blob: 2d8766978388d43316263fa542a31971b078b176 [file] [log] [blame]
Jesse Barnes79e53942008-11-07 14:24:08 -08001/*
2 * Copyright © 2007 David Airlie
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * David Airlie
25 */
26
27#include <linux/module.h>
28#include <linux/kernel.h>
29#include <linux/errno.h>
30#include <linux/string.h>
31#include <linux/mm.h>
32#include <linux/tty.h>
Jesse Barnes79e53942008-11-07 14:24:08 -080033#include <linux/sysrq.h>
34#include <linux/delay.h>
35#include <linux/fb.h>
36#include <linux/init.h>
Dave Airlie6a9ee8a2010-02-01 15:38:10 +100037#include <linux/vga_switcheroo.h>
Jesse Barnes79e53942008-11-07 14:24:08 -080038
39#include "drmP.h"
40#include "drm.h"
41#include "drm_crtc.h"
Dave Airlie785b93e2009-08-28 15:46:53 +100042#include "drm_fb_helper.h"
Jesse Barnes79e53942008-11-07 14:24:08 -080043#include "intel_drv.h"
44#include "i915_drm.h"
45#include "i915_drv.h"
46
Jesse Barnes79e53942008-11-07 14:24:08 -080047static struct fb_ops intelfb_ops = {
48 .owner = THIS_MODULE,
Dave Airlie785b93e2009-08-28 15:46:53 +100049 .fb_check_var = drm_fb_helper_check_var,
50 .fb_set_par = drm_fb_helper_set_par,
Jesse Barnes79e53942008-11-07 14:24:08 -080051 .fb_fillrect = cfb_fillrect,
52 .fb_copyarea = cfb_copyarea,
53 .fb_imageblit = cfb_imageblit,
Dave Airlie785b93e2009-08-28 15:46:53 +100054 .fb_pan_display = drm_fb_helper_pan_display,
55 .fb_blank = drm_fb_helper_blank,
Dave Airlie068143d2009-10-05 09:58:02 +100056 .fb_setcmap = drm_fb_helper_setcmap,
Jesse Barnes81255562010-08-02 12:07:50 -070057 .fb_debug_enter = drm_fb_helper_debug_enter,
58 .fb_debug_leave = drm_fb_helper_debug_leave,
Jesse Barnes79e53942008-11-07 14:24:08 -080059};
60
Dave Airlie8be48d92010-03-30 05:34:14 +000061static int intelfb_create(struct intel_fbdev *ifbdev,
62 struct drm_fb_helper_surface_size *sizes)
Jesse Barnes79e53942008-11-07 14:24:08 -080063{
Dave Airlie8be48d92010-03-30 05:34:14 +000064 struct drm_device *dev = ifbdev->helper.dev;
Chris Wilson35c30472010-12-22 14:07:12 +000065 struct drm_i915_private *dev_priv = dev->dev_private;
Jesse Barnes79e53942008-11-07 14:24:08 -080066 struct fb_info *info;
67 struct drm_framebuffer *fb;
Jesse Barnes308e5bc2011-11-14 14:51:28 -080068 struct drm_mode_fb_cmd2 mode_cmd;
Chris Wilson05394f32010-11-08 19:18:58 +000069 struct drm_i915_gem_object *obj;
Jesse Barnes79e53942008-11-07 14:24:08 -080070 struct device *device = &dev->pdev->dev;
James Simmons57084d02010-12-20 19:10:39 +000071 int size, ret;
Jesse Barnes79e53942008-11-07 14:24:08 -080072
Dave Airlieb8c00ac2009-10-06 13:54:01 +100073 /* we don't do packed 24bpp */
Dave Airlie38651672010-03-30 05:34:13 +000074 if (sizes->surface_bpp == 24)
75 sizes->surface_bpp = 32;
Dave Airlieb8c00ac2009-10-06 13:54:01 +100076
Dave Airlie38651672010-03-30 05:34:13 +000077 mode_cmd.width = sizes->surface_width;
78 mode_cmd.height = sizes->surface_height;
Jesse Barnes79e53942008-11-07 14:24:08 -080079
Jesse Barnes308e5bc2011-11-14 14:51:28 -080080 mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
81 8), 64);
82 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
83 sizes->surface_depth);
Jesse Barnes79e53942008-11-07 14:24:08 -080084
