | * Returns: |
| 3815 | * A pointer to the newly created property on success, NULL on failure. |
| 3816 | */ |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 3817 | struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, |
| 3818 | const char *name, |
| 3819 | uint64_t min, uint64_t max) |
| 3820 | { |
Rob Clark | ebc44cf | 2012-09-12 22:22:31 -0500 | [diff] [blame] | 3821 | return property_create_range(dev, DRM_MODE_PROP_RANGE | flags, |
| 3822 | name, min, max); |
Sascha Hauer | d9bc3c0 | 2012-02-06 10:58:18 +0100 | [diff] [blame] | 3823 | } |
| 3824 | EXPORT_SYMBOL(drm_property_create_range); |
| 3825 | |
Daniel Vetter | 960cd9d | 2015-01-21 08:47:38 +0100 | [diff] [blame] | 3826 | /** |
| 3827 | * drm_property_create_signed_range - create a new signed ranged property type |
| 3828 | * @dev: drm device |
| 3829 | * @flags: flags specifying the property type |
| 3830 | * @name: name of the property |
| 3831 | * @min: minimum value of the property |
| 3832 | * @max: maximum value of the property |
| 3833 | * |
| 3834 | * This creates a new generic drm property which can then be attached to a drm |
| 3835 | * object with drm_object_attach_property. The returned property object must be |
| 3836 | * freed with drm_property_destroy. |
| 3837 | * |
| 3838 | * Userspace is allowed to set any signed integer value in the (min, max) |
| 3839 | * range inclusive. |
| 3840 | * |
| 3841 | * Returns: |
| 3842 | * A pointer to the newly created property on success, NULL on failure. |
| 3843 | */ |
Rob Clark | ebc44cf | 2012-09-12 22:22:31 -0500 | [diff] [blame] | 3844 | struct drm_property *drm_property_create_signed_range(struct drm_device *dev, |
| 3845 | int flags, const char *name, |
| 3846 | int64_t min, int64_t max) |
| 3847 | { |
| 3848 | return property_create_range(dev, DRM_MODE_PROP_SIGNED_RANGE | flags, |
| 3849 | name, I642U64(min), I642U64(max)); |
| 3850 | } |
| 3851 | EXPORT_SYMBOL(drm_property_create_signed_range); |
| 3852 | |
Daniel Vetter | 960cd9d | 2015-01-21 08:47:38 +0100 | [diff] [blame] | 3853 | /** |
| 3854 | * drm_property_create_object - create a new object property type |
| 3855 | * @dev: drm device |
| 3856 | * @flags: flags specifying the property type |
| 3857 | * @name: name of the property |
| 3858 | * @type: object type from DRM_MODE_OBJECT_* defines |
| 3859 | * |
| 3860 | * This creates a new generic drm property which can then be attached to a drm |
| 3861 | * object with drm_object_attach_property. The returned property object must be |
| 3862 | * freed with drm_property_destroy. |
| 3863 | * |
| 3864 | * Userspace is only allowed to set this to any property value of the given |
| 3865 | * @type. Only useful for atomic properties, which is enforced. |
| 3866 | * |
| 3867 | * Returns: |
| 3868 | * A pointer to the newly created property on success, NULL on failure. |
| 3869 | */ |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 3870 | struct drm_property *drm_property_create_object(struct drm_device *dev, |
| 3871 | int flags, const char *name, uint32_t type) |
| 3872 | { |
| 3873 | struct drm_property *property; |
| 3874 | |
| 3875 | flags |= DRM_MODE_PROP_OBJECT; |
| 3876 | |
Daniel Vetter | 960cd9d | 2015-01-21 08:47:38 +0100 | [diff] [blame] | 3877 | if (WARN_ON(!(flags & DRM_MODE_PROP_ATOMIC))) |
| 3878 | return NULL; |
| 3879 | |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 3880 | property = drm_property_create(dev, flags, name, 1); |
| 3881 | if (!property) |
| 3882 | return NULL; |
| 3883 | |
| 3884 | property->values[0] = type; |
| 3885 | |
| 3886 | return property; |
| 3887 | } |
| 3888 | EXPORT_SYMBOL(drm_property_create_object); |
| 3889 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3890 | /** |
Daniel Vetter | 960cd9d | 2015-01-21 08:47:38 +0100 | [diff] [blame] | 3891 | * drm_property_create_bool - create a new boolean property type |
| 3892 | * @dev: drm device |
| 3893 | * @flags: flags specifying the property type |
| 3894 | * @name: name of the property |
| 3895 | * |
| 3896 | * This creates a new generic drm property which can then be attached to a drm |
| 3897 | * object with drm_object_attach_property. The returned property object must be |
| 3898 | * freed with drm_property_destroy. |
| 3899 | * |
| 3900 | * This is implemented as a ranged property with only {0, 1} as valid values. |
| 3901 | * |
| 3902 | * Returns: |
| 3903 | * A pointer to the newly created property on success, NULL on failure. |
| 3904 | */ |
| 3905 | struct drm_property *drm_property_create_bool(struct drm_device *dev, int flags, |
| 3906 | const char *name) |
| 3907 | { |
| 3908 | return drm_property_create_range(dev, flags, name, 0, 1); |
| 3909 | } |
| 3910 | EXPORT_SYMBOL(drm_property_create_bool); |
| 3911 | |
| 3912 | /** |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3913 | * drm_property_add_enum - add a possible value to an enumeration property |
| 3914 | * @property: enumeration property to change |
| 3915 | * @index: index of the new enumeration |
| 3916 | * @value: value of the new enumeration |
| 3917 | * @name: symbolic name of the new enumeration |
| 3918 | * |
| 3919 | * This functions adds enumerations to a property. |
| 3920 | * |
| 3921 | * It's use is deprecated, drivers should use one of the more specific helpers |
| 3922 | * to directly create the property with all enumerations already attached. |
| 3923 | * |
| 3924 | * Returns: |
| 3925 | * Zero on success, error code on failure. |
| 3926 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3927 | int drm_property_add_enum(struct drm_property *property, int index, |
| 3928 | uint64_t value, const char *name) |
| 3929 | { |
| 3930 | struct drm_property_enum *prop_enum; |
| 3931 | |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 3932 | if (!(drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
| 3933 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK))) |
Rob Clark | 49e2754 | 2012-05-17 02:23:26 -0600 | [diff] [blame] | 3934 | return -EINVAL; |
| 3935 | |
| 3936 | /* |
| 3937 | * Bitmask enum properties have the additional constraint of values |
| 3938 | * from 0 to 63 |
| 3939 | */ |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 3940 | if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK) && |
| 3941 | (value > 63)) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3942 | return -EINVAL; |
| 3943 | |
Daniel Vetter | 3758b34 | 2014-11-19 18:38:10 +0100 | [diff] [blame] | 3944 | if (!list_empty(&property->enum_list)) { |
| 3945 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3946 | if (prop_enum->value == value) { |
| 3947 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
| 3948 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
| 3949 | return 0; |
| 3950 | } |
| 3951 | } |
| 3952 | } |
| 3953 | |
| 3954 | prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); |
| 3955 | if (!prop_enum) |
| 3956 | return -ENOMEM; |
| 3957 | |
| 3958 | strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
| 3959 | prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
| 3960 | prop_enum->value = value; |
| 3961 | |
| 3962 | property->values[index] = value; |
Daniel Vetter | 3758b34 | 2014-11-19 18:38:10 +0100 | [diff] [blame] | 3963 | list_add_tail(&prop_enum->head, &property->enum_list); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3964 | return 0; |
| 3965 | } |
| 3966 | EXPORT_SYMBOL(drm_property_add_enum); |
| 3967 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3968 | /** |
| 3969 | * drm_property_destroy - destroy a drm property |
| 3970 | * @dev: drm device |
| 3971 | * @property: property to destry |
| 3972 | * |
| 3973 | * This function frees a property including any attached resources like |
| 3974 | * enumeration values. |
| 3975 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3976 | void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
| 3977 | { |
| 3978 | struct drm_property_enum *prop_enum, *pt; |
| 3979 | |
Daniel Vetter | 3758b34 | 2014-11-19 18:38:10 +0100 | [diff] [blame] | 3980 | list_for_each_entry_safe(prop_enum, pt, &property->enum_list, head) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 3981 | list_del(&prop_enum->head); |
| 3982 | kfree(prop_enum); |
| 3983 | } |
| 3984 | |
| 3985 | if (property->num_values) |
| 3986 | kfree(property->values); |
| 3987 | drm_mode_object_put(dev, &property->base); |
| 3988 | list_del(&property->head); |
| 3989 | kfree(property); |
| 3990 | } |
| 3991 | EXPORT_SYMBOL(drm_property_destroy); |
| 3992 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 3993 | /** |
| 3994 | * drm_object_attach_property - attach a property to a modeset object |
| 3995 | * @obj: drm modeset object |
| 3996 | * @property: property to attach |
| 3997 | * @init_val: initial value of the property |
| 3998 | * |
| 3999 | * This attaches the given property to the modeset object with the given initial |
| 4000 | * value. Currently this function cannot fail since the properties are stored in |
| 4001 | * a statically sized array. |
| 4002 | */ |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4003 | void drm_object_attach_property(struct drm_mode_object *obj, |
| 4004 | struct drm_property *property, |
| 4005 | uint64_t init_val) |
| 4006 | { |
Paulo Zanoni | 7f88a9b | 2012-05-15 18:09:04 -0300 | [diff] [blame] | 4007 | int count = obj->properties->count; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4008 | |
Paulo Zanoni | 7f88a9b | 2012-05-15 18:09:04 -0300 | [diff] [blame] | 4009 | if (count == DRM_OBJECT_MAX_PROPERTY) { |
| 4010 | WARN(1, "Failed to attach object property (type: 0x%x). Please " |
| 4011 | "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " |
| 4012 | "you see this message on the same object type.\n", |
| 4013 | obj->type); |
| 4014 | return; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4015 | } |
| 4016 | |
Rob Clark | b17cd75 | 2014-12-16 18:05:30 -0500 | [diff] [blame] | 4017 | obj->properties->properties[count] = property; |
Paulo Zanoni | 7f88a9b | 2012-05-15 18:09:04 -0300 | [diff] [blame] | 4018 | obj->properties->values[count] = init_val; |
| 4019 | obj->properties->count++; |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 4020 | if (property->flags & DRM_MODE_PROP_ATOMIC) |
| 4021 | obj->properties->atomic_count++; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4022 | } |
| 4023 | EXPORT_SYMBOL(drm_object_attach_property); |
| 4024 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4025 | /** |
| 4026 | * drm_object_property_set_value - set the value of a property |
| 4027 | * @obj: drm mode object to set property value for |
| 4028 | * @property: property to set |
| 4029 | * @val: value the property should be set to |
| 4030 | * |
| 4031 | * This functions sets a given property on a given object. This function only |
| 4032 | * changes the software state of the property, it does not call into the |
| 4033 | * driver's ->set_property callback. |
| 4034 | * |
| 4035 | * Returns: |
| 4036 | * Zero on success, error code on failure. |
| 4037 | */ |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4038 | int drm_object_property_set_value(struct drm_mode_object *obj, |
| 4039 | struct drm_property *property, uint64_t val) |
| 4040 | { |
| 4041 | int i; |
| 4042 | |
Paulo Zanoni | 7f88a9b | 2012-05-15 18:09:04 -0300 | [diff] [blame] | 4043 | for (i = 0; i < obj->properties->count; i++) { |
Rob Clark | b17cd75 | 2014-12-16 18:05:30 -0500 | [diff] [blame] | 4044 | if (obj->properties->properties[i] == property) { |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4045 | obj->properties->values[i] = val; |
| 4046 | return 0; |
| 4047 | } |
| 4048 | } |
| 4049 | |
| 4050 | return -EINVAL; |
| 4051 | } |
| 4052 | EXPORT_SYMBOL(drm_object_property_set_value); |
| 4053 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4054 | /** |
| 4055 | * drm_object_property_get_value - retrieve the value of a property |
| 4056 | * @obj: drm mode object to get property value from |
| 4057 | * @property: property to retrieve |
| 4058 | * @val: storage for the property value |
| 4059 | * |
| 4060 | * This function retrieves the softare state of the given property for the given |
| 4061 | * property. Since there is no driver callback to retrieve the current property |
| 4062 | * value this might be out of sync with the hardware, depending upon the driver |
| 4063 | * and property. |
| 4064 | * |
| 4065 | * Returns: |
| 4066 | * Zero on success, error code on failure. |
| 4067 | */ |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4068 | int drm_object_property_get_value(struct drm_mode_object *obj, |
| 4069 | struct drm_property *property, uint64_t *val) |
| 4070 | { |
| 4071 | int i; |
| 4072 | |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 4073 | /* read-only properties bypass atomic mechanism and still store |
| 4074 | * their value in obj->properties->values[].. mostly to avoid |
| 4075 | * having to deal w/ EDID and similar props in atomic paths: |
| 4076 | */ |
| 4077 | if (drm_core_check_feature(property->dev, DRIVER_ATOMIC) && |
| 4078 | !(property->flags & DRM_MODE_PROP_IMMUTABLE)) |
| 4079 | return drm_atomic_get_property(obj, property, val); |
| 4080 | |
Paulo Zanoni | 7f88a9b | 2012-05-15 18:09:04 -0300 | [diff] [blame] | 4081 | for (i = 0; i < obj->properties->count; i++) { |
Rob Clark | b17cd75 | 2014-12-16 18:05:30 -0500 | [diff] [blame] | 4082 | if (obj->properties->properties[i] == property) { |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4083 | *val = obj->properties->values[i]; |
| 4084 | return 0; |
| 4085 | } |
