diff options
| author | Tianci.Yin <tianci.yin@amd.com> | 2020-01-09 10:38:39 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-16 21:35:37 +0300 |
| commit | 9e441478623fd913d4340654682b19f0c24e629d (patch) | |
| tree | 96f80652007306f595c0bbbdad856e40599658e3 /drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | |
| parent | 6a1094ab6882cc734af406a4815bd70b75d9b989 (diff) | |
| download | linux-9e441478623fd913d4340654682b19f0c24e629d.tar.xz | |
drm/amdgpu: fix modprobe failure of the secondary GPU when GDDR6 training enabled(V5)
[why]
In dual GPUs scenario, stolen_size is assigned to zero on the secondary GPU,
since there is no pre-OS console using that memory. Then the bottom region of
VRAM was allocated as GTT, unfortunately a small region of bottom VRAM was
encroached by UMC firmware during GDDR6 BIST training, this cause page fault.
[how]
Forcing stolen_size to 3MB, then the bottom region of VRAM was
allocated as stolen memory, GTT corruption avoid.
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Feifei Xu <Feifei.Xu@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_gmc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h index d3c27a3c43f6..86267baca07c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.h @@ -60,6 +60,11 @@ */ #define AMDGPU_GMC_FAULT_TIMEOUT 5000ULL +/* + * Default stolen memory size, 1024 * 768 * 4 + */ +#define AMDGPU_STOLEN_BIST_TRAINING_DEFAULT_SIZE 0x300000ULL + struct firmware; /* |