[PATCH] drm/xe/xe_sync: Add debug printing to check_ufence

[Jonathan Cavitt <jonathan.cavitt@intel.com>]

The xe_sync helper function check_ufence can occasionally report EBUSY
if the ufence has not been signalled yet.  EBUSY is a non-fatal error
value for the function, so it is not desireable to warn in cases where
EBUSY is reported because it is up to the user to decide if EBUSY is a
fatal error in their use cases.  However, we can and should report EBUSY
to the debug logs for diagnostic purposes.

Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
---
 drivers/gpu/drm/xe/xe_vm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index 610226c7c1ce..09ab7111e091 100644
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -2400,7 +2400,7 @@ static int op_lock_and_prep(struct drm_exec *exec, struct xe_vm *vm,
 		break;
 	case DRM_GPUVA_OP_REMAP:
 		err = check_ufence(gpuva_to_vma(op->base.remap.unmap->va));
-		if (err)
+		if (XE_IOCTL_DBG(vm->xe, err))
 			break;
 
 		err = vma_lock_and_validate(exec,
@@ -2413,7 +2413,7 @@ static int op_lock_and_prep(struct drm_exec *exec, struct xe_vm *vm,
 		break;
 	case DRM_GPUVA_OP_UNMAP:
 		err = check_ufence(gpuva_to_vma(op->base.unmap.va));
-		if (err)
+		if (XE_IOCTL_DBG(vm->xe, err))
 			break;
 
 		err = vma_lock_and_validate(exec,
-- 
2.43.0