Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Advanced Micro Devices, Inc. |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the |
| 7 | * "Software"), to deal in the Software without restriction, including |
| 8 | * without limitation the rights to use, copy, modify, merge, publish, |
| 9 | * distribute, sub license, and/or sell copies of the Software, and to |
| 10 | * permit persons to whom the Software is furnished to do so, subject to |
| 11 | * the following conditions: |
| 12 | * |
| 13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 16 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 17 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 18 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 19 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 20 | * |
| 21 | * The above copyright notice and this permission notice (including the |
| 22 | * next paragraph) shall be included in all copies or substantial portions |
| 23 | * of the Software. |
| 24 | * |
| 25 | */ |
| 26 | /* |
| 27 | * Authors: |
| 28 | * Christian König <deathsimple@vodafone.de> |
| 29 | */ |
| 30 | |
| 31 | #include <linux/firmware.h> |
| 32 | #include <linux/module.h> |
| 33 | #include <drm/drmP.h> |
| 34 | #include <drm/drm.h> |
| 35 | |
| 36 | #include "radeon.h" |
| 37 | #include "r600d.h" |
| 38 | |
Christian König | 55b51c8 | 2013-04-18 15:25:59 +0200 | [diff] [blame] | 39 | /* 1 second timeout */ |
| 40 | #define UVD_IDLE_TIMEOUT_MS 1000 |
| 41 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 42 | /* Firmware Names */ |
| 43 | #define FIRMWARE_RV710 "radeon/RV710_uvd.bin" |
| 44 | #define FIRMWARE_CYPRESS "radeon/CYPRESS_uvd.bin" |
| 45 | #define FIRMWARE_SUMO "radeon/SUMO_uvd.bin" |
| 46 | #define FIRMWARE_TAHITI "radeon/TAHITI_uvd.bin" |
Christian König | 87167bb | 2013-04-09 13:39:21 -0400 | [diff] [blame] | 47 | #define FIRMWARE_BONAIRE "radeon/BONAIRE_uvd.bin" |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 48 | |
| 49 | MODULE_FIRMWARE(FIRMWARE_RV710); |
| 50 | MODULE_FIRMWARE(FIRMWARE_CYPRESS); |
| 51 | MODULE_FIRMWARE(FIRMWARE_SUMO); |
| 52 | MODULE_FIRMWARE(FIRMWARE_TAHITI); |
Christian König | 87167bb | 2013-04-09 13:39:21 -0400 | [diff] [blame] | 53 | MODULE_FIRMWARE(FIRMWARE_BONAIRE); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 54 | |
Christian König | 55b51c8 | 2013-04-18 15:25:59 +0200 | [diff] [blame] | 55 | static void radeon_uvd_idle_work_handler(struct work_struct *work); |
| 56 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 57 | int radeon_uvd_init(struct radeon_device *rdev) |
| 58 | { |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 59 | unsigned long bo_size; |
| 60 | const char *fw_name; |
| 61 | int i, r; |
| 62 | |
Christian König | 55b51c8 | 2013-04-18 15:25:59 +0200 | [diff] [blame] | 63 | INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler); |
| 64 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 65 | switch (rdev->family) { |
| 66 | case CHIP_RV710: |
| 67 | case CHIP_RV730: |
| 68 | case CHIP_RV740: |
| 69 | fw_name = FIRMWARE_RV710; |
| 70 | break; |
| 71 | |
| 72 | case CHIP_CYPRESS: |
| 73 | case CHIP_HEMLOCK: |
| 74 | case CHIP_JUNIPER: |
| 75 | case CHIP_REDWOOD: |
| 76 | case CHIP_CEDAR: |
| 77 | fw_name = FIRMWARE_CYPRESS; |
| 78 | break; |
| 79 | |
| 80 | case CHIP_SUMO: |
| 81 | case CHIP_SUMO2: |
| 82 | case CHIP_PALM: |
| 83 | case CHIP_CAYMAN: |
| 84 | case CHIP_BARTS: |
| 85 | case CHIP_TURKS: |
| 86 | case CHIP_CAICOS: |
| 87 | fw_name = FIRMWARE_SUMO; |
| 88 | break; |
| 89 | |
| 90 | case CHIP_TAHITI: |
| 91 | case CHIP_VERDE: |
| 92 | case CHIP_PITCAIRN: |
| 93 | case CHIP_ARUBA: |
| 94 | fw_name = FIRMWARE_TAHITI; |
| 95 | break; |
| 96 | |
Christian König | 87167bb | 2013-04-09 13:39:21 -0400 | [diff] [blame] | 97 | case CHIP_BONAIRE: |
| 98 | case CHIP_KABINI: |
| 99 | case CHIP_KAVERI: |
| 100 | fw_name = FIRMWARE_BONAIRE; |
| 101 | break; |
| 102 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 103 | default: |
| 104 | return -EINVAL; |
| 105 | } |
| 106 | |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 107 | r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 108 | if (r) { |
| 109 | dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n", |
| 110 | fw_name); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 111 | return r; |
| 112 | } |
| 113 | |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 114 | bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) + |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 115 | RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE; |
