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gpu: nvgpu: skip channel status verification if TSG has timed out

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In gk20a_fifo_tsg_unbind_channel(), we always verify channel status before
unbinding a channel from TSG
But in case TSG has alread timed out we never re-enable it so it does not
make sense to inspect channel status anyways

So skip channel status verification in case TSG has timed out

Bug 200327095

Change-Id: Iccf601271290643c235c3f2656201549210a6886
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1586015
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Deepak Nibade
2017-10-26 14:57:05 +05:30
committed by mobile promotions
parent 8a9261d14a
commit 3afb2a88d5
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
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@@ -1966,7 +1966,7 @@ int gk20a_fifo_tsg_unbind_channel(struct channel_gk20a *ch)
if (err)
goto fail_enable_tsg;
if (g->ops.fifo.tsg_verify_channel_status) {
if (g->ops.fifo.tsg_verify_channel_status && !tsg_timedout) {
err = g->ops.fifo.tsg_verify_channel_status(ch);
if (err)
goto fail_enable_tsg;