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gpu: nvgpu: fix tsg unbind failure paths

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nvgpu_tsg_unbind_channel_common failure handling missed
channel.clear & nvgpu_tsg_set_mmu_debug_mode calls.

Bug 200711183

Change-Id: I19fd53be55db9df725b7cf467b2673e4cd29deb5
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2521972
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Antony Clince Alex <aalex@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Sagar Kamble
2021-04-28 20:23:41 +05:30
committed by mobile promotions
parent a54e34fd74
commit 89ec2afbd4
1 changed files with 16 additions and 0 deletions
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16
drivers/gpu/nvgpu/common/fifo/tsg.c
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@@ -311,11 +311,27 @@ fail:
ch->chid, tsg->tsgid);
nvgpu_tsg_abort(g, tsg, true);
if (g->ops.channel.clear != NULL) {
g->ops.channel.clear(ch);
}
/* If channel unbind fails, channel is still part of runlist */
if (nvgpu_channel_update_runlist(ch, false) != 0) {
nvgpu_err(g, "remove ch %u from runlist failed", ch->chid);
}
#ifdef CONFIG_NVGPU_DEBUGGER
while (ch->mmu_debug_mode_refcnt > 0U) {
err = nvgpu_tsg_set_mmu_debug_mode(ch, false);
if (err != 0) {
nvgpu_err(g, "disable mmu debug mode failed ch:%u",
ch->chid);
break;
}
}
#endif
nvgpu_rwsem_down_write(&tsg->ch_list_lock);
nvgpu_list_del(&ch->ch_entry);
ch->tsgid = NVGPU_INVALID_TSG_ID;