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c67d9ce166
443713 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
c67d9ce166 |
ARM: SoC board support updates for 3.16
The bulk of this branch is updates for Renesas Shmobile. They are still doing some enablement for classic boards first, and then come up with DT bindings when they've had a chance to learn more about the hardware. Not necessarily a bad way to go about it, and they're looking at moving some of the temporary board code resulting from it to drivers/staging instead to avoid the churn here. As a result of the shmobile clock cleanups, we end up merging quite a bit of SH code here as well. We ended up merging it here instead of in the cleanup branch due to the other board changes depending on it. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJTjNClAAoJEIwa5zzehBx3Q7wP+wYzWTAU0+3BnnjJpQM79hsX 1hP89RaM6DEyTf6PiL/AKOHsnDponUhNzZu1W5FvNG6cFVenh/nxbmO65FKX9CrY Ap2pkQW+/IcpmIKZ+Hln2bkCc54a6yPouK+5pd9W14X5TtqNmLbdh1qhoq9UjFTo zgLfhch5tyNqfpNOj0vFsmvTw0ZGJ0Neq6olRqQbXmyAaRaWzDa64lmEKVupMdk7 2Fh/8jeXlVlryi7p7CvNoAmZEMm7+We5ZMVsQXLk8b9zcwuCWK0DZzNW4DnRCB1d lsNM/Sygi3Y5zRj2XogNANVhNDIih0f50FX7uuKtmevWNJE9n4To7uFUMTk/3zBt 1hvJLL8w4WHhzkg5v5nFsiCTx65pFaTD/LocPj8lhQ1AYzUvWN5sKPxW0uC1lvJ9 Unlwdc0C4EWs3yq6hAPUZS2eB7owmzNUWdjdkgKfdc74u5RnRay0pUmbRMJm2l20 OKoDSwaluQZUeHrxPnTSLdgpkBbPRn9M5DbswEQsuPyI6yROgCRxaRQ4XcpM93dV 4obCF+fOvX6dtsdIUBCtdhvmJ/iHqhQlPLc2avpt2gyti7eWjQkt5it12hjjOF6A DVBdNHv215EEgvB0MbPJvFVKBLw4boxdeBx+FqMQCqvAbqefHo4gcQZcsUGAv/pX zJ8jgkYhlt7XTd+6GlJu =lWof -----END PGP SIGNATURE----- Merge tag 'boards-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next Pull ARM SoC board support updates from Olof Johansson: "The bulk of this branch is updates for Renesas Shmobile. They are still doing some enablement for classic boards first, and then come up with DT bindings when they've had a chance to learn more about the hardware. Not necessarily a bad way to go about it, and they're looking at moving some of the temporary board code resulting from it to drivers/staging instead to avoid the churn here. As a result of the shmobile clock cleanups, we end up merging quite a bit of SH code here as well. We ended up merging it here instead of in the cleanup branch due to the other board changes depending on it" * tag 'boards-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (130 commits) ARM: davinci: remove checks for CONFIG_USB_MUSB_PERIPHERAL ARM: add drivers for Colibri T30 to multi_v7_defconfig ARM: shmobile: Remove Genmai reference DTS ARM: shmobile: Let Genmai multiplatform boot with Genmai DTB ARM: shmobile: Sync Genmai DTS with Genmai reference DTS ARM: shmobile: genmai-reference: Remove legacy clock support ARM: shmobile: Remove non-multiplatform Genmai reference support ARM: configs: enable XHCI mvebu support in multi_v7_defconfig ARM: OMAP: replace checks for CONFIG_USB_GADGET_OMAP ARM: OMAP: AM3517EVM: remove check for CONFIG_PANEL_SHARP_LQ043T1DG01 ARM: OMAP: SX1: remove check for CONFIG_SX1_OLD_FLASH ARM: OMAP: remove some dead code ARM: OMAP: omap3stalker: remove two Kconfig macros ARM: tegra: tegra_defconfig updates ARM: shmobile: r7s72100: use workaround for non DT-clocks ARM: shmobile: Add forward declaration of struct clk to silence warning ARM: shmobile: r7s72100: remove SPI DT clocks from legacy clock support ARM: shmobile: r7s72100: add spi clocks to dtsi ARM: shmobile: r7s72100: remove I2C DT clocks from legacy clock support ARM: shmobile: r7s72100: add i2c clocks to dtsi ... |
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Linus Torvalds
|
825f4e0271 |
ARM: SoC updates for 3.16 (part 1)
A quite large set of SoC updates this cycle. In no particular order:
- Multi-cluster power management for Samsung Exynos, adding support for
big.LITTLE CPU switching on EXYNOS5
- SMP support for Marvell Armada 375 and 38x
- SMP rework on Allwinner A31
- Xilinx Zynq support for SOC_BUS, big endian
- Marvell orion5x platform cleanup, modernizing the implementation and
moving to DT.
- _Finally_ moving Samsung Exynos over to support MULTIPLATFORM, so
that their platform can be enabled in the same kernel binary as most
of the other v7 platforms in the tree. \o/ The work isn't quite complete,
there's some driver fixes still needed, but the basics now work.
New SoC support added:
- Freescale i.MX6SX
- LSI Axxia AXM55xx SoCs
- Samsung EXYNOS 3250, 5260, 5410, 5420 and 5800
- STi STIH407
Plus a large set of various smaller updates for different platforms. I'm
probably missing some important one here.
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Merge tag 'soc-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next
Pull part one of ARM SoC updates from Olof Johansson:
"A quite large set of SoC updates this cycle. In no particular order:
- Multi-cluster power management for Samsung Exynos, adding support
for big.LITTLE CPU switching on EXYNOS5
- SMP support for Marvell Armada 375 and 38x
- SMP rework on Allwinner A31
- Xilinx Zynq support for SOC_BUS, big endian
- Marvell orion5x platform cleanup, modernizing the implementation
and moving to DT.
- _Finally_ moving Samsung Exynos over to support MULTIPLATFORM, so
that their platform can be enabled in the same kernel binary as
most of the other v7 platforms in the tree. \o/
The work isn't quite complete, there's some driver fixes still
needed, but the basics now work.
New SoC support added:
- Freescale i.MX6SX
- LSI Axxia AXM55xx SoCs
- Samsung EXYNOS 3250, 5260, 5410, 5420 and 5800
- STi STIH407
plus a large set of various smaller updates for different platforms.
I'm probably missing some important one here"
* tag 'soc-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (281 commits)
ARM: exynos: don't run exynos4 l2x0 setup on other platforms
ARM: exynos: Fix "allmodconfig" build errors in mcpm and hotplug
ARM: EXYNOS: mcpm rename the power_down_finish
ARM: EXYNOS: Enable mcpm for dual-cluster exynos5800 SoC
ARM: EXYNOS: Enable multi-platform build support
ARM: EXYNOS: Consolidate Kconfig entries
ARM: EXYNOS: Add support for EXYNOS5410 SoC
ARM: EXYNOS: Support secondary CPU boot of Exynos3250
ARM: EXYNOS: Add Exynos3250 SoC ID
ARM: EXYNOS: Add 5800 SoC support
ARM: EXYNOS: initial board support for exynos5260 SoC
clk: exynos5410: register clocks using common clock framework
ARM: debug: qcom: add UART addresses to Kconfig help for APQ8084
ARM: sunxi: allow building without reset controller
Documentation: devicetree: arm: sort enable-method entries
ARM: rockchip: convert smp bringup to CPU_METHOD_OF_DECLARE
clk: exynos5250: Add missing sysmmu clocks for DISP and ISP blocks
ARM: dts: axxia: Add reset controller
power: reset: Add Axxia system reset driver
ARM: axxia: Adding defconfig for AXM55xx
...
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Linus Torvalds
|
0a58471541 |
ARM: SoC cleanups for 3.16
Cleanups for 3.16. Among these are:
- A bunch of misc cleanups for Broadcom platforms, mostly housekeeping
- Enabling Common Clock Framework on the older s3c24xx Samsung chipsets
- Cleanup of the Versatile Express system controller code, moving it to syscon
- Power management cleanups for OMAP platforms
+ a handful of other cleanups across the place
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Merge tag 'cleanup-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next
Pull ARM SoC cleanups from Olof Johansson:
"Cleanups for 3.16. Among these are:
- a bunch of misc cleanups for Broadcom platforms, mostly
housekeeping
- enabling Common Clock Framework on the older s3c24xx Samsung
chipsets
- cleanup of the Versatile Express system controller code, moving it
to syscon
- power management cleanups for OMAP platforms
plus a handful of other cleanups across the place"
* tag 'cleanup-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (87 commits)
ARM: kconfig: allow PCI support to be selected with ARCH_MULTIPLATFORM
clk: samsung: fix build error
ARM: vexpress: refine dependencies for new code
clk: samsung: clk-s3c2410-dlck: do not use PNAME macro as it declares __initdata
cpufreq: exynos: Fix the compile error
ARM: S3C24XX: move debug-macro.S into the common space
ARM: S3C24XX: use generic DEBUG_UART_PHY/_VIRT in debug macro
ARM: S3C24XX: trim down debug uart handling
ARM: compressed/head.S: remove s3c24xx special case
ARM: EXYNOS: Remove unnecessary inclusion of cpu.h
ARM: EXYNOS: Migrate Exynos specific macros from plat to mach
ARM: EXYNOS: Remove exynos_subsys registration
ARM: EXYNOS: Remove duplicate lines in Makefile
ARM: EXYNOS: use v7_exit_coherency_flush macro for cache disabling
ARM: OMAP4: PRCM: remove references to cm-regbits-44xx.h from PRCM core files
ARM: OMAP3/4: PRM: add support of late_init call to prm_ll_ops
ARM: OMAP3/OMAP4: PRM: add prm_features flags and add IO wakeup under it
ARM: OMAP3/4: PRM: provide io chain reconfig function through irq setup
ARM: OMAP2+: PRM: remove unnecessary cpu_is_XXX calls from prm_init / exit
ARM: OMAP2+: PRCM: cleanup some header includes
...
