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2018-02-25dmaengine: ioat: Fix error handling pathChristophe JAILLET
[ Upstream commit 5c9afbda911ce20b3f2181d1e440a0222e1027dd ] If the last test in 'ioat_dma_self_test()' fails, we must release all the allocated resources and not just part of them. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-06dmaengine: ioatdma: workaround SKX ioatdma versionDave Jiang
[ Upstream commit 34a31f0af84158955a9747fb5c6712da5bbb5331 ] The Skylake ioatdma is technically CBDMA 3.2+ and contains the same hardware bits with some additional 3.3 features, but it's not really 3.3 where the driver is concerned. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-06dmaengine: ioatdma: Add Skylake PCI Dev IDDave Jiang
[ Upstream commit 1594c18fd297a8edcc72bc4b161f3f52603ebb92 ] Adding Skylake Xeon PCI device ids for ioatdma and related bits. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-22dmaengine: iota: ioat_alloc_chan_resources should not perform sleeping ↵Krister Johansen
allocations. commit 21d25f6a4217e755906cb548b55ddab39d0e88b9 upstream. On a kernel with DEBUG_LOCKS, ioat_free_chan_resources triggers an in_interrupt() warning. With PROVE_LOCKING, it reports detecting a SOFTIRQ-safe to SOFTIRQ-unsafe lock ordering in the same code path. This is because dma_generic_alloc_coherent() checks if the GFP flags permit blocking. It allocates from different subsystems if blocking is permitted. The free path knows how to return the memory to the correct allocator. If GFP_KERNEL is specified then the alloc and free end up going through cma_alloc(), which uses mutexes. Given that ioat_free_chan_resources() can be called in interrupt context, ioat_alloc_chan_resources() must specify GFP_NOWAIT so that the allocations do not block and instead use an allocator that uses spinlocks. Signed-off-by: Krister Johansen <kjlx@templeofstupid.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-03Merge branch 'topic/ioatdma' into for-linusVinod Koul
2016-08-08dmaengine: ioatdma: add error strings to chanerr outputDave Jiang
Provide a mechanism to translate CHANERR bits to English strings in order to allow user to report more concise errors. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ioatdma: Add error handling to ioat driverDave Jiang
Adding error handling to the ioatdma driver so that when a read/write error occurs the error results are reported back and all the remaining descriptors are aborted. This utilizes the new dmaengine callback function that allows reporting of results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ioatdma: convert callback to helper functionDave Jiang
This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-08dmaengine: ioatdma: fix uninitialized array usageDave Jiang
Static analysis showed that unitialized array is being used for compare. At line 850 when a dma_mapping_error() occurs, it jumps to dma_unmap. At this point, dma_srcs has not been initialized. However, the code after dma_unmap label checks dma_srcs for a comparison and thus is comparing to random garbage in the array. Given that when dest_dma is being mapped this is the first instance of mapping DMA memory and failed, there is really nothing to be cleaned up and thus should jump to free_resources label instead. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-07-23dmaengine: ioat: statify symbolVinod Koul
Sparse warns: drivers/dma/ioat/init.c:1215:6: warning: symbol 'ioat_resume' was not declared. Should it be static? Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Dave Jiang <dave.jiang@intel.com>
2016-05-14dmaengine: ioatdma: disable relaxed ordering for ioatdmaDave Jiang
ioatdma by default is in snoop mode. Relaxed ordering according to spec does not do anything in snoop mode. However, it causes hang or significant performance degrade when tested with NTB. Disabling in the driver due to some BIOS do not configure it correctly. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-05-03dmaengine: ioatdma: Use dma_pool_zallocJulia Lawall
Dma_pool_zalloc combines dma_pool_alloc and memset 0. The semantic patch that makes this transformation is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression d,e; statement S; @@ d = - dma_pool_alloc + dma_pool_zalloc (...); if (!d) S - memset(d, 0, sizeof(*d)); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-03-17Merge tag 'dmaengine-4.6-rc1' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull dmaengine updates from Vinod Koul: "This is smallish update with minor changes to core and new driver and usual updates. Nothing super exciting here.. - We have made slave address as physical to enable driver to do the mapping. - We now expose the maxburst for slave dma as new capability so clients can know this and program accordingly - addition of device synchronize