diff options
| author | Tianci.Yin <tianci.yin@amd.com> | 2020-01-20 15:08:35 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-22 16:55:27 -0500 |
| commit | 240c811ccde49ad336b23c582018c6001690f19d (patch) | |
| tree | f2a7f85ddec9743d9ad206877186822c2a419791 /drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | |
| parent | a9d4fe2fd6529c3129ec6883b8649ea5c7eee4d3 (diff) | |
drm/amdgpu: fix VRAM partially encroached issue in GDDR6 memory training(V2)
[why]
In GDDR6 BIST training, a certain mount of bottom VRAM will be encroached by
UMC, that causes problems(like GTT corrupted and page fault observed).
[how]
Saving the content of this bottom VRAM to system memory before training, and
restoring it after training to avoid VRAM corruption.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h index 3265487b859f..611021514c52 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.h @@ -172,6 +172,8 @@ struct psp_dtm_context { #define MEM_TRAIN_SYSTEM_SIGNATURE 0x54534942 #define GDDR6_MEM_TRAINING_DATA_SIZE_IN_BYTES 0x1000 #define GDDR6_MEM_TRAINING_OFFSET 0x8000 +/*Define the VRAM size that will be encroached by BIST training.*/ +#define GDDR6_MEM_TRAINING_ENCROACHED_SIZE 0x2000000 enum psp_memory_training_init_flag { PSP_MEM_TRAIN_NOT_SUPPORT = 0x0, |