Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 Chia-I Wu <olvaffe@gmail.com> |
| 3 | * Copyright (C) 2011 LunarG Inc. |
| 4 | * |
| 5 | * Based on xf86-video-nouveau, which has |
| 6 | * |
| 7 | * Copyright © 2007 Red Hat, Inc. |
| 8 | * Copyright © 2008 Maarten Maathuis |
| 9 | * |
| 10 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 11 | * copy of this software and associated documentation files (the "Software"), |
| 12 | * to deal in the Software without restriction, including without limitation |
| 13 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 14 | * and/or sell copies of the Software, and to permit persons to whom the |
| 15 | * Software is furnished to do so, subject to the following conditions: |
| 16 | * |
| 17 | * The above copyright notice and this permission notice shall be included |
| 18 | * in all copies or substantial portions of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 23 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 25 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| 26 | * DEALINGS IN THE SOFTWARE. |
| 27 | */ |
| 28 | |
| 29 | #define LOG_TAG "GRALLOC-NOUVEAU" |
| 30 | |
| 31 | #include <cutils/log.h> |
| 32 | #include <stdlib.h> |
| 33 | #include <errno.h> |
| 34 | #include <drm.h> |
| 35 | #include <nouveau_drmif.h> |
| 36 | #include <nouveau_channel.h> |
| 37 | #include <nouveau_bo.h> |
| 38 | |
| 39 | #include "gralloc_drm.h" |
| 40 | #include "gralloc_drm_priv.h" |
| 41 | |
| 42 | #define MAX(a, b) (((a) > (b)) ? (a) : (b)) |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 43 | |
| 44 | #define NVC0_TILE_HEIGHT(m) (8 << ((m) >> 4)) |
| 45 | |
| 46 | enum { |
| 47 | NvDmaFB = 0xd8000001, |
| 48 | NvDmaTT = 0xd8000002, |
| 49 | }; |
| 50 | |
| 51 | struct nouveau_info { |
| 52 | struct gralloc_drm_drv_t base; |
| 53 | |
| 54 | int fd; |
| 55 | struct nouveau_device *dev; |
| 56 | struct nouveau_channel *chan; |
| 57 | int arch; |
| 58 | int tiled_scanout; |
| 59 | }; |
| 60 | |
| 61 | struct nouveau_buffer { |
| 62 | struct gralloc_drm_bo_t base; |
| 63 | |
| 64 | struct nouveau_bo *bo; |
| 65 | }; |
| 66 | |
| 67 | static struct nouveau_bo *alloc_bo(struct nouveau_info *info, |
| 68 | int width, int height, int cpp, int usage, int *pitch) |
| 69 | { |
| 70 | struct nouveau_bo *bo = NULL; |
| 71 | int flags, tile_mode, tile_flags; |
| 72 | int tiled, scanout; |
| 73 | unsigned int align; |
| 74 | |
| 75 | flags = NOUVEAU_BO_MAP | NOUVEAU_BO_VRAM; |
| 76 | tile_mode = 0; |
| 77 | tile_flags = 0; |
| 78 | |
| 79 | scanout = !!(usage & GRALLOC_USAGE_HW_FB); |
| 80 | |
| 81 | tiled = !(usage & (GRALLOC_USAGE_SW_READ_OFTEN | |
| 82 | GRALLOC_USAGE_SW_WRITE_OFTEN)); |
| 83 | if (!info->chan) |
| 84 | tiled = 0; |
| 85 | else if (scanout && info->tiled_scanout) |
| 86 | tiled = 1; |
| 87 | |
| 88 | /* calculate pitch align */ |
| 89 | align = 64; |
| 90 | if (info->arch >= 0x50) { |
| 91 | if (scanout && !info->tiled_scanout) |
| 92 | align = 256; |
| 93 | else |
| 94 | tiled = 1; |
| 95 | } |
| 96 | |