| 4086 | } |
| 4087 | |
| 4088 | return -EINVAL; |
| 4089 | } |
| 4090 | EXPORT_SYMBOL(drm_object_property_get_value); |
| 4091 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4092 | /** |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4093 | * drm_mode_getproperty_ioctl - get the property metadata |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4094 | * @dev: DRM device |
| 4095 | * @data: ioctl data |
| 4096 | * @file_priv: DRM file info |
| 4097 | * |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4098 | * This function retrieves the metadata for a given property, like the different |
| 4099 | * possible values for an enum property or the limits for a range property. |
| 4100 | * |
| 4101 | * Blob properties are special |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4102 | * |
| 4103 | * Called by the user via ioctl. |
| 4104 | * |
| 4105 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4106 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4107 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4108 | int drm_mode_getproperty_ioctl(struct drm_device *dev, |
| 4109 | void *data, struct drm_file *file_priv) |
| 4110 | { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4111 | struct drm_mode_get_property *out_resp = data; |
| 4112 | struct drm_property *property; |
| 4113 | int enum_count = 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4114 | int value_count = 0; |
| 4115 | int ret = 0, i; |
| 4116 | int copied; |
| 4117 | struct drm_property_enum *prop_enum; |
| 4118 | struct drm_mode_property_enum __user *enum_ptr; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4119 | uint64_t __user *values_ptr; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4120 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 4121 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 4122 | return -EINVAL; |
| 4123 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 4124 | drm_modeset_lock_all(dev); |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 4125 | property = drm_property_find(dev, out_resp->prop_id); |
| 4126 | if (!property) { |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 4127 | ret = -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4128 | goto done; |
| 4129 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4130 | |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 4131 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
| 4132 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
Daniel Vetter | 3758b34 | 2014-11-19 18:38:10 +0100 | [diff] [blame] | 4133 | list_for_each_entry(prop_enum, &property->enum_list, head) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4134 | enum_count++; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4135 | } |
| 4136 | |
| 4137 | value_count = property->num_values; |
| 4138 | |
| 4139 | strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); |
| 4140 | out_resp->name[DRM_PROP_NAME_LEN-1] = 0; |
| 4141 | out_resp->flags = property->flags; |
| 4142 | |
| 4143 | if ((out_resp->count_values >= value_count) && value_count) { |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 4144 | values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4145 | for (i = 0; i < value_count; i++) { |
| 4146 | if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { |
| 4147 | ret = -EFAULT; |
| 4148 | goto done; |
| 4149 | } |
| 4150 | } |
| 4151 | } |
| 4152 | out_resp->count_values = value_count; |
| 4153 | |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 4154 | if (drm_property_type_is(property, DRM_MODE_PROP_ENUM) || |
| 4155 | drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4156 | if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
| 4157 | copied = 0; |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 4158 | enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; |
Daniel Vetter | 3758b34 | 2014-11-19 18:38:10 +0100 | [diff] [blame] | 4159 | list_for_each_entry(prop_enum, &property->enum_list, head) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4160 | |
| 4161 | if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { |
| 4162 | ret = -EFAULT; |
| 4163 | goto done; |
| 4164 | } |
| 4165 | |
| 4166 | if (copy_to_user(&enum_ptr[copied].name, |
| 4167 | &prop_enum->name, DRM_PROP_NAME_LEN)) { |
| 4168 | ret = -EFAULT; |
| 4169 | goto done; |
| 4170 | } |
| 4171 | copied++; |
| 4172 | } |
| 4173 | } |
| 4174 | out_resp->count_enum_blobs = enum_count; |
| 4175 | } |
| 4176 | |
Daniel Vetter | 3758b34 | 2014-11-19 18:38:10 +0100 | [diff] [blame] | 4177 | /* |
| 4178 | * NOTE: The idea seems to have been to use this to read all the blob |
| 4179 | * property values. But nothing ever added them to the corresponding |
| 4180 | * list, userspace always used the special-purpose get_blob ioctl to |
| 4181 | * read the value for a blob property. It also doesn't make a lot of |
| 4182 | * sense to return values here when everything else is just metadata for |
| 4183 | * the property itself. |
| 4184 | */ |
| 4185 | if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
| 4186 | out_resp->count_enum_blobs = 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4187 | done: |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 4188 | drm_modeset_unlock_all(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4189 | return ret; |
| 4190 | } |
| 4191 | |
Daniel Stone | 99531d9 | 2015-05-22 13:34:49 +0100 | [diff] [blame] | 4192 | /** |
| 4193 | * drm_property_create_blob - Create new blob property |
| 4194 | * |
| 4195 | * Creates a new blob property for a specified DRM device, optionally |
| 4196 | * copying data. |
| 4197 | * |
| 4198 | * @dev: DRM device to create property for |
| 4199 | * @length: Length to allocate for blob data |
| 4200 | * @data: If specified, copies data into blob |
Daniel Stone | 10e8cb7 | 2015-05-22 13:34:50 +0100 | [diff] [blame] | 4201 | * |
| 4202 | * Returns: |
| 4203 | * New blob property with a single reference on success, or an ERR_PTR |
| 4204 | * value on failure. |
Daniel Stone | 99531d9 | 2015-05-22 13:34:49 +0100 | [diff] [blame] | 4205 | */ |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4206 | struct drm_property_blob * |
Thierry Reding | ecbbe59 | 2014-05-13 11:36:13 +0200 | [diff] [blame] | 4207 | drm_property_create_blob(struct drm_device *dev, size_t length, |
Thierry Reding | 12e6cec | 2014-05-13 11:38:36 +0200 | [diff] [blame] | 4208 | const void *data) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4209 | { |
| 4210 | struct drm_property_blob *blob; |
Ville Syrjälä | 6bfc56a | 2012-03-13 12:35:48 +0200 | [diff] [blame] | 4211 | int ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4212 | |
Dan Carpenter | 9ac0934 | 2015-10-29 16:37:54 +0300 | [diff] [blame] | 4213 | if (!length || length > ULONG_MAX - sizeof(struct drm_property_blob)) |
Daniel Stone | 10e8cb7 | 2015-05-22 13:34:50 +0100 | [diff] [blame] | 4214 | return ERR_PTR(-EINVAL); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4215 | |
| 4216 | blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); |
| 4217 | if (!blob) |
Daniel Stone | 10e8cb7 | 2015-05-22 13:34:50 +0100 | [diff] [blame] | 4218 | return ERR_PTR(-ENOMEM); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4219 | |
Daniel Stone | e2f5d2e | 2015-05-22 13:34:51 +0100 | [diff] [blame] | 4220 | /* This must be explicitly initialised, so we can safely call list_del |
| 4221 | * on it in the removal handler, even if it isn't in a file list. */ |
| 4222 | INIT_LIST_HEAD(&blob->head_file); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4223 | blob->length = length; |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4224 | blob->dev = dev; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4225 | |
Daniel Stone | 99531d9 | 2015-05-22 13:34:49 +0100 | [diff] [blame] | 4226 | if (data) |
| 4227 | memcpy(blob->data, data, length); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4228 | |
Daniel Stone | 8fb6e7a | 2015-04-20 19:22:54 +0100 | [diff] [blame] | 4229 | mutex_lock(&dev->mode_config.blob_lock); |
| 4230 | |
| 4231 | ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
| 4232 | if (ret) { |
| 4233 | kfree(blob); |
| 4234 | mutex_unlock(&dev->mode_config.blob_lock); |
Daniel Stone | 10e8cb7 | 2015-05-22 13:34:50 +0100 | [diff] [blame] | 4235 | return ERR_PTR(-EINVAL); |
Daniel Stone | 8fb6e7a | 2015-04-20 19:22:54 +0100 | [diff] [blame] | 4236 | } |
| 4237 | |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4238 | kref_init(&blob->refcount); |
| 4239 | |
Daniel Stone | e2f5d2e | 2015-05-22 13:34:51 +0100 | [diff] [blame] | 4240 | list_add_tail(&blob->head_global, |
| 4241 | &dev->mode_config.property_blob_list); |
Daniel Stone | 8fb6e7a | 2015-04-20 19:22:54 +0100 | [diff] [blame] | 4242 | |
| 4243 | mutex_unlock(&dev->mode_config.blob_lock); |
| 4244 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4245 | return blob; |
| 4246 | } |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4247 | EXPORT_SYMBOL(drm_property_create_blob); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4248 | |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4249 | /** |
| 4250 | * drm_property_free_blob - Blob property destructor |
| 4251 | * |
| 4252 | * Internal free function for blob properties; must not be used directly. |
| 4253 | * |
Daniel Stone | f102c16 | 2015-05-22 13:34:44 +0100 | [diff] [blame] | 4254 | * @kref: Reference |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4255 | */ |
| 4256 | static void drm_property_free_blob(struct kref *kref) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4257 | { |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4258 | struct drm_property_blob *blob = |
| 4259 | container_of(kref, struct drm_property_blob, refcount); |
| 4260 | |
| 4261 | WARN_ON(!mutex_is_locked(&blob->dev->mode_config.blob_lock)); |
| 4262 | |
Daniel Stone | e2f5d2e | 2015-05-22 13:34:51 +0100 | [diff] [blame] | 4263 | list_del(&blob->head_global); |
| 4264 | list_del(&blob->head_file); |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4265 | drm_mode_object_put(blob->dev, &blob->base); |
Daniel Stone | 8fb6e7a | 2015-04-20 19:22:54 +0100 | [diff] [blame] | 4266 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4267 | kfree(blob); |
| 4268 | } |
| 4269 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4270 | /** |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4271 | * drm_property_unreference_blob - Unreference a blob property |
| 4272 | * |
| 4273 | * Drop a reference on a blob property. May free the object. |
| 4274 | * |
Daniel Stone | f102c16 | 2015-05-22 13:34:44 +0100 | [diff] [blame] | 4275 | * @blob: Pointer to blob property |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4276 | */ |
| 4277 | void drm_property_unreference_blob(struct drm_property_blob *blob) |
| 4278 | { |
| 4279 | struct drm_device *dev; |
| 4280 | |
| 4281 | if (!blob) |
| 4282 | return; |
| 4283 | |
| 4284 | dev = blob->dev; |
| 4285 | |
| 4286 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
| 4287 | |
| 4288 | if (kref_put_mutex(&blob->refcount, drm_property_free_blob, |
| 4289 | &dev->mode_config.blob_lock)) |
| 4290 | mutex_unlock(&dev->mode_config.blob_lock); |
| 4291 | else |
| 4292 | might_lock(&dev->mode_config.blob_lock); |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4293 | } |
| 4294 | EXPORT_SYMBOL(drm_property_unreference_blob); |
| 4295 | |
| 4296 | /** |
| 4297 | * drm_property_unreference_blob_locked - Unreference a blob property with blob_lock held |
| 4298 | * |
| 4299 | * Drop a reference on a blob property. May free the object. This must be |
| 4300 | * called with blob_lock held. |
| 4301 | * |
Daniel Stone | f102c16 | 2015-05-22 13:34:44 +0100 | [diff] [blame] | 4302 | * @blob: Pointer to blob property |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4303 | */ |
| 4304 | static void drm_property_unreference_blob_locked(struct drm_property_blob *blob) |
| 4305 | { |
| 4306 | if (!blob) |
| 4307 | return; |
| 4308 | |
| 4309 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
| 4310 | |
| 4311 | kref_put(&blob->refcount, drm_property_free_blob); |
| 4312 | } |
| 4313 | |
| 4314 | /** |
Daniel Stone | e2f5d2e | 2015-05-22 13:34:51 +0100 | [diff] [blame] | 4315 | * drm_property_destroy_user_blobs - destroy all blobs created by this client |
| 4316 | * @dev: DRM device |
| 4317 | * @file_priv: destroy all blobs owned by this file handle |
| 4318 | */ |
| 4319 | void drm_property_destroy_user_blobs(struct drm_device *dev, |
| 4320 | struct drm_file *file_priv) |
| 4321 | { |
| 4322 | struct drm_property_blob *blob, *bt; |
| 4323 | |
| 4324 | mutex_lock(&dev->mode_config.blob_lock); |
| 4325 | |
| 4326 | list_for_each_entry_safe(blob, bt, &file_priv->blobs, head_file) { |
| 4327 | list_del_init(&blob->head_file); |
| 4328 | drm_property_unreference_blob_locked(blob); |
| 4329 | } |
| 4330 | |
| 4331 | mutex_unlock(&dev->mode_config.blob_lock); |
| 4332 | } |
| 4333 | |
| 4334 | /** |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4335 | * drm_property_reference_blob - Take a reference on an existing property |
| 4336 | * |
| 4337 | * Take a new reference on an existing blob property. |
| 4338 | * |
Daniel Stone | f102c16 | 2015-05-22 13:34:44 +0100 | [diff] [blame] | 4339 | * @blob: Pointer to blob property |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4340 | */ |
| 4341 | struct drm_property_blob *drm_property_reference_blob(struct drm_property_blob *blob) |
| 4342 | { |
| 4343 | DRM_DEBUG("%p: blob ID: %d (%d)\n", blob, blob->base.id, atomic_read(&blob->refcount.refcount)); |
