Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* mga_dma.c -- DMA support for mga g200/g400 -*- linux-c -*- |
| 2 | * Created: Mon Dec 13 01:50:01 1999 by jhartmann@precisioninsight.com |
| 3 | * |
| 4 | * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. |
| 5 | * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. |
| 6 | * All Rights Reserved. |
| 7 | * |
| 8 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 9 | * copy of this software and associated documentation files (the "Software"), |
| 10 | * to deal in the Software without restriction, including without limitation |
| 11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 12 | * and/or sell copies of the Software, and to permit persons to whom the |
| 13 | * Software is furnished to do so, subject to the following conditions: |
| 14 | * |
| 15 | * The above copyright notice and this permission notice (including the next |
| 16 | * paragraph) shall be included in all copies or substantial portions of the |
| 17 | * Software. |
| 18 | * |
| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 20 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 22 | * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 23 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 24 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 25 | * DEALINGS IN THE SOFTWARE. |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 26 | */ |
| 27 | |
| 28 | /** |
| 29 | * \file mga_dma.c |
| 30 | * DMA support for MGA G200 / G400. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 31 | * |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 32 | * \author Rickard E. (Rik) Faith <faith@valinux.com> |
| 33 | * \author Jeff Hartmann <jhartmann@valinux.com> |
| 34 | * \author Keith Whitwell <keith@tungstengraphics.com> |
| 35 | * \author Gareth Hughes <gareth@valinux.com> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | */ |
| 37 | |
| 38 | #include "drmP.h" |
| 39 | #include "drm.h" |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 40 | #include "drm_sarea.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | #include "mga_drm.h" |
| 42 | #include "mga_drv.h" |
| 43 | |
| 44 | #define MGA_DEFAULT_USEC_TIMEOUT 10000 |
| 45 | #define MGA_FREELIST_DEBUG 0 |
| 46 | |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 47 | #define MINIMAL_CLEANUP 0 |
| 48 | #define FULL_CLEANUP 1 |
Dave Airlie | eddca55 | 2007-07-11 16:09:54 +1000 | [diff] [blame] | 49 | static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | /* ================================================================ |
| 52 | * Engine control |
| 53 | */ |
| 54 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 55 | int mga_do_wait_for_idle(drm_mga_private_t *dev_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | { |
| 57 | u32 status = 0; |
| 58 | int i; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 59 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 60 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 61 | for (i = 0; i < dev_priv->usec_timeout; i++) { |
| 62 | status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK; |
| 63 | if (status == MGA_ENDPRDMASTS) { |
| 64 | MGA_WRITE8(MGA_CRTC_INDEX, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | return 0; |
| 66 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 67 | DRM_UDELAY(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 68 | } |
| 69 | |
| 70 | #if MGA_DMA_DEBUG |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 71 | DRM_ERROR("failed!\n"); |
| 72 | DRM_INFO(" status=0x%08x\n", status); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 73 | #endif |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 74 | return -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 75 | } |
| 76 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 77 | static int mga_do_dma_reset(drm_mga_private_t *dev_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | { |
| 79 | drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; |
| 80 | drm_mga_primary_buffer_t *primary = &dev_priv->prim; |
| 81 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 82 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | |
| 84 | /* The primary DMA stream should look like new right about now. |
| 85 | */ |
| 86 | primary->tail = 0; |
| 87 | primary->space = primary->size; |
| 88 | primary->last_flush = 0; |
| 89 | |
| 90 | sarea_priv->last_wrap = 0; |
| 91 | |
| 92 | /* FIXME: Reset counters, buffer ages etc... |
| 93 | */ |
| 94 | |
| 95 | /* FIXME: What else do we need to reinitialize? WARP stuff? |
| 96 | */ |
| 97 | |
| 98 | return 0; |
| 99 | } |
| 100 | |
| 101 | /* ================================================================ |
| 102 | * Primary DMA stream |
| 103 | */ |
| 104 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 105 | void mga_do_dma_flush(drm_mga_private_t *dev_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | { |
| 107 | drm_mga_primary_buffer_t *primary = &dev_priv->prim; |
| 108 | u32 head, tail; |
| 109 | u32 status = 0; |
| 110 | int i; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 111 | DMA_LOCALS; |
| 112 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 113 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 114 | /* We need to wait so that we can do an safe flush */ |
| 115 | for (i = 0; i < dev_priv->usec_timeout; i++) { |
| 116 | status = MGA_READ(MGA_STATUS) & MGA_ENGINE_IDLE_MASK; |
| 117 | if (status == MGA_ENDPRDMASTS) |
| 118 | break; |
| 119 | DRM_UDELAY(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | } |
| 121 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 122 | if (primary->tail == primary->last_flush) { |
| 123 | DRM_DEBUG(" bailing out...\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 124 | return; |
| 125 | } |
| 126 | |
| 127 | tail = primary->tail + dev_priv->primary->offset; |
| 128 | |
| 129 | /* We need to pad the stream between flushes, as the card |
| 130 | * actually (partially?) reads the first of these commands. |
| 131 | * See page 4-16 in the G400 manual, middle of the page or so. |
| 132 | */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 133 | BEGIN_DMA(1); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 135 | DMA_BLOCK(MGA_DMAPAD, 0x00000000, |
| 136 | MGA_DMAPAD, 0x00000000, |
| 137 | MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | |
| 139 | ADVANCE_DMA(); |
| 140 | |
| 141 | primary->last_flush = primary->tail; |
| 142 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 143 | head = MGA_READ(MGA_PRIMADDRESS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 145 | if (head <= tail) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | primary->space = primary->size - primary->tail; |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 147 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | primary->space = head - tail; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
Benjamin Herrenschmidt | 41c2e75 | 2009-02-02 16:55:47 +1100 | [diff] [blame] | 150 | DRM_DEBUG(" head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset)); |
| 151 | DRM_DEBUG(" tail = 0x%06lx\n", (unsigned long)(tail - dev_priv->primary->offset)); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 152 | DRM_DEBUG(" space = 0x%06x\n", primary->space); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 153 | |
| 154 | mga_flush_write_combine(); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 155 | MGA_WRITE(MGA_PRIMEND, tail | dev_priv->dma_access); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 156 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 157 | DRM_DEBUG("done.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | } |
| 159 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 160 | void mga_do_dma_wrap_start(drm_mga_private_t *dev_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 161 | { |
| 162 | drm_mga_primary_buffer_t *primary = &dev_priv->prim; |
| 163 | u32 head, tail; |
| 164 | DMA_LOCALS; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 165 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | |
