Linux kernel source tree https://git.amat.us/linux/atom/drivers/dma?h=v3.10.2 2013-07-22T01:21:35Z 2013-07-22T01:21:35Z Bartlomiej Zolnierkiewicz b.zolnierkie@samsung.com 2013-07-03T22:00:43Z urn:sha1:c14a4eaf8a43a295176942c7a43a999b4557f7c3 commit da331ba8e9c5de72a27e50f71105395bba6eebe0 upstream. tasklet_kill() may sleep so call it before taking pch->lock. Fixes following lockup: BUG: scheduling while atomic: cat/2383/0x00000002 Modules linked in: unwind_backtrace+0x0/0xfc __schedule_bug+0x4c/0x58 __schedule+0x690/0x6e0 sys_sched_yield+0x70/0x78 tasklet_kill+0x34/0x8c pl330_free_chan_resources+0x24/0x88 dma_chan_put+0x4c/0x50 [...] BUG: spinlock lockup suspected on CPU#0, swapper/0/0 lock: 0xe52aa04c, .magic: dead4ead, .owner: cat/2383, .owner_cpu: 1 unwind_backtrace+0x0/0xfc do_raw_spin_lock+0x194/0x204 _raw_spin_lock_irqsave+0x20/0x28 pl330_tasklet+0x2c/0x5a8 tasklet_action+0xfc/0x114 __do_softirq+0xe4/0x19c irq_exit+0x98/0x9c handle_IPI+0x124/0x16c gic_handle_irq+0x64/0x68 __irq_svc+0x40/0x70 cpuidle_wrap_enter+0x4c/0xa0 cpuidle_enter_state+0x18/0x68 cpuidle_idle_call+0xac/0xe0 cpu_idle+0xac/0xf0 Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Cc: Vinod Koul <vinod.koul@linux.intel.com> Cc: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2013-06-07T20:43:44Z Andy Shevchenko andriy.shevchenko@linux.intel.com 2013-05-23T11:29:53Z urn:sha1:bcc567e3115055a9cc256183d72864f01286be22 When user interrupts ongoing transfers the dmatest may end up with console lockup, oops, or data mismatch. This patch prevents user to abort any ongoing test. Documentation is updated accordingly. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reported-by: Will Deacon <will.deacon@arm.com> Tested-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2013-05-27T14:20:32Z Rabin Vincent rabin.vincent@stericsson.com 2013-05-27T14:03:40Z urn:sha1:9ecb41bd8cf002fd8f3e063db4df81647ddd623c The pm runtime reference counting of the driver is broken for the case when there is more than one transfer queued, leading to the device being runtime suspend while active. Fix it. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: stable@vger.kernel.org Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2013-05-26T03:30:31Z Linus Torvalds torvalds@linux-foundation.org 2013-05-26T03:30:31Z urn:sha1:27a24cfa04c6f041c0191847d047f25e5627cd63 Pull slave-dma fixes from Vinod Koul: "We have two patches from Andy & Rafael fixing the Lynxpoint dma" * 'fixes' of git://git.infradead.org/users/vkoul/slave-dma: ACPI / LPSS: register clock device for Lynxpoint DMA properly dma: acpi-dma: parse CSRT to extract additional resources 2013-05-18T09:54:55Z Wolfram Sang wsa@the-dreams.de 2013-05-12T13:19:47Z urn:sha1:627ad13a39575e521a53f949fb2cb899e2945f02 devm_ioremap_resource does sanity checks on the given resource. No need to duplicate this in the driver. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Stephen Warren <swarren@nvidia.com> 2013-05-14T04:53:57Z Andy Shevchenko andriy.shevchenko@linux.intel.com 2013-05-08T08:55:48Z urn:sha1:ee8209fd026b074bb8eb75bece516a338a281b1b Since we have CSRT only to get additional DMA controller resources, let's get rid of drivers/acpi/csrt.c and move its logic inside ACPI DMA helpers code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com> 2013-05-09T16:46:45Z Linus Torvalds torvalds@linux-foundation.org 2013-05-09T16:46:45Z urn:sha1:1763e735b0a093a6747078b3bd101f079e576ab6 Pull slave-dmaengine updates from Vinod Koul: "This time we have dmatest improvements from Andy along with dw_dmac fixes. He has also done support for acpi for dmanegine. Also we have bunch of fixes going in DT support for dmanegine for various