Re: [PATCH] drm/i915: Fix to allow render compression on primary plane of PIPEB

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not sure how this can be pushed separately even if approved at present.
why not push this as part of new patch set of the RC patches ?

but ignoring the dependency this is fine.
Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@xxxxxxxxx>

On 2/4/2016 11:44 AM, Mayuresh Gharpure wrote:
Currently, a flip with render compression enabled is failing on primary
plane of HDMI panel which is driven by PIPEB, this issue is fixed with
this patch

Change-Id: I197fe61faffad9da58733ed3f0e8cf6ef8640af7
Signed-off-by: Mayuresh Gharpure <mayuresh.s.gharpure@xxxxxxxxx>
---
Please note that this patch depends on following patch:
https://patchwork.freedesktop.org/patch/67448/

Current patch is a bug fix on the above mentioned patch
  drivers/gpu/drm/i915/intel_display.c | 12 ++++++++----
  1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 4b23ec2..f8485fa 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12777,10 +12777,6 @@ int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
if (fb && to_intel_plane_state(plane_state)->
  				render_comp_enable) {
-			if (to_intel_plane(plane)->plane != PLANE_A) {
-				DRM_DEBUG_KMS("RC supported only on planes 1 & 2\n");
-				return -EINVAL;
-			}
  			ret = skl_check_compression(dev,
  					to_intel_plane_state(plane_state),
  					intel_crtc->pipe, crtc->x, crtc->y);
@@ -15088,6 +15084,7 @@ static int skl_check_compression(struct drm_device *dev,
  		enum pipe pipe, int x, int y)
  {
  	struct drm_framebuffer *fb = plane_state->base.fb;
+	struct drm_plane *plane = plane_state->base.plane;
  	int x_offset;
  	int src_w = drm_rect_width(&plane_state->src) >> 16;
@@ -15127,6 +15124,13 @@ static int skl_check_compression(struct drm_device *dev,
  		return -EINVAL;
  	}
+ if (!(plane->type == DRM_PLANE_TYPE_PRIMARY ||
+		(plane->type == DRM_PLANE_TYPE_OVERLAY &&
+			to_intel_plane(plane)->plane == PLANE_A))) {
+		DRM_DEBUG_KMS("RC supported only on planes 1 & 2\n");
+		return -EINVAL;
+	}
+
  	if (intel_rotation_90_or_270(plane_state->base.rotation)) {
  		DRM_DEBUG_KMS("RC support only with 0/180 degree rotation\n");
  		return -EINVAL;

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