drm/i915: Broaden FBC resolution limit to 4096*4096

Staring from HSW, the resolution limit of FBC has increased to
4096*4096

Issue: VIZ-2813
Change-Id: I842f64e3cf2c0d18d29ef1bcfef3b9bb1f1764ac
Signed-off-by: Daisy Sun <daisy.sun@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 537a7ee..6cd11aa 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -530,7 +530,10 @@ void intel_update_fbc(struct drm_device *dev)
                goto out_disable;
        }
 
-       if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) {
+       if (INTEL_INFO(dev)->gen >= 8 || IS_HASWELL(dev)) {
+               max_width = 4096;
+               max_height = 4096;
+       } else if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) {
                max_width = 4096;
                max_height = 2048;
        } else {