| 167 | BEGIN_DMA_WRAP(); |
| 168 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 169 | DMA_BLOCK(MGA_DMAPAD, 0x00000000, |
| 170 | MGA_DMAPAD, 0x00000000, |
| 171 | MGA_DMAPAD, 0x00000000, MGA_DMAPAD, 0x00000000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
| 173 | ADVANCE_DMA(); |
| 174 | |
| 175 | tail = primary->tail + dev_priv->primary->offset; |
| 176 | |
| 177 | primary->tail = 0; |
| 178 | primary->last_flush = 0; |
| 179 | primary->last_wrap++; |
| 180 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 181 | head = MGA_READ(MGA_PRIMADDRESS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 182 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 183 | if (head == dev_priv->primary->offset) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 184 | primary->space = primary->size; |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 185 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 186 | primary->space = head - dev_priv->primary->offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | |
Benjamin Herrenschmidt | 41c2e75 | 2009-02-02 16:55:47 +1100 | [diff] [blame] | 188 | DRM_DEBUG(" head = 0x%06lx\n", (unsigned long)(head - dev_priv->primary->offset)); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 189 | DRM_DEBUG(" tail = 0x%06x\n", primary->tail); |
| 190 | DRM_DEBUG(" wrap = %d\n", primary->last_wrap); |
| 191 | DRM_DEBUG(" space = 0x%06x\n", primary->space); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | |
| 193 | mga_flush_write_combine(); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 194 | MGA_WRITE(MGA_PRIMEND, tail | dev_priv->dma_access); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 195 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 196 | set_bit(0, &primary->wrapped); |
| 197 | DRM_DEBUG("done.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 198 | } |
| 199 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 200 | void mga_do_dma_wrap_end(drm_mga_private_t *dev_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 201 | { |
| 202 | drm_mga_primary_buffer_t *primary = &dev_priv->prim; |
| 203 | drm_mga_sarea_t *sarea_priv = dev_priv->sarea_priv; |
| 204 | u32 head = dev_priv->primary->offset; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 205 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | |
| 207 | sarea_priv->last_wrap++; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 208 | DRM_DEBUG(" wrap = %d\n", sarea_priv->last_wrap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 209 | |
| 210 | mga_flush_write_combine(); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 211 | MGA_WRITE(MGA_PRIMADDRESS, head | MGA_DMA_GENERAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 212 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 213 | clear_bit(0, &primary->wrapped); |
| 214 | DRM_DEBUG("done.\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 215 | } |
| 216 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | /* ================================================================ |
| 218 | * Freelist management |
| 219 | */ |
| 220 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 221 | #define MGA_BUFFER_USED (~0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 222 | #define MGA_BUFFER_FREE 0 |
| 223 | |
| 224 | #if MGA_FREELIST_DEBUG |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 225 | static void mga_freelist_print(struct drm_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | { |
| 227 | drm_mga_private_t *dev_priv = dev->dev_private; |
| 228 | drm_mga_freelist_t *entry; |
| 229 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 230 | DRM_INFO("\n"); |
| 231 | DRM_INFO("current dispatch: last=0x%x done=0x%x\n", |
| 232 | dev_priv->sarea_priv->last_dispatch, |
| 233 | (unsigned int)(MGA_READ(MGA_PRIMADDRESS) - |
| 234 | dev_priv->primary->offset)); |
| 235 | DRM_INFO("current freelist:\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 237 | for (entry = dev_priv->head->next; entry; entry = entry->next) { |
| 238 | DRM_INFO(" %p idx=%2d age=0x%x 0x%06lx\n", |
| 239 | entry, entry->buf->idx, entry->age.head, |
Benjamin Herrenschmidt | 41c2e75 | 2009-02-02 16:55:47 +1100 | [diff] [blame] | 240 | (unsigned long)(entry->age.head - dev_priv->primary->offset)); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 242 | DRM_INFO("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 243 | } |
| 244 | #endif |
| 245 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 246 | static int mga_freelist_init(struct drm_device *dev, drm_mga_private_t *dev_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | { |
Dave Airlie | cdd55a2 | 2007-07-11 16:32:08 +1000 | [diff] [blame] | 248 | struct drm_device_dma *dma = dev->dma; |
Dave Airlie | 056219e | 2007-07-11 16:17:42 +1000 | [diff] [blame] | 249 | struct drm_buf *buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 250 | drm_mga_buf_priv_t *buf_priv; |
| 251 | drm_mga_freelist_t *entry; |
| 252 | int i; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 253 | DRM_DEBUG("count=%d\n", dma->buf_count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 254 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 255 | dev_priv->head = kzalloc(sizeof(drm_mga_freelist_t), GFP_KERNEL); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 256 | if (dev_priv->head == NULL) |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 257 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 258 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 259 | SET_AGE(&dev_priv->head->age, MGA_BUFFER_USED, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 260 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 261 | for (i = 0; i < dma->buf_count; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 262 | buf = dma->buflist[i]; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 263 | buf_priv = buf->dev_private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 264 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 265 | entry = kzalloc(sizeof(drm_mga_freelist_t), GFP_KERNEL); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 266 | if (entry == NULL) |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 267 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 268 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 269 | entry->next = dev_priv->head->next; |
| 270 | entry->prev = dev_priv->head; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 271 | SET_AGE(&entry->age, MGA_BUFFER_FREE, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 272 | entry->buf = buf; |
| 273 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 274 | if (dev_priv->head->next != NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 275 | dev_priv->head->next->prev = entry; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 276 | if (entry->next == NULL) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | dev_priv->tail = entry; |
| 278 | |
| 279 | buf_priv->list_entry = entry; |
| 280 | buf_priv->discard = 0; |
| 281 | buf_priv->dispatched = 0; |
| 282 | |
| 283 | dev_priv->head->next = entry; |
| 284 | } |
| 285 | |
| 286 | return 0; |
| 287 | } |
| 288 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 289 | static void mga_freelist_cleanup(struct drm_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 290 | { |
| 291 | drm_mga_private_t *dev_priv = dev->dev_private; |
| 292 | drm_mga_freelist_t *entry; |
| 293 | drm_mga_freelist_t *next; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 294 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 295 | |
| 296 | entry = dev_priv->head; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 297 | while (entry) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 298 | next = entry->next; |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 299 | kfree(entry); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | entry = next; |
| 301 | } |
| 302 | |
| 303 | dev_priv->head = dev_priv->tail = NULL; |
| 304 | } |
| 305 | |
| 306 | #if 0 |
| 307 | /* FIXME: Still needed? |