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Linus Torvalds
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ff933a0817 |
ARM: SoC low-priority fixes for 3.16
A small selection of fixes coming in late during the release cycle and not being critical enough for 3.15 inclusion. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAABAgAGBQJTjN31AAoJEIwa5zzehBx3dQoQAKv1UdMTgwf4/O7YmQzc2CMR guguyAec/FKDl1977Riy4DbLot9QZsA1mxzTjBHYmI9LbTRE/cOkkOip9UUkyRFA B0qlIGgcWv7t4vRHCg0shxNDuBxxjVMrShqPNQuiH0idNpyUVjC5cPlwn5gjTSAr 3p0HDJYwKT3fq9iWYoAIC1I1TdlLxIvKRGjqbWCLxExxRyCs6gblN0Ge1hSMUF8B 0wujPL3c6HHtfGrhFRQSeYXXHj2brIdjr79YyR3w47bNyaY3EVaEOLlrEqEvus9D QFfQqkUCGWBN+MEPhLlO8lxMtqxqkRk3LTsLwsdy92kO/xeCfJBnpWYjjEVUyrzS tOjyVy0r8BKxjLs3Bj+/kNnIRZRPTlSRgGf7j2hO3IQOs9vuujO0MssCZw3c7Lv6 RPFA8+cG1svDNEsipmUcPtPuFugkCv27SUZ+i8SbTPOt9+SzDBkYqLeJro7nCKQm gFaFXuEoHLR3kPICGRZkicrOn5fInPzjLLqs80urunysYZ4fOoKkROnGg78rBIzI YPpLiNjC5rGcQYPgPurPhsMvTKZyzu9amWj36n9h9UcOuOMKy7z0x42J8+t1vbdv tW/5LFEhts4mMaFCbXJib0BtC850meBidhVN2FNquSjVacRaKJfZtXLf97Uogqc5 2UKKX/CVrjD/s8iUysV7 =aWLB -----END PGP SIGNATURE----- Merge tag 'fixes-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into next Pull ARM SoC low-priority fixes from Olof Johansson: "A small selection of fixes coming in late during the release cycle and not being critical enough for 3.15 inclusion" * tag 'fixes-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: shmobile: armadillo800eva: fixup HDMI sound flags setting ARM: msm: Silence readb/writeb warnings due to missing IOMEM() ARM: dts: am43xx: fix starting offset of NAND.filesystem MTD partition ARM: dts: am335x-boneblack: remove use of ti,vcc-aux-disable-is-sleep ARM: OMAP2+: free use_gptimer_clksrc variable after boot ARM: OMAP5: Redo THUMB mode switch on secondary CPU ARM: dts: AM4372: add l3-noc information ARM: dts: DRA7: Use dra7-l3-noc instead of omap4-l3-noc reset: Add of_reset_control_get to reset.h |
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Linus Torvalds
|
80081ec309 |
Merge branch 'for-3.16/drivers' of git://git.kernel.dk/linux-block into next
Pull block driver changes from Jens Axboe:
"Now that the core bits are in, here's the pull request for the driver
related changes for 3.16. Nothing out of the ordinary here, mostly
business as usual. There are a few pulls of for-3.16/core into this
branch, which were done when the blk-mq was modified after the
mtip32xx conversion was put in.
The pull request contains:
- skd and cciss converted to use pci_enable_msix_exact(). From
Alexander Gordeev.
- A few mtip32xx fixes from Asai @ Micron.
- The conversion of mtip32xx from make_request_fn to blk-mq, and a
later small fix for that conversion on quiescing for non-queued IO.
From me.
- A fix for bsg to use an exported function to check whether this
driver is request based or not. Needed updating for blk-mq, which
is request based, but does not have a request_fn hook. From me.
- Small floppy bug fix from Jiri.
- A series of cleanups for the cdrom uniform layer from Joe Perches.
Gets rid of various old ugly macros, making the code conform more
to the modern coding style.
- A series of patches for drbd from the drbd crew (Lars Ellenberg and
Philipp Reisner).
- A use-after-free fix for null_blk from Ming Lei.
- Also from Ming Lei is a performance patch for virtio-blk, which can
net us a 3x win on kvm platforms where world notification is
expensive.
- Ming Lei also fixed a stall issue in virtio-blk, due to a race
between queue start/stop and resource limits.
- A small batch of fixes for xen-blk{back,front} from Olaf Hering and
Valentin Priescu"
* 'for-3.16/drivers' of git://git.kernel.dk/linux-block: (54 commits)
block: virtio_blk: don't hold spin lock during world switch
xen-blkback: defer freeing blkif to avoid blocking xenwatch
xen blkif.h: fix comment typo in discard-alignment
xen/blkback: disable discard feature if requested by toolstack
xen-blkfront: remove type check from blkfront_setup_discard
floppy: do not corrupt bio.bi_flags when reading block 0
mtip32xx: move error handling to service thread
virtio_blk: fix race between start and stop queue
mtip32xx: stop block hardware queues before quiescing IO
mtip32xx: blk_mq_init_queue() returns an ERR_PTR
mtip32xx: convert to use blk-mq
cdrom: Remove unnecessary prototype for cdrom_get_disc_info
cdrom: Remove unnecessary prototype for cdrom_mrw_exit
cdrom: Remove cdrom_count_tracks prototype
cdrom: Remove cdrom_get_next_writeable prototype
cdrom: Remove cdrom_get_last_written prototype
cdrom: Move mmc_ioctls above cdrom_ioctl to remove unnecessary prototype
cdrom: Remove unnecessary sanitize_format prototype
cdrom: Remove unnecessary check_for_audio_disc prototype
cdrom: Remove prototype for open_for_data
...
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Linus Torvalds
|
425553209b |
PCI changes for the v3.16 merge window:
Enumeration
- Notify driver before and after device reset (Keith Busch)
- Use reset notification in NVMe (Keith Busch)
NUMA
- Warn if we have to guess host bridge node information (Myron Stowe)
- Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee Suthikulpanit)
- Clean up and mark early_root_info_init() as deprecated (Suravee Suthikulpanit)
Driver binding
- Add "driver_override" for force specific binding (Alex Williamson)
- Fail "new_id" addition for devices we already know about (Bandan Das)
Resource management
- Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox)
- Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas)
- Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
- Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas)
- Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas)
- Don't convert BAR address to resource if dma_addr_t is too small (Bjorn Helgaas)
- Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas)
- Don't print anything while decoding is disabled (Bjorn Helgaas)
- Don't add disabled subtractive decode bus resources (Bjorn Helgaas)
- Add resource allocation comments (Bjorn Helgaas)
- Restrict 64-bit prefetchable bridge windows to 64-bit resources (Yinghai Lu)
- Assign i82875p_edac PCI resources before adding device (Yinghai Lu)
PCI device hotplug
- Remove unnecessary "dev->bus" test (Bjorn Helgaas)
- Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas)
- Fix rphahp endianess issues (Laurent Dufour)
- Acknowledge spurious "cmd completed" event (Rajat Jain)
- Allow hotplug service drivers to operate in polling mode (Rajat Jain)
- Fix cpqphp possible NULL dereference (Rickard Strandqvist)
MSI
- Replace pci_enable_msi_block() by pci_enable_msi_exact() (Alexander Gordeev)
- Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev)
- Simplify populate_msi_sysfs() (Jan Beulich)
Virtualization
- Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson)
- Mark RTL8110SC INTx masking as broken (Alex Williamson)
Generic host bridge driver
- Add generic PCI host controller driver (Will Deacon)
Freescale i.MX6
- Use new clock names (Lucas Stach)
- Drop old IRQ mapping (Lucas Stach)
- Remove optional (and unused) IRQs (Lucas Stach)
- Add support for MSI (Lucas Stach)
- Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat)
Renesas R-Car
- Add gen2 device tree support (Ben Dooks)
- Use new OF interrupt mapping when possible (Lucas Stach)
- Add PCIe driver (Phil Edworthy)
- Add PCIe MSI support (Phil Edworthy)
- Add PCIe device tree bindings (Phil Edworthy)
Samsung Exynos
- Remove unnecessary OOM messages (Jingoo Han)
- Fix add_pcie_port() section mismatch warning (Sachin Kamat)
Synopsys DesignWare
- Make MSI ISR shared IRQ aware (Lucas Stach)
Miscellaneous
- Check for broken config space aliasing (Alex Williamson)
- Update email address (Ben Hutchings)
- Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas)
- Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas)
- Remove unnecessary __ref annotations (Bjorn Helgaas)
- Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns (Bjorn Helgaas)
- Fix use of uninitialized MPS value (Bjorn Helgaas)
- Tidy x86/gart messages (Bjorn Helgaas)
- Fix return value from pci_user_{read,write}_config_*() (Gavin Shan)
- Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo)
- Remove unused serial device IDs (Jean Delvare)
- Use designated initialization in PCI_VDEVICE (Mark Rustad)
- Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu)
- Configure MPS on ARM (Murali Karicheri)
