Ludovic Desroches d202f05158 dmaengine: at_hdmac: fix race condition in atc_advance_work() ...

The BUG_ON() directive is triggered probably due to a latency
modification following inclusion of commit c10d73671ad3 ("softirq:
reduce latencies").  This condition has not been met before 3.9-rc1 and
doesn't trigger without this patch.

We now make sure that DMA channel is idle before calling
atc_complete_all() which makes the BUG_ON() "protection" useless.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-04-18 08:54:22 -07:00

..

bestcomm

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

2013-02-23 17:09:55 -08:00

ioat

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

ipu

dma: ipu_idmac: reuse is_slave_direction helper

2013-01-12 05:07:22 -08:00

ppc4xx

Drivers: dma: remove __dev* attributes.

2013-01-03 15:57:15 -08:00

sh

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

amba-pl08x.c

pl080.h: moved from arm/include/asm/hardware to include/linux/amba/

2013-01-13 05:19:45 -08:00

at_hdmac_regs.h

dma: Convert dev_printk(KERN_<LEVEL> to dev_<level>(

2013-01-07 22:04:56 -08:00

at_hdmac.c

dmaengine: at_hdmac: fix race condition in atc_advance_work()

2013-04-18 08:54:22 -07:00

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

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

coh901318.h

dma: coh901318: merge header files

2013-01-07 17:36:37 +01:00

dmaengine.c

dmaengine: convert to idr_alloc()

2013-02-27 19:10:15 -08:00

dmaengine.h

dmaengine: consolidate initialization of cookies

2012-03-13 11:37:22 +05:30

dmatest.c

dmaengine/dmatest: terminate transfers only in case of errors

2013-01-07 22:05:07 -08:00

dw_dmac_regs.h

dw_dmac: adjust slave_id accordingly to request line base

2013-03-30 04:34:07 +05:30

dw_dmac.c

dw_dmac: adjust slave_id accordingly to request line base

2013-03-30 04:34:07 +05:30

edma.c

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

ep93xx_dma.c

dma: ep93xx_dma: reuse is_slave_direction helper

2013-01-12 05:07:22 -08:00

fsldma.c

dma: remove use of __devinit

2012-11-28 12:42:36 -08:00

fsldma.h

dmaengine: move last completed cookie into generic dma_chan structure

2012-03-13 11:36:06 +05:30

imx-dma.c

Merge 3.8-rc5 into driver-core-next

2013-01-25 21:06:30 -08:00

imx-sdma.c

dma: imx-sdma: remove unneeded mach/hardware.h inclusion

2012-10-15 10:03:13 +08:00

intel_mid_dma_regs.h

dma: fix comments

2012-09-01 08:57:12 -07:00

intel_mid_dma.c

Drivers: dma: remove __dev* attributes.

2013-01-03 15:57:15 -08:00

iop-adma.c

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

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

Kconfig

drivers/Kconfig: add several missing GENERIC_HARDIRQS dependencies

2013-03-21 13:35:37 +01:00

Makefile

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

mmp_pdma.c

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

mmp_tdma.c

dma: Convert to devm_ioremap_resource()

2013-01-25 12:21:46 -08:00

mpc512x_dma.c

Drivers: dma: remove __dev* attributes.

2013-01-03 15:57:15 -08:00

mv_xor.c

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

mv_xor.h

dma: mv_xor: clear the window override control registers

2012-11-22 18:16:37 +01:00

mxs-dma.c

dma: mxs-dma: Fix build warnings with W=1

2013-01-08 07:35:27 -08:00

of-dma.c

dma: of-dma: protect list write operation by spin_lock

2013-02-14 20:00:53 +05:30

omap-dma.c

dmaengine: omap-dma: Start DMA without delay for cyclic channels

2013-04-10 10:33:30 +05:30

pch_dma.c

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

pl330.c

DMA: PL330: Add check if device tree compatible

2013-04-02 23:11:04 +05:30

sa11x0-dma.c

Drivers: dma: remove __dev* attributes.

2013-01-03 15:57:15 -08:00

sirf-dma.c

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

ste_dma40_ll.c

dmaengine: ste_dma40: minor cosmetic fixes

2013-01-14 10:51:01 +01:00

ste_dma40_ll.h

dmaengine: ste_dma40: support more than 128 event lines

2013-01-14 10:50:48 +01:00

ste_dma40.c

dmaengine: ste_dma40: do not remove descriptors for cyclic transfers

2013-02-14 19:54:31 +05:30

tegra20-apb-dma.c

Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma

2013-02-26 09:24:48 -08:00

timb_dma.c

Drivers: dma: remove __dev* attributes.

2013-01-03 15:57:15 -08:00

TODO

dmaengine: remove ste_dma40 from issue_pending TODO

2011-07-14 04:02:08 +05:30

txx9dmac.c

dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic

2012-03-21 19:20:23 +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