Jesse Barnes308e5bc2011-11-14 14:51:28 -080085 size = mode_cmd.pitches[0] * mode_cmd.height;
Jesse Barnes79e53942008-11-07 14:24:08 -080086 size = ALIGN(size, PAGE_SIZE);
Chris Wilson05394f32010-11-08 19:18:58 +000087 obj = i915_gem_alloc_object(dev, size);
88 if (!obj) {
Keith Packard1ae8c0a2009-06-28 15:42:17 -070089 DRM_ERROR("failed to allocate framebuffer\n");
Jesse Barnes79e53942008-11-07 14:24:08 -080090 ret = -ENOMEM;
91 goto out;
92 }
Jesse Barnes79e53942008-11-07 14:24:08 -080093
94 mutex_lock(&dev->struct_mutex);
95
Chris Wilson72133422010-09-13 23:56:38 +010096 /* Flush everything out, we'll be doing GTT only from now on */
Chris Wilson05394f32010-11-08 19:18:58 +000097 ret = intel_pin_and_fence_fb_obj(dev, obj, false);
Jesse Barnes79e53942008-11-07 14:24:08 -080098 if (ret) {
99 DRM_ERROR("failed to pin fb: %d\n", ret);
100 goto out_unref;
101 }
102
Dave Airlie8be48d92010-03-30 05:34:14 +0000103 info = framebuffer_alloc(0, device);
Jesse Barnes79e53942008-11-07 14:24:08 -0800104 if (!info) {
105 ret = -ENOMEM;
Chris Wilsonb4476f52009-02-11 14:26:36 +0000106 goto out_unpin;
Jesse Barnes79e53942008-11-07 14:24:08 -0800107 }
108
Dave Airlie8be48d92010-03-30 05:34:14 +0000109 info->par = ifbdev;
Jesse Barnes79e53942008-11-07 14:24:08 -0800110
Chris Wilson05394f32010-11-08 19:18:58 +0000111 ret = intel_framebuffer_init(dev, &ifbdev->ifb, &mode_cmd, obj);
Chris Wilsoncce13ff2010-08-08 13:36:38 +0100112 if (ret)
113 goto out_unpin;
Jesse Barnes79e53942008-11-07 14:24:08 -0800114
Dave Airlie38651672010-03-30 05:34:13 +0000115 fb = &ifbdev->ifb.base;
116
117 ifbdev->helper.fb = fb;
118 ifbdev->helper.fbdev = info;
Dave Airlie785b93e2009-08-28 15:46:53 +1000119
Jesse Barnes79e53942008-11-07 14:24:08 -0800120 strcpy(info->fix.id, "inteldrmfb");
Jesse Barnes79e53942008-11-07 14:24:08 -0800121
Jesse Barnes8fd4bd22010-06-23 12:56:12 -0700122 info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
Jesse Barnes79e53942008-11-07 14:24:08 -0800123 info->fbops = &intelfb_ops;
124
Chris Wilson35c30472010-12-22 14:07:12 +0000125 ret = fb_alloc_cmap(&info->cmap, 256, 0);
126 if (ret) {
127 ret = -ENOMEM;
128 goto out_unpin;
129 }
Dave Airlie4410f392009-06-16 15:34:38 -0700130 /* setup aperture base/size for vesafb takeover */
Marcin Slusarz1471ca92010-05-16 17:27:03 +0200131 info->apertures = alloc_apertures(1);
132 if (!info->apertures) {
133 ret = -ENOMEM;
134 goto out_unpin;
135 }
136 info->apertures->ranges[0].base = dev->mode_config.fb_base;
Chris Wilson35c30472010-12-22 14:07:12 +0000137 info->apertures->ranges[0].size =
138 dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
Dave Airlie4410f392009-06-16 15:34:38 -0700139
Chris Wilson05394f32010-11-08 19:18:58 +0000140 info->fix.smem_start = dev->mode_config.fb_base + obj->gtt_offset;
Jesse Barnes79e53942008-11-07 14:24:08 -0800141 info->fix.smem_len = size;
142
Chris Wilson05394f32010-11-08 19:18:58 +0000143 info->screen_base = ioremap_wc(dev->agp->base + obj->gtt_offset, size);
Jesse Barnes79e53942008-11-07 14:24:08 -0800144 if (!info->screen_base) {
145 ret = -ENOSPC;
Chris Wilsonb4476f52009-02-11 14:26:36 +0000146 goto out_unpin;
Jesse Barnes79e53942008-11-07 14:24:08 -0800147 }
148 info->screen_size = size;
