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@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v4.19+
Cc: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx>
---
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