| 116 | r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true, |
| 117 | RADEON_GEM_DOMAIN_VRAM, NULL, &rdev->uvd.vcpu_bo); |
| 118 | if (r) { |
| 119 | dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r); |
| 120 | return r; |
| 121 | } |
| 122 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 123 | r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false); |
| 124 | if (r) { |
| 125 | radeon_bo_unref(&rdev->uvd.vcpu_bo); |
| 126 | dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r); |
| 127 | return r; |
| 128 | } |
| 129 | |
| 130 | r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM, |
| 131 | &rdev->uvd.gpu_addr); |
| 132 | if (r) { |
| 133 | radeon_bo_unreserve(rdev->uvd.vcpu_bo); |
| 134 | radeon_bo_unref(&rdev->uvd.vcpu_bo); |
| 135 | dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r); |
| 136 | return r; |
| 137 | } |
| 138 | |
| 139 | r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr); |
| 140 | if (r) { |
| 141 | dev_err(rdev->dev, "(%d) UVD map failed\n", r); |
| 142 | return r; |
| 143 | } |
| 144 | |
| 145 | radeon_bo_unreserve(rdev->uvd.vcpu_bo); |
| 146 | |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 147 | for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { |
| 148 | atomic_set(&rdev->uvd.handles[i], 0); |
| 149 | rdev->uvd.filp[i] = NULL; |
Alex Deucher | 85a129c | 2013-08-05 12:41:20 -0400 | [diff] [blame^] | 150 | rdev->uvd.img_size[i] = 0; |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 151 | } |
| 152 | |
| 153 | return 0; |
| 154 | } |
| 155 | |
| 156 | void radeon_uvd_fini(struct radeon_device *rdev) |
| 157 | { |
| 158 | int r; |
| 159 | |
| 160 | if (rdev->uvd.vcpu_bo == NULL) |
| 161 | return; |
| 162 | |
| 163 | r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false); |
| 164 | if (!r) { |
| 165 | radeon_bo_kunmap(rdev->uvd.vcpu_bo); |
| 166 | radeon_bo_unpin(rdev->uvd.vcpu_bo); |
| 167 | radeon_bo_unreserve(rdev->uvd.vcpu_bo); |
| 168 | } |
| 169 | |
| 170 | radeon_bo_unref(&rdev->uvd.vcpu_bo); |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 171 | |
| 172 | release_firmware(rdev->uvd_fw); |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | int radeon_uvd_suspend(struct radeon_device *rdev) |
| 176 | { |
| 177 | unsigned size; |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 178 | void *ptr; |
| 179 | int i; |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 180 | |
| 181 | if (rdev->uvd.vcpu_bo == NULL) |
| 182 | return 0; |
| 183 | |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 184 | for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) |
| 185 | if (atomic_read(&rdev->uvd.handles[i])) |
| 186 | break; |
| 187 | |
| 188 | if (i == RADEON_MAX_UVD_HANDLES) |
| 189 | return 0; |
| 190 | |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 191 | size = radeon_bo_size(rdev->uvd.vcpu_bo); |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 192 | size -= rdev->uvd_fw->size; |
| 193 | |
| 194 | ptr = rdev->uvd.cpu_addr; |
| 195 | ptr += rdev->uvd_fw->size; |
| 196 | |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 197 | rdev->uvd.saved_bo = kmalloc(size, GFP_KERNEL); |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 198 | memcpy(rdev->uvd.saved_bo, ptr, size); |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 199 | |
| 200 | return 0; |
| 201 | } |
| 202 | |
| 203 | int radeon_uvd_resume(struct radeon_device *rdev) |
| 204 | { |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 205 | unsigned size; |
| 206 | void *ptr; |
| 207 | |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 208 | if (rdev->uvd.vcpu_bo == NULL) |
| 209 | return -EINVAL; |
| 210 | |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 211 | memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size); |
| 212 | |
| 213 | size = radeon_bo_size(rdev->uvd.vcpu_bo); |
| 214 | size -= rdev->uvd_fw->size; |
| 215 | |
| 216 | ptr = rdev->uvd.cpu_addr; |
| 217 | ptr += rdev->uvd_fw->size; |
| 218 | |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 219 | if (rdev->uvd.saved_bo != NULL) { |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 220 | memcpy(ptr, rdev->uvd.saved_bo, size); |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 221 | kfree(rdev->uvd.saved_bo); |
| 222 | rdev->uvd.saved_bo = NULL; |
Christian König | 4ad9c1c | 2013-08-05 14:10:55 +0200 | [diff] [blame] | 223 | } else |
| 224 | memset(ptr, 0, size); |
Christian König | 9cc2e0e | 2013-07-12 10:18:09 -0400 | [diff] [blame] | 225 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 226 | return 0; |
