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

[Alex Deucher]

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.deuc...@amd.com>
---
 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