- Remove unnecessary includes of <linux/init.h> (Paul Gortmaker)
- Move Open Firmware devspec attribute to PCI common code (Sebastian Ott)
- Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott)
- Remove pcibios_add_platform_entries() (Sebastian Ott)
- Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch)
- Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang)
- Add and use new pci_is_bridge() interface (Yijing Wang)
- Make pci_bus_add_device() void (Yijing Wang)
DMA API
- Clarify physical/bus address distinction in docs (Bjorn Helgaas)
- Fix typos in docs (Emilio López)
- Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim)
- Change dma_declare_coherent_memory() CPU address to phys_addr_t (Bjorn Helgaas)
- Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory() (Bjorn Helgaas)
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Merge tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci into next
Pull PCI changes from Bjorn Helgaas:
"Enumeration
- Notify driver before and after device reset (Keith Busch)
- Use reset notification in NVMe (Keith Busch)
NUMA
- Warn if we have to guess host bridge node information (Myron Stowe)
- Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee
Suthikulpanit)
- Clean up and mark early_root_info_init() as deprecated (Suravee
Suthikulpanit)
Driver binding
- Add "driver_override" for force specific binding (Alex Williamson)
- Fail "new_id" addition for devices we already know about (Bandan
Das)
Resource management
- Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox)
- Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas)
- Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
- Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas)
- Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas)
- Don't convert BAR address to resource if dma_addr_t is too small
(Bjorn Helgaas)
- Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas)
- Don't print anything while decoding is disabled (Bjorn Helgaas)
- Don't add disabled subtractive decode bus resources (Bjorn Helgaas)
- Add resource allocation comments (Bjorn Helgaas)
- Restrict 64-bit prefetchable bridge windows to 64-bit resources
(Yinghai Lu)
- Assign i82875p_edac PCI resources before adding device (Yinghai Lu)
PCI device hotplug
- Remove unnecessary "dev->bus" test (Bjorn Helgaas)
- Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas)
- Fix rphahp endianess issues (Laurent Dufour)
- Acknowledge spurious "cmd completed" event (Rajat Jain)
- Allow hotplug service drivers to operate in polling mode (Rajat Jain)
- Fix cpqphp possible NULL dereference (Rickard Strandqvist)
MSI
- Replace pci_enable_msi_block() by pci_enable_msi_exact()
(Alexander Gordeev)
- Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev)
- Simplify populate_msi_sysfs() (Jan Beulich)
Virtualization
- Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson)
- Mark RTL8110SC INTx masking as broken (Alex Williamson)
Generic host bridge driver
- Add generic PCI host controller driver (Will Deacon)
Freescale i.MX6
- Use new clock names (Lucas Stach)
- Drop old IRQ mapping (Lucas Stach)
- Remove optional (and unused) IRQs (Lucas Stach)
- Add support for MSI (Lucas Stach)
- Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat)
Renesas R-Car
- Add gen2 device tree support (Ben Dooks)
- Use new OF interrupt mapping when possible (Lucas Stach)
- Add PCIe driver (Phil Edworthy)
- Add PCIe MSI support (Phil Edworthy)
- Add PCIe device tree bindings (Phil Edworthy)
Samsung Exynos
- Remove unnecessary OOM messages (Jingoo Han)
- Fix add_pcie_port() section mismatch warning (Sachin Kamat)
Synopsys DesignWare
- Make MSI ISR shared IRQ aware (Lucas Stach)
Miscellaneous
- Check for broken config space aliasing (Alex Williamson)
- Update email address (Ben Hutchings)
- Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas)
- Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas)
- Remove unnecessary __ref annotations (Bjorn Helgaas)
- Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns
(Bjorn Helgaas)
- Fix use of uninitialized MPS value (Bjorn Helgaas)
- Tidy x86/gart messages (Bjorn Helgaas)
- Fix return value from pci_user_{read,write}_config_*() (Gavin Shan)
- Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo)
- Remove unused serial device IDs (Jean Delvare)
- Use designated initialization in PCI_VDEVICE (Mark Rustad)
- Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu)
- Configure MPS on ARM (Murali Karicheri)
- Remove unnecessary includes of <linux/init.h> (Paul Gortmaker)
- Move Open Firmware devspec attribute to PCI common code (Sebastian Ott)
- Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott)
- Remove pcibios_add_platform_entries() (Sebastian Ott)
- Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch)
- Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang)
- Add and use new pci_is_bridge() interface (Yijing Wang)
- Make pci_bus_add_device() void (Yijing Wang)
DMA API
- Clarify physical/bus address distinction in docs (Bjorn Helgaas)
- Fix typos in docs (Emilio López)
- Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim)
- Change dma_declare_coherent_memory() CPU address to phys_addr_t
(Bjorn Helgaas)
- Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory()
(Bjorn Helgaas)"
* tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (92 commits)
MAINTAINERS: Add generic PCI host controller driver
PCI: generic: Add generic PCI host controller driver
PCI: imx6: Add support for MSI
PCI: designware: Make MSI ISR shared IRQ aware
PCI: imx6: Remove optional (and unused) IRQs
PCI: imx6: Drop old IRQ mapping
PCI: imx6: Use new clock names
i82875p_edac: Assign PCI resources before adding device
ARM/PCI: Call pcie_bus_configure_settings() to set MPS
PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning
PCI: Make pci_bus_add_device() void
PCI: exynos: Fix add_pcie_port() section mismatch warning
PCI: Introduce new device binding path using pci_dev.driver_override
PCI: rcar: Add gen2 device tree support
PCI: cpqphp: Fix possible null pointer dereference
PCI: rcar: Add R-Car PCIe device tree bindings
PCI: rcar: Add MSI support for PCIe
PCI: rcar: Add Renesas R-Car PCIe driver
PCI: Fix return value from pci_user_{read,write}_config_*()
PCI: exynos: Remove unnecessary OOM messages
...
|
||
|
Linus Torvalds
|
681a289548 |
Merge branch 'for-3.16/core' of git://git.kernel.dk/linux-block into next
Pull block core updates from Jens Axboe:
"It's a big(ish) round this time, lots of development effort has gone
into blk-mq in the last 3 months. Generally we're heading to where
3.16 will be a feature complete and performant blk-mq. scsi-mq is
progressing nicely and will hopefully be in 3.17. A nvme port is in
progress, and the Micron pci-e flash driver, mtip32xx, is converted
and will be sent in with the driver pull request for 3.16.
This pull request contains:
- Lots of prep and support patches for scsi-mq have been integrated.
All from Christoph.
- API and code cleanups for blk-mq from Christoph.
- Lots of good corner case and error handling cleanup fixes for
blk-mq from Ming Lei.
- A flew of blk-mq updates from me:
* Provide strict mappings so that the driver can rely on the CPU
to queue mapping. This enables optimizations in the driver.
* Provided a bitmap tagging instead of percpu_ida, which never
really worked well for blk-mq. percpu_ida relies on the fact
that we have a lot more tags available than we really need, it
fails miserably for cases where we exhaust (or are close to
exhausting) the tag space.
* Provide sane support for shared tag maps, as utilized by scsi-mq
* Various fixes for IO timeouts.
* API cleanups, and lots of perf tweaks and optimizations.
- Remove 'buffer' from struct request. This is ancient code, from
when requests were always virtually mapped. Kill it, to reclaim
some space in struct request. From me.
- Remove 'magic' from blk_plug. Since we store these on the stack
and since we've never caught any actual bugs with this, lets just
get rid of it. From me.
- Only call part_in_flight() once for IO completion, as includes two
atomic reads. Hopefully we'll get a better implementation soon, as
the part IO stats are now one of the more expensive parts of doing
IO on blk-mq. From me.
- File migration of block code from {mm,fs}/ to block/. This
includes bio.c, bio-integrity.c, bounce.c, and ioprio.c. From me,
from a discussion on lkml.
