AuxXxilium/linux_dsm_epyc7002
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d702419134
linux_dsm_epyc7002/drivers/dma
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Grygorii Strashko d702419134 dmaengine: ti: k3-udma: Add glue layer for non DMAengine users 
Certain users can not use right now the DMAengine API due to missing
features in the core. Prime example is Networking.

These users can use the glue layer interface to avoid misuse of DMAengine
API and when the core gains the needed features they can be converted to
use generic API.

The most prominent features the glue layer clients are depending on:

- most PSI-L native peripheral use extra rflow ranges on a receive channel
   and depending on the peripheral's configuration packets from a single
   free descriptor ring is going to be received to different receive ring
  - it is also possible to have different free descriptor rings per rflow
    and an rflow can also support 4 additional free descriptor ring based
    on the size of the incoming packet
- out of order completion of descriptors on a channel
 - when we have several queues to handle different priority packets the
   descriptors will be completed 'out-of-order'
- the notion of prep_slave_sg is not matching with what the streaming type
   of operation is demanding for networking
- Streaming type of operation
 - Ability to fill the free descriptor ring with descriptors in
   anticipation of incoming traffic and when a packet arrives UDMAP will
   form a packet and gives it to the client driver
 - the descriptors are not backed with exact size data buffers as we don't
   know the size of the packet we will receive, but as a generic pool of
   buffers to be used by the receive channel
- NAPI type of operation (polling instead of interrupt driven transfer)
 - without this we can not sustain gigabit speeds and we need to support NAPI
 - not to limit this to networking, but other high performance operations

