linux/drivers/gpu/drm/amd/amdgpu/psp_v12_0.c
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   1/*
   2 * Copyright 2019 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
  23#include <linux/firmware.h>
  24#include <linux/module.h>
  25#include "amdgpu.h"
  26#include "amdgpu_psp.h"
  27#include "amdgpu_ucode.h"
  28#include "soc15_common.h"
  29#include "psp_v12_0.h"
  30
  31#include "mp/mp_12_0_0_offset.h"
  32#include "mp/mp_12_0_0_sh_mask.h"
  33#include "gc/gc_9_0_offset.h"
  34#include "sdma0/sdma0_4_0_offset.h"
  35#include "nbio/nbio_7_4_offset.h"
  36
  37#include "oss/osssys_4_0_offset.h"
  38#include "oss/osssys_4_0_sh_mask.h"
  39
  40MODULE_FIRMWARE("amdgpu/renoir_asd.bin");
  41/* address block */
  42#define smnMP1_FIRMWARE_FLAGS           0x3010024
  43
  44static int psp_v12_0_init_microcode(struct psp_context *psp)
  45{
  46        struct amdgpu_device *adev = psp->adev;
  47        const char *chip_name;
  48        char fw_name[30];
  49        int err = 0;
  50        const struct psp_firmware_header_v1_0 *asd_hdr;
  51
  52        DRM_DEBUG("\n");
  53
  54        switch (adev->asic_type) {
  55        case CHIP_RENOIR:
  56                chip_name = "renoir";
  57                break;
  58        default:
  59                BUG();
  60        }
  61
  62        snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_asd.bin", chip_name);
  63        err = request_firmware(&adev->psp.asd_fw, fw_name, adev->dev);
  64        if (err)
  65                goto out1;
  66
  67        err = amdgpu_ucode_validate(adev->psp.asd_fw);
  68        if (err)
  69                goto out1;
  70
  71        asd_hdr = (const struct psp_firmware_header_v1_0 *)adev->psp.asd_fw->data;
  72        adev->psp.asd_fw_version = le32_to_cpu(asd_hdr->header.ucode_version);
  73        adev->psp.asd_feature_version = le32_to_cpu(asd_hdr->ucode_feature_version);
  74        adev->psp.asd_ucode_size = le32_to_cpu(asd_hdr->header.ucode_size_bytes);
  75        adev->psp.asd_start_addr = (uint8_t *)asd_hdr +
  76                                le32_to_cpu(asd_hdr->header.ucode_array_offset_bytes);
  77
  78        return 0;
  79
  80out1:
  81        release_firmware(adev->psp.asd_fw);
  82        adev->psp.asd_fw = NULL;
  83
  84        return err;
  85}
  86
  87static int psp_v12_0_bootloader_load_sysdrv(struct psp_context *psp)
  88{
  89        int ret;
  90        uint32_t psp_gfxdrv_command_reg = 0;
  91        struct amdgpu_device *adev = psp->adev;
  92        uint32_t sol_reg;
  93
  94        /* Check sOS sign of life register to confirm sys driver and sOS
  95         * are already been loaded.
  96         */
  97        sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
  98        if (sol_reg) {
  99                psp->sos_fw_version = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_58);
 100                printk("sos fw version = 0x%x.\n", psp->sos_fw_version);
 101                return 0;
 102        }
 103
 104        /* Wait for bootloader to signify that is ready having bit 31 of C2PMSG_35 set to 1 */
 105        ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
 106                           0x80000000, 0x80000000, false);
 107        if (ret)
 108                return ret;
 109
 110        memset(psp->fw_pri_buf, 0, PSP_1_MEG);
 111
 112        /* Copy PSP System Driver binary to memory */
 113        memcpy(psp->fw_pri_buf, psp->sys_start_addr, psp->sys_bin_size);
 114
 115        /* Provide the sys driver to bootloader */
 116        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
 117               (uint32_t)(psp->fw_pri_mc_addr >> 20));
 118        psp_gfxdrv_command_reg = 1 << 16;
 119        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35,
 120               psp_gfxdrv_command_reg);
 121
 122        /* there might be handshake issue with hardware which needs delay */
 123        mdelay(20);
 124
 125        ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
 126                           0x80000000, 0x80000000, false);
 127
 128        return ret;
 129}
 130
 131static int psp_v12_0_bootloader_load_sos(struct psp_context *psp)
 132{
 133        int ret;
 134        unsigned int psp_gfxdrv_command_reg = 0;
 135        struct amdgpu_device *adev = psp->adev;
 136        uint32_t sol_reg;
 137
 138        /* Check sOS sign of life register to confirm sys driver and sOS
 139         * are already been loaded.
