gpu: nvgpu: vgpu: abort the channel right after force reset it

For gp10b and previous chips, RM server will issue fake mmu fault to
reset the channel. And the mmu fault event will be sent to vgpu client,
which will cause the client to abort the channel or tsg.
But on gv11b, RM server doesn't issue fake mmu fault any more. So I need
to abort it right after the force reset is finished.

Jira EVLR-1671

Change-Id: I11399fda84d31086ba1d4ffde5948e409cde2a28
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1597378
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c b/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
index 66b2dbef..cc56f9f8 100644
--- a/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/fifo_vgpu.c
@@ -714,6 +714,8 @@ int vgpu_fifo_force_reset_ch(struct channel_gk20a *ch,
         p->handle = ch->virt_ctx;
         err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
         WARN_ON(err || msg.ret);
+        if (!err)
+                gk20a_channel_abort(ch, false);
         return err ? err : msg.ret;
 }