| 4344 | kref_get(&blob->refcount); |
| 4345 | return blob; |
| 4346 | } |
| 4347 | EXPORT_SYMBOL(drm_property_reference_blob); |
| 4348 | |
| 4349 | /* |
| 4350 | * Like drm_property_lookup_blob, but does not return an additional reference. |
| 4351 | * Must be called with blob_lock held. |
| 4352 | */ |
| 4353 | static struct drm_property_blob *__drm_property_lookup_blob(struct drm_device *dev, |
| 4354 | uint32_t id) |
| 4355 | { |
| 4356 | struct drm_mode_object *obj = NULL; |
| 4357 | struct drm_property_blob *blob; |
| 4358 | |
| 4359 | WARN_ON(!mutex_is_locked(&dev->mode_config.blob_lock)); |
| 4360 | |
| 4361 | mutex_lock(&dev->mode_config.idr_mutex); |
| 4362 | obj = idr_find(&dev->mode_config.crtc_idr, id); |
| 4363 | if (!obj || (obj->type != DRM_MODE_OBJECT_BLOB) || (obj->id != id)) |
| 4364 | blob = NULL; |
| 4365 | else |
| 4366 | blob = obj_to_blob(obj); |
| 4367 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 4368 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4369 | return blob; |
| 4370 | } |
| 4371 | |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4372 | /** |
| 4373 | * drm_property_lookup_blob - look up a blob property and take a reference |
| 4374 | * @dev: drm device |
| 4375 | * @id: id of the blob property |
| 4376 | * |
| 4377 | * If successful, this takes an additional reference to the blob property. |
| 4378 | * callers need to make sure to eventually unreference the returned property |
| 4379 | * again, using @drm_property_unreference_blob. |
| 4380 | */ |
| 4381 | struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev, |
| 4382 | uint32_t id) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4383 | { |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4384 | struct drm_property_blob *blob; |
| 4385 | |
| 4386 | mutex_lock(&dev->mode_config.blob_lock); |
| 4387 | blob = __drm_property_lookup_blob(dev, id); |
| 4388 | if (blob) { |
| 4389 | if (!kref_get_unless_zero(&blob->refcount)) |
| 4390 | blob = NULL; |
| 4391 | } |
| 4392 | mutex_unlock(&dev->mode_config.blob_lock); |
| 4393 | |
| 4394 | return blob; |
| 4395 | } |
| 4396 | EXPORT_SYMBOL(drm_property_lookup_blob); |
| 4397 | |
| 4398 | /** |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4399 | * drm_property_replace_global_blob - atomically replace existing blob property |
| 4400 | * @dev: drm device |
| 4401 | * @replace: location of blob property pointer to be replaced |
| 4402 | * @length: length of data for new blob, or 0 for no data |
| 4403 | * @data: content for new blob, or NULL for no data |
| 4404 | * @obj_holds_id: optional object for property holding blob ID |
| 4405 | * @prop_holds_id: optional property holding blob ID |
| 4406 | * @return 0 on success or error on failure |
| 4407 | * |
| 4408 | * This function will atomically replace a global property in the blob list, |
| 4409 | * optionally updating a property which holds the ID of that property. It is |
| 4410 | * guaranteed to be atomic: no caller will be allowed to see intermediate |
| 4411 | * results, and either the entire operation will succeed and clean up the |
| 4412 | * previous property, or it will fail and the state will be unchanged. |
| 4413 | * |
| 4414 | * If length is 0 or data is NULL, no new blob will be created, and the holding |
| 4415 | * property, if specified, will be set to 0. |
| 4416 | * |
| 4417 | * Access to the replace pointer is assumed to be protected by the caller, e.g. |
| 4418 | * by holding the relevant modesetting object lock for its parent. |
| 4419 | * |
| 4420 | * For example, a drm_connector has a 'PATH' property, which contains the ID |
| 4421 | * of a blob property with the value of the MST path information. Calling this |
| 4422 | * function with replace pointing to the connector's path_blob_ptr, length and |
| 4423 | * data set for the new path information, obj_holds_id set to the connector's |
| 4424 | * base object, and prop_holds_id set to the path property name, will perform |
| 4425 | * a completely atomic update. The access to path_blob_ptr is protected by the |
| 4426 | * caller holding a lock on the connector. |
| 4427 | */ |
| 4428 | static int drm_property_replace_global_blob(struct drm_device *dev, |
| 4429 | struct drm_property_blob **replace, |
| 4430 | size_t length, |
| 4431 | const void *data, |
| 4432 | struct drm_mode_object *obj_holds_id, |
| 4433 | struct drm_property *prop_holds_id) |
| 4434 | { |
| 4435 | struct drm_property_blob *new_blob = NULL; |
| 4436 | struct drm_property_blob *old_blob = NULL; |
| 4437 | int ret; |
| 4438 | |
| 4439 | WARN_ON(replace == NULL); |
| 4440 | |
| 4441 | old_blob = *replace; |
| 4442 | |
| 4443 | if (length && data) { |
| 4444 | new_blob = drm_property_create_blob(dev, length, data); |
Daniel Stone | 10e8cb7 | 2015-05-22 13:34:50 +0100 | [diff] [blame] | 4445 | if (IS_ERR(new_blob)) |
| 4446 | return PTR_ERR(new_blob); |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4447 | } |
| 4448 | |
| 4449 | /* This does not need to be synchronised with blob_lock, as the |
| 4450 | * get_properties ioctl locks all modesetting objects, and |
| 4451 | * obj_holds_id must be locked before calling here, so we cannot |
| 4452 | * have its value out of sync with the list membership modified |
| 4453 | * below under blob_lock. */ |
| 4454 | if (obj_holds_id) { |
| 4455 | ret = drm_object_property_set_value(obj_holds_id, |
| 4456 | prop_holds_id, |
| 4457 | new_blob ? |
| 4458 | new_blob->base.id : 0); |
| 4459 | if (ret != 0) |
| 4460 | goto err_created; |
| 4461 | } |
| 4462 | |
Markus Elfring | ec53082 | 2015-07-05 21:55:10 +0200 | [diff] [blame] | 4463 | drm_property_unreference_blob(old_blob); |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4464 | *replace = new_blob; |
| 4465 | |
| 4466 | return 0; |
| 4467 | |
| 4468 | err_created: |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4469 | drm_property_unreference_blob(new_blob); |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4470 | return ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4471 | } |
| 4472 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4473 | /** |
| 4474 | * drm_mode_getblob_ioctl - get the contents of a blob property value |
| 4475 | * @dev: DRM device |
| 4476 | * @data: ioctl data |
| 4477 | * @file_priv: DRM file info |
| 4478 | * |
| 4479 | * This function retrieves the contents of a blob property. The value stored in |
| 4480 | * an object's blob property is just a normal modeset object id. |
| 4481 | * |
| 4482 | * Called by the user via ioctl. |
| 4483 | * |
| 4484 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4485 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4486 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4487 | int drm_mode_getblob_ioctl(struct drm_device *dev, |
| 4488 | void *data, struct drm_file *file_priv) |
| 4489 | { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4490 | struct drm_mode_get_blob *out_resp = data; |
| 4491 | struct drm_property_blob *blob; |
| 4492 | int ret = 0; |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 4493 | void __user *blob_ptr; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4494 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 4495 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 4496 | return -EINVAL; |
| 4497 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 4498 | drm_modeset_lock_all(dev); |
Daniel Stone | 8fb6e7a | 2015-04-20 19:22:54 +0100 | [diff] [blame] | 4499 | mutex_lock(&dev->mode_config.blob_lock); |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4500 | blob = __drm_property_lookup_blob(dev, out_resp->blob_id); |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 4501 | if (!blob) { |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 4502 | ret = -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4503 | goto done; |
| 4504 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4505 | |
| 4506 | if (out_resp->length == blob->length) { |
Ville Syrjälä | 81f6c7f | 2011-12-20 00:06:42 +0200 | [diff] [blame] | 4507 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 4508 | if (copy_to_user(blob_ptr, blob->data, blob->length)) { |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4509 | ret = -EFAULT; |
| 4510 | goto done; |
| 4511 | } |
| 4512 | } |
| 4513 | out_resp->length = blob->length; |
| 4514 | |
| 4515 | done: |
Daniel Stone | 8fb6e7a | 2015-04-20 19:22:54 +0100 | [diff] [blame] | 4516 | mutex_unlock(&dev->mode_config.blob_lock); |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 4517 | drm_modeset_unlock_all(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4518 | return ret; |
| 4519 | } |
| 4520 | |
Dave Airlie | cc7096f | 2014-10-22 12:03:04 +1000 | [diff] [blame] | 4521 | /** |
Daniel Stone | e2f5d2e | 2015-05-22 13:34:51 +0100 | [diff] [blame] | 4522 | * drm_mode_createblob_ioctl - create a new blob property |
| 4523 | * @dev: DRM device |
| 4524 | * @data: ioctl data |
| 4525 | * @file_priv: DRM file info |
| 4526 | * |
| 4527 | * This function creates a new blob property with user-defined values. In order |
| 4528 | * to give us sensible validation and checking when creating, rather than at |
| 4529 | * every potential use, we also require a type to be provided upfront. |
| 4530 | * |
| 4531 | * Called by the user via ioctl. |
| 4532 | * |
| 4533 | * Returns: |
| 4534 | * Zero on success, negative errno on failure. |
| 4535 | */ |
| 4536 | int drm_mode_createblob_ioctl(struct drm_device *dev, |
| 4537 | void *data, struct drm_file *file_priv) |
| 4538 | { |
| 4539 | struct drm_mode_create_blob *out_resp = data; |
| 4540 | struct drm_property_blob *blob; |
| 4541 | void __user *blob_ptr; |
| 4542 | int ret = 0; |
| 4543 | |
| 4544 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 4545 | return -EINVAL; |
| 4546 | |
| 4547 | blob = drm_property_create_blob(dev, out_resp->length, NULL); |
| 4548 | if (IS_ERR(blob)) |
| 4549 | return PTR_ERR(blob); |
| 4550 | |
| 4551 | blob_ptr = (void __user *)(unsigned long)out_resp->data; |
| 4552 | if (copy_from_user(blob->data, blob_ptr, out_resp->length)) { |
| 4553 | ret = -EFAULT; |
| 4554 | goto out_blob; |
| 4555 | } |
| 4556 | |
| 4557 | /* Dropping the lock between create_blob and our access here is safe |
| 4558 | * as only the same file_priv can remove the blob; at this point, it is |
| 4559 | * not associated with any file_priv. */ |
| 4560 | mutex_lock(&dev->mode_config.blob_lock); |
| 4561 | out_resp->blob_id = blob->base.id; |
Maneet Singh | 8731b26 | 2015-10-08 10:10:24 -0400 | [diff] [blame] | 4562 | list_add_tail(&blob->head_file, &file_priv->blobs); |
Daniel Stone | e2f5d2e | 2015-05-22 13:34:51 +0100 | [diff] [blame] | 4563 | mutex_unlock(&dev->mode_config.blob_lock); |
| 4564 | |
| 4565 | return 0; |
| 4566 | |
| 4567 | out_blob: |
| 4568 | drm_property_unreference_blob(blob); |
| 4569 | return ret; |
| 4570 | } |
| 4571 | |
| 4572 | /** |
| 4573 | * drm_mode_destroyblob_ioctl - destroy a user blob property |
| 4574 | * @dev: DRM device |
| 4575 | * @data: ioctl data |
| 4576 | * @file_priv: DRM file info |
| 4577 | * |
| 4578 | * Destroy an existing user-defined blob property. |
| 4579 | * |
| 4580 | * Called by the user via ioctl. |
| 4581 | * |
| 4582 | * Returns: |
| 4583 | * Zero on success, negative errno on failure. |
| 4584 | */ |
| 4585 | int drm_mode_destroyblob_ioctl(struct drm_device *dev, |
| 4586 | void *data, struct drm_file *file_priv) |
| 4587 | { |
| 4588 | struct drm_mode_destroy_blob *out_resp = data; |
| 4589 | struct drm_property_blob *blob = NULL, *bt; |
| 4590 | bool found = false; |
| 4591 | int ret = 0; |
| 4592 | |
| 4593 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 4594 | return -EINVAL; |
| 4595 | |
| 4596 | mutex_lock(&dev->mode_config.blob_lock); |
| 4597 | blob = __drm_property_lookup_blob(dev, out_resp->blob_id); |
| 4598 | if (!blob) { |
| 4599 | ret = -ENOENT; |
| 4600 | goto err; |
| 4601 | } |
| 4602 | |
| 4603 | /* Ensure the property was actually created by this user. */ |
| 4604 | list_for_each_entry(bt, &file_priv->blobs, head_file) { |
| 4605 | if (bt == blob) { |
| 4606 | found = true; |
| 4607 | break; |
| 4608 | } |
| 4609 | } |
| 4610 | |
| 4611 | if (!found) { |
| 4612 | ret = -EPERM; |
| 4613 | goto err; |
| 4614 | } |
| 4615 | |
| 4616 | /* We must drop head_file here, because we may not be the last |
| 4617 | * reference on the blob. */ |
| 4618 | list_del_init(&blob->head_file); |
| 4619 | drm_property_unreference_blob_locked(blob); |
| 4620 | mutex_unlock(&dev->mode_config.blob_lock); |
| 4621 | |
| 4622 | return 0; |
| 4623 | |
| 4624 | err: |
| 4625 | mutex_unlock(&dev->mode_config.blob_lock); |
| 4626 | return ret; |
| 4627 | } |
| 4628 | |
| 4629 | /** |
Dave Airlie | cc7096f | 2014-10-22 12:03:04 +1000 | [diff] [blame] | 4630 | * drm_mode_connector_set_path_property - set tile property on connector |
| 4631 | * @connector: connector to set property on. |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4632 | * @path: path to use for property; must not be NULL. |
Dave Airlie | cc7096f | 2014-10-22 12:03:04 +1000 | [diff] [blame] | 4633 | * |
| 4634 | * This creates a property to expose to userspace to specify a |
| 4635 | * connector path. This is mainly used for DisplayPort MST where |
| 4636 | * connectors have a topology and we want to allow userspace to give |
| 4637 | * them more meaningful names. |
| 4638 | * |
| 4639 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4640 | * Zero on success, negative errno on failure. |
