Re: [PATCH v2] drm/i915/gvt: Fix tiled memory decoding bug on BDW

On 2018.12.03 16:29:23 +0800, Tina Zhang wrote:

Commit b244ffa15c8b ("drm/i915/gvt: Fix drm_format_mod value for vGPU plane") introduced a regression issue to the tiled memory decoding on BDW.

This patch can fix this issue.

Here is the issue detail: https://github.com/intel/gvt-linux/issues/61

v1->v2:

• Refine the commit message. (Zhenyu)

Fixes: b244ffa15c8b("drm/i915/gvt: Fix drm_format_mod value for vGPU plane") Signed-off-by: Tina Zhang tina.zhang@intel.com Cc: stable@vger.kernel.org # v4.19+ Cc: Zhenyu Wang zhenyuw@linux.intel.com

---

drivers/gpu/drm/i915/gvt/fb_decoder.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gvt/fb_decoder.c b/drivers/gpu/drm/i915/gvt/fb_decoder.c index 481896f..85e6736 100644 --- a/drivers/gpu/drm/i915/gvt/fb_decoder.c +++ b/drivers/gpu/drm/i915/gvt/fb_decoder.c @@ -235,7 +235,7 @@ int intel_vgpu_decode_primary_plane(struct intel_vgpu *vgpu, plane->bpp = skl_pixel_formats[fmt].bpp; plane->drm_format = skl_pixel_formats[fmt].drm_format; } else {

• plane->tiled = !!(val & DISPPLANE_TILED);
  

• plane->tiled = val & DISPPLANE_TILED;
  

  fmt = bdw_format_to_drm(val & DISPPLANE_PIXFORMAT_MASK); plane->bpp = bdw_pixel_formats[fmt].bpp; plane->drm_format = bdw_pixel_formats[fmt].drm_format;

-- 2.7.4

Applied. Thanks!