Linux v4.7-rc4-76-g63c04ee
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Laura Abbott
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From 0502ecec1ea91a205a0e7208334001f30664b526 Mon Sep 17 00:00:00 2001
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From: Fedora Kernel Team <kernel-team@fedoraproject.org>
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Date: Mon, 20 Jun 2016 14:52:10 +0200
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Subject: [PATCH] i915/fbc: Disable on HSW by default for now
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Upstream: posted on dri-devel (and r-b'd)
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Author: cpaul@redhat.com <cpaul@redhat.com>
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AuthorDate: Thu Jun 9 11:58:15 2016 -0400
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Commit: Rob Clark <rclark@redhat.com>
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CommitDate: Thu Jun 9 15:43:07 2016 -0400
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i915/fbc: Disable on HSW by default for now
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>From https://bugs.freedesktop.org/show_bug.cgi?id=96461 :
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This was kind of a difficult bug to track down. If you're using a
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Haswell system running GNOME and you have fbc completely enabled and
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working, playing videos can result in video artifacts. Steps to
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reproduce:
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- Run GNOME
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- Ensure FBC is enabled and active
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- Download a movie, I used the ogg version of Big Buck Bunny for this
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- Run `gst-launch-1.0 filesrc location='some_movie.ogg' ! decodebin !
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glimagesink` in a terminal
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- Watch for about over a minute, you'll see small horizontal lines go
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down the screen.
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For the time being, disable FBC for Haswell by default.
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Signed-off-by: Lyude <cpaul@redhat.com>
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Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
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Cc: stable@vger.kernel.org
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---
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drivers/gpu/drm/i915/intel_fbc.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
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index d5a7cfe..647127f 100644
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--- a/drivers/gpu/drm/i915/intel_fbc.c
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+++ b/drivers/gpu/drm/i915/intel_fbc.c
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@@ -824,8 +824,7 @@ static bool intel_fbc_can_choose(struct intel_crtc *crtc)
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{
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struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
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struct intel_fbc *fbc = &dev_priv->fbc;
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- bool enable_by_default = IS_HASWELL(dev_priv) ||
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- IS_BROADWELL(dev_priv);
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+ bool enable_by_default = IS_BROADWELL(dev_priv);
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if (intel_vgpu_active(dev_priv->dev)) {
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fbc->no_fbc_reason = "VGPU is active";
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--
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2.7.4
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2
gitrev
2
gitrev
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@ -1 +1 @@
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f9020d17416ae62f1b1c6459d61e65abb4af79b5
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63c04ee7d3b7c8d8e2726cb7c5f8a5f6fcc1e3b2
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@ -69,7 +69,7 @@ Summary: The Linux kernel
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# The rc snapshot level
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%define rcrev 4
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# The git snapshot level
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%define gitrev 2
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%define gitrev 3
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# Set rpm version accordingly
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%define rpmversion 4.%{upstream_sublevel}.0
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%endif
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@ -627,9 +627,6 @@ Patch815: 0015-drm-i915-gen9-Calculate-watermarks-during-atomic-che.patch
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Patch816: 0016-drm-i915-gen9-Reject-display-updates-that-exceed-wm-.patch
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Patch817: 0017-drm-i915-Remove-wm_config-from-dev_priv-intel_atomic.patch
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#other drm/kms fixes (most Cc-ed stable)
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Patch821: 0001-i915-fbc-Disable-on-HSW-by-default-for-now.patch
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# END OF PATCH DEFINITIONS
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%endif
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@ -2155,6 +2152,9 @@ fi
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#
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#
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%changelog
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* Fri Jun 24 2016 Laura Abbott <labbott@redhat.com> - 4.7.0-0.rc4.git3.1
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- Linux v4.7-rc4-76-g63c04ee
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* Thu Jun 23 2016 Laura Abbott <labbott@redhat.com> - 4.7.0-0.rc4.git2.1
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- Linux v4.7-rc4-20-gf9020d1
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