| 97 | *pitch = ALIGN(width * cpp, align); |
| 98 | |
| 99 | if (tiled) { |
| 100 | if (info->arch >= 0xc0) { |
| 101 | if (height > 64) |
| 102 | tile_mode = 0x40; |
| 103 | else if (height > 32) |
| 104 | tile_mode = 0x30; |
| 105 | else if (height > 16) |
| 106 | tile_mode = 0x20; |
| 107 | else if (height > 8) |
| 108 | tile_mode = 0x10; |
| 109 | else |
| 110 | tile_mode = 0x00; |
| 111 | |
| 112 | tile_flags = 0xfe00; |
| 113 | |
| 114 | align = NVC0_TILE_HEIGHT(tile_mode); |
| 115 | height = ALIGN(height, align); |
| 116 | } |
| 117 | else if (info->arch >= 0x50) { |
| 118 | if (height > 32) |
| 119 | tile_mode = 4; |
| 120 | else if (height > 16) |
| 121 | tile_mode = 3; |
| 122 | else if (height > 8) |
| 123 | tile_mode = 2; |
| 124 | else if (height > 4) |
| 125 | tile_mode = 1; |
| 126 | else |
| 127 | tile_mode = 0; |
| 128 | |
| 129 | tile_flags = (scanout && cpp != 2) ? 0x7a00 : 0x7000; |
| 130 | |
| 131 | align = 1 << (tile_mode + 2); |
| 132 | height = ALIGN(height, align); |
| 133 | } |
| 134 | else { |
| 135 | align = *pitch / 4; |
| 136 | |
| 137 | /* round down to the previous power of two */ |
| 138 | align >>= 1; |
| 139 | align |= align >> 1; |
| 140 | align |= align >> 2; |
| 141 | align |= align >> 4; |
| 142 | align |= align >> 8; |
| 143 | align |= align >> 16; |
| 144 | align++; |
| 145 | |
| 146 | align = MAX((info->dev->chipset >= 0x40) ? 1024 : 256, |
| 147 | align); |
| 148 | |
| 149 | /* adjust pitch */ |
| 150 | *pitch = ALIGN(*pitch, align); |
| 151 | |
| 152 | tile_mode = *pitch; |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | if (cpp == 4) |
| 157 | tile_flags |= NOUVEAU_BO_TILE_32BPP; |
| 158 | else if (cpp == 2) |
| 159 | tile_flags |= NOUVEAU_BO_TILE_16BPP; |
| 160 | |
| 161 | if (scanout) |
| 162 | tile_flags |= NOUVEAU_BO_TILE_SCANOUT; |
| 163 | |
| 164 | if (nouveau_bo_new_tile(info->dev, flags, 0, *pitch * height, |
| 165 | tile_mode, tile_flags, &bo)) { |
Charles Johnson | b56dc92 | 2012-07-10 17:51:32 -0700 | [diff] [blame] | 166 | ALOGE("failed to allocate bo (flags 0x%x, size %d, tile_mode 0x%x, tile_flags 0x%x)", |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 167 | flags, *pitch * height, tile_mode, tile_flags); |
| 168 | bo = NULL; |
| 169 | } |
| 170 | |
| 171 | return bo; |
| 172 | } |
| 173 | |
| 174 | static struct gralloc_drm_bo_t * |
| 175 | nouveau_alloc(struct gralloc_drm_drv_t *drv, struct gralloc_drm_handle_t *handle) |
| 176 | { |
| 177 | struct nouveau_info *info = (struct nouveau_info *) drv; |
| 178 | struct nouveau_buffer *nb; |
| 179 | int cpp; |
| 180 | |
| 181 | cpp = gralloc_drm_get_bpp(handle->format); |
| 182 | if (!cpp) { |
Charles Johnson | b56dc92 | 2012-07-10 17:51:32 -0700 | [diff] [blame] | 183 | ALOGE("unrecognized format 0x%x", handle->format); |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 184 | return NULL; |
| 185 | } |
| 186 | |
| 187 | nb = calloc(1, sizeof(*nb)); |
| 188 | if (!nb) |
| 189 | return NULL; |
| 190 | |
| 191 | if (handle->name) { |
