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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-02-10 20:25:51 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-02-21 12:59:35 +0000 |
| commit | 8d68a90e225d831a395ba788e425cb717eec1f9a (patch) | |
| tree | 1c46eb19125ebbb205625783dd184e0489231d01 /src/mesa/drivers/dri/i965/brw_cc.c | |
| parent | 3f55683927278e57f3ef8a151d15f4cffdc060dc (diff) | |
| download | external_mesa3d-8d68a90e225d831a395ba788e425cb717eec1f9a.zip external_mesa3d-8d68a90e225d831a395ba788e425cb717eec1f9a.tar.gz external_mesa3d-8d68a90e225d831a395ba788e425cb717eec1f9a.tar.bz2 | |
intel: use pwrite for batch
It's faster. Not only is the memcpy more efficiently performed in the
kernel (making up for the system call overhead), but by not using mmap
we remove the greater overhead of tracking the vma of every batch.
And it means we can read back from the batch buffer without incurring
the cost of a uncached read through the GTT.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_cc.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_cc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_cc.c b/src/mesa/drivers/dri/i965/brw_cc.c index 408783a..c37376e 100644 --- a/src/mesa/drivers/dri/i965/brw_cc.c +++ b/src/mesa/drivers/dri/i965/brw_cc.c @@ -214,7 +214,7 @@ static void upload_cc_unit(struct brw_context *brw) brw->state.dirty.cache |= CACHE_NEW_CC_UNIT; /* Emit CC viewport relocation */ - drm_intel_bo_emit_reloc(brw->intel.batch->buf, + drm_intel_bo_emit_reloc(brw->intel.batch.bo, (brw->cc.state_offset + offsetof(struct brw_cc_unit_state, cc4)), brw->cc.vp_bo, 0, |