 140         */
 141        sol_reg = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81);
 142        if (sol_reg)
 143                return 0;
 144
 145        /* Wait for bootloader to signify that is ready having bit 31 of C2PMSG_35 set to 1 */
 146        ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_35),
 147                           0x80000000, 0x80000000, false);
 148        if (ret)
 149                return ret;
 150
 151        memset(psp->fw_pri_buf, 0, PSP_1_MEG);
 152
 153        /* Copy Secure OS binary to PSP memory */
 154        memcpy(psp->fw_pri_buf, psp->sos_start_addr, psp->sos_bin_size);
 155
 156        /* Provide the PSP secure OS to bootloader */
 157        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_36,
 158               (uint32_t)(psp->fw_pri_mc_addr >> 20));
 159        psp_gfxdrv_command_reg = 2 << 16;
 160        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_35,
 161               psp_gfxdrv_command_reg);
 162
 163        /* there might be handshake issue with hardware which needs delay */
 164        mdelay(20);
 165        ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_81),
 166                           RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_81),
 167                           0, true);
 168
 169        return ret;
 170}
 171
 172static void psp_v12_0_reroute_ih(struct psp_context *psp)
 173{
 174        struct amdgpu_device *adev = psp->adev;
 175        uint32_t tmp;
 176
 177        /* Change IH ring for VMC */
 178        tmp = REG_SET_FIELD(0, IH_CLIENT_CFG_DATA, CREDIT_RETURN_ADDR, 0x1244b);
 179        tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, CLIENT_TYPE, 1);
 180        tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1);
 181
 182        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, 3);
 183        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, tmp);
 184        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, GFX_CTRL_CMD_ID_GBR_IH_SET);
 185
 186        mdelay(20);
 187        psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
 188                     0x80000000, 0x8000FFFF, false);
 189
 190        /* Change IH ring for UMC */
 191        tmp = REG_SET_FIELD(0, IH_CLIENT_CFG_DATA, CREDIT_RETURN_ADDR, 0x1216b);
 192        tmp = REG_SET_FIELD(tmp, IH_CLIENT_CFG_DATA, RING_ID, 1);
 193
 194        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, 4);
 195        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, tmp);
 196        WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, GFX_CTRL_CMD_ID_GBR_IH_SET);
 197
 198        mdelay(20);
 199        psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
 200                     0x80000000, 0x8000FFFF, false);
 201}
 202
 203static int psp_v12_0_ring_init(struct psp_context *psp,
 204                              enum psp_ring_type ring_type)
 205{
 206        int ret = 0;
 207        struct psp_ring *ring;
 208        struct amdgpu_device *adev = psp->adev;
 209
 210        psp_v12_0_reroute_ih(psp);
 211
 212        ring = &psp->km_ring;
 213
 214        ring->ring_type = ring_type;
 215
 216        /* allocate 4k Page of Local Frame Buffer memory for ring */
 217        ring->ring_size = 0x1000;
 218        ret = amdgpu_bo_create_kernel(adev, ring->ring_size, PAGE_SIZE,
 219                                      AMDGPU_GEM_DOMAIN_VRAM,
 220                                      &adev->firmware.rbuf,
 221                                      &ring->ring_mem_mc_addr,
 222                                      (void **)&ring->ring_mem);
 223        if (ret) {
 224                ring->ring_size = 0;
 225                return ret;
 226        }
 227
 228        return 0;
 229}
 230
 231static bool psp_v12_0_support_vmr_ring(struct psp_context *psp)
 232{
 233        if (amdgpu_sriov_vf(psp->adev) && psp->sos_fw_version > 0x80045)
 234                return true;
 235        return false;
 236}
 237
 238static int psp_v12_0_ring_create(struct psp_context *psp,
