[PATCH 1/2] drm/amdgpu: don't clean the framebuffer for VF

[Pixel Ding]

The SRIOV host driver cleans framebuffer for each VF, guest driver
needn't this action which costs much time on some virtualization
platform, otherwise it might get timeout to initialize.

Signed-off-by: Pixel Ding <Pixel.Ding at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
index 1e735c4..f1eb4f5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -242,7 +242,9 @@ static int amdgpufb_create(struct drm_fb_helper *helper,
 	/* setup helper */
 	rfbdev->helper.fb = fb;
 
-	memset_io(abo->kptr, 0x0, amdgpu_bo_size(abo));
+	if (!amdgpu_sriov_vf(adev)) {
+		memset_io(abo->kptr, 0x0, amdgpu_bo_size(abo));
+	}
 
 	strcpy(info->fix.id, "amdgpudrmfb");
 
-- 
2.7.4