Dan Williams 0403e38277 dmaengine: add fence support ... Some engines optimize operation by reading ahead in the descriptor chain such that descriptor2 may start execution before descriptor1 completes. If descriptor2 depends on the result from descriptor1 then a fence is required (on descriptor2) to disable this optimization. The async_tx api could implicitly identify dependencies via the 'depend_tx' parameter, but that would constrain cases where the dependency chain only specifies a completion order rather than a data dependency. So, provide an ASYNC_TX_FENCE to explicitly identify data dependencies. Signed-off-by: Dan Williams <dan.j.williams@intel.com>		2009-09-08 17:42:50 -07:00
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acpi	Merge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel	2009-04-28 17:21:20 -07:00
asm-generic	asm-generic: fix local_add_unless macro	2009-05-18 08:34:08 -07:00
crypto
drm	drm: Hook up DPMS property handling in drm_crtc.c. Add drm_helper_connector_dpms.	2009-06-04 09:32:12 +10:00
keys
linux	dmaengine: add fence support	2009-09-08 17:42:50 -07:00
math-emu
media
mtd
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6	2009-05-05 08:26:10 -07:00
pcmcia
rdma
rxrpc
scsi	[SCSI] fc-transport: Close state transition-window during rport deletion.	2009-05-15 12:16:46 -04:00
sound	ALSA: Release v1.0.20	2009-05-06 12:32:26 +02:00
trace
video
xen
Kbuild