AuxXxilium/linux_dsm_epyc7002
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85f57752b3
linux_dsm_epyc7002/drivers/dma
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Nandor Han 85f57752b3 dmaengine: imx-sdma - correct the dma transfer residue calculation 
The residue calculation was taking in consideration that dma
transaction status will be always retrieved in the dma callback
used to inform that dma transfer is complete. However this is not
the case for all subsystems that use dma. Some subsystems use a
timer to check the dma status periodically.

Therefore the calculation was updated and residue is calculated
accordingly by a) update the residue calculation taking in
consideration the last used buffer index by using *buf_ptail* variable
and b) chn_real_count (number of bytes transferred) is initialized to
zero, when dma channel is created, to avoid using an uninitialized
value in residue calculation when dma status is checked without
waiting dma complete event.

Signed-off-by: Nandor Han <nandor.han@ge.com>
Acked-by: Peter Senna Tschudin <peter.senna@collabora.com>
Tested-by: Peter Senna Tschudin <peter.senna@collabora.com>
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-25 11:05:14 +05:30
..
bestcomm dmaengine: NO_IRQ removal from powerpc-only drivers 2016-09-14 18:57:38 +05:30
dw dmaengine updates for 4.8-rc1 2016-10-06 17:13:54 -07:00
hsu dmaengine: hsu: refactor hsu_dma_do_irq() to return int 2016-09-15 21:15:40 +05:30
ioat Merge branch 'topic/ioatdma' into for-linus 2016-10-03 09:18:01 +05:30
ipu Merge branch 'topic/no_irq' into for-linus 2016-10-03 09:18:29 +05:30
ppc4xx Merge branch 'topic/unmap_cleanup' into for-linus 2016-10-03 09:36:11 +05:30
qcom dmaengine: qcom_hidma: add error reporting for tx_status 2016-08-31 21:27:32 +05:30
sh dmaengine updates for 4.8-rc1 2016-10-06 17:13:54 -07:00
xilinx dmengine: xilinx_dma: convert callback to helper function 2016-08-08 08:11:43 +05:30
acpi-dma.c
amba-pl08x.c dmaengine: Remove site specific OOM error messages on kzalloc 2016-06-21 21:35:00 +05:30
at_hdmac_regs.h
at_hdmac.c dmaengine: at_hdmac: convert callback to helper function 2016-08-08 08:11:38 +05:30
at_xdmac.c dmaengine updates for 4.8-rc1 2016-10-06 17:13:54 -07:00
bcm2835-dma.c dmaengine: bcm2835: fix 64-bit warning 2016-07-06 22:39:43 +05:30
coh901318_lli.c dmaengine: coh901318: use NULL for pointer initialization 2016-09-26 22:28:24 +05:30
coh901318.c Merge branch 'topic/err_reporting' into for-linus 2016-10-03 09:17:33 +05:30
coh901318.h
cppi41.c Merge branch 'topic/err_reporting' into for-linus 2016-10-03 09:17:33 +05:30
dma-axi-dmac.c dmaengine: axi-dmac: Return IRQ_NONE if no IRQs are pending 2016-07-01 22:56:41 +05:30
dma-jz4740.c dmaengine: jz4740: remove unused arch header 2016-09-26 22:25:57 +05:30
dma-jz4780.c Merge branch 'topic/compile_test' into for-linus 2016-10-03 09:16:03 +05:30
dmaengine.c dmaengine: device must have at least one channel 2016-08-22 11:49:07 +05:30
dmaengine.h dmaengine: add support to provide error result from a DMA transation 2016-08-08 08:11:42 +05:30
dmatest.c dmaengine: dmatest: Restore "memcpy" as default mode 2016-09-15 21:17:58 +05:30
edma.c Merge branch 'topic/compile_test' into for-linus 2016-10-03 09:16:03 +05:30
ep93xx_dma.c Merge branch 'topic/err_reporting' into for-linus 2016-10-03 09:17:33 +05:30
fsl_raid.c dmaengine: fsl_raid: Fix module autoload 2016-11-14 08:35:13 +05:30
fsl_raid.h
fsl-edma.c dmaengine: fsl-edma: kill the tasklets upon exit 2016-07-16 20:19:00 +05:30
fsldma.c Merge branch 'topic/unmap_cleanup' into for-linus 2016-10-03 09:36:11 +05:30
fsldma.h
idma64.c
