diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h new file mode 100644 index 000000000000..975afa04df09 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.h @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2019 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef __AMDGPU_UMC_H__ +#define __AMDGPU_UMC_H__ + +/* implement 64 bits REG operations via 32 bits interface */ +#define RREG64_UMC(reg) (RREG32(reg) | \ + ((uint64_t)RREG32((reg) + 1) << 32)) +#define WREG64_UMC(reg, v) \ + do { \ + WREG32((reg), lower_32_bits(v)); \ + WREG32((reg) + 1, upper_32_bits(v)); \ + } while (0) + +/* + * void (*func)(struct amdgpu_device *adev, struct ras_err_data *err_data, + * uint32_t umc_reg_offset, uint32_t channel_index) + */ +#define amdgpu_umc_for_each_channel(func) \ + struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; \ + uint32_t umc_inst, channel_inst, umc_reg_offset, channel_index; \ + for (umc_inst = 0; umc_inst < adev->umc.umc_inst_num; umc_inst++) { \ + /* enable the index mode to query eror count per channel */ \ + adev->umc.funcs->enable_umc_index_mode(adev, umc_inst); \ + for (channel_inst = 0; \ + channel_inst < adev->umc.channel_inst_num; \ + channel_inst++) { \ + /* calc the register offset according to channel instance */ \ + umc_reg_offset = adev->umc.channel_offs * channel_inst; \ + /* get channel index of interleaved memory */ \ + channel_index = adev->umc.channel_idx_tbl[ \ + umc_inst * adev->umc.channel_inst_num + channel_inst]; \ + (func)(adev, err_data, umc_reg_offset, channel_index); \ + } \ + } \ + adev->umc.funcs->disable_umc_index_mode(adev); + +struct amdgpu_umc_funcs { + void (*ras_init)(struct amdgpu_device *adev); + void (*query_ras_error_count)(struct amdgpu_device *adev, + void *ras_error_status); + void (*query_ras_error_address)(struct amdgpu_device *adev, + void *ras_error_status); + void (*enable_umc_index_mode)(struct amdgpu_device *adev, + uint32_t umc_instance); + void (*disable_umc_index_mode)(struct amdgpu_device *adev); +}; + +struct amdgpu_umc { + /* max error count in one ras query call */ + uint32_t max_ras_err_cnt_per_query; + /* number of umc channel instance with memory map register access */ + uint32_t channel_inst_num; + /* number of umc instance with memory map register access */ + uint32_t umc_inst_num; + /* UMC regiser per channel offset */ + uint32_t channel_offs; + /* channel index table of interleaved memory */ + const uint32_t *channel_idx_tbl; + + const struct amdgpu_umc_funcs *funcs; +}; + +#endif |