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authorChris Wilson <chris@chris-wilson.co.uk>2011-04-12 08:23:04 +0100
committerChris Wilson <chris@chris-wilson.co.uk>2011-04-12 09:03:01 +0100
commit686018f283f1d131073ef5917213e6a8ac013f26 (patch)
tree20f4f3a67abba6bebf15f05887e0734da478e4fc /man
parent3d2b79098ccb3fed86be66f619f4ed338741d454 (diff)
Turn relaxed-fencing off by default for older (pre-G33) chipsets
There are still too many unresolved bugs, typically GPU hangs, that are related to using relaxed fencing (i.e. only allocating the minimal amount of memory required for a buffer) on older hardware, so turn off the feature by default for the release. Reported-and-tested-by: Knut Petersen <Knut_Petersen@t-online.de> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=36147 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'man')
-rw-r--r--man/intel.man9
1 files changed, 9 insertions, 0 deletions
diff --git a/man/intel.man b/man/intel.man
index 4fd0ce73..85e2b2ea 100644
--- a/man/intel.man
+++ b/man/intel.man
@@ -195,6 +195,15 @@ you may wish to override this and force a linear layout.
.IP
Default: disabled
.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.