mirror of https://gitee.com/openkylin/linux.git
2824 Commits
Author | SHA1 | Message | Date |
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Jason Baron | ddb4530601 |
arm: jump label may reference text in __exit
The jump table can reference text found in an __exit section. Thus, instead of discarding it at build time, include EXIT_TEXT as part of __init and it will be released when the system boots. Link: http://lkml.kernel.org/r/60284113bb759121e8ae3e99af1535647e52123f.1467837322.git.jbaron@akamai.com Signed-off-by: Jason Baron <jbaron@akamai.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Joe Perches <joe@perches.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds | d52bd54db8 |
Merge branch 'akpm' (patches from Andrew)
Merge yet more updates from Andrew Morton: - the rest of ocfs2 - various hotfixes, mainly MM - quite a bit of misc stuff - drivers, fork, exec, signals, etc. - printk updates - firmware - checkpatch - nilfs2 - more kexec stuff than usual - rapidio updates - w1 things * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (111 commits) ipc: delete "nr_ipc_ns" kcov: allow more fine-grained coverage instrumentation init/Kconfig: add clarification for out-of-tree modules config: add android config fragments init/Kconfig: ban CONFIG_LOCALVERSION_AUTO with allmodconfig relay: add global mode support for buffer-only channels init: allow blacklisting of module_init functions w1:omap_hdq: fix regression w1: add helper macro module_w1_family w1: remove need for ida and use PLATFORM_DEVID_AUTO rapidio/switches: add driver for IDT gen3 switches powerpc/fsl_rio: apply changes for RIO spec rev 3 rapidio: modify for rev.3 specification changes rapidio: change inbound window size type to u64 rapidio/idt_gen2: fix locking warning rapidio: fix error handling in mbox request/release functions rapidio/tsi721_dma: advance queue processing from transfer submit call rapidio/tsi721: add messaging mbox selector parameter rapidio/tsi721: add PCIe MRRS override parameter rapidio/tsi721_dma: add channel mask and queue size parameters ... |
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Russell King | 0719392a61 |
ARM: kexec: fix kexec for Keystone 2
Provide kexec with the boot view of memory by overriding the normal kexec translation functions added in a previous patch. We also need to fix a call to memblock in machine_kexec_prepare() so that we provide it with a running-view physical address rather than a boot- view physical address. Link: http://lkml.kernel.org/r/E1b8koa-0004Hl-Ey@rmk-PC.armlinux.org.uk Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Keerthy <j-keerthy@ti.com> Cc: Pratyush Anand <panand@redhat.com> Cc: Vitaly Andrianov <vitalya@ti.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Dave Young <dyoung@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Simon Horman <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Russell King | 966fab00b0 |
ARM: kexec: advertise location of bootable RAM
Advertise the location of bootable RAM to kexec-tools. kexec needs to know where it can place the kernel in RAM, and so be executable when the system needs to jump into it. Advertise these areas in /proc/iomem with a "System RAM (boot alias)" tag. Link: http://lkml.kernel.org/r/E1b8ko4-0004HA-GF@rmk-PC.armlinux.org.uk Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Reviewed-by: Pratyush Anand <panand@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Keerthy <j-keerthy@ti.com> Cc: Vitaly Andrianov <vitalya@ti.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Simon Horman <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Russell King | f7f0b7dc72 |
ARM: kdump: advertise boot aliased crash kernel resource
Advertise a resource which describes where the crash kernel is located in the boot view of RAM. This allows kexec-tools to have this vital information. Link: http://lkml.kernel.org/r/E1b8knz-0004H4-Bd@rmk-PC.armlinux.org.uk Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Baoquan He <bhe@redhat.com> Cc: Keerthy <j-keerthy@ti.com> Cc: Pratyush Anand <panand@redhat.com> Cc: Vitaly Andrianov <vitalya@ti.com> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Dave Young <dyoung@redhat.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Simon Horman <horms@verge.net.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds | c8d0267efd |
PCI changes for the v4.8 merge window:
Enumeration Move ecam.h to linux/include/pci-ecam.h (Jayachandran C) Add parent device field to ECAM struct pci_config_window (Jayachandran C) Add generic MCFG table handling (Tomasz Nowicki) Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki) Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki) Resource management Add devm_request_pci_bus_resources() (Bjorn Helgaas) Unify pci_resource_to_user() declarations (Bjorn Helgaas) Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas) Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas) Make PCI I/O space optional on ARM32 (Bjorn Helgaas) Ignore write combining when mapping I/O port space (Bjorn Helgaas) Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas) Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas) Support I/O resources when parsing host bridge resources (Jayachandran C) Add helpers to request/release memory and I/O regions (Johannes Thumshirn) Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn) Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5)) Add generic pci_bus_claim_resources() (Lorenzo Pieralisi) Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi) Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi) Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya) Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu) PCI device hotplug Allow additional bus numbers for hotplug bridges (Keith Busch) Ignore interrupts during D3cold (Lukas Wunner) Power management Enforce type casting for pci_power_t (Andy Shevchenko) Don't clear d3cold_allowed for PCIe ports (Mika Westerberg) Put PCIe ports into D3 during suspend (Mika Westerberg) Power on bridges before scanning new devices (Mika Westerberg) Runtime resume bridge before rescan (Mika Westerberg) Add runtime PM support for PCIe ports (Mika Westerberg) Remove redundant check of pcie_set_clkpm (Shawn Lin) Virtualization Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra) Add DMA alias quirk for Adaptec 3805 (Alex Williamson) Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake) Add ACS quirk for Solarflare SFC9220 (Edward Cree) MSI Fix PCI_MSI dependencies (Arnd Bergmann) Add pci_msix_desc_addr() helper (Christoph Hellwig) Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig) Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig) Provide sensible IRQ vector alloc/free routines (Christoph Hellwig) Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig) Error Handling Bind DPC to Root Ports as well as Downstream Ports (Keith Busch) Remove DPC tristate module option (Keith Busch) Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg) Generic host bridge driver Select IRQ_DOMAIN (Arnd Bergmann) Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi) ACPI host bridge driver Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki) Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki) Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki) Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki) Altera host bridge driver Check link status before retrain link (Ley