From 8678fdaf396c3aa3732b3d98ce2241633dbc26ba Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 19 Aug 2016 16:54:25 +0100 Subject: [PATCH] drm/i915/fbc: Allow on unfenced surfaces, for recent gen Only fbc1 is tied to using a fence. Later iterations of fbc are more flexible and allow operation on unfenced frontbuffers. Signed-off-by: Chris Wilson Cc: Daniel Vetter Cc: "Zanoni, Paulo R" Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/20160819155428.1670-3-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/intel_fbc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c index faa67624e1ed..bf8b22ad9aed 100644 --- a/drivers/gpu/drm/i915/intel_fbc.c +++ b/drivers/gpu/drm/i915/intel_fbc.c @@ -799,8 +799,10 @@ static bool intel_fbc_can_activate(struct intel_crtc *crtc) */ if (cache->fb.tiling_mode != I915_TILING_X || cache->fb.fence_reg == I915_FENCE_REG_NONE) { - fbc->no_fbc_reason = "framebuffer not tiled or fenced"; - return false; + if (INTEL_GEN(dev_priv) < 5) { + fbc->no_fbc_reason = "framebuffer not tiled or fenced"; + return false; + } } if (INTEL_INFO(dev_priv)->gen <= 4 && !IS_G4X(dev_priv) && cache->plane.rotation != DRM_ROTATE_0) { -- 2.20.1