linux/drivers/gpu/drm/amd/amdgpu/psp_v10_0.c
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   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 "amdgpu.h"
  28#include "amdgpu_psp.h"
  29#include "amdgpu_ucode.h"
  30#include "soc15_common.h"
  31#include "psp_v10_0.h"
  32
  33#include "mp/mp_10_0_offset.h"
  34#include "gc/gc_9_1_offset.h"
  35#include "sdma0/sdma0_4_1_offset.h"
  36
  37MODULE_FIRMWARE("amdgpu/raven_asd.bin");
  38
  39static int
  40psp_v10_0_get_fw_type(struct amdgpu_firmware_info *ucode, enum psp_gfx_fw_type *type)
  41{
  42        switch(ucode->ucode_id) {
  43        case AMDGPU_UCODE_ID_SDMA0:
  44                *type = GFX_FW_TYPE_SDMA0;
  45                break;
  46        case AMDGPU_UCODE_ID_SDMA1:
  47                *type = GFX_FW_TYPE_SDMA1;
  48                break;
  49        case AMDGPU_UCODE_ID_CP_CE:
  50                *type = GFX_FW_TYPE_CP_CE;
  51                break;
  52        case AMDGPU_UCODE_ID_CP_PFP:
  53                *type = GFX_FW_TYPE_CP_PFP;
  54                break;
  55        case AMDGPU_UCODE_ID_CP_ME:
  56                *type = GFX_FW_TYPE_CP_ME;
  57                break;
  58        case AMDGPU_UCODE_ID_CP_MEC1:
  59                *type = GFX_FW_TYPE_CP_MEC;
  60                break;
  61        case AMDGPU_UCODE_ID_CP_MEC1_JT:
  62                *type = GFX_FW_TYPE_CP_MEC_ME1;
  63                break;
  64        case AMDGPU_UCODE_ID_CP_MEC2:
  65                *type = GFX_FW_TYPE_CP_MEC;
  66                break;
  67        case AMDGPU_UCODE_ID_CP_MEC2_JT:
  68                *type = GFX_FW_TYPE_CP_MEC_ME2;
  69                break;
  70        case AMDGPU_UCODE_ID_RLC_G:
  71                *type = GFX_FW_TYPE_RLC_G;
  72                break;
  73        case AMDGPU_UCODE_ID_SMC:
  74                *type = GFX_FW_TYPE_SMU;
  75                break;
  76        case AMDGPU_UCODE_ID_UVD:
  77                *type = GFX_FW_TYPE_UVD;
  78                break;
  79        case AMDGPU_UCODE_ID_VCE:
  80                *type = GFX_FW_TYPE_VCE;
  81                break;
  82        case AMDGPU_UCODE_ID_MAXIMUM:
  83        default:
  84                return -EINVAL;
  85        }
  86
  87        return 0;
  88}
  89
  90static int psp_v10_0_init_microcode(struct psp_context *psp)
  91{
  92        struct amdgpu_device *adev = psp->adev;
  93        const char *chip_name;
  94        char fw_name[30];
  95        int err = 0;
  96        const struct psp_firmware_header_v1_0 *hdr;
  97
  98        DRM_DEBUG("\n");
  99
 100        switch (adev->asic_type) {
 101        case CHIP_RAVEN:
 102                chip_name = "raven";
 103                break;
 104        default: BUG();
 105        }
 106
 107        snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_asd.bin", chip_name);
 108        err = request_firmware(&adev->psp.asd_fw, fw_name, adev->dev);
 109        if (err)
 110                goto out;
 111
 112        err = amdgpu_ucode_validate(adev->psp.asd_fw);
 113        if (err)
 114                goto out;
 115
 116        hdr = (const struct psp_firmware_header_v1_0 *)adev->psp.asd_fw->data;
 117        adev->psp.asd_fw_version = le32_to_cpu(hdr->header.ucode_version);
 118        adev->psp.asd_feature_version = le32_to_cpu(hdr->ucode_feature_version);
 119        adev->psp.asd_ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes);
 120        adev->psp.asd_start_addr = (uint8_t *)hdr +
 121                                le32_to_cpu(hdr->header.ucode_array_offset_bytes);
 122
 123        return 0;
 124out:
 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
 136static int psp_v10_0_prep_cmd_buf(struct amdgpu_firmware_info *ucode,
 137                                  struct psp_gfx_cmd_resp *cmd)
 138{
 139        int ret;
 140        uint64_t fw_mem_mc_addr = ucode->mc_addr;
 141
 142        memset(cmd, 0, sizeof(struct psp_gfx_cmd_resp));
 143
 144        cmd->cmd_id = GFX_CMD_ID_LOAD_IP_FW;
 145        cmd->cmd.cmd_load_ip_fw.fw_phy_addr_lo = lower_32_bits(fw_mem_mc_addr);