149
150// memset(info->screen_base, 0, size);
151
Ville Syrjälä01f2c772011-12-20 00:06:49 +0200152 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
Dave Airlie38651672010-03-30 05:34:13 +0000153 drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
Jesse Barnes79e53942008-11-07 14:24:08 -0800154
Sascha Hauerfb2a99e2012-02-06 10:58:19 +0100155 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
Jesse Barnes79e53942008-11-07 14:24:08 -0800156
Zhao Yakui28c97732009-10-09 11:39:41 +0800157 DRM_DEBUG_KMS("allocated %dx%d fb: 0x%08x, bo %p\n",
Dave Airlie8be48d92010-03-30 05:34:14 +0000158 fb->width, fb->height,
Chris Wilson05394f32010-11-08 19:18:58 +0000159 obj->gtt_offset, obj);
Jesse Barnes79e53942008-11-07 14:24:08 -0800160
Jesse Barnes79e53942008-11-07 14:24:08 -0800161
162 mutex_unlock(&dev->struct_mutex);
Dave Airlie6a9ee8a2010-02-01 15:38:10 +1000163 vga_switcheroo_client_fb_set(dev->pdev, info);
Jesse Barnes79e53942008-11-07 14:24:08 -0800164 return 0;
165
Chris Wilsonb4476f52009-02-11 14:26:36 +0000166out_unpin:
Chris Wilson05394f32010-11-08 19:18:58 +0000167 i915_gem_object_unpin(obj);
Jesse Barnes79e53942008-11-07 14:24:08 -0800168out_unref:
Chris Wilson05394f32010-11-08 19:18:58 +0000169 drm_gem_object_unreference(&obj->base);
Jesse Barnes79e53942008-11-07 14:24:08 -0800170 mutex_unlock(&dev->struct_mutex);
171out:
172 return ret;
173}
174
Dave Airlie8be48d92010-03-30 05:34:14 +0000175static int intel_fb_find_or_create_single(struct drm_fb_helper *helper,
176 struct drm_fb_helper_surface_size *sizes)
Jesse Barnes79e53942008-11-07 14:24:08 -0800177{
Dave Airlie8be48d92010-03-30 05:34:14 +0000178 struct intel_fbdev *ifbdev = (struct intel_fbdev *)helper;
Dave Airlie38651672010-03-30 05:34:13 +0000179 int new_fb = 0;
Jesse Barnes79e53942008-11-07 14:24:08 -0800180 int ret;
181
Dave Airlie8be48d92010-03-30 05:34:14 +0000182 if (!helper->fb) {
183 ret = intelfb_create(ifbdev, sizes);
Dave Airlie38651672010-03-30 05:34:13 +0000184 if (ret)
185 return ret;
Dave Airlie38651672010-03-30 05:34:13 +0000186 new_fb = 1;
Dave Airlie38651672010-03-30 05:34:13 +0000187 }
Dave Airlie38651672010-03-30 05:34:13 +0000188 return new_fb;
Jesse Barnes79e53942008-11-07 14:24:08 -0800189}
Jesse Barnes79e53942008-11-07 14:24:08 -0800190
Dave Airlie4abe3522010-03-30 05:34:18 +0000191static struct drm_fb_helper_funcs intel_fb_helper_funcs = {
192 .gamma_set = intel_crtc_fb_gamma_set,
193 .gamma_get = intel_crtc_fb_gamma_get,
194 .fb_probe = intel_fb_find_or_create_single,
195};
196
Chris Wilson7b4f3992010-10-04 15:33:04 +0100197static void intel_fbdev_destroy(struct drm_device *dev,
198 struct intel_fbdev *ifbdev)
Jesse Barnes79e53942008-11-07 14:24:08 -0800199{
200 struct fb_info *info;
Dave Airlie38651672010-03-30 05:34:13 +0000201 struct intel_framebuffer *ifb = &ifbdev->ifb;
Jesse Barnes79e53942008-11-07 14:24:08 -0800202
Dave Airlie8be48d92010-03-30 05:34:14 +0000203 if (ifbdev->helper.fbdev) {
204 info = ifbdev->helper.fbdev;
Jesse Barnes79e53942008-11-07 14:24:08 -0800205 unregister_framebuffer(info);
206 iounmap(info->screen_base);
Dave Airlie4abe3522010-03-30 05:34:18 +0000207 if (info->cmap.len)
208 fb_dealloc_cmap(&info->cmap);
