drm/amdgpu/gfx9: reserve kiq eop object before unmapping it

It's required.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 861b1eccd714..f46eb293cb17 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -600,7 +600,11 @@ static int gfx_v9_0_kiq_init(struct amdgpu_device *adev)
 
         memset(hpd, 0, MEC_HPD_SIZE);
 
+        r = amdgpu_bo_reserve(kiq->eop_obj, false);
+        if (unlikely(r != 0))
+                dev_warn(adev->dev, "(%d) reserve kiq eop bo failed\n", r);
         amdgpu_bo_kunmap(kiq->eop_obj);
+        amdgpu_bo_unreserve(kiq->eop_obj);
 
         return 0;
 }