| 308 | */ |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 309 | static void mga_freelist_reset(struct drm_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | { |
Dave Airlie | cdd55a2 | 2007-07-11 16:32:08 +1000 | [diff] [blame] | 311 | struct drm_device_dma *dma = dev->dma; |
Dave Airlie | 056219e | 2007-07-11 16:17:42 +1000 | [diff] [blame] | 312 | struct drm_buf *buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | drm_mga_buf_priv_t *buf_priv; |
| 314 | int i; |
| 315 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 316 | for (i = 0; i < dma->buf_count; i++) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 317 | buf = dma->buflist[i]; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 318 | buf_priv = buf->dev_private; |
| 319 | SET_AGE(&buf_priv->list_entry->age, MGA_BUFFER_FREE, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 320 | } |
| 321 | } |
| 322 | #endif |
| 323 | |
Dave Airlie | 056219e | 2007-07-11 16:17:42 +1000 | [diff] [blame] | 324 | static struct drm_buf *mga_freelist_get(struct drm_device * dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | { |
| 326 | drm_mga_private_t *dev_priv = dev->dev_private; |
| 327 | drm_mga_freelist_t *next; |
| 328 | drm_mga_freelist_t *prev; |
| 329 | drm_mga_freelist_t *tail = dev_priv->tail; |
| 330 | u32 head, wrap; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 331 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 332 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 333 | head = MGA_READ(MGA_PRIMADDRESS); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 334 | wrap = dev_priv->sarea_priv->last_wrap; |
| 335 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 336 | DRM_DEBUG(" tail=0x%06lx %d\n", |
| 337 | tail->age.head ? |
Benjamin Herrenschmidt | 41c2e75 | 2009-02-02 16:55:47 +1100 | [diff] [blame] | 338 | (unsigned long)(tail->age.head - dev_priv->primary->offset) : 0, |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 339 | tail->age.wrap); |
| 340 | DRM_DEBUG(" head=0x%06lx %d\n", |
Benjamin Herrenschmidt | 41c2e75 | 2009-02-02 16:55:47 +1100 | [diff] [blame] | 341 | (unsigned long)(head - dev_priv->primary->offset), wrap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 343 | if (TEST_AGE(&tail->age, head, wrap)) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 344 | prev = dev_priv->tail->prev; |
| 345 | next = dev_priv->tail; |
| 346 | prev->next = NULL; |
| 347 | next->prev = next->next = NULL; |
| 348 | dev_priv->tail = prev; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 349 | SET_AGE(&next->age, MGA_BUFFER_USED, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | return next->buf; |
| 351 | } |
| 352 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 353 | DRM_DEBUG("returning NULL!\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 354 | return NULL; |
| 355 | } |
| 356 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 357 | int mga_freelist_put(struct drm_device *dev, struct drm_buf *buf) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | { |
| 359 | drm_mga_private_t *dev_priv = dev->dev_private; |
| 360 | drm_mga_buf_priv_t *buf_priv = buf->dev_private; |
| 361 | drm_mga_freelist_t *head, *entry, *prev; |
| 362 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 363 | DRM_DEBUG("age=0x%06lx wrap=%d\n", |
Benjamin Herrenschmidt | 41c2e75 | 2009-02-02 16:55:47 +1100 | [diff] [blame] | 364 | (unsigned long)(buf_priv->list_entry->age.head - |
| 365 | dev_priv->primary->offset), |
| 366 | buf_priv->list_entry->age.wrap); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | |
| 368 | entry = buf_priv->list_entry; |
| 369 | head = dev_priv->head; |
| 370 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 371 | if (buf_priv->list_entry->age.head == MGA_BUFFER_USED) { |
| 372 | SET_AGE(&entry->age, MGA_BUFFER_FREE, 0); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | prev = dev_priv->tail; |
| 374 | prev->next = entry; |
| 375 | entry->prev = prev; |
| 376 | entry->next = NULL; |
| 377 | } else { |
| 378 | prev = head->next; |
| 379 | head->next = entry; |
| 380 | prev->prev = entry; |
| 381 | entry->prev = head; |
| 382 | entry->next = prev; |
| 383 | } |
| 384 | |
| 385 | return 0; |
| 386 | } |
| 387 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 388 | /* ================================================================ |
| 389 | * DMA initialization, cleanup |
| 390 | */ |
| 391 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 392 | int mga_driver_load(struct drm_device *dev, unsigned long flags) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 393 | { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 394 | drm_mga_private_t *dev_priv; |
Keith Packard | 5244021 | 2008-11-18 09:30:25 -0800 | [diff] [blame] | 395 | int ret; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 396 | |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 397 | dev_priv = kzalloc(sizeof(drm_mga_private_t), GFP_KERNEL); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 398 | if (!dev_priv) |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 399 | return -ENOMEM; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 400 | |
| 401 | dev->dev_private = (void *)dev_priv; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 402 | |
| 403 | dev_priv->usec_timeout = MGA_DEFAULT_USEC_TIMEOUT; |
| 404 | dev_priv->chipset = flags; |
| 405 | |
Jordan Crouse | 01d73a6 | 2010-05-27 13:40:24 -0600 | [diff] [blame] | 406 | dev_priv->mmio_base = pci_resource_start(dev->pdev, 1); |
| 407 | dev_priv->mmio_size = pci_resource_len(dev->pdev, 1); |
Dave Airlie | 22eae94 | 2005-11-10 22:16:34 +1100 | [diff] [blame] | 408 | |
| 409 | dev->counters += 3; |
| 410 | dev->types[6] = _DRM_STAT_IRQ; |
| 411 | dev->types[7] = _DRM_STAT_PRIMARY; |
| 412 | dev->types[8] = _DRM_STAT_SECONDARY; |
| 413 | |
Keith Packard | 5244021 | 2008-11-18 09:30:25 -0800 | [diff] [blame] | 414 | ret = drm_vblank_init(dev, 1); |
| 415 | |
| 416 | if (ret) { |
| 417 | (void) mga_driver_unload(dev); |
| 418 | return ret; |
| 419 | } |
| 420 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 421 | return 0; |
| 422 | } |
| 423 | |
Dave Airlie | 908f9c4 | 2005-09-05 21:51:30 +1000 | [diff] [blame] | 424 | #if __OS_HAS_AGP |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 425 | /** |
| 426 | * Bootstrap the driver for AGP DMA. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 427 | * |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 428 | * \todo |
| 429 | * Investigate whether there is any benifit to storing the WARP microcode in |
| 430 | * AGP memory. If not, the microcode may as well always be put in PCI |
| 431 | * memory. |
| 432 | * |
| 433 | * \todo |
| 434 | * This routine needs to set dma_bs->agp_mode to the mode actually configured |
| 435 | * in the hardware. Looking just at the Linux AGP driver code, I don't see |
| 436 | * an easy way to determine this. |
| 437 | * |
| 438 | * \sa mga_do_dma_bootstrap, mga_do_pci_dma_bootstrap |
| 439 | */ |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 440 | static int mga_do_agp_dma_bootstrap(struct drm_device *dev, |
| 441 | drm_mga_dma_bootstrap_t *dma_bs) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 442 | { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 443 | drm_mga_private_t *const dev_priv = |
| 444 | (drm_mga_private_t *) dev->dev_private; |
Ben Hutchings | ece2be7 | 2009-08-23 18:34:25 +0100 | [diff] [blame] | 445 | unsigned int warp_size = MGA_WARP_UCODE_SIZE; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 446 | int err; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 447 | unsigned offset; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 448 | const unsigned secondary_size = dma_bs->secondary_bin_count |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 449 | * dma_bs->secondary_bin_size; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 450 | const unsigned agp_size = (dma_bs->agp_size << 20); |
Dave Airlie | eddca55 | 2007-07-11 16:09:54 +1000 | [diff] [blame] | 451 | struct drm_buf_desc req; |
| 452 | struct drm_agp_mode mode; |
| 453 | struct drm_agp_info info; |
