drivers/gpu/drm/amd/amdgpu/psp_v10_0.c

   1 /*
   2  * Copyright 2016 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Author: Huang Rui
  23  *
  24  */
  25
  26 #include <linux/firmware.h>
  27 #include <linux/module.h>
  28 #include <linux/pci.h>
  29
  30 #include "amdgpu.h"
  31 #include "amdgpu_psp.h"
  32 #include "amdgpu_ucode.h"
  33 #include "soc15_common.h"
  34 #include "psp_v10_0.h"
  35
  36 #include "mp/mp_10_0_offset.h"
  37 #include "gc/gc_9_1_offset.h"
  38 #include "sdma0/sdma0_4_1_offset.h"
  39
  40 MODULE_FIRMWARE("amdgpu/raven_asd.bin");
  41 MODULE_FIRMWARE("amdgpu/picasso_asd.bin");
  42 MODULE_FIRMWARE("amdgpu/raven2_asd.bin");
  43 MODULE_FIRMWARE("amdgpu/picasso_ta.bin");
  44 MODULE_FIRMWARE("amdgpu/raven2_ta.bin");
  45 MODULE_FIRMWARE("amdgpu/raven_ta.bin");
  46
  47 static int psp_v10_0_init_microcode(struct psp_context *psp)
  48 {
  49         struct amdgpu_device *adev = psp->adev;
  50         const char *chip_name;
  51         char fw_name[30];
  52         int err = 0;
  53         const struct psp_firmware_header_v1_0 *hdr;
  54         const struct ta_firmware_header_v1_0 *ta_hdr;
  55         DRM_DEBUG("\n");
  56
  57         switch (adev->asic_type) {
  58         case CHIP_RAVEN:
  59                 if (adev->rev_id >= 0x8)
  60                         chip_name = "raven2";
  61                 else if (adev->pdev->device == 0x15d8)
  62                         chip_name = "picasso";
  63                 else
  64                         chip_name = "raven";
  65                 break;
  66         default: BUG();
  67         }
  68
  69         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_asd.bin", chip_name);
  70         err = request_firmware(&adev->psp.asd_fw, fw_name, adev->dev);
  71         if (err)
  72                 goto out;
  73
  74         err = amdgpu_ucode_validate(adev->psp.asd_fw);
  75         if (err)
  76                 goto out;
  77
  78         hdr = (const struct psp_firmware_header_v1_0 *)adev->psp.asd_fw->data;
  79         adev->psp.asd_fw_version = le32_to_cpu(hdr->header.ucode_version);
  80         adev->psp.asd_feature_version = le32_to_cpu(hdr->ucode_feature_version);
  81         adev->psp.asd_ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes);
  82         adev->psp.asd_start_addr = (uint8_t *)hdr +
  83                                 le32_to_cpu(hdr->header.ucode_array_offset_bytes);
  84
  85         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_ta.bin", chip_name);
  86         err = request_firmware(&adev->psp.ta_fw, fw_name, adev->dev);
  87         if (err) {
  88                 release_firmware(adev->psp.ta_fw);
  89                 adev->psp.ta_fw = NULL;
  90                 dev_info(adev->dev,
  91                          "psp v10.0: Failed to load firmware \"%s\"\n",
  92                          fw_name);
  93         } else {
  94                 err = amdgpu_ucode_validate(adev->psp.ta_fw);
  95                 if (err)
  96                         goto out2;
  97
  98                 ta_hdr = (const struct ta_firmware_header_v1_0 *)
  99                                  adev->psp.ta_fw->data;
 100                 adev->psp.ta_hdcp_ucode_version =
 101                         le32_to_cpu(ta_hdr->ta_hdcp_ucode_version);
 102                 adev->psp.ta_hdcp_ucode_size =
 103                         le32_to_cpu(ta_hdr->ta_hdcp_size_bytes);
 104                 adev->psp.ta_hdcp_start_addr =
 105                         (uint8_t *)ta_hdr +
 106                         le32_to_cpu(ta_hdr->header.ucode_array_offset_bytes);
 107
 108                 adev->psp.ta_fw_version = le32_to_cpu(ta_hdr->header.ucode_version);
 109
 110                 adev->psp.ta_dtm_ucode_version =
 111                         le32_to_cpu(ta_hdr->ta_dtm_ucode_version);
 112                 adev->psp.ta_dtm_ucode_size =
 113                         le32_to_cpu(ta_hdr->ta_dtm_size_bytes);
 114                 adev->psp.ta_dtm_start_addr =
 115                         (uint8_t *)adev->psp.ta_hdcp_start_addr +
 116                         le32_to_cpu(ta_hdr->ta_dtm_offset_bytes);
