[PATCH] drm/amdgpu: update sched.ready within kernel drm scheduler

[Guchun Chen]

amdgpu_test_ring_helper will set sched.ready unconditionally
based on ring test result, this will lead value mismatch between
ring->sched.ready and no_scheduler for those rings without a kernel
scheluer, after they perform ring test. This will be confused as
kernel ring no_scheduler is true, but ring->sched.ready is true as well.

Signed-off-by: Guchun Chen <guchun.chen at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 80d6e132e409..afa76d069d94 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -630,7 +630,9 @@ int amdgpu_ring_test_helper(struct amdgpu_ring *ring)
 		DRM_DEV_DEBUG(adev->dev, "ring test on %s succeeded\n",
 			      ring->name);
 
-	ring->sched.ready = !r;
+	/* Only set sched.ready on top of kernel scheduler. */
+	if (!ring->no_scheduler)
+		ring->sched.ready = !r;
 	return r;
 }
 
-- 
2.25.1