| 227 | } |
| 228 | |
| 229 | void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo) |
| 230 | { |
| 231 | rbo->placement.fpfn = 0 >> PAGE_SHIFT; |
| 232 | rbo->placement.lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT; |
| 233 | } |
| 234 | |
| 235 | void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp) |
| 236 | { |
| 237 | int i, r; |
| 238 | for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { |
Christian König | 641a005 | 2013-08-05 14:10:56 +0200 | [diff] [blame] | 239 | uint32_t handle = atomic_read(&rdev->uvd.handles[i]); |
| 240 | if (handle != 0 && rdev->uvd.filp[i] == filp) { |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 241 | struct radeon_fence *fence; |
| 242 | |
| 243 | r = radeon_uvd_get_destroy_msg(rdev, |
| 244 | R600_RING_TYPE_UVD_INDEX, handle, &fence); |
| 245 | if (r) { |
| 246 | DRM_ERROR("Error destroying UVD (%d)!\n", r); |
| 247 | continue; |
| 248 | } |
| 249 | |
| 250 | radeon_fence_wait(fence, false); |
| 251 | radeon_fence_unref(&fence); |
| 252 | |
| 253 | rdev->uvd.filp[i] = NULL; |
| 254 | atomic_set(&rdev->uvd.handles[i], 0); |
| 255 | } |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[]) |
| 260 | { |
| 261 | unsigned stream_type = msg[4]; |
| 262 | unsigned width = msg[6]; |
| 263 | unsigned height = msg[7]; |
| 264 | unsigned dpb_size = msg[9]; |
| 265 | unsigned pitch = msg[28]; |
| 266 | |
| 267 | unsigned width_in_mb = width / 16; |
| 268 | unsigned height_in_mb = ALIGN(height / 16, 2); |
| 269 | |
| 270 | unsigned image_size, tmp, min_dpb_size; |
| 271 | |
| 272 | image_size = width * height; |
| 273 | image_size += image_size / 2; |
| 274 | image_size = ALIGN(image_size, 1024); |
| 275 | |
| 276 | switch (stream_type) { |
| 277 | case 0: /* H264 */ |
| 278 | |
| 279 | /* reference picture buffer */ |
| 280 | min_dpb_size = image_size * 17; |
| 281 | |
| 282 | /* macroblock context buffer */ |
| 283 | min_dpb_size += width_in_mb * height_in_mb * 17 * 192; |
| 284 | |
| 285 | /* IT surface buffer */ |
| 286 | min_dpb_size += width_in_mb * height_in_mb * 32; |
| 287 | break; |
| 288 | |
| 289 | case 1: /* VC1 */ |
| 290 | |
| 291 | /* reference picture buffer */ |
| 292 | min_dpb_size = image_size * 3; |
| 293 | |
| 294 | /* CONTEXT_BUFFER */ |
| 295 | min_dpb_size += width_in_mb * height_in_mb * 128; |
| 296 | |
| 297 | /* IT surface buffer */ |
| 298 | min_dpb_size += width_in_mb * 64; |
| 299 | |
| 300 | /* DB surface buffer */ |
| 301 | min_dpb_size += width_in_mb * 128; |
| 302 | |
| 303 | /* BP */ |
| 304 | tmp = max(width_in_mb, height_in_mb); |
| 305 | min_dpb_size += ALIGN(tmp * 7 * 16, 64); |
| 306 | break; |
| 307 | |
| 308 | case 3: /* MPEG2 */ |
| 309 | |
| 310 | /* reference picture buffer */ |
| 311 | min_dpb_size = image_size * 3; |
| 312 | break; |
| 313 | |
| 314 | case 4: /* MPEG4 */ |
| 315 | |
| 316 | /* reference picture buffer */ |
| 317 | min_dpb_size = image_size * 3; |
| 318 | |
| 319 | /* CM */ |
| 320 | min_dpb_size += width_in_mb * height_in_mb * 64; |
| 321 | |
| 322 | /* IT surface buffer */ |
| 323 | min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64); |
| 324 | break; |
| 325 | |
| 326 | default: |
| 327 | DRM_ERROR("UVD codec not handled %d!\n", stream_type); |
| 328 | return -EINVAL; |
| 329 | } |
| 330 | |
| 331 | if (width > pitch) { |
| 332 | DRM_ERROR("Invalid UVD decoding target pitch!\n"); |
| 333 | return -EINVAL; |
| 334 | } |
| 335 | |
| 336 | if (dpb_size < min_dpb_size) { |
| 337 | DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n", |
| 338 | dpb_size, min_dpb_size); |
| 339 | return -EINVAL; |
| 340 | } |
| 341 | |
| 342 | buf_sizes[0x1] = dpb_size; |
| 343 | buf_sizes[0x2] = image_size; |
| 344 | return 0; |
| 345 | } |
| 346 | |
| 347 | static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo, |
| 348 | unsigned offset, unsigned buf_sizes[]) |
| 349 | { |
| 350 | int32_t *msg, msg_type, handle; |
Alex Deucher | 85a129c | 2013-08-05 12:41:20 -0400 | [diff] [blame^] | 351 | unsigned img_size = 0; |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 352 | void *ptr; |
| 353 | |
| 354 | int i, r; |
| 355 | |
| 356 | if (offset & 0x3F) { |
| 357 | DRM_ERROR("UVD messages must be 64 byte aligned!\n"); |
| 358 | return -EINVAL; |
| 359 | } |
| 360 | |
Christian König | 112a6d0 | 2013-08-11 21:27:56 +0200 | [diff] [blame] | 361 | if (bo->tbo.sync_obj) { |
| 362 | r = radeon_fence_wait(bo->tbo.sync_obj, false); |
| 363 | if (r) { |
