From e6cd6dc104fc3611326bf69df92090b6b7c78f60 Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Fri, 16 Oct 2015 17:55:40 -0300 Subject: [PATCH] drm/i915: check for FBC planes in the same place as the pipes This moves the pre-gen4 check from update() to enable(). The HAS_DDI in the original code is not needed since only gen 2/3 have the plane swapping code. v2: Rebase. v3: Extract fbc_on_plane_a_only() (Chris). Reviewed-by: Chris Wilson Signed-off-by: Paulo Zanoni Link: http://patchwork.freedesktop.org/patch/msgid/ --- drivers/gpu/drm/i915/intel_fbc.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index 958f973..8460e3d 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -51,6 +51,11 @@ static inline bool fbc_on_pipe_a_only(struct drm_i915_private *dev_priv) return IS_HASWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 8; } +static inline bool fbc_on_plane_a_only(struct drm_i915_private *dev_priv) +{ + return INTEL_INFO(dev_priv)->gen < 4; +} + /* * In some platforms where the CRTC's x:0/y:0 coordinates doesn't match the * frontbuffer's x:0/y:0 coordinates we lie to the hardware about the plane's @@ -514,6 +519,9 @@ static bool crtc_can_fbc(struct intel_crtc *crtc) if (fbc_on_pipe_a_only(dev_priv) && crtc->pipe != PIPE_A) return false; + if (fbc_on_plane_a_only(dev_priv) && crtc->plane != PLANE_A) + return false; + return true; } @@ -802,12 +810,6 @@ static void __intel_fbc_update(struct intel_crtc *crtc) goto out_disable; } - if ((INTEL_INFO(dev_priv)->gen < 4 || HAS_DDI(dev_priv)) && - crtc->plane != PLANE_A) { - set_no_fbc_reason(dev_priv, "FBC unsupported on plane"); - goto out_disable; - } - /* The use of a CPU fence is mandatory in order to detect writes * by the CPU to the scanout and trigger updates to the FBC. */ -- 2.7.4