drivers/gpu/drm/radeon/vce_v1_0.c

   1 /*
   2  * Copyright 2013 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  * Authors: Christian König <christian.koenig@amd.com>
  26  */
  27
  28 #include <linux/firmware.h>
  29 #include <drm/drmP.h>
  30 #include "radeon.h"
  31 #include "radeon_asic.h"
  32 #include "sid.h"
  33
  34 #define VCE_V1_0_FW_SIZE        (256 * 1024)
  35 #define VCE_V1_0_STACK_SIZE     (64 * 1024)
  36 #define VCE_V1_0_DATA_SIZE      (7808 * (RADEON_MAX_VCE_HANDLES + 1))
  37
  38 struct vce_v1_0_fw_signature
  39 {
  40         int32_t off;
  41         uint32_t len;
  42         int32_t num;
  43         struct {
  44                 uint32_t chip_id;
  45                 uint32_t keyselect;
  46                 uint32_t nonce[4];
  47                 uint32_t sigval[4];
  48         } val[8];
  49 };
  50
  51 /**
  52  * vce_v1_0_get_rptr - get read pointer
  53  *
  54  * @rdev: radeon_device pointer
  55  * @ring: radeon_ring pointer
  56  *
  57  * Returns the current hardware read pointer
  58  */
  59 uint32_t vce_v1_0_get_rptr(struct radeon_device *rdev,
  60                            struct radeon_ring *ring)
  61 {
  62         if (ring->idx == TN_RING_TYPE_VCE1_INDEX)
  63                 return RREG32(VCE_RB_RPTR);
  64         else
  65                 return RREG32(VCE_RB_RPTR2);
  66 }
  67
  68 /**
  69  * vce_v1_0_get_wptr - get write pointer
  70  *
  71  * @rdev: radeon_device pointer
  72  * @ring: radeon_ring pointer
  73  *
  74  * Returns the current hardware write pointer
  75  */
  76 uint32_t vce_v1_0_get_wptr(struct radeon_device *rdev,
  77                            struct radeon_ring *ring)
  78 {
  79         if (ring->idx == TN_RING_TYPE_VCE1_INDEX)
  80                 return RREG32(VCE_RB_WPTR);
  81         else
  82                 return RREG32(VCE_RB_WPTR2);
  83 }
  84
  85 /**
  86  * vce_v1_0_set_wptr - set write pointer
  87  *
  88  * @rdev: radeon_device pointer
  89  * @ring: radeon_ring pointer
  90  *
  91  * Commits the write pointer to the hardware
  92  */
  93 void vce_v1_0_set_wptr(struct radeon_device *rdev,
  94                        struct radeon_ring *ring)
  95 {
  96         if (ring->idx == TN_RING_TYPE_VCE1_INDEX)
  97                 WREG32(VCE_RB_WPTR, ring->wptr);
  98         else
  99                 WREG32(VCE_RB_WPTR2, ring->wptr);
 100 }
 101
 102 void vce_v1_0_enable_mgcg(struct radeon_device *rdev, bool enable)
 103 {
 104         u32 tmp;
 105
 106         if (enable && (rdev->cg_flags & RADEON_CG_SUPPORT_VCE_MGCG)) {
 107                 tmp = RREG32(VCE_CLOCK_GATING_A);
 108                 tmp |= CGC_DYN_CLOCK_MODE;
 109                 WREG32(VCE_CLOCK_GATING_A, tmp);
 110
 111                 tmp = RREG32(VCE_UENC_CLOCK_GATING);
 112                 tmp &= ~0x1ff000;
 113                 tmp |= 0xff800000;
 114                 WREG32(VCE_UENC_CLOCK_GATING, tmp);
 115
 116                 tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
 117                 tmp &= ~0x3ff;
 118                 WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
 119         } else {
 120                 tmp = RREG32(VCE_CLOCK_GATING_A);
 121                 tmp &= ~CGC_DYN_CLOCK_MODE;
 122                 WREG32(VCE_CLOCK_GATING_A, tmp);
 123
 124                 tmp = RREG32(VCE_UENC_CLOCK_GATING);
 125                 tmp |= 0x1ff000;
 126                 tmp &= ~0xff800000;
 127                 WREG32(VCE_UENC_CLOCK_GATING, tmp);
 128
 129                 tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
 130                 tmp |= 0x3ff;
 131                 WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
 132         }
 133 }
 134
 135 static void vce_v1_0_init_cg(struct radeon_device *rdev)
 136 {
 137         u32 tmp;
 138
 139         tmp = RREG32(VCE_CLOCK_GATING_A);
 140         tmp |= CGC_DYN_CLOCK_MODE;
 141         WREG32(VCE_CLOCK_GATING_A, tmp);
 142
 143         tmp = RREG32(VCE_CLOCK_GATING_B);
