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2020-09-18dmaengine: sirf-dma: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-25-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: sa11x0: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-24-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: qcom: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-23-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: ppc4xx: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-22-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: pl330: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-21-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: pch_dma: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-20-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: nbpfaxi: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-19-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: mxs-dma: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-18-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: mv_xor: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-17-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: mpc512x: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-16-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: mmp: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-15-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: mediatek: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-14-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: k3dma: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-13-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: ipu: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-12-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: iop_adma: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-11-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: ioat: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/20200831103542.305571-10-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: imx-dma: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-9-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: ep93xx: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-7-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: dw: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-6-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: coh901318: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-5-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: at_xdmac: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-4-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: at_hdmac: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-3-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-18dmaengine: altera-msgdma: convert tasklets to use new tasklet_setup() APIAllen Pais
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: Allen Pais <allen.lkml@gmail.com> Link: https://lore.kernel.org/r/20200831103542.305571-2-allen.lkml@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-14dmaengine: sf-pdma: remove unused 'desc'Vinod Koul
'desc' variable is now defined but not used in sf_pdma_donebh_tasklet(), causing this warning: drivers/dma/sf-pdma/sf-pdma.c: In function 'sf_pdma_donebh_tasklet': drivers/dma/sf-pdma/sf-pdma.c:287:23: warning: unused variable 'desc' [-Wunused-variable] Remove this unused variable Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: ti: k3-udma-glue: Fix parameters for rx ring pair requestPeter Ujfalusi
The original commit mixed up the forward and completion ring IDs for the rx flow configuration. Acked-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Fixes: 4927b1ab2047 ("dmaengine: ti: k3-udma: Switch to k3_ringacc_request_rings_pair") Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
2020-09-11dmaengine: Kconfig: Update description for RCAR_DMAC configLad Prabhakar
rcar-dmac driver is used on Renesas R-Car Gen{2,3} and Renesas RZ/G{1,2} SoC's, update the same to reflect the description for RCAR_DMAC config. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com> Link: https://lore.kernel.org/r/20200911095734.19348-1-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: ti: k3-udma: Use soc_device_match() for SoC dependent parametersPeter Ujfalusi
Use separate data for SoC dependent parameters. These parameters depends on the DMA integration (either in HW or in SYSFW), the DMA controller itself remains compatible with either the am654 or j721e variant. j7200 have the same DMA as j721e with different number of channels, which can be queried from HW, but SYSFW defines different rchan_oes_offset number for j7200 (0x80) compared to j721e (0x400). Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20200910124329.21206-1-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11Merge tag 'v5.9-rc4' into nextVinod Koul
Linux 5.9-rc4
2020-09-11dmaengine: dmatest: Print error codes as signed valueAndy Shevchenko
When we got an error from DMA mapping API we convert a negative value to unsigned long type and hence make user confused: result #1: 'src mapping error' with src_off=0x19a72 dst_off=0xea len=0xccf4 (18446744073709551604) Change this to print error codes as signed values. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200907101306.61824-1-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: pl330: Drop local dma_parmsRobin Murphy
Since commit f458488425f1 ("amba: Initialize dma_parms for amba devices"), struct amba_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/c9e58882e33f22f9b0a6d65a5507e24004512148.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: qcom: bam_dma: Drop local dma_parmsRobin Murphy
Since commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices"), struct platform_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/60ac2ef17e242dbf631db29ebde9d64d6df67030.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: ste_dma40: Drop local dma_parmsRobin Murphy
Since commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices"), struct platform_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/011a956183b92a258bf0922385d145ea966dcbea.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: rcar-dmac: Drop local dma_parmsRobin Murphy
Since commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices"), struct platform_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/23d40e15af10aad4724a2770ec18b4b28c1b8a71.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: mxs: Drop local dma_parmsRobin Murphy
Since commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices"), struct platform_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/dc0fb6963067b9c799873d761661ed6dce1426ec.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: imx-sdma: Drop local dma_parmsRobin Murphy
Since commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices"), struct platform_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/d9b551dcf712a91860af3c5dd01a31b9b97ac1c5.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: imx-dma: Drop local dma_parmsRobin Murphy
Since commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices"), struct platform_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/7fad3c60cac2bf4f8dab791f8b6eafae90abc960.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: bcm2835: Drop local dma_parmsRobin Murphy
Since commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices"), struct platform_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/116927330a4a66aac579ad38ddbc3b538cd9524c.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: axi-dmac: Drop local dma_parmsRobin Murphy
Since commit 9495b7e92f71 ("driver core: platform: Initialize dma_parms for platform devices"), struct platform_device already provides a dma_parms structure, so we can save allocating another one. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Link: https://lore.kernel.org/r/9b759e4c9eb37c90a3616d31abe13af6a6dafcd2.1599164692.git.robin.murphy@arm.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-11dmaengine: sf-pdma: Fix an error that calls callback twiceBrad Kim
Because a callback is called twice when DMA transfer complete the second callback may be possible to access a freed memory if the first callback routines perform the dma_release_channel function. So this patch serialized the callback functions Signed-off-by: Brad Kim <brad.kim@semifive.com> Tested-and-reviewed-by: Green Wan <green.wan@sifive.com> Signed-off-by: Brad Kim <brad.kim@sifive.com> Link: https://lore.kernel.org/r/20200903111726.3413-1-brad.kim@sifive.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-04Merge tag 'dmaengine-fix-5.9-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine Pull dmaengine fixes from Vinod Koul: "A couple of core fixes and odd driver fixes for dmaengine subsystem: Core: - drop ACPI CSRT table reference after using it - fix of_dma_router_xlate() error handling Drivers fixes in idxd, at_hdmac, pl330, dw-edma and jz478" * tag 'dmaengine-fix-5.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: dmaengine: ti: k3-udma: Update rchan_oes_offset for am654 SYSFW ABI 3.0 drivers/dma/dma-jz4780: Fix race condition between probe and irq handler dmaengine: dw-edma: Fix scatter-gather address calculation dmaengine: ti: k3-udma: Fix the TR initialization for prep_slave_sg dmaengine: pl330: Fix burst length if burst size is smaller than bus width dmaengine: at_hdmac: add missing kfree() call in at_dma_xlate() dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate() dmaengine: at_hdmac: check return value of of_find_device_by_node() in at_dma_xlate() dmaengine: of-dma: Fix of_dma_router_xlate's of_dma_xlate handling dmaengine: idxd: reset states after device disable or reset dmaengine: acpi: Put the CSRT table after using it
2020-09-03dmaengine: ti: k3-udma: Update rchan_oes_offset for am654 SYSFW ABI 3.0Peter Ujfalusi
SYSFW ABI 3.0 has changed the rchan_oes_offset value for am654 to support SR2. Since the kernel now needs SYSFW API 3.0 to work because the merged irqchip update, we need to also update the am654 rchan_oes_offset. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Link: https://lore.kernel.org/r/20200831091019.25273-1-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-03dmaengine: idxd: add command status to idxd sysfs attributeDave Jiang
Export admin command status to sysfs attribute in order to allow user to retrieve configuration error. Allows user tooling to retrieve the command error and provide more user friendly error messages. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/159865278770.29455.8026892329182750127.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-03dmaengine: idxd: add support for configurable max wq batch sizeDave Jiang
Add sysfs attribute max_batch_size to wq in order to allow the max batch size configured on a per wq basis. Add support code to configure the valid user input on wq enable. This is a performance tuning parameter. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/159865273617.29141.4383066301730821749.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-03dmaengine: idxd: add support for configurable max wq xfer sizeDave Jiang
Add sysfs attribute max_xfer_size to wq in order to allow the max xfer size configured on a per wq basis. Add support code to configure the valid user input on wq enable. This is a performance tuning parameter. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/159865265404.29141.3049399618578194052.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-03dmaengine: xilinx: Simplify with dev_err_probe()Krzysztof Kozlowski
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and the error value gets printed. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200828152637.16903-3-krzk@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-03dmaengine: stm32: Simplify with dev_err_probe()Krzysztof Kozlowski
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and the error value gets printed. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200828152637.16903-2-krzk@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-03dmaengine: pl330: Simplify with dev_err_probe()Krzysztof Kozlowski
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and the error value gets printed. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200828152637.16903-1-krzk@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-03dmaengine: Save few bytes and increase readability of dma_request_chan()Andy Shevchenko
Split IS_ERR_OR_NULL() check followed by additional conditional to two simple conditionals. This increases readability and saves memory: Function old new delta dma_request_chan 700 697 -3 Total: Before=10224, After=10221, chg -0.03% Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200828144519.14483-1-andriy.shevchenko@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-09-03dmaengine: Mark dma_request_slave_channel() deprecatedPeter Ujfalusi
New drivers should use dma_request_chan() instead dma_request_slave_channel() dma_request_slave_channel() is a simple wrapper for dma_request_chan() eating up the error code for channel request failure and makes deferred probing impossible. Move the dma_request_slave_channel() into the header as inline function, mark it as deprecated. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200828110507.22407-1-peter.ujfalusi@ti.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-08-29fsldma: fix very broken 32-bit ppc ioread64 functionalityLinus Torvalds
Commit ef91bb196b0d ("kernel.h: Silence sparse warning in lower_32_bits") caused new warnings to show in the fsldma driver, but that commit was not to blame: it only exposed some very incorrect code that tried to take the low 32 bits of an address. That made no sense for multiple reasons, the most notable one being that that code was intentionally limited to only 32-bit ppc builds, so "only low 32 bits of an address" was completely nonsensical. There were no high bits to mask off to begin with. But even more importantly fropm a correctness standpoint, turning the address into an integer then caused the subsequent address arithmetic to be completely wrong too, and the "+1" actually incremented the address by one, rather than by four. Which again was incorrect, since the code was reading two 32-bit values and trying to make a 64-bit end result of it all. Surprisingly, the iowrite64() did not suffer from the same odd and incorrect model. This code has never worked, but it's questionable whether anybody cared: of the two users that actually read the 64-bit value (by way of some C preprocessor hackery and eventually the 'get_cdar()' inline function), one of them explicitly ignored the value, and the other one might just happen to work despite the incorrect value being read. This patch at least makes it not fail the build any more, and makes the logic superficially sane. Whether it makes any difference to the code _working_ or not shall remain a mystery. Compile-tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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