That should describe the meat of the pull request. Also has various
little fixes and cleanups from Dave Jones, Shaohua Li, Duan Jiong,
Fengguang Wu, Fabian Frederick, Randy Dunlap, Robert Elliott, and Sam
Bradshaw"
* 'for-3.16/core' of git://git.kernel.dk/linux-block: (100 commits)
blk-mq: push IPI or local end_io decision to __blk_mq_complete_request()
blk-mq: remember to start timeout handler for direct queue
block: ensure that the timer is always added
blk-mq: blk_mq_unregister_hctx() can be static
blk-mq: make the sysfs mq/ layout reflect current mappings
blk-mq: blk_mq_tag_to_rq should handle flush request
block: remove dead code in scsi_ioctl:blk_verify_command
blk-mq: request initialization optimizations
block: add queue flag for disabling SG merging
block: remove 'magic' from struct blk_plug
blk-mq: remove alloc_hctx and free_hctx methods
blk-mq: add file comments and update copyright notices
blk-mq: remove blk_mq_alloc_request_pinned
blk-mq: do not use blk_mq_alloc_request_pinned in blk_mq_map_request
blk-mq: remove blk_mq_wait_for_tags
blk-mq: initialize request in __blk_mq_alloc_request
blk-mq: merge blk_mq_alloc_reserved_request into blk_mq_alloc_request
blk-mq: add helper to insert requests from irq context
blk-mq: remove stale comment for blk_mq_complete_request()
blk-mq: allow non-softirq completions
...
|
||
|
Linus Torvalds
|
6c52486ded |
Updates for mmci driver:
- Put the device into low power state at system suspend. - Convert to the common mmc DT parser. - Add missing DT bindings needed for ux500. Updates for ARM ux500|u300: - Convert to the common mmc DT bindings. - Remove redundant board file for mmci platform data. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJTjF3hAAoJEP4mhCVzWIwpXh0QAIbK0n+m4GKOo+MoMeuMzCkr 3Go1mh75/JpkLQiKyWthfKInkVJ5VFMBY9ZgqcP5nfzy/NY8BYk3UTvWFQkANp5Y telmC6uhkzw1b2wxdgytZFdJ9e7LJovJRERhzx3N5xDxuqM8gm/IZECvn8MbaFp8 3lpPgjh42yS28XDdr3zF2e9nAUH/PUDmOwoxa5jrqxZF63KVfe4dhXlhFHZsrpBq y96IOH2te3TyfJ3+RuE53uf4qMSSlNaoG+8LO40k8LG5hHs391sh05s03xoiZVNB LvFbr8icF8jvu6Kbag/v1i3Lrcl1/xLxFr0KNbDoY3n0UvizViHs1v6hKl1ZV0kR J0z4+6tP41oKSnXz70HE4hJK10gtI4h5KZiBnrPXdTmNet5pSpclJ9UtB69ZPmZS pmm90p89gDgTzKhjvdnAM1qBeRjWm4BBI6KPwVxqNfL3U5gt5p6RR01JAqn6r48I AUoDPLJJxOP/YoPQja2VmyHA+dJ1/ax0xB5hQ8K2MEoegi52eYAFk2nl+PgvFdMv 3kcoxqwBtnoUwEuZqpD3Wk9WTBbErexpUxUw3Wd+x3t38sv5FKLdelCt++I3qEZb 5XaUIdppslez/i05BMWPKBdkn3fhWEhlJ7w3aZboczy8c+VbOOjIBIvNROuAIRee R+i5hz/AxYz+wT4PBMnv =09ec -----END PGP SIGNATURE----- Merge tag 'mmc-v3.16-1' of git://git.linaro.org/people/ulf.hansson/mmc into next Pull MMC update from Ulf Hansson: "These patches are mainly updates for the mmci driver and have been tested in linux-next. Some ARM SoC related patches are also included and those have been acked from the corresponding maintainers to go through my mmc tree. Updates for mmci driver: - Put the device into low power state at system suspend. - Convert to the common mmc DT parser. - Add missing DT bindings needed for ux500. Updates for ARM ux500|u300: - Convert to the common mmc DT bindings. - Remove redundant board file for mmci platform data" * tag 'mmc-v3.16-1' of git://git.linaro.org/people/ulf.hansson/mmc: (22 commits) mmc: mmci: Enforce DMA configuration through DT mmc: mmci: Enforce max frequency configuration through DT mmc: mmci: Enforce mmc capabilities through DT mmc: mmci: Enforce DT for signal direction and feedback clock ARM: ux500: Remove redundant board file for mmci platform data ARM: ux500: Add a vmmc regulator through DT for the poped eMMC for href ARM: ux500: Add the mmc capabilities flags to DT mmc: mmci: Enable MMC_CAP_CMD23 mmc: mmci: Mark the DT bindings for highspeed mode as deprecated ARM: u300: Convert to the common mmc DT bindings for highspeed mode ARM: nomadik: Convert to the common mmc DT bindings for highspeed mode ARM: ux500: Convert to the common mmc DT bindings for highspeed mode ARM: ux500: Add mmci signal directions and feeback clock in DT for href mmc: mmci: Use the common mmc DT parser mmc: mmci: Add DT bindings for feedback clock pin mmc: mmci: Add DT bindings for signal direction mmc: mmci: Update DT documentation mmc: mmci: Convert to devm functions mmc: mmci: Convert to the mmc gpio API mmc: mmci: Put the device into low power state at system suspend ... |
||
|
Linus Torvalds
|
c9733c79f4 |
HSI changes for the v3.16 series:
- Add some documentation for the HSI subsystem - Add Device Tree support for the HSI subsystem - Add OMAP3 SSI driver (SSI is a legacy variant of HSI) - Add Nokia N900 Modem driver (without speech support for now) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABCgAGBQJTjFVyAAoJENju1/PIO/qa9hYP/05KC3tOWJoyDZYnHhws2nnS 4ZG33syQhTTCJXU7TtT8enSWmSgo9nAts0gdmYIO5IgPJpuPEgybFM61rdMNDOI/ 2wKz1GrCyTNNCg+AW/tm7zIMWN873ikOb82LMu68w/BeFClUpCPuTLpwHNgneR56 O2cS8twAlykuXV/T+poC4Hgr86iIes2xo6ZkjBl9xzdgIZ93gQ1z4dKyJbkh31OT UrWS2oAnekpo+RE+EsMQCCoLwC28/iEMjoLy0SvbRWX/GH90gsQDSKYEVWL4fhxs cNmVir3ySE+BPVcf78Qr8RocRYdFvWp15Z4qdman+RGsrCYVr/EvugViLxpO1D4O 4jCrEvTI8nAEh2CQaCYEwWY+CyB/brS4/hoXRmvskiR+TswmyAAFXap6VtYEzDBz u1dmJYk2IDSpGdE3qRn9uaV5BW7vn040viZERS5UakqTn4ZDpG4S/x1yJf7wSbHf oLgpnBMdwv1/S6GhaqhALKSjz4nibB9lkhF2NqqzhMk0j60JvRpksYNqg4xQjQJS q7IXFZNBhW3LJFbOpRqycrsE0wQJX8xOdtHQzCjKqmDzSMwTIXjDXTLbTiaSB1f2 lOf382SvEEBvDkr4Q+5UbacjQ/4XkDuIBcMTA+migc7I1ADg7x2KS/z8EBtxEOHg VmCbI0PSxf6kFfFDQdg6 =zesq -----END PGP SIGNATURE----- Merge tag 'hsi-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi into next Pull HSI (High Speed Syncronous Interface) changes from Sebastian Reichel: "Please pull the following changes for the HSI subsystem, which I have taken over from Carlos Chinea <carlos.chinea@nokia.com>. The below patches have been worked on in the linux-omap mailinglist for 10 months and are well tested in linux-next (have been in there for more than two weeks) without any problems arising. Apart from that potential regressions are very limited, because the subsystem is not yet used by any platform in the mainline kernel. - Add some documentation for the HSI subsystem - Add Device Tree support for the HSI subsystem - Add OMAP3 SSI driver (SSI is a legacy variant of HSI) - Add Nokia N900 Modem driver (without speech support for now)" * tag 'hsi-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi: HSI: Introduce Nokia N900 modem driver HSI: Introduce driver for SSI Protocol Documentation: DT: omap-ssi binding documentation HSI: Introduce OMAP SSI driver HSI: Add common DT binding for HSI client devices HSI: export method to (un)register clients HSI: Add channel resource support to HSI clients HSI: method to unregister clients from an hsi port HSI: hsi-char: fix driver for multiport scenarios MAINTAINERS: update HSI entry Documentation: HSI: Add some general description for the HSI subsystem |
||
|
Linus Torvalds
|
6885a7f1ed |
Two small fixlets.
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||
|
Linus Torvalds
|
80fb974798 |
This is the bulk of GPIO changes for the v3.16 series:
- We are finalizing and fixing up the gpiochip irqchip helpers
bringing a helpful irqchip implementation into the gpiolib
core and avoiding duplicate code and, more importantly,
duplicate bug fixes:
- Support for using the helpers with threaded interrupt
handlers as used on sleeping GPIO-irqchips
- Do not set up hardware triggers for edges or levels if
the default IRQ type is IRQ_TYPE_NONE - some drivers
would exploit the fact that you could get default
initialization of the IRQ type from the core at probe()
but if no default type is set up from the helper, we
should not call the driver to configure anything. Wait
until a consumer requests the interrupt instead.
- Make the irqchip helpers put the GPIO irqs into their
own lock class. The GPIO irqchips can often emit
(harmless, but annoying) lockdep warnings about recursions
when they are in fact just cascaded IRQs. By putting
them into their own lock class we help the lockdep core
to keep track of things.
- Switch the tc3589x GPIO expanders to use the irqchip
helpers
- Switch the OMAP GPIO driver to use the irqchip helpers
- Add some documentation for the irqchip helpers
- select IRQ_DOMAIN when using the helpers since some
platforms may not be using this by default and it's a
strict dependency.
- Continued GPIO descriptor refactoring:
- Remove the one instance of gpio_to_desc() from the
device tree code, making the OF GPIO code use GPIO
descriptors only.
- Introduce gpiod_get_optional() and
gpiod_get_optional_index() akin to the similar
regulator functions for cases where the use of GPIO
is optional and not strictly required.
- Make of_get_named_gpiod_flags() private - we do not
want to unnecessarily expose APIs to drivers that
make the gpiolib harder than necessary to maintain
and refactor. Privatize this function.
- Support "-gpio" suffix for the OF GPIO retrieveal path.