 144         tmp |= 0x1e;
 145         tmp &= ~0xe100e1;
 146         WREG32(VCE_CLOCK_GATING_B, tmp);
 147
 148         tmp = RREG32(VCE_UENC_CLOCK_GATING);
 149         tmp &= ~0xff9ff000;
 150         WREG32(VCE_UENC_CLOCK_GATING, tmp);
 151
 152         tmp = RREG32(VCE_UENC_REG_CLOCK_GATING);
 153         tmp &= ~0x3ff;
 154         WREG32(VCE_UENC_REG_CLOCK_GATING, tmp);
 155 }
 156
 157 int vce_v1_0_load_fw(struct radeon_device *rdev, uint32_t *data)
 158 {
 159         struct vce_v1_0_fw_signature *sign = (void*)rdev->vce_fw->data;
 160         uint32_t chip_id;
 161         int i;
 162
 163         switch (rdev->family) {
 164         case CHIP_TAHITI:
 165                 chip_id = 0x01000014;
 166                 break;
 167         case CHIP_VERDE:
 168                 chip_id = 0x01000015;
 169                 break;
 170         case CHIP_PITCAIRN:
 171         case CHIP_OLAND:
 172                 chip_id = 0x01000016;
 173                 break;
 174         case CHIP_ARUBA:
 175                 chip_id = 0x01000017;
 176                 break;
 177         default:
 178                 return -EINVAL;
 179         }
 180
 181         for (i = 0; i < sign->num; ++i) {
 182                 if (sign->val[i].chip_id == chip_id)
 183                         break;
 184         }
 185
 186         if (i == sign->num)
 187                 return -EINVAL;
 188
 189         data += (256 - 64) / 4;
 190         data[0] = sign->val[i].nonce[0];
 191         data[1] = sign->val[i].nonce[1];
 192         data[2] = sign->val[i].nonce[2];
 193         data[3] = sign->val[i].nonce[3];
 194         data[4] = sign->len + 64;
 195
 196         memset(&data[5], 0, 44);
 197         memcpy(&data[16], &sign[1], rdev->vce_fw->size - sizeof(*sign));
 198
 199         data += data[4] / 4;
 200         data[0] = sign->val[i].sigval[0];
 201         data[1] = sign->val[i].sigval[1];
 202         data[2] = sign->val[i].sigval[2];
 203         data[3] = sign->val[i].sigval[3];
 204
 205         rdev->vce.keyselect = sign->val[i].keyselect;
 206
 207         return 0;
 208 }
 209
 210 unsigned vce_v1_0_bo_size(struct radeon_device *rdev)
 211 {
 212         WARN_ON(VCE_V1_0_FW_SIZE < rdev->vce_fw->size);
 213         return VCE_V1_0_FW_SIZE + VCE_V1_0_STACK_SIZE + VCE_V1_0_DATA_SIZE;
 214 }
 215
 216 int vce_v1_0_resume(struct radeon_device *rdev)
 217 {
 218         uint64_t addr = rdev->vce.gpu_addr;
 219         uint32_t size;
 220         int i;
 221
 222         WREG32_P(VCE_CLOCK_GATING_A, 0, ~(1 << 16));
 223         WREG32_P(VCE_UENC_CLOCK_GATING, 0x1FF000, ~0xFF9FF000);
 224         WREG32_P(VCE_UENC_REG_CLOCK_GATING, 0x3F, ~0x3F);
 225         WREG32(VCE_CLOCK_GATING_B, 0);
 226
 227         WREG32_P(VCE_LMI_FW_PERIODIC_CTRL, 0x4, ~0x4);
 228
 229         WREG32(VCE_LMI_CTRL, 0x00398000);
 230         WREG32_P(VCE_LMI_CACHE_CTRL, 0x0, ~0x1);
 231         WREG32(VCE_LMI_SWAP_CNTL, 0);
 232         WREG32(VCE_LMI_SWAP_CNTL1, 0);
 233         WREG32(VCE_LMI_VM_CTRL, 0);
 234
 235         WREG32(VCE_VCPU_SCRATCH7, RADEON_MAX_VCE_HANDLES);
 236
 237         addr += 256;
 238         size = VCE_V1_0_FW_SIZE;
 239         WREG32(VCE_VCPU_CACHE_OFFSET0, addr & 0x7fffffff);
 240         WREG32(VCE_VCPU_CACHE_SIZE0, size);
 241
 242         addr += size;
 243         size = VCE_V1_0_STACK_SIZE;
 244         WREG32(VCE_VCPU_CACHE_OFFSET1, addr & 0x7fffffff);
 245         WREG32(VCE_VCPU_CACHE_SIZE1, size);
 246
 247         addr += size;
 248         size = VCE_V1_0_DATA_SIZE;
 249         WREG32(VCE_VCPU_CACHE_OFFSET2, addr & 0x7fffffff);
 250         WREG32(VCE_VCPU_CACHE_SIZE2, size);
 251
 252         WREG32_P(VCE_LMI_CTRL2, 0x0, ~0x100);
 253
 254         WREG32(VCE_LMI_FW_START_KEYSEL, rdev->vce.keyselect);
 255
 256         for (i = 0; i < 10; ++i) {
 257                 mdelay(10);
 258                 if (RREG32(VCE_FW_REG_STATUS) & VCE_FW_REG_STATUS_DONE)
 259                         break;
