AuxXxilium/linux_dsm_epyc7002
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47ec7f09bc
linux_dsm_epyc7002/drivers/dma
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Dave Jiang 47ec7f09bc dmaengine: cookie bypass for out of order completion 
The cookie tracking in dmaengine expects all submissions completed in
order. Some DMA devices like Intel DSA can complete submissions out of
order, especially if configured with a work queue sharing multiple DMA
engines. Add a status DMA_OUT_OF_ORDER that tx_status can be returned for
those DMA devices. The user should use callbacks to track the completion
rather than the DMA cookie. This would address the issue of dmatest
complaining that descriptors are "busy" when the cookie count goes
backwards due to out of order completion. Add DMA_COMPLETION_NO_ORDER
DMA capability to allow the driver to flag the device's ability to complete
operations out of order.

Reported-by: Swathi Kovvuri <swathi.kovvuri@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Tested-by: Swathi Kovvuri <swathi.kovvuri@intel.com>
Link: https://lore.kernel.org/r/158939557151.20335.12404113976045569870.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-06-17 19:45:14 +05:30
..
bestcomm
dw dmaengine: dw: Replace 'objs' by 'y' 2020-06-16 21:54:47 +05:30
dw-axi-dmac dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
dw-edma dmaengine: dw-edma: support local dma device transfer semantics 2020-05-04 14:24:27 +05:30
fsl-dpaa2-qdma dmaengine: fsl-dpaa2-qdma: remove set but not used variable 'dpaa2_qdma' 2020-03-06 19:04:55 +05:30
hsu
idxd dmaengine: cookie bypass for out of order completion 2020-06-17 19:45:14 +05:30
ioat dmaengine: ioat: adding missed issue_pending to timeout handler 2020-04-23 12:51:45 +05:30
ipu
mediatek treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
ppc4xx dmaengine: ppc4xx: Use scnprintf() for avoiding potential buffer overflow 2020-03-11 15:10:45 +05:30
qcom treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
sf-pdma dmaengine: sf-pdma: Simplify the error handling path in 'sf_pdma_probe()' 2020-05-13 17:07:50 +05:30
sh dmaengine: fix spelling mistake "exceds" -> "exceeds" 2020-03-23 11:39:49 +05:30
ti dmaengine updates for v5.8-rc1 2020-06-10 11:03:04 -07:00
xilinx dmaengine: zynqmp_dma: Move list_del inside zynqmp_dma_free_descriptor. 2020-05-15 11:21:11 +05:30
acpi-dma.c
altera-msgdma.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
amba-pl08x.c
at_hdmac_regs.h dmaengine: at_hdmac: Replace zero-length array with flexible-array 2020-05-13 20:25:16 +05:30
at_hdmac.c dmaengine: at_hdmac: Fix deadlocks 2020-02-25 11:27:27 +05:30
at_xdmac.c dmaengine: at_xdmac: Replace zero-length array with flexible-array 2020-05-13 20:25:41 +05:30
bcm2835-dma.c dmaengine: bcm2835: do not call vchan_vdesc_fini() with lock held 2019-12-26 10:04:18 +05:30
bcm-sba-raid.c dmaengine: bcm-sba-raid: Replace zero-length array with flexible-array member 2020-02-13 20:15:35 +05:30
coh901318_lli.c
coh901318.c dmaengine: coh901318: Fix a double lock bug in dma_tc_handle() 2020-02-24 21:59:45 +05:30
coh901318.h
dma-axi-dmac.c dmaengine: axi-dmac: add a check for devm_regmap_init_mmio 2019-12-11 16:11:50 +05:30
dma-jz4780.c dmaengine updates for v5.6-rc1 2020-01-27 10:55:50 -08:00
dmaengine.c dmaengine updates for v5.8-rc1 2020-06-10 11:03:04 -07:00
dmaengine.h dmaengine: Create debug directories for DMA devices 2020-03-11 14:56:14 +05:30
dmatest.c dmaengine: cookie bypass for out of order completion 2020-06-17 19:45:14 +05:30
ep93xx_dma.c
fsl_raid.c
fsl_raid.h
fsl-edma-common.c dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platform 2019-12-18 11:55:46 +05:30