Foon Tan) Poll for link up status after retraining the link (Ley Foon Tan) Axis ARTPEC-6 host bridge driver Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann) Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel) Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel) Intel VMD host bridge driver Use lock save/restore in interrupt enable path (Jon Derrick) Select device dma ops to override (Keith Busch) Initialize list item in IRQ disable (Keith Busch) Use x86_vector_domain as parent domain (Keith Busch) Separate MSI and MSI-X vector sharing (Keith Busch) Marvell Aardvark host bridge driver Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni) Add Aardvark PCI host controller driver (Thomas Petazzoni) Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni) Microsoft Hyper-V host bridge driver Fix interrupt cleanup path (Cathy Avery) Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov) Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov) NVIDIA Tegra host bridge driver Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren) Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren) Use lower-case hex consistently for register definitions (Thierry Reding) Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding) Stop setting pcibios_min_mem (Thierry Reding) Renesas R-Car host bridge driver Drop gen2 dummy I/O port region (Bjorn Helgaas) TI DRA7xx host bridge driver Fix return value in case of error (Christophe JAILLET) Xilinx AXI host bridge driver Fix return value in case of error (Christophe JAILLET) Miscellaneous Make bus_attr_resource_alignment static (Ben Dooks) Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks) MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven) Make host bridge drivers explicitly non-modular (Paul Gortmaker) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJXoNRtAAoJEFmIoMA60/r8LMkP/3kiNh21QFS6RZGOaDft5/Py n14Zo0w51avspxoI3iyDlBd5q/SssMqi+2c6Ko/fh2D2xMxJgmQOjdMDrIGARxGA qEHk/5IoXquY2/GcptmCk3ap66cJ6kTovS4OPrb73m3fPuknFwFwdzExq22XHbnI crPya6xwQxPLc54VpY/TsgW8E+EKZd/3FW9wuzzNHXrXmTILyhBQzQAA0K470GMx wEXU6kc3M/XhRuF1zjV9/O+H/xguwfnbTpZLvd2NAF6uXKZoRytEHHtNnVqu1hoe UPpDS2xq32pMNbGxGqBetCdIbkY/hWOufmckHI7Yu2OfXBYyHBYMG2je1+nMPkOV WiFhhrchGt5KnEMUwXPS4ROqnSZVpZBl1Fd4s10GhUYkoE2HNKJXta398H9FR1jj 4NEVSi4mSX/+CkaoIN3lXYiaf9P0wv4Wppve4Scr30+VnLjJhm7Vw5La7v12oo6x otrJ/g98AkmnbuUdLeWBUS/+TOcdPjZYbw52rqBsbOOjFm51Zcj6D7kf5WcTypQy HzbvygSVabcioWehUG1uudC8pdJmQlUGx1aES/iu+mZEae4cuUFALu6hDBD9IYnZ 5JdwjVzI0UItEwT3rQt3t4xiAqHADQ0NAVNJVCeREdoy/YQpSoTWGXIpyqCZ1yCm aBykjRsxbKQXlhVeIxuc =NVxu -----END PGP SIGNATURE----- Merge tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Highlights: - ARM64 support for ACPI host bridges - new drivers for Axis ARTPEC-6 and Marvell Aardvark - new pci_alloc_irq_vectors() interface for MSI-X, MSI, legacy INTx - pci_resource_to_user() cleanup (more to come) Detailed summary: Enumeration: - Move ecam.h to linux/include/pci-ecam.h (Jayachandran C) - Add parent device field to ECAM struct pci_config_window (Jayachandran C) - Add generic MCFG table handling (Tomasz Nowicki) - Refactor pci_bus_assign_domain_nr() for CONFIG_PCI_DOMAINS_GENERIC (Tomasz Nowicki) - Factor DT-specific pci_bus_find_domain_nr() code out (Tomasz Nowicki) Resource management: - Add devm_request_pci_bus_resources() (Bjorn Helgaas) - Unify pci_resource_to_user() declarations (Bjorn Helgaas) - Implement pci_resource_to_user() with pcibios_resource_to_bus() (microblaze, powerpc, sparc) (Bjorn Helgaas) - Request host bridge window resources (designware, iproc, rcar, xgene, xilinx, xilinx-nwl) (Bjorn Helgaas) - Make PCI I/O space optional on ARM32 (Bjorn Helgaas) - Ignore write combining when mapping I/O port space (Bjorn Helgaas) - Claim bus resources on MIPS PCI_PROBE_ONLY set-ups (Bjorn Helgaas) - Remove unicore32 pci=firmware command line parameter handling (Bjorn Helgaas) - Support I/O resources when parsing host bridge resources (Jayachandran C) - Add helpers to request/release memory and I/O regions (Johannes Thumshirn) - Use pci_(request|release)_mem_regions (NVMe, lpfc, GenWQE, ethernet/intel, alx) (Johannes Thumshirn) - Extend pci=resource_alignment to specify device/vendor IDs (Koehrer Mathias (ETAS/ESW5)) - Add generic pci_bus_claim_resources() (Lorenzo Pieralisi) - Claim bus resources on ARM32 PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi) - Remove ARM32 and ARM64 arch-specific pcibios_enable_device() (Lorenzo Pieralisi) - Add pci_unmap_iospace() to unmap I/O resources (Sinan Kaya) - Remove powerpc __pci_mmap_set_pgprot() (Yinghai Lu) PCI device hotplug: - Allow additional bus numbers for hotplug bridges (Keith Busch) - Ignore interrupts during D3cold (Lukas Wunner) Power management: - Enforce type casting for pci_power_t (Andy Shevchenko) - Don't clear d3cold_allowed for PCIe ports (Mika Westerberg) - Put PCIe ports into D3 during suspend (Mika Westerberg) - Power on bridges before scanning new devices (Mika Westerberg) - Runtime resume bridge before rescan (Mika Westerberg) - Add runtime PM support for PCIe ports (Mika Westerberg) - Remove redundant check of pcie_set_clkpm (Shawn Lin) Virtualization: - Add function 1 DMA alias quirk for Marvell 88SE9182 (Aaron Sierra) - Add DMA alias quirk for Adaptec 3805 (Alex Williamson) - Mark Atheros AR9485 and QCA9882 to avoid bus reset (Chris Blake) - Add ACS quirk for Solarflare SFC9220 (Edward Cree) MSI: - Fix PCI_MSI dependencies (Arnd Bergmann) - Add pci_msix_desc_addr() helper (Christoph Hellwig) - Switch msix_program_entries() to use pci_msix_desc_addr() (Christoph Hellwig) - Make the "entries" argument to pci_enable_msix() optional (Christoph Hellwig) - Provide sensible IRQ vector alloc/free routines (Christoph Hellwig) - Spread interrupt vectors in pci_alloc_irq_vectors() (Christoph Hellwig) Error Handling: - Bind DPC to Root Ports as well as Downstream Ports (Keith Busch) - Remove DPC tristate module option (Keith Busch) - Convert Downstream Port Containment driver to use devm_* functions (Mika Westerberg) Generic host bridge driver: - Select IRQ_DOMAIN (Arnd Bergmann) - Claim bus resources on PCI_PROBE_ONLY set-ups (Lorenzo Pieralisi) ACPI host bridge driver: - Add ARM64 acpi_pci_bus_find_domain_nr() (Tomasz Nowicki) - Add ARM64 ACPI support for legacy IRQs parsing and consolidation with DT code (Tomasz Nowicki) - Implement ARM64 AML accessors for PCI_Config region (Tomasz Nowicki) - Support ARM64 ACPI-based PCI host controller (Tomasz Nowicki) Altera host bridge driver: - Check link status before retrain link (Ley Foon Tan) - Poll for link up status after retraining the link (Ley Foon Tan) Axis ARTPEC-6 host bridge driver: - Add PCI_MSI_IRQ_DOMAIN dependency (Arnd Bergmann) - Add DT binding for Axis ARTPEC-6 PCIe controller (Niklas Cassel) - Add Axis ARTPEC-6 PCIe controller driver (Niklas Cassel) Intel VMD host bridge driver: - Use lock save/restore in interrupt enable path (Jon Derrick) - Select device dma ops to override (Keith Busch) - Initialize list item in IRQ disable (Keith Busch) - Use x86_vector_domain as parent domain (Keith Busch) - Separate MSI and MSI-X vector sharing (Keith Busch) Marvell Aardvark host bridge driver: - Add DT binding for the Aardvark PCIe controller (Thomas Petazzoni) - Add Aardvark PCI host controller driver (Thomas Petazzoni) - Add Aardvark PCIe support for Armada 3700 (Thomas Petazzoni) Microsoft Hyper-V host bridge driver: - Fix interrupt cleanup path (Cathy Avery) - Don't leak buffer in hv_pci_onchannelcallback() (Vitaly Kuznetsov) - Handle all pending messages in hv_pci_onchannelcallback() (Vitaly Kuznetsov) NVIDIA Tegra host bridge driver: - Program PADS_REFCLK_CFG* always, not just on legacy SoCs (Stephen Warren) - Program PADS_REFCLK_CFG* registers with per-SoC values (Stephen Warren) - Use lower-case hex consistently for register definitions (Thierry Reding) - Use generic pci_remap_iospace() rather than ARM32-specific one (Thierry Reding) - Stop setting pcibios_min_mem (Thierry Reding) Renesas R-Car host bridge driver: - Drop gen2 dummy I/O port region (Bjorn Helgaas) TI DRA7xx host bridge driver: - Fix return value in case of error (Christophe JAILLET) Xilinx AXI host bridge driver: - Fix return value in case of error (Christophe JAILLET) Miscellaneous: - Make bus_attr_resource_alignment static (Ben Dooks) - Include <asm/dma.h> for isa_dma_bridge_buggy (Ben Dooks) - MAINTAINERS: Add file patterns for PCI device tree bindings (Geert Uytterhoeven) - Make host bridge drivers explicitly non-modular (Paul Gortmaker)" * tag 'pci-v4.