| 454 | struct drm_agp_buffer agp_req; |
| 455 | struct drm_agp_binding bind_req; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 456 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 457 | /* Acquire AGP. */ |
| 458 | err = drm_agp_acquire(dev); |
| 459 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 460 | DRM_ERROR("Unable to acquire AGP: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 461 | return err; |
| 462 | } |
| 463 | |
| 464 | err = drm_agp_info(dev, &info); |
| 465 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 466 | DRM_ERROR("Unable to get AGP info: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 467 | return err; |
| 468 | } |
| 469 | |
| 470 | mode.mode = (info.mode & ~0x07) | dma_bs->agp_mode; |
| 471 | err = drm_agp_enable(dev, mode); |
| 472 | if (err) { |
| 473 | DRM_ERROR("Unable to enable AGP (mode = 0x%lx)\n", mode.mode); |
| 474 | return err; |
| 475 | } |
| 476 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 477 | /* In addition to the usual AGP mode configuration, the G200 AGP cards |
| 478 | * need to have the AGP mode "manually" set. |
| 479 | */ |
| 480 | |
| 481 | if (dev_priv->chipset == MGA_CARD_TYPE_G200) { |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 482 | if (mode.mode & 0x02) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 483 | MGA_WRITE(MGA_AGP_PLL, MGA_AGP2XPLL_ENABLE); |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 484 | else |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 485 | MGA_WRITE(MGA_AGP_PLL, MGA_AGP2XPLL_DISABLE); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 486 | } |
| 487 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 488 | /* Allocate and bind AGP memory. */ |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 489 | agp_req.size = agp_size; |
| 490 | agp_req.type = 0; |
| 491 | err = drm_agp_alloc(dev, &agp_req); |
| 492 | if (err) { |
| 493 | dev_priv->agp_size = 0; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 494 | DRM_ERROR("Unable to allocate %uMB AGP memory\n", |
| 495 | dma_bs->agp_size); |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 496 | return err; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 497 | } |
Dave Airlie | bc5f452 | 2007-11-05 12:50:58 +1000 | [diff] [blame] | 498 | |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 499 | dev_priv->agp_size = agp_size; |
| 500 | dev_priv->agp_handle = agp_req.handle; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 501 | |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 502 | bind_req.handle = agp_req.handle; |
| 503 | bind_req.offset = 0; |
| 504 | err = drm_agp_bind(dev, &bind_req); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 505 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 506 | DRM_ERROR("Unable to bind AGP memory: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 507 | return err; |
| 508 | } |
| 509 | |
Dave Airlie | 11909d6 | 2005-10-19 21:23:51 -0700 | [diff] [blame] | 510 | /* Make drm_addbufs happy by not trying to create a mapping for less |
| 511 | * than a page. |
| 512 | */ |
| 513 | if (warp_size < PAGE_SIZE) |
| 514 | warp_size = PAGE_SIZE; |
| 515 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 516 | offset = 0; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 517 | err = drm_addmap(dev, offset, warp_size, |
| 518 | _DRM_AGP, _DRM_READ_ONLY, &dev_priv->warp); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 519 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 520 | DRM_ERROR("Unable to map WARP microcode: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 521 | return err; |
| 522 | } |
| 523 | |
| 524 | offset += warp_size; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 525 | err = drm_addmap(dev, offset, dma_bs->primary_size, |
| 526 | _DRM_AGP, _DRM_READ_ONLY, &dev_priv->primary); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 527 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 528 | DRM_ERROR("Unable to map primary DMA region: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 529 | return err; |
| 530 | } |
| 531 | |
| 532 | offset += dma_bs->primary_size; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 533 | err = drm_addmap(dev, offset, secondary_size, |
| 534 | _DRM_AGP, 0, &dev->agp_buffer_map); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 535 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 536 | DRM_ERROR("Unable to map secondary DMA region: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 537 | return err; |
| 538 | } |
| 539 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 540 | (void)memset(&req, 0, sizeof(req)); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 541 | req.count = dma_bs->secondary_bin_count; |
| 542 | req.size = dma_bs->secondary_bin_size; |
| 543 | req.flags = _DRM_AGP_BUFFER; |
| 544 | req.agp_start = offset; |
| 545 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 546 | err = drm_addbufs_agp(dev, &req); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 547 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 548 | DRM_ERROR("Unable to add secondary DMA buffers: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 549 | return err; |
| 550 | } |
| 551 | |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 552 | { |
Dave Airlie | 5591051 | 2007-07-11 16:53:40 +1000 | [diff] [blame] | 553 | struct drm_map_list *_entry; |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 554 | unsigned long agp_token = 0; |
Dave Airlie | bc5f452 | 2007-11-05 12:50:58 +1000 | [diff] [blame] | 555 | |
Dave Airlie | bd1b331 | 2007-05-26 05:01:51 +1000 | [diff] [blame] | 556 | list_for_each_entry(_entry, &dev->maplist, head) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 557 | if (_entry->map == dev->agp_buffer_map) |
| 558 | agp_token = _entry->user_token; |
| 559 | } |
| 560 | if (!agp_token) |
| 561 | return -EFAULT; |
| 562 | |
| 563 | dev->agp_buffer_token = agp_token; |
| 564 | } |
| 565 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 566 | offset += secondary_size; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 567 | err = drm_addmap(dev, offset, agp_size - offset, |
| 568 | _DRM_AGP, 0, &dev_priv->agp_textures); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 569 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 570 | DRM_ERROR("Unable to map AGP texture region %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 571 | return err; |
| 572 | } |
| 573 | |
| 574 | drm_core_ioremap(dev_priv->warp, dev); |
| 575 | drm_core_ioremap(dev_priv->primary, dev); |
| 576 | drm_core_ioremap(dev->agp_buffer_map, dev); |
| 577 | |
| 578 | if (!dev_priv->warp->handle || |
| 579 | !dev_priv->primary->handle || !dev->agp_buffer_map->handle) { |
| 580 | DRM_ERROR("failed to ioremap agp regions! (%p, %p, %p)\n", |
| 581 | dev_priv->warp->handle, dev_priv->primary->handle, |
| 582 | dev->agp_buffer_map->handle); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 583 | return -ENOMEM; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 584 | } |
| 585 | |
| 586 | dev_priv->dma_access = MGA_PAGPXFER; |
| 587 | dev_priv->wagp_enable = MGA_WAGP_ENABLE; |
| 588 | |
| 589 | DRM_INFO("Initialized card for AGP DMA.\n"); |
| 590 | return 0; |
| 591 | } |
Dave Airlie | 908f9c4 | 2005-09-05 21:51:30 +1000 | [diff] [blame] | 592 | #else |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 593 | static int mga_do_agp_dma_bootstrap(struct drm_device *dev, |
| 594 | drm_mga_dma_bootstrap_t *dma_bs) |
Dave Airlie | 908f9c4 | 2005-09-05 21:51:30 +1000 | [diff] [blame] | 595 | { |
| 596 | return -EINVAL; |
| 597 | } |
| 598 | #endif |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 599 | |
| 600 | /** |
| 601 | * Bootstrap the driver for PCI DMA. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 602 | * |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 603 | * \todo |
| 604 | * The algorithm for decreasing the size of the primary DMA buffer could be |
| 605 | * better. The size should be rounded up to the nearest page size, then |