 260         }
 261
 262         if (i == 10)
 263                 return -ETIMEDOUT;
 264
 265         if (!(RREG32(VCE_FW_REG_STATUS) & VCE_FW_REG_STATUS_PASS))
 266                 return -EINVAL;
 267
 268         for (i = 0; i < 10; ++i) {
 269                 mdelay(10);
 270                 if (!(RREG32(VCE_FW_REG_STATUS) & VCE_FW_REG_STATUS_BUSY))
 271                         break;
 272         }
 273
 274         if (i == 10)
 275                 return -ETIMEDOUT;
 276
 277         vce_v1_0_init_cg(rdev);
 278
 279         return 0;
 280 }
 281
 282 /**
 283  * vce_v1_0_start - start VCE block
 284  *
 285  * @rdev: radeon_device pointer
 286  *
 287  * Setup and start the VCE block
 288  */
 289 int vce_v1_0_start(struct radeon_device *rdev)
 290 {
 291         struct radeon_ring *ring;
 292         int i, j, r;
 293
 294         /* set BUSY flag */
 295         WREG32_P(VCE_STATUS, 1, ~1);
 296
 297         ring = &rdev->ring[TN_RING_TYPE_VCE1_INDEX];
 298         WREG32(VCE_RB_RPTR, ring->wptr);
 299         WREG32(VCE_RB_WPTR, ring->wptr);
 300         WREG32(VCE_RB_BASE_LO, ring->gpu_addr);
 301         WREG32(VCE_RB_BASE_HI, upper_32_bits(ring->gpu_addr));
 302         WREG32(VCE_RB_SIZE, ring->ring_size / 4);
 303
 304         ring = &rdev->ring[TN_RING_TYPE_VCE2_INDEX];
 305         WREG32(VCE_RB_RPTR2, ring->wptr);
 306         WREG32(VCE_RB_WPTR2, ring->wptr);
 307         WREG32(VCE_RB_BASE_LO2, ring->gpu_addr);
 308         WREG32(VCE_RB_BASE_HI2, upper_32_bits(ring->gpu_addr));
 309         WREG32(VCE_RB_SIZE2, ring->ring_size / 4);
 310
 311         WREG32_P(VCE_VCPU_CNTL, VCE_CLK_EN, ~VCE_CLK_EN);
 312
 313         WREG32_P(VCE_SOFT_RESET,
 314                  VCE_ECPU_SOFT_RESET |
 315                  VCE_FME_SOFT_RESET, ~(
 316                  VCE_ECPU_SOFT_RESET |
 317                  VCE_FME_SOFT_RESET));
 318
 319         mdelay(100);
 320
 321         WREG32_P(VCE_SOFT_RESET, 0, ~(
 322                  VCE_ECPU_SOFT_RESET |
 323                  VCE_FME_SOFT_RESET));
 324
 325         for (i = 0; i < 10; ++i) {
 326                 uint32_t status;
 327                 for (j = 0; j < 100; ++j) {
 328                         status = RREG32(VCE_STATUS);
 329                         if (status & 2)
 330                                 break;
 331                         mdelay(10);
 332                 }
 333                 r = 0;
 334                 if (status & 2)
 335                         break;
 336
 337                 DRM_ERROR("VCE not responding, trying to reset the ECPU!!!\n");
 338                 WREG32_P(VCE_SOFT_RESET, VCE_ECPU_SOFT_RESET, ~VCE_ECPU_SOFT_RESET);
 339                 mdelay(10);
 340                 WREG32_P(VCE_SOFT_RESET, 0, ~VCE_ECPU_SOFT_RESET);
 341                 mdelay(10);
 342                 r = -1;
 343         }
 344
 345         /* clear BUSY flag */
 346         WREG32_P(VCE_STATUS, 0, ~1);
 347
 348         if (r) {
 349                 DRM_ERROR("VCE not responding, giving up!!!\n");
 350                 return r;
 351         }
 352
 353         return 0;
 354 }
 355
 356 int vce_v1_0_init(struct radeon_device *rdev)
 357 {
 358         struct radeon_ring *ring;
 359         int r;
 360
 361         r = vce_v1_0_start(rdev);
 362         if (r)
 363                 return r;
 364
 365         ring = &rdev->ring[TN_RING_TYPE_VCE1_INDEX];
 366         ring->ready = true;
 367         r = radeon_ring_test(rdev, TN_RING_TYPE_VCE1_INDEX, ring);
 368         if (r) {
 369                 ring->ready = false;
 370                 return r;
 371         }
 372
 373         ring = &rdev->ring[TN_RING_TYPE_VCE2_INDEX];
 374         ring->ready = true;
 375         r = radeon_ring_test(rdev, TN_RING_TYPE_VCE2_INDEX, ring);
 376         if (r) {
 377                 ring->ready = false;
 378                 return r;
 379         }
 380
 381         DRM_INFO("VCE initialized successfully.\n");
 382
 383         return 0;
 384 }