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| author | Dave Airlie <airlied@redhat.com> | 2009-11-20 12:15:02 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@itt42.(none)> | 2009-11-23 13:04:44 +1000 |
| commit | e20af9c94982ec6487dae42c141d33cf6a7a2eb4 (patch) | |
| tree | 6c933d03f4b0978751d5b6277f5ff3741f9035a3 /man/radeon.man | |
| parent | dd3eab848cf352bb96c3d01fe6028d8a4a8e451e (diff) | |
radeon: avoid using hw pixmaps when we have little VRAM.
This patch returns NULL for pixmap creation when we are using
mixed pixmaps and the pixmap has a size.
The size check is necessary for the front buffer.
We add a flag to force pixmap creation for certain pixmaps
that need to be hw, like the DRI2 and Xv ones.
Idea from Michel and workarounds from Ben Skeggs.
v2: add Option "EXALowVRAM" to allow configuring this, value in MBs.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'man/radeon.man')
| -rw-r--r-- | man/radeon.man | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/man/radeon.man b/man/radeon.man index 47fa9f5e..5f6d9fb0 100644 --- a/man/radeon.man +++ b/man/radeon.man @@ -606,6 +606,15 @@ The default is This option enables modesetting on R/RV4xx chips using atombios. The default is .B off. +.TP +.BI "Option \*qEXALowVRAM\*q \*q" integer \*q +(KMS Only) Under kernel modesetting to avoid thrashing pixmaps in/out +of VRAM on low memory cards, we set a threshhold for the amount of VRAM +a GPU should have before we start using VRAM to accelerate pixmaps that +aren't required to be used by the GPU. Value is in MB. This shouldn't +really be changed apart from testing. +The default is +.B 32. .SH TEXTURED VIDEO ATTRIBUTES The driver supports the following X11 Xv attributes for Textured Video. |