We used to look for "foo-gpios" or just "gpios" in device
tree nodes, but it turns out that some drivers with a
single GPIO line will just state "foo-gpio" (singularis).
Sigh. Support this with a fallback looking for it, as
this simplifies driver code and handles it in core code.
- Switch the ACPI GPIO core to fetch GPIOs with the
*_cansleep function variants as the GPIO operation
region handler can sleep, and shall be able to handle
gpiochips that sleep.
- Tons of cleanups and janitorial work from Jingoo Han,
Axel Lin, Javier Martinez Canillas and Abdoulaye Berthe.
Notably Jingoo cut off a ton of pointless OOM messages.
- Incremental development and fixes for various drivers,
nothing really special here.
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Merge tag 'gpio-v3.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio into next
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v3.16 series.
There is a lot of action in the GPIO subsystem doing refactorings and
cleanups, almost as many deletions as insertions and minor feature
growth and no new drivers this time. Which is actually pretty nice.
Some GPIO-related stuff will come in through the pin control tree as
well.
Details:
- We are finalizing and fixing up the gpiochip irqchip helpers
bringing a helpful irqchip implementation into the gpiolib core and
avoiding duplicate code and, more importantly, duplicate bug fixes:
* Support for using the helpers with threaded interrupt handlers as
used on sleeping GPIO-irqchips
* Do not set up hardware triggers for edges or levels if the
default IRQ type is IRQ_TYPE_NONE - some drivers would exploit
the fact that you could get default initialization of the IRQ
type from the core at probe() but if no default type is set up
from the helper, we should not call the driver to configure
anything. Wait until a consumer requests the interrupt instead.
* Make the irqchip helpers put the GPIO irqs into their own lock
class. The GPIO irqchips can often emit (harmless, but annoying)
lockdep warnings about recursions when they are in fact just
cascaded IRQs. By putting them into their own lock class we help
the lockdep core to keep track of things.
* Switch the tc3589x GPIO expanders to use the irqchip helpers
* Switch the OMAP GPIO driver to use the irqchip helpers
* Add some documentation for the irqchip helpers
* select IRQ_DOMAIN when using the helpers since some platforms may
not be using this by default and it's a strict dependency.
- Continued GPIO descriptor refactoring:
* Remove the one instance of gpio_to_desc() from the device tree
code, making the OF GPIO code use GPIO descriptors only.
* Introduce gpiod_get_optional() and gpiod_get_optional_index()
akin to the similar regulator functions for cases where the use
of GPIO is optional and not strictly required.
* Make of_get_named_gpiod_flags() private - we do not want to
unnecessarily expose APIs to drivers that make the gpiolib harder
than necessary to maintain and refactor. Privatize this
function.
- Support "-gpio" suffix for the OF GPIO retrieveal path. We used to
look for "foo-gpios" or just "gpios" in device tree nodes, but it
turns out that some drivers with a single GPIO line will just state
"foo-gpio" (singularis). Sigh. Support this with a fallback
looking for it, as this simplifies driver code and handles it in
core code.
- Switch the ACPI GPIO core to fetch GPIOs with the *_cansleep
function variants as the GPIO operation region handler can sleep,
and shall be able to handle gpiochips that sleep.
- Tons of cleanups and janitorial work from Jingoo Han, Axel Lin,
Javier Martinez Canillas and Abdoulaye Berthe. Notably Jingoo cut
off a ton of pointless OOM messages.
- Incremental development and fixes for various drivers, nothing
really special here"
* tag 'gpio-v3.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (85 commits)
gpio: select IRQ_DOMAIN for gpiolib irqchip helpers
gpio: pca953x: use gpiolib irqchip helpers
gpio: pcf857x: Add IRQF_SHARED when request irq
gpio: pcf857x: Avoid calling irq_domain_cleanup twice
gpio: mcp23s08: switch chip count to int
gpio: dwapb: use a second irq chip
gpio: ep93xx: Use devm_ioremap_resource()
gpio: mcp23s08: fixed count variable for devicetree probing
gpio: Add run-time dependencies to R-Car driver
gpio: pch: add slab include
Documentation / ACPI: Fix location of GPIO documentation
gpio / ACPI: use *_cansleep version of gpiod_get/set APIs
gpio: generic: add request function pointer
gpio-pch: Fix Kconfig dependencies
gpio: make of_get_named_gpiod_flags() private
gpio: gpioep93xx: use devm functions
gpio: janzttl: use devm function
gpio: timberdale: use devm functions
gpio: bt8xx: use devm function for memory allocation
gpio: include linux/bug.h in interface header
...
|
||
|
Linus Torvalds
|
9f888b3a10 |
xen: features and fixes for 3.16-rc0
- Support foreign mappings in PVH domains (needed when dom0 is PVH)
- Fix mapping high MMIO regions in x86 PV guests (this is also the
first half of removing the PAGE_IOMAP PTE flag).
- ARM suspend/resume support.
- ARM multicall support.
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Merge tag 'stable/for-linus-3.16-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip into next
Pull Xen updates from David Vrabel:
"xen: features and fixes for 3.16-rc0
- support foreign mappings in PVH domains (needed when dom0 is PVH)
- fix mapping high MMIO regions in x86 PV guests (this is also the
first half of removing the PAGE_IOMAP PTE flag).
- ARM suspend/resume support.
- ARM multicall support"
* tag 'stable/for-linus-3.16-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: map foreign pfns for autotranslated guests
xen-acpi-processor: Don't display errors when we get -ENOSYS
xen/pciback: Document the entry points for 'pcistub_put_pci_dev'
xen/pciback: Document when the 'unbind' and 'bind' functions are called.
xen-pciback: Document when we FLR an PCI device.
xen-pciback: First reset, then free.
xen-pciback: Cleanup up pcistub_put_pci_dev
x86/xen: do not use _PAGE_IOMAP in xen_remap_domain_mfn_range()
x86/xen: set regions above the end of RAM as 1:1
x86/xen: only warn once if bad MFNs are found during setup
x86/xen: compactly store large identity ranges in the p2m
x86/xen: fix set_phys_range_identity() if pfn_e > MAX_P2M_PFN
x86/xen: rename early_p2m_alloc() and early_p2m_alloc_middle()
xen/x86: set panic notifier priority to minimum
arm,arm64/xen: introduce HYPERVISOR_suspend()
xen: refactor suspend pre/post hooks
arm: xen: export HYPERVISOR_multicall to modules.
arm64: introduce virt_to_pfn
arm/xen: Remove definiition of virt_to_pfn in asm/xen/page.h
arm: xen: implement multicall hypercall support.
|
||
|
Linus Torvalds
|
5d70dacd4e |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k into next
Pull m68k updates from Geert Uytterhoeven:
"Highlights:
- support for running kernels in fast TT-RAM instead of slow ST-RAM
on Atari
- multi-platform EARLY_PRINTK
- better support for machines with lots of RAM (think ARAnyM), and
for running kernels larger than 4 MiB (think multi-platform)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k/hp300: Convert printk to pr_foo()
m68k/apollo: Convert printk to pr_foo()
m68k/amiga: Convert printk(foo to pr_foo()
m68k: Increase initial mapping to 8 or 16 MiB if possible
m68k: Update defconfigs for v3.15-rc2
m68k/atari: fix SCC initialization for debug console
m68k/mvme16x: Adopt common boot console
m68k: Multi-platform EARLY_PRINTK
m68k: Toward platform agnostic framebuffer debug logging
m68k/atari - atari_scsi: use correct virt/phys translation for DMA buffer
m68k/atari - ataflop: use correct virt/phys translation for DMA buffer
m68k/atari - atafb: convert allocation of fb ram to new interface
m68k/atari - stram: alloc ST-RAM pool even if kernel not in ST-RAM
|
||
Ulf Hansson
|
8c3a05b489 |
mmc: mmci: Enforce DMA configuration through DT
Remove the option to provide DMA configuration as platform data, enforce it through DT. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Roland Stigge <stigge@antcom.de> Acked-by: Arnd Bergmann <arnd@arndb.de> |
||
|
Linus Torvalds
|
fad01e866a | Linux 3.15-rc8 | ||
|
Linus Torvalds
|
204fe0380b |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc fix from Ben Herrenschmidt: "Here's just one trivial patch to wire up sys_renameat2 which I seem to have completely missed so far. (My test build scripts fwd me warnings but miss the ones generated for missing syscalls)" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Wire renameat2() syscall |
||
|
Linus Torvalds
|
568180a517 |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle: "A fair number of fixes across the field. Nothing terribly complicated; the one liners in below changelog should be fairly descriptive. Noteworthy is the SB1 change which the result of changes to binutils resulting in one big gas warning for most files being assembled as well as the asid_cache and branch emulation fixes which fix corruption or possible uninteded behaviour of kernel or application code. The remainder of fixes are more platforms or subsystem specific" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: R46000: Fix Micro-assembler field overflow for R4600 V2 MIPS: ptrace: Avoid smp_processor_id() in preemptible code MIPS: Lemote 2F: cs5536: mfgpt: use raw locks MIPS: SB1: Fix excessive kernel warnings. MIPS: RC32434: fix broken PCI resource initialization MIPS: malta: memory.c: Initialize the 'memsize' variable MIPS: Fix typo when reporting cache and ftlb errors for ImgTec cores MIPS: Fix inconsistancy of __NR_Linux_syscalls value MIPS: Fix branch emulation of branch likely instructions. MIPS: Fix a typo error in AUDIT_ARCH definition MIPS: Change type of asid_cache to unsigned long |
||
|
Linus Torvalds
|
32439700fe |
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar: "Various fixlets, mostly related to the (root-only) SCHED_DEADLINE policy, but also a hotplug bug fix and a fix for a NR_CPUS related overallocation bug causing a suspend/resume regression" * 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix hotplug vs. set_cpus_allowed_ptr() sched/cpupri: Replace NR_CPUS arrays sched/deadline: Replace NR_CPUS arrays sched/deadline: Restrict user params max value to 2^63 ns sched/deadline: Change sched_getparam() behaviour vs SCHED_DEADLINE sched: Disallow sched_attr::sched_policy < 0 sched: Make sched_setattr() correctly return -EFBIG |
||
Benjamin Herrenschmidt
|
8212f58a9b |
powerpc: Wire renameat2() syscall
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
||
Olof Johansson
|
b5b9324a62 |
ARM: exynos: don't run exynos4 l2x0 setup on other platforms
This was caught by a panic on Broadcom mobile platforms. Note that this code is all going away with the pending l2x0 cleanup series from Russell, but we need this here until that's landed so we can enable exynos multiplatform. Signed-off-by: Olof Johansson <olof@lixom.net> |
||
|
Linus Torvalds
|
a4bf79eb6a |
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core futex/rtmutex fixes from Thomas Gleixner: "Three fixlets for long standing issues in the futex/rtmutex code unearthed by Dave Jones syscall fuzzer: - Add missing early deadlock detection checks in the futex code - Prevent user space from attaching a futex to kernel threads - Make the deadlock detector of rtmutex work again Looks large, but is more comments than code change" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rtmutex: Fix deadlock detector for real futex: Prevent attaching to kernel threads futex: Add another early deadlock detection check |
||
|
Linus Torvalds
|
80e0679469 |
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Mostly quiet now:
i915:
fixing userspace visiblie issues, all stable marked
radeon:
one more pll fix, two crashers, one suspend/resume regression"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/radeon: Resume fbcon last
drm/radeon: only allocate necessary size for vm bo list
drm/radeon: don't allow RADEON_GEM_DOMAIN_CPU for command submission
drm/radeon: avoid crash if VM command submission isn't available
drm/radeon: lower the ref * post PLL maximum once more
drm/i915: Prevent negative relocation deltas from wrapping
drm/i915: Only copy back the modified fields to userspace from execbuffer
drm/i915: Fix dynamic allocation of physical handles
|
||
|
Linus Torvalds
|
9f12600fe4 |
dcache: add missing lockdep annotation
lock_parent() very much on purpose does nested locking of dentries, and
is careful to maintain the right order (lock parent first). But because
it didn't annotate the nested locking order, lockdep thought it might be
a deadlock on d_lock, and complained.