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (125 commits) PCI: xgene: Make explicitly non-modular PCI: thunder-pem: Make explicitly non-modular PCI: thunder-ecam: Make explicitly non-modular PCI: tegra: Make explicitly non-modular PCI: rcar-gen2: Make explicitly non-modular PCI: rcar: Make explicitly non-modular PCI: mvebu: Make explicitly non-modular PCI: layerscape: Make explicitly non-modular PCI: keystone: Make explicitly non-modular PCI: hisi: Make explicitly non-modular PCI: generic: Make explicitly non-modular PCI: designware-plat: Make it explicitly non-modular PCI: artpec6: Make explicitly non-modular PCI: armada8k: Make explicitly non-modular PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency PCI: Add ACS quirk for Solarflare SFC9220 arm64: dts: marvell: Add Aardvark PCIe support for Armada 3700 PCI: aardvark: Add Aardvark PCI host controller driver dt-bindings: add DT binding for the Aardvark PCIe controller PCI: tegra: Program PADS_REFCLK_CFG* registers with per-SoC values ... |
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Bjorn Helgaas | 9454c23852 |
Merge branch 'pci/msi-affinity' into next
Conflicts: drivers/nvme/host/pci.c |
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Bjorn Helgaas | 79dd993461 |
Merge branches 'pci/demodularize-hosts' and 'pci/host-request-windows' into next
* pci/demodularize-hosts: PCI: xgene: Make explicitly non-modular PCI: thunder-pem: Make explicitly non-modular PCI: thunder-ecam: Make explicitly non-modular PCI: tegra: Make explicitly non-modular PCI: rcar-gen2: Make explicitly non-modular PCI: rcar: Make explicitly non-modular PCI: mvebu: Make explicitly non-modular PCI: layerscape: Make explicitly non-modular PCI: keystone: Make explicitly non-modular PCI: hisi: Make explicitly non-modular PCI: generic: Make explicitly non-modular PCI: designware-plat: Make it explicitly non-modular PCI: artpec6: Make explicitly non-modular PCI: armada8k: Make explicitly non-modular PCI: artpec: Add PCI_MSI_IRQ_DOMAIN dependency PCI: artpec: Add Axis ARTPEC-6 PCIe controller driver PCI: Add DT binding for Axis ARTPEC-6 PCIe controller PCI: generic: Select IRQ_DOMAIN * pci/host-request-windows: PCI: versatile: Simplify host bridge window iteration PCI: versatile: Request host bridge window resources with core function PCI: tegra: Request host bridge window resources with core function PCI: tegra: Remove top-level resource from hierarchy PCI: rcar: Simplify host bridge window iteration PCI: rcar: Request host bridge window resources with core function PCI: rcar Gen2: Request host bridge window resources PCI: rcar: Drop gen2 dummy I/O port region ARM: Make PCI I/O space optional PCI: mvebu: Request host bridge window resources with core function PCI: generic: Simplify host bridge window iteration PCI: generic: Request host bridge window resources with core function PCI: altera: Simplify host bridge window iteration PCI: altera: Request host bridge window resources with core function PCI: xilinx-nwl: Use dev_printk() when possible PCI: xilinx-nwl: Request host bridge window resources PCI: xilinx-nwl: Free bridge resource list on failure PCI: xilinx: Request host bridge window resources PCI: xilinx: Free bridge resource list on failure PCI: xgene: Request host bridge window resources PCI: xgene: Free bridge resource list on failure PCI: iproc: Request host bridge window resources PCI: designware: Simplify host bridge window iteration PCI: designware: Request host bridge window resources PCI: designware: Free bridge resource list on failure PCI: Add devm_request_pci_bus_resources() |
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Linus Torvalds | f64d6e2aaa |
DeviceTree update for 4.8:
- Removal of most of_platform_populate() calls in arch code. Now the DT core code calls it in the default case and platforms only need to call it if they have special needs. - Use pr_fmt on all the DT core print statements. - CoreSight binding doc improvements to block name descriptions. - Add dt_to_config script which can parse dts files and list corresponding kernel config options. - Fix memory leak hit with a PowerMac DT. - Correct a bunch of STMicro compatible strings to use the correct vendor prefix. - Fix DA9052 PMIC binding doc to match what is actually used in dts files. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJXm9KcAAoJEPr7XbWNvGHDRT4QAIIIOSB4AWHardnMLROgGge9 aOQKZ/05O9feOcxYKe8FkQbcH+IujJjrUL+yrRD36yGQPAyBP21gtcmmfrkCcwFM kH915f/JbGvXpfwEf8dcarHhzYH6FFJiQGduPpWfwSSWynx+xq5EKPwCqYzMg8bN SExxt7vUx1MKFOExZ0K8BNCo8VMVLUWQoJ1DNeJDuL25Op4EU3i2l1HQNYV/3XDk BSA3x7Lw3GjrWEH20VWYn2Azq1OFLY+E2FC2lnG4nbkk5X8dZbUH9PR1Sk7uTQDj uxTjWe59NBpliCxKSAbMbTAU/WwSB1pJ0I+zDJBiQsdFT+nb5F4zOrs3qSKHa/A9 Rv6AC8k5gdSMrDB1dOspfF2vWvOOInXgNV4/Kza0D92mbCpwyUuF+vhE6rfcMrZU OiD7rj2/fvO7Y9fUAhrp6zrfrOfH9B1Z9vS+940AlK96YwPE2+J0SA2vBxR/wg8H 7fj4Ud5X+SFisXWQhh5Wlv0W9o6e7C7fsi8vpkQ7gufmezLFWVnJKsUfQaxGEwhG Hkhm9kuSHHMd+6dEnn2756DnNfJAtQv6rSR0/QR4Lf9y5L4dvR3kAQIci8X/nx4P sIk+IJWGZG6wziZq59hh+SO6HEqdSNuvh+5sbR0iUimdE/1HsDBdPiocXf/r8iwK NY9nGeZPRrXmFgdpoZfm =wLMr -----END PGP SIGNATURE----- Merge tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DeviceTree updates from Rob Herring: - remove most of_platform_populate() calls in arch code. Now the DT core code calls it in the default case and platforms only need to call it if they have special needs - use pr_fmt on all the DT core print statements - CoreSight binding doc improvements to block name descriptions - add dt_to_config script which can parse dts files and list corresponding kernel config options - fix memory leak hit with a PowerMac DT - correct a bunch of STMicro compatible strings to use the correct vendor prefix - fix DA9052 PMIC binding doc to match what is actually used in dts files * tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (35 commits) documentation: da9052: Update regulator bindings names to match DA9052/53 DTS expectations xtensa: Partially Revert "xtensa: Remove unnecessary of_platform_populate with default match table" xtensa: Fix build error due to missing include file MIPS: ath79: Add missing include file Fix spelling errors in Documentation/devicetree ARM: dts: fix STMicroelectronics compatible strings powerpc/dts: fix STMicroelectronics compatible strings Documentation: dt: i2c: use correct STMicroelectronics vendor prefix scripts/dtc: dt_to_config - kernel config options for a devicetree of: fdt: mark unflattened tree as detached of: overlay: add resolver error prints coresight: document binding acronyms Documentation/devicetree: document cavium-pip rx-delay/tx-delay properties of: use pr_fmt prefix for all console printing of/irq: Mark initialised interrupt controllers as populated of: fix memory leak related to safe_name() Revert "of/platform: export of_default_bus_match_table" of: unittest: use of_platform_default_populate() to populate default bus memory: omap-gpmc: use of_platform_default_populate() to populate default bus bus: uniphier-system-bus: use of_platform_default_populate() to populate default bus ... |