| 364 | DRM_ERROR("Failed waiting for UVD message (%d)!\n", r); |
| 365 | return r; |
| 366 | } |
| 367 | } |
| 368 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 369 | r = radeon_bo_kmap(bo, &ptr); |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 370 | if (r) { |
| 371 | DRM_ERROR("Failed mapping the UVD message (%d)!\n", r); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 372 | return r; |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 373 | } |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 374 | |
| 375 | msg = ptr + offset; |
| 376 | |
| 377 | msg_type = msg[1]; |
| 378 | handle = msg[2]; |
| 379 | |
| 380 | if (handle == 0) { |
| 381 | DRM_ERROR("Invalid UVD handle!\n"); |
| 382 | return -EINVAL; |
| 383 | } |
| 384 | |
| 385 | if (msg_type == 1) { |
| 386 | /* it's a decode msg, calc buffer sizes */ |
| 387 | r = radeon_uvd_cs_msg_decode(msg, buf_sizes); |
Alex Deucher | 85a129c | 2013-08-05 12:41:20 -0400 | [diff] [blame^] | 388 | /* calc image size (width * height) */ |
| 389 | img_size = msg[6] * msg[7]; |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 390 | radeon_bo_kunmap(bo); |
| 391 | if (r) |
| 392 | return r; |
| 393 | |
| 394 | } else if (msg_type == 2) { |
| 395 | /* it's a destroy msg, free the handle */ |
| 396 | for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) |
| 397 | atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0); |
| 398 | radeon_bo_kunmap(bo); |
| 399 | return 0; |
| 400 | } else { |
Alex Deucher | 85a129c | 2013-08-05 12:41:20 -0400 | [diff] [blame^] | 401 | /* it's a create msg, calc image size (width * height) */ |
| 402 | img_size = msg[7] * msg[8]; |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 403 | radeon_bo_kunmap(bo); |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 404 | |
| 405 | if (msg_type != 0) { |
| 406 | DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type); |
| 407 | return -EINVAL; |
| 408 | } |
| 409 | |
| 410 | /* it's a create msg, no special handling needed */ |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 411 | } |
| 412 | |
| 413 | /* create or decode, validate the handle */ |
| 414 | for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { |
| 415 | if (atomic_read(&p->rdev->uvd.handles[i]) == handle) |
| 416 | return 0; |
| 417 | } |
| 418 | |
| 419 | /* handle not found try to alloc a new one */ |
| 420 | for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { |
| 421 | if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) { |
| 422 | p->rdev->uvd.filp[i] = p->filp; |
Alex Deucher | 85a129c | 2013-08-05 12:41:20 -0400 | [diff] [blame^] | 423 | p->rdev->uvd.img_size[i] = img_size; |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 424 | return 0; |
| 425 | } |
| 426 | } |
| 427 | |
| 428 | DRM_ERROR("No more free UVD handles!\n"); |
| 429 | return -EINVAL; |
| 430 | } |
| 431 | |
| 432 | static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p, |
| 433 | int data0, int data1, |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 434 | unsigned buf_sizes[], bool *has_msg_cmd) |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 435 | { |
| 436 | struct radeon_cs_chunk *relocs_chunk; |
| 437 | struct radeon_cs_reloc *reloc; |
| 438 | unsigned idx, cmd, offset; |
| 439 | uint64_t start, end; |
| 440 | int r; |
| 441 | |
| 442 | relocs_chunk = &p->chunks[p->chunk_relocs_idx]; |
| 443 | offset = radeon_get_ib_value(p, data0); |
| 444 | idx = radeon_get_ib_value(p, data1); |
| 445 | if (idx >= relocs_chunk->length_dw) { |
| 446 | DRM_ERROR("Relocs at %d after relocations chunk end %d !\n", |
| 447 | idx, relocs_chunk->length_dw); |
| 448 | return -EINVAL; |
| 449 | } |
| 450 | |
| 451 | reloc = p->relocs_ptr[(idx / 4)]; |
| 452 | start = reloc->lobj.gpu_offset; |
| 453 | end = start + radeon_bo_size(reloc->robj); |
| 454 | start += offset; |
| 455 | |
| 456 | p->ib.ptr[data0] = start & 0xFFFFFFFF; |
| 457 | p->ib.ptr[data1] = start >> 32; |
| 458 | |
| 459 | cmd = radeon_get_ib_value(p, p->idx) >> 1; |
| 460 | |
| 461 | if (cmd < 0x4) { |
| 462 | if ((end - start) < buf_sizes[cmd]) { |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 463 | DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd, |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 464 | (unsigned)(end - start), buf_sizes[cmd]); |
| 465 | return -EINVAL; |
| 466 | } |
| 467 | |
| 468 | } else if (cmd != 0x100) { |
| 469 | DRM_ERROR("invalid UVD command %X!\n", cmd); |
| 470 | return -EINVAL; |
| 471 | } |
| 472 | |
