gpu: nvgpu: Disallow use of bare channels

All channels need to now be wrapped in TSGs. Disallow use of bare
channels by preventing creation of GPFIFO for them.

Bug 1842197

Change-Id: Id0ebee4c590804b96c09f8951e35ba2680b596e7
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1612697
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c b/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
index 99c518b5..67264f40 100644
--- a/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
@@ -490,7 +490,8 @@ u32 gk20a_ce_create_context(struct gk20a *g,
         }
 
         /* allocate gpfifo (1024 should be more than enough) */
-        err = gk20a_channel_alloc_gpfifo(ce_ctx->ch, 1024, 0, 0);
+        err = gk20a_channel_alloc_gpfifo(ce_ctx->ch, 1024, 0,
+                        NVGPU_GPFIFO_FLAGS_ALLOW_BARE_CHANNEL);
         if (err) {
                 nvgpu_err(g, "ce: unable to allocate gpfifo");
                 goto end;