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Linus Torvalds | 7a1e8b80fb |
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris: "Highlights: - TPM core and driver updates/fixes - IPv6 security labeling (CALIPSO) - Lots of Apparmor fixes - Seccomp: remove 2-phase API, close hole where ptrace can change syscall #" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (156 commits) apparmor: fix SECURITY_APPARMOR_HASH_DEFAULT parameter handling tpm: Add TPM 2.0 support to the Nuvoton i2c driver (NPCT6xx family) tpm: Factor out common startup code tpm: use devm_add_action_or_reset tpm2_i2c_nuvoton: add irq validity check tpm: read burstcount from TPM_STS in one 32-bit transaction tpm: fix byte-order for the value read by tpm2_get_tpm_pt tpm_tis_core: convert max timeouts from msec to jiffies apparmor: fix arg_size computation for when setprocattr is null terminated apparmor: fix oops, validate buffer size in apparmor_setprocattr() apparmor: do not expose kernel stack apparmor: fix module parameters can be changed after policy is locked apparmor: fix oops in profile_unpack() when policy_db is not present apparmor: don't check for vmalloc_addr if kvzalloc() failed apparmor: add missing id bounds check on dfa verification apparmor: allow SYS_CAP_RESOURCE to be sufficient to prlimit another task apparmor: use list_next_entry instead of list_entry_next apparmor: fix refcount race when finding a child profile apparmor: fix ref count leak when profile sha1 hash is read apparmor: check that xindex is in trans_table bounds ... |
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Linus Torvalds | a6408f6cb6 |
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull smp hotplug updates from Thomas Gleixner: "This is the next part of the hotplug rework. - Convert all notifiers with a priority assigned - Convert all CPU_STARTING/DYING notifiers The final removal of the STARTING/DYING infrastructure will happen when the merge window closes. Another 700 hundred line of unpenetrable maze gone :)" * 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits) timers/core: Correct callback order during CPU hot plug leds/trigger/cpu: Move from CPU_STARTING to ONLINE level powerpc/numa: Convert to hotplug state machine arm/perf: Fix hotplug state machine conversion irqchip/armada: Avoid unused function warnings ARC/time: Convert to hotplug state machine clocksource/atlas7: Convert to hotplug state machine clocksource/armada-370-xp: Convert to hotplug state machine clocksource/exynos_mct: Convert to hotplug state machine clocksource/arm_global_timer: Convert to hotplug state machine rcu: Convert rcutree to hotplug state machine KVM/arm/arm64/vgic-new: Convert to hotplug state machine smp/cfd: Convert core to hotplug state machine x86/x2apic: Convert to CPU hotplug state machine profile: Convert to hotplug state machine timers/core: Convert to hotplug state machine hrtimer: Convert to hotplug state machine x86/tboot: Convert to hotplug state machine arm64/armv8 deprecated: Convert to hotplug state machine hwtracing/coresight-etm4x: Convert to hotplug state machine ... |
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Linus Torvalds | b5f00d18cc |
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King: "Included in this update are: - Patches from Gregory Clement to fix the coherent DMA cases in our dma-mapping code. - A number of CPU errata updates and fixes. - ARM cpuidle improvements from Jisheng Zhang. - Fix from Kees for the location of _etext. - Cleanups from Masahiro Yamada to avoid duplicated messages during the kernel build, and remove CONFIG_ARCH_HAS_BARRIERS. - Remove a udelay loop limitation, allowing for faster CPUs to calibrate the delay correctly. - Cleanup some left-overs from the SW PAN implementation. - Ensure that a modified address limit is not visible to exception handlers" * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (21 commits) ARM: 8586/1: cpuidle: make arm_cpuidle_suspend() a bit more efficient ARM: 8585/1: cpuidle: fix !cpuidle_ops[cpu].init case during init ARM: 8561/4: dma-mapping: Fix the coherent case when iommu is used ARM: 8561/3: dma-mapping: Don't use outer_flush_range when the L2C is coherent ARM: 8560/1: errata: Workaround errata A12 825619 / A17 852421 ARM: 8559/1: errata: Workaround erratum A12 821420 ARM: 8558/1: errata: Workaround errata A12 818325/852422 A17 852423 ARM: save and reset the address limit when entering an exception ARM: 8577/1: Fix Cortex-A15 798181 errata initialization ARM: 8584/1: floppy: avoid gcc-6 warning ARM: 8583/1: mm: fix location of _etext ARM: 8582/1: remove unused CONFIG_ARCH_HAS_BARRIERS ARM: 8306/1: loop_udelay: remove bogomips value limitation ARM: 8581/1: add missing <asm/prom.h> to arch/arm/kernel/devtree.c ARM: 8576/1: avoid duplicating "Kernel: arch/arm/boot/*Image is ready" ARM: 8556/1: on a generic DT system: do not touch l2x0 ARM: uaccess: remove put_user() code duplication ARM: 8580/1: Remove orphaned __addr_ok() definition ARM: get rid of horrible *(unsigned int *)(regs + 1) ARM: introduce svc_pt_regs structure ... |
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Russell King | 5f5a00eaa1 | Merge branches 'cpuidle', 'fixes' and 'misc' into for-linus | |
Linus Torvalds | 08fd8c1768 |
xen: features and fixes for 4.8-rc0
- ACPI support for guests on ARM platforms. - Generic steal time support for arm and x86. - Support cases where kernel cpu is not Xen VCPU number (e.g., if in-guest kexec is used). - Use the system workqueue instead of a custom workqueue in various places. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAABAgAGBQJXmLlrAAoJEFxbo/MsZsTRvRQH/1wOMF8BmlbZfR7H3qwDfjst ApNifCiZE08xDtWBlwUaBFAQxyflQS9BBiNZDVK0sysIdXeOdpWV7V0ZjRoLL+xr czsaaGXDcmXxJxApoMDVuT7FeP6rEk6LVAYRoHpVjJjMZGW3BbX1vZaMW4DXl2WM 9YNaF2Lj+rpc1f8iG31nUxwkpmcXFog6ct4tu7HiyCFT3hDkHt/a4ghuBdQItCkd vqBa1pTpcGtQBhSmWzlylN/PV2+NKcRd+kGiwd09/O/rNzogTMCTTWeHKAtMpPYb Cu6oSqJtlK5o0vtr0qyLSWEGIoyjE2gE92s0wN3iCzFY1PldqdsxUO622nIj+6o= =G6q3 -----END PGP SIGNATURE----- Merge tag 'for-linus-4.8-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from David Vrabel: "Features and fixes for 4.8-rc0: - ACPI support for guests on ARM platforms. - Generic steal time support for arm and x86. - Support cases where kernel cpu is not Xen VCPU number (e.g., if in-guest kexec is used). - Use the system workqueue instead of a custom workqueue in various places" * tag 'for-linus-4.8-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (47 commits) xen: add static initialization of steal_clock op to xen_time_ops xen/pvhvm: run xen_vcpu_setup() for the boot CPU xen/evtchn: use xen_vcpu_id mapping xen/events: fifo: use xen_vcpu_id mapping xen/events: use xen_vcpu_id mapping in events_base x86/xen: use xen_vcpu_id mapping when pointing vcpu_info to shared_info x86/xen: use xen_vcpu_id mapping for HYPERVISOR_vcpu_op xen: introduce xen_vcpu_id mapping x86/acpi: store ACPI ids from MADT for future usage x86/xen: update cpuid.h from Xen-4.7 xen/evtchn: add IOCTL_EVTCHN_RESTRICT xen-blkback: really don't leak mode property xen-blkback: constify instance of "struct attribute_group" xen-blkfront: prefer xenbus_scanf() over xenbus_gather() xen-blkback: prefer xenbus_scanf() over xenbus_gather() xen: support runqueue steal time on xen arm/xen: add support for vm_assist hypercall xen: update xen headers xen-pciback: drop superfluous variables xen-pciback: short-circuit read path used for merging write values ... |
