gpu: nvgpu: verify channel status while closing per-platform

We right now call gk20a_fifo_tsg_unbind_channel_verify_status() to verify
channel status while unbinding a channel from TSG while closing

Add support to do this verification per-platform and keep this disabled
for vgpu platforms

Bug 200327095

Change-Id: I19fab41c74d10d528d22bd9b3982a4ed73c3b4ca
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1572368
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
index 7fc773f8..8e78b95e 100644
--- a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
@@ -1908,7 +1908,7 @@ int gk20a_fifo_force_reset_ch(struct channel_gk20a *ch,
         return 0;
 }
 
-static int gk20a_fifo_tsg_unbind_channel_verify_status(struct channel_gk20a *ch)
+int gk20a_fifo_tsg_unbind_channel_verify_status(struct channel_gk20a *ch)
 {
         struct gk20a *g = ch->g;
 
@@ -1939,9 +1939,11 @@ int gk20a_fifo_tsg_unbind_channel(struct channel_gk20a *ch)
         if (err)
                 goto fail_enable_tsg;
 
-        err = gk20a_fifo_tsg_unbind_channel_verify_status(ch);
-        if (err)
-                goto fail_enable_tsg;
+        if (g->ops.fifo.tsg_verify_channel_status) {
+                err = g->ops.fifo.tsg_verify_channel_status(ch);
+                if (err)
+                        goto fail_enable_tsg;
+        }
 
         /* Channel should be seen as TSG channel while updating runlist */
         err = channel_gk20a_update_runlist(ch, false);