blob: 8044c61d9e23e63098b6268c217e4b17ea01efbe [file] [log] [blame]
From d2f63c4f790c1be74679692e81889b55c9ffcda2 Mon Sep 17 00:00:00 2001
From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Tue, 4 Jun 2013 16:53:39 -0300
Subject: drm/i915: update FBC maximum fb sizes
CTG/ILK/SNB/IVB support 4kx2k surfaces. HSW supports 4kx4k, but
without proper front buffer invalidation on the last 2k lines, so
don't enable FBC on these cases for now.
v2: Use gen >= 5, not gen > 4 (Daniel).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit f85da868e3b998394634209cc1e48e0f4126901b)
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
---
drivers/gpu/drm/i915/intel_pm.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 6ce122be6b4b..da49e46062e1 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -431,7 +431,7 @@ void intel_disable_fbc(struct drm_device *dev)
* - no pixel mulitply/line duplication
* - no alpha buffer discard
* - no dual wide
- * - framebuffer <= 2048 in width, 1536 in height
+ * - framebuffer <= max_hdisplay in width, max_vdisplay in height
*
* We can't assume that any compression will take place (worst case),
* so the compressed buffer has to be the same size as the uncompressed
@@ -449,6 +449,7 @@ void intel_update_fbc(struct drm_device *dev)
struct intel_framebuffer *intel_fb;
struct drm_i915_gem_object *obj;
int enable_fbc;
+ unsigned int max_hdisplay, max_vdisplay;
if (!i915_powersave)
return;
@@ -507,8 +508,16 @@ void intel_update_fbc(struct drm_device *dev)
dev_priv->no_fbc_reason = FBC_UNSUPPORTED_MODE;
goto out_disable;
}
- if ((crtc->mode.hdisplay > 2048) ||
- (crtc->mode.vdisplay > 1536)) {
+
+ if (IS_G4X(dev) || INTEL_INFO(dev)->gen >= 5) {
+ max_hdisplay = 4096;
+ max_vdisplay = 2048;
+ } else {
+ max_hdisplay = 2048;
+ max_vdisplay = 1536;
+ }
+ if ((crtc->mode.hdisplay > max_hdisplay) ||
+ (crtc->mode.vdisplay > max_vdisplay)) {
DRM_DEBUG_KMS("mode too large for compression, disabling\n");
dev_priv->no_fbc_reason = FBC_MODE_TOO_LARGE;
goto out_disable;
--
1.8.5.rc3