debian/changelog | 10 ++
debian/patches/119_disable_relaxed_fencing.path | 113 ++++++++++++++++++++++++
debian/patches/series | 1
3 files changed, 124 insertions(+)
New commits:
commit 9223bdadaa370bfaf4ed34256a42f7feea115c66
Author: Bryce Harrington <br...@canonical.com>
Date: Fri Apr 22 17:38:43 2011 -0700
Add relaxed fencing path as an SRU. Fixes i915/i945 freeze bugs.
diff --git a/debian/changelog b/debian/changelog
index a880598..24f6cd9 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,13 @@
+xserver-xorg-video-intel (2:2.14.0-4ubuntu7.1) natty-proposed; urgency=low
+
+ * Add 119_disable_relaxed_fencing.patch: The relaxed fencing
+ optimization is suspected as the cause for various i915/945 gpu lockup
+ issues. This disables the optimization by default but adds an
+ xorg.conf parameter to let people experiment with it turned on.
+ (LP: #727594)
+
+ -- Bryce Harrington <br...@ubuntu.com> Fri, 22 Apr 2011 17:34:53 -0700
+
xserver-xorg-video-intel (2:2.14.0-4ubuntu7) natty; urgency=low
* Add 102_gen6_invalidate_texture_cache.patch: Fix corruption in KDE
diff --git a/debian/patches/119_disable_relaxed_fencing.path
b/debian/patches/119_disable_relaxed_fencing.path
new file mode 100644
index 0000000..06e25da
--- /dev/null
+++ b/debian/patches/119_disable_relaxed_fencing.path
@@ -0,0 +1,113 @@
+diff --git a/man/intel.man b/man/intel.man
+index db4c145..0c9cc0d 100644
+--- a/man/intel.man
++++ b/man/intel.man
+@@ -187,6 +187,15 @@ performance.
+ .IP
+ Default: enabled.
+ .TP
++.BI "Option \*qRelaxedFencing\*q \*q" boolean \*q
++This option controls whether we attempt to allocate the minimal amount of
++memory required for the buffers. The reduction in working set has a
substantial
++improvement on system performance. However, this has been demonstrate to be
++buggy on older hardware (845-865 and 915-945, but ok on PineView and later)
++so on those chipsets defaults to off.
++.IP
++Default: Enabled for G33 (includes PineView), and later, class machines.
++.TP
+ .BI "Option \*qXvMC\*q \*q" boolean \*q
+ Enable XvMC driver. Current support MPEG2 MC on 915/945 and G33 series.
+ User should provide absolute path to libIntelXvMC.so in XvMCConfig file.
+diff --git a/src/intel_driver.c b/src/intel_driver.c
+index 1275e4b..2d9bc02 100644
+--- a/src/intel_driver.c
++++ b/src/intel_driver.c
+@@ -108,6 +108,7 @@ typedef enum {
+ OPTION_DEBUG_FLUSH_CACHES,
+ OPTION_DEBUG_WAIT,
+ OPTION_HOTPLUG,
++ OPTION_RELAXED_FENCING,
+ } I830Opts;
+
+ static OptionInfoRec I830Options[] = {
+@@ -127,6 +128,7 @@ static OptionInfoRec I830Options[] = {
+ {OPTION_DEBUG_FLUSH_CACHES, "DebugFlushCaches", OPTV_BOOLEAN, {0}, FALSE},
+ {OPTION_DEBUG_WAIT, "DebugWait", OPTV_BOOLEAN, {0}, FALSE},
+ {OPTION_HOTPLUG, "HotPlug", OPTV_BOOLEAN, {0}, TRUE},
++ {OPTION_RELAXED_FENCING, "RelaxedFencing", OPTV_BOOLEAN, {0},
TRUE},
+ {-1, NULL, OPTV_NONE, {0}, FALSE}
+ };
+ /* *INDENT-ON* */
+@@ -464,6 +466,30 @@ static void I830XvInit(ScrnInfoPtr scrn)
+ intel->colorKey);
+ }
+
++static Bool drm_has_boolean_param(struct intel_screen_private *intel,
++ int param)
++{
++ drm_i915_getparam_t gp;
++ int value;
++
++ /* The BLT ring was introduced at the same time as the
++ * automatic flush for the busy-ioctl.
++ */
++
++ gp.value = &value;
++ gp.param = param;
++ if (drmIoctl(intel->drmSubFD, DRM_IOCTL_I915_GETPARAM, &gp))
++ return FALSE;
++
++ return value;
++}
++
++
++static Bool has_relaxed_fencing(struct intel_screen_private *intel)
++{
++ return drm_has_boolean_param(intel, I915_PARAM_HAS_RELAXED_FENCING);
++}
++
+ static Bool can_accelerate_blt(struct intel_screen_private *intel)
+ {
+ if (0 && (IS_I830(intel) || IS_845G(intel))) {
+@@ -630,6 +656,18 @@ static Bool I830PreInit(ScrnInfoPtr scrn, int flags)
+ " 2D GPU acceleration disabled.\n");
+ }
+
++ intel->has_relaxed_fencing =
++ xf86ReturnOptValBool(intel->Options,
++ OPTION_RELAXED_FENCING,
++ INTEL_INFO(intel)->gen >= 33);
++ /* And override the user if there is no kernel support */
++ if (intel->has_relaxed_fencing)
++ intel->has_relaxed_fencing = has_relaxed_fencing(intel);
++
++ xf86DrvMsg(scrn->scrnIndex, X_CONFIG,
++ "Relaxed fencing %s\n",
++ intel->has_relaxed_fencing ? "enabled" : "disabled");
++
+ /* SwapBuffers delays to avoid tearing */
+ intel->swapbuffers_wait = TRUE;
+
+diff --git a/src/intel_memory.c b/src/intel_memory.c
+index e9ea58d..e88fcef 100644
+--- a/src/intel_memory.c
++++ b/src/intel_memory.c
+@@ -294,8 +294,6 @@ void intel_set_gem_max_sizes(ScrnInfoPtr scrn)
+ {
+ intel_screen_private *intel = intel_get_screen_private(scrn);
+ struct drm_i915_gem_get_aperture aperture;
+- drm_i915_getparam_t gp;
+- int ret, value;
+
+ aperture.aper_available_size = 0;
+ drmIoctl(intel->drmSubFD, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
+@@ -303,9 +301,4 @@ void intel_set_gem_max_sizes(ScrnInfoPtr scrn)
+ intel_set_max_bo_size(intel, &aperture);
+ intel_set_max_gtt_map_size(intel, &aperture);
+ intel_set_max_tiling_size(intel, &aperture);
+-
+- gp.value = &value;
+- gp.param = I915_PARAM_HAS_RELAXED_FENCING;
+- ret = drmIoctl(intel->drmSubFD, DRM_IOCTL_I915_GETPARAM, &gp);
+- intel->has_relaxed_fencing = ret == 0;
+ }
diff --git a/debian/patches/series b/debian/patches/series
index 5acc86c..857a420 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -12,3 +12,4 @@
114_warnings_cleanup_part_2.patch
115_quell_vblank_counter_failed.patch
117_946gz_isreally_965g.patch
+119_disable_relaxed_fencing.path
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