Dave Airlie | cc7096f | 2014-10-22 12:03:04 +1000 | [diff] [blame] | 4641 | */ |
Dave Airlie | 43aba7e | 2014-06-05 14:01:31 +1000 | [diff] [blame] | 4642 | int drm_mode_connector_set_path_property(struct drm_connector *connector, |
Thierry Reding | 12e6cec | 2014-05-13 11:38:36 +0200 | [diff] [blame] | 4643 | const char *path) |
Dave Airlie | 43aba7e | 2014-06-05 14:01:31 +1000 | [diff] [blame] | 4644 | { |
| 4645 | struct drm_device *dev = connector->dev; |
Thierry Reding | ecbbe59 | 2014-05-13 11:36:13 +0200 | [diff] [blame] | 4646 | int ret; |
Dave Airlie | 43aba7e | 2014-06-05 14:01:31 +1000 | [diff] [blame] | 4647 | |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4648 | ret = drm_property_replace_global_blob(dev, |
| 4649 | &connector->path_blob_ptr, |
| 4650 | strlen(path) + 1, |
| 4651 | path, |
| 4652 | &connector->base, |
| 4653 | dev->mode_config.path_property); |
Dave Airlie | 43aba7e | 2014-06-05 14:01:31 +1000 | [diff] [blame] | 4654 | return ret; |
| 4655 | } |
| 4656 | EXPORT_SYMBOL(drm_mode_connector_set_path_property); |
| 4657 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4658 | /** |
Dave Airlie | 6f134d7 | 2014-10-20 16:30:50 +1000 | [diff] [blame] | 4659 | * drm_mode_connector_set_tile_property - set tile property on connector |
| 4660 | * @connector: connector to set property on. |
| 4661 | * |
| 4662 | * This looks up the tile information for a connector, and creates a |
| 4663 | * property for userspace to parse if it exists. The property is of |
| 4664 | * the form of 8 integers using ':' as a separator. |
| 4665 | * |
| 4666 | * Returns: |
| 4667 | * Zero on success, errno on failure. |
| 4668 | */ |
| 4669 | int drm_mode_connector_set_tile_property(struct drm_connector *connector) |
| 4670 | { |
| 4671 | struct drm_device *dev = connector->dev; |
Dave Airlie | 6f134d7 | 2014-10-20 16:30:50 +1000 | [diff] [blame] | 4672 | char tile[256]; |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4673 | int ret; |
Dave Airlie | 6f134d7 | 2014-10-20 16:30:50 +1000 | [diff] [blame] | 4674 | |
| 4675 | if (!connector->has_tile) { |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4676 | ret = drm_property_replace_global_blob(dev, |
| 4677 | &connector->tile_blob_ptr, |
| 4678 | 0, |
| 4679 | NULL, |
| 4680 | &connector->base, |
| 4681 | dev->mode_config.tile_property); |
Dave Airlie | 6f134d7 | 2014-10-20 16:30:50 +1000 | [diff] [blame] | 4682 | return ret; |
| 4683 | } |
| 4684 | |
| 4685 | snprintf(tile, 256, "%d:%d:%d:%d:%d:%d:%d:%d", |
| 4686 | connector->tile_group->id, connector->tile_is_single_monitor, |
| 4687 | connector->num_h_tile, connector->num_v_tile, |
| 4688 | connector->tile_h_loc, connector->tile_v_loc, |
| 4689 | connector->tile_h_size, connector->tile_v_size); |
Dave Airlie | 6f134d7 | 2014-10-20 16:30:50 +1000 | [diff] [blame] | 4690 | |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4691 | ret = drm_property_replace_global_blob(dev, |
| 4692 | &connector->tile_blob_ptr, |
| 4693 | strlen(tile) + 1, |
| 4694 | tile, |
| 4695 | &connector->base, |
| 4696 | dev->mode_config.tile_property); |
Dave Airlie | 6f134d7 | 2014-10-20 16:30:50 +1000 | [diff] [blame] | 4697 | return ret; |
| 4698 | } |
| 4699 | EXPORT_SYMBOL(drm_mode_connector_set_tile_property); |
| 4700 | |
| 4701 | /** |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4702 | * drm_mode_connector_update_edid_property - update the edid property of a connector |
| 4703 | * @connector: drm connector |
| 4704 | * @edid: new value of the edid property |
| 4705 | * |
| 4706 | * This function creates a new blob modeset object and assigns its id to the |
| 4707 | * connector's edid property. |
| 4708 | * |
| 4709 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4710 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4711 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4712 | int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
Thierry Reding | 12e6cec | 2014-05-13 11:38:36 +0200 | [diff] [blame] | 4713 | const struct edid *edid) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4714 | { |
| 4715 | struct drm_device *dev = connector->dev; |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4716 | size_t size = 0; |
Thierry Reding | ecbbe59 | 2014-05-13 11:36:13 +0200 | [diff] [blame] | 4717 | int ret; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4718 | |
Thomas Wood | 4cf2b28 | 2014-06-18 17:52:33 +0100 | [diff] [blame] | 4719 | /* ignore requests to set edid when overridden */ |
| 4720 | if (connector->override_edid) |
| 4721 | return 0; |
| 4722 | |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4723 | if (edid) |
Shixin Zeng | e24ff46 | 2015-07-03 08:46:50 +0200 | [diff] [blame] | 4724 | size = EDID_LENGTH * (1 + edid->extensions); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4725 | |
Daniel Stone | d2ed343 | 2015-04-20 19:22:53 +0100 | [diff] [blame] | 4726 | ret = drm_property_replace_global_blob(dev, |
| 4727 | &connector->edid_blob_ptr, |
| 4728 | size, |
| 4729 | edid, |
| 4730 | &connector->base, |
| 4731 | dev->mode_config.edid_property); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4732 | return ret; |
| 4733 | } |
| 4734 | EXPORT_SYMBOL(drm_mode_connector_update_edid_property); |
| 4735 | |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 4736 | /* Some properties could refer to dynamic refcnt'd objects, or things that |
| 4737 | * need special locking to handle lifetime issues (ie. to ensure the prop |
| 4738 | * value doesn't become invalid part way through the property update due to |
| 4739 | * race). The value returned by reference via 'obj' should be passed back |
| 4740 | * to drm_property_change_valid_put() after the property is set (and the |
| 4741 | * object to which the property is attached has a chance to take it's own |
| 4742 | * reference). |
| 4743 | */ |
Rob Clark | d34f20d | 2014-12-18 16:01:56 -0500 | [diff] [blame] | 4744 | bool drm_property_change_valid_get(struct drm_property *property, |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 4745 | uint64_t value, struct drm_mode_object **ref) |
Paulo Zanoni | 26a3481 | 2012-05-15 18:08:59 -0300 | [diff] [blame] | 4746 | { |
Thierry Reding | 2ca651d | 2014-12-10 13:03:39 +0100 | [diff] [blame] | 4747 | int i; |
| 4748 | |
Paulo Zanoni | 26a3481 | 2012-05-15 18:08:59 -0300 | [diff] [blame] | 4749 | if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
| 4750 | return false; |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 4751 | |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 4752 | *ref = NULL; |
| 4753 | |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 4754 | if (drm_property_type_is(property, DRM_MODE_PROP_RANGE)) { |
Paulo Zanoni | 26a3481 | 2012-05-15 18:08:59 -0300 | [diff] [blame] | 4755 | if (value < property->values[0] || value > property->values[1]) |
| 4756 | return false; |
| 4757 | return true; |
Rob Clark | ebc44cf | 2012-09-12 22:22:31 -0500 | [diff] [blame] | 4758 | } else if (drm_property_type_is(property, DRM_MODE_PROP_SIGNED_RANGE)) { |
| 4759 | int64_t svalue = U642I64(value); |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 4760 | |
Rob Clark | ebc44cf | 2012-09-12 22:22:31 -0500 | [diff] [blame] | 4761 | if (svalue < U642I64(property->values[0]) || |
| 4762 | svalue > U642I64(property->values[1])) |
| 4763 | return false; |
| 4764 | return true; |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 4765 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BITMASK)) { |
Ville Syrjälä | 592c20e | 2012-05-24 20:53:58 +0300 | [diff] [blame] | 4766 | uint64_t valid_mask = 0; |
Thierry Reding | 4dfd909 | 2014-12-10 13:03:34 +0100 | [diff] [blame] | 4767 | |
Rob Clark | 49e2754 | 2012-05-17 02:23:26 -0600 | [diff] [blame] | 4768 | for (i = 0; i < property->num_values; i++) |
| 4769 | valid_mask |= (1ULL << property->values[i]); |
| 4770 | return !(value & ~valid_mask); |
Rob Clark | 5ea22f2 | 2014-05-30 11:34:01 -0400 | [diff] [blame] | 4771 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) { |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 4772 | struct drm_property_blob *blob; |
| 4773 | |
| 4774 | if (value == 0) |
| 4775 | return true; |
| 4776 | |
| 4777 | blob = drm_property_lookup_blob(property->dev, value); |
| 4778 | if (blob) { |
| 4779 | *ref = &blob->base; |
| 4780 | return true; |
| 4781 | } else { |
| 4782 | return false; |
| 4783 | } |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 4784 | } else if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
Rob Clark | 98f75de | 2014-05-30 11:37:03 -0400 | [diff] [blame] | 4785 | /* a zero value for an object property translates to null: */ |
| 4786 | if (value == 0) |
| 4787 | return true; |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 4788 | |
| 4789 | /* handle refcnt'd objects specially: */ |
| 4790 | if (property->values[0] == DRM_MODE_OBJECT_FB) { |
| 4791 | struct drm_framebuffer *fb; |
| 4792 | fb = drm_framebuffer_lookup(property->dev, value); |
| 4793 | if (fb) { |
| 4794 | *ref = &fb->base; |
| 4795 | return true; |
| 4796 | } else { |
| 4797 | return false; |
| 4798 | } |
| 4799 | } else { |
| 4800 | return _object_find(property->dev, value, property->values[0]) != NULL; |
| 4801 | } |
Paulo Zanoni | 26a3481 | 2012-05-15 18:08:59 -0300 | [diff] [blame] | 4802 | } |
Thierry Reding | 2ca651d | 2014-12-10 13:03:39 +0100 | [diff] [blame] | 4803 | |
| 4804 | for (i = 0; i < property->num_values; i++) |
| 4805 | if (property->values[i] == value) |
| 4806 | return true; |
| 4807 | return false; |
Paulo Zanoni | 26a3481 | 2012-05-15 18:08:59 -0300 | [diff] [blame] | 4808 | } |
| 4809 | |
Rob Clark | d34f20d | 2014-12-18 16:01:56 -0500 | [diff] [blame] | 4810 | void drm_property_change_valid_put(struct drm_property *property, |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 4811 | struct drm_mode_object *ref) |
| 4812 | { |
| 4813 | if (!ref) |
| 4814 | return; |
| 4815 | |
| 4816 | if (drm_property_type_is(property, DRM_MODE_PROP_OBJECT)) { |
| 4817 | if (property->values[0] == DRM_MODE_OBJECT_FB) |
| 4818 | drm_framebuffer_unreference(obj_to_fb(ref)); |
Daniel Stone | da9b2a3 | 2015-05-25 19:11:49 +0100 | [diff] [blame] | 4819 | } else if (drm_property_type_is(property, DRM_MODE_PROP_BLOB)) |
| 4820 | drm_property_unreference_blob(obj_to_blob(ref)); |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 4821 | } |
| 4822 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4823 | /** |
| 4824 | * drm_mode_connector_property_set_ioctl - set the current value of a connector property |
| 4825 | * @dev: DRM device |
| 4826 | * @data: ioctl data |
| 4827 | * @file_priv: DRM file info |
| 4828 | * |
| 4829 | * This function sets the current value for a connectors's property. It also |
| 4830 | * calls into a driver's ->set_property callback to update the hardware state |
| 4831 | * |
| 4832 | * Called by the user via ioctl. |
| 4833 | * |
| 4834 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4835 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4836 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4837 | int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
| 4838 | void *data, struct drm_file *file_priv) |
| 4839 | { |
Paulo Zanoni | 0057d8d | 2012-05-15 18:09:03 -0300 | [diff] [blame] | 4840 | struct drm_mode_connector_set_property *conn_set_prop = data; |
| 4841 | struct drm_mode_obj_set_property obj_set_prop = { |
| 4842 | .value = conn_set_prop->value, |
| 4843 | .prop_id = conn_set_prop->prop_id, |
| 4844 | .obj_id = conn_set_prop->connector_id, |
| 4845 | .obj_type = DRM_MODE_OBJECT_CONNECTOR |
| 4846 | }; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4847 | |
Paulo Zanoni | 0057d8d | 2012-05-15 18:09:03 -0300 | [diff] [blame] | 4848 | /* It does all the locking and checking we need */ |
| 4849 | return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 4850 | } |
| 4851 | |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4852 | static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, |
| 4853 | struct drm_property *property, |
| 4854 | uint64_t value) |
| 4855 | { |
| 4856 | int ret = -EINVAL; |
| 4857 | struct drm_connector *connector = obj_to_connector(obj); |
| 4858 | |
| 4859 | /* Do DPMS ourselves */ |
| 4860 | if (property == connector->dev->mode_config.dpms_property) { |
Daniel Vetter | 3558c11 | 2015-12-04 09:45:59 +0100 | [diff] [blame] | 4861 | ret = (*connector->funcs->dpms)(connector, (int)value); |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4862 | } else if (connector->funcs->set_property) |
| 4863 | ret = connector->funcs->set_property(connector, property, value); |
| 4864 | |
| 4865 | /* store the property value if successful */ |
| 4866 | if (!ret) |
Rob Clark | 5849556 | 2012-10-11 20:50:56 -0500 | [diff] [blame] | 4867 | drm_object_property_set_value(&connector->base, property, value); |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4868 | return ret; |
| 4869 | } |
| 4870 | |
Paulo Zanoni | bffd9de0 | 2012-05-15 18:09:05 -0300 | [diff] [blame] | 4871 | static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, |
| 4872 | struct drm_property *property, |
| 4873 | uint64_t value) |
| 4874 | { |
| 4875 | int ret = -EINVAL; |
| 4876 | struct drm_crtc *crtc = obj_to_crtc(obj); |
| 4877 | |
| 4878 | if (crtc->funcs->set_property) |
| 4879 | ret = crtc->funcs->set_property(crtc, property, value); |
| 4880 | if (!ret) |
| 4881 | drm_object_property_set_value(obj, property, value); |
| 4882 | |
| 4883 | return ret; |
| 4884 | } |
| 4885 | |