callbacks on omap and edma. - pl330 updates to support DMAFLUSHP for Rockchip platforms. - Updates and improved sg handling in Xilinx VDMA driver. - New hidma qualcomm dma driver, though some bits are still in progress" * tag 'dmaengine-4.6-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (40 commits) dmaengine: IOATDMA: revise channel reset workaround on CB3.3 platforms dmaengine: add Qualcomm Technologies HIDMA channel driver dmaengine: add Qualcomm Technologies HIDMA management driver dmaengine: hidma: Add Device Tree binding dmaengine: qcom_bam_dma: move to qcom directory dmaengine: tegra: Move of_device_id table near to its user dmaengine: xilinx_vdma: Remove unnecessary variable initializations dmaengine: sirf: use __maybe_unused to hide pm functions dmaengine: rcar-dmac: clear pertinence number of channels dmaengine: sh: shdmac: don't open code of_device_get_match_data() dmaengine: tegra: don't open code of_device_get_match_data() dmaengine: qcom_bam_dma: Make driver work for BE dmaengine: sun4i: support module autoloading dma/mic_x100_dma: IS_ERR() vs PTR_ERR() typo dmaengine: xilinx_vdma: Use readl_poll_timeout instead of do while loop's dmaengine: xilinx_vdma: Simplify spin lock handling dmaengine: xilinx_vdma: Fix issues with non-parking mode dmaengine: xilinx_vdma: Improve SG engine handling dmaengine: pl330: fix to support the burst mode dmaengine: make slave address physical ...
2016-03-14Merge branch 'topic/ioatdma' into for-linusVinod Koul
2016-03-11dmaengine: IOATDMA: revise channel reset workaround on CB3.3 platformsDave Jiang
Previously we unloaded the interrupts and reloaded in order to work around a channel reset bug that cleared the MSIX table. This approach just isn't practical when a reset needs to happen in the error handler that just happens to be running in interrupt context (bottom half). It looks like we can work around the hardware issue by just storing a shadow copy of the MSIX table and restore it after reset. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-02-15dmaengine: IOATDMA: Allocate DMA descriptor ring in contig DMA memoryDave Jiang
Future IOATDMA hardware will take advantage of descriptors residing in contiguous memory. Setting the descriptor ring in max config DMA memory of 2MB. Each channel will need 2 of these chunks. This should provide 64k of 64B descriptors. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-02-15dmaengine: IOATDMA: Removing descriptor ring reshapeDave Jiang
Moving to contingous memory backed descriptor rings. This makes is really difficult and complex to do reshape. Going to remove this as I don't think we need to do it anymore. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-02-15dmaengine: IOATDMA: Convert pci_pool_* to dma_pool_*Dave Jiang
Converting old pci_pool_* calls to "new" dma_pool_* to make everything uniform. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-01-30dmaengine: IOATDMA: fix timer code that continues to restart channels during ↵Dave Jiang
idle The timer_event() function seems to have a bug where it ends up marking the last entry as non-responding and eventually attempts to restart the channel. This also continuously happen when idle. What needs to happen is for us to make sure there are no descriptors active and then handle that case properly. We should only hit the "cleanup" stage if there are still active descriptors. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-01-25dmaengine: ioatdma: Squelch framesize warningsTim Gardner
CC [M] drivers/dma/ioat/prep.o drivers/dma/ioat/prep.c: In function 'ioat_prep_pqxor': drivers/dma/ioat/prep.c:682:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=] } ^ drivers/dma/ioat/prep.c: In function 'ioat_prep_pqxor_val': drivers/dma/ioat/prep.c:714:1: warning: the frame size of 1048 bytes is larger than 1024 bytes [-Wframe-larger-than=] } gcc version 5.3.1 20151219 (Ubuntu 5.3.1-4ubuntu1) Cc: Vinod Koul <vinod.koul@intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Prarit Bhargava <prarit@redhat.com> Cc: Nicholas Mc Guire <der.herr@hofr.at> Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-11-16dmaengine: ioatdma: constify dca_ops structuresJulia Lawall
The dca_ops structure is never modified, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-11-16dmaengine: IOATDMA: Cleanup pre v3.0 chansts register readsDave Jiang
Remove pre-3.0 channel status reads. 3.0 and later chansts register is 64bit and can be read 64bit. This was clarified with the hardware architects and since the driver now only support 3.0+ we don't need the legacy support Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-09-21dmaengine: ioatdma: add PCIe AER handlersDave Jiang
Adding AER handlers in order to handle any PCIe errors. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-09-21dmaengine: ioatdma: adding shutdown supportDave Jiang