 117         }
 118
 119         return 0;
 120
 121 out2:
 122         release_firmware(adev->psp.ta_fw);
 123         adev->psp.ta_fw = NULL;
 124 out:
 125         if (err) {
 126                 dev_err(adev->dev,
 127                         "psp v10.0: Failed to load firmware \"%s\"\n",
 128                         fw_name);
 129                 release_firmware(adev->psp.asd_fw);
 130                 adev->psp.asd_fw = NULL;
 131         }
 132
 133         return err;
 134 }
 135
 136 static int psp_v10_0_ring_init(struct psp_context *psp,
 137                                enum psp_ring_type ring_type)
 138 {
 139         int ret = 0;
 140         struct psp_ring *ring;
 141         struct amdgpu_device *adev = psp->adev;
 142
 143         ring = &psp->km_ring;
 144
 145         ring->ring_type = ring_type;
 146
 147         /* allocate 4k Page of Local Frame Buffer memory for ring */
 148         ring->ring_size = 0x1000;
 149         ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE,
 150                                       AMDGPU_GEM_DOMAIN_VRAM,
 151                                       &adev->firmware.rbuf,
 152                                       &ring->ring_mem_mc_addr,
 153                                       (void **)&ring->ring_mem);
 154         if (ret) {
 155                 ring->ring_size = 0;
 156                 return ret;
 157         }
 158
 159         return 0;
 160 }
 161
 162 static int psp_v10_0_ring_create(struct psp_context *psp,
 163                                  enum psp_ring_type ring_type)
 164 {
 165         int ret = 0;
 166         unsigned int psp_ring_reg = 0;
 167         struct psp_ring *ring = &psp->km_ring;
 168         struct amdgpu_device *adev = psp->adev;
 169
 170         /* Write low address of the ring to C2PMSG_69 */
 171         psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
 172         WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg);
 173         /* Write high address of the ring to C2PMSG_70 */
 174         psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
 175         WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg);
 176         /* Write size of ring to C2PMSG_71 */
 177         psp_ring_reg = ring->ring_size;
 178         WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg);
 179         /* Write the ring initialization command to C2PMSG_64 */
 180         psp_ring_reg = ring_type;
 181         psp_ring_reg = psp_ring_reg << 16;
 182         WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
 183
 184         /* There might be handshake issue with hardware which needs delay */
 185         mdelay(20);
 186
 187         /* Wait for response flag (bit 31) in C2PMSG_64 */
 188         ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
 189                            0x80000000, 0x8000FFFF, false);
 190
 191         return ret;
 192 }
 193
 194 static int psp_v10_0_ring_stop(struct psp_context *psp,
 195                                enum psp_ring_type ring_type)
 196 {
 197         int ret = 0;
 198         unsigned int psp_ring_reg = 0;
 199         struct amdgpu_device *adev = psp->adev;
 200
 201         /* Write the ring destroy command to C2PMSG_64 */
 202         psp_ring_reg = 3 << 16;
 203         WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
 204
 205         /* There might be handshake issue with hardware which needs delay */
 206         mdelay(20);
 207
 208         /* Wait for response flag (bit 31) in C2PMSG_64 */
 209         ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
 210                            0x80000000, 0x80000000, false);
 211
 212         return ret;
 213 }
 214
 215 static int psp_v10_0_ring_destroy(struct psp_context *psp,
 216                                   enum psp_ring_type ring_type)
 217 {
 218         int ret = 0;
 219         struct psp_ring *ring = &psp->km_ring;
 220         struct amdgpu_device *adev = psp->adev;
 221
 222         ret = psp_v10_0_ring_stop(psp, ring_type);
 223         if (ret)
 224                 DRM_ERROR("Fail to stop psp ring\n");
 225