| 192 | if (nouveau_bo_handle_ref(info->dev, handle->name, &nb->bo)) { |
Charles Johnson | b56dc92 | 2012-07-10 17:51:32 -0700 | [diff] [blame] | 193 | ALOGE("failed to create nouveau bo from name %u", |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 194 | handle->name); |
| 195 | free(nb); |
| 196 | return NULL; |
| 197 | } |
| 198 | } |
| 199 | else { |
Chia-I Wu | b65a3f8 | 2011-10-27 18:01:23 +0800 | [diff] [blame] | 200 | int width, height, pitch; |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 201 | |
Chia-I Wu | b65a3f8 | 2011-10-27 18:01:23 +0800 | [diff] [blame] | 202 | width = handle->width; |
| 203 | height = handle->height; |
| 204 | gralloc_drm_align_geometry(handle->format, &width, &height); |
| 205 | |
| 206 | nb->bo = alloc_bo(info, width, height, |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 207 | cpp, handle->usage, &pitch); |
| 208 | if (!nb->bo) { |
Charles Johnson | b56dc92 | 2012-07-10 17:51:32 -0700 | [diff] [blame] | 209 | ALOGE("failed to allocate nouveau bo %dx%dx%d", |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 210 | handle->width, handle->height, cpp); |
| 211 | free(nb); |
| 212 | return NULL; |
| 213 | } |
| 214 | |
| 215 | if (nouveau_bo_handle_get(nb->bo, |
| 216 | (uint32_t *) &handle->name)) { |
Charles Johnson | b56dc92 | 2012-07-10 17:51:32 -0700 | [diff] [blame] | 217 | ALOGE("failed to flink nouveau bo"); |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 218 | nouveau_bo_ref(NULL, &nb->bo); |
| 219 | free(nb); |
| 220 | return NULL; |
| 221 | } |
| 222 | |
| 223 | handle->stride = pitch; |
| 224 | } |
| 225 | |
| 226 | if (handle->usage & GRALLOC_USAGE_HW_FB) |
| 227 | nb->base.fb_handle = nb->bo->handle; |
| 228 | |
| 229 | nb->base.handle = handle; |
| 230 | |
| 231 | return &nb->base; |
| 232 | } |
| 233 | |
| 234 | static void nouveau_free(struct gralloc_drm_drv_t *drv, |
| 235 | struct gralloc_drm_bo_t *bo) |
| 236 | { |
| 237 | struct nouveau_buffer *nb = (struct nouveau_buffer *) bo; |
| 238 | nouveau_bo_ref(NULL, &nb->bo); |
| 239 | free(nb); |
| 240 | } |
| 241 | |
| 242 | static int nouveau_map(struct gralloc_drm_drv_t *drv, |
| 243 | struct gralloc_drm_bo_t *bo, int x, int y, int w, int h, |
| 244 | int enable_write, void **addr) |
| 245 | { |
| 246 | struct nouveau_buffer *nb = (struct nouveau_buffer *) bo; |
| 247 | uint32_t flags; |
| 248 | int err; |
| 249 | |
| 250 | flags = NOUVEAU_BO_RD; |
| 251 | if (enable_write) |
| 252 | flags |= NOUVEAU_BO_WR; |
| 253 | |
| 254 | /* TODO if tiled, allocate a linear copy of bo in GART and map it */ |
| 255 | err = nouveau_bo_map(nb->bo, flags); |
| 256 | if (!err) |
| 257 | *addr = nb->bo->map; |
| 258 | |
| 259 | return err; |
| 260 | } |
| 261 | |
| 262 | static void nouveau_unmap(struct gralloc_drm_drv_t *drv, |
| 263 | struct gralloc_drm_bo_t *bo) |
| 264 | { |
| 265 | struct nouveau_buffer *nb = (struct nouveau_buffer *) bo; |
| 266 | /* TODO if tiled, unmap the linear bo and copy back */ |
| 267 | nouveau_bo_unmap(nb->bo); |
| 268 | } |
