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| 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_ctx.c | |
| parent | drm/amdgpu: remove unnecessary conversion to bool (diff) | |
| download | linux-dev-240c811ccde49ad336b23c582018c6001690f19d.tar.xz linux-dev-240c811ccde49ad336b23c582018c6001690f19d.zip | |
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_ctx.c')
0 files changed, 0 insertions, 0 deletions