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 <chris@xxxxxxxxxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxxx>
Cc: "Zanoni, Paulo R" <paulo.r.zanoni@xxxxxxxxx>
---
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) {
--
2.9.3
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