AuxXxilium/linux_dsm_epyc7002
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a482f4e0d8
linux_dsm_epyc7002/drivers/dma
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John Ogness a482f4e0d8 dmaengine: edma: special case slot limit workaround 
Currently drivers are limited to 19 slots for cyclic transfers.
However, if the DMA burst size is the same as the period size,
the period size can be changed to the full buffer size and
intermediate interrupts activated. Since intermediate interrupts
will trigger for each burst and the burst size is the same as
the period size, the driver will get interrupts each period as
expected. This has the benefit of allowing the functionality of
many more slots, but only uses 2 slots.

This workaround is only active if more than 19 slots are needed
and the burst size matches the period size.

Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-04-06 07:29:49 -07:00
..
bestcomm dmaengine: constify of_device_id array 2015-03-18 22:13:14 +05:30
dw dmaengine updates for 4.6 2016-03-17 12:34:54 -07:00
hsu dmaengine: hsu: speed up residue calculation 2015-12-05 14:00:34 +05:30
ioat dmaengine updates for 4.6 2016-03-17 12:34:54 -07:00
ipu genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
ppc4xx dmaengine: Remove FSF mailing addresses 2015-03-16 22:28:15 +05:30
qcom dmaengine updates for 4.6 2016-03-17 12:34:54 -07:00
sh dmaengine: rcar-dmac: clear pertinence number of channels 2016-03-03 21:51:14 +05:30
xilinx dmaengine: xilinx_vdma: Remove unnecessary variable initializations 2016-03-04 20:33:13 +05:30
acpi-dma.c dmaengine: acpi-dma: align debug message with flow 2016-02-22 09:06:09 +05:30
amba-pl08x.c dmaengine: pl08x: support dt channel assignment 2015-08-18 22:12:14 +05:30
at_hdmac_regs.h dmaengine: at_hdmac: use %pad format string for dma_addr_t 2015-11-16 09:21:05 +05:30
at_hdmac.c dmaengine: at_hdmac: use %pad format string for dma_addr_t 2015-11-16 09:21:05 +05:30
at_xdmac.c dmaengine: at_xdmac: fix residue computation 2016-03-10 16:32:36 +05:30
bcm2835-dma.c dmaengine: bcm2835-dma: Convert to use DMA pool 2015-12-05 15:36:32 +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 dmaengine: Add an enum for the dmaengine alignment constraints 2015-08-05 10:53:52 +05:30
coh901318.h dma: coh901318: merge header files 2013-01-07 17:36:37 +01:00
cppi41.c dmaengine: cppi41: add missing bitfields 2015-04-11 21:12:58 +05:30
dma-axi-dmac.c dmaengine: axi_dmac: Add synchronization support 2015-11-16 08:28:52 +05:30
dma-jz4740.c Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2015-04-24 09:49:37 -07:00
dma-jz4780.c dmaengine: jz4780: Kill tasklets before unregistering the device 2015-08-18 22:28:50 +05:30
dmaengine.c dmaengine: core: expose max burst capability to clients 2016-02-09 09:01:41 +05:30
dmaengine.h dmaengine: consolidate initialization of cookies 2012-03-13 11:37:22 +05:30
dmatest.c kernel/params: constify struct kernel_param_ops uses 2015-05-28 11:32:10 +09:30
edma.c dmaengine: edma: special case slot limit workaround 2016-04-06 07:29:49 -07:00
ep93xx_dma.c dmaengine: ep93xx: Treat STALL and NFB IRQs same way 2016-01-25 09:49:55 +05:30
fsl_raid.c dmaengine: fsl_raid: statify fsl_re_chan_probe 2015-04-02 16:11:35 +05:30
fsl_raid.h dmaengine: Driver support for FSL RaidEngine device. 2015-04-02 16:10:27 +05:30
fsl-edma.c dmaengine: fsl-edma: add PM suspend/resume support 2015-12-05 15:52:13 +05:30
fsldma.c dmaengine: fsldma: fix memory leak 2016-03-09 12:15:22 +05:30
fsldma.h dmaengine: fsldma: declare slave capabilities for the generic code 2015-01-13 23:58:08 +05:30
idma64.c dmaengine: idma64: clear LLP_[SD]_EN bits in last descriptor 2016-02-15 22:06:45 +05:30
idma64.h asm-generic changes for 4.6 2016-03-24 23:13:48 -07:00