Thomas Wood | 3a5f87c | 2014-08-20 14:45:00 +0100 | [diff] [blame] | 4886 | /** |
| 4887 | * drm_mode_plane_set_obj_prop - set the value of a property |
| 4888 | * @plane: drm plane object to set property value for |
| 4889 | * @property: property to set |
| 4890 | * @value: value the property should be set to |
| 4891 | * |
| 4892 | * This functions sets a given property on a given plane object. This function |
| 4893 | * calls the driver's ->set_property callback and changes the software state of |
| 4894 | * the property if the callback succeeds. |
| 4895 | * |
| 4896 | * Returns: |
| 4897 | * Zero on success, error code on failure. |
| 4898 | */ |
| 4899 | int drm_mode_plane_set_obj_prop(struct drm_plane *plane, |
| 4900 | struct drm_property *property, |
| 4901 | uint64_t value) |
Rob Clark | 4d93914 | 2012-05-17 02:23:27 -0600 | [diff] [blame] | 4902 | { |
| 4903 | int ret = -EINVAL; |
Thomas Wood | 3a5f87c | 2014-08-20 14:45:00 +0100 | [diff] [blame] | 4904 | struct drm_mode_object *obj = &plane->base; |
Rob Clark | 4d93914 | 2012-05-17 02:23:27 -0600 | [diff] [blame] | 4905 | |
| 4906 | if (plane->funcs->set_property) |
| 4907 | ret = plane->funcs->set_property(plane, property, value); |
| 4908 | if (!ret) |
| 4909 | drm_object_property_set_value(obj, property, value); |
| 4910 | |
| 4911 | return ret; |
| 4912 | } |
Thomas Wood | 3a5f87c | 2014-08-20 14:45:00 +0100 | [diff] [blame] | 4913 | EXPORT_SYMBOL(drm_mode_plane_set_obj_prop); |
Rob Clark | 4d93914 | 2012-05-17 02:23:27 -0600 | [diff] [blame] | 4914 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4915 | /** |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4916 | * drm_mode_obj_get_properties_ioctl - get the current value of a object's property |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4917 | * @dev: DRM device |
| 4918 | * @data: ioctl data |
| 4919 | * @file_priv: DRM file info |
| 4920 | * |
| 4921 | * This function retrieves the current value for an object's property. Compared |
| 4922 | * to the connector specific ioctl this one is extended to also work on crtc and |
| 4923 | * plane objects. |
| 4924 | * |
| 4925 | * Called by the user via ioctl. |
| 4926 | * |
| 4927 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4928 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4929 | */ |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4930 | int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, |
| 4931 | struct drm_file *file_priv) |
| 4932 | { |
| 4933 | struct drm_mode_obj_get_properties *arg = data; |
| 4934 | struct drm_mode_object *obj; |
| 4935 | int ret = 0; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4936 | |
| 4937 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 4938 | return -EINVAL; |
| 4939 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 4940 | drm_modeset_lock_all(dev); |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4941 | |
| 4942 | obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); |
| 4943 | if (!obj) { |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 4944 | ret = -ENOENT; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4945 | goto out; |
| 4946 | } |
| 4947 | if (!obj->properties) { |
| 4948 | ret = -EINVAL; |
| 4949 | goto out; |
| 4950 | } |
| 4951 | |
Rob Clark | 88a48e2 | 2014-12-18 16:01:50 -0500 | [diff] [blame] | 4952 | ret = get_properties(obj, file_priv->atomic, |
Rob Clark | 95cbf11 | 2014-12-18 16:01:49 -0500 | [diff] [blame] | 4953 | (uint32_t __user *)(unsigned long)(arg->props_ptr), |
| 4954 | (uint64_t __user *)(unsigned long)(arg->prop_values_ptr), |
| 4955 | &arg->count_props); |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4956 | |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4957 | out: |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 4958 | drm_modeset_unlock_all(dev); |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4959 | return ret; |
| 4960 | } |
| 4961 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4962 | /** |
| 4963 | * drm_mode_obj_set_property_ioctl - set the current value of an object's property |
| 4964 | * @dev: DRM device |
| 4965 | * @data: ioctl data |
| 4966 | * @file_priv: DRM file info |
| 4967 | * |
| 4968 | * This function sets the current value for an object's property. It also calls |
| 4969 | * into a driver's ->set_property callback to update the hardware state. |
| 4970 | * Compared to the connector specific ioctl this one is extended to also work on |
| 4971 | * crtc and plane objects. |
| 4972 | * |
| 4973 | * Called by the user via ioctl. |
| 4974 | * |
| 4975 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 4976 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 4977 | */ |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4978 | int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, |
| 4979 | struct drm_file *file_priv) |
| 4980 | { |
| 4981 | struct drm_mode_obj_set_property *arg = data; |
| 4982 | struct drm_mode_object *arg_obj; |
| 4983 | struct drm_mode_object *prop_obj; |
| 4984 | struct drm_property *property; |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 4985 | int i, ret = -EINVAL; |
| 4986 | struct drm_mode_object *ref; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4987 | |
| 4988 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 4989 | return -EINVAL; |
| 4990 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 4991 | drm_modeset_lock_all(dev); |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4992 | |
| 4993 | arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 4994 | if (!arg_obj) { |
| 4995 | ret = -ENOENT; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4996 | goto out; |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 4997 | } |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 4998 | if (!arg_obj->properties) |
| 4999 | goto out; |
| 5000 | |
Paulo Zanoni | 7f88a9b | 2012-05-15 18:09:04 -0300 | [diff] [blame] | 5001 | for (i = 0; i < arg_obj->properties->count; i++) |
Rob Clark | b17cd75 | 2014-12-16 18:05:30 -0500 | [diff] [blame] | 5002 | if (arg_obj->properties->properties[i]->base.id == arg->prop_id) |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 5003 | break; |
| 5004 | |
Paulo Zanoni | 7f88a9b | 2012-05-15 18:09:04 -0300 | [diff] [blame] | 5005 | if (i == arg_obj->properties->count) |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 5006 | goto out; |
| 5007 | |
| 5008 | prop_obj = drm_mode_object_find(dev, arg->prop_id, |
| 5009 | DRM_MODE_OBJECT_PROPERTY); |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 5010 | if (!prop_obj) { |
| 5011 | ret = -ENOENT; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 5012 | goto out; |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 5013 | } |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 5014 | property = obj_to_property(prop_obj); |
| 5015 | |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 5016 | if (!drm_property_change_valid_get(property, arg->value, &ref)) |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 5017 | goto out; |
| 5018 | |
| 5019 | switch (arg_obj->type) { |
| 5020 | case DRM_MODE_OBJECT_CONNECTOR: |
| 5021 | ret = drm_mode_connector_set_obj_prop(arg_obj, property, |
| 5022 | arg->value); |
| 5023 | break; |
Paulo Zanoni | bffd9de0 | 2012-05-15 18:09:05 -0300 | [diff] [blame] | 5024 | case DRM_MODE_OBJECT_CRTC: |
| 5025 | ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); |
| 5026 | break; |
Rob Clark | 4d93914 | 2012-05-17 02:23:27 -0600 | [diff] [blame] | 5027 | case DRM_MODE_OBJECT_PLANE: |
Thomas Wood | 3a5f87c | 2014-08-20 14:45:00 +0100 | [diff] [blame] | 5028 | ret = drm_mode_plane_set_obj_prop(obj_to_plane(arg_obj), |
| 5029 | property, arg->value); |
Rob Clark | 4d93914 | 2012-05-17 02:23:27 -0600 | [diff] [blame] | 5030 | break; |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 5031 | } |
| 5032 | |
Rob Clark | 3843e71 | 2014-12-16 18:05:29 -0500 | [diff] [blame] | 5033 | drm_property_change_valid_put(property, ref); |
| 5034 | |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 5035 | out: |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 5036 | drm_modeset_unlock_all(dev); |
Paulo Zanoni | c543188 | 2012-05-15 18:09:02 -0300 | [diff] [blame] | 5037 | return ret; |
| 5038 | } |
| 5039 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5040 | /** |
| 5041 | * drm_mode_connector_attach_encoder - attach a connector to an encoder |
| 5042 | * @connector: connector to attach |
| 5043 | * @encoder: encoder to attach @connector to |
| 5044 | * |
| 5045 | * This function links up a connector to an encoder. Note that the routing |
| 5046 | * restrictions between encoders and crtcs are exposed to userspace through the |
| 5047 | * possible_clones and possible_crtcs bitmasks. |
| 5048 | * |
| 5049 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 5050 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5051 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5052 | int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
| 5053 | struct drm_encoder *encoder) |
| 5054 | { |
| 5055 | int i; |
| 5056 | |
Thierry Reding | eb47fe8 | 2015-11-16 18:19:53 +0100 | [diff] [blame^] | 5057 | /* |
| 5058 | * In the past, drivers have attempted to model the static association |
| 5059 | * of connector to encoder in simple connector/encoder devices using a |
| 5060 | * direct assignment of connector->encoder = encoder. This connection |
| 5061 | * is a logical one and the responsibility of the core, so drivers are |
| 5062 | * expected not to mess with this. |
| 5063 | * |
| 5064 | * Note that the error return should've been enough here, but a large |
| 5065 | * majority of drivers ignores the return value, so add in a big WARN |
| 5066 | * to get people's attention. |
| 5067 | */ |
| 5068 | if (WARN_ON(connector->encoder)) |
| 5069 | return -EINVAL; |
| 5070 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5071 | for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
| 5072 | if (connector->encoder_ids[i] == 0) { |
| 5073 | connector->encoder_ids[i] = encoder->base.id; |
| 5074 | return 0; |
| 5075 | } |
| 5076 | } |
| 5077 | return -ENOMEM; |
| 5078 | } |
| 5079 | EXPORT_SYMBOL(drm_mode_connector_attach_encoder); |
| 5080 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5081 | /** |
| 5082 | * drm_mode_crtc_set_gamma_size - set the gamma table size |
| 5083 | * @crtc: CRTC to set the gamma table size for |
| 5084 | * @gamma_size: size of the gamma table |
| 5085 | * |
| 5086 | * Drivers which support gamma tables should set this to the supported gamma |
| 5087 | * table size when initializing the CRTC. Currently the drm core only supports a |
| 5088 | * fixed gamma table size. |
| 5089 | * |
| 5090 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 5091 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5092 | */ |
Sascha Hauer | 4cae5b8 | 2012-02-01 11:38:23 +0100 | [diff] [blame] | 5093 | int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5094 | int gamma_size) |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5095 | { |
| 5096 | crtc->gamma_size = gamma_size; |
| 5097 | |
Thierry Reding | bd3f0ff | 2014-12-10 13:03:35 +0100 | [diff] [blame] | 5098 | crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3, |
| 5099 | GFP_KERNEL); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5100 | if (!crtc->gamma_store) { |
| 5101 | crtc->gamma_size = 0; |
Sascha Hauer | 4cae5b8 | 2012-02-01 11:38:23 +0100 | [diff] [blame] | 5102 | return -ENOMEM; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5103 | } |
| 5104 | |
Sascha Hauer | 4cae5b8 | 2012-02-01 11:38:23 +0100 | [diff] [blame] | 5105 | return 0; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5106 | } |
| 5107 | EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); |
| 5108 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5109 | /** |
| 5110 | * drm_mode_gamma_set_ioctl - set the gamma table |
| 5111 | * @dev: DRM device |
| 5112 | * @data: ioctl data |
| 5113 | * @file_priv: DRM file info |
| 5114 | * |
| 5115 | * Set the gamma table of a CRTC to the one passed in by the user. Userspace can |
| 5116 | * inquire the required gamma table size through drm_mode_gamma_get_ioctl. |
| 5117 | * |
| 5118 | * Called by the user via ioctl. |
| 5119 | * |
| 5120 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 5121 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5122 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5123 | int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
| 5124 | void *data, struct drm_file *file_priv) |
| 5125 | { |
| 5126 | struct drm_mode_crtc_lut *crtc_lut = data; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5127 | struct drm_crtc *crtc; |
| 5128 | void *r_base, *g_base, *b_base; |
| 5129 | int size; |
| 5130 | int ret = 0; |
| 5131 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 5132 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 5133 | return -EINVAL; |
| 5134 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 5135 | drm_modeset_lock_all(dev); |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 5136 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
| 5137 | if (!crtc) { |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 5138 | ret = -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5139 | goto out; |
| 5140 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5141 | |
Laurent Pinchart | ebe0f24 | 2012-05-17 13:27:24 +0200 | [diff] [blame] | 5142 | if (crtc->funcs->gamma_set == NULL) { |
| 5143 | ret = -ENOSYS; |
| 5144 | goto out; |
| 5145 | } |