Christian König | a92c7d5 | 2013-04-14 12:45:43 +0200 | [diff] [blame] | 473 | if ((start >> 28) != (end >> 28)) { |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 474 | DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n", |
| 475 | start, end); |
| 476 | return -EINVAL; |
| 477 | } |
| 478 | |
Christian König | a92c7d5 | 2013-04-14 12:45:43 +0200 | [diff] [blame] | 479 | /* TODO: is this still necessary on NI+ ? */ |
| 480 | if ((cmd == 0 || cmd == 0x3) && |
| 481 | (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) { |
| 482 | DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n", |
| 483 | start, end); |
| 484 | return -EINVAL; |
| 485 | } |
| 486 | |
| 487 | if (cmd == 0) { |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 488 | if (*has_msg_cmd) { |
| 489 | DRM_ERROR("More than one message in a UVD-IB!\n"); |
| 490 | return -EINVAL; |
| 491 | } |
| 492 | *has_msg_cmd = true; |
Christian König | a92c7d5 | 2013-04-14 12:45:43 +0200 | [diff] [blame] | 493 | r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes); |
| 494 | if (r) |
| 495 | return r; |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 496 | } else if (!*has_msg_cmd) { |
| 497 | DRM_ERROR("Message needed before other commands are send!\n"); |
| 498 | return -EINVAL; |
Christian König | a92c7d5 | 2013-04-14 12:45:43 +0200 | [diff] [blame] | 499 | } |
| 500 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 501 | return 0; |
| 502 | } |
| 503 | |
| 504 | static int radeon_uvd_cs_reg(struct radeon_cs_parser *p, |
| 505 | struct radeon_cs_packet *pkt, |
| 506 | int *data0, int *data1, |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 507 | unsigned buf_sizes[], |
| 508 | bool *has_msg_cmd) |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 509 | { |
| 510 | int i, r; |
| 511 | |
| 512 | p->idx++; |
| 513 | for (i = 0; i <= pkt->count; ++i) { |
| 514 | switch (pkt->reg + i*4) { |
| 515 | case UVD_GPCOM_VCPU_DATA0: |
| 516 | *data0 = p->idx; |
| 517 | break; |
| 518 | case UVD_GPCOM_VCPU_DATA1: |
| 519 | *data1 = p->idx; |
| 520 | break; |
| 521 | case UVD_GPCOM_VCPU_CMD: |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 522 | r = radeon_uvd_cs_reloc(p, *data0, *data1, |
| 523 | buf_sizes, has_msg_cmd); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 524 | if (r) |
| 525 | return r; |
| 526 | break; |
| 527 | case UVD_ENGINE_CNTL: |
| 528 | break; |
| 529 | default: |
| 530 | DRM_ERROR("Invalid reg 0x%X!\n", |
| 531 | pkt->reg + i*4); |
| 532 | return -EINVAL; |
| 533 | } |
| 534 | p->idx++; |
| 535 | } |
| 536 | return 0; |
| 537 | } |
| 538 | |
| 539 | int radeon_uvd_cs_parse(struct radeon_cs_parser *p) |
| 540 | { |
| 541 | struct radeon_cs_packet pkt; |
| 542 | int r, data0 = 0, data1 = 0; |
| 543 | |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 544 | /* does the IB has a msg command */ |
| 545 | bool has_msg_cmd = false; |
| 546 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 547 | /* minimum buffer sizes */ |
| 548 | unsigned buf_sizes[] = { |
| 549 | [0x00000000] = 2048, |
| 550 | [0x00000001] = 32 * 1024 * 1024, |
| 551 | [0x00000002] = 2048 * 1152 * 3, |
| 552 | [0x00000003] = 2048, |
| 553 | }; |
| 554 | |
| 555 | if (p->chunks[p->chunk_ib_idx].length_dw % 16) { |
| 556 | DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n", |
| 557 | p->chunks[p->chunk_ib_idx].length_dw); |
| 558 | return -EINVAL; |
| 559 | } |
| 560 | |
| 561 | if (p->chunk_relocs_idx == -1) { |
| 562 | DRM_ERROR("No relocation chunk !\n"); |
| 563 | return -EINVAL; |
| 564 | } |
| 565 | |
| 566 | |
| 567 | do { |
| 568 | r = radeon_cs_packet_parse(p, &pkt, p->idx); |
| 569 | if (r) |
| 570 | return r; |
| 571 | switch (pkt.type) { |
| 572 | case RADEON_PACKET_TYPE0: |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 573 | r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1, |
| 574 | buf_sizes, &has_msg_cmd); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 575 | if (r) |
| 576 | return r; |
| 577 | break; |
| 578 | case RADEON_PACKET_TYPE2: |
| 579 | p->idx += pkt.count + 2; |
| 580 | break; |
| 581 | default: |
| 582 | DRM_ERROR("Unknown packet type %d !\n", pkt.type); |
| 583 | return -EINVAL; |
| 584 | } |
| 585 | } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw); |
Christian König | 56cc2c1 | 2013-08-05 14:10:57 +0200 | [diff] [blame] | 586 | |
| 587 | if (!has_msg_cmd) { |
| 588 | DRM_ERROR("UVD-IBs need a msg command!\n"); |
| 589 | return -EINVAL; |
| 590 | } |
| 591 | |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 592 | return 0; |
| 593 | } |
| 594 | |