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Link: https://lore.kernel.org/r/20191223110458.30766-12-peter.ujfalusi@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-01-21 11:06:12 +05:30
..
bestcomm treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
dw dmaengine: dw: platform: Mark 'hclk' clock optional 2019-10-14 13:51:44 +05:30
dw-axi-dmac dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
dw-edma dmaengine: dw-edma: fix endianess confusion 2019-07-22 20:58:15 +05:30
fsl-dpaa2-qdma dmaengine: fsl-dpaa2-qdma: Remove unnecessary local variables in DPDMAI_CMD_CREATE macro 2019-11-02 22:03:01 +05:30
hsu dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
ioat dmaengine: ioat: Support in-use unbind 2019-12-24 10:18:37 +05:30
ipu treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
mediatek dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
ppc4xx treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7 2019-05-21 11:28:40 +02:00
qcom dmaengine: qcom: bam_dma: Fix resource leak 2019-10-18 13:27:58 +05:30
sf-pdma dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
sh dmaengine: rcar-dmac: Add dma-channel-mask property support 2019-10-14 12:26:58 +05:30
ti dmaengine: ti: k3-udma: Add glue layer for non DMAengine users 2020-01-21 11:06:12 +05:30
xilinx Merge branch 'fixes' into next 2019-11-14 16:02:51 +05:30
acpi-dma.c dmaengine: acpi: Add kernel doc parameter descriptions 2019-08-21 09:41:27 +05:30
altera-msgdma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
amba-pl08x.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
at_hdmac_regs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
at_hdmac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
at_xdmac.c dmaengine: at_xdmac: Use devm_platform_ioremap_resource() in at_xdmac_probe() 2019-10-14 13:21:20 +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: no need to check return value of debugfs_create functions 2019-06-14 11:14:58 +05:30
coh901318_lli.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
coh901318.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
coh901318.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
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: JZ4780: Add support for the X1830. 2019-12-23 13:12:49 +05:30
dmaengine.c dmaengine: Add metadata_ops for dma_async_tx_descriptor 2020-01-21 11:06:12 +05:30
dmaengine.h dmaengine: Add support for reporting DMA cached data amount 2020-01-21 11:06:12 +05:30
dmatest.c dmaengine: dmatest: Add support for completion polling 2019-09-04 10:14:22 +05:30
ep93xx_dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
fsl_raid.c dmaengine: fsl_raid: make of_device_ids const. 2017-06-29 09:25:28 +05:30
fsl_raid.h dmaengine: Driver support for FSL RaidEngine device. 2015-04-02 16:10:27 +05:30
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: Handle invalid qdma-queue0 IRQ 2019-11-02 21:55:19 +05:30
fsldma.c dmaengine: fsldma: Mark expected switch fall-through 2019-08-20 19:42:34 -05:00
fsldma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 40 2019-05-24 17:27:12 +02:00
idma64.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
idma64.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
img-mdc-dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422 2019-06-05 17:37:15 +02:00
imx-dma.c dmaengine: imx-dma: Mark expected switch fall-through 2019-07-31 20:49:04 +05:30
imx-sdma.c dmaengine: imx-sdma: Fix memory leak 2019-12-26 10:04:19 +05:30
iop-adma.c dmaengine: iop-adma: clean up an indentation issue 2019-11-14 10:27:37 +05:30
iop-adma.h dma: iop-adma: allow building without platform headers 2019-08-14 15:36:22 +02:00
k3dma.c dmaengine: k3dma: Use devm_platform_ioremap_resource() in k3_dma_probe() 2019-10-14 13:21:20 +05:30
Kconfig dmaengine: plx-dma: Introduce PLX DMA engine PCI driver skeleton 2020-01-15 19:40:51 +05:30
lpc18xx-dmamux.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
Makefile dmaengine: plx-dma: Introduce PLX DMA engine PCI driver skeleton 2020-01-15 19:40:51 +05:30
mcf-edma.c dmaengine: fsl-edma: add drvdata for fsl-edma 2019-07-03 13:28:22 +05:30
mic_x100_dma.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
mic_x100_dma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 290 2019-06-05 17:36:38 +02:00
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: add missed of_dma_controller_free 2019-11-22 10:51:30 +05:30
mmp_tdma.c dmaengine: mmp_tdma: add missed of_dma_controller_free 2019-11-22 10:51:29 +05:30
moxart-dma.c treewide: Use struct_size() for kmalloc()-family 2018-06-06 11:15:43 -07:00
mpc512x_dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 7 2019-05-21 11:28:40 +02:00
mv_xor_v2.c dmaengine: mv_xor_v2: Fix -Wshift-negative-value 2019-08-20 17:06:36 +05:30
mv_xor.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
mv_xor.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
mxs-dma.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
nbpfaxi.c dmaengine: nbpfaxi: Use dev_get_drvdata() 2019-04-29 10:47:15 +05:30
of-dma.c dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
owl-dma.c dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
pch_dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
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 dmaengine updates for v5.3-rc1 2019-07-17 09:55:43 -07:00
s3c24xx-dma.c dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
sa11x0-dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sirf-dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4 2019-05-21 11:28:40 +02:00
sprd-dma.c dmaengine: sprd: Add wrap address support for link-list mode 2019-11-14 16:03:35 +05:30
st_fdma.c dmaengine: Remove dev_err() usage after platform_get_irq() 2019-07-31 20:50:53 +05:30
st_fdma.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ste_dma40_ll.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
ste_dma40_ll.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194 2019-05-30 11:29:22 -07:00
ste_dma40.c dmaengine: ste_dma40: fix unneeded variable warning 2019-07-22 20:58:33 +05:30
stm32-dma.c dmaengine: stm32-dma: Use struct_size() helper 2019-09-04 10:25:08 +05:30
stm32-dmamux.c dmaengine: stm32-dmamux: Switch to use device_property_count_u32() 2019-07-29 12:25:21 +05:30
stm32-mdma.c dmaengine updates for v5.4-rc1 2019-09-17 19:04:40 -07:00
sun4i-dma.c dmaengine: virt-dma: Add missing locking 2019-12-26 10:04:18 +05:30
sun6i-dma.c dmaengine: Remove dev_err() usage after platform_get_irq() 2019-07-31 20:50:53 +05:30
tegra20-apb-dma.c dmaengine: tegra-apb: Support per-burst residue granularity 2019-07-25 15:55:51 +05:30
tegra210-adma.c dmaengine: tegra210-adma: fix transfer failure 2019-10-14 12:40:38 +05:30
timb_dma.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
TODO dmaengine: dw: don't perform DMA when dmaengine_submit is called 2014-07-15 22:14:30 +05:30
txx9dmac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
txx9dmac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
uniphier-mdmac.c dmaengine: uniphier-mdmac: use devm_platform_ioremap_resource() 2019-10-11 15:45:41 +05:30
virt-dma.c dmaengine: virt-dma: use vchan_vdesc_fini() to free descriptors 2019-12-26 10:04:18 +05:30
virt-dma.h dmaengine: virt-dma: Add missing locking around list operations 2019-12-26 10:04:18 +05:30
xgene-dma.c dmaengine: Remove dev_err() usage after platform_get_irq() 2019-07-31 20:50:53 +05:30
zx_dma.c dmaengine: zx: remove: removed dmam_pool_destroy 2019-11-14 12:16:53 +05:30