idma64.h
img-mdc-dma.c dmaengine: img-mdc: fix a possible NULL dereference 2016-08-22 11:57:49 +05:30
imx-dma.c dmaengine: imx-dma: convert callback to helper function 2016-08-08 08:11:39 +05:30
imx-sdma.c dmaengine: imx-sdma - correct the dma transfer residue calculation 2016-11-25 11:05:14 +05:30
iop-adma.c dmaengine: iop-adma: convert callback to helper function 2016-08-08 08:11:39 +05:30
k3dma.c dmaengine: k3dma: use correct format string for debug output 2016-09-07 13:38:43 +05:30
Kconfig dmaengine: tegra210-adma: convert TEGRA210_ADMA from bool to tristate 2016-11-14 09:10:39 +05:30
lpc18xx-dmamux.c
Makefile dmaengine: mv_xor_v2: new driver 2016-07-12 10:09:53 +05:30
mic_x100_dma.c dmaengine: mic_x100_dma: convert callback to helper function 2016-08-08 08:11:39 +05:30
mic_x100_dma.h
mmp_pdma.c dmaengine: mmp_pdma: convert callback to helper function 2016-08-08 08:11:39 +05:30
mmp_tdma.c Merge branch 'topic/err_reporting' into for-linus 2016-10-03 09:17:33 +05:30
moxart-dma.c dmaengine: moxart: remove NO_IRQ 2016-09-05 16:40:52 +05:30
mpc512x_dma.c Merge branch 'topic/err_reporting' into for-linus 2016-10-03 09:17:33 +05:30
mv_xor_v2.c dmaengine: mv_xor_v2: remove trailing whitespace 2016-07-12 10:10:00 +05:30
mv_xor.c Merge branch 'topic/unmap_cleanup' into for-linus 2016-10-03 09:36:11 +05:30
mv_xor.h dmaengine: mv_xor: Add support for IO (PCIe) src/dst areas 2016-09-15 21:13:59 +05:30
mxs-dma.c Merge branch 'topic/no_irq' into for-linus 2016-10-03 09:18:29 +05:30
nbpfaxi.c dmaengine: nbpfaxi: add optional max-burst property for memory reads/writes 2016-11-14 10:07:58 +05:30
of-dma.c dmaengine: of_dma: approximate an average distribution 2016-05-14 13:34:10 +05:30
omap-dma.c dmaengine: omap-dma: Enable burst and data pack for SG 2016-10-01 11:35:27 +05:30
pch_dma.c dmaengine: pch_dma: convert callback to helper function 2016-08-08 08:11:40 +05:30
pl330.c dmaengine: pl330: Handle xferred count if DMAMOV hasn't finished 2016-11-14 10:30:06 +05:30
pxa_dma.c dmaengine: pxa_dma: fix debug message 2016-08-19 16:17:26 +05:30
s3c24xx-dma.c Merge branch 'topic/compile_test' into for-linus 2016-10-03 09:16:03 +05:30
sa11x0-dma.c dmaengine: sa11x0: use correct print specifiers for size_t 2016-09-26 22:29:26 +05:30
sirf-dma.c Merge branch 'topic/no_irq' into for-linus 2016-10-03 09:18:29 +05:30
ste_dma40_ll.c dmaengine: ste_dma40_ll: make d40_width_to_bits static 2016-06-08 08:59:55 +05:30
ste_dma40_ll.h
ste_dma40.c Merge branch 'topic/ste_dma40' into for-linus 2016-10-03 09:35:55 +05:30
stm32-dma.c dmaengine: stm32-dma: make stm32_dma_set_config static 2016-09-26 22:31:36 +05:30
sun4i-dma.c remove lots of IS_ERR_VALUE abuses 2016-05-27 15:26:11 -07:00
sun6i-dma.c dmaengine: sun6i: Add support for Allwinner A83T (sun8i) variant 2016-09-26 23:15:06 +05:30
tegra20-apb-dma.c dmaengine: tegra20-apb-dma: convert callback to helper function 2016-08-08 08:11:41 +05:30
tegra210-adma.c dmaengine: tegra210-adma: Update driver to use of_pm_clk_add_clk 2016-08-22 11:55:05 +05:30
ti-dma-crossbar.c dmaengine: ti-dma-crossbar: Fix of_device_id data parameter usage 2016-09-28 08:54:28 +05:30
timb_dma.c dmaengine: timb_dma: convert callback to helper function 2016-08-08 08:11:41 +05:30
TODO
txx9dmac.c dmaengine: txx9dmac: convert callback to helper function 2016-08-08 08:11:41 +05:30
txx9dmac.h
virt-dma.c dmaengine: virt-dma: convert callback to helper function 2016-08-08 08:11:41 +05:30
virt-dma.h dmaengine: virt-dma: move function declarations 2016-10-01 11:41:39 +05:30
xgene-dma.c dmaengine: xgene-dma: move unmap to before callback 2016-08-08 08:11:43 +05:30
zx296702_dma.c