From 0586a0596a69b08eac1d2f8edb15cc9e955f36ab Mon Sep 17 00:00:00 2001 From: "Tianci.Yin" Date: Mon, 30 Sep 2019 14:07:00 +0800 Subject: [PATCH] drm/amdgpu: add psp memory training callbacks and macro add interface for memory training. Reviewed-by: Alex Deucher Reviewed-by: Luben Tuikov Signed-off-by: Tianci.Yin Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 18 ++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 55 +++++++++++++++++++++++++ 2 files changed, 73 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c index 37ffed5e2171..b996b5bc5804 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c @@ -88,6 +88,17 @@ static int psp_sw_init(void *handle) return ret; } + ret = psp_mem_training_init(psp); + if (ret) { + DRM_ERROR("Failed to initliaze memory training!\n"); + return ret; + } + ret = psp_mem_training(psp, PSP_MEM_TRAIN_COLD_BOOT); + if (ret) { + DRM_ERROR("Failed to process memory training!\n"); + return ret; + } + return 0; } @@ -95,6 +106,7 @@ static int psp_sw_fini(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; + psp_mem_training_fini(&adev->psp); release_firmware(adev->psp.sos_fw); adev->psp.sos_fw = NULL; release_firmware(adev->psp.asd_fw); @@ -1608,6 +1620,12 @@ static int psp_resume(void *handle) DRM_INFO("PSP is resuming...\n"); + ret = psp_mem_training(psp, PSP_MEM_TRAIN_RESUME); + if (ret) { + DRM_ERROR("Failed to process memory training!\n"); + return ret; + } + mutex_lock(&adev->firmware.mutex); ret = psp_hw_start(psp); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h index 7dd9ae7dbbe4..09c5474ebcc3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -49,6 +49,8 @@ enum psp_bootloader_cmd { PSP_BL__LOAD_SYSDRV = 0x10000, PSP_BL__LOAD_SOSDRV = 0x20000, PSP_BL__LOAD_KEY_DATABASE = 0x80000, + PSP_BL__DRAM_LONG_TRAIN = 0x100000, + PSP_BL__DRAM_SHORT_TRAIN = 0x200000, }; enum psp_ring_type @@ -111,6 +113,9 @@ struct psp_funcs struct ta_ras_trigger_error_input *info); int (*ras_cure_posion)(struct psp_context *psp, uint64_t *mode_ptr); int (*rlc_autoload_start)(struct psp_context *psp); + int (*mem_training_init)(struct psp_context *psp); + void (*mem_training_fini)(struct psp_context *psp); + int (*mem_training)(struct psp_context *psp, uint32_t ops); }; #define AMDGPU_XGMI_MAX_CONNECTED_NODES 64 @@ -161,6 +166,49 @@ struct psp_dtm_context { void *dtm_shared_buf; }; +#define MEM_TRAIN_SYSTEM_SIGNATURE 0x54534942 +#define GDDR6_MEM_TRAINING_DATA_SIZE_IN_BYTES 0x1000 +#define GDDR6_MEM_TRAINING_OFFSET 0x8000 + +enum psp_memory_training_init_flag { + PSP_MEM_TRAIN_NOT_SUPPORT = 0x0, + PSP_MEM_TRAIN_SUPPORT = 0x1, + PSP_MEM_TRAIN_INIT_FAILED = 0x2, + PSP_MEM_TRAIN_RESERVE_SUCCESS = 0x4, + PSP_MEM_TRAIN_INIT_SUCCESS = 0x8, +}; + +enum psp_memory_training_ops { + PSP_MEM_TRAIN_SEND_LONG_MSG = 0x1, + PSP_MEM_TRAIN_SAVE = 0x2, + PSP_MEM_TRAIN_RESTORE = 0x4, + PSP_MEM_TRAIN_SEND_SHORT_MSG = 0x8, + PSP_MEM_TRAIN_COLD_BOOT = PSP_MEM_TRAIN_SEND_LONG_MSG, + PSP_MEM_TRAIN_RESUME = PSP_MEM_TRAIN_SEND_SHORT_MSG, +}; + +struct psp_memory_training_context { + /*training data size*/ + u64 train_data_size; + /* + * sys_cache + * cpu virtual address + * system memory buffer that used to store the training data. + */ + void *sys_cache; + + /*vram offset of the p2c training data*/ + u64 p2c_train_data_offset; + struct amdgpu_bo *p2c_bo; + + /*vram offset of the c2p training data*/ + u64 c2p_train_data_offset; + struct amdgpu_bo *c2p_bo; + + enum psp_memory_training_init_flag init; + u32 training_cnt; +}; + struct psp_context { struct amdgpu_device *adev; @@ -239,6 +287,7 @@ struct psp_context struct psp_hdcp_context hdcp_context; struct psp_dtm_context dtm_context; struct mutex mutex; + struct psp_memory_training_context mem_train_ctx; }; struct amdgpu_psp_funcs { @@ -281,6 +330,12 @@ struct amdgpu_psp_funcs { (psp)->funcs->xgmi_set_topology_info((psp), (num_device), (topology)) : -EINVAL) #define psp_rlc_autoload(psp) \ ((psp)->funcs->rlc_autoload_start ? (psp)->funcs->rlc_autoload_start((psp)) : 0) +#define psp_mem_training_init(psp) \ + ((psp)->funcs->mem_training_init ? (psp)->funcs->mem_training_init((psp)) : 0) +#define psp_mem_training_fini(psp) \ + ((psp)->funcs->mem_training_fini ? (psp)->funcs->mem_training_fini((psp)) : 0) +#define psp_mem_training(psp, ops) \ + ((psp)->funcs->mem_training ? (psp)->funcs->mem_training((psp), (ops)) : 0) #define amdgpu_psp_check_fw_loading_status(adev, i) (adev)->firmware.funcs->check_fw_loading_status((adev), (i)) -- 2.45.2