From: Christian König <christian.koenig@amd.com>
Date: Fri, 9 Sep 2016 13:39:08 +0000 (+0200)
Subject: drm/amdgpu: unbind GTT only when it is bound
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=78ab0a38bfe0e02db6e619185dd4337fc97e3ffe;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

drm/amdgpu: unbind GTT only when it is bound

Doesn't make much sense to clear the GTT when it was never filled.

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

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index b50535c3ce51..8aa3fe6c270c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -733,6 +733,9 @@ static int amdgpu_ttm_backend_unbind(struct ttm_tt *ttm)
 {
 	struct amdgpu_ttm_tt *gtt = (void *)ttm;
 
+	if (!amdgpu_ttm_is_bound(ttm))
+		return 0;
+
 	/* unbind shouldn't be done for GDS/GWS/OA in ttm_bo_clean_mm */
 	if (gtt->adev->gart.ready)
 		amdgpu_gart_unbind(gtt->adev, gtt->offset, ttm->num_pages);