[PATCH i-g-t v1 5/5] lib/i915/fbc: fbc psr combo support update for xe3

[Vinod Govindapillai]

Because of the FBC dirty rect support in xe3, the FBC and PSR
are not recommended to be enabled together. So if PSR2 selective
fetch is enabled, FBC will not be activated in xe3.

Signed-off-by: Vinod Govindapillai <vinod.govindapillai at intel.com>
---
 lib/i915/intel_fbc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/i915/intel_fbc.c b/lib/i915/intel_fbc.c
index 90fe5943c..3971e4920 100644
--- a/lib/i915/intel_fbc.c
+++ b/lib/i915/intel_fbc.c
@@ -167,7 +167,10 @@ bool intel_fbc_plane_size_supported(int fd, uint32_t width, uint32_t height)
  */
 bool intel_fbc_psr_combo_supported(int device)
 {
-	if (intel_display_ver(intel_get_drm_devid(device)) >= 20)
+	int ver = intel_display_ver(intel_get_drm_devid(device));
+
+	/* In Xe3 FBC PSR combo not supported because of FBC dirty rect */
+	if (ver >= 20 && ver < 30)
 		return true;
 
 	return false;
-- 
2.43.0