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linux/drivers/dma
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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 c10d73671a ("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
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
TODO dmaengine: remove ste_dma40 from issue_pending TODO 2011-07-14 04:02:08 +05:30
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.c dmaengine: at_hdmac: fix race condition in atc_advance_work() 2013-04-18 08:54:22 -07:00
at_hdmac_regs.h dma: Convert dev_printk(KERN_<LEVEL> to dev_<level>( 2013-01-07 22:04:56 -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
coh901318_lli.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2013-02-26 09:24:48 -08:00
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.c dw_dmac: adjust slave_id accordingly to request line base 2013-03-30 04:34:07 +05:30
dw_dmac_regs.h 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.c Drivers: dma: remove __dev* attributes. 2013-01-03 15:57:15 -08:00
intel_mid_dma_regs.h dma: fix comments 2012-09-01 08:57:12 -07:00
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
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.c dmaengine: ste_dma40: do not remove descriptors for cyclic transfers 2013-02-14 19:54:31 +05:30
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
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
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