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2016-12-25ktime: Cleanup ktime_set() usageThomas Gleixner1-2/+2
ktime_set(S,N) was required for the timespec storage type and is still useful for situations where a Seconds and Nanoseconds part of a time value needs to be converted. For anything where the Seconds argument is 0, this is pointless and can be replaced with a simple assignment. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org>
2016-12-14Merge tag 'dmaengine-4.10-rc1' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds34-284/+777
Pull dmaengine updates from Vinod Koul: "Fairly routine update this time around with all changes specific to drivers: - New driver for STMicroelectronics FDMA - Memory-to-memory transfers on dw dmac - Support for slave maps on pl08x devices - Bunch of driver fixes to use dma_pool_zalloc - Bunch of compile and warning fixes spread across drivers" [ The ST FDMA driver already came in earlier through the remoteproc tree ] * tag 'dmaengine-4.10-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (68 commits) dmaengine: sirf-dma: remove unused ‘sdesc’ dmaengine: pl330: remove unused ‘regs’ dmaengine: s3c24xx: remove unused ‘cdata’ dmaengine: stm32-dma: remove unused ‘src_addr’ dmaengine: stm32-dma: remove unused ‘dst_addr’ dmaengine: stm32-dma: remove unused ‘sfcr’ dmaengine: pch_dma: remove unused ‘cookie’ dmaengine: mic_x100_dma: remove unused ‘data’ dmaengine: img-mdc: remove unused ‘prev_phys’ dmaengine: usb-dmac: remove unused ‘uchan’ dmaengine: ioat: remove unused ‘res’ dmaengine: ioat: remove unused ‘ioat_dma’ dmaengine: ioat: remove unused ‘is_raid_device’ dmaengine: pl330: do not generate unaligned access dmaengine: k3dma: move to dma_pool_zalloc dmaengine: at_hdmac: move to dma_pool_zalloc dmaengine: at_xdmac: don't restore unsaved status dmaengine: ioat: set error code on failures dmaengine: ioat: set error code on failures dmaengine: DW DMAC: add multi-block property to device tree ...
2016-12-14Merge branch 'topic/st_fdma' into for-linusVinod Koul4-0/+1153
2016-12-14Merge branch 'topic/s3c64xx' into for-linusVinod Koul1-0/+11
2016-12-14Merge branch 'topic/qcom' into for-linusVinod Koul5-103/+270
2016-12-14Merge branch 'topic/pxa' into for-linusVinod Koul1-28/+0
2016-12-14Merge branch 'topic/omap' into for-linusVinod Koul2-37/+153
2016-12-14Merge branch 'topic/ioat' into for-linusVinod Koul2-11/+18
2016-12-13Merge tag 'rproc-v4.10' of git://github.com/andersson/remoteprocLinus Torvalds4-0/+1153
Pull remoteproc updates from Bjorn Andersson: - introduce remoteproc "subdevice" support, which allows remoteproc driver to associate devices to the "running" state of the remoteproc, allowing devices to be probed and removed as the remote processor is booted, shut down or recovering from a crash. - handling of virtio device resources was improved, vring memory is now allocated as part of other memory allocation. This ensures that all vrings for all virtio devices are allocated before we boot the remote processor. - the debugfs mechanism for starting and stopping remoteproc instances was replaced with a sysfs interface, also providing a mechanism for specifying firmware to use by the instance. This allows user space to load and boot use case specific firmware on remote processors. - new drivers for the ST Slimcore and Qualcomm Hexagon DSP as well as removal of the unused StE modem loader. - finally support for crash recovery in the Qualcomm Wirelss subsystem (used for WiFi/BT/FM on a number of platforms) and a number of bug fixes and cleanups * tag 'rproc-v4.10' of git://github.com/andersson/remoteproc: (49 commits) remoteproc: qcom_adsp_pil: select qcom_scm remoteproc: Drop wait in __rproc_boot() remoteproc/ste: Delete unused driver remoteproc: Remove "experimental" warning remoteproc: qcom_adsp_pil: select qcom_scm dt-binding: soc: qcom: smd: Add label property remoteproc: qcom: mdt_loader: add include for sizes remoteproc: Update last rproc_put users to rproc_free remoteproc: qcom: adsp: Add missing MODULE_DEVICE_TABLE remoteproc: wcnss-pil: add QCOM_SMD dependency dmaengine: st_fdma: Revert: "Revert: Update st_fdma to 'depends on REMOTEPROC'" remoteproc: Add support for xo clock remoteproc: adsp-pil: fix recursive dependency remoteproc: Introduce Qualcomm ADSP PIL dt-binding: remoteproc: Introduce ADSP loader binding remoteproc: qcom_wcnss: Fix circular module dependency remoteproc: Merge table_ptr and cached_table pointers remoteproc: Remove custom vdev handler list remoteproc: Update max_notifyid as we allocate vrings remoteproc: Decouple vdev resources and devices ...
