From: Christian König <christian.koenig@amd.com>
Date: Tue, 15 Dec 2015 10:10:30 +0000 (+0100)
Subject: drm/amdgpu: add warning to amdgpu_bo_gpu_offset() v2
X-Git-Tag: v4.14-rc1~3993^2~13^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=191caba6cc4c95ba282304a10a2a9cba85450317;p=platform%2Fkernel%2Flinux-rpi.git

drm/amdgpu: add warning to amdgpu_bo_gpu_offset() v2

Check if there really is a valid offset for the BO.

v2: user WARN_ON_ONCE

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
index ea756e7..5107fb2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h
@@ -96,6 +96,7 @@ static inline void amdgpu_bo_unreserve(struct amdgpu_bo *bo)
  */
 static inline u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo)
 {
+	WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_SYSTEM);
 	return bo->tbo.offset;
 }