| 606 | * decrease the request size by a single page each pass through the loop. |
| 607 | * |
| 608 | * \todo |
| 609 | * Determine whether the maximum address passed to drm_pci_alloc is correct. |
| 610 | * The same goes for drm_addbufs_pci. |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 611 | * |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 612 | * \sa mga_do_dma_bootstrap, mga_do_agp_dma_bootstrap |
| 613 | */ |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 614 | static int mga_do_pci_dma_bootstrap(struct drm_device *dev, |
| 615 | drm_mga_dma_bootstrap_t *dma_bs) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 616 | { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 617 | drm_mga_private_t *const dev_priv = |
| 618 | (drm_mga_private_t *) dev->dev_private; |
Ben Hutchings | ece2be7 | 2009-08-23 18:34:25 +0100 | [diff] [blame] | 619 | unsigned int warp_size = MGA_WARP_UCODE_SIZE; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 620 | unsigned int primary_size; |
| 621 | unsigned int bin_count; |
| 622 | int err; |
Dave Airlie | eddca55 | 2007-07-11 16:09:54 +1000 | [diff] [blame] | 623 | struct drm_buf_desc req; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 624 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 625 | if (dev->dma == NULL) { |
| 626 | DRM_ERROR("dev->dma is NULL\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 627 | return -EFAULT; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 628 | } |
| 629 | |
Dave Airlie | 11909d6 | 2005-10-19 21:23:51 -0700 | [diff] [blame] | 630 | /* Make drm_addbufs happy by not trying to create a mapping for less |
| 631 | * than a page. |
| 632 | */ |
| 633 | if (warp_size < PAGE_SIZE) |
| 634 | warp_size = PAGE_SIZE; |
| 635 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 636 | /* The proper alignment is 0x100 for this mapping */ |
| 637 | err = drm_addmap(dev, 0, warp_size, _DRM_CONSISTENT, |
| 638 | _DRM_READ_ONLY, &dev_priv->warp); |
| 639 | if (err != 0) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 640 | DRM_ERROR("Unable to create mapping for WARP microcode: %d\n", |
| 641 | err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 642 | return err; |
| 643 | } |
| 644 | |
| 645 | /* Other than the bottom two bits being used to encode other |
| 646 | * information, there don't appear to be any restrictions on the |
| 647 | * alignment of the primary or secondary DMA buffers. |
| 648 | */ |
| 649 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 650 | for (primary_size = dma_bs->primary_size; primary_size != 0; |
| 651 | primary_size >>= 1) { |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 652 | /* The proper alignment for this mapping is 0x04 */ |
| 653 | err = drm_addmap(dev, 0, primary_size, _DRM_CONSISTENT, |
| 654 | _DRM_READ_ONLY, &dev_priv->primary); |
| 655 | if (!err) |
| 656 | break; |
| 657 | } |
| 658 | |
| 659 | if (err != 0) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 660 | DRM_ERROR("Unable to allocate primary DMA region: %d\n", err); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 661 | return -ENOMEM; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 662 | } |
| 663 | |
| 664 | if (dev_priv->primary->size != dma_bs->primary_size) { |
| 665 | DRM_INFO("Primary DMA buffer size reduced from %u to %u.\n", |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 666 | dma_bs->primary_size, |
| 667 | (unsigned)dev_priv->primary->size); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 668 | dma_bs->primary_size = dev_priv->primary->size; |
| 669 | } |
| 670 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 671 | for (bin_count = dma_bs->secondary_bin_count; bin_count > 0; |
| 672 | bin_count--) { |
| 673 | (void)memset(&req, 0, sizeof(req)); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 674 | req.count = bin_count; |
| 675 | req.size = dma_bs->secondary_bin_size; |
| 676 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 677 | err = drm_addbufs_pci(dev, &req); |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 678 | if (!err) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 679 | break; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 680 | } |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 681 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 682 | if (bin_count == 0) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 683 | DRM_ERROR("Unable to add secondary DMA buffers: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 684 | return err; |
| 685 | } |
| 686 | |
| 687 | if (bin_count != dma_bs->secondary_bin_count) { |
| 688 | DRM_INFO("Secondary PCI DMA buffer bin count reduced from %u " |
| 689 | "to %u.\n", dma_bs->secondary_bin_count, bin_count); |
| 690 | |
| 691 | dma_bs->secondary_bin_count = bin_count; |
| 692 | } |
| 693 | |
| 694 | dev_priv->dma_access = 0; |
| 695 | dev_priv->wagp_enable = 0; |
| 696 | |
| 697 | dma_bs->agp_mode = 0; |
| 698 | |
| 699 | DRM_INFO("Initialized card for PCI DMA.\n"); |
| 700 | return 0; |
| 701 | } |
| 702 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 703 | static int mga_do_dma_bootstrap(struct drm_device *dev, |
| 704 | drm_mga_dma_bootstrap_t *dma_bs) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 705 | { |
Dave Airlie | 8410ea3 | 2010-12-15 03:16:38 +1000 | [diff] [blame] | 706 | const int is_agp = (dma_bs->agp_mode != 0) && drm_pci_device_is_agp(dev); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 707 | int err; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 708 | drm_mga_private_t *const dev_priv = |
| 709 | (drm_mga_private_t *) dev->dev_private; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 710 | |
| 711 | dev_priv->used_new_dma_init = 1; |
| 712 | |
| 713 | /* The first steps are the same for both PCI and AGP based DMA. Map |
| 714 | * the cards MMIO registers and map a status page. |
| 715 | */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 716 | err = drm_addmap(dev, dev_priv->mmio_base, dev_priv->mmio_size, |
| 717 | _DRM_REGISTERS, _DRM_READ_ONLY, &dev_priv->mmio); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 718 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 719 | DRM_ERROR("Unable to map MMIO region: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 720 | return err; |
| 721 | } |
| 722 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 723 | err = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM, |
| 724 | _DRM_READ_ONLY | _DRM_LOCKED | _DRM_KERNEL, |
| 725 | &dev_priv->status); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 726 | if (err) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 727 | DRM_ERROR("Unable to map status region: %d\n", err); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 728 | return err; |
| 729 | } |
| 730 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 731 | /* The DMA initialization procedure is slightly different for PCI and |
| 732 | * AGP cards. AGP cards just allocate a large block of AGP memory and |
| 733 | * carve off portions of it for internal uses. The remaining memory |
| 734 | * is returned to user-mode to be used for AGP textures. |
| 735 | */ |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 736 | if (is_agp) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 737 | err = mga_do_agp_dma_bootstrap(dev, dma_bs); |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 738 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 739 | /* If we attempted to initialize the card for AGP DMA but failed, |
| 740 | * clean-up any mess that may have been created. |
| 741 | */ |
| 742 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 743 | if (err) |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 744 | mga_do_cleanup_dma(dev, MINIMAL_CLEANUP); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 745 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 746 | /* Not only do we want to try and initialized PCI cards for PCI DMA, |
| 747 | * but we also try to initialized AGP cards that could not be |
| 748 | * initialized for AGP DMA. This covers the case where we have an AGP |