 146        cmd->cmd.cmd_load_ip_fw.fw_phy_addr_hi = upper_32_bits(fw_mem_mc_addr);
 147        cmd->cmd.cmd_load_ip_fw.fw_size = ucode->ucode_size;
 148
 149        ret = psp_v10_0_get_fw_type(ucode, &cmd->cmd.cmd_load_ip_fw.fw_type);
 150        if (ret)
 151                DRM_ERROR("Unknown firmware type\n");
 152
 153        return ret;
 154}
 155
 156static int psp_v10_0_ring_init(struct psp_context *psp,
 157                               enum psp_ring_type ring_type)
 158{
 159        int ret = 0;
 160        struct psp_ring *ring;
 161        struct amdgpu_device *adev = psp->adev;
 162
 163        ring = &psp->km_ring;
 164
 165        ring->ring_type = ring_type;
 166
 167        /* allocate 4k Page of Local Frame Buffer memory for ring */
 168        ring->ring_size = 0x1000;
 169        ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE,
 170                                      AMDGPU_GEM_DOMAIN_VRAM,
 171                                      &adev->firmware.rbuf,
 172                                      &ring->ring_mem_mc_addr,
 173                                      (void **)&ring->ring_mem);
 174        if (ret) {
 175                ring->ring_size = 0;
 176                return ret;
 177        }
 178
 179        return 0;
 180}
 181
 182static int psp_v10_0_ring_create(struct psp_context *psp,
 183                                 enum psp_ring_type ring_type)
 184{
 185        int ret = 0;
 186        unsigned int psp_ring_reg = 0;
 187        struct psp_ring *ring = &psp->km_ring;
 188        struct amdgpu_device *adev = psp->adev;
 189
 190        /* Write low address of the ring to C2PMSG_69 */
 191        psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
 192        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg);
 193        /* Write high address of the ring to C2PMSG_70 */
 194        psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
 195        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg);
 196        /* Write size of ring to C2PMSG_71 */
 197        psp_ring_reg = ring->ring_size;
 198        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg);
 199        /* Write the ring initialization command to C2PMSG_64 */
 200        psp_ring_reg = ring_type;
 201        psp_ring_reg = psp_ring_reg << 16;
 202        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
 203
 204        /* There might be handshake issue with hardware which needs delay */
 205        mdelay(20);
 206
 207        /* Wait for response flag (bit 31) in C2PMSG_64 */
 208        ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
 209                           0x80000000, 0x8000FFFF, false);
 210
 211        return ret;
 212}
 213
 214static int psp_v10_0_ring_stop(struct psp_context *psp,
 215                               enum psp_ring_type ring_type)
 216{
 217        int ret = 0;
 218        struct psp_ring *ring;
 219        unsigned int psp_ring_reg = 0;
 220        struct amdgpu_device *adev = psp->adev;
 221
 222        ring = &psp->km_ring;
 223
 224        /* Write the ring destroy command to C2PMSG_64 */
 225        psp_ring_reg = 3 << 16;
 226        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
 227
 228        /* There might be handshake issue with hardware which needs delay */
 229        mdelay(20);
 230
 231        /* Wait for response flag (bit 31) in C2PMSG_64 */
 232        ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
 233                           0x80000000, 0x80000000, false);
 234
 235        return ret;
 236}
 237
 238static int psp_v10_0_ring_destroy(struct psp_context *psp,
 239                                  enum psp_ring_type ring_type)
 240{
 241        int ret = 0;
 242        struct psp_ring *ring = &psp->km_ring;
 243        struct amdgpu_device *adev = psp->adev;
 244
 245        ret = psp_v10_0_ring_stop(psp, ring_type);
 246        if (ret)
 247                DRM_ERROR("Fail to stop psp ring\n");
 248
 249        amdgpu_bo_free_kernel(&adev->firmware.rbuf,
 250                              &ring->ring_mem_mc_addr,
