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path: root/drivers/gpu/drm/i915/intel_fbc.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_fbc.c')
-rw-r--r--drivers/gpu/drm/i915/intel_fbc.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index 6406b1432a2e..618f7bdab0ba 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -477,17 +477,19 @@ static struct drm_crtc *intel_fbc_find_crtc(struct drm_i915_private *dev_priv)
{
struct drm_crtc *crtc = NULL, *tmp_crtc;
enum pipe pipe;
- bool pipe_a_only = false;
+ bool pipe_a_only = false, one_pipe_only = false;
if (IS_HASWELL(dev_priv) || INTEL_INFO(dev_priv)->gen >= 8)
pipe_a_only = true;
+ else if (INTEL_INFO(dev_priv)->gen <= 4)
+ one_pipe_only = true;
for_each_pipe(dev_priv, pipe) {
tmp_crtc = dev_priv->pipe_to_crtc_mapping[pipe];
if (intel_crtc_active(tmp_crtc) &&
to_intel_crtc(tmp_crtc)->primary_enabled) {
- if (crtc) {
+ if (one_pipe_only && crtc) {
if (set_no_fbc_reason(dev_priv, FBC_MULTIPLE_PIPES))
DRM_DEBUG_KMS("more than one pipe active, disabling compression\n");
return NULL;