| 749 | * card in a system with an unsupported AGP chipset. In that case the |
| 750 | * card will be detected as AGP, but we won't be able to allocate any |
| 751 | * AGP memory, etc. |
| 752 | */ |
| 753 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 754 | if (!is_agp || err) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 755 | err = mga_do_pci_dma_bootstrap(dev, dma_bs); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 756 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 757 | return err; |
| 758 | } |
| 759 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 760 | int mga_dma_bootstrap(struct drm_device *dev, void *data, |
| 761 | struct drm_file *file_priv) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 762 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 763 | drm_mga_dma_bootstrap_t *bootstrap = data; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 764 | int err; |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 765 | static const int modes[] = { 0, 1, 2, 2, 4, 4, 4, 4 }; |
| 766 | const drm_mga_private_t *const dev_priv = |
| 767 | (drm_mga_private_t *) dev->dev_private; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 768 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 769 | err = mga_do_dma_bootstrap(dev, bootstrap); |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 770 | if (err) { |
| 771 | mga_do_cleanup_dma(dev, FULL_CLEANUP); |
| 772 | return err; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 773 | } |
| 774 | |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 775 | if (dev_priv->agp_textures != NULL) { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 776 | bootstrap->texture_handle = dev_priv->agp_textures->offset; |
| 777 | bootstrap->texture_size = dev_priv->agp_textures->size; |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 778 | } else { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 779 | bootstrap->texture_handle = 0; |
| 780 | bootstrap->texture_size = 0; |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 781 | } |
| 782 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 783 | bootstrap->agp_mode = modes[bootstrap->agp_mode & 0x07]; |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 784 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 785 | return err; |
| 786 | } |
| 787 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 788 | static int mga_do_init_dma(struct drm_device *dev, drm_mga_init_t *init) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 789 | { |
| 790 | drm_mga_private_t *dev_priv; |
| 791 | int ret; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 792 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 794 | dev_priv = dev->dev_private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 795 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 796 | if (init->sgram) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_BLK; |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 798 | else |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 799 | dev_priv->clear_cmd = MGA_DWGCTL_CLEAR | MGA_ATYPE_RSTR; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 800 | dev_priv->maccess = init->maccess; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 801 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 802 | dev_priv->fb_cpp = init->fb_cpp; |
| 803 | dev_priv->front_offset = init->front_offset; |
| 804 | dev_priv->front_pitch = init->front_pitch; |
| 805 | dev_priv->back_offset = init->back_offset; |
| 806 | dev_priv->back_pitch = init->back_pitch; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 807 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 808 | dev_priv->depth_cpp = init->depth_cpp; |
| 809 | dev_priv->depth_offset = init->depth_offset; |
| 810 | dev_priv->depth_pitch = init->depth_pitch; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 811 | |
| 812 | /* FIXME: Need to support AGP textures... |
| 813 | */ |
| 814 | dev_priv->texture_offset = init->texture_offset[0]; |
| 815 | dev_priv->texture_size = init->texture_size[0]; |
| 816 | |
Dave Airlie | da509d7 | 2007-05-26 05:04:51 +1000 | [diff] [blame] | 817 | dev_priv->sarea = drm_getsarea(dev); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 818 | if (!dev_priv->sarea) { |
| 819 | DRM_ERROR("failed to find sarea!\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 820 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | } |
| 822 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 823 | if (!dev_priv->used_new_dma_init) { |
Dave Airlie | 11909d6 | 2005-10-19 21:23:51 -0700 | [diff] [blame] | 824 | |
| 825 | dev_priv->dma_access = MGA_PAGPXFER; |
| 826 | dev_priv->wagp_enable = MGA_WAGP_ENABLE; |
| 827 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 828 | dev_priv->status = drm_core_findmap(dev, init->status_offset); |
| 829 | if (!dev_priv->status) { |
| 830 | DRM_ERROR("failed to find status page!\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 831 | return -EINVAL; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 832 | } |
| 833 | dev_priv->mmio = drm_core_findmap(dev, init->mmio_offset); |
| 834 | if (!dev_priv->mmio) { |
| 835 | DRM_ERROR("failed to find mmio region!\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 836 | return -EINVAL; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 837 | } |
| 838 | dev_priv->warp = drm_core_findmap(dev, init->warp_offset); |
| 839 | if (!dev_priv->warp) { |
| 840 | DRM_ERROR("failed to find warp microcode region!\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 841 | return -EINVAL; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 842 | } |
| 843 | dev_priv->primary = drm_core_findmap(dev, init->primary_offset); |
| 844 | if (!dev_priv->primary) { |
| 845 | DRM_ERROR("failed to find primary dma region!\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 846 | return -EINVAL; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 847 | } |
Dave Airlie | d1f2b55 | 2005-08-05 22:11:22 +1000 | [diff] [blame] | 848 | dev->agp_buffer_token = init->buffers_offset; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 849 | dev->agp_buffer_map = |
| 850 | drm_core_findmap(dev, init->buffers_offset); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 851 | if (!dev->agp_buffer_map) { |
| 852 | DRM_ERROR("failed to find dma buffer region!\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 853 | return -EINVAL; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 854 | } |
| 855 | |
| 856 | drm_core_ioremap(dev_priv->warp, dev); |
| 857 | drm_core_ioremap(dev_priv->primary, dev); |
| 858 | drm_core_ioremap(dev->agp_buffer_map, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 859 | } |
| 860 | |
| 861 | dev_priv->sarea_priv = |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 862 | (drm_mga_sarea_t *) ((u8 *) dev_priv->sarea->handle + |
| 863 | init->sarea_priv_offset); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 864 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 865 | if (!dev_priv->warp->handle || |
| 866 | !dev_priv->primary->handle || |
| 867 | ((dev_priv->dma_access != 0) && |
| 868 | ((dev->agp_buffer_map == NULL) || |
| 869 | (dev->agp_buffer_map->handle == NULL)))) { |
| 870 | DRM_ERROR("failed to ioremap agp regions!\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 871 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 872 | } |
| 873 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 874 | ret = mga_warp_install_microcode(dev_priv); |
| 875 | if (ret < 0) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 876 | DRM_ERROR("failed to install WARP ucode!: %d\n", ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 877 | return ret; |
| 878 | } |
| 879 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 880 | ret = mga_warp_init(dev_priv); |
| 881 | if (ret < 0) { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 882 | DRM_ERROR("failed to init WARP engine!: %d\n", ret); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 883 | return ret; |
| 884 | } |