 251                              (void **)&ring->ring_mem);
 252
 253        return ret;
 254}
 255
 256static int psp_v10_0_cmd_submit(struct psp_context *psp,
 257                                struct amdgpu_firmware_info *ucode,
 258                                uint64_t cmd_buf_mc_addr, uint64_t fence_mc_addr,
 259                                int index)
 260{
 261        unsigned int psp_write_ptr_reg = 0;
 262        struct psp_gfx_rb_frame * write_frame = psp->km_ring.ring_mem;
 263        struct psp_ring *ring = &psp->km_ring;
 264        struct psp_gfx_rb_frame *ring_buffer_start = ring->ring_mem;
 265        struct psp_gfx_rb_frame *ring_buffer_end = ring_buffer_start +
 266                ring->ring_size / sizeof(struct psp_gfx_rb_frame) - 1;
 267        struct amdgpu_device *adev = psp->adev;
 268        uint32_t ring_size_dw = ring->ring_size / 4;
 269        uint32_t rb_frame_size_dw = sizeof(struct psp_gfx_rb_frame) / 4;
 270
 271        /* KM (GPCOM) prepare write pointer */
 272        psp_write_ptr_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67);
 273
 274        /* Update KM RB frame pointer to new frame */
 275        if ((psp_write_ptr_reg % ring_size_dw) == 0)
 276                write_frame = ring_buffer_start;
 277        else
 278                write_frame = ring_buffer_start + (psp_write_ptr_reg / rb_frame_size_dw);
 279        /* Check invalid write_frame ptr address */
 280        if ((write_frame < ring_buffer_start) || (ring_buffer_end < write_frame)) {
 281                DRM_ERROR("ring_buffer_start = %p; ring_buffer_end = %p; write_frame = %p\n",
 282                          ring_buffer_start, ring_buffer_end, write_frame);
 283                DRM_ERROR("write_frame is pointing to address out of bounds\n");
 284                return -EINVAL;
 285        }
 286
 287        /* Initialize KM RB frame */
 288        memset(write_frame, 0, sizeof(struct psp_gfx_rb_frame));
 289
 290        /* Update KM RB frame */
 291        write_frame->cmd_buf_addr_hi = upper_32_bits(cmd_buf_mc_addr);
 292        write_frame->cmd_buf_addr_lo = lower_32_bits(cmd_buf_mc_addr);
 293        write_frame->fence_addr_hi = upper_32_bits(fence_mc_addr);
 294        write_frame->fence_addr_lo = lower_32_bits(fence_mc_addr);
 295        write_frame->fence_value = index;
 296
 297        /* Update the write Pointer in DWORDs */
 298        psp_write_ptr_reg = (psp_write_ptr_reg + rb_frame_size_dw) % ring_size_dw;
 299        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, psp_write_ptr_reg);
 300
 301        return 0;
 302}
 303
 304static int
 305psp_v10_0_sram_map(struct amdgpu_device *adev,
 306                   unsigned int *sram_offset, unsigned int *sram_addr_reg_offset,
 307                   unsigned int *sram_data_reg_offset,
 308                   enum AMDGPU_UCODE_ID ucode_id)
 309{
 310        int ret = 0;
 311
 312        switch(ucode_id) {
 313/* TODO: needs to confirm */
 314#if 0
 315        case AMDGPU_UCODE_ID_SMC:
 316                *sram_offset = 0;
 317                *sram_addr_reg_offset = 0;
 318                *sram_data_reg_offset = 0;
 319                break;
 320#endif
 321
 322        case AMDGPU_UCODE_ID_CP_CE:
 323                *sram_offset = 0x0;
 324                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_CE_UCODE_ADDR);
 325                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_CE_UCODE_DATA);
 326                break;
 327
 328        case AMDGPU_UCODE_ID_CP_PFP:
 329                *sram_offset = 0x0;
 330                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_PFP_UCODE_ADDR);
 331                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_PFP_UCODE_DATA);
 332                break;
 333
 334        case AMDGPU_UCODE_ID_CP_ME:
 335                *sram_offset = 0x0;
 336                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_ME_UCODE_ADDR);
 337                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_ME_UCODE_DATA);
 338                break;