| 5146 | |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5147 | /* memcpy into gamma store */ |
| 5148 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
| 5149 | ret = -EINVAL; |
| 5150 | goto out; |
| 5151 | } |
| 5152 | |
| 5153 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
| 5154 | r_base = crtc->gamma_store; |
| 5155 | if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { |
| 5156 | ret = -EFAULT; |
| 5157 | goto out; |
| 5158 | } |
| 5159 | |
| 5160 | g_base = r_base + size; |
| 5161 | if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { |
| 5162 | ret = -EFAULT; |
| 5163 | goto out; |
| 5164 | } |
| 5165 | |
| 5166 | b_base = g_base + size; |
| 5167 | if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { |
| 5168 | ret = -EFAULT; |
| 5169 | goto out; |
| 5170 | } |
| 5171 | |
James Simmons | 7203425 | 2010-08-03 01:33:19 +0100 | [diff] [blame] | 5172 | crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5173 | |
| 5174 | out: |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 5175 | drm_modeset_unlock_all(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5176 | return ret; |
| 5177 | |
| 5178 | } |
| 5179 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5180 | /** |
| 5181 | * drm_mode_gamma_get_ioctl - get the gamma table |
| 5182 | * @dev: DRM device |
| 5183 | * @data: ioctl data |
| 5184 | * @file_priv: DRM file info |
| 5185 | * |
| 5186 | * Copy the current gamma table into the storage provided. This also provides |
| 5187 | * the gamma table size the driver expects, which can be used to size the |
| 5188 | * allocated storage. |
| 5189 | * |
| 5190 | * Called by the user via ioctl. |
| 5191 | * |
| 5192 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 5193 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5194 | */ |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5195 | int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
| 5196 | void *data, struct drm_file *file_priv) |
| 5197 | { |
| 5198 | struct drm_mode_crtc_lut *crtc_lut = data; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5199 | struct drm_crtc *crtc; |
| 5200 | void *r_base, *g_base, *b_base; |
| 5201 | int size; |
| 5202 | int ret = 0; |
| 5203 | |
Dave Airlie | fb3b06c | 2011-02-08 13:55:21 +1000 | [diff] [blame] | 5204 | if (!drm_core_check_feature(dev, DRIVER_MODESET)) |
| 5205 | return -EINVAL; |
| 5206 | |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 5207 | drm_modeset_lock_all(dev); |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 5208 | crtc = drm_crtc_find(dev, crtc_lut->crtc_id); |
| 5209 | if (!crtc) { |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 5210 | ret = -ENOENT; |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5211 | goto out; |
| 5212 | } |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5213 | |
| 5214 | /* memcpy into gamma store */ |
| 5215 | if (crtc_lut->gamma_size != crtc->gamma_size) { |
| 5216 | ret = -EINVAL; |
| 5217 | goto out; |
| 5218 | } |
| 5219 | |
| 5220 | size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
| 5221 | r_base = crtc->gamma_store; |
| 5222 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { |
| 5223 | ret = -EFAULT; |
| 5224 | goto out; |
| 5225 | } |
| 5226 | |
| 5227 | g_base = r_base + size; |
| 5228 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { |
| 5229 | ret = -EFAULT; |
| 5230 | goto out; |
| 5231 | } |
| 5232 | |
| 5233 | b_base = g_base + size; |
| 5234 | if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { |
| 5235 | ret = -EFAULT; |
| 5236 | goto out; |
| 5237 | } |
| 5238 | out: |
Daniel Vetter | 8484990 | 2012-12-02 00:28:11 +0100 | [diff] [blame] | 5239 | drm_modeset_unlock_all(dev); |
Dave Airlie | f453ba0 | 2008-11-07 14:05:41 -0800 | [diff] [blame] | 5240 | return ret; |
| 5241 | } |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5242 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5243 | /** |
| 5244 | * drm_mode_page_flip_ioctl - schedule an asynchronous fb update |
| 5245 | * @dev: DRM device |
| 5246 | * @data: ioctl data |
| 5247 | * @file_priv: DRM file info |
| 5248 | * |
| 5249 | * This schedules an asynchronous update on a given CRTC, called page flip. |
| 5250 | * Optionally a drm event is generated to signal the completion of the event. |
| 5251 | * Generic drivers cannot assume that a pageflip with changed framebuffer |
| 5252 | * properties (including driver specific metadata like tiling layout) will work, |
| 5253 | * but some drivers support e.g. pixel format changes through the pageflip |
| 5254 | * ioctl. |
| 5255 | * |
| 5256 | * Called by the user via ioctl. |
| 5257 | * |
| 5258 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 5259 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5260 | */ |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5261 | int drm_mode_page_flip_ioctl(struct drm_device *dev, |
| 5262 | void *data, struct drm_file *file_priv) |
| 5263 | { |
| 5264 | struct drm_mode_crtc_page_flip *page_flip = data; |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5265 | struct drm_crtc *crtc; |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 5266 | struct drm_framebuffer *fb = NULL; |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5267 | struct drm_pending_vblank_event *e = NULL; |
| 5268 | unsigned long flags; |
| 5269 | int ret = -EINVAL; |
| 5270 | |
| 5271 | if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || |
| 5272 | page_flip->reserved != 0) |
| 5273 | return -EINVAL; |
| 5274 | |
Keith Packard | 62f2104 | 2013-07-22 18:50:00 -0700 | [diff] [blame] | 5275 | if ((page_flip->flags & DRM_MODE_PAGE_FLIP_ASYNC) && !dev->mode_config.async_page_flip) |
| 5276 | return -EINVAL; |
| 5277 | |
Rob Clark | a2b34e2 | 2013-10-05 16:36:52 -0400 | [diff] [blame] | 5278 | crtc = drm_crtc_find(dev, page_flip->crtc_id); |
| 5279 | if (!crtc) |
Ville Syrjälä | f27657f | 2013-10-17 13:35:00 +0300 | [diff] [blame] | 5280 | return -ENOENT; |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5281 | |
Daniel Vetter | 4d02e2d | 2014-11-11 10:12:00 +0100 | [diff] [blame] | 5282 | drm_modeset_lock_crtc(crtc, crtc->primary); |
Matt Roper | f4510a2 | 2014-04-01 15:22:40 -0700 | [diff] [blame] | 5283 | if (crtc->primary->fb == NULL) { |
Chris Wilson | 90c1efd | 2010-07-17 20:23:26 +0100 | [diff] [blame] | 5284 | /* The framebuffer is currently unbound, presumably |
| 5285 | * due to a hotplug event, that userspace has not |
| 5286 | * yet discovered. |
| 5287 | */ |
| 5288 | ret = -EBUSY; |
| 5289 | goto out; |
| 5290 | } |
| 5291 | |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5292 | if (crtc->funcs->page_flip == NULL) |
| 5293 | goto out; |
| 5294 | |
Daniel Vetter | 786b99e | 2012-12-02 21:53:40 +0100 | [diff] [blame] | 5295 | fb = drm_framebuffer_lookup(dev, page_flip->fb_id); |
Ville Syrjälä | 37c4e70 | 2013-10-17 13:35:01 +0300 | [diff] [blame] | 5296 | if (!fb) { |
| 5297 | ret = -ENOENT; |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5298 | goto out; |
Ville Syrjälä | 37c4e70 | 2013-10-17 13:35:01 +0300 | [diff] [blame] | 5299 | } |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5300 | |
Ville Syrjälä | 2afa701d | 2015-10-15 20:40:02 +0300 | [diff] [blame] | 5301 | if (crtc->state) { |
| 5302 | const struct drm_plane_state *state = crtc->primary->state; |
| 5303 | |
| 5304 | ret = check_src_coords(state->src_x, state->src_y, |
| 5305 | state->src_w, state->src_h, fb); |
| 5306 | } else { |
| 5307 | ret = drm_crtc_check_viewport(crtc, crtc->x, crtc->y, &crtc->mode, fb); |
| 5308 | } |
Damien Lespiau | c11e928 | 2013-09-25 16:45:30 +0100 | [diff] [blame] | 5309 | if (ret) |
Ville Syrjälä | 5f61bb4 | 2012-03-13 12:35:45 +0200 | [diff] [blame] | 5310 | goto out; |
Ville Syrjälä | 5f61bb4 | 2012-03-13 12:35:45 +0200 | [diff] [blame] | 5311 | |
Matt Roper | f4510a2 | 2014-04-01 15:22:40 -0700 | [diff] [blame] | 5312 | if (crtc->primary->fb->pixel_format != fb->pixel_format) { |
Laurent Pinchart | 909d9cd | 2013-04-22 01:38:46 +0200 | [diff] [blame] | 5313 | DRM_DEBUG_KMS("Page flip is not allowed to change frame buffer format.\n"); |
| 5314 | ret = -EINVAL; |
| 5315 | goto out; |
| 5316 | } |
| 5317 | |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5318 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
| 5319 | ret = -ENOMEM; |
| 5320 | spin_lock_irqsave(&dev->event_lock, flags); |
Thierry Reding | f76511b | 2014-12-10 13:03:40 +0100 | [diff] [blame] | 5321 | if (file_priv->event_space < sizeof(e->event)) { |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5322 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 5323 | goto out; |
| 5324 | } |
Thierry Reding | f76511b | 2014-12-10 13:03:40 +0100 | [diff] [blame] | 5325 | file_priv->event_space -= sizeof(e->event); |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5326 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 5327 | |
Thierry Reding | f76511b | 2014-12-10 13:03:40 +0100 | [diff] [blame] | 5328 | e = kzalloc(sizeof(*e), GFP_KERNEL); |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5329 | if (e == NULL) { |
| 5330 | spin_lock_irqsave(&dev->event_lock, flags); |
Thierry Reding | f76511b | 2014-12-10 13:03:40 +0100 | [diff] [blame] | 5331 | file_priv->event_space += sizeof(e->event); |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5332 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 5333 | goto out; |
| 5334 | } |
| 5335 | |
Jesse Barnes | 7bd4d7b | 2009-11-19 10:50:22 -0800 | [diff] [blame] | 5336 | e->event.base.type = DRM_EVENT_FLIP_COMPLETE; |
Thierry Reding | f76511b | 2014-12-10 13:03:40 +0100 | [diff] [blame] | 5337 | e->event.base.length = sizeof(e->event); |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5338 | e->event.user_data = page_flip->user_data; |
| 5339 | e->base.event = &e->event.base; |
| 5340 | e->base.file_priv = file_priv; |
| 5341 | e->base.destroy = |
| 5342 | (void (*) (struct drm_pending_event *)) kfree; |
| 5343 | } |
| 5344 | |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 5345 | crtc->primary->old_fb = crtc->primary->fb; |
Keith Packard | ed8d197 | 2013-07-22 18:49:58 -0700 | [diff] [blame] | 5346 | ret = crtc->funcs->page_flip(crtc, fb, e, page_flip->flags); |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5347 | if (ret) { |
Joonyoung Shim | aef6a7e | 2012-04-18 13:47:02 +0900 | [diff] [blame] | 5348 | if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { |
| 5349 | spin_lock_irqsave(&dev->event_lock, flags); |
Thierry Reding | f76511b | 2014-12-10 13:03:40 +0100 | [diff] [blame] | 5350 | file_priv->event_space += sizeof(e->event); |
Joonyoung Shim | aef6a7e | 2012-04-18 13:47:02 +0900 | [diff] [blame] | 5351 | spin_unlock_irqrestore(&dev->event_lock, flags); |
| 5352 | kfree(e); |
| 5353 | } |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 5354 | /* Keep the old fb, don't unref it. */ |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 5355 | crtc->primary->old_fb = NULL; |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 5356 | } else { |
Daniel Vetter | 3cb43cc | 2015-07-07 08:43:03 +0200 | [diff] [blame] | 5357 | crtc->primary->fb = fb; |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 5358 | /* Unref only the old framebuffer. */ |
| 5359 | fb = NULL; |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5360 | } |
| 5361 | |
| 5362 | out: |
Daniel Vetter | b0d1232 | 2012-12-11 01:07:12 +0100 | [diff] [blame] | 5363 | if (fb) |
| 5364 | drm_framebuffer_unreference(fb); |
Daniel Vetter | 3d30a59 | 2014-07-27 13:42:42 +0200 | [diff] [blame] | 5365 | if (crtc->primary->old_fb) |
| 5366 | drm_framebuffer_unreference(crtc->primary->old_fb); |
| 5367 | crtc->primary->old_fb = NULL; |
Daniel Vetter | d059f65 | 2014-07-25 18:07:40 +0200 | [diff] [blame] | 5368 | drm_modeset_unlock_crtc(crtc); |
Daniel Vetter | b4d5e7d | 2012-12-11 16:59:31 +0100 | [diff] [blame] | 5369 | |
Kristian Høgsberg | d91d8a3 | 2009-11-17 12:43:55 -0500 | [diff] [blame] | 5370 | return ret; |
| 5371 | } |
Chris Wilson | eb03355 | 2011-01-24 15:11:08 +0000 | [diff] [blame] | 5372 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5373 | /** |
| 5374 | * drm_mode_config_reset - call ->reset callbacks |
| 5375 | * @dev: drm device |
| 5376 | * |
| 5377 | * This functions calls all the crtc's, encoder's and connector's ->reset |
| 5378 | * callback. Drivers can use this in e.g. their driver load or resume code to |
| 5379 | * reset hardware and software state. |
| 5380 | */ |
Chris Wilson | eb03355 | 2011-01-24 15:11:08 +0000 | [diff] [blame] | 5381 | void drm_mode_config_reset(struct drm_device *dev) |
| 5382 | { |
| 5383 | struct drm_crtc *crtc; |
Daniel Vetter | 2a0d7cf | 2014-07-29 15:32:37 +0200 | [diff] [blame] | 5384 | struct drm_plane *plane; |
Chris Wilson | eb03355 | 2011-01-24 15:11:08 +0000 | [diff] [blame] | 5385 | struct drm_encoder *encoder; |
| 5386 | struct drm_connector *connector; |
| 5387 | |
Daniel Vetter | e4f6254 | 2015-07-09 23:44:35 +0200 | [diff] [blame] | 5388 | drm_for_each_plane(plane, dev) |
Daniel Vetter | 2a0d7cf | 2014-07-29 15:32:37 +0200 | [diff] [blame] | 5389 | if (plane->funcs->reset) |
| 5390 | plane->funcs->reset(plane); |
| 5391 | |
Daniel Vetter | e4f6254 | 2015-07-09 23:44:35 +0200 | [diff] [blame] | 5392 | drm_for_each_crtc(crtc, dev) |
Chris Wilson | eb03355 | 2011-01-24 15:11:08 +0000 | [diff] [blame] | 5393 | if (crtc->funcs->reset) |
| 5394 | crtc->funcs->reset(crtc); |
| 5395 | |
Daniel Vetter | e4f6254 | 2015-07-09 23:44:35 +0200 | [diff] [blame] | 5396 | drm_for_each_encoder(encoder, dev) |