Jesse Barnes79e53942008-11-07 14:24:08 -0800209 framebuffer_release(info);
210 }
211
Dave Airlie4abe3522010-03-30 05:34:18 +0000212 drm_fb_helper_fini(&ifbdev->helper);
Jesse Barnes79e53942008-11-07 14:24:08 -0800213
Dave Airlie38651672010-03-30 05:34:13 +0000214 drm_framebuffer_cleanup(&ifb->base);
Dave Airlie29d08b32010-09-27 16:17:17 +1000215 if (ifb->obj) {
Chris Wilson05394f32010-11-08 19:18:58 +0000216 drm_gem_object_unreference_unlocked(&ifb->obj->base);
Dave Airliedab8dcf2010-10-07 14:01:17 +1000217 ifb->obj = NULL;
Dave Airlie29d08b32010-09-27 16:17:17 +1000218 }
Jesse Barnes79e53942008-11-07 14:24:08 -0800219}
Dave Airlie38651672010-03-30 05:34:13 +0000220
221int intel_fbdev_init(struct drm_device *dev)
222{
Dave Airlie8be48d92010-03-30 05:34:14 +0000223 struct intel_fbdev *ifbdev;
224 drm_i915_private_t *dev_priv = dev->dev_private;
Chris Wilson5a793952010-06-06 10:50:03 +0100225 int ret;
Dave Airlie8be48d92010-03-30 05:34:14 +0000226
227 ifbdev = kzalloc(sizeof(struct intel_fbdev), GFP_KERNEL);
228 if (!ifbdev)
229 return -ENOMEM;
230
231 dev_priv->fbdev = ifbdev;
Dave Airlie4abe3522010-03-30 05:34:18 +0000232 ifbdev->helper.funcs = &intel_fb_helper_funcs;
Dave Airlie8be48d92010-03-30 05:34:14 +0000233
Chris Wilson5a793952010-06-06 10:50:03 +0100234 ret = drm_fb_helper_init(dev, &ifbdev->helper,
235 dev_priv->num_pipe,
236 INTELFB_CONN_LIMIT);
237 if (ret) {
238 kfree(ifbdev);
239 return ret;
240 }
Dave Airlie4abe3522010-03-30 05:34:18 +0000241
Dave Airlie0b4c0f32010-03-30 05:34:15 +0000242 drm_fb_helper_single_add_all_connectors(&ifbdev->helper);
Dave Airlie4abe3522010-03-30 05:34:18 +0000243 drm_fb_helper_initial_config(&ifbdev->helper, 32);
Dave Airlie38651672010-03-30 05:34:13 +0000244 return 0;
245}
246
247void intel_fbdev_fini(struct drm_device *dev)
248{
249 drm_i915_private_t *dev_priv = dev->dev_private;
Dave Airlie8be48d92010-03-30 05:34:14 +0000250 if (!dev_priv->fbdev)
251 return;
252
Dave Airlie38651672010-03-30 05:34:13 +0000253 intel_fbdev_destroy(dev, dev_priv->fbdev);
Dave Airlie8be48d92010-03-30 05:34:14 +0000254 kfree(dev_priv->fbdev);
Dave Airlie38651672010-03-30 05:34:13 +0000255 dev_priv->fbdev = NULL;
256}
Jesse Barnes79e53942008-11-07 14:24:08 -0800257MODULE_LICENSE("GPL and additional rights");
Dave Airlieeb1f8e42010-05-07 06:42:51 +0000258
259void intel_fb_output_poll_changed(struct drm_device *dev)
260{
261 drm_i915_private_t *dev_priv = dev->dev_private;
262 drm_fb_helper_hotplug_event(&dev_priv->fbdev->helper);
263}
Dave Airliee8e7a2b2011-04-21 22:18:32 +0100264
265void intel_fb_restore_mode(struct drm_device *dev)
266{
267 int ret;
268 drm_i915_private_t *dev_priv = dev->dev_private;
Jesse Barnesb840d907f2011-12-13 13:19:38 -0800269 struct drm_mode_config *config = &dev->mode_config;
270 struct drm_plane *plane;
Dave Airliee8e7a2b2011-04-21 22:18:32 +0100271
272 ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
273 if (ret)
274 DRM_DEBUG("failed to restore crtc mode\n");
Jesse Barnesb840d907f2011-12-13 13:19:38 -0800275
276 /* Be sure to shut off any planes that may be active */
277 list_for_each_entry(plane, &config->plane_list, head)
278 plane->funcs->disable_plane(plane);
Dave Airliee8e7a2b2011-04-21 22:18:32 +0100279}