fsl-edma-common.h dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platform 2019-12-18 11:55:46 +05:30
fsl-edma.c dmaengine: fsl-edma: Add eDMA support for QorIQ LS1028A platform 2019-12-18 11:55:46 +05:30
fsl-qdma.c dmaengine: fsl-qdma: fix duplicated argument to && 2020-01-21 13:15:37 +05:30
fsldma.c
fsldma.h
hisi_dma.c dmaengine: hisilicon: Add Kunpeng DMA engine support 2020-01-24 11:18:45 +05:30
idma64.c
idma64.h
img-mdc-dma.c
imx-dma.c
imx-sdma.c dmaengine: imx-sdma: initialize all script addresses 2020-05-15 12:31:06 +05:30
iop-adma.c dmaengine: iop-adma: clean up an indentation issue 2019-11-14 10:27:37 +05:30
iop-adma.h
k3dma.c dmaengine: k3dma: Avoid null pointer traversal 2019-12-23 13:21:14 +05:30
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
lpc18xx-dmamux.c
Makefile dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver 2020-03-02 14:54:34 +05:30
mcf-edma.c
mic_x100_dma.c
mic_x100_dma.h
milbeaut-hdmac.c dmaengine: milbeaut-hdmac: remove redundant error log 2019-11-08 09:26:17 +05:30
milbeaut-xdmac.c dmaengine: milbeaut-xdmac: remove redundant error log 2019-11-08 09:26:17 +05:30
mmp_pdma.c dmaengine: mmp_pdma: Do not warn when IRQ is shared by all chans 2020-06-16 21:58:59 +05:30
mmp_tdma.c dmaengine: mmp_tdma: share the IRQ line 2020-06-16 21:59:01 +05:30
moxart-dma.c dmaengine: moxart-dma: Drop pointless static qualifier in moxart_probe() 2020-05-13 17:33:17 +05:30
mpc512x_dma.c
mv_xor_v2.c treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
mv_xor.c
mv_xor.h
mxs-dma.c
nbpfaxi.c
of-dma.c dmaengine: Move dma_get_{,any_}slave_channel() to private dmaengine.h 2020-01-21 15:05:29 +05:30
owl-dma.c dmaengine: owl: Use correct lock in owl_dma_get_pchan() 2020-05-04 14:25:06 +05:30
pch_dma.c dmaengine: pch_dma.c: Avoid data race between probe and irq handler 2020-04-23 11:47:16 +05:30
pl330.c dmaengine: pl330: Convert to the *_late and *_early system sleep callbacks 2019-12-10 11:39:04 +05:30
plx_dma.c dmaengine: plx-dma: Implement descriptor submission 2020-01-15 19:40:51 +05:30
pxa_dma.c
s3c24xx-dma.c dmaengine: s3c24xx-dma: fix spelling mistake "to" -> "too" 2020-01-23 17:03:25 +05:30
sa11x0-dma.c dmaengine: sa11x0: Replace zero-length array with flexible-array member 2020-02-19 17:48:40 +05:30
sirf-dma.c
sprd-dma.c dmaengine: sprd: Set request pending flag when DMA controller is active 2020-03-23 11:38:24 +05:30
st_fdma.c
st_fdma.h
ste_dma40_ll.c
ste_dma40_ll.h
ste_dma40.c
stm32-dma.c dmaengine: stm32-dma: direct mode support through device tree 2020-04-27 21:40:12 +05:30
stm32-dmamux.c dmaengine: stm32-dmamux: driver defers probe for clock and reset 2020-02-24 22:22:44 +05:30
stm32-mdma.c dmaengine: stm32-mdma: use vchan_terminate_vdesc() in .terminate_all 2020-02-24 22:20:01 +05:30
sun4i-dma.c dmaengine: sun4i: set the linear_mode properly 2020-02-17 12:21:08 +05:30
sun6i-dma.c
tegra20-apb-dma.c dmaengine: tegra-apb: Ensure that clock is enabled during of DMA synchronization 2020-04-27 21:35:35 +05:30
tegra210-adma.c dmaengine: tegra210-adma: Fix an error handling path in 'tegra_adma_probe()' 2020-05-19 22:26:01 +05:30
timb_dma.c
TODO
txx9dmac.c
txx9dmac.h
uniphier-mdmac.c dmaengine: uniphier-mdmac: replace zero-length array with flexible-array member 2020-02-13 20:15:57 +05:30
uniphier-xdmac.c dmaengine: uniphier-xdmac: Remove redandant error log for platform_get_irq 2020-03-26 12:22:56 +05:30
virt-dma.c dmaengine updates for v5.6-rc1 2020-01-27 10:55:50 -08:00
virt-dma.h dmaengine: virt-dma: Add missing locking around list operations 2019-12-26 10:04:18 +05:30
xgene-dma.c
zx_dma.c dmaengine: zx: remove: removed dmam_pool_destroy 2019-11-14 12:16:53 +05:30