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Richard Cochran | 26b8768868 |
arm/twd: Convert to hotplug state machine
Install the callbacks via the state machine. The callbacks won't be invoked on already online CPUs. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Eric Anholt <eric@anholt.net> Cc: Felipe Balbi <balbi@ti.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Marc Gonzalez <marc_gonzalez@sigmadesigns.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: linux-arm-kernel@lists.infradead.org Cc: rt@linutronix.de Link: http://lkml.kernel.org/r/20160713153336.881124821@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Jisheng Zhang | c3fbbf9308 |
ARM: 8586/1: cpuidle: make arm_cpuidle_suspend() a bit more efficient
Currently, we check cpuidle_ops.suspend every time when entering a low-power idle state. But this check could be avoided in this hot path by moving it into arm_cpuidle_read_ops() to reduce arm_cpuidle_suspend overhead a bit. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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Jisheng Zhang | f222a76952 |
ARM: 8585/1: cpuidle: fix !cpuidle_ops[cpu].init case during init
Let's assume cpuidle_ops exists but it doesn't implement the according init callback, current arm_cpuidle_init() will return success to its caller, but in fact it should return -EOPNOTSUPP. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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Russell King | e6978e4bf1 |
ARM: save and reset the address limit when entering an exception
When we enter an exception, the current address limit should not apply to the exception context: if the exception context wishes to access kernel space via the user accessors (eg, perf code), it must explicitly request such access. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> |
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Thomas Gleixner | 3d93f42d44 |
Merge branch 'clockevents/4.8' of http://git.linaro.org/people/daniel.lezcano/linux into timers/core
Pull the clockevents/clocksource tree from Daniel Lezcano: - Convert the clocksource-probe init functions to return a value in order to prepare the consolidation of the drivers using the DT. It is a big patchset but went through 01.org (kbuild bot), linux next and kernel-ci (continuous integration) (Daniel Lezcano) - Fix a bad error handling by returning the right value for cadence_ttc (Christophe Jaillet) - Fix typo in the Kconfig for the Samsung pwm (Alexandre Belloni) - Change functions to static for armada-370-xp and digicolor (Ben Dooks) - Add support for the rk3399 SoC timer by adding bindings and a slight change in the base address. Take the opportunity to add the DYNIRQ flag (Huang Tao) - Fix endian accessors for the Samsung pwm timer (Matthew Leach) - Add Oxford Semiconductor RPS Dual Timer driver (Neil Armstrong) - Add a kernel parameter to swich on/off the event stream feature of the arch arm timer (Will Deacon) |
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Shannon Zhao | 9b08aaa319 |
ARM: XEN: Move xen_early_init() before efi_init()
Move xen_early_init() before efi_init(), then when calling efi_init() could initialize Xen specific UEFI. Check if it runs on Xen hypervisor through the flat dts. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org> Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Reviewed-by: Julien Grall <julien.grall@arm.com> Tested-by: Julien Grall <julien.grall@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> |
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Matija Glavinic Pecotic | f6492164ec |
ARM: 8577/1: Fix Cortex-A15 798181 errata initialization
Current errata initialization doesn't take properly revision and REVIDR into account. Depending on the core revision, revidr bits should not be taken into account. Errata misleadingly declares r3p3 to be error-free, but this is not the case. Include rp3p3 in errata initialization. Here are possible fixes defined in revidr register for r2 and r3 [1,2]: r0p0-r2p1: No fixes applied r2p2,r2p3: REVIDR[4]: 798181 Moving a virtual page that is being accessed by an active process can lead to unexpected behavior REVIDR[9]: Not defined r2p4,r3p0,r3p1,r3p2: REVIDR[4]: 798181 Moving a virtual page that is being accessed by an active process can lead to unexpected behavior REVIDR[9]: 798181 Moving a virtual page that is being accessed by an active process can lead to unexpected behavior - This is an update to a previously released ECO. r3p3: REVIDR[4]: Reserved REVIDR[9]: 798181 Moving a virtual page that is being accessed by an active process can lead to unexpected behavior - This is an update to a previously released ECO. And here is proposed handling from the same document: * In r3p2 and earlier versions with REVIDR[4]= 0,the full workaround is required. * In r3p2 and earlier versions with REVIDR[4]=1, REVIDR[9]=0, only the portion of the workaround up to the end of step 6 is required. * In r3p2 and earlier versions with REVIDR[4]=1, REVIDR[9]=1, no workaround is required. * In r3p3, if REVIDR[9]=0, only the portion of the workaround up to the end of step 6 is required. * In r3p3, if REVIDR[9]=1, no workaround is required. These imply following: REVIDR[9] set -> No WA REVIDR[4] set, REVIDR[9] cleared -> Partial WA Both cleared -> Full WA Where certain bits should and should not be taken into account depending on whether they are defined for the revision. Although not explicitly mentioned in the errata note, REVIDR[9] set, with REVIDR[4] cleared is valid combination which requires no WA. This is confirmed by ARM support and errata will be updated. [1] ARM CortexTM-A15 MPCore - NEON Product revision r3 Software Developers Errata Notice ARM-EPM-028093 v20.0 Released [2] ARM CortexTM-A15 MPCore - NEON Product Revision r2 Software Developers Errata Notice ARM-EPM-028090 v19.3 Released Signed-off-by: Matija Glavinic Pecotic <matija.glavinic-pecotic.ext@nokia.com> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@nokia.com> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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Kees Cook | 14c4a533e0 |
ARM: 8583/1: mm: fix location of _etext
The _etext position is defined to be the end of the kernel text code, and should not include any part of the data segments. This interferes with things that might check memory ranges and expect executable code up to _etext. Just to be conservative, leave the kernel resource as it was, using __init_begin instead of _etext as the end mark. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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Daniel Lezcano | 177cf6e52b |
