gpu: nvgpu: disallow invalid syncpoint wait ids

Instead of ignoring a wait when a raw syncpoint prefence has an invalid
id, reject the submit with -EINVAL just like with syncpoints in syncfds.

Change-Id: I9b5c417bd1c7cd081c79659d088ac2c915de8c0e
Signed-off-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1680281
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 5 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/channel.c b/drivers/gpu/nvgpu/common/linux/channel.c
index 07bb393e..dc35fbc0 100644
--- a/drivers/gpu/nvgpu/common/linux/channel.c
+++ b/drivers/gpu/nvgpu/common/linux/channel.c
@@ -462,11 +462,8 @@ static int gk20a_submit_prepare_syncs(struct channel_gk20a *c,
         }
 
         /*
-         * Optionally insert syncpt wait in the beginning of gpfifo submission
-         * when user requested and the wait hasn't expired. Validate that the id
-         * makes sense, elide if not. The only reason this isn't being
-         * unceremoniously killed is to keep running some tests which trigger
-         * this condition.
+         * Optionally insert syncpt/semaphore wait in the beginning of gpfifo
+         * submission when user requested and the wait hasn't expired.
          */
         if (flags & NVGPU_SUBMIT_GPFIFO_FLAGS_FENCE_WAIT) {
                 int max_wait_cmds = c->deterministic ? 1 : 0;