Add the proper annotation for the inner locking of the child dentry to
make lockdep happy.
Introduced by commit
|
||
Abhilash Kesavan
|
4081503b43 |
ARM: exynos: Fix "allmodconfig" build errors in mcpm and hotplug
This fixes the following build errors: /tmp/ccRbZlaA.s: Assembler messages: /tmp/ccRbZlaA.s:69: Error: selected processor does not support ARM mode `isb ' /tmp/ccRbZlaA.s:75: Error: selected processor does not support ARM mode `isb ' /tmp/ccRbZlaA.s:76: Error: selected processor does not support ARM mode `dsb ' make[1]: *** [arch/arm/mach-exynos/hotplug.o] Error 1 /tmp/ccJEg4jw.s: Assembler messages: /tmp/ccJEg4jw.s:454: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:455: Error: selected processor does not support ARM mode `dsb' /tmp/ccJEg4jw.s:465: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:474: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:475: Error: selected processor does not support ARM mode `dsb' /tmp/ccJEg4jw.s:516: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:525: Error: selected processor does not support ARM mode `isb' /tmp/ccJEg4jw.s:526: Error: selected processor does not support ARM mode `dsb' make[1]: *** [arch/arm/mach-exynos/mcpm-exynos.o] Error 1 Reported-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Tested-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net> |
||
|
Olof Johansson
|
fe61f9fd52 |
Exynos 2nd MCPM updates for v3.16
- enable mcpm for dual-cluster exynos5800 - since commit |
||
|
Olof Johansson
|
fe388fac0f |
Samsung Exynos updates for 3.16
- add new SoCs support : exynos3250, 5260, 5410 and 5800 - enable multi-platform on exynos : consolidate exynos related Kconfig entries Note that this requires tags/samsung-cleanup and tags/samsung-clk-2 because of mostly migration exynos specific macros into mach-exynos and exynos related Kconfig entries. One more merge conflict happens in arch/arm/Kconfig for ARCH_EXYNOS due to SRAM stuff, even though tried to sort them out. Since just resolving it would be better I think, please remove ARCH_EXYNOS in arch/arm/Kconfig when merge conflict happens. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJTiNnJAAoJEA0Cl+kVi2xqw4AP/1h2Rtg5/VXTwspQNicVqmjy xh1R5HNkCK9J+Vs+hrajFog4lneTuKDimgJqwM4JcMR9Y6KFCVivMZ+rPpaVpa2o Ly50EgEUAx7iir/PswttUVsSAoP/LXwwP44tWgV6qwV4N2qZ4BPKSAkc+l4icrqv Zzx4h1sxMKF2oTarDsrBIj7UszZtIB6Dt00ogyEJ2BNgWcWzU51YtWOz6MdC+Eha Wz2cfnrl2GiSIUC+Y0jRxeNfJyIgVMvrWpC23d5QSO0qx5xDNhSq/+eNXpd4gTGc aMoBnTgzvymOgLYFkcDCDYxsehXqX1b3hHzu1BfRTWjcA9wmxFhC8eOiMAgDso79 V8L/k5/XVAP34TFzZR1ZD5rCqgBIuDgmeOqyzMAxMLVKTQZrJ/6smKq94FCCD89G lOtiLmAPems8g7DE2wpWsYiml7TyUHNqgHP4FWJThnERjBa+rDKsyozzgFLJLqD7 /qL+qn6C0COtfDN0SBiIiLyV/0j+DI+tS5uGWgKWxGkRLQev1GyWGsGJZBx1tlJB v0/aAEAFkTWg9b+dO9OdUXzbGvc3VAQbaiwfCb73vsEibuO3IGpsXsl0d+ChXUkK XbQW5nNHOCKJj1auAg+4AqWm+evSzjZa/gViUlxE0vpK1Bc8uXZy0sYhQwC0lBaB KBqHE3ImvgIgPhXa3t5R =/Vpg -----END PGP SIGNATURE----- Merge tag 'samsung-exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc Samsung Exynos updates for 3.16 - add new SoCs support : exynos3250, 5260, 5410 and 5800 - enable multi-platform on exynos : consolidate exynos related Kconfig entries * tag 'samsung-exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (22 commits) ARM: EXYNOS: Enable multi-platform build support ARM: EXYNOS: Consolidate Kconfig entries ARM: EXYNOS: Add support for EXYNOS5410 SoC ARM: EXYNOS: Support secondary CPU boot of Exynos3250 ARM: EXYNOS: Add Exynos3250 SoC ID ARM: EXYNOS: Add 5800 SoC support ARM: EXYNOS: initial board support for exynos5260 SoC cpufreq: exynos: Fix the compile error ARM: S3C24XX: move debug-macro.S into the common space ARM: S3C24XX: use generic DEBUG_UART_PHY/_VIRT in debug macro ARM: S3C24XX: trim down debug uart handling ARM: compressed/head.S: remove s3c24xx special case ARM: EXYNOS: Remove unnecessary inclusion of cpu.h ARM: EXYNOS: Migrate Exynos specific macros from plat to mach ARM: EXYNOS: Remove exynos_subsys registration ARM: EXYNOS: Remove duplicate lines in Makefile ARM: EXYNOS: use v7_exit_coherency_flush macro for cache disabling ARM: dts: Remove g2d_pd node for exynos5420 ARM: dts: Remove mau_pd node for exynos5420 ARM: exynos_defconfig: enable HS-I2C to fix for mmc partition mount ... Signed-off-by: Olof Johansson <olof@lixom.net> |
||
|
Olof Johansson
|
8792f59213 |
Samsung 3rd clock updates for 3.16
- add clock for new exynos5410 SoC -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJTiNPgAAoJEA0Cl+kVi2xq7ooQAJayfGs1cdggE10OfbGImzsO m+GNFnHxvr+L4M5aZpwpTBcm5I0QZZghw7Ey/hdF+rErhZVj/xQjun8eri/o9vLz Bs/prI26ZjjvuyEY8gLMhh4FADorB3KfTFbAfSFTiN3TyNZRuFCb3ZQoTOIf0Pwb KVsNmn9EnqrqWPvtvqFXHuo6FVV9MvBGYs86fTfbYc+d3jQHebgVu19vZSHKo3EV Bm00h8SvrnkNiOYZ1Cz2VnFLx5d50+tNyYWgJyv1WvuorbVgY6sXlob5coJhFHBM 7Wdn3OUFRwXVZpd1+5RtQcbm7UPIu/pkK5we3isJHIt4T2GJeExuROTvIQ39VX8E xHFOu8jkISvW61c/T9Je9MfWI4RfdVk3qktkdRclWMn4lB3GovbMZulIWe5Ue1n4 hw+w00Jpuw0tdZO18Cls+Grz1ZoSLoRKB+kDSudLXiG4CqG5Hqk5yZeq13zxes1E 9Ia6XVQ+gRJvuwj+qZHzfQhlpQ+gwtxYSrF6uN8Ehr2z7+sYOq8GNW9yp9EjcsOj wfdjNC9zogOGyhNFk7UaLsFHo77c5ToU1UfA1yo2PLAuk00HX2K8zM/iJA3TzZmi JiwoML6/iQ6Pc1i+GGTnoQs8mu4nEhNZ+3Q8UoY7exdK60uENsOlR2P+HJCig89y 6IbEzdWOGkGQQJn8XAMx =mhiW -----END PGP SIGNATURE----- Merge tag 'samsung-clk-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc Merge "Samsung 3rd clock updates for 3.16" from Kukjin Kim: - add clock for new exynos5410 SoC * tag 'samsung-clk-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: clk: exynos5410: register clocks using common clock framework Signed-off-by: Olof Johansson <olof@lixom.net> |
||
|
Olof Johansson
|
b4c48e8780 |
Qualcomm ARM Based SoC Updates for v3.16-2
* Updated Kconfig DEBUG_QCOM_UARTDM help to include APQ8084 info -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: GPGTools - https://gpgtools.org iQIcBAABCgAGBQJTiLLlAAoJEF9hYXeAcXzB+WMP/R2hkfj5fMtMmerpAaGt9KXW qa8qPM+PC0vEhiZSWHTjUsB+FBx6H4AWVu8FfOYaZQAthYPO/gd5fh7Zd8pzqFs4 sJVFyXjFDaEHxbj1aDw0b5R08CLN2nG15K5x8MS8QQDRW3CzE49Nm3rCXQliEtla V6ID31EOAqXLz9JX0QauSMC2YMkrO0COfR2ERUROg/3cuwFnZPCGmbEnn8UAqtUc ks7JC4toCbxyoA2KOE420pkQOZYHlNvnZgrCI/ZJsjiOlDq3X8vFCNqTgSzjNdwE doH5CGsnC+plZ/BDKm9M71htnbCBZe/LzbPrfK15LB6fwpjHZyIfPFfMRUbEA+j9 UIQFlWp0q+1m4YJ3dfmTOpUzq7j+PQLFjDEiXpxVdNKtVKdYAqrh71gzSsZLz0ay dMYbvuIjGiq9cjQwm4sqT6q4hI3xfNnsUiNFMabhyv1cu5icf+5ysJHWaOHVu1rg j6+HvZCxDet2/zM4ipty94zxF+8/0NFd2AVEfhYqcM3ZObkHdM48hcyIkGQNOqpR xnE2YKQAT7wQQq+cwvRqwEk/aK00fVqqU5AWv14gH8ZKLX3+VBN3Q/8YGktyt92L ML4HziqD10ck+VqWmnKFVNkvh6RBTuZI2Lnz+p56AW9sp3ZceY2a+nbw+5dXsvly q3ft6A0hQ46Hyi5L7D0q =xIWF -----END PGP SIGNATURE----- Merge tag 'qcom-soc-for-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom into next/soc Merge "Qualcomm ARM Based SoC Updates for v3.16-2" from Kumar Gala: * Updated Kconfig DEBUG_QCOM_UARTDM help to include APQ8084 info * tag 'qcom-soc-for-3.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/linux-qcom: ARM: debug: qcom: add UART addresses to Kconfig help for APQ8084 Signed-off-by: Olof Johansson <olof@lixom.net> |
