As intel_fb_plane_get_subsampling() returns the subsampling factor wrt. its main plane, for a CCS plane we need to apply both the main and the CCS plane's subsampling factor on the FB's dimensions to get the CCS plane's dimensions.
Cc: Dhinakaran Pandiyan <[email protected]> Cc: Mika Kahola <[email protected]> Cc: Radhakrishna Sripada <[email protected]> Cc: Ville Syrjälä <[email protected]> Cc: Matt Roper <[email protected]> Signed-off-by: Imre Deak <[email protected]> --- drivers/gpu/drm/i915/display/intel_display.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 2c2450d3469b..d5128e900660 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -2913,11 +2913,15 @@ intel_fb_check_ccs_xy(struct drm_framebuffer *fb, int ccs_plane, int x, int y) static void intel_fb_plane_dims(int *w, int *h, struct drm_framebuffer *fb, int color_plane) { + int main_plane = is_ccs_plane(fb, color_plane) ? + ccs_to_main_plane(fb, color_plane) : 0; + int main_hsub, main_vsub; int hsub, vsub; + intel_fb_plane_get_subsampling(&main_hsub, &main_vsub, fb, main_plane); intel_fb_plane_get_subsampling(&hsub, &vsub, fb, color_plane); - *w = fb->width / hsub; - *h = fb->height / vsub; + *w = fb->width / main_hsub / hsub; + *h = fb->height / main_vsub / vsub; } /* -- 2.23.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
