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a5a488db42
linux/drivers/dma
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Russell King a5a488db42 dmaengine: PL08x: rejig physical channel allocation 
Rework the physical channel allocation mechanism to only allocate
physical channels to virtual channels when they're about to be used.
This eliminates all the complexity with holding channels while
descriptors are being prepared, which is completely unnecessary.

This also brings this driver to a state where the generic virtual DMA
code can be used with this driver, and opens up the possibility of
properly scheduling and prioritorising physical DMA channels to
virtual DMA channels.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-07-01 14:15:57 +01:00
..
ioat dmaengine-fixes for 3.4-rc3 2012-04-10 15:30:16 -07:00
ipu dmaengine i.MX ipu: clk_prepare/unprepare clock 2012-04-25 17:03:43 +02:00
ppc4xx dmaengine: ensure all DMA engine drivers initialize their cookies 2012-03-13 11:37:42 +05:30
amba-pl08x.c dmaengine: PL08x: rejig physical channel allocation 2012-07-01 14:15:57 +01:00
at_hdmac_regs.h dmaengine: at_hdmac: take maxburst from slave configuration 2012-05-15 08:47:18 +05:30
at_hdmac.c dmaengine: at_hdmac: take maxburst from slave configuration 2012-05-15 08:47:18 +05:30
coh901318_lli.c dmaengine: Use sg_dma_address instead of sg_phys 2012-05-11 12:04:38 +05:30
coh901318_lli.h dmaengine: move drivers to dma_transfer_direction 2011-10-27 20:53:43 +05:30
coh901318.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-05-25 09:31:59 -07:00
dmaengine.c dmaengine-fixes for 3.4-rc3 2012-04-10 15:30:16 -07:00
dmaengine.h dmaengine: consolidate initialization of cookies 2012-03-13 11:37:22 +05:30
dmatest.c dmaengine: fix missing 'cnt' in ?: in dmatest 2012-01-23 11:43:18 -08:00
dw_dmac_regs.h dmaengine: move last completed cookie into generic dma_chan structure 2012-03-13 11:36:06 +05:30
dw_dmac.c Viresh has moved 2012-06-20 14:39:36 -07:00
ep93xx_dma.c arm-soc: driver specific updates 2012-05-26 12:22:27 -07:00
fsldma.c dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic 2012-03-21 19:20:23 +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 dmaengine: Use dma_sg_len(sg) instead of sg->length 2012-05-11 12:04:38 +05:30
imx-sdma.c dma: imx-sdma: buf_tail should be initialize in prepare function 2012-06-07 13:48:42 +05:30
intel_mid_dma_regs.h dmaengine: move last completed cookie into generic dma_chan structure 2012-03-13 11:36:06 +05:30
intel_mid_dma.c dmaengine: Use dma_sg_len(sg) instead of sg->length 2012-05-11 12:04:38 +05:30
iop-adma.c dmaengine-fixes for 3.4-rc3 2012-04-10 15:30:16 -07:00
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 dmaengine: split out virtual channel DMA support from sa11x0 driver 2012-07-01 14:15:21 +01:00
Makefile dmaengine: split out virtual channel DMA support from sa11x0 driver 2012-07-01 14:15:21 +01:00
mpc512x_dma.c dmaengine: consolidate initialization of cookies 2012-03-13 11:37:22 +05:30
mv_xor.c ARM: Orion: XOR: Add support for clk 2012-05-08 16:34:02 -07:00
mv_xor.h ARM: Orion: XOR: Add support for clk 2012-05-08 16:34:02 -07:00
mxs-dma.c arm-soc: device tree conversions, part 2 2012-05-26 12:57:47 -07:00
pch_dma.c dmaengine: Use sg_dma_address instead of sg_phys 2012-05-11 12:04:38 +05:30
pl330.c DMA: PL330: Fix racy mutex unlock 2012-06-14 08:39:52 +05:30
sa11x0-dma.c dmaengine: split out virtual channel DMA support from sa11x0 driver 2012-07-01 14:15:21 +01:00
shdma.c dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic 2012-03-21 19:20:23 +05:30
shdma.h dmaengine: move last completed cookie into generic dma_chan structure 2012-03-13 11:36:06 +05:30
sirf-dma.c dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic 2012-03-21 19:20:23 +05:30
ste_dma40_ll.c dma40: cyclic xfer support 2011-01-30 22:27:21 -08:00
ste_dma40_ll.h dma40: Improve the logic of stopping logical chan 2012-04-23 17:56:17 +05:30
ste_dma40.c dmaengine: Use dma_sg_len(sg) instead of sg->length 2012-05-11 12:04:38 +05:30
timb_dma.c dmaengine: add context parameter to prep_slave_sg and prep_dma_cyclic 2012-03-21 19:20:23 +05:30
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