 226         amdgpu_bo_free_kernel(&adev->firmware.rbuf,
 227                               &ring->ring_mem_mc_addr,
 228                               (void **)&ring->ring_mem);
 229
 230         return ret;
 231 }
 232
 233 static int psp_v10_0_cmd_submit(struct psp_context *psp,
 234                                 uint64_t cmd_buf_mc_addr, uint64_t fence_mc_addr,
 235                                 int index)
 236 {
 237         unsigned int psp_write_ptr_reg = 0;
 238         struct psp_gfx_rb_frame * write_frame = psp->km_ring.ring_mem;
 239         struct psp_ring *ring = &psp->km_ring;
 240         struct psp_gfx_rb_frame *ring_buffer_start = ring->ring_mem;
 241         struct psp_gfx_rb_frame *ring_buffer_end = ring_buffer_start +
 242                 ring->ring_size / sizeof(struct psp_gfx_rb_frame) - 1;
 243         struct amdgpu_device *adev = psp->adev;
 244         uint32_t ring_size_dw = ring->ring_size / 4;
 245         uint32_t rb_frame_size_dw = sizeof(struct psp_gfx_rb_frame) / 4;
 246
 247         /* KM (GPCOM) prepare write pointer */
 248         psp_write_ptr_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67);
 249
 250         /* Update KM RB frame pointer to new frame */
 251         if ((psp_write_ptr_reg % ring_size_dw) == 0)
 252                 write_frame = ring_buffer_start;
 253         else
 254                 write_frame = ring_buffer_start + (psp_write_ptr_reg / rb_frame_size_dw);
 255         /* Check invalid write_frame ptr address */
 256         if ((write_frame < ring_buffer_start) || (ring_buffer_end < write_frame)) {
 257                 DRM_ERROR("ring_buffer_start = %p; ring_buffer_end = %p; write_frame = %p\n",
 258                           ring_buffer_start, ring_buffer_end, write_frame);
 259                 DRM_ERROR("write_frame is pointing to address out of bounds\n");
 260                 return -EINVAL;
 261         }
 262
 263         /* Initialize KM RB frame */
 264         memset(write_frame, 0, sizeof(struct psp_gfx_rb_frame));
 265
 266         /* Update KM RB frame */
 267         write_frame->cmd_buf_addr_hi = upper_32_bits(cmd_buf_mc_addr);
 268         write_frame->cmd_buf_addr_lo = lower_32_bits(cmd_buf_mc_addr);
 269         write_frame->fence_addr_hi = upper_32_bits(fence_mc_addr);
 270         write_frame->fence_addr_lo = lower_32_bits(fence_mc_addr);
 271         write_frame->fence_value = index;
 272         amdgpu_asic_flush_hdp(adev, NULL);
 273
 274         /* Update the write Pointer in DWORDs */
 275         psp_write_ptr_reg = (psp_write_ptr_reg + rb_frame_size_dw) % ring_size_dw;
 276         WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, psp_write_ptr_reg);
 277
 278         return 0;
 279 }
 280
 281 static int
 282 psp_v10_0_sram_map(struct amdgpu_device *adev,
 283                    unsigned int *sram_offset, unsigned int *sram_addr_reg_offset,
 284                    unsigned int *sram_data_reg_offset,
 285                    enum AMDGPU_UCODE_ID ucode_id)
 286 {
 287         int ret = 0;
 288
 289         switch(ucode_id) {
 290 /* TODO: needs to confirm */
 291 #if 0
 292         case AMDGPU_UCODE_ID_SMC:
 293                 *sram_offset = 0;
 294                 *sram_addr_reg_offset = 0;
 295                 *sram_data_reg_offset = 0;
 296                 break;
 297 #endif
 298
 299         case AMDGPU_UCODE_ID_CP_CE:
 300                 *sram_offset = 0x0;
 301                 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_CE_UCODE_ADDR);
 302                 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_CE_UCODE_DATA);
 303                 break;
 304
 305         case AMDGPU_UCODE_ID_CP_PFP:
 306                 *sram_offset = 0x0;
 307                 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_PFP_UCODE_ADDR);
 308                 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_PFP_UCODE_DATA);
 309                 break;
 310
 311         case AMDGPU_UCODE_ID_CP_ME:
 312                 *sram_offset = 0x0;
 313                 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_ME_UCODE_ADDR);
 314                 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_ME_UCODE_DATA);