folks. Then Haswell and other ioat changes from Dave and SUDMAC support from Shimoda." * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits) dma: tegra: implement suspend/resume callbacks dma:of: Use a mutex to protect the of_dma_list dma: of: Fix of_node reference leak dmaengine: sirf: move driver init from module_init to subsys_initcall sudmac: add support for SUDMAC dma: sh: add Kconfig at_hdmac: move to generic DMA binding ioatdma: ioat3_alloc_sed can be static ioatdma: Adding write back descriptor error status support for ioatdma 3.3 ioatdma: S1200 platforms ioatdma channel 2 and 3 falsely advertise RAID cap ioatdma: Adding support for 16 src PQ ops and super extended descriptors ioatdma: Removing hw bug workaround for CB3.x .2 and earlier dw_dmac: add ACPI support dmaengine: call acpi_dma_request_slave_channel as well dma: acpi-dma: introduce ACPI DMA helpers dma: of: Remove unnecessary list_empty check DMA: OF: Check properties value before running be32_to_cpup() on it DMA: of: Constant names ioatdma: skip silicon bug workaround for pq_align for cb3.3 ioatdma: Removing PQ val disable for cb3.3 ... 2013-05-07T18:06:17Z Linus Torvalds torvalds@linux-foundation.org 2013-05-07T18:06:17Z urn:sha1:38f56f33ca381751f9b8910f67e7a805ec0b68cb Pull ARM SoC device tree updates (part 2) from Arnd Bergmann: "These are mostly new device tree bindings for existing drivers, as well as changes to the device tree source files to add support for those devices, and a couple of new boards, most notably Samsung's Exynos5 based Chromebook. The changes depend on earlier platform specific updates and touch the usual platforms: omap, exynos, tegra, mxs, mvebu and davinci." * tag 'dt-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (169 commits) ARM: exynos: dts: cros5250: add EC device ARM: dts: Add sbs-battery for exynos5250-snow ARM: dts: Add i2c-arbitrator bus for exynos5250-snow ARM: dts: add mshc controller node for Exynos4x12 SoCs ARM: dts: Add chip-id controller node on Exynos4/5 SoC ARM: EXYNOS: Create virtual I/O mapping for Chip-ID controller using device tree ARM: davinci: da850-evm: add SPI flash support ARM: davinci: da850: override SPI DT node device name ARM: davinci: da850: add SPI1 DT node spi/davinci: add DT binding documentation spi/davinci: no wildcards in DT compatible property ARM: dts: mvebu: Convert mvebu device tree files to 64 bits ARM: dts: mvebu: introduce internal-regs node ARM: dts: mvebu: Convert all the mvebu files to use the range property ARM: dts: mvebu: move all peripherals inside soc ARM: dts: mvebu: fix cpus section indentation ARM: davinci: da850: add EHRPWM & ECAP DT node ARM/dts: OMAP3: fix pinctrl-single configuration ARM: dts: Add OMAP3430 SDP NOR flash memory binding ARM: dts: Add NOR flash bindings for OMAP2420 H4 ... 2013-05-06T21:38:00Z Arnd Bergmann arnd@arndb.de 2013-05-06T21:38:00Z urn:sha1:4183bef2e093a2f0aab45f2d5fed82b0e02aeacf This is support for the ARM Chromebook, originally scheduled as a "late" pull request. Since it's already late now, we can combine this into the existing next/dt2 branch. * late/dt: ARM: exynos: dts: cros5250: add EC device ARM: dts: Add sbs-battery for exynos5250-snow ARM: dts: Add i2c-arbitrator bus for exynos5250-snow ARM: dts: Add chip-id controller node on Exynos4/5 SoC ARM: EXYNOS: Create virtual I/O mapping for Chip-ID controller using device tree 2013-05-02T16:49:20Z Laxman Dewangan ldewangan@nvidia.com 2013-04-24T09:54:27Z urn:sha1:3065c194670b61e213656ce25976d7c8a95e3c93 Implement suspend/resume callbacks to store APB DMA channel's register on suspend and restore APB DMA channel's register on resume. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>