drm/i915/skl: Introduce intel_num_planes()
authorDamien Lespiau <damien.lespiau@intel.com>
Thu, 27 Mar 2014 18:48:33 +0000 (00:18 +0530)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Wed, 24 Sep 2014 12:57:32 +0000 (14:57 +0200)
It can be handy to get the number of planes for this pipe, ie including
the primary plane to loop over them. Introduce a little function to do
so.

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_drv.h

index 07ce04683c3091a11afeacdee99e3b1b41c03461..a09e4adda0bf8466641dbf197ce6264f2f97c6e9 100644 (file)
@@ -731,6 +731,14 @@ hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
        return container_of(intel_hdmi, struct intel_digital_port, hdmi);
 }
 
+/*
+ * Returns the number of planes for this pipe, ie the number of sprites + 1
+ * (primary plane). This doesn't count the cursor plane then.
+ */
+static inline unsigned int intel_num_planes(struct intel_crtc *crtc)
+{
+       return INTEL_INFO(crtc->base.dev)->num_sprites[crtc->pipe] + 1;
+}
 
 /* i915_irq.c */
 bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,