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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-12-16 23:04:55 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2012-12-16 23:04:55 +0000 |
| commit | 5b0572503eab235bc7eff20d369241330c41e630 (patch) | |
| tree | 2ff5b23d0f961a56e8dce8b1734db9226ba106c4 /configure.ac | |
| parent | 805f78addf3ffb36c736df680806cf722b18fea9 (diff) | |
sna: Enable support for opting out of the kernel CS workaround
Keeping a set of pinned batches in userspace is considerably faster as
we can avoid the blit overhead. However, combining the two approaches
yields even greater performance, as fast as without either w/a, and yet
stable.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 93544372..e1530195 100644 --- a/configure.ac +++ b/configure.ac @@ -282,6 +282,15 @@ if test "x$accel" = xnone -a "x$UMS_ONLY" != "xyes"; then AC_MSG_ERROR([No default acceleration option]) fi +AC_ARG_ENABLE(pinned-batches, + AS_HELP_STRING([--enable-pinned-batches], + [Enable use of "pinned batches" (experimental) [default=no]]), + [PINNED="$enableval"], + [PINNED=no]) +if test "x$PINNED" = xyes; then + AC_DEFINE(USE_PINNED_BATCHES,1,[Assume "pinned batches" support]) +fi + AC_ARG_ENABLE(userptr, AS_HELP_STRING([--enable-userptr], [Enable use of userptr (experimental) [default=no]]), |