2016-12-12Merge branch 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-2/+0
Pull x86 idle updates from Ingo Molnar: "There were two bigger changes in this development cycle: - remove idle notifiers: 32 files changed, 74 insertions(+), 803 deletions(-) These notifiers were of questionable value and the main usecase, the i7300 driver, was essentially unmaintained and can be removed, plus modern power management concepts don't need the callback - so use this golden opportunity and get rid of this opaque and fragile callback from a latency sensitive code path. (Len Brown, Thomas Gleixner) - improve the AMD Erratum 400 workaround that used high overhead MSR polling in the idle loop (Borisla Petkov, Thomas Gleixner)" * 'x86-idle-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Remove empty idle.h header x86/amd: Simplify AMD E400 aware idle routine x86/amd: Check for the C1E bug post ACPI subsystem init x86/bugs: Separate AMD E400 erratum and C1E bug x86/cpufeature: Provide helper to set bugs bits x86/idle: Remove enter_idle(), exit_idle() x86: Remove x86_test_and_clear_bit_percpu() x86/idle: Remove is_idle flag x86/idle: Remove idle_notifier i7300_idle: Remove this driver
2016-12-12dmaengine: sirf-dma: remove unused ‘sdesc’Vinod Koul1-4/+0
In sirfsoc_dma_pm_suspend(), variable ‘sdesc’ is initialized but never used, which leads to warning with W=1. drivers/dma/sirf-dma.c: In function 'sirfsoc_dma_pm_suspend': drivers/dma/sirf-dma.c:1014:27: warning: variable 'sdesc' set but not used [-Wunused-but-set-variable] So remove it. Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: pl330: remove unused ‘regs’Vinod Koul1-3/+0
In pl330_add(), variable ‘regs’ is initialized but never used, which leads to warning with W=1. drivers/dma/pl330.c: In function 'pl330_add': drivers/dma/pl330.c:1891:16: warning: variable 'regs' set but not used [-Wunused-but-set-variable] So remove it. Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: s3c24xx: remove unused ‘cdata’Vinod Koul1-5/+0
In s3c24xx_dma_get_phy(), variable ‘cdata’ is initialized but never used, which leads to warning with W=1. Removing this make pdata unused. drivers/dma/s3c24xx-dma.c: In function ‘s3c24xx_dma_get_phy’: drivers/dma/s3c24xx-dma.c:293:30: warning: variable ‘cdata’ set but not used [-Wunused-but-set-variable] struct s3c24xx_dma_channel *cdata; So remove both of them. Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: stm32-dma: remove unused ‘src_addr’Vinod Koul1-2/+0
In stm32_dma_set_xfer_param(), variable ‘src_addr’ is initialized but never used, which leads to warning with W=1 drivers/dma/stm32-dma.c: In function ‘stm32_dma_set_xfer_param’: drivers/dma/stm32-dma.c:577:13: warning: variable ‘src_addr’ set but not used [-Wunused-but-set-variable] dma_addr_t src_addr, dst_addr; So remove it. Reviewed-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: stm32-dma: remove unused ‘dst_addr’Vinod Koul1-2/+1
In stm32_dma_set_xfer_param(), variable ‘dst_addr’ is initialized but never used, which leads to warning with W=1 drivers/dma/stm32-dma.c: In function ‘stm32_dma_set_xfer_param’: drivers/dma/stm32-dma.c:577:23: warning: variable ‘dst_addr’ set but not used [-Wunused-but-set-variable] dma_addr_t src_addr, dst_addr; So remove it. Reviewed-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: stm32-dma: remove unused ‘sfcr’Vinod Koul1-2/+1
In stm32_dma_chan_irq(), variable ‘sfcr’ is initialized but never used, which leads to warning with W=1 drivers/dma/stm32-dma.c: In function ‘stm32_dma_chan_irq’: drivers/dma/stm32-dma.c:530:19: warning: variable ‘sfcr’ set but not used [-Wunused-but-set-variable] u32 status, scr, sfcr; So remove it. Reviewed-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: pch_dma: remove unused ‘cookie’Vinod Koul1-2/+0
In pd_tx_submit(), variable ‘cookie’ is initialized but never used, which leads to warning with W=1 drivers/dma/pch_dma.c: In function ‘pd_tx_submit’: drivers/dma/pch_dma.c:420:15: warning: variable ‘cookie’ set but not used [-Wunused-but-set-variable] dma_cookie_t cookie; So remove it. Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: mic_x100_dma: remove unused ‘data’Vinod Koul1-2/+0