| 885 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 886 | dev_priv->prim.status = (u32 *) dev_priv->status->handle; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 887 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 888 | mga_do_wait_for_idle(dev_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 889 | |
| 890 | /* Init the primary DMA registers. |
| 891 | */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 892 | MGA_WRITE(MGA_PRIMADDRESS, dev_priv->primary->offset | MGA_DMA_GENERAL); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 893 | #if 0 |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 894 | MGA_WRITE(MGA_PRIMPTR, virt_to_bus((void *)dev_priv->prim.status) | MGA_PRIMPTREN0 | /* Soft trap, SECEND, SETUPEND */ |
| 895 | MGA_PRIMPTREN1); /* DWGSYNC */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 896 | #endif |
| 897 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 898 | dev_priv->prim.start = (u8 *) dev_priv->primary->handle; |
| 899 | dev_priv->prim.end = ((u8 *) dev_priv->primary->handle |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 900 | + dev_priv->primary->size); |
| 901 | dev_priv->prim.size = dev_priv->primary->size; |
| 902 | |
| 903 | dev_priv->prim.tail = 0; |
| 904 | dev_priv->prim.space = dev_priv->prim.size; |
| 905 | dev_priv->prim.wrapped = 0; |
| 906 | |
| 907 | dev_priv->prim.last_flush = 0; |
| 908 | dev_priv->prim.last_wrap = 0; |
| 909 | |
| 910 | dev_priv->prim.high_mark = 256 * DMA_BLOCK_SIZE; |
| 911 | |
| 912 | dev_priv->prim.status[0] = dev_priv->primary->offset; |
| 913 | dev_priv->prim.status[1] = 0; |
| 914 | |
| 915 | dev_priv->sarea_priv->last_wrap = 0; |
| 916 | dev_priv->sarea_priv->last_frame.head = 0; |
| 917 | dev_priv->sarea_priv->last_frame.wrap = 0; |
| 918 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 919 | if (mga_freelist_init(dev, dev_priv) < 0) { |
| 920 | DRM_ERROR("could not initialize freelist\n"); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 921 | return -ENOMEM; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | } |
| 923 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | return 0; |
| 925 | } |
| 926 | |
Dave Airlie | eddca55 | 2007-07-11 16:09:54 +1000 | [diff] [blame] | 927 | static int mga_do_cleanup_dma(struct drm_device *dev, int full_cleanup) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 928 | { |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 929 | int err = 0; |
| 930 | DRM_DEBUG("\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 931 | |
| 932 | /* Make sure interrupts are disabled here because the uninstall ioctl |
| 933 | * may not have been called from userspace and after dev_private |
| 934 | * is freed, it's too late. |
| 935 | */ |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 936 | if (dev->irq_enabled) |
| 937 | drm_irq_uninstall(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 938 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 939 | if (dev->dev_private) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 940 | drm_mga_private_t *dev_priv = dev->dev_private; |
| 941 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 942 | if ((dev_priv->warp != NULL) |
Dave Airlie | 11909d6 | 2005-10-19 21:23:51 -0700 | [diff] [blame] | 943 | && (dev_priv->warp->type != _DRM_CONSISTENT)) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 944 | drm_core_ioremapfree(dev_priv->warp, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 945 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 946 | if ((dev_priv->primary != NULL) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 947 | && (dev_priv->primary->type != _DRM_CONSISTENT)) |
| 948 | drm_core_ioremapfree(dev_priv->primary, dev); |
| 949 | |
| 950 | if (dev->agp_buffer_map != NULL) |
| 951 | drm_core_ioremapfree(dev->agp_buffer_map, dev); |
| 952 | |
| 953 | if (dev_priv->used_new_dma_init) { |
Dave Airlie | 908f9c4 | 2005-09-05 21:51:30 +1000 | [diff] [blame] | 954 | #if __OS_HAS_AGP |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 955 | if (dev_priv->agp_handle != 0) { |
Dave Airlie | eddca55 | 2007-07-11 16:09:54 +1000 | [diff] [blame] | 956 | struct drm_agp_binding unbind_req; |
| 957 | struct drm_agp_buffer free_req; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 958 | |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 959 | unbind_req.handle = dev_priv->agp_handle; |
| 960 | drm_agp_unbind(dev, &unbind_req); |
| 961 | |
| 962 | free_req.handle = dev_priv->agp_handle; |
| 963 | drm_agp_free(dev, &free_req); |
Dave Airlie | bc5f452 | 2007-11-05 12:50:58 +1000 | [diff] [blame] | 964 | |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 965 | dev_priv->agp_textures = NULL; |
| 966 | dev_priv->agp_size = 0; |
| 967 | dev_priv->agp_handle = 0; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 968 | } |
| 969 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 970 | if ((dev->agp != NULL) && dev->agp->acquired) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 971 | err = drm_agp_release(dev); |
Dave Airlie | 908f9c4 | 2005-09-05 21:51:30 +1000 | [diff] [blame] | 972 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 973 | } |
| 974 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 975 | dev_priv->warp = NULL; |
| 976 | dev_priv->primary = NULL; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 977 | dev_priv->sarea = NULL; |
| 978 | dev_priv->sarea_priv = NULL; |
| 979 | dev->agp_buffer_map = NULL; |
| 980 | |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 981 | if (full_cleanup) { |
| 982 | dev_priv->mmio = NULL; |
| 983 | dev_priv->status = NULL; |
| 984 | dev_priv->used_new_dma_init = 0; |
| 985 | } |
| 986 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 987 | memset(&dev_priv->prim, 0, sizeof(dev_priv->prim)); |
| 988 | dev_priv->warp_pipe = 0; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 989 | memset(dev_priv->warp_pipe_phys, 0, |
| 990 | sizeof(dev_priv->warp_pipe_phys)); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 991 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 992 | if (dev_priv->head != NULL) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 993 | mga_freelist_cleanup(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 994 | } |
| 995 | |
Jesper Juhl | a96ca10 | 2007-12-17 09:47:17 +1000 | [diff] [blame] | 996 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 997 | } |
| 998 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 999 | int mga_dma_init(struct drm_device *dev, void *data, |
| 1000 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1001 | { |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1002 | drm_mga_init_t *init = data; |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 1003 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1004 | |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 1005 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1006 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1007 | switch (init->func) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1008 | case MGA_INIT_DMA: |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1009 | err = mga_do_init_dma(dev, init); |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 1010 | if (err) |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 1011 | (void)mga_do_cleanup_dma(dev, FULL_CLEANUP); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 1012 | return err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1013 | case MGA_CLEANUP_DMA: |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 1014 | return mga_do_cleanup_dma(dev, FULL_CLEANUP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1015 | } |
| 1016 | |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 1017 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1018 | } |
| 1019 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1020 | /* ================================================================ |
| 1021 | * Primary DMA stream management |
| 1022 | */ |
| 1023 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1024 | int mga_dma_flush(struct drm_device *dev, void *data, |
