diff options
| author | Deepak Nibade <dnibade@nvidia.com> | 2017-10-25 09:21:41 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-10-26 04:06:49 -0400 |
| commit | 0d4272b65733744c7198b57bd03e3d261fb1740f (patch) | |
| tree | c2abdbbfd5546d6330a2c1be6397ae0d450d2893 /drivers/gpu/nvgpu/gk20a/hal.c | |
| parent | 6bf40e523740279761f3fdc3d84000acc2f62aba (diff) | |
gpu: nvgpu: don't re-enable TSG if timed out
In gk20a_fifo_tsg_unbind_channel(), we disable/preempt TSG, unbind one channel
from TSG, and then re-enable rest of the channels in TSG
But it is possible that TSG has already timed out due to some error and is
already disabled
If we re-enable all channels in such case, it can cause random issues right
after re-enabling faulted channel
Hence do not re-enable TSG if it has timedout
Since we disable all channels of TSG if one channel encounters fatal error,
it is safe to assume that TSG has timed out if one channel has timed out
Bug 1958308
Bug 200327095
Change-Id: I958ca6a2b408ff1338f2e551a79c072f1e203eda
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1585421
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/hal.c')
0 files changed, 0 insertions, 0 deletions