 339
 340        case AMDGPU_UCODE_ID_CP_MEC1:
 341                *sram_offset = 0x10000;
 342                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_MEC_ME1_UCODE_ADDR);
 343                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_MEC_ME1_UCODE_DATA);
 344                break;
 345
 346        case AMDGPU_UCODE_ID_CP_MEC2:
 347                *sram_offset = 0x10000;
 348                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_MEC2_UCODE_ADDR);
 349                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_MEC2_UCODE_DATA);
 350                break;
 351
 352        case AMDGPU_UCODE_ID_RLC_G:
 353                *sram_offset = 0x2000;
 354                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_UCODE_ADDR);
 355                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_UCODE_DATA);
 356                break;
 357
 358        case AMDGPU_UCODE_ID_SDMA0:
 359                *sram_offset = 0x0;
 360                *sram_addr_reg_offset = SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_UCODE_ADDR);
 361                *sram_data_reg_offset = SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_UCODE_DATA);
 362                break;
 363
 364/* TODO: needs to confirm */
 365#if 0
 366        case AMDGPU_UCODE_ID_SDMA1:
 367                *sram_offset = ;
 368                *sram_addr_reg_offset = ;
 369                break;
 370
 371        case AMDGPU_UCODE_ID_UVD:
 372                *sram_offset = ;
 373                *sram_addr_reg_offset = ;
 374                break;
 375
 376        case AMDGPU_UCODE_ID_VCE:
 377                *sram_offset = ;
 378                *sram_addr_reg_offset = ;
 379                break;
 380#endif
 381
 382        case AMDGPU_UCODE_ID_MAXIMUM:
 383        default:
 384                ret = -EINVAL;
 385                break;
 386        }
 387
 388        return ret;
 389}
 390
 391static bool psp_v10_0_compare_sram_data(struct psp_context *psp,
 392                                        struct amdgpu_firmware_info *ucode,
 393                                        enum AMDGPU_UCODE_ID ucode_type)
 394{
 395        int err = 0;
 396        unsigned int fw_sram_reg_val = 0;
 397        unsigned int fw_sram_addr_reg_offset = 0;
 398        unsigned int fw_sram_data_reg_offset = 0;
 399        unsigned int ucode_size;
 400        uint32_t *ucode_mem = NULL;
 401        struct amdgpu_device *adev = psp->adev;
 402
 403        err = psp_v10_0_sram_map(adev, &fw_sram_reg_val, &fw_sram_addr_reg_offset,
 404                                &fw_sram_data_reg_offset, ucode_type);
 405        if (err)
 406                return false;
 407
 408        WREG32(fw_sram_addr_reg_offset, fw_sram_reg_val);
 409
 410        ucode_size = ucode->ucode_size;
 411        ucode_mem = (uint32_t *)ucode->kaddr;
 412        while (!ucode_size) {
 413                fw_sram_reg_val = RREG32(fw_sram_data_reg_offset);
 414
 415                if (*ucode_mem != fw_sram_reg_val)
 416                        return false;
 417
 418                ucode_mem++;
 419                /* 4 bytes */
 420                ucode_size -= 4;
 421        }
 422
 423        return true;
 424}
 425
 426
 427static int psp_v10_0_mode1_reset(struct psp_context *psp)
 428{
 429        DRM_INFO("psp mode 1 reset not supported now! \n");
 430        return -EINVAL;
 431}
 432
 433static const struct psp_funcs psp_v10_0_funcs = {
 434        .init_microcode = psp_v10_0_init_microcode,
 435        .prep_cmd_buf = psp_v10_0_prep_cmd_buf,
 436        .ring_init = psp_v10_0_ring_init,
 437        .ring_create = psp_v10_0_ring_create,
 438        .ring_stop = psp_v10_0_ring_stop,
 439        .ring_destroy = psp_v10_0_ring_destroy,
 440        .cmd_submit = psp_v10_0_cmd_submit,
 441        .compare_sram_data = psp_v10_0_compare_sram_data,
 442        .mode1_reset = psp_v10_0_mode1_reset,
 443};
 444
 445void psp_v10_0_set_psp_funcs(struct psp_context *psp)
 446{
 447        psp->funcs = &psp_v10_0_funcs;
 448}
 449