img-mdc-dma.c dmaengine: mdc: Correct terminate_all handling 2015-12-18 11:12:29 +05:30
imx-dma.c dmaengine: Add an enum for the dmaengine alignment constraints 2015-08-05 10:53:52 +05:30
imx-sdma.c dmaengine: imx-sdma: remove __init annotation on sdma_event_remap 2015-11-16 09:14:25 +05:30
iop-adma.c dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc() 2016-03-09 14:57:51 +01:00
k3dma.c dmaengine: Add an enum for the dmaengine alignment constraints 2015-08-05 10:53:52 +05:30
Kconfig Merge branch 'topic/qcom' into for-linus 2016-03-14 11:18:22 +05:30
lpc18xx-dmamux.c dmaengine: add driver for lpc18xx dmamux 2015-08-18 22:12:14 +05:30
Makefile dmaengine: qcom_bam_dma: move to qcom directory 2016-03-11 07:42:06 +05:30
mic_x100_dma.c dma/mic_x100_dma: IS_ERR() vs PTR_ERR() typo 2016-03-03 21:13:01 +05:30
mic_x100_dma.h dmaengine: Add an enum for the dmaengine alignment constraints 2015-08-05 10:53:52 +05:30
mmp_pdma.c dmaengine: Add an enum for the dmaengine alignment constraints 2015-08-05 10:53:52 +05:30
mmp_tdma.c dmaengine: Add an enum for the dmaengine alignment constraints 2015-08-05 10:53:52 +05:30
moxart-dma.c dmaengine: moxart-dma: Fix module autoload for OF platform driver 2015-10-01 07:34:31 +05:30
mpc512x_dma.c dmaengine: mpc512x: Fix module autoload for OF platform driver 2015-10-01 07:34:31 +05:30
mv_xor.c dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc() 2016-03-09 14:57:51 +01:00
mv_xor.h dmaengine: mv_xor: add suspend/resume support 2016-01-06 15:42:27 +05:30
mxs-dma.c dmaengine: mxs: Constify platform_device_id 2015-05-04 16:38:55 +05:30
nbpfaxi.c dmaengine: nbpfaxi: Constify platform_device_id 2015-05-04 16:38:55 +05:30
of-dma.c dmaengine: of_dma: Support for DMA routers 2015-05-09 17:11:25 +05:30
omap-dma.c dmaengine: omap-dma: Implement device_synchronize callback 2016-02-22 08:19:02 +05:30
pch_dma.c dmaengine: Remove remaining FSF mailing addresses 2015-07-06 19:18:53 +05:30
pl330.c dmaengine: pl330: fix to support the burst mode 2016-03-01 09:11:25 +05:30
pxa_dma.c ARM: SoC platform updates for v4.6 2016-03-20 14:57:08 -07:00
s3c24xx-dma.c dmaengine: s3c24xx: Constify platform_device_id 2015-05-04 16:38:55 +05:30
sa11x0-dma.c dmaengine: sa11x0: report slave capabilities to upper layers 2015-04-17 23:24:35 +05:30
sirf-dma.c dmaengine: sirf: use __maybe_unused to hide pm functions 2016-03-04 20:31:35 +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 ste_dma40: Delete an unnecessary variable initialisation in d40_probe() 2015-12-10 09:17:10 +05:30
stm32-dma.c dmaengine: stm32-dma: Fix unchecked deference of chan->desc 2015-12-10 09:45:22 +05:30
sun4i-dma.c dmaengine: sun4i: support module autoloading 2016-03-03 21:16:35 +05:30
sun6i-dma.c dmaengine: sun6i: Fix module autoload for OF platform driver 2015-10-01 07:35:26 +05:30
tegra20-apb-dma.c dmaengine: tegra: Move of_device_id table near to its user 2016-03-04 20:36:01 +05:30
ti-dma-crossbar.c dmaengine: ti-dma-crossbar: dra7: Support for reserving DMA event ranges 2015-11-30 15:09:16 +05:30
timb_dma.c dmaengine: Remove remaining FSF mailing addresses 2015-07-06 19:18:53 +05:30
TODO dmaengine: dw: don't perform DMA when dmaengine_submit is called 2014-07-15 22:14:30 +05:30
txx9dmac.c dmaengine: txx9: Rename device_control 2014-12-22 12:33:22 +05:30
txx9dmac.h MIPS: Replace MIPS-specific 64BIT_PHYS_ADDR with generic PHYS_ADDR_T_64BIT 2014-11-24 22:46:44 +01:00
virt-dma.c dmaengine: virt-dma: don't always free descriptor upon completion 2015-11-16 08:32:16 +05:30
virt-dma.h Merge branch 'topic/async' into for-linus 2016-01-06 15:17:47 +05:30
xgene-dma.c dmaengine: xgene-dma: Fix double IRQ issue by setting IRQ_DISABLE_UNLAZY flag 2016-01-07 11:09:36 +05:30
zx296702_dma.c dmaengine updates for 4.4-rc1 2015-11-10 10:05:17 -08:00