| 269 | |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 270 | static void nouveau_destroy(struct gralloc_drm_drv_t *drv) |
| 271 | { |
| 272 | struct nouveau_info *info = (struct nouveau_info *) drv; |
| 273 | |
| 274 | if (info->chan) |
| 275 | nouveau_channel_free(&info->chan); |
| 276 | nouveau_device_close(&info->dev); |
| 277 | free(info); |
| 278 | } |
| 279 | |
| 280 | static int nouveau_init(struct nouveau_info *info) |
| 281 | { |
| 282 | int err = 0; |
| 283 | |
| 284 | switch (info->dev->chipset & 0xf0) { |
| 285 | case 0x00: |
| 286 | info->arch = 0x04; |
| 287 | break; |
| 288 | case 0x10: |
| 289 | info->arch = 0x10; |
| 290 | break; |
| 291 | case 0x20: |
| 292 | info->arch = 0x20; |
| 293 | break; |
| 294 | case 0x30: |
| 295 | info->arch = 0x30; |
| 296 | break; |
| 297 | case 0x40: |
| 298 | case 0x60: |
| 299 | info->arch = 0x40; |
| 300 | break; |
| 301 | case 0x50: |
| 302 | case 0x80: |
| 303 | case 0x90: |
| 304 | case 0xa0: |
| 305 | info->arch = 0x50; |
| 306 | break; |
| 307 | case 0xc0: |
| 308 | info->arch = 0xc0; |
| 309 | break; |
| 310 | default: |
Charles Johnson | b56dc92 | 2012-07-10 17:51:32 -0700 | [diff] [blame] | 311 | ALOGE("unknown nouveau chipset 0x%x", info->dev->chipset); |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 312 | err = -EINVAL; |
| 313 | break; |
| 314 | } |
| 315 | |
| 316 | info->tiled_scanout = (info->chan != NULL); |
| 317 | |
| 318 | return err; |
| 319 | } |
| 320 | |
| 321 | struct gralloc_drm_drv_t *gralloc_drm_drv_create_for_nouveau(int fd) |
| 322 | { |
| 323 | struct nouveau_info *info; |
| 324 | int err; |
| 325 | |
| 326 | info = calloc(1, sizeof(*info)); |
| 327 | if (!info) |
| 328 | return NULL; |
| 329 | |
| 330 | info->fd = fd; |
| 331 | err = nouveau_device_open_existing(&info->dev, 0, info->fd, 0); |
| 332 | if (err) { |
Charles Johnson | b56dc92 | 2012-07-10 17:51:32 -0700 | [diff] [blame] | 333 | ALOGE("failed to create nouveau device"); |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 334 | free(info); |
| 335 | return NULL; |
| 336 | } |
| 337 | |
| 338 | err = nouveau_channel_alloc(info->dev, NvDmaFB, NvDmaTT, |
| 339 | 24 * 1024, &info->chan); |
| 340 | if (err) { |
| 341 | /* make it non-fatal temporarily as it may require firmwares */ |
Charles Johnson | b56dc92 | 2012-07-10 17:51:32 -0700 | [diff] [blame] | 342 | ALOGW("failed to create nouveau channel"); |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 343 | info->chan = NULL; |
| 344 | } |
| 345 | |
| 346 | err = nouveau_init(info); |
| 347 | if (err) { |
| 348 | if (info->chan) |
| 349 | nouveau_channel_free(&info->chan); |
| 350 | nouveau_device_close(&info->dev); |
| 351 | free(info); |
| 352 | return NULL; |
| 353 | } |
| 354 | |
| 355 | info->base.destroy = nouveau_destroy; |
Chia-I Wu | 64345b4 | 2011-06-12 18:43:33 +0800 | [diff] [blame] | 356 | info->base.alloc = nouveau_alloc; |
| 357 | info->base.free = nouveau_free; |
| 358 | info->base.map = nouveau_map; |
| 359 | info->base.unmap = nouveau_unmap; |
| 360 | |
| 361 | return &info->base; |
| 362 | } |