| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.9 018/133] drm/i915: Reject 90/270 degree rotated initial fbs | Date | Mon, 9 Nov 2020 13:54:40 +0100 |
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From: Ville Syrjälä <ville.syrjala@linux.intel.com>
commit 61334ed227a5852100115180f5535b1396ed5227 upstream.
We don't currently handle the initial fb readout correctly for 90/270 degree rotated scanout. Reject it.
Cc: stable@vger.kernel.org Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20201020194330.28568-1-ville.syrjala@linux.intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit a40a8305a732f4ecc2186ac7ca132ba062ed770d) Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/gpu/drm/i915/display/intel_display.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -10589,6 +10589,10 @@ skl_get_initial_plane_config(struct inte val & PLANE_CTL_FLIP_HORIZONTAL) plane_config->rotation |= DRM_MODE_REFLECT_X; + /* 90/270 degree rotation would require extra work */ + if (drm_rotation_90_or_270(plane_config->rotation)) + goto error; + base = intel_de_read(dev_priv, PLANE_SURF(pipe, plane_id)) & 0xfffff000; plane_config->base = base;
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