clocksources: Switch back to the clksrc table
All the clocksource drivers's init function are now converted to return an error code. CLOCKSOURCE_OF_DECLARE is no longer used as well as the clksrc-of table. Let's convert back the names: - CLOCKSOURCE_OF_DECLARE_RET => CLOCKSOURCE_OF_DECLARE - clksrc-of-ret => clksrc-of Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> For exynos_mct and samsung_pwm_timer: Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> For arch/arc: Acked-by: Vineet Gupta <vgupta@synopsys.com> For mediatek driver: Acked-by: Matthias Brugger <matthias.bgg@gmail.com> For the Rockchip-part Acked-by: Heiko Stuebner <heiko@sntech.de> For STi : Acked-by: Patrice Chotard <patrice.chotard@st.com> For the mps2-timer.c and versatile.c changes: Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> For the OXNAS part : Acked-by: Neil Armstrong <narmstrong@baylibre.com> For LPC32xx driver: Acked-by: Sylvain Lemieux <slemieux.tyco@gmail.com> For Broadcom Kona timer change: Acked-by: Ray Jui <ray.jui@broadcom.com> For Sun4i and Sun5i: Acked-by: Chen-Yu Tsai <wens@csie.org> For Meson6: Acked-by: Carlo Caione <carlo@caione.org> For Keystone: Acked-by: Santosh Shilimkar <ssantosh@kernel.org> For NPS: Acked-by: Noam Camus <noamca@mellanox.com> For bcm2835: Acked-by: Eric Anholt <eric@anholt.net> |
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Daniel Lezcano | dcbc0eddcb |
clocksource/drivers/smp_twd: Convert init function to return error
The init functions do not return any error. They behave as the following: - panic, thus leading to a kernel crash while another timer may work and make the system boot up correctly or - print an error and let the caller unaware if the state of the system Change that by converting the init functions to return an error conforming to the CLOCKSOURCE_OF_RET prototype. Proper error handling (rollback, errno value) will be changed later case by case, thus this change just return back an error or success in the init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> |
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Lorenzo Pieralisi | 313cb90285 |
ARM/PCI: Remove arch-specific pcibios_enable_device()
On systems with PCI_PROBE_ONLY set, we rely on BAR assignments from firmware. Previously we did not insert those resources into the resource tree, so we had to skip pci_enable_resources() because it fails if resources are not in the resource tree. Now that we *do* insert resources even when PCI_PROBE_ONLY is set, we no longer need the ARM-specific pcibios_enable_device(). Remove it so we use the generic version. [bhelgaas: changelog] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Will Deacon <will.deacon@arm.com> CC: Arnd Bergmann <arnd@arndb.de> CC: Russell King <linux@arm.linux.org.uk> |
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Lorenzo Pieralisi | b30742aa30 |
ARM/PCI: Claim bus resources on PCI_PROBE_ONLY set-ups
We claim PCI BAR and bridge window resources in pci_bus_assign_resources(), but when PCI_PROBE_ONLY is set, we treat those resources as immutable and don't call pci_bus_assign_resources(), so the resources aren't put in the resource tree. When the resources aren't in the tree, they don't show up in /proc/iomem, we can't detect conflicts, and we need special cases elsewhere for PCI_PROBE_ONLY or resources without a parent pointer. Claim all PCI BAR and window resources in the PCI_PROBE_ONLY case. If a PCI_PROBE_ONLY platform assigns conflicting resources, Linux can't fix the conflicts. Previously we didn't notice the conflicts, but now we will, which may expose new failures. [bhelgaas: changelog, add resource comment, remove size/assign comments] Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: Russell King <linux@armlinux.org.uk> |
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Kefeng Wang | 850bea2335 |
arm: Remove unnecessary of_platform_populate with default match table
After patch "of/platform: Add common method to populate default bus", it is possible for arch code to remove unnecessary callers of of_platform_populate with default match table. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Ray Jui <rjui@broadcom.com> Cc: Lee Jones <lee@kernel.org> Cc: Krzysztof Halasa <khalasa@piap.pl> Cc: Kukjin Kim <kgene@kernel.org> Cc: Rob Herring <robh@kernel.org> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Santosh Shilimkar <ssantosh@kernel.org> Cc: Roland Stigge <stigge@antcom.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Viresh Kumar <vireshk@kernel.org> Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com> Cc: Tony Prisk <linux@prisktech.co.nz> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Rob Herring <robh@kernel.org> |
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Kefeng Wang | bb8e15d604 |
of: iommu: make of_iommu_init() postcore_initcall_sync
The of_iommu_init() is called multiple times by arch code, make it postcore_initcall_sync, then we can drop relevant calls fully. Note, the IOMMUs should have a chance to perform some basic initialisation before we start adding masters to them. So postcore_initcall_sync is good choice, it ensures of_iommu_init() called before of_platform_populate. Acked-by: Rich Felker <dalias@libc.org> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Rich Felker <dalias@libc.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Rob Herring <robh@kernel.org> |
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Ben Dooks | 2374b063c3 |
ARM: 8581/1: add missing <asm/prom.h> to arch/arm/kernel/devtree.c
Fix the following warnings by including declarations from <asm/prom.h>: arch/arm/kernel/devtree.c:69:13: warning: symbol 'arm_dt_init_cpu_maps' was not declared. Should it be static? arch/arm/kernel/devtree.c:210:27: warning: symbol 'setup_machine_fdt' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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Linus Walleij | cb6f8344f8 |
ARM: 8556/1: on a generic DT system: do not touch l2x0
Set no bits, mask all bits in the AUX l2x0 register for the default DT ARM system: if anything needs to be modified, it should be done using DT bindings. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> |
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Russell King | 5fa9da5043 |
ARM: get rid of horrible *(unsigned int *)(regs + 1)
Get rid of the horrible "*(unsigned int *)(regs + 1)" to get at the parent context domain access register value, instead using the newly introduced svc_pt_regs structure. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> |
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Russell King | e6a9dc6129 |
ARM: introduce svc_pt_regs structure
Since the privileged mode pt_regs are an extended version of the saved userland pt_regs, introduce a new svc_pt_regs structure to describe this layout. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> |
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Russell King | 5745eef6b8 |
ARM: rename S_FRAME_SIZE to PT_REGS_SIZE
S_FRAME_SIZE is no longer the size of the kernel stack frame, so this name is misleading. It is the size of the kernel pt_regs structure. Name it so. Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> |
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Bjorn Helgaas | 1fa051018d |
ARM: Make PCI I/O space optional