In mic_dma_init(), variable ‘data’ is initialized but never used, which leads to warning with W=1 drivers/dma/mic_x100_dma.c: In function ‘mic_dma_init’: drivers/dma/mic_x100_dma.c:557:17: warning: variable ‘data’ set but not used [-Wunused-but-set-variable] unsigned long data; So remove it. Cc: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: img-mdc: remove unused ‘prev_phys’Vinod Koul1-6/+3
In mdc_prep_dma_memcpy(), mdc_prep_dma_cyclic() and mdc_prep_slave_sg() variable ‘prev_phys’ is initialized but never used, which leads to warning with W=1 drivers/dma/img-mdc-dma.c: In function ‘mdc_prep_dma_memcpy’: drivers/dma/img-mdc-dma.c:295:24: warning: variable ‘prev_phys’ set but not used [-Wunused-but-set-variable] dma_addr_t curr_phys, prev_phys; drivers/dma/img-mdc-dma.c: In function ‘mdc_prep_dma_cyclic’: drivers/dma/img-mdc-dma.c:378:24: warning: variable ‘prev_phys’ set but not used [-Wunused-but-set-variable] dma_addr_t curr_phys, prev_phys; drivers/dma/img-mdc-dma.c: In function ‘mdc_prep_slave_sg’: drivers/dma/img-mdc-dma.c:461:24: warning: variable ‘prev_phys’ set but not used [-Wunused-but-set-variable] dma_addr_t curr_phys, prev_phys; So remove it. Cc: Damien.Horsley <Damien.Horsley@imgtec.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: usb-dmac: remove unused ‘uchan’Vinod Koul1-3/+0
In usb_dmac_of_xlate(), variable ‘uchan’ is initialized but never used, which leads to warning with W=1 drivers/dma/sh/usb-dmac.c: In function ‘usb_dmac_of_xlate’: drivers/dma/sh/usb-dmac.c:655:24: warning: variable ‘uchan’ set but not used [-Wunused-but-set-variable] struct usb_dmac_chan *uchan; So remove it. Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: ioat: remove unused ‘res’Vinod Koul1-3/+0
In __cleanup(), variable ‘res’ is initialized but never used, which leads to warning with W=1 drivers/dma/ioat/dma.c: In function ‘__cleanup’: drivers/dma/ioat/dma.c:614:28: warning: variable ‘res’ set but not used [-Wunused-but-set-variable] struct dmaengine_result res; So remove it. Cc: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: ioat: remove unused ‘ioat_dma’Vinod Koul1-3/+0
In ioat_tx_submit_unlock(), variable ‘ioat_dma’ is initialized but never used, which leads to warning with W=1 drivers/dma/ioat/dma.c: In function ‘ioat_alloc_ring_ent’: drivers/dma/ioat/dma.c:341:25: warning: variable ‘ioat_dma’ set but not used [-Wunused-but-set-variable] struct ioatdma_device *ioat_dma; So remove it. Cc: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-12dmaengine: ioat: remove unused ‘is_raid_device’Vinod Koul1-3/+0
In ioat3_dma_probe(), variable ‘is_raid_device’ is initialized but never used, which leads to warning with W=1 drivers/dma/ioat/init.c: In function ‘ioat3_dma_probe’: drivers/dma/ioat/init.c:1084:7: warning: variable ‘is_raid_device’ set but not used [-Wunused-but-set-variable] bool is_raid_device = false; So remove it. Cc: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-08dmaengine: pl330: do not generate unaligned accessVladimir Murzin1-5/+10
When PL330 is used with !MMU the following fault is seen: Unhandled fault: alignment exception (0x801) at 0x8f26a002 Internal error: : 801 [#1] ARM Modules linked in: CPU: 0 PID: 640 Comm: dma0chan0-copy0 Not tainted 4.8.0-6a82063-clean+ #1600 Hardware name: ARM-Versatile Express task: 8f1baa80 task.stack: 8e6fe000 PC is at _setup_req+0x4c/0x350 LR is at 0x8f2cbc00 pc : [<801ea538>] lr : [<8f2cbc00>] psr: 60000093 sp : 8e6ffdc0 ip : 00000000 fp : 00000000 r10: 00000000 r9 : 8f2cba10 r8 : 8f2cbc00 r7 : 80000013 r6 : 8f21a050 r5 : 8f21a000 r4 : 8f2ac800 r3 : 8e6ffe18 r2 : 00944251 r1 : ffffffbc r0 : 8f26a000 Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment none Control: 00c5387c Process dma0chan0-copy0 (pid: 640, stack limit = 0x8e6fe210) Stack: (0x8e6ffdc0 to 0x8e700000) fdc0: 