NAK This behavior that Hypervisor cleans framebuffer for each VF is only on AWS, Regular GIM doesn't clean framebuffer after FLR, so guest driver still need this cleaning, Please keep this patch in your AWS branch only. BR Monk -----Original Message----- From: amd-gfx [mailto:amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Xiangliang Yu Sent: Thursday, May 04, 2017 2:34 PM To: amd-gfx at lists.freedesktop.org Cc: Ding, Pixel <Pixel.Ding at amd.com>; Yu, Xiangliang <Xiangliang.Yu at amd.com> Subject: [PATCH 3/6] drm/amdgpu: don't clean the framebuffer for VF From: Pixel Ding <Pixel.Ding@xxxxxxx> 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> Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c index e869e60..6f5d994 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c @@ -242,6 +242,9 @@ static int amdgpufb_create(struct drm_fb_helper *helper, /* setup helper */ rfbdev->helper.fb = fb; + if (!amdgpu_sriov_vf(adev)) + memset_io(abo->kptr, 0x0, amdgpu_bo_size(abo)); + strcpy(info->fix.id, "amdgpudrmfb"); drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); -- 2.7.4 _______________________________________________ amd-gfx mailing list amd-gfx at lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx
