diff options
| author | Eric Anholt <eric@anholt.net> | 2007-01-11 10:36:33 -0800 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2007-01-11 11:03:13 -0800 |
| commit | f5d528f8ea27de31054e7f1843e34d8379f811ea (patch) | |
| tree | 08473ddc682e2d38381d1f2efab0e34e2ae3e80d /man | |
| parent | d13bc016c0723f1df633ddaf5610ad73003b7c96 (diff) | |
Don't limit cachelines to a vertical of 2048, and increase default allocation.
The cachelines are used for two things: XAA pixmap cache and XV memory.
Only XAA pixmap cache is referred to using an offset pointing at the
beginning of the front buffer in rendering, and XAA only uses the 2d BLT
engine, which actually has a vertical limit of 65536. So, pixmap cache is now
limited to that much vertical.
Additionally, the previous cachelines allocation was too small for our
advertised XV limits, so video at the limits would fail with BadAlloc. Now,
XAA allocates the same approximate amount of offscreen memory as EXA:
3 times the screen size, plus one packed HD video.
Diffstat (limited to 'man')
| -rw-r--r-- | man/i810.man | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/man/i810.man b/man/i810.man index ff458098..d1ee2da0 100644 --- a/man/i810.man +++ b/man/i810.man @@ -84,9 +84,12 @@ This allows the user to change the amount of graphics memory used for 2D acceleration and video. Decreasing this amount leaves more for 3D textures. Increasing it can improve 2D performance at the expense of 3D performance. +.TP +This option only takes effect when XAA acceleration is enabled. +.TP Default: depends on the resolution, depth, and available video memory. The -driver attempts to allocate at least enough to hold two DVD-sized YUV buffers -by default. The default used for a specific configuration can be found +driver attempts to allocate space for at 3 screenfuls of pixmaps plus an +HD-sized XV video. The default used for a specific configuration can be found by examining the __xservername__ log file. .TP .BI "Option \*qDRI\*q \*q" boolean \*q |