00000001 60000093 00000000 8f2cba10 8f26a000 00000004 8f0ae000 8f2cbc00 fde0: 8f0ae000 8f2ac800 8f21a000 8f21a050 80000013 8f2cbc00 8f2cba10 00000000 fe00: 60000093 801ebca0 8e6ffe18 000013ff 40000093 00000000 00944251 8f2ac800 fe20: a0000013 8f2b1320 00001986 00000000 00000001 000013ff 8f1e4f00 8f2cba10 fe40: 8e6fff6c 801e9044 00000003 00000000 fef98c80 002faf07 8e6ffe7c 00000000 fe60: 00000002 00000000 00001986 8f1f158d 8f1e4f00 80568de4 00000002 00000000 fe80: 00001986 8f1f53ff 40000001 80580500 8f1f158d 8001e00c 00000000 cfdfdfdf fea0: fdae2a25 00000001 00000004 8e6fe000 00000008 00000010 00000000 00000005 fec0: 8f2b1330 8f2b1334 8e6ffe80 8e6ffe8c 00001986 00000000 8f21a014 00000001 fee0: 8e6ffe60 8e6ffe78 00000002 00000000 000013ff 00000001 80568de4 8f1e8018 ff00: 0000158d 8055ec30 00000001 803f6b00 00001986 8f2cba10 fdae2a25 00000001 ff20: 8f1baca8 8e6fff24 8e6fff24 00000000 8e6fff24 ac6f3037 00000000 00000000 ff40: 00000000 8e6fe000 8f1e4f40 00000000 8f1e4f40 8f1e4f00 801e84ec 00000000 ff60: 00000000 00000000 00000000 80031714 dfdfdfcf 00000000 dfdfdfcf 8f1e4f00 ff80: 00000000 8e6fff84 8e6fff84 00000000 8e6fff90 8e6fff90 8e6fffac 8f1e4f40 ffa0: 80031640 00000000 00000000 8000f548 00000000 00000000 00000000 00000000 ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 dfdfdfcf cfdfdfdf [<801ea538>] (_setup_req) from [<801ebca0>] (pl330_tasklet+0x41c/0x490) [<801ebca0>] (pl330_tasklet) from [<801e9044>] (dmatest_func+0xb58/0x149c) [<801e9044>] (dmatest_func) from [<80031714>] (kthread+0xd4/0xec) [<80031714>] (kthread) from [<8000f548>] (ret_from_fork+0x14/0x2c) Code: e3a03001 e3e01043 e5c03001 e59d3048 (e5802002) This happens because _emit_{ADDH,MOV,GO) accessing to unaligned data while writing to buffer. Fix it with writing to buffer byte by byte. Reviewed-by: Robin Murphy <robin.murphy@arm.com> Tested-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-08dmaengine: k3dma: move to dma_pool_zallocVinod Koul1-2/+1
Replace dma_pool_alloc & memset with dma_pool_zalloc. Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-08dmaengine: at_hdmac: move to dma_pool_zallocVinod Koul1-2/+1
Replace dma_pool_alloc & memset with dma_pool_zalloc. Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-06dmaengine: at_xdmac: don't restore unsaved statusAlexandre Belloni1-2/+0
save_gs is supposed to save the channel status in order to be restored at resume time but it is never updated and is always 0. Anyway, the channel status is updated in the per channel loop later in the resume function. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-06dmaengine: ioat: set error code on failuresPan Bian1-4/+12
In function ioat_xor_val_self_test(), when the calls to dma_mapping_error() fail, the value of return variable err is 0 (indicates no error). As a result, the return value may be inconsistent with the execution status. This patch fixes the bug by assigning "-ENOMEM" to err on the error path. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188601 Signed-off-by: Pan Bian <bianpan2016@163.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-06dmaengine: ioat: set error code on failuresPan Bian1-0/+2
In function ioat_dma_self_test(), when the calls to dma_mapping_error() fails, the value of return variable err is 0 (indicates no error). As a result, the return value may be inconsistent with the execution status. This patch fixes the bug by assigning -ENOMEM to err on the error path. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188591 Signed-off-by: Pan Bian <bianpan2016@163.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-30dmaengine: DW DMAC: add multi-block property to device treeEugeniy Paltsev3-3/+14
Several versions of DW DMAC have multi block transfers hardware support. Hardware support of multi block transfers is disabled by default if we use DT to configure DMAC and software emulation of multi block transfers used instead. Add multi-block property, so it is possible to enable hardware multi block transfers (if present) via DT. Switch from per device is_nollp variable to multi_block array to be able enable/disable multi block transfers separately per channel. Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-30dmaengine: DW DMAC: enable memory-to-memory transfers supportEugeniy Paltsev1-0/+6