The ioatdma needs to be queisced and block all additional op submission during reboots. When NET_DMA was used, this caused issue as ops were still being sent to ioatdma during reboots even though PCI BME has been turned off. Even though NET_DMA has been deprecated, we need to prevent similar situations. The shutdown handler should address that. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-28dmaengine: ioatdma: add Broadwell EP ioatdma PCI dev IDsDave Jiang
Adding the Broadwell Xeon ioatdma PCI device IDs and related bits. This is still IOATDMA 3.2 based hw. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-26dmaengine: ioatdma: Fix variable array lengthDave Jiang
Sparse reported: drivers/dma/ioat/prep.c:637:27: sparse: Variable length array is used. Assigning a static value for the array. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-26dmaengine: ioatdma: fix sparse "error" with prep lockDave Jiang
The prep lock gets acquired in ioat_check_space_lock and released in ioat_tx_submit_unlock. Setting the annotations so sparse does not freak out. drivers/dma/ioat/dma.c:273:30: sparse: context imbalance in 'ioat_tx_submit_unlock' - unexpected unlock drivers/dma/ioat/dma.c:476:5: sparse: context imbalance in 'ioat_check_space_lock' - wrong count at exit Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-21dmaengine: ioatdma: fix coccinelle warningDave Jiang
Simplifying the end return. This existed in the original code but was flagged when refactoring of the code made it appear it's new. coccinelle warnings: (new ones prefixed by >>) >> drivers/dma/ioat/init.c:1018:1-3: WARNING: end returns can be simpified Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: Clean up IOAT_COMPLETION_PENDING flagDave Jiang
IOAT_COMPLETION_PENDING flag was deprecated for v2 and v3 drivers but was not cleaned up. Doing that now. The commit deprecated this flag was 4dec23d7 ioatdma: fix race between updating ioat->head and IOAT_COMPLETION_PENDING. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: fixup kernel doc errors from dma.hDave Jiang
./scripts/kerne-doc is reporting errors on dma.h. Clean up all reported errors. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmanegine: ioatdma: remove function ptrs in ioatdma_deviceDave Jiang
Since we are a "single" device driver now we no longer require the function pointers in ioatdma_device. Remove. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: removal of dma_v3.c and relevant ioat3 referencesDave Jiang
Moving the relevant functions to their respective .c files and removal of dma_v3.c file. Also removed various ioat3 references when appropriate. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: move dma prep functions to single locationDave Jiang
Move all DMA descriptor prepping functions to prep.c file. Fixup all broken bits caused by the move. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: move all the init routinesDave Jiang
Moving all the init routines to init.c and fixup anything broken during the move. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: move all sysfs related codeDave Jiang
Move and fixup all sysfs related bits to sysfs.c file. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: remove dma_v2.*Dave Jiang
Clean out dma_v2 and remove ioat2 calls since we are moving everything to just ioat. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: fixup ioatdma_device namingsDave Jiang
Changing the variable names for ioatdma_device to be consistently named ioat_dma instead of device/dma in order to avoid confusion and distinct from struct device. This will clearly indicate that it is an ioatdma_device. This also make all the naming consistent that the dma device is ioat_dma and all the channels are ioat_chan. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: clean up local dma channel data structureDave Jiang
Kill the common ioatdma channel structure and everything that is not dma_chan to be ioat_dma_chan. Since we don't have to worry about v1 and v2 ioatdma anymore this makes it much cleaner and obvious for maintenance. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: remove ioatdma v2 registrationDave Jiang
Removal of support for ioatdma v2 device support. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: remove ioat1 specific codeDave Jiang
Cleaning up of ioat1 specific code as it is no longer supported Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: deprecating and removal of old ioatdma devicesDave Jiang
Removal of any devices that are ioatdma pre-3.0. This is the first step in attempting to clean up the ioatdma driver and remove hw no longer supported. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: fix u16 overflow in cleanupAllen Hubbe