Chris Wilson | eb03355 | 2011-01-24 15:11:08 +0000 | [diff] [blame] | 5397 | if (encoder->funcs->reset) |
| 5398 | encoder->funcs->reset(encoder); |
| 5399 | |
Daniel Vetter | f8c2ba3 | 2015-07-29 08:32:43 +0200 | [diff] [blame] | 5400 | mutex_lock(&dev->mode_config.mutex); |
Dave Airlie | 4eebf60 | 2015-08-17 14:13:53 +1000 | [diff] [blame] | 5401 | drm_for_each_connector(connector, dev) |
Chris Wilson | eb03355 | 2011-01-24 15:11:08 +0000 | [diff] [blame] | 5402 | if (connector->funcs->reset) |
| 5403 | connector->funcs->reset(connector); |
Daniel Vetter | f8c2ba3 | 2015-07-29 08:32:43 +0200 | [diff] [blame] | 5404 | mutex_unlock(&dev->mode_config.mutex); |
Chris Wilson | eb03355 | 2011-01-24 15:11:08 +0000 | [diff] [blame] | 5405 | } |
| 5406 | EXPORT_SYMBOL(drm_mode_config_reset); |
Dave Airlie | ff72145b | 2011-02-07 12:16:14 +1000 | [diff] [blame] | 5407 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5408 | /** |
| 5409 | * drm_mode_create_dumb_ioctl - create a dumb backing storage buffer |
| 5410 | * @dev: DRM device |
| 5411 | * @data: ioctl data |
| 5412 | * @file_priv: DRM file info |
| 5413 | * |
| 5414 | * This creates a new dumb buffer in the driver's backing storage manager (GEM, |
| 5415 | * TTM or something else entirely) and returns the resulting buffer handle. This |
| 5416 | * handle can then be wrapped up into a framebuffer modeset object. |
| 5417 | * |
| 5418 | * Note that userspace is not allowed to use such objects for render |
| 5419 | * acceleration - drivers must create their own private ioctls for such a use |
| 5420 | * case. |
| 5421 | * |
| 5422 | * Called by the user via ioctl. |
| 5423 | * |
| 5424 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 5425 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5426 | */ |
Dave Airlie | ff72145b | 2011-02-07 12:16:14 +1000 | [diff] [blame] | 5427 | int drm_mode_create_dumb_ioctl(struct drm_device *dev, |
| 5428 | void *data, struct drm_file *file_priv) |
| 5429 | { |
| 5430 | struct drm_mode_create_dumb *args = data; |
David Herrmann | b28cd41 | 2014-01-20 20:09:55 +0100 | [diff] [blame] | 5431 | u32 cpp, stride, size; |
Dave Airlie | ff72145b | 2011-02-07 12:16:14 +1000 | [diff] [blame] | 5432 | |
| 5433 | if (!dev->driver->dumb_create) |
| 5434 | return -ENOSYS; |
David Herrmann | b28cd41 | 2014-01-20 20:09:55 +0100 | [diff] [blame] | 5435 | if (!args->width || !args->height || !args->bpp) |
| 5436 | return -EINVAL; |
| 5437 | |
| 5438 | /* overflow checks for 32bit size calculations */ |
David Herrmann | 00e7208 | 2014-08-24 19:23:26 +0200 | [diff] [blame] | 5439 | /* NOTE: DIV_ROUND_UP() can overflow */ |
David Herrmann | b28cd41 | 2014-01-20 20:09:55 +0100 | [diff] [blame] | 5440 | cpp = DIV_ROUND_UP(args->bpp, 8); |
David Herrmann | 00e7208 | 2014-08-24 19:23:26 +0200 | [diff] [blame] | 5441 | if (!cpp || cpp > 0xffffffffU / args->width) |
David Herrmann | b28cd41 | 2014-01-20 20:09:55 +0100 | [diff] [blame] | 5442 | return -EINVAL; |
| 5443 | stride = cpp * args->width; |
| 5444 | if (args->height > 0xffffffffU / stride) |
| 5445 | return -EINVAL; |
| 5446 | |
| 5447 | /* test for wrap-around */ |
| 5448 | size = args->height * stride; |
| 5449 | if (PAGE_ALIGN(size) == 0) |
| 5450 | return -EINVAL; |
| 5451 | |
Thierry Reding | f608595 | 2014-11-03 11:14:14 +0100 | [diff] [blame] | 5452 | /* |
| 5453 | * handle, pitch and size are output parameters. Zero them out to |
| 5454 | * prevent drivers from accidentally using uninitialized data. Since |
| 5455 | * not all existing userspace is clearing these fields properly we |
| 5456 | * cannot reject IOCTL with garbage in them. |
| 5457 | */ |
| 5458 | args->handle = 0; |
| 5459 | args->pitch = 0; |
| 5460 | args->size = 0; |
| 5461 | |
Dave Airlie | ff72145b | 2011-02-07 12:16:14 +1000 | [diff] [blame] | 5462 | return dev->driver->dumb_create(file_priv, dev, args); |
| 5463 | } |
| 5464 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5465 | /** |
| 5466 | * drm_mode_mmap_dumb_ioctl - create an mmap offset for a dumb backing storage buffer |
| 5467 | * @dev: DRM device |
| 5468 | * @data: ioctl data |
| 5469 | * @file_priv: DRM file info |
| 5470 | * |
| 5471 | * Allocate an offset in the drm device node's address space to be able to |
| 5472 | * memory map a dumb buffer. |
| 5473 | * |
| 5474 | * Called by the user via ioctl. |
| 5475 | * |
| 5476 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 5477 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5478 | */ |
Dave Airlie | ff72145b | 2011-02-07 12:16:14 +1000 | [diff] [blame] | 5479 | int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, |
| 5480 | void *data, struct drm_file *file_priv) |
| 5481 | { |
| 5482 | struct drm_mode_map_dumb *args = data; |
| 5483 | |
| 5484 | /* call driver ioctl to get mmap offset */ |
| 5485 | if (!dev->driver->dumb_map_offset) |
| 5486 | return -ENOSYS; |
| 5487 | |
| 5488 | return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); |
| 5489 | } |
| 5490 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5491 | /** |
| 5492 | * drm_mode_destroy_dumb_ioctl - destroy a dumb backing strage buffer |
| 5493 | * @dev: DRM device |
| 5494 | * @data: ioctl data |
| 5495 | * @file_priv: DRM file info |
| 5496 | * |
| 5497 | * This destroys the userspace handle for the given dumb backing storage buffer. |
| 5498 | * Since buffer objects must be reference counted in the kernel a buffer object |
| 5499 | * won't be immediately freed if a framebuffer modeset object still uses it. |
| 5500 | * |
| 5501 | * Called by the user via ioctl. |
| 5502 | * |
| 5503 | * Returns: |
Daniel Vetter | 1a49863 | 2014-11-19 18:38:09 +0100 | [diff] [blame] | 5504 | * Zero on success, negative errno on failure. |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5505 | */ |
Dave Airlie | ff72145b | 2011-02-07 12:16:14 +1000 | [diff] [blame] | 5506 | int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, |
| 5507 | void *data, struct drm_file *file_priv) |
| 5508 | { |
| 5509 | struct drm_mode_destroy_dumb *args = data; |
| 5510 | |
| 5511 | if (!dev->driver->dumb_destroy) |
| 5512 | return -ENOSYS; |
| 5513 | |
| 5514 | return dev->driver->dumb_destroy(file_priv, dev, args->handle); |
| 5515 | } |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5516 | |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5517 | /** |
| 5518 | * drm_fb_get_bpp_depth - get the bpp/depth values for format |
| 5519 | * @format: pixel format (DRM_FORMAT_*) |
| 5520 | * @depth: storage for the depth value |
| 5521 | * @bpp: storage for the bpp value |
| 5522 | * |
| 5523 | * This only supports RGB formats here for compat with code that doesn't use |
| 5524 | * pixel formats directly yet. |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5525 | */ |
| 5526 | void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, |
| 5527 | int *bpp) |
| 5528 | { |
| 5529 | switch (format) { |
Ville Syrjälä | c51a6bc | 2013-01-31 19:43:37 +0200 | [diff] [blame] | 5530 | case DRM_FORMAT_C8: |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 5531 | case DRM_FORMAT_RGB332: |
| 5532 | case DRM_FORMAT_BGR233: |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5533 | *depth = 8; |
| 5534 | *bpp = 8; |
| 5535 | break; |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 5536 | case DRM_FORMAT_XRGB1555: |
| 5537 | case DRM_FORMAT_XBGR1555: |
| 5538 | case DRM_FORMAT_RGBX5551: |
| 5539 | case DRM_FORMAT_BGRX5551: |
| 5540 | case DRM_FORMAT_ARGB1555: |
| 5541 | case DRM_FORMAT_ABGR1555: |
| 5542 | case DRM_FORMAT_RGBA5551: |
| 5543 | case DRM_FORMAT_BGRA5551: |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5544 | *depth = 15; |
| 5545 | *bpp = 16; |
| 5546 | break; |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 5547 | case DRM_FORMAT_RGB565: |
| 5548 | case DRM_FORMAT_BGR565: |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5549 | *depth = 16; |
| 5550 | *bpp = 16; |
| 5551 | break; |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 5552 | case DRM_FORMAT_RGB888: |
| 5553 | case DRM_FORMAT_BGR888: |
| 5554 | *depth = 24; |
| 5555 | *bpp = 24; |
| 5556 | break; |
| 5557 | case DRM_FORMAT_XRGB8888: |
| 5558 | case DRM_FORMAT_XBGR8888: |
| 5559 | case DRM_FORMAT_RGBX8888: |
| 5560 | case DRM_FORMAT_BGRX8888: |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5561 | *depth = 24; |
| 5562 | *bpp = 32; |
| 5563 | break; |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 5564 | case DRM_FORMAT_XRGB2101010: |
| 5565 | case DRM_FORMAT_XBGR2101010: |
| 5566 | case DRM_FORMAT_RGBX1010102: |
| 5567 | case DRM_FORMAT_BGRX1010102: |
| 5568 | case DRM_FORMAT_ARGB2101010: |
| 5569 | case DRM_FORMAT_ABGR2101010: |
| 5570 | case DRM_FORMAT_RGBA1010102: |
| 5571 | case DRM_FORMAT_BGRA1010102: |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5572 | *depth = 30; |
| 5573 | *bpp = 32; |
| 5574 | break; |
Ville Syrjälä | 04b3924 | 2011-11-17 18:05:13 +0200 | [diff] [blame] | 5575 | case DRM_FORMAT_ARGB8888: |
| 5576 | case DRM_FORMAT_ABGR8888: |
| 5577 | case DRM_FORMAT_RGBA8888: |
| 5578 | case DRM_FORMAT_BGRA8888: |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5579 | *depth = 32; |
| 5580 | *bpp = 32; |
| 5581 | break; |
| 5582 | default: |
Ville Syrjälä | 23c453a | 2013-10-15 21:06:51 +0300 | [diff] [blame] | 5583 | DRM_DEBUG_KMS("unsupported pixel format %s\n", |
| 5584 | drm_get_format_name(format)); |
Dave Airlie | 248dbc2 | 2011-11-29 20:02:54 +0000 | [diff] [blame] | 5585 | *depth = 0; |
| 5586 | *bpp = 0; |
| 5587 | break; |
| 5588 | } |
| 5589 | } |
| 5590 | EXPORT_SYMBOL(drm_fb_get_bpp_depth); |
Ville Syrjälä | 141670e | 2012-04-05 21:35:15 +0300 | [diff] [blame] | 5591 | |
| 5592 | /** |
| 5593 | * drm_format_num_planes - get the number of planes for format |
| 5594 | * @format: pixel format (DRM_FORMAT_*) |
| 5595 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5596 | * Returns: |
Ville Syrjälä | 141670e | 2012-04-05 21:35:15 +0300 | [diff] [blame] | 5597 | * The number of planes used by the specified pixel format. |
| 5598 | */ |
| 5599 | int drm_format_num_planes(uint32_t format) |
| 5600 | { |
| 5601 | switch (format) { |
| 5602 | case DRM_FORMAT_YUV410: |
| 5603 | case DRM_FORMAT_YVU410: |
| 5604 | case DRM_FORMAT_YUV411: |
| 5605 | case DRM_FORMAT_YVU411: |
| 5606 | case DRM_FORMAT_YUV420: |
| 5607 | case DRM_FORMAT_YVU420: |
| 5608 | case DRM_FORMAT_YUV422: |
| 5609 | case DRM_FORMAT_YVU422: |
| 5610 | case DRM_FORMAT_YUV444: |
| 5611 | case DRM_FORMAT_YVU444: |
| 5612 | return 3; |
| 5613 | case DRM_FORMAT_NV12: |
| 5614 | case DRM_FORMAT_NV21: |
| 5615 | case DRM_FORMAT_NV16: |
| 5616 | case DRM_FORMAT_NV61: |
Laurent Pinchart | ba623f6 | 2012-05-18 23:47:40 +0200 | [diff] [blame] | 5617 | case DRM_FORMAT_NV24: |
| 5618 | case DRM_FORMAT_NV42: |
Ville Syrjälä | 141670e | 2012-04-05 21:35:15 +0300 | [diff] [blame] | 5619 | return 2; |
| 5620 | default: |
| 5621 | return 1; |
| 5622 | } |
| 5623 | } |
| 5624 | EXPORT_SYMBOL(drm_format_num_planes); |
Ville Syrjälä | 5a86bd5 | 2012-04-05 21:35:16 +0300 | [diff] [blame] | 5625 | |
| 5626 | /** |
| 5627 | * drm_format_plane_cpp - determine the bytes per pixel value |
| 5628 | * @format: pixel format (DRM_FORMAT_*) |
| 5629 | * @plane: plane index |
| 5630 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5631 | * Returns: |
Ville Syrjälä | 5a86bd5 | 2012-04-05 21:35:16 +0300 | [diff] [blame] | 5632 | * The bytes per pixel value for the specified plane. |
| 5633 | */ |
| 5634 | int drm_format_plane_cpp(uint32_t format, int plane) |
| 5635 | { |
| 5636 | unsigned int depth; |
| 5637 | int bpp; |
| 5638 | |
| 5639 | if (plane >= drm_format_num_planes(format)) |
| 5640 | return 0; |
| 5641 | |
| 5642 | switch (format) { |
| 5643 | case DRM_FORMAT_YUYV: |
| 5644 | case DRM_FORMAT_YVYU: |
| 5645 | case DRM_FORMAT_UYVY: |
| 5646 | case DRM_FORMAT_VYUY: |
| 5647 | return 2; |
| 5648 | case DRM_FORMAT_NV12: |
| 5649 | case DRM_FORMAT_NV21: |
| 5650 | case DRM_FORMAT_NV16: |
| 5651 | case DRM_FORMAT_NV61: |
Laurent Pinchart | ba623f6 | 2012-05-18 23:47:40 +0200 | [diff] [blame] | 5652 | case DRM_FORMAT_NV24: |
| 5653 | case DRM_FORMAT_NV42: |
Ville Syrjälä | 5a86bd5 | 2012-04-05 21:35:16 +0300 | [diff] [blame] | 5654 | return plane ? 2 : 1; |
| 5655 | case DRM_FORMAT_YUV410: |
| 5656 | case DRM_FORMAT_YVU410: |
| 5657 | case DRM_FORMAT_YUV411: |
| 5658 | case DRM_FORMAT_YVU411: |
| 5659 | case DRM_FORMAT_YUV420: |
| 5660 | case DRM_FORMAT_YVU420: |
| 5661 | case DRM_FORMAT_YUV422: |
| 5662 | case DRM_FORMAT_YVU422: |
| 5663 | case DRM_FORMAT_YUV444: |
| 5664 | case DRM_FORMAT_YVU444: |
| 5665 | return 1; |
| 5666 | default: |
| 5667 | drm_fb_get_bpp_depth(format, &depth, &bpp); |
| 5668 | return bpp >> 3; |
| 5669 | } |
| 5670 | } |
| 5671 | EXPORT_SYMBOL(drm_format_plane_cpp); |
Ville Syrjälä | 01b68b0 | 2012-04-05 21:35:17 +0300 | [diff] [blame] | 5672 | |
| 5673 | /** |
| 5674 | * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor |
| 5675 | * @format: pixel format (DRM_FORMAT_*) |
| 5676 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5677 | * Returns: |
Ville Syrjälä | 01b68b0 | 2012-04-05 21:35:17 +0300 | [diff] [blame] | 5678 | * The horizontal chroma subsampling factor for the |
| 5679 | * specified pixel format. |
| 5680 | */ |
| 5681 | int drm_format_horz_chroma_subsampling(uint32_t format) |
| 5682 | { |
| 5683 | switch (format) { |
| 5684 | case DRM_FORMAT_YUV411: |
| 5685 | case DRM_FORMAT_YVU411: |
| 5686 | case DRM_FORMAT_YUV410: |
| 5687 | case DRM_FORMAT_YVU410: |
| 5688 | return 4; |
| 5689 | case DRM_FORMAT_YUYV: |