| 595 | static int radeon_uvd_send_msg(struct radeon_device *rdev, |
| 596 | int ring, struct radeon_bo *bo, |
| 597 | struct radeon_fence **fence) |
| 598 | { |
| 599 | struct ttm_validate_buffer tv; |
Maarten Lankhorst | ecff665 | 2013-06-27 13:48:17 +0200 | [diff] [blame] | 600 | struct ww_acquire_ctx ticket; |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 601 | struct list_head head; |
| 602 | struct radeon_ib ib; |
| 603 | uint64_t addr; |
| 604 | int i, r; |
| 605 | |
| 606 | memset(&tv, 0, sizeof(tv)); |
| 607 | tv.bo = &bo->tbo; |
| 608 | |
| 609 | INIT_LIST_HEAD(&head); |
| 610 | list_add(&tv.head, &head); |
| 611 | |
Maarten Lankhorst | ecff665 | 2013-06-27 13:48:17 +0200 | [diff] [blame] | 612 | r = ttm_eu_reserve_buffers(&ticket, &head); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 613 | if (r) |
| 614 | return r; |
| 615 | |
| 616 | radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_VRAM); |
| 617 | radeon_uvd_force_into_uvd_segment(bo); |
| 618 | |
| 619 | r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); |
Maarten Lankhorst | ecff665 | 2013-06-27 13:48:17 +0200 | [diff] [blame] | 620 | if (r) |
| 621 | goto err; |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 622 | |
| 623 | r = radeon_ib_get(rdev, ring, &ib, NULL, 16); |
Maarten Lankhorst | ecff665 | 2013-06-27 13:48:17 +0200 | [diff] [blame] | 624 | if (r) |
| 625 | goto err; |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 626 | |
| 627 | addr = radeon_bo_gpu_offset(bo); |
| 628 | ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0); |
| 629 | ib.ptr[1] = addr; |
| 630 | ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0); |
| 631 | ib.ptr[3] = addr >> 32; |
| 632 | ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0); |
| 633 | ib.ptr[5] = 0; |
| 634 | for (i = 6; i < 16; ++i) |
| 635 | ib.ptr[i] = PACKET2(0); |
| 636 | ib.length_dw = 16; |
| 637 | |
| 638 | r = radeon_ib_schedule(rdev, &ib, NULL); |
Maarten Lankhorst | ecff665 | 2013-06-27 13:48:17 +0200 | [diff] [blame] | 639 | if (r) |
| 640 | goto err; |
| 641 | ttm_eu_fence_buffer_objects(&ticket, &head, ib.fence); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 642 | |
| 643 | if (fence) |
| 644 | *fence = radeon_fence_ref(ib.fence); |
| 645 | |
| 646 | radeon_ib_free(rdev, &ib); |
| 647 | radeon_bo_unref(&bo); |
| 648 | return 0; |
Maarten Lankhorst | ecff665 | 2013-06-27 13:48:17 +0200 | [diff] [blame] | 649 | |
| 650 | err: |
| 651 | ttm_eu_backoff_reservation(&ticket, &head); |
| 652 | return r; |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 653 | } |
| 654 | |
| 655 | /* multiple fence commands without any stream commands in between can |
| 656 | crash the vcpu so just try to emmit a dummy create/destroy msg to |
| 657 | avoid this */ |
| 658 | int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring, |
| 659 | uint32_t handle, struct radeon_fence **fence) |
| 660 | { |
| 661 | struct radeon_bo *bo; |
| 662 | uint32_t *msg; |
| 663 | int r, i; |
| 664 | |
| 665 | r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true, |
| 666 | RADEON_GEM_DOMAIN_VRAM, NULL, &bo); |
| 667 | if (r) |
| 668 | return r; |
| 669 | |
| 670 | r = radeon_bo_reserve(bo, false); |
| 671 | if (r) { |
| 672 | radeon_bo_unref(&bo); |
| 673 | return r; |
| 674 | } |
| 675 | |
| 676 | r = radeon_bo_kmap(bo, (void **)&msg); |
| 677 | if (r) { |
| 678 | radeon_bo_unreserve(bo); |
| 679 | radeon_bo_unref(&bo); |
| 680 | return r; |
| 681 | } |
| 682 | |
| 683 | /* stitch together an UVD create msg */ |
Alex Deucher | 9b1be4d | 2013-06-07 10:04:54 -0400 | [diff] [blame] | 684 | msg[0] = cpu_to_le32(0x00000de4); |
| 685 | msg[1] = cpu_to_le32(0x00000000); |
| 686 | msg[2] = cpu_to_le32(handle); |
| 687 | msg[3] = cpu_to_le32(0x00000000); |
| 688 | msg[4] = cpu_to_le32(0x00000000); |
| 689 | msg[5] = cpu_to_le32(0x00000000); |
| 690 | msg[6] = cpu_to_le32(0x00000000); |
| 691 | msg[7] = cpu_to_le32(0x00000780); |
| 692 | msg[8] = cpu_to_le32(0x00000440); |
| 693 | msg[9] = cpu_to_le32(0x00000000); |
| 694 | msg[10] = cpu_to_le32(0x01b37000); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 695 | for (i = 11; i < 1024; ++i) |
Alex Deucher | 9b1be4d | 2013-06-07 10:04:54 -0400 | [diff] [blame] | 696 | msg[i] = cpu_to_le32(0x0); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 697 | |
| 698 | radeon_bo_kunmap(bo); |
| 699 | radeon_bo_unreserve(bo); |
| 700 | |
| 701 | return radeon_uvd_send_msg(rdev, ring, bo, fence); |
| 702 | } |
| 703 | |
| 704 | int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring, |
