[PATCH 1/2] drm/amdgpu/gfx11: return early in preempt_ib()

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When MES is enabled KIQ is not available.  Return an error
when someone uses the debugfs preempt test interface in
that case.

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 5685aee479df..5704ad25a49d 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -5924,6 +5924,9 @@ static int gfx_v11_0_ring_preempt_ib(struct amdgpu_ring *ring)
 	struct amdgpu_ring *kiq_ring = &kiq->ring;
 	unsigned long flags;
 
+	if (adev->enable_mes)
+		return -EINVAL;
+
 	if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
 		return -EINVAL;
 
-- 
2.46.0




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