gpu: nvgpu: check for syncpt enable

Check for syncpt enable before querying for
synpt ro map. Otherwise it is getting result
in kernel crash with syncpt support disabled.

Change-Id: Iaa13d802ec66a368f2bedd2dd1061bae29b4aaa2
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1671652
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/ioctl_as.c b/drivers/gpu/nvgpu/common/linux/ioctl_as.c
index c5769476..7559499e 100644
--- a/drivers/gpu/nvgpu/common/linux/ioctl_as.c
+++ b/drivers/gpu/nvgpu/common/linux/ioctl_as.c
@@ -270,6 +270,9 @@ static int nvgpu_as_ioctl_get_sync_ro_map(
         if (!g->ops.fifo.get_sync_ro_map)
                 return -EINVAL;
 
+        if (!gk20a_platform_has_syncpoints(g))
+                return -EINVAL;
+
         err = g->ops.fifo.get_sync_ro_map(vm, &base_gpuva, &sync_size);
         if (err)
                 return err;