| 705 | uint32_t handle, struct radeon_fence **fence) |
| 706 | { |
| 707 | struct radeon_bo *bo; |
| 708 | uint32_t *msg; |
| 709 | int r, i; |
| 710 | |
| 711 | r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true, |
| 712 | RADEON_GEM_DOMAIN_VRAM, NULL, &bo); |
| 713 | if (r) |
| 714 | return r; |
| 715 | |
| 716 | r = radeon_bo_reserve(bo, false); |
| 717 | if (r) { |
| 718 | radeon_bo_unref(&bo); |
| 719 | return r; |
| 720 | } |
| 721 | |
| 722 | r = radeon_bo_kmap(bo, (void **)&msg); |
| 723 | if (r) { |
| 724 | radeon_bo_unreserve(bo); |
| 725 | radeon_bo_unref(&bo); |
| 726 | return r; |
| 727 | } |
| 728 | |
| 729 | /* stitch together an UVD destroy msg */ |
Alex Deucher | 9b1be4d | 2013-06-07 10:04:54 -0400 | [diff] [blame] | 730 | msg[0] = cpu_to_le32(0x00000de4); |
| 731 | msg[1] = cpu_to_le32(0x00000002); |
| 732 | msg[2] = cpu_to_le32(handle); |
| 733 | msg[3] = cpu_to_le32(0x00000000); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 734 | for (i = 4; i < 1024; ++i) |
Alex Deucher | 9b1be4d | 2013-06-07 10:04:54 -0400 | [diff] [blame] | 735 | msg[i] = cpu_to_le32(0x0); |
Christian König | f2ba57b | 2013-04-08 12:41:29 +0200 | [diff] [blame] | 736 | |
| 737 | radeon_bo_kunmap(bo); |
| 738 | radeon_bo_unreserve(bo); |
| 739 | |
| 740 | return radeon_uvd_send_msg(rdev, ring, bo, fence); |
| 741 | } |
Christian König | 55b51c8 | 2013-04-18 15:25:59 +0200 | [diff] [blame] | 742 | |
Alex Deucher | 85a129c | 2013-08-05 12:41:20 -0400 | [diff] [blame^] | 743 | /** |
| 744 | * radeon_uvd_count_handles - count number of open streams |
| 745 | * |
| 746 | * @rdev: radeon_device pointer |
| 747 | * @sd: number of SD streams |
| 748 | * @hd: number of HD streams |
| 749 | * |
| 750 | * Count the number of open SD/HD streams as a hint for power mangement |
| 751 | */ |
| 752 | static void radeon_uvd_count_handles(struct radeon_device *rdev, |
| 753 | unsigned *sd, unsigned *hd) |
| 754 | { |
| 755 | unsigned i; |
| 756 | |
| 757 | *sd = 0; |
| 758 | *hd = 0; |
| 759 | |
| 760 | for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) { |
| 761 | if (!atomic_read(&rdev->uvd.handles[i])) |
| 762 | continue; |
| 763 | |
| 764 | if (rdev->uvd.img_size[i] >= 720*576) |
| 765 | ++(*hd); |
| 766 | else |
| 767 | ++(*sd); |
| 768 | } |
| 769 | } |
| 770 | |
Christian König | 55b51c8 | 2013-04-18 15:25:59 +0200 | [diff] [blame] | 771 | static void radeon_uvd_idle_work_handler(struct work_struct *work) |
| 772 | { |
| 773 | struct radeon_device *rdev = |
| 774 | container_of(work, struct radeon_device, uvd.idle_work.work); |
| 775 | |
Alex Deucher | 8a22755 | 2013-06-21 15:12:57 -0400 | [diff] [blame] | 776 | if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) { |
| 777 | if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) { |
| 778 | mutex_lock(&rdev->pm.mutex); |
| 779 | rdev->pm.dpm.uvd_active = false; |
| 780 | mutex_unlock(&rdev->pm.mutex); |
| 781 | radeon_pm_compute_clocks(rdev); |
| 782 | } else { |
| 783 | radeon_set_uvd_clocks(rdev, 0, 0); |
| 784 | } |
| 785 | } else { |
Christian König | 55b51c8 | 2013-04-18 15:25:59 +0200 | [diff] [blame] | 786 | schedule_delayed_work(&rdev->uvd.idle_work, |
| 787 | msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS)); |
Alex Deucher | 8a22755 | 2013-06-21 15:12:57 -0400 | [diff] [blame] | 788 | } |
Christian König | 55b51c8 | 2013-04-18 15:25:59 +0200 | [diff] [blame] | 789 | } |
| 790 | |
| 791 | void radeon_uvd_note_usage(struct radeon_device *rdev) |
| 792 | { |
| 793 | bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work); |
| 794 | set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work, |
| 795 | msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS)); |
Alex Deucher | 8a22755 | 2013-06-21 15:12:57 -0400 | [diff] [blame] | 796 | if (set_clocks) { |
| 797 | if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) { |
| 798 | /* XXX pick SD/HD/MVC */ |
| 799 | radeon_dpm_enable_power_state(rdev, POWER_STATE_TYPE_INTERNAL_UVD); |
| 800 | } else { |
| 801 | radeon_set_uvd_clocks(rdev, 53300, 40000); |
| 802 | } |
| 803 | } |
Christian König | 55b51c8 | 2013-04-18 15:25:59 +0200 | [diff] [blame] | 804 | } |
Christian König | facd112 | 2013-04-29 11:55:02 +0200 | [diff] [blame] | 805 | |
| 806 | static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq, |
| 807 | unsigned target_freq, |
| 808 | unsigned pd_min, |
| 809 | unsigned pd_even) |
| 810 | { |
| 811 | unsigned post_div = vco_freq / target_freq; |
| 812 | |
| 813 | /* adjust to post divider minimum value */ |