| 5690 | case DRM_FORMAT_YVYU: |
| 5691 | case DRM_FORMAT_UYVY: |
| 5692 | case DRM_FORMAT_VYUY: |
| 5693 | case DRM_FORMAT_NV12: |
| 5694 | case DRM_FORMAT_NV21: |
| 5695 | case DRM_FORMAT_NV16: |
| 5696 | case DRM_FORMAT_NV61: |
| 5697 | case DRM_FORMAT_YUV422: |
| 5698 | case DRM_FORMAT_YVU422: |
| 5699 | case DRM_FORMAT_YUV420: |
| 5700 | case DRM_FORMAT_YVU420: |
| 5701 | return 2; |
| 5702 | default: |
| 5703 | return 1; |
| 5704 | } |
| 5705 | } |
| 5706 | EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); |
| 5707 | |
| 5708 | /** |
| 5709 | * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor |
| 5710 | * @format: pixel format (DRM_FORMAT_*) |
| 5711 | * |
Daniel Vetter | c8e32cc | 2014-03-10 21:33:02 +0100 | [diff] [blame] | 5712 | * Returns: |
Ville Syrjälä | 01b68b0 | 2012-04-05 21:35:17 +0300 | [diff] [blame] | 5713 | * The vertical chroma subsampling factor for the |
| 5714 | * specified pixel format. |
| 5715 | */ |
| 5716 | int drm_format_vert_chroma_subsampling(uint32_t format) |
| 5717 | { |
| 5718 | switch (format) { |
| 5719 | case DRM_FORMAT_YUV410: |
| 5720 | case DRM_FORMAT_YVU410: |
| 5721 | return 4; |
| 5722 | case DRM_FORMAT_YUV420: |
| 5723 | case DRM_FORMAT_YVU420: |
| 5724 | case DRM_FORMAT_NV12: |
| 5725 | case DRM_FORMAT_NV21: |
| 5726 | return 2; |
| 5727 | default: |
| 5728 | return 1; |
| 5729 | } |
| 5730 | } |
| 5731 | EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5732 | |
| 5733 | /** |
Ville Syrjälä | 3c9855f | 2014-07-08 10:31:56 +0530 | [diff] [blame] | 5734 | * drm_rotation_simplify() - Try to simplify the rotation |
| 5735 | * @rotation: Rotation to be simplified |
| 5736 | * @supported_rotations: Supported rotations |
| 5737 | * |
| 5738 | * Attempt to simplify the rotation to a form that is supported. |
| 5739 | * Eg. if the hardware supports everything except DRM_REFLECT_X |
| 5740 | * one could call this function like this: |
| 5741 | * |
| 5742 | * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) | |
| 5743 | * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) | |
| 5744 | * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y)); |
| 5745 | * |
| 5746 | * to eliminate the DRM_ROTATE_X flag. Depending on what kind of |
| 5747 | * transforms the hardware supports, this function may not |
| 5748 | * be able to produce a supported transform, so the caller should |
| 5749 | * check the result afterwards. |
| 5750 | */ |
| 5751 | unsigned int drm_rotation_simplify(unsigned int rotation, |
| 5752 | unsigned int supported_rotations) |
| 5753 | { |
| 5754 | if (rotation & ~supported_rotations) { |
| 5755 | rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y); |
Joonas Lahtinen | 14152c8 | 2015-10-01 10:00:58 +0300 | [diff] [blame] | 5756 | rotation = (rotation & DRM_REFLECT_MASK) | |
| 5757 | BIT((ffs(rotation & DRM_ROTATE_MASK) + 1) % 4); |
Ville Syrjälä | 3c9855f | 2014-07-08 10:31:56 +0530 | [diff] [blame] | 5758 | } |
| 5759 | |
| 5760 | return rotation; |
| 5761 | } |
| 5762 | EXPORT_SYMBOL(drm_rotation_simplify); |
| 5763 | |
| 5764 | /** |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5765 | * drm_mode_config_init - initialize DRM mode_configuration structure |
| 5766 | * @dev: DRM device |
| 5767 | * |
| 5768 | * Initialize @dev's mode_config structure, used for tracking the graphics |
| 5769 | * configuration of @dev. |
| 5770 | * |
| 5771 | * Since this initializes the modeset locks, no locking is possible. Which is no |
| 5772 | * problem, since this should happen single threaded at init time. It is the |
| 5773 | * driver's problem to ensure this guarantee. |
| 5774 | * |
| 5775 | */ |
| 5776 | void drm_mode_config_init(struct drm_device *dev) |
| 5777 | { |
| 5778 | mutex_init(&dev->mode_config.mutex); |
Rob Clark | 51fd371 | 2013-11-19 12:10:12 -0500 | [diff] [blame] | 5779 | drm_modeset_lock_init(&dev->mode_config.connection_mutex); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5780 | mutex_init(&dev->mode_config.idr_mutex); |
| 5781 | mutex_init(&dev->mode_config.fb_lock); |
Daniel Stone | 8fb6e7a | 2015-04-20 19:22:54 +0100 | [diff] [blame] | 5782 | mutex_init(&dev->mode_config.blob_lock); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5783 | INIT_LIST_HEAD(&dev->mode_config.fb_list); |
| 5784 | INIT_LIST_HEAD(&dev->mode_config.crtc_list); |
| 5785 | INIT_LIST_HEAD(&dev->mode_config.connector_list); |
| 5786 | INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
| 5787 | INIT_LIST_HEAD(&dev->mode_config.property_list); |
| 5788 | INIT_LIST_HEAD(&dev->mode_config.property_blob_list); |
| 5789 | INIT_LIST_HEAD(&dev->mode_config.plane_list); |
| 5790 | idr_init(&dev->mode_config.crtc_idr); |
Dave Airlie | 138f9eb | 2014-10-20 16:17:17 +1000 | [diff] [blame] | 5791 | idr_init(&dev->mode_config.tile_idr); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5792 | |
| 5793 | drm_modeset_lock_all(dev); |
Rob Clark | 6b4959f | 2014-12-18 16:01:53 -0500 | [diff] [blame] | 5794 | drm_mode_create_standard_properties(dev); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5795 | drm_modeset_unlock_all(dev); |
| 5796 | |
| 5797 | /* Just to be sure */ |
| 5798 | dev->mode_config.num_fb = 0; |
| 5799 | dev->mode_config.num_connector = 0; |
| 5800 | dev->mode_config.num_crtc = 0; |
| 5801 | dev->mode_config.num_encoder = 0; |
Matt Roper | e27dde3 | 2014-04-01 15:22:30 -0700 | [diff] [blame] | 5802 | dev->mode_config.num_overlay_plane = 0; |
| 5803 | dev->mode_config.num_total_plane = 0; |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5804 | } |
| 5805 | EXPORT_SYMBOL(drm_mode_config_init); |
| 5806 | |
| 5807 | /** |
| 5808 | * drm_mode_config_cleanup - free up DRM mode_config info |
| 5809 | * @dev: DRM device |
| 5810 | * |
| 5811 | * Free up all the connectors and CRTCs associated with this DRM device, then |
| 5812 | * free up the framebuffers and associated buffer objects. |
| 5813 | * |
| 5814 | * Note that since this /should/ happen single-threaded at driver/device |
| 5815 | * teardown time, no locking is required. It's the driver's job to ensure that |
| 5816 | * this guarantee actually holds true. |
| 5817 | * |
| 5818 | * FIXME: cleanup any dangling user buffer objects too |
| 5819 | */ |
| 5820 | void drm_mode_config_cleanup(struct drm_device *dev) |
| 5821 | { |
| 5822 | struct drm_connector *connector, *ot; |
| 5823 | struct drm_crtc *crtc, *ct; |
| 5824 | struct drm_encoder *encoder, *enct; |
| 5825 | struct drm_framebuffer *fb, *fbt; |
| 5826 | struct drm_property *property, *pt; |
| 5827 | struct drm_property_blob *blob, *bt; |
| 5828 | struct drm_plane *plane, *plt; |
| 5829 | |
| 5830 | list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, |
| 5831 | head) { |
| 5832 | encoder->funcs->destroy(encoder); |
| 5833 | } |
| 5834 | |
| 5835 | list_for_each_entry_safe(connector, ot, |
| 5836 | &dev->mode_config.connector_list, head) { |
| 5837 | connector->funcs->destroy(connector); |
| 5838 | } |
| 5839 | |
| 5840 | list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, |
| 5841 | head) { |
| 5842 | drm_property_destroy(dev, property); |
| 5843 | } |
| 5844 | |
| 5845 | list_for_each_entry_safe(blob, bt, &dev->mode_config.property_blob_list, |
Daniel Stone | e2f5d2e | 2015-05-22 13:34:51 +0100 | [diff] [blame] | 5846 | head_global) { |
Daniel Stone | 6bcacf5 | 2015-04-20 19:22:55 +0100 | [diff] [blame] | 5847 | drm_property_unreference_blob(blob); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5848 | } |
| 5849 | |
| 5850 | /* |
| 5851 | * Single-threaded teardown context, so it's not required to grab the |
| 5852 | * fb_lock to protect against concurrent fb_list access. Contrary, it |
| 5853 | * would actually deadlock with the drm_framebuffer_cleanup function. |
| 5854 | * |
| 5855 | * Also, if there are any framebuffers left, that's a driver leak now, |
| 5856 | * so politely WARN about this. |
| 5857 | */ |
| 5858 | WARN_ON(!list_empty(&dev->mode_config.fb_list)); |
| 5859 | list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { |
Maarten Lankhorst | c099b55 | 2015-09-09 13:46:21 +0200 | [diff] [blame] | 5860 | drm_framebuffer_free(&fb->refcount); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5861 | } |
| 5862 | |
| 5863 | list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, |
| 5864 | head) { |
| 5865 | plane->funcs->destroy(plane); |
| 5866 | } |
| 5867 | |
| 5868 | list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { |
| 5869 | crtc->funcs->destroy(crtc); |
| 5870 | } |
| 5871 | |
Dave Airlie | 138f9eb | 2014-10-20 16:17:17 +1000 | [diff] [blame] | 5872 | idr_destroy(&dev->mode_config.tile_idr); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5873 | idr_destroy(&dev->mode_config.crtc_idr); |
Rob Clark | 51fd371 | 2013-11-19 12:10:12 -0500 | [diff] [blame] | 5874 | drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |
Laurent Pinchart | 87d24fc | 2013-04-15 15:37:16 +0200 | [diff] [blame] | 5875 | } |
| 5876 | EXPORT_SYMBOL(drm_mode_config_cleanup); |
Ville Syrjälä | c1df5f3 | 2014-07-08 10:31:53 +0530 | [diff] [blame] | 5877 | |
| 5878 | struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev, |
| 5879 | unsigned int supported_rotations) |
| 5880 | { |
| 5881 | static const struct drm_prop_enum_list props[] = { |
| 5882 | { DRM_ROTATE_0, "rotate-0" }, |
| 5883 | { DRM_ROTATE_90, "rotate-90" }, |
| 5884 | { DRM_ROTATE_180, "rotate-180" }, |
| 5885 | { DRM_ROTATE_270, "rotate-270" }, |
| 5886 | { DRM_REFLECT_X, "reflect-x" }, |
| 5887 | { DRM_REFLECT_Y, "reflect-y" }, |
| 5888 | }; |
| 5889 | |
| 5890 | return drm_property_create_bitmask(dev, 0, "rotation", |
| 5891 | props, ARRAY_SIZE(props), |
| 5892 | supported_rotations); |
| 5893 | } |
| 5894 | EXPORT_SYMBOL(drm_mode_create_rotation_property); |
Dave Airlie | 138f9eb | 2014-10-20 16:17:17 +1000 | [diff] [blame] | 5895 | |
| 5896 | /** |
| 5897 | * DOC: Tile group |
| 5898 | * |
| 5899 | * Tile groups are used to represent tiled monitors with a unique |
| 5900 | * integer identifier. Tiled monitors using DisplayID v1.3 have |
| 5901 | * a unique 8-byte handle, we store this in a tile group, so we |
| 5902 | * have a common identifier for all tiles in a monitor group. |
| 5903 | */ |
| 5904 | static void drm_tile_group_free(struct kref *kref) |
| 5905 | { |
| 5906 | struct drm_tile_group *tg = container_of(kref, struct drm_tile_group, refcount); |
| 5907 | struct drm_device *dev = tg->dev; |
| 5908 | mutex_lock(&dev->mode_config.idr_mutex); |
| 5909 | idr_remove(&dev->mode_config.tile_idr, tg->id); |
| 5910 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 5911 | kfree(tg); |
| 5912 | } |
| 5913 | |
| 5914 | /** |
| 5915 | * drm_mode_put_tile_group - drop a reference to a tile group. |
| 5916 | * @dev: DRM device |
| 5917 | * @tg: tile group to drop reference to. |
| 5918 | * |
| 5919 | * drop reference to tile group and free if 0. |
| 5920 | */ |
| 5921 | void drm_mode_put_tile_group(struct drm_device *dev, |
| 5922 | struct drm_tile_group *tg) |
| 5923 | { |
| 5924 | kref_put(&tg->refcount, drm_tile_group_free); |
| 5925 | } |
| 5926 | |
| 5927 | /** |
| 5928 | * drm_mode_get_tile_group - get a reference to an existing tile group |
| 5929 | * @dev: DRM device |
| 5930 | * @topology: 8-bytes unique per monitor. |
| 5931 | * |
| 5932 | * Use the unique bytes to get a reference to an existing tile group. |
| 5933 | * |
| 5934 | * RETURNS: |
| 5935 | * tile group or NULL if not found. |
| 5936 | */ |
| 5937 | struct drm_tile_group *drm_mode_get_tile_group(struct drm_device *dev, |
| 5938 | char topology[8]) |
| 5939 | { |
| 5940 | struct drm_tile_group *tg; |
| 5941 | int id; |
| 5942 | mutex_lock(&dev->mode_config.idr_mutex); |
| 5943 | idr_for_each_entry(&dev->mode_config.tile_idr, tg, id) { |
| 5944 | if (!memcmp(tg->group_data, topology, 8)) { |
| 5945 | if (!kref_get_unless_zero(&tg->refcount)) |
| 5946 | tg = NULL; |
| 5947 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 5948 | return tg; |
| 5949 | } |
| 5950 | } |
| 5951 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 5952 | return NULL; |
| 5953 | } |
Rob Clark | 81ddd1b | 2015-03-27 13:01:52 -0400 | [diff] [blame] | 5954 | EXPORT_SYMBOL(drm_mode_get_tile_group); |
Dave Airlie | 138f9eb | 2014-10-20 16:17:17 +1000 | [diff] [blame] | 5955 | |
| 5956 | /** |
| 5957 | * drm_mode_create_tile_group - create a tile group from a displayid description |
| 5958 | * @dev: DRM device |
| 5959 | * @topology: 8-bytes unique per monitor. |
| 5960 | * |
| 5961 | * Create a tile group for the unique monitor, and get a unique |
| 5962 | * identifier for the tile group. |
| 5963 | * |
| 5964 | * RETURNS: |
| 5965 | * new tile group or error. |
| 5966 | */ |
| 5967 | struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev, |
| 5968 | char topology[8]) |
| 5969 | { |
| 5970 | struct drm_tile_group *tg; |
| 5971 | int ret; |
| 5972 | |
| 5973 | tg = kzalloc(sizeof(*tg), GFP_KERNEL); |
| 5974 | if (!tg) |
| 5975 | return ERR_PTR(-ENOMEM); |
| 5976 | |
| 5977 | kref_init(&tg->refcount); |
| 5978 | memcpy(tg->group_data, topology, 8); |
| 5979 | tg->dev = dev; |
| 5980 | |
| 5981 | mutex_lock(&dev->mode_config.idr_mutex); |
| 5982 | ret = idr_alloc(&dev->mode_config.tile_idr, tg, 1, 0, GFP_KERNEL); |
| 5983 | if (ret >= 0) { |
| 5984 | tg->id = ret; |
| 5985 | } else { |
| 5986 | kfree(tg); |
| 5987 | tg = ERR_PTR(ret); |
| 5988 | } |
| 5989 | |
| 5990 | mutex_unlock(&dev->mode_config.idr_mutex); |
| 5991 | return tg; |
| 5992 | } |
Rob Clark | 81ddd1b | 2015-03-27 13:01:52 -0400 | [diff] [blame] | 5993 | EXPORT_SYMBOL(drm_mode_create_tile_group); |