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drm/amdgpu/sriov: give 8s for recover vram under RUNTIME 

Extend the timeout for recovering vram bos from shadows on sr-iov
to cover the worst case scenario for timeslices and VFs

Under runtime, the wait fence time could be quite long when
other VFs are in exclusive mode. For example, for 4 VF, every
VF's exclusive timeout time is set to 3s, then the worst case is
9s. If the VF number is more than 4,then the worst case time will
be longer.
The 8s is the test data, with setting to 8s, it will pass the TDR
test for 1000 times.

SWDEV-161490

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Emily Deng 2018-08-09 10:03:04 +08:00 committed by Alex Deucher
parent 275e6fa8ec
commit b045d3af7d
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -3105,7 +3105,7 @@ static int amdgpu_device_handle_vram_lost(struct amdgpu_device *adev)
long tmo;
if (amdgpu_sriov_runtime(adev))
tmo = msecs_to_jiffies(amdgpu_lockup_timeout);
tmo = msecs_to_jiffies(8000);
else
tmo = msecs_to_jiffies(100);