| 814 | if (post_div < pd_min) |
| 815 | post_div = pd_min; |
| 816 | |
| 817 | /* we alway need a frequency less than or equal the target */ |
| 818 | if ((vco_freq / post_div) > target_freq) |
| 819 | post_div += 1; |
| 820 | |
| 821 | /* post dividers above a certain value must be even */ |
| 822 | if (post_div > pd_even && post_div % 2) |
| 823 | post_div += 1; |
| 824 | |
| 825 | return post_div; |
| 826 | } |
| 827 | |
| 828 | /** |
| 829 | * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers |
| 830 | * |
| 831 | * @rdev: radeon_device pointer |
| 832 | * @vclk: wanted VCLK |
| 833 | * @dclk: wanted DCLK |
| 834 | * @vco_min: minimum VCO frequency |
| 835 | * @vco_max: maximum VCO frequency |
| 836 | * @fb_factor: factor to multiply vco freq with |
| 837 | * @fb_mask: limit and bitmask for feedback divider |
| 838 | * @pd_min: post divider minimum |
| 839 | * @pd_max: post divider maximum |
| 840 | * @pd_even: post divider must be even above this value |
| 841 | * @optimal_fb_div: resulting feedback divider |
| 842 | * @optimal_vclk_div: resulting vclk post divider |
| 843 | * @optimal_dclk_div: resulting dclk post divider |
| 844 | * |
| 845 | * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs). |
| 846 | * Returns zero on success -EINVAL on error. |
| 847 | */ |
| 848 | int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev, |
| 849 | unsigned vclk, unsigned dclk, |
| 850 | unsigned vco_min, unsigned vco_max, |
| 851 | unsigned fb_factor, unsigned fb_mask, |
| 852 | unsigned pd_min, unsigned pd_max, |
| 853 | unsigned pd_even, |
| 854 | unsigned *optimal_fb_div, |
| 855 | unsigned *optimal_vclk_div, |
| 856 | unsigned *optimal_dclk_div) |
| 857 | { |
| 858 | unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq; |
| 859 | |
| 860 | /* start off with something large */ |
| 861 | unsigned optimal_score = ~0; |
| 862 | |
| 863 | /* loop through vco from low to high */ |
| 864 | vco_min = max(max(vco_min, vclk), dclk); |
| 865 | for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) { |
| 866 | |
| 867 | uint64_t fb_div = (uint64_t)vco_freq * fb_factor; |
| 868 | unsigned vclk_div, dclk_div, score; |
| 869 | |
| 870 | do_div(fb_div, ref_freq); |
| 871 | |
| 872 | /* fb div out of range ? */ |
| 873 | if (fb_div > fb_mask) |
| 874 | break; /* it can oly get worse */ |
| 875 | |
| 876 | fb_div &= fb_mask; |
| 877 | |
| 878 | /* calc vclk divider with current vco freq */ |
| 879 | vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk, |
| 880 | pd_min, pd_even); |
| 881 | if (vclk_div > pd_max) |
| 882 | break; /* vco is too big, it has to stop */ |
| 883 | |
| 884 | /* calc dclk divider with current vco freq */ |
| 885 | dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk, |
| 886 | pd_min, pd_even); |
| 887 | if (vclk_div > pd_max) |
| 888 | break; /* vco is too big, it has to stop */ |
| 889 | |
| 890 | /* calc score with current vco freq */ |
| 891 | score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div); |
| 892 | |
| 893 | /* determine if this vco setting is better than current optimal settings */ |
| 894 | if (score < optimal_score) { |
| 895 | *optimal_fb_div = fb_div; |
| 896 | *optimal_vclk_div = vclk_div; |
| 897 | *optimal_dclk_div = dclk_div; |
| 898 | optimal_score = score; |
| 899 | if (optimal_score == 0) |
| 900 | break; /* it can't get better than this */ |
| 901 | } |
| 902 | } |
| 903 | |
| 904 | /* did we found a valid setup ? */ |
| 905 | if (optimal_score == ~0) |
| 906 | return -EINVAL; |
| 907 | |
| 908 | return 0; |
| 909 | } |
| 910 | |
| 911 | int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev, |
| 912 | unsigned cg_upll_func_cntl) |
| 913 | { |
| 914 | unsigned i; |
| 915 | |
| 916 | /* make sure UPLL_CTLREQ is deasserted */ |
| 917 | WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK); |
| 918 | |
| 919 | mdelay(10); |
| 920 | |
| 921 | /* assert UPLL_CTLREQ */ |
| 922 | WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK); |
| 923 | |
| 924 | /* wait for CTLACK and CTLACK2 to get asserted */ |
| 925 | for (i = 0; i < 100; ++i) { |
| 926 | uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK; |
| 927 | if ((RREG32(cg_upll_func_cntl) & mask) == mask) |
| 928 | break; |
| 929 | mdelay(10); |
| 930 | } |
| 931 | |
| 932 | /* deassert UPLL_CTLREQ */ |
| 933 | WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK); |
| 934 | |
| 935 | if (i == 100) { |
| 936 | DRM_ERROR("Timeout setting UVD clocks!\n"); |
| 937 | return -ETIMEDOUT; |
| 938 | } |
| 939 | |
| 940 | return 0; |
| 941 | } |