From: "Tianci.Yin" <tianci....@amd.com>
add interface for memory training.
Change-Id: Ibb6d1d24eb651df796bc2bb3419a44937af60242
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Tianci.Yin <tianci....@amd.com>
---
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..c6f17d6310d6 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);
+ int (*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))
--
2.20.1
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