wireguard-linux/drivers/dma/idxd, branch jd/unified-crypt-queue

Merge tag 'dmaengine-5.7-rc1' of git://git.infradead.org/users/vkoul/slave-dma

2020-04-02T23:04:42Z

Pull dmaengine updates from Vinod Koul: "Core: - Some code cleanup and optimization in core by Andy - Debugfs support for displaying dmaengine channels by Peter Drivers: - New driver for uniphier-xdmac controller - Updates to stm32 dma, mdma and dmamux drivers and PM support - More updates to idxd drivers - Bunch of changes in tegra-apb driver and cleaning up of pm functions - Bunch of spelling fixes and Replace zero-length array patches - Shutdown hook for fsl-dpaa2-qdma driver - Support for interleaved transfers for ti-edma and virtualization support for k3-dma driver - Support for reset and updates in xilinx_dma driver - Improvements and locking updates in at_hdma driver" * tag 'dmaengine-5.7-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (89 commits) dt-bindings: dma: renesas,usb-dmac: add r8a77961 support dmaengine: uniphier-xdmac: Remove redandant error log for platform_get_irq dmaengine: tegra-apb: Improve DMA synchronization dmaengine: tegra-apb: Don't save/restore IRQ flags in interrupt handler dmaengine: tegra-apb: mark PM functions as __maybe_unused dmaengine: fix spelling mistake "exceds" -> "exceeds" dmaengine: sprd: Set request pending flag when DMA controller is active dmaengine: ppc4xx: Use scnprintf() for avoiding potential buffer overflow dmaengine: idxd: remove global token limit check dmaengine: idxd: reflect shadow copy of traffic class programming dmaengine: idxd: Merge definition of dsa_batch_desc into dsa_hw_desc dmaengine: Create debug directories for DMA devices dmaengine: ti: k3-udma: Implement custom dbg_summary_show for debugfs dmaengine: Add basic debugfs support dmaengine: fsl-dpaa2-qdma: remove set but not used variable 'dpaa2_qdma' dmaengine: ti: edma: fix null dereference because of a typo in pointer name dmaengine: fsl-dpaa2-qdma: Adding shutdown hook dmaengine: uniphier-xdmac: Add UniPhier external DMA controller driver dt-bindings: dmaengine: Add UniPhier external DMA controller bindings dmaengine: ti: k3-udma: Implement support for atype (for virtualization) ...

dmaengine: idxd: fix off by one on cdev dwq refcount

2020-03-23T06:02:06Z

The refcount check for dedicated workqueue (dwq) is off by one and allows more than 1 user to open the char device. Fix check so only a single user can open the device. Fixes: 42d279f9137a ("dmaengine: idxd: add char driver to expose submission portal to userland") Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/158403020187.10208.14117394394540710774.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul

dmaengine: idxd: remove global token limit check

2020-03-11T09:38:52Z

The global token_limit is not tied to group tokens_reserved and tokens_allowed parameters. Remove the check in order to allow independent configuration. Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver") Reported-by: Yixin Zhang Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/158386266911.11066.7545764533072221536.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul

dmaengine: idxd: reflect shadow copy of traffic class programming

2020-03-11T09:38:52Z

The traffic class are set to -1 at initialization until the user programs them. If the user choose not to, the driver will program appropriate defaults. The driver also needs to update the shadowed copies of the values after doing the programming. Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver") Reported-by: Yixin Zhang Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/158386263076.10898.4586509576813094559.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul

dmaengine: idxd: expose general capabilities register in sysfs

2020-03-02T07:13:49Z

There are some capabilities for the device that are interesting to user apps that are interacting directly with the device. Expose gencap register in sysfs to allow that information. Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/158256729399.55526.10842505054968710547.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul

dmaengine: idxd: check return result from check_vma() in cdev

2020-03-02T07:13:49Z

The returned result from the check_vma() function in the cdev ->mmap() call needs to be handled. Add the check and returning error. Fixes: 42d279f9137a ("dmaengine: idxd: add char driver to expose submission portal to userland") Reported-by: Vinod Koul Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/158264926659.9387.14325163515683047959.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul

dmaengine: idxd: wq size configuration needs to check global max size

2020-02-24T16:32:34Z

The current size_store() function for idxd sysfs does not check the total wq size. This allows configuration of all wqs with total wq size. Add check to make sure the wq sysfs attribute rejects storing of size over the total wq size. Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver") Reported-by: Jerry Chen Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/158213309629.2509.3583411832507185041.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul

dmaengine: idxd: sysfs input of wq incorrect wq type should return error

2020-02-24T16:32:34Z

Currently when inputing an unrecognized wq type, we set the wq type to "none". It really should return error and not change the existing wq type that's in the kernel. Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver") Reported-by: Yixin Zhang Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/158213304803.2290.13336343633425868211.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul

dmaengine: idxd: correct reserved token calculation

2020-02-19T09:18:46Z

The calcuation for limit of reserved token did not take into account the change the user wanted vs the current group reserved token. This causes changing of the reserved token to be possible only after we set the value of the reserved token back to 0. Fix calculation so we can set a value that is non zero for reserved token. Fixes: c52ca478233c ("dmaengine: idxd: add configuration component of driver") Reported-by: Jerry Chen Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/158204471889.37789.7749177228265869168.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul

dmaengine: idxd: Fix error handling in idxd_wq_cdev_dev_setup()

2020-02-13T15:07:23Z

We can't call kfree(dev) after calling device_register(dev). The "dev" pointer has to be freed using put_device(). Fixes: 42d279f9137a ("dmaengine: idxd: add char driver to expose submission portal to userland") Signed-off-by: Dan Carpenter Acked-by: Dave Jiang Link: https://lore.kernel.org/r/20200205123248.hmtog7qa2eiqaagh@kili.mountain Signed-off-by: Vinod Koul