From: Paulo Zanoni <paulo.r.zan...@intel.com>
So allow it.
Signed-off-by: Paulo Zanoni <paulo.r.zan...@intel.com>
---
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 e8dc1d5..1c22922 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -448,17 +448,19 @@ 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;
--
2.1.3
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