If the allocation order is 16, then the u16 count will overflow and wrap to zero when assigned the value 1 << 16. Change the type of 'total_descs' to int, so that it is large enough to store a value equal or greater than 1 << 16. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-08-17dmaengine: ioatdma: fix u16 overflow in reshapeAllen Hubbe
If the allocation order is 16, then the u16 index will overflow and wrap to zero instead of being equal or greater than 1 << 16. The loop condition will always be true, and the loop will run until all the memory resources are depleted. Change the type of index 'i' to u32, so that it is large enough to store a value equal or greater than 1 << 16. Signed-off-by: Allen Hubbe <Allen.Hubbe@emc.com> Acked-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-07-16dmaengine: ioatdma: Ignore IOAT devices under hotplug-capable PCI host bridgeJiang Liu
The dmaengine core assumes that async DMA devices will only be removed when they not used anymore, or it assumes dma_async_device_unregister() will only be called by dma driver exit routines. But this assumption is not true for the IOAT driver, which calls dma_async_device_unregister() from ioat_remove(). So current IOAT driver doesn't support device hot-removal because it may cause system crash to hot-remove an inuse IOAT device. To support CPU socket hot-removal, all PCI devices, including IOAT devices embedded in the socket, will be hot-removed. The idea solution is to enhance the dmaengine core and IOAT driver to support hot-removal, but that's too hard. This patch implements a hack to disable IOAT devices under hotplug-capable CPU socket so it won't break socket hot-removal. Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-07-07dmaengine: ioatdma: Set non RAID channels to be private capableDave Jiang
This allows claiming of non-RAID channels as a private channel. This prevents breakage of MDRAID using the IOATDMA channels via async_tx but also allows agents such as NTB to claim channels exclusively for its usages. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-04-24Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull slave-dmaengine updates from Vinod Koul: - new drivers for: - Ingenic JZ4780 controller - APM X-Gene controller - Freescale RaidEngine device - Renesas USB Controller - remove device_alloc_chan_resources dummy handlers - sh driver cleanups for peri peri and related emmc and asoc patches as well - fixes and enhancements spread over the drivers * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (59 commits) dmaengine: dw: don't prompt for DW_DMAC_CORE dmaengine: shdmac: avoid unused variable warnings dmaengine: fix platform_no_drv_owner.cocci warnings dmaengine: pch_dma: fix memory leak on failure path in pch_dma_probe() dmaengine: at_xdmac: unlock spin lock before return dmaengine: xgene: devm_ioremap() returns NULL on error dmaengine: xgene: buffer overflow in xgene_dma_init_channels() dmaengine: usb-dmac: Fix dereferencing freed memory 'desc' dmaengine: sa11x0: report slave capabilities to upper layers dmaengine: vdma: Fix compilation warnings dmaengine: fsl_raid: statify fsl_re_chan_probe dmaengine: Driver support for FSL RaidEngine device. dmaengine: xgene_dma_init_ring_mngr() can be static Documentation: dma: Add documentation for the APM X-Gene SoC DMA device DTS binding arm64: dts: Add APM X-Gene SoC DMA device and DMA clock DTS nodes dmaengine: Add support for APM X-Gene SoC DMA engine driver dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver dmaengine: renesas,usb-dmac: Add device tree bindings documentation dmaengine: edma: fixed wrongly initialized data parameter to the edma callback dmaengine: ste_dma40: fix implicit conversion ...
2015-03-16dmaengine: Remove FSF mailing addressesJarkko Nikula
Free Software Foundation mailing address has been moved in the past and some of the addresses here are outdated. Remove them from file headers since the COPYING file in the kernel sources includes it. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-03-05dmaengine: ioatdma: workaround for incorrect DMACAP registerDave Jiang
BDX-DE IOATDMA reports incorrect DMACAP register for PQ related ops. Ignoring those bits. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Acked-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-04ioat: fail self-test if wait_for_completion times outNicholas Mc Guire
wait_for_completion_timeout reaching timeout was being ignored, fail the self-test if timeout condition occurs. v2: fixup of coding style issues. Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at> Acked-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2015-02-03ioatdma: Adding support for BDX-DE ioatdma.Dave Jiang
Adding PCI device IDs and hooks in workarounds for Broadwell DE ioatdma. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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