||
Jens Axboe
|
ed851860b4 |
blk-mq: push IPI or local end_io decision to __blk_mq_complete_request()
We have callers outside of the blk-mq proper (like timeouts) that want to call __blk_mq_complete_request(), so rename the function and put the decision code for whether to use ->softirq_done_fn or blk_mq_endio() into __blk_mq_complete_request(). This also makes the interface more logical again. blk_mq_complete_request() attempts to atomically mark the request completed, and calls __blk_mq_complete_request() if successful. __blk_mq_complete_request() then just ends the request. Signed-off-by: Jens Axboe <axboe@fb.com> |
||
Daniel Vetter
|
18ee37a485 |
drm/radeon: Resume fbcon last
So a few people complained that commit |
||
Dave Airlie
|
1446e04c9b |
Merge branch 'drm-fixes-3.15' of git://people.freedesktop.org/~deathsimple/linux into drm-fixes
this is the next pull request for stashed up radeon fixes for 3.15. This is finally calming down with only four patches in this pull request. * 'drm-fixes-3.15' of git://people.freedesktop.org/~deathsimple/linux: drm/radeon: only allocate necessary size for vm bo list drm/radeon: don't allow RADEON_GEM_DOMAIN_CPU for command submission drm/radeon: avoid crash if VM command submission isn't available drm/radeon: lower the ref * post PLL maximum once more |
||
|
Jens Axboe
|
feff689412 |
blk-mq: remember to start timeout handler for direct queue
Commit
|
||
|
Jens Axboe
|
c7bca4183f |
block: ensure that the timer is always added
Commit
|
||
|
Linus Torvalds
|
1487385edb |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input subsystem fixes from Dmitry Torokhov: "A couple of driver/build fixups and also redone quirk for Synaptics touchpads on Lenovo boxes (now using PNP IDs instead of DMI data to limit number of quirks)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: synaptics - change min/max quirk table to pnp-id matching Input: synaptics - add a matches_pnp_id helper function Input: synaptics - T540p - unify with other LEN0034 models Input: synaptics - add min/max quirk for the ThinkPad W540 Input: ambakmi - request a shared interrupt for AMBA KMI devices Input: pxa27x-keypad - fix generating scancode Input: atmel-wm97xx - only build for AVR32 Input: fix ps2/serio module dependency |
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Linus Torvalds
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1326af2464 |
Regression fix for the IEEE 1394 subsystem:
Re-enable IRQ-based asynchronous request reception at addresses below 128 TB. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJTiIlwAAoJEHnzb7JUXXnQ+4oQAJ3ZHtqDJNP99qokiyVorDSw hk2b/nCF2A7PYGgYdyImDx+xiOdI7FE3T6vpDBrel/Vfc/eny3g1PSmklF0pmrgR LKyEAKmqRrEFKNevJPIAOyvf8jMV4E7mkKKp2iGN5s77CdW/KeoNfeP8yzRzMW3n ChG9yZIPWMVuoiGBL74iOZujETP3Y62CVRP9Anz3uG2I7oGQN+09uK+Qc58SR917 fbvJh8f2Yrf+st7oogwpFvKRlDqyskmoonWc39OCPcGeumQ9LycTs5KTMx4htVjW jf8bJDQ/xmHCvPpZpQtZiMbj5pmMkD9cSt0KvMHv4TuV/1NBFECITjoQ03//+byb RmxTH8GRryfpafTLL1Qlf+boecjEK9yuJ/k1YbDEt9YTc6x29oTqJjeXbli5r3FX f0MYLpDEdDH4GuKMgdvDt+CFzGI7NHWupjyYbm/uT0LCEvLhmKnh3z+3HhmUO2wD 7PoDp63t779YhiScnfA+P5CXmjnMjZNtqeCyJYiCDrzcCS3VVQVocFf3iEKF8xrf gOju+BZHuNzw5S3Tn0kf3LaexUW9eMD1LAYDooF1eqpl/hrmsYpLhw3mI7601CDa UNHTY2Wz6Y/2PwkpzKgsHrrKnyaQWak/kZl0jFy7lZhvJqFyNPe8nVWYRdPdVeHk /b/TKJZDiRQXZCrcfEXc =GDAT -----END PGP SIGNATURE----- Merge tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 Pull firewire fix from Stefan Richter: "A regression fix for the IEEE 1394 subsystem: re-enable IRQ-based asynchronous request reception at addresses below 128 TB" * tag 'firewire-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: revert to 4 GB RDMA, fix protocols using Memory Space |
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Linus Torvalds
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24e19d279f |
A dm-cache stable fix to split discards on cache block boundaries
because dm-cache cannot yet handle discards that span cache blocks. Really fix a dm-mpath LOCKDEP warning that was introduced in -rc1. Add a 'no_space_timeout' control to dm-thinp to restore the ability to queue IO indefinitely when no data space is available. This fixes a change in behavior that was introduced in -rc6 where the timeout couldn't be disabled. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJTh9QAAAoJEMUj8QotnQNaNpYH/j07FeH8YlxXRcFzDi7xRVtx luK5b9fLLlmPwW2eKSrvpI8Le4jwDvLwBmpEvN9/wyPiRDSUnYIyYdoV7RJXX2LT wqXatObb84fwQBJ6/q8o2YMzU5ODa5XT6KGEZyD4cHdAZ9FZSwfgqhslyrBJDkSN JBFfkXu066qw8cuYA6KFv4DwBf5eHAt5AjV/QPGd5zGXwETHLZ4ypgpwYHAGbdXa MgfHetwtEnJYvVQex/e+9xC5IDc4/BEAhZq4n3YmEJjNq8EbX15udHmCX7S2M5pT +9tNjUMz4j9BhoC9F8ntRz0pxWZtJK9hGojO4xoXqOCOHgp1xLQd/tHrFZS0v8E= =u5Xd -----END PGP SIGNATURE----- Merge tag 'dm-3.15-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device-mapper fixes from Mike Snitzer: "A dm-cache stable fix to split discards on cache block boundaries because dm-cache cannot yet handle discards that span cache blocks. Really fix a dm-mpath LOCKDEP warning that was introduced in -rc1. Add a 'no_space_timeout' control to dm-thinp to restore the ability to queue IO indefinitely when no data space is available. This fixes a change in behavior that was introduced in -rc6 where the timeout couldn't be disabled" * tag 'dm-3.15-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm mpath: really fix lockdep warning dm cache: always split discards on cache block boundaries dm thin: add 'no_space_timeout' dm-thin-pool module param |
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Minchan Kim
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6538b8ea88 |
x86_64: expand kernel stack to 16K
While I play inhouse patches with much memory pressure on qemu-kvm,
3.14 kernel was randomly crashed. The reason was kernel stack overflow.
