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(parent: 9024fb0) | patch
drm/amd/amdgpu: add error handling to amdgpu_virt_read_pf2vf_data
authorJingwen Chen <Jingwen.Chen2@amd.com>
Tue, 19 Jan 2021 08:54:50 +0000 (16:54 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 25 Jan 2021 22:46:48 +0000 (17:46 -0500)
commit64dcf2f01d59cf9fad19b1a387bd39736a8f4d69
tree840a300244954cba88eead9f62f54e2bb2b66100tree | snapshot
parent9024fb08159ae8f3a707c9f1facb878c84aae735commit | diff
drm/amd/amdgpu: add error handling to amdgpu_virt_read_pf2vf_data

[Why]
when vram lost happened in guest, try to write vram can lead to
kernel stuck.

[How]
When the readback data is invalid, don't do write work, directly
reschedule a new work.

Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Reviewed-by: Monk Liu<monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c diff | blob | history
Domain: System / Kernel;