For callers of pci_common_init_dev(), we previously always required a PCI I/O port resource. If the caller's ->setup() function had added an I/O resource, we used that; otherwise, we added a default 64K I/O port space for it. There are PCI host bridges that do not support I/O port space, and we should not add fictitious spaces for them. If a caller sets struct hw_pci.io_optional, assume it is responsible for adding any I/O port resource it desires, and do not add any default I/O port space. Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> |
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Olof Johansson | 58935f24a9 |
Fixes for omaps for v4.7-rc cycle:
- Fix dra7 for hardware issues limiting L4Per and L3init power domains to on state. Without this the devices may not work correctly after some time of use because of asymmetric aging. And related to this, let's also remove the unusable states. - Always select omap interconnect for am43x as otherwise the am43x only configurations will not boot properly. This can happen easily for any product kernels that leave out other SoCs to save memory. - Fix DSS PLL2 addresses that have gone unused for now - Select erratum 430973 for omap3, this is now safe to do and can save quite a bit of debugging time for people who may have left it out. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJXXm6cAAoJEBvUPslcq6VzgiAP/3j+Zvaks93gLf0Hc1sQ5ow+ UxQ3Gb3/gVGEh1OSb/c4MI800UBK1B0f6CqLK7zDFAuDHyUwmqJ27nrARfazoMPD DxRYZoEs897peB0/SWwDtHR+yje5UmIB0P31kRJ+t5nYwXBKvmvkWPFrOISxgI1Z yLc62tFoVy37IYfeH6pRNwMyJz9scl4qXjiBCHTmBQvgo4I3IPpvhFAWN5YMBZlz VwXDtmR9B/WlcRYel+RplYQrQrXVvaaT01wTPfejKHI9dyNQmbJQDWFMuuvdQKjE O7yjcgR6DdWjdDwCmIHLuc2FyrwW+wt1AY/5UXKGroxfW6Ct3JKuhUPPxsHfRMKX 2NnQtgUcUxiIAGrsEZFadUAIEedd+DBVK+aztn1reaaHR1R/pBnMcEnch9WRuAOQ srOaaL2Had/NG+QRE0psgck9ayzpDHw+LMd18BckCN+1mIiFBnXYZrCVUPrutgPP 5RbDWIeSVeAwbdaxPRqkXOcMGZ1MDRGoS+UBlTms+gWuSLjFj6sye0+Dao+68Ehz im/xhh0YCHgN0TvuvTla5BgLgOunlCNtXMNWyg801lDIvzOj/ngEQlasng9uzuri mfGf5w8ctub0Ileq4eU+rYb+bRDiDagjmiVBjbRmLWtgOUcsrNr+FX9sp5NDELmS oEa/VB8jNmI3aSv6OrNi =mQyc -----END PGP SIGNATURE----- Merge tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for omaps for v4.7-rc cycle: - Fix dra7 for hardware issues limiting L4Per and L3init power domains to on state. Without this the devices may not work correctly after some time of use because of asymmetric aging. And related to this, let's also remove the unusable states. - Always select omap interconnect for am43x as otherwise the am43x only configurations will not boot properly. This can happen easily for any product kernels that leave out other SoCs to save memory. - Fix DSS PLL2 addresses that have gone unused for now - Select erratum 430973 for omap3, this is now safe to do and can save quite a bit of debugging time for people who may have left it out. * tag 'omap-for-v4.7/fixes-powedomain' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_mem_ret ARM: OMAP: DRA7: powerdomain data: Remove unused pwrsts_logic_ret ARM: OMAP: DRA7: powerdomain data: Set L3init and L4per to ON ARM: OMAP2+: Select OMAP_INTERCONNECT for SOC_AM43XX ARM: dts: DRA74x: fix DSS PLL2 addresses ARM: OMAP2: Enable Errata 430973 for OMAP3 + Linux 4.7-rc2 Signed-off-by: Olof Johansson <olof@lixom.net> |
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Olof Johansson | 9503427e91 |
Fixes for omaps for v4.7-rc cycle:
- Two boot warning fixes from the RCU tree that should have gotten merged several weeks ago already but did not because of issues with who merges them. Paul has now split the RCU warning fixes into sets for various maintainers. - Fix ams-delta FIQ regression caused by omap1 sparse IRQ changes - Fix PM for omap3 boards using timer12 and gptimer, like the original beagleboard - Fix hangs on am437x-sk-evm by lowering the I2C bus speed -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJXY8wuAAoJEBvUPslcq6VzGBQQAJ6OIH0Gws19Wyi8IqnjMLJN npu+JXU0xP5bBZ+HbCVjyN8k32drhXdwDMQ+u1DvBYwUuyLIIRZPZF4aHb8fDfOC v1VqUzQRzj1FCh9MlkdqTedA180WCo5PCGlFOon0BmaZlv9WevEaTOYrEgyZPrmk quBnaE+baZfGxWBbDSN+OrGYobQRs7Eu8bel0gh628CDiajrbwlIyAcNdEn5C/Uu GHiEuIQcxb4b62mwAwh/t7el9ureirsS1b6mFB41puPmF/lYawI6YaCWIL48lbMd XsgKGnFDU6dgSO5QRx5PhP/7YP9FetS0U+g7iFhgjmArNCraNQYBY0ltMweOG0qe M8BPxDuCnhm1Q+PcjBORteN/PF47kcnBMpiJVVTmq5JRlXUqXecKpoScCt9HfPgy EJq+esLQNIuRw9cEwVPQBj80GyxFUVqL/Rzo7xjEwTDPYRQERGCB7V68iV25on3w 07dOVl/lSwe902ik580wnlGUq+J09wk+9hIKV2XwQAV/8mKaWMc3pA8rE/efLJoC buAsccxVcEsR3+uLSsU/P+fFm8nfBRmiOO9yIR4gez0BhbiDMc1zpwwhLkI+vTT4 D3PnuUdVeBvoGTNnpwqSURxajhaK0DSKTwhWnWGubYfXd3B48sW76rvKLO1FThgL qyaed06QFeWj8gV+VZLb =P0Vi -----END PGP SIGNATURE----- Merge tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Fixes for omaps for v4.7-rc cycle: - Two boot warning fixes from the RCU tree that should have gotten merged several weeks ago already but did not because of issues with who merges them. Paul has now split the RCU warning fixes into sets for various maintainers. - Fix ams-delta FIQ regression caused by omap1 sparse IRQ changes - Fix PM for omap3 boards using timer12 and gptimer, like the original beagleboard - Fix hangs on am437x-sk-evm by lowering the I2C bus speed * tag 'fixes-rcu-fiq-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: am437x-sk-evm: Reduce i2c0 bus speed for tps65218 ARM: OMAP2+: timer: add probe for clocksources ARM: OMAP1: fix ams-delta FIQ handler to work with sparse IRQ arm: Use _rcuidle for smp_cross_call() tracepoints arm: Use _rcuidle tracepoint to allow use from idle Signed-off-by: Olof Johansson <olof@lixom.net> |
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Paul E. McKenney | 7c64cc0531 |
arm: Use _rcuidle for smp_cross_call() tracepoints
Further testing with false negatives suppressed by commit
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Kees Cook | 0f3912fd93 |
arm/ptrace: run seccomp after ptrace
Close the hole where ptrace can change a syscall out from under seccomp. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Russell King <linux@armlinux.org.uk> Cc: linux-arm-kernel@lists.infradead.org |
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Andy Lutomirski | 2f275de5d1 |
seccomp: Add a seccomp_data parameter secure_computing()
Currently, if arch code wants to supply seccomp_data directly to seccomp (which is generally much faster than having seccomp do it using the syscall_get_xyz() API), it has to use the two-phase seccomp hooks. Add it to the easy hooks, too. Cc: linux-arch@vger.kernel.org Signed-off-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> |
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Linus Torvalds | e603330c86 |
Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fix from Russell King: "Just one fix to the ptrace code, spotted by Simon Marchi, where if a thread migrates to a different CPU and the VFP registers are changed through ptrace, the application doesn't see the updated VFP registers" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: fix PTRACE_SETVFPREGS on SMP systems |
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Russell King | e2dfb4b880 |
ARM: fix PTRACE_SETVFPREGS on SMP systems
PTRACE_SETVFPREGS fails to properly mark the VFP register set to be
reloaded, because it undoes one of the effects of vfp_flush_hwstate().
Specifically vfp_flush_hwstate() sets thread->vfpstate.hard.cpu to
an invalid CPU number, but vfp_set() overwrites this with the original
CPU number, thereby rendering the hardware state as apparently "valid",
even though the software state is more recent.
