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gpu: nvgpu: Destroy channel sync before releasing vm

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The semaphore backend of gk20a_channel_sync uses the channel vm. We must
destroy the channel sync before freeing the channel vm.

Bug 1450122

Change-Id: I578567b7500672534d53facc58643df49df8b305
Signed-off-by: Lauri Peltonen <lpeltonen@nvidia.com>
Reviewed-on: http://git-master/r/422159
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Lauri Peltonen
2014-06-11 14:04:37 +03:00
committed by Dan Willemsen
parent dbde063bf6
commit 664ce15717
1 changed files with 6 additions and 4 deletions
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10
drivers/gpu/nvgpu/gk20a/channel_gk20a.c
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@@ -648,6 +648,12 @@ void gk20a_free_channel(struct channel_gk20a *ch, bool finish)
channel_gk20a_free_priv_cmdbuf(ch);
/* sync must be destroyed before releasing channel vm */
if (ch->sync) {
ch->sync->destroy(ch->sync);
ch->sync = NULL;
}
/* release channel binding to the as_share */
gk20a_as_release_share(ch_vm->as_share);
@@ -660,10 +666,6 @@ unbind:
gk20a_channel_fence_close(&ch->last_submit.pre_fence);
gk20a_channel_fence_close(&ch->last_submit.post_fence);
if (ch->sync) {
ch->sync->destroy(ch->sync);
ch->sync = NULL;
}
WARN_ON(ch->sync);
/* unlink all debug sessions */