When I investigated the problem, the callstack was a little bit deeper
by involve with reclaim functions but not direct reclaim path.
I tried to diet stack size of some functions related with alloc/reclaim
so did a hundred of byte but overflow was't disappeard so that I encounter
overflow by another deeper callstack on reclaim/allocator path.
Of course, we might sweep every sites we have found for reducing
stack usage but I'm not sure how long it saves the world(surely,
lots of developer start to add nice features which will use stack
agains) and if we consider another more complex feature in I/O layer
and/or reclaim path, it might be better to increase stack size(
meanwhile, stack usage on 64bit machine was doubled compared to 32bit
while it have sticked to 8K. Hmm, it's not a fair to me and arm64
already expaned to 16K. )
So, my stupid idea is just let's expand stack size and keep an eye
toward stack consumption on each kernel functions via stacktrace of ftrace.
For example, we can have a bar like that each funcion shouldn't exceed 200K
and emit the warning when some function consumes more in runtime.
Of course, it could make false positive but at least, it could make a
chance to think over it.
I guess this topic was discussed several time so there might be
strong reason not to increase kernel stack size on x86_64, for me not
knowing so Ccing x86_64 maintainers, other MM guys and virtio
maintainers.
Here's an example call trace using up the kernel stack:
Depth Size Location (51 entries)
----- ---- --------
0) 7696 16 lookup_address
1) 7680 16 _lookup_address_cpa.isra.3
2) 7664 24 __change_page_attr_set_clr
3) 7640 392 kernel_map_pages
4) 7248 256 get_page_from_freelist
5) 6992 352 __alloc_pages_nodemask
6) 6640 8 alloc_pages_current
7) 6632 168 new_slab
8) 6464 8 __slab_alloc
9) 6456 80 __kmalloc
10) 6376 376 vring_add_indirect
11) 6000 144 virtqueue_add_sgs
12) 5856 288 __virtblk_add_req
13) 5568 96 virtio_queue_rq
14) 5472 128 __blk_mq_run_hw_queue
15) 5344 16 blk_mq_run_hw_queue
16) 5328 96 blk_mq_insert_requests
17) 5232 112 blk_mq_flush_plug_list
18) 5120 112 blk_flush_plug_list
19) 5008 64 io_schedule_timeout
20) 4944 128 mempool_alloc
21) 4816 96 bio_alloc_bioset
22) 4720 48 get_swap_bio
23) 4672 160 __swap_writepage
24) 4512 32 swap_writepage
25) 4480 320 shrink_page_list
26) 4160 208 shrink_inactive_list
27) 3952 304 shrink_lruvec
28) 3648 80 shrink_zone
29) 3568 128 do_try_to_free_pages
30) 3440 208 try_to_free_pages
31) 3232 352 __alloc_pages_nodemask
32) 2880 8 alloc_pages_current
33) 2872 200 __page_cache_alloc
34) 2672 80 find_or_create_page
35) 2592 80 ext4_mb_load_buddy
36) 2512 176 ext4_mb_regular_allocator
37) 2336 128 ext4_mb_new_blocks
38) 2208 256 ext4_ext_map_blocks
39) 1952 160 ext4_map_blocks
40) 1792 384 ext4_writepages
41) 1408 16 do_writepages
42) 1392 96 __writeback_single_inode
43) 1296 176 writeback_sb_inodes
44) 1120 80 __writeback_inodes_wb
45) 1040 160 wb_writeback
46) 880 208 bdi_writeback_workfn
47) 672 144 process_one_work
48) 528 112 worker_thread
49) 416 240 kthread
50) 176 176 ret_from_fork
[ Note: the problem is exacerbated by certain gcc versions that seem to
generate much bigger stack frames due to apparently bad coalescing of
temporaries and generating too many spills. Rusty saw gcc-4.6.4 using
35% more stack on the virtio path than 4.8.2 does, for example.
Minchan not only uses such a bad gcc version (4.6.3 in his case), but
some of the stack use is due to debugging (CONFIG_DEBUG_PAGEALLOC is
what causes that kernel_map_pages() frame, for example). But we're
clearly getting too close.
The VM code also seems to have excessive stack frames partly for the
same compiler reason, triggered by excessive inlining and lots of
function arguments.
We need to improve on our stack use, but in the meantime let's do this
simple stack increase too. Unlike most earlier reports, there is
nothing simple that stands out as being really horribly wrong here,
apart from the fact that the stack frames are just bigger than they
should need to be. - Linus ]
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Peter Anvin <hpa@zytor.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Hugh Dickins <hughd@google.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S Tsirkin <mst@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: PJ Waskiewicz <pjwaskiewicz@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Kukjin Kim
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7c5688e7fd |
ARM: EXYNOS: mcpm rename the power_down_finish
Since commit
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Abhilash Kesavan
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f99acff1c8 |
ARM: EXYNOS: Enable mcpm for dual-cluster exynos5800 SoC
The exynos5800 is very similar to exynos5420. We can re-use the existing MCPM support for exynos5800 for secondary boot -up and switching. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> |
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Arnd Bergmann
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9dfa92ec40 |
ARM: EXYNOS: Enable multi-platform build support
This makes it possible to enable the Exynos platform as part of a multiplatform kernel. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> |
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Sachin Kamat
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9a1013285f |
ARM: EXYNOS: Consolidate Kconfig entries
Instead of repeating the Kconfig entries for every SoC, move them under ARCH_EXYNOS3, 4 and 5 and move the entries common to 3, 4 and 5 under ARCH_EXYNOS. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> |
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Tarek Dakhran
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723c9c7e16 |
ARM: EXYNOS: Add support for EXYNOS5410 SoC
EXYNOS5410 is SoC in Samsung's Exynos5 SoC series. Add initial support for this SoC. Signed-off-by: Tarek Dakhran <t.dakhran@samsung.com> Signed-off-by: Vyacheslav Tyrtov <v.tyrtov@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> |
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Chanwoo Choi
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6457158acc |
ARM: EXYNOS: Support secondary CPU boot of Exynos3250
This patch fix the offset of CPU boot address and don't need to send smc call of SMC_CMD_CPU1BOOT command for secondary CPU boot because Exynos3250 removes WFE in secure mode. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> |
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Bjorn Helgaas
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617b4157a5 |
Merge branches 'pci/host-exynos', 'pci/host-imx6', 'pci/resource' and 'pci/misc' into next
* pci/host-exynos: PCI: exynos: Fix add_pcie_port() section mismatch warning * pci/host-imx6: PCI: imx6: Add support for MSI PCI: designware: Make MSI ISR shared IRQ aware PCI: imx6: Remove optional (and unused) IRQs PCI: imx6: Drop old IRQ mapping PCI: imx6: Use new clock names PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning * pci/resource: i82875p_edac: Assign PCI resources before adding device * pci/misc: ARM/PCI: Call pcie_bus_configure_settings() to set MPS PCI: Make pci_bus_add_device() void Conflicts: drivers/edac/i82875p_edac.c |
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Bjorn Helgaas
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d785260e2f |
Merge branch 'pci/host-generic' into next
* pci/host-generic: MAINTAINERS: Add generic PCI host controller driver PCI: generic: Add generic PCI host controller driver Conflicts: drivers/pci/host/Kconfig drivers/pci/host/Makefile |
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Chanwoo Choi
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940bc58de5 |
ARM: EXYNOS: Add Exynos3250 SoC ID
This patch add Exynos3250's SoC ID. Exynos 3250 is SoC that is based on the 32-bit RISC processor for Smartphone. Exynos3250 uses Cortex-A7 dual cores and has a target speed of 1.0GHz. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> |
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Arun Kumar K
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86c6f1488d |
ARM: EXYNOS: Add 5800 SoC support
Exynos5800 is an octa core SoC which is based on the 5420 platform. This patch adds the basic support for it in the mach-exynos. Signed-off-by: Arun Kumar K <arun.kk@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> |
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Pankaj Dubey
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ed08f10397 |
ARM: EXYNOS: initial board support for exynos5260 SoC
This patch add basic arch side support for exynos5260 SoC. Note that this is required to enable build for clock driver. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> |
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Kukjin Kim
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fced6dee29 | Merge branch 'v3.16-next/cleanup-samsung' into v3.16-next/platform-exynos | ||
Will Deacon
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cf28855ba7 |
MAINTAINERS: Add generic PCI host controller driver
Add myself as the maintainer for the generic PCI host controller driver. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: Arnd Bergmann <arnd@arndb.de> |