All known devices, which use DT for configuration, support memory-to-memory transfers. So enable it by default, if we read configuration from DT. Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-30dmaengine: edma: re-initialize dummy slot during system resumeVignesh R1-0/+3
The last param set in a transfer should always be pointing to dummy param set in non-cyclic mode. When system wakes from low power state EDMA PARAM slots may be reset to random values. Hence, re-initialize dummy slot to dummy param set on system resume. Signed-off-by: Vignesh R <vigneshr@ti.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-30dmaengine: omap-dma: Support for slave devices with data port windowPeter Ujfalusi1-2/+61
Based on the src/dst_port_window_size - if it is set - configure the DMA channel to use double indexing in order to be able to loop within the address window. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-30dmaengine: at_xdmac: Use dma_pool_zallocSouptick Joarder1-2/+1
We should use dma_pool_zalloc instead of dma_pool_alloc/memset. Signed-off-by: Souptick joarder <jrdr.linux@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-30dmaengine: zx296702_dma: Use dma_pool_zallocSouptick Joarder1-2/+1
We should use dma_pool_zalloc instead of dma_pool_alloc/memset. Signed-off-by: Souptick joarder <jrdr.linux@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-30dmaengine: dmatest: honor alignment restriction for buffersDave Jiang1-20/+46
Existing implementation does not honor the alignment restrictions imposed by the DMA engines. Allocate buffers with built in slack for honoring alignment restrictions. Creating new arrays to hold the aligned pointers and use those pointers for operations. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-30dmaengine: fix spacing issues for dmatestDave Jiang1-4/+4
Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-29dmaengine: pch_dma: Replace pci_pool_alloc by pci_pool_zallocSouptick Joarder1-2/+1
Inside pdc_alloc_desc(), pci_pool_alloc() followed by memset will be replaced by pci_pool_zalloc() Signed-off-by: Souptick joarder <jrdr.linux@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-25dmaengine: sun6i: fix the uninitialized value for v_lliHao Zhang1-1/+1
dma_pool_alloc does not initialize the value of the newly allocated block for the v_lli, and the uninitilize value make the tests failed which is on pine64 with dmatest. we can fix it just change the "|=" to "=" for the v_lli->cfg. Signed-off-by: Hao Zhang <hao5781286@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-25dmaengine: mv_xor: use builtin_platform_driverGeliang Tang1-6/+1
Use builtin_platform_driver() helper to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-25dmaengine: mv_xor: Add support for scatter-gather DMA modeStefan Roese2-4/+180
This patch adds memory to memory scatter-gather support to the Marvell mv_or DMA driver. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Gregory CLEMENT <gregory.clement@free-electrons.com> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Marcin Wojtas <mw@semihalf.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-25dmaengine: hsu: pci: switch to new API for IRQ allocationAndy Shevchenko1-3/+5
There is new API in place which provides allocation mechanism of interrupts for PCI devices. Use it in the HSU DMA driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-25dmaengine: imx-sdma - correct the dma transfer residue calculationNandor Han1-4/+9
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>
2016-11-23dmaengine: qcom_hidma: autoload while probing ACPISinan Kaya2-0/+2