 239                                enum psp_ring_type ring_type)
 240{
 241        int ret = 0;
 242        unsigned int psp_ring_reg = 0;
 243        struct psp_ring *ring = &psp->km_ring;
 244        struct amdgpu_device *adev = psp->adev;
 245
 246        if (psp_v12_0_support_vmr_ring(psp)) {
 247                /* Write low address of the ring to C2PMSG_102 */
 248                psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
 249                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, psp_ring_reg);
 250                /* Write high address of the ring to C2PMSG_103 */
 251                psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
 252                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_103, psp_ring_reg);
 253
 254                /* Write the ring initialization command to C2PMSG_101 */
 255                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
 256                                             GFX_CTRL_CMD_ID_INIT_GPCOM_RING);
 257
 258                /* there might be handshake issue with hardware which needs delay */
 259                mdelay(20);
 260
 261                /* Wait for response flag (bit 31) in C2PMSG_101 */
 262                ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
 263                                   0x80000000, 0x8000FFFF, false);
 264
 265        } else {
 266                /* Write low address of the ring to C2PMSG_69 */
 267                psp_ring_reg = lower_32_bits(ring->ring_mem_mc_addr);
 268                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_69, psp_ring_reg);
 269                /* Write high address of the ring to C2PMSG_70 */
 270                psp_ring_reg = upper_32_bits(ring->ring_mem_mc_addr);
 271                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_70, psp_ring_reg);
 272                /* Write size of ring to C2PMSG_71 */
 273                psp_ring_reg = ring->ring_size;
 274                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_71, psp_ring_reg);
 275                /* Write the ring initialization command to C2PMSG_64 */
 276                psp_ring_reg = ring_type;
 277                psp_ring_reg = psp_ring_reg << 16;
 278                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64, psp_ring_reg);
 279
 280                /* there might be handshake issue with hardware which needs delay */
 281                mdelay(20);
 282
 283                /* Wait for response flag (bit 31) in C2PMSG_64 */
 284                ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
 285                                   0x80000000, 0x8000FFFF, false);
 286        }
 287
 288        return ret;
 289}
 290
 291static int psp_v12_0_ring_stop(struct psp_context *psp,
 292                              enum psp_ring_type ring_type)
 293{
 294        int ret = 0;
 295        struct amdgpu_device *adev = psp->adev;
 296
 297        /* Write the ring destroy command*/
 298        if (psp_v12_0_support_vmr_ring(psp))
 299                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101,
 300                                     GFX_CTRL_CMD_ID_DESTROY_GPCOM_RING);
 301        else
 302                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_64,
 303                                     GFX_CTRL_CMD_ID_DESTROY_RINGS);
 304
 305        /* there might be handshake issue with hardware which needs delay */
 306        mdelay(20);
 307
 308        /* Wait for response flag (bit 31) */
 309        if (psp_v12_0_support_vmr_ring(psp))
 310                ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_101),
 311                                   0x80000000, 0x80000000, false);
 312        else
 313                ret = psp_wait_for(psp, SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64),
 314                                   0x80000000, 0x80000000, false);
 315
 316        return ret;
 317}
 318