| 1025 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1026 | { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1027 | drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1028 | struct drm_lock *lock = data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1029 | |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 1030 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1031 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1032 | DRM_DEBUG("%s%s%s\n", |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1033 | (lock->flags & _DRM_LOCK_FLUSH) ? "flush, " : "", |
| 1034 | (lock->flags & _DRM_LOCK_FLUSH_ALL) ? "flush all, " : "", |
| 1035 | (lock->flags & _DRM_LOCK_QUIESCENT) ? "idle, " : ""); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1036 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1037 | WRAP_WAIT_WITH_RETURN(dev_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1038 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 1039 | if (lock->flags & (_DRM_LOCK_FLUSH | _DRM_LOCK_FLUSH_ALL)) |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1040 | mga_do_dma_flush(dev_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1041 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1042 | if (lock->flags & _DRM_LOCK_QUIESCENT) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1043 | #if MGA_DMA_DEBUG |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1044 | int ret = mga_do_wait_for_idle(dev_priv); |
| 1045 | if (ret < 0) |
Márton Németh | 3e684ea | 2008-01-24 15:58:57 +1000 | [diff] [blame] | 1046 | DRM_INFO("-EBUSY\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1047 | return ret; |
| 1048 | #else |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1049 | return mga_do_wait_for_idle(dev_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1050 | #endif |
| 1051 | } else { |
| 1052 | return 0; |
| 1053 | } |
| 1054 | } |
| 1055 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1056 | int mga_dma_reset(struct drm_device *dev, void *data, |
| 1057 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1058 | { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1059 | drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1060 | |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 1061 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1062 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1063 | return mga_do_dma_reset(dev_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1064 | } |
| 1065 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1066 | /* ================================================================ |
| 1067 | * DMA buffer management |
| 1068 | */ |
| 1069 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 1070 | static int mga_dma_get_buffers(struct drm_device *dev, |
| 1071 | struct drm_file *file_priv, struct drm_dma *d) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1072 | { |
Dave Airlie | 056219e | 2007-07-11 16:17:42 +1000 | [diff] [blame] | 1073 | struct drm_buf *buf; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1074 | int i; |
| 1075 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1076 | for (i = d->granted_count; i < d->request_count; i++) { |
| 1077 | buf = mga_freelist_get(dev); |
| 1078 | if (!buf) |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 1079 | return -EAGAIN; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1080 | |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 1081 | buf->file_priv = file_priv; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1083 | if (DRM_COPY_TO_USER(&d->request_indices[i], |
| 1084 | &buf->idx, sizeof(buf->idx))) |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 1085 | return -EFAULT; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1086 | if (DRM_COPY_TO_USER(&d->request_sizes[i], |
| 1087 | &buf->total, sizeof(buf->total))) |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 1088 | return -EFAULT; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1089 | |
| 1090 | d->granted_count++; |
| 1091 | } |
| 1092 | return 0; |
| 1093 | } |
| 1094 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1095 | int mga_dma_buffers(struct drm_device *dev, void *data, |
| 1096 | struct drm_file *file_priv) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1097 | { |
Dave Airlie | cdd55a2 | 2007-07-11 16:32:08 +1000 | [diff] [blame] | 1098 | struct drm_device_dma *dma = dev->dma; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1099 | drm_mga_private_t *dev_priv = (drm_mga_private_t *) dev->dev_private; |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1100 | struct drm_dma *d = data; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1101 | int ret = 0; |
| 1102 | |
Eric Anholt | 6c340ea | 2007-08-25 20:23:09 +1000 | [diff] [blame] | 1103 | LOCK_TEST_WITH_RETURN(dev, file_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1104 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | /* Please don't send us buffers. |
| 1106 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1107 | if (d->send_count != 0) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1108 | DRM_ERROR("Process %d trying to send %d buffers via drmDMA\n", |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1109 | DRM_CURRENTPID, d->send_count); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 1110 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1111 | } |
| 1112 | |
| 1113 | /* We'll send you buffers. |
| 1114 | */ |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1115 | if (d->request_count < 0 || d->request_count > dma->buf_count) { |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1116 | DRM_ERROR("Process %d trying to get %d buffers (of %d max)\n", |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1117 | DRM_CURRENTPID, d->request_count, dma->buf_count); |
Eric Anholt | 20caafa | 2007-08-25 19:22:43 +1000 | [diff] [blame] | 1118 | return -EINVAL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1119 | } |
| 1120 | |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1121 | WRAP_TEST_WITH_RETURN(dev_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1122 | |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1123 | d->granted_count = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1124 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 1125 | if (d->request_count) |
Eric Anholt | c153f45 | 2007-09-03 12:06:45 +1000 | [diff] [blame] | 1126 | ret = mga_dma_get_buffers(dev, file_priv, d); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1127 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1128 | return ret; |
| 1129 | } |
| 1130 | |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 1131 | /** |
| 1132 | * Called just before the module is unloaded. |
| 1133 | */ |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 1134 | int mga_driver_unload(struct drm_device *dev) |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 1135 | { |
Eric Anholt | 9a298b2 | 2009-03-24 12:23:04 -0700 | [diff] [blame] | 1136 | kfree(dev->dev_private); |
Dave Airlie | 6795c98 | 2005-07-10 18:20:09 +1000 | [diff] [blame] | 1137 | dev->dev_private = NULL; |
| 1138 | |
| 1139 | return 0; |
| 1140 | } |
| 1141 | |
| 1142 | /** |
| 1143 | * Called when the last opener of the device is closed. |
| 1144 | */ |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 1145 | void mga_driver_lastclose(struct drm_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1146 | { |
Dave Airlie | 7ccf800 | 2005-11-11 23:11:34 +1100 | [diff] [blame] | 1147 | mga_do_cleanup_dma(dev, FULL_CLEANUP); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1148 | } |
| 1149 | |
Nicolas Kaiser | f2b2cb7 | 2010-07-12 01:46:57 +0200 | [diff] [blame] | 1150 | int mga_driver_dma_quiescent(struct drm_device *dev) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1151 | { |
| 1152 | drm_mga_private_t *dev_priv = dev->dev_private; |
Dave Airlie | b5e89ed | 2005-09-25 14:28:13 +1000 | [diff] [blame] | 1153 | return mga_do_wait_for_idle(dev_priv); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1154 | } |