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gpu: nvgpu: do not idle timed out channels

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While suspending the device, do not submit WFI on
timed out channels

Submitting WFI on timed out channels will cuase submit_wfi()
to return error and as result of this, rail gating of device
will be prevented

Bug 200010416

Change-Id: Ic097bfdae59dbf9e1f2aea5d8d0431b5f1c3721b
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/422743
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Deepak Nibade
2014-06-12 19:28:15 +05:30
committed by Dan Willemsen
parent bce383801c
commit aa3e3aaaa0
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/nvgpu/gk20a/channel_gk20a.c
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@@ -1937,7 +1937,7 @@ int gk20a_channel_suspend(struct gk20a *g)
/* idle the engine by submitting WFI on non-KEPLER_C channel */
for (chid = 0; chid < f->num_channels; chid++) {
struct channel_gk20a *c = &f->channel[chid];
if (c->in_use && c->obj_class != KEPLER_C) {
if (c->in_use && c->obj_class != KEPLER_C && !c->has_timedout) {
err = gk20a_channel_submit_wfi(c);
if (err) {
gk20a_err(d, "cannot idle channel %d\n",