Messages in this thread Patch in this message | | | Date | Fri, 08 Jun 2012 05:19:42 +0100 | From | Ben Hutchings <> | Subject | [ 62/82] drm/i915:: Disable FBC on SandyBridge |
| |
3.2-stable review patch. If anyone has any objections, please let me know.
------------------
From: Chris Wilson <chris@chris-wilson.co.uk>
commit d56d8b28e9247e7e35e02fbb12b12239a2c33ad1 upstream.
Enabling FBC is causing the BLT ring to run between 10-100x slower than normal and frequently lockup. The interim solution is disable FBC once more until we know why.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b3b51c4..19f35ec 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1872,7 +1872,7 @@ static void intel_update_fbc(struct drm_device *dev) if (enable_fbc < 0) { DRM_DEBUG_KMS("fbc set to per-chip default\n"); enable_fbc = 1; - if (INTEL_INFO(dev)->gen <= 5) + if (INTEL_INFO(dev)->gen <= 6) enable_fbc = 0; } if (!enable_fbc) {
| |