Fix this by reverting the previous change.
Cc: <stable@vger.kernel.org>
Fixes:
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Linus Torvalds | bdc6b758e4 |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar: "Mostly tooling and PMU driver fixes, but also a number of late updates such as the reworking of the call-chain size limiting logic to make call-graph recording more robust, plus tooling side changes for the new 'backwards ring-buffer' extension to the perf ring-buffer" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits) perf record: Read from backward ring buffer perf record: Rename variable to make code clear perf record: Prevent reading invalid data in record__mmap_read perf evlist: Add API to pause/resume perf trace: Use the ptr->name beautifier as default for "filename" args perf trace: Use the fd->name beautifier as default for "fd" args perf report: Add srcline_from/to branch sort keys perf evsel: Record fd into perf_mmap perf evsel: Add overwrite attribute and check write_backward perf tools: Set buildid dir under symfs when --symfs is provided perf trace: Only auto set call-graph to "dwarf" when syscalls are being traced perf annotate: Sort list of recognised instructions perf annotate: Fix identification of ARM blt and bls instructions perf tools: Fix usage of max_stack sysctl perf callchain: Stop validating callchains by the max_stack sysctl perf trace: Fix exit_group() formatting perf top: Use machine->kptr_restrict_warned perf trace: Warn when trying to resolve kernel addresses with kptr_restrict=1 perf machine: Do not bail out if not managing to read ref reloc symbol perf/x86/intel/p4: Trival indentation fix, remove space ... |
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Michal Hocko | 6904817607 |
vdso: make arch_setup_additional_pages wait for mmap_sem for write killable
most architectures are relying on mmap_sem for write in their arch_setup_additional_pages. If the waiting task gets killed by the oom killer it would block oom_reaper from asynchronous address space reclaim and reduce the chances of timely OOM resolving. Wait for the lock in the killable mode and return with EINTR if the task got killed while waiting. Signed-off-by: Michal Hocko <mhocko@suse.com> Acked-by: Andy Lutomirski <luto@amacapital.net> [x86 vdso] Acked-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Petr Mladek | 42a0bb3f71 |
printk/nmi: generic solution for safe printk in NMI
printk() takes some locks and could not be used a safe way in NMI
context.
The chance of a deadlock is real especially when printing stacks from
all CPUs. This particular problem has been addressed on x86 by the
commit
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Jiri Slaby | e64646946e |
exit_thread: accept a task parameter to be exited
We need to call exit_thread from copy_process in a fail path. So make it accept task_struct as a parameter. [v2] * s390: exit_thread_runtime_instr doesn't make sense to be called for non-current tasks. * arm: fix the comment in vfp_thread_copy * change 'me' to 'tsk' for task_struct * now we can change only archs that actually have exit_thread [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: "David S. Miller" <davem@davemloft.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Chris Metcalf <cmetcalf@mellanox.com> Cc: Chris Zankel <chris@zankel.net> Cc: David Howells <dhowells@redhat.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Jonas Bonn <jonas@southpole.se> Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Mikael Starvik <starvik@axis.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Rich Felker <dalias@libc.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Russell King <linux@arm.linux.org.uk> Cc: Steven Miao <realmz6@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds | a1c28b75a9 |
Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM updates from Russell King: "Changes included in this pull request: - revert pxa2xx-flash back to using ioremap_cached() and switch memremap() to use arch_memremap_wb() - remove pci=firmware command line argument handling - remove unnecessary arm_dma_set_mask() implementation, the generic implementation will do for ARM - removal of the ARM kallsyms "hack" to work around mode switching veneers and vectors located below PAGE_OFFSET - tidy up build system output a little - add L2 cache power management DT bindings - remove duplicated local_irq_disable() in reboot paths - handle AMBA primecell devices better at registration time with PM domains (needed for Samsung SoCs) - ARM specific preparation to support Keystone II kexec" * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8567/1: cache-uniphier: activate ways for secondary CPUs ARM: 8570/2: Documentation: devicetree: Add PL310 PM bindings ARM: 8569/1: pl2x0: Add OF control of cache power management ARM: 8568/1: reboot: remove duplicated local_irq_disable() ARM: 8566/1: drivers: amba: properly handle devices with power domains ARM: provide arm_has_idmap_alias() helper ARM: kexec: remove 512MB restriction on kexec crashdump ARM: provide improved virt_to_idmap() functionality ARM: kexec: fix crashkernel= handling ARM: 8557/1: specify install, zinstall, and uinstall as PHONY targets ARM: 8562/1: suppress "include/generated/mach-types.h is up to date." ARM: 8553/1: kallsyms: remove --page-offset command line option ARM: 8552/1: kallsyms: remove special lower address limit for CONFIG_ARM ARM: 8555/1: kallsyms: ignore ARM mode switching veneers ARM: 8548/1: dma-mapping: remove arm_dma_set_mask() ARM: 8554/1: kernel: pci: remove pci=firmware command line parameter handling ARM: memremap: implement arch_memremap_wb() memremap: add arch specific hook for MEMREMAP_WB mappings mtd: pxa2xx-flash: switch back from memremap to ioremap_cached ARM: reintroduce ioremap_cached() for creating cached I/O mappings |
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Ingo Molnar | 21f77d231f |
perf/core improvements and fixes:
User visible: - Honour the kernel.perf_event_max_stack knob more precisely by not counting PERF_CONTEXT_{KERNEL,USER} when deciding when to stop adding entries to the perf_sample->ip_callchain[] array (Arnaldo Carvalho de Melo) - Fix identation of 'stalled-backend-cycles' in 'perf stat' (Namhyung Kim) - Update runtime using 'cpu-clock' event in 'perf stat' (Namhyung Kim) - Use 'cpu-clock' for cpu targets in 'perf stat' (Namhyung Kim) - Avoid fractional digits for integer scales in 'perf stat' (Andi Kleen) - Store vdso buildid unconditionally, as it appears in callchains and we're not checking those when creating the build-id table, so we end up not being able to resolve VDSO symbols when doing analysis on a different machine than the one where recording was done, possibly of a different arch even (arm -> x86_64) (He Kuang) Infrastructure: - Generalize max_stack sysctl handler, will be used for configuring multiple kernel knobs related to callchains (Arnaldo Carvalho de Melo) Cleanups: - Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE, to stop using open coded strings (Masami Hiramatsu) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABCAAGBQJXOn7eAAoJENZQFvNTUqpAsOAP/3f/XJekPQAnMcKRBp2noCuj nRu1kBltVJyP8iOU5PKSJwel4F9ykNNMl+/rzzxHDo13IM8uc+HnZOJZ6e9mJIJ1 xqjdqM4EDlYYoFApJzCjTK6CMlevCazosdQT1bbmMDYVPc2uQR/GnutFrzqf/Plg hEougIGtfrdy85g95CRdxpy2yMwDK4EwsiDRm9ib1hnuamQZl97buWemBVqSJmLY p82E2aMU5Fv5+B8AO4I7V88ZmgpmryjxpM+LjffgNUDSKsSHrlG4NiQ3znV1bgst Rc++w78+qxoIozOu6/IX8eSI2L/1eyM/yQ6Qre0KuvYXCl+NopTAYSSJlaA4tyHF c55z7HucuyATN3PrFRHlbWUT/RMIVC0j0lnZOc7SJLl90hJQ+nv0iZcbYwMbeHu1 3LGlcd9jDwQYiClbaT9ATxZJ8B9An0/k/HