drm/radeon: fix const IB handling v2

Const IBs are executed on the CE not the CP, so we can't
fence them in the normal way.

So submit them directly before the IB instead, just as
the documentation says.

v2: keep the extra documentation

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 3156d251b3c2..c2e506919995 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2619,7 +2619,7 @@ int r600_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
         ib.ptr[1] = ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
         ib.ptr[2] = 0xDEADBEEF;
         ib.length_dw = 3;
-        r = radeon_ib_schedule(rdev, &ib);
+        r = radeon_ib_schedule(rdev, &ib, NULL);
         if (r) {
                 radeon_scratch_free(rdev, scratch);
                 radeon_ib_free(rdev, &ib);