 315                 break;
 316
 317         case AMDGPU_UCODE_ID_CP_MEC1:
 318                 *sram_offset = 0x10000;
 319                 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_MEC_ME1_UCODE_ADDR);
 320                 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_MEC_ME1_UCODE_DATA);
 321                 break;
 322
 323         case AMDGPU_UCODE_ID_CP_MEC2:
 324                 *sram_offset = 0x10000;
 325                 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_MEC2_UCODE_ADDR);
 326                 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_MEC2_UCODE_DATA);
 327                 break;
 328
 329         case AMDGPU_UCODE_ID_RLC_G:
 330                 *sram_offset = 0x2000;
 331                 *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_UCODE_ADDR);
 332                 *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_UCODE_DATA);
 333                 break;
 334
 335         case AMDGPU_UCODE_ID_SDMA0:
 336                 *sram_offset = 0x0;
 337                 *sram_addr_reg_offset = SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_UCODE_ADDR);
 338                 *sram_data_reg_offset = SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_UCODE_DATA);
 339                 break;
 340
 341 /* TODO: needs to confirm */
 342 #if 0
 343         case AMDGPU_UCODE_ID_SDMA1:
 344                 *sram_offset = ;
 345                 *sram_addr_reg_offset = ;
 346                 break;
 347
 348         case AMDGPU_UCODE_ID_UVD:
 349                 *sram_offset = ;
 350                 *sram_addr_reg_offset = ;
 351                 break;
 352
 353         case AMDGPU_UCODE_ID_VCE:
 354                 *sram_offset = ;
 355                 *sram_addr_reg_offset = ;
 356                 break;
 357 #endif
 358
 359         case AMDGPU_UCODE_ID_MAXIMUM:
 360         default:
 361                 ret = -EINVAL;
 362                 break;
 363         }
 364
 365         return ret;
 366 }
 367
 368 static bool psp_v10_0_compare_sram_data(struct psp_context *psp,
 369                                         struct amdgpu_firmware_info *ucode,
 370                                         enum AMDGPU_UCODE_ID ucode_type)
 371 {
 372         int err = 0;
 373         unsigned int fw_sram_reg_val = 0;
 374         unsigned int fw_sram_addr_reg_offset = 0;
 375         unsigned int fw_sram_data_reg_offset = 0;
 376         unsigned int ucode_size;
 377         uint32_t *ucode_mem = NULL;
 378         struct amdgpu_device *adev = psp->adev;
 379
 380         err = psp_v10_0_sram_map(adev, &fw_sram_reg_val, &fw_sram_addr_reg_offset,
 381                                 &fw_sram_data_reg_offset, ucode_type);
 382         if (err)
 383                 return false;
 384
 385         WREG32(fw_sram_addr_reg_offset, fw_sram_reg_val);
 386
 387         ucode_size = ucode->ucode_size;
 388         ucode_mem = (uint32_t *)ucode->kaddr;
 389         while (!ucode_size) {
 390                 fw_sram_reg_val = RREG32(fw_sram_data_reg_offset);
 391
 392                 if (*ucode_mem != fw_sram_reg_val)
 393                         return false;
 394
 395                 ucode_mem++;
 396                 /* 4 bytes */
 397                 ucode_size -= 4;
 398         }
 399
 400         return true;
 401 }
 402
 403
 404 static int psp_v10_0_mode1_reset(struct psp_context *psp)
 405 {
 406         DRM_INFO("psp mode 1 reset not supported now! \n");
 407         return -EINVAL;
 408 }
 409
 410 static const struct psp_funcs psp_v10_0_funcs = {
 411         .init_microcode = psp_v10_0_init_microcode,
 412         .ring_init = psp_v10_0_ring_init,
 413         .ring_create = psp_v10_0_ring_create,
 414         .ring_stop = psp_v10_0_ring_stop,
 415         .ring_destroy = psp_v10_0_ring_destroy,
 416         .cmd_submit = psp_v10_0_cmd_submit,
 417         .compare_sram_data = psp_v10_0_compare_sram_data,
 418         .mode1_reset = psp_v10_0_mode1_reset,
 419 };
 420
 421 void psp_v10_0_set_psp_funcs(struct psp_context *psp)
 422 {
 423         psp->funcs = &psp_v10_0_funcs;
 424 }