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534070622d
linux/drivers/dma
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Joel Fernandes 534070622d dma: edma: Write out and handle MAX_NR_SG at a given time 
Process SG-elements in batches of MAX_NR_SG if they are greater
than MAX_NR_SG. Due to this, at any given time only those many
slots will be used in the given channel no matter how long the
scatter list is. We keep track of how much has been written
inorder to process the next batch of elements in the scatter-list
and detect completion.

For such intermediate transfer completions (one batch of MAX_NR_SG),
make use of pause and resume functions instead of start and stop
when such intermediate transfer is in progress or completed as we
donot want to clear any pending events.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2013-09-04 18:38:46 +05:30
..
bestcomm Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00
dw dma: dw: return DMA_PAUSED only if cookie status is DMA_IN_PROGRESS 2013-08-05 09:32:26 +05:30
ioat drivers/dma: remove unused support for MEMSET operations 2013-07-03 16:07:42 -07:00
ipu dma: ipu: remove unnecessary platform_set_drvdata() 2013-08-25 14:37:13 +05:30
ppc4xx Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2013-07-07 11:11:43 -07:00
sh Merge branch 'topic/sh' into for-linus 2013-09-02 17:42:35 +05:30
acpi-dma.c acpi-dma: remove ugly conversion 2013-08-25 16:43:45 +05:30
amba-pl08x.c dmaengine: PL08x: Add cyclic transfer support 2013-09-02 11:49:56 +05:30
at_hdmac_regs.h DMA: AT91: Get residual bytes in dma buffer 2013-07-05 11:40:31 +05:30
at_hdmac.c dmaengine: at_hdmac: prepare clk before calling enable 2013-07-05 11:40:57 +05:30
coh901318_lli.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-02-26 09:24:48 -08:00
coh901318.c dma: coh901318: add devicetree support 2013-06-17 13:54:27 +02:00
coh901318.h dma: coh901318: merge header files 2013-01-07 17:36:37 +01:00
dma-jz4740.c MIPS: jz4740: Remove custom DMA API 2013-07-05 11:40:52 +05:30
dmaengine.c Merge branch 'topic/of' into for-linus 2013-09-02 17:40:46 +05:30
dmaengine.h dmaengine: consolidate initialization of cookies 2012-03-13 11:37:22 +05:30
dmatest.c dmatest: do not allow to interrupt ongoing tests 2013-06-08 02:13:44 +05:30
edma.c dma: edma: Write out and handle MAX_NR_SG at a given time 2013-09-04 18:38:46 +05:30
ep93xx_dma.c ep93xx_dma: remove useless use of lock 2013-08-05 09:32:24 +05:30
fsldma.c fsldma: remove useless use of lock 2013-08-05 09:32:24 +05:30
fsldma.h dmaengine: move last completed cookie into generic dma_chan structure 2012-03-13 11:36:06 +05:30
imx-dma.c dma: imx-dma: Remove redundant NULL check 2013-09-02 17:35:58 +05:30
imx-sdma.c dma: imx-sdma: Staticize sdma_driver_data structures 2013-09-02 12:00:02 +05:30
intel_mid_dma_regs.h dma: fix comments 2012-09-01 08:57:12 -07:00
intel_mid_dma.c PM / Runtime: Rework the "runtime idle" helper routine 2013-06-03 21:49:52 +02:00
iop-adma.c dma: use dev_get_platdata() 2013-08-13 16:56:41 +05:30
iovlock.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
k3dma.c dma: k3dma: use devm_ioremap_resource() instead of devm_request_and_ioremap() 2013-09-02 17:35:34 +05:30
Kconfig dmaengine: Add hisilicon k3 DMA engine driver 2013-08-28 11:23:40 +05:30
Makefile dmaengine: Add hisilicon k3 DMA engine driver 2013-08-28 11:23:40 +05:30
mmp_pdma.c dma: mmp_pdma: set DMA_PRIVATE 2013-08-25 22:04:53 +05:30
mmp_tdma.c dma: mmp: simplify use of devm_ioremap_resource 2013-08-14 14:51:28 +05:30
mpc512x_dma.c mpc512x_dma: remove useless use of lock 2013-08-05 09:32:25 +05:30
mv_xor.c dma: use dev_get_platdata() 2013-08-13 16:56:41 +05:30
mv_xor.h drivers/dma: remove unused support for MEMSET operations 2013-07-03 16:07:42 -07:00
mxs-dma.c dma: mxs-dma: remove code left from generic DMA binding conversion 2013-08-19 14:20:21 +05:30
of-dma.c dma: of: make error message more meaningful by adding the node name 2013-08-19 14:45:05 +05:30
omap-dma.c dmaengine: OMAP: Register SDMA controller with Device Tree DMA driver 2013-04-15 09:51:19 +05:30
pch_dma.c pch_dma: Add MODULE_DEVICE_TABLE 2013-09-02 11:59:58 +05:30
pl330.c Merge branch 'topic/api_caps' into for-linus 2013-09-04 18:36:53 +05:30
sa11x0-dma.c Drivers: dma: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
sirf-dma.c dmaengine: sirf: add PM entries for sleep and runtime 2013-08-13 17:01:01 +05:30
ste_dma40_ll.c dmaengine: ste_dma40_ll: Replace meaningless register set with comment 2013-06-04 11:12:10 +02:00
ste_dma40_ll.h dmaengine: ste_dma40: Remove unnecessary call to d40_phy_cfg() 2013-05-23 21:13:19 +02:00
ste_dma40.c dma: ste_dma40: Fix potential null pointer dereference 2013-09-02 17:36:00 +05:30
tegra20-apb-dma.c tegra20-apb-dma: remove useless use of lock 2013-08-05 09:32:25 +05:30
timb_dma.c dma: use dev_get_platdata() 2013-08-13 16:56:41 +05:30
TODO dmaengine: remove ste_dma40 from issue_pending TODO 2011-07-14 04:02:08 +05:30
txx9dmac.c dma: use dev_get_platdata() 2013-08-13 16:56:41 +05:30
txx9dmac.h dmaengine: move last completed cookie into generic dma_chan structure 2012-03-13 11:36:06 +05:30
virt-dma.c dmaengine: virt-dma: add support for cyclic DMA periodic callbacks 2012-07-01 14:15:23 +01:00
virt-dma.h dmaengine: virt-dma: add support for cyclic DMA periodic callbacks 2012-07-01 14:15:23 +01:00