 319static int psp_v12_0_ring_destroy(struct psp_context *psp,
 320                                 enum psp_ring_type ring_type)
 321{
 322        int ret = 0;
 323        struct psp_ring *ring = &psp->km_ring;
 324        struct amdgpu_device *adev = psp->adev;
 325
 326        ret = psp_v12_0_ring_stop(psp, ring_type);
 327        if (ret)
 328                DRM_ERROR("Fail to stop psp ring\n");
 329
 330        amdgpu_bo_free_kernel(&adev->firmware.rbuf,
 331                              &ring->ring_mem_mc_addr,
 332                              (void **)&ring->ring_mem);
 333
 334        return ret;
 335}
 336
 337static int
 338psp_v12_0_sram_map(struct amdgpu_device *adev,
 339                  unsigned int *sram_offset, unsigned int *sram_addr_reg_offset,
 340                  unsigned int *sram_data_reg_offset,
 341                  enum AMDGPU_UCODE_ID ucode_id)
 342{
 343        int ret = 0;
 344
 345        switch (ucode_id) {
 346/* TODO: needs to confirm */
 347#if 0
 348        case AMDGPU_UCODE_ID_SMC:
 349                *sram_offset = 0;
 350                *sram_addr_reg_offset = 0;
 351                *sram_data_reg_offset = 0;
 352                break;
 353#endif
 354
 355        case AMDGPU_UCODE_ID_CP_CE:
 356                *sram_offset = 0x0;
 357                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_CE_UCODE_ADDR);
 358                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_CE_UCODE_DATA);
 359                break;
 360
 361        case AMDGPU_UCODE_ID_CP_PFP:
 362                *sram_offset = 0x0;
 363                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_PFP_UCODE_ADDR);
 364                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_PFP_UCODE_DATA);
 365                break;
 366
 367        case AMDGPU_UCODE_ID_CP_ME:
 368                *sram_offset = 0x0;
 369                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_ME_UCODE_ADDR);
 370                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_ME_UCODE_DATA);
 371                break;
 372
 373        case AMDGPU_UCODE_ID_CP_MEC1:
 374                *sram_offset = 0x10000;
 375                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_MEC_ME1_UCODE_ADDR);
 376                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_MEC_ME1_UCODE_DATA);
 377                break;
 378
 379        case AMDGPU_UCODE_ID_CP_MEC2:
 380                *sram_offset = 0x10000;
 381                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_MEC2_UCODE_ADDR);
 382                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmCP_HYP_MEC2_UCODE_DATA);
 383                break;
 384
 385        case AMDGPU_UCODE_ID_RLC_G:
 386                *sram_offset = 0x2000;
 387                *sram_addr_reg_offset = SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_UCODE_ADDR);
 388                *sram_data_reg_offset = SOC15_REG_OFFSET(GC, 0, mmRLC_GPM_UCODE_DATA);
 389                break;
 390
 391        case AMDGPU_UCODE_ID_SDMA0:
 392                *sram_offset = 0x0;
 393                *sram_addr_reg_offset = SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_UCODE_ADDR);
 394                *sram_data_reg_offset = SOC15_REG_OFFSET(SDMA0, 0, mmSDMA0_UCODE_DATA);
 395                break;
 396
 397/* TODO: needs to confirm */
 398#if 0
 399        case AMDGPU_UCODE_ID_SDMA1:
 400                *sram_offset = ;
 401                *sram_addr_reg_offset = ;
 402                break;
 403
 404        case AMDGPU_UCODE_ID_UVD:
 405                *sram_offset = ;
 406                *sram_addr_reg_offset = ;
 407                break;
 408
 409        case AMDGPU_UCODE_ID_VCE:
 410                *sram_offset = ;
 411                *sram_addr_reg_offset = ;
 412                break;
 413#endif
 414
 415        case AMDGPU_UCODE_ID_MAXIMUM:
 416        default:
 417                ret = -EINVAL;
 418                break;
 419        }
 420
 421        return ret;
 422}
 423
