davidlt/kernel-ark
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
04abf5daf7
kernel-ark/drivers/dma
History
Lars-Peter Clausen 04abf5daf7 dma: pl330: Differentiate between submitted and issued descriptors 
The pl330 dmaengine driver currently does not differentiate between submitted
and issued descriptors. It won't start transferring a newly submitted
descriptor until issue_pending() is called, but only if it is idle. If it is
active and a new descriptor is submitted before it goes idle it will happily
start the newly submitted descriptor once all earlier submitted descriptors have
been completed. This is not a 100% correct with regards to the dmaengine
interface semantics. A descriptor is not supposed to be started until the next
issue_pending() call after the descriptor has been submitted. This patch adds a
second per channel list that keeps track of the submitted descriptors. Once
issue_pending() is called the submitted descriptors are moved to the working
list and only descriptors on the working list are started.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-01-20 13:50:49 +05:30
..
bestcomm drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
dw Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-11-20 13:20:24 -08:00
ioat Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine 2013-11-16 12:02:36 +05:30
ipu dmaengine: ipu: fix warnings from 64-bit dma_addr_t printouts 2013-11-13 14:10:48 +05:30
ppc4xx Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-11-20 13:20:24 -08:00
sh rcar-hpbdma: initialise plane information when halted 2013-11-28 13:46:00 +05:30
acpi-dma.c acpi-dma: remove ugly conversion 2013-08-25 16:43:45 +05:30
amba-pl08x.c dma: pl08x: allow zero slave channels 2013-12-18 21:58:30 +05:30
at_hdmac_regs.h
at_hdmac.c Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine 2013-11-16 12:02:36 +05:30
bcm2835-dma.c dmaengine: Add DMA_PRIVATE to BCM2835 driver 2014-01-20 12:31:50 +05:30
coh901318_lli.c
coh901318.c dmaengine: coh901318: use DMA_COMPLETE for dma completion status 2013-10-25 11:15:56 +05:30
coh901318.h
cppi41.c dma: cppi41: return code > 0 of pm_runtime_get_sync() is not an error 2013-11-12 14:28:25 +05:30
dma-jz4740.c dmaengine: jz4740: use DMA_COMPLETE for dma completion status 2013-10-25 11:15:58 +05:30
dmaengine.c Merge branch 'topic/of' into for-linus 2014-01-07 21:36:24 +05:30
dmaengine.h
dmatest.c Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine 2013-11-16 12:02:36 +05:30
edma.c dma: edma: Set debug level to debugging messages 2013-12-18 21:44:02 +05:30
ep93xx_dma.c dmaengine: remove DMA unmap from drivers 2013-11-14 11:04:38 -08:00
fsldma.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-11-20 13:20:24 -08:00
fsldma.h DMA: Freescale: change BWC from 256 bytes to 1024 bytes 2014-01-20 13:13:22 +05:30
imx-dma.c Merge branch 'for-linus' into next 2013-10-31 22:36:13 +05:30
imx-sdma.c dma: imx-sdma: Assign a default script number for ROM firmware cases 2014-01-13 14:52:04 +05:30
intel_mid_dma_regs.h
intel_mid_dma.c dmaengine: intel_mid_dma: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:04 +05:30
iop-adma.c Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine 2013-11-16 12:02:36 +05:30
iovlock.c
k3dma.c dmaengine: k3dma: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:07 +05:30
Kconfig dmaengine: Add MOXA ART DMA engine driver 2014-01-20 12:32:46 +05:30
Makefile dmaengine: Add MOXA ART DMA engine driver 2014-01-20 12:32:46 +05:30
mmp_pdma.c Merge branch 'topic/of' into for-linus 2014-01-07 21:36:24 +05:30
mmp_tdma.c dma:mmp_tdma: get sram pool through device tree 2014-01-09 17:46:20 +05:30
moxart-dma.c dmaengine: Add MOXA ART DMA engine driver 2014-01-20 12:32:46 +05:30
mpc512x_dma.c drivers: clean-up prom.h implicit includes 2013-10-09 20:04:04 -05:00
mv_xor.c Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine 2013-11-16 12:02:36 +05:30
mv_xor.h dma: mv_xor: Fix mis-usage of mmio 'base' and 'high_base' registers 2013-11-14 11:04:42 -08:00
mxs-dma.c dma: mxs-dma: Use semaphores for cyclic DMA 2013-11-13 15:38:31 +05:30
of-dma.c dma: add channel request API that supports deferred probe 2013-12-10 17:46:48 +05:30
omap-dma.c dmaengine: omap: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:11 +05:30
pch_dma.c pch_dma: Add MODULE_DEVICE_TABLE 2013-09-02 11:59:58 +05:30
pl330.c dma: pl330: Differentiate between submitted and issued descriptors 2014-01-20 13:50:49 +05:30
s3c24xx-dma.c dma: fix build breakage in s3c24xx-dma 2013-12-04 11:24:30 +05:30
sa11x0-dma.c dmaengine: sa11x0: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:13 +05:30
sirf-dma.c dmaengine: sirf: Add device_slave_caps interface 2014-01-20 13:17:31 +05:30
ste_dma40_ll.c
ste_dma40_ll.h
ste_dma40.c dmaengine: ste: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:15 +05:30
tegra20-apb-dma.c dmaengine: tegra: use DMA_COMPLETE for dma completion status 2013-10-25 11:16:16 +05:30
timb_dma.c dmaengine: remove DMA unmap from drivers 2013-11-14 11:04:38 -08:00
TODO
txx9dmac.c Merge commit 'dmaengine-3.13-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/dmaengine 2013-11-16 12:02:36 +05:30
txx9dmac.h
virt-dma.c
virt-dma.h