MODULE_DEVICE_TABLE is used by the kernel to determine which device driver should be loaded for which platform device. MODULE_DEVICE_TABLE has been only defined for the device-tree based platforms in the current code. Defining it also for ACPI based platforms. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-18i7300_idle: Remove this driverLen Brown1-2/+0
In preparation for removing the idle_notifier, remove its only user, the i7300_idle driver. i7300_idle was deployed in 2008 to reduce idle memory power on systems using the i7300 chipset. The driver worked by throttling the fully-buffered DIMMs during idle periods using the IOAT DMA engine. The driver ran only on the i7300 chip-set, and no other hardware has used this mechanism. The driver no longer has a maintainer. Removing this driver will increase idle power on i7300 systems when they run the new kernel without the driver. Signed-off-by: Len Brown <len.brown@intel.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: http://lkml.kernel.org/r/ad6a044e57cc75f44cc8621abe846e58f7882243.1479449716.git.len.brown@intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2016-11-17dmaengine: cppi41: More PM runtime fixesTony Lindgren1-4/+7
Fix use of u32 instead of int for checking for negative errors values as pointed out by Dan Carpenter <dan.carpenter@oracle.com>. And while testing the PM runtime error path by randomly returning failed values in runtime resume, I noticed two more places that need fixing: - If pm_runtime_get_sync() fails in probe, we still need to do pm_runtime_put_sync() to keep the use count happy. We could call pm_runtime_put_noidle() on the error path, but we're just going to call pm_runtime_disable() after that so pm_runtime_put_sync() will do what we want - We should print an error if pm_runtime_get_sync() fails in cppi41_dma_alloc_chan_resources() so we know where it happens Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: 740b4be3f742 ("dmaengine: cpp41: Fix handling of error path") Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-17dmaengine: pl08x: Add support for the DMA slave mapSylwester Nawrocki1-0/+11
This patch adds support for the new channel request API introduced in commit a8135d0d79e9d0ad3a4ff494fceeaae83 "dmaengine: core: Introduce new, universal API to request a channel". param field of struct dma_slave_map type entries in the platform data structure should be pointing to struct pl08x_channel_data of related DMA channel. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Tested-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-17dmaengine: st_fdma: Revert: "Revert: Update st_fdma to 'depends on REMOTEPROC'"Vinod Koul1-0/+1
This reverts commit 6d066389d598b3c3818c3c841179c2f95bbfe702 "(dmaengine: st_fdma: Revert: Update st_fdma to 'depends on REMOTEPROC')" as the commit it reverted was fine. Reported-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-15dmaengine: qcom_hidma: cleanup sysfs entries during removeSinan Kaya2-6/+24
The 4.8-rc8 kernel is printing duplicate file entry warnings while removing the HIDMA object. This is caused by stale sysfs entries remaining from the previous execution. _sysfs_warn_dup+0x5c/0x78 sysfs_add_file_mode_ns+0x13c/0x1c0 sysfs_create_file_ns+0x2c/0x40 device_create_file+0x54/0xa0 hidma_probe+0x7c8/0x808 Create hidma_sysfs_init and hidma_sysfs_uninit functions and call them from the probe and remove path. To do proper clean up, adding the attrs object to the device data structure to keep it around until remove call is made. Signed-off-by: Sinan Kaya <okaya@codeaurora.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-11-14dmaengine: cpp41: Fix handling of error pathTony Lindgren1-2/+9
If we return early on pm_runtime_get() error, we need to also call pm_runtime_put_noidle() as pointed out in a musb related thread by Johan Hovold <johan@kernel.org>. This is to keep the PM runtime use counts happy. Fixes: fdea2d09b997 ("dmaengine: cppi41: Add basic PM runtime support") Cc: Johan Hovold <johan@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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