 424static bool psp_v12_0_compare_sram_data(struct psp_context *psp,
 425                                       struct amdgpu_firmware_info *ucode,
 426                                       enum AMDGPU_UCODE_ID ucode_type)
 427{
 428        int err = 0;
 429        unsigned int fw_sram_reg_val = 0;
 430        unsigned int fw_sram_addr_reg_offset = 0;
 431        unsigned int fw_sram_data_reg_offset = 0;
 432        unsigned int ucode_size;
 433        uint32_t *ucode_mem = NULL;
 434        struct amdgpu_device *adev = psp->adev;
 435
 436        err = psp_v12_0_sram_map(adev, &fw_sram_reg_val, &fw_sram_addr_reg_offset,
 437                                &fw_sram_data_reg_offset, ucode_type);
 438        if (err)
 439                return false;
 440
 441        WREG32(fw_sram_addr_reg_offset, fw_sram_reg_val);
 442
 443        ucode_size = ucode->ucode_size;
 444        ucode_mem = (uint32_t *)ucode->kaddr;
 445        while (ucode_size) {
 446                fw_sram_reg_val = RREG32(fw_sram_data_reg_offset);
 447
 448                if (*ucode_mem != fw_sram_reg_val)
 449                        return false;
 450
 451                ucode_mem++;
 452                /* 4 bytes */
 453                ucode_size -= 4;
 454        }
 455
 456        return true;
 457}
 458
 459static int psp_v12_0_mode1_reset(struct psp_context *psp)
 460{
 461        int ret;
 462        uint32_t offset;
 463        struct amdgpu_device *adev = psp->adev;
 464
 465        offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_64);
 466
 467        ret = psp_wait_for(psp, offset, 0x80000000, 0x8000FFFF, false);
 468
 469        if (ret) {
 470                DRM_INFO("psp is not working correctly before mode1 reset!\n");
 471                return -EINVAL;
 472        }
 473
 474        /*send the mode 1 reset command*/
 475        WREG32(offset, GFX_CTRL_CMD_ID_MODE1_RST);
 476
 477        msleep(500);
 478
 479        offset = SOC15_REG_OFFSET(MP0, 0, mmMP0_SMN_C2PMSG_33);
 480
 481        ret = psp_wait_for(psp, offset, 0x80000000, 0x80000000, false);
 482
 483        if (ret) {
 484                DRM_INFO("psp mode 1 reset failed!\n");
 485                return -EINVAL;
 486        }
 487
 488        DRM_INFO("psp mode1 reset succeed \n");
 489
 490        return 0;
 491}
 492
 493static uint32_t psp_v12_0_ring_get_wptr(struct psp_context *psp)
 494{
 495        uint32_t data;
 496        struct amdgpu_device *adev = psp->adev;
 497
 498        if (psp_v12_0_support_vmr_ring(psp))
 499                data = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102);
 500        else
 501                data = RREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67);
 502
 503        return data;
 504}
 505
 506static void psp_v12_0_ring_set_wptr(struct psp_context *psp, uint32_t value)
 507{
 508        struct amdgpu_device *adev = psp->adev;
 509
 510        if (psp_v12_0_support_vmr_ring(psp)) {
 511                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_102, value);
 512                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_101, GFX_CTRL_CMD_ID_CONSUME_CMD);
 513        } else
 514                WREG32_SOC15(MP0, 0, mmMP0_SMN_C2PMSG_67, value);
 515}
 516
 517static const struct psp_funcs psp_v12_0_funcs = {
 518        .init_microcode = psp_v12_0_init_microcode,
 519        .bootloader_load_sysdrv = psp_v12_0_bootloader_load_sysdrv,
 520        .bootloader_load_sos = psp_v12_0_bootloader_load_sos,
 521        .ring_init = psp_v12_0_ring_init,
 522        .ring_create = psp_v12_0_ring_create,
 523        .ring_stop = psp_v12_0_ring_stop,
 524        .ring_destroy = psp_v12_0_ring_destroy,
 525        .compare_sram_data = psp_v12_0_compare_sram_data,
 526        .mode1_reset = psp_v12_0_mode1_reset,
 527        .ring_get_wptr = psp_v12_0_ring_get_wptr,
 528        .ring_set_wptr = psp_v12_0_ring_set_wptr,
 529};
 530
 531void psp_v12_0_set_psp_funcs(struct psp_context *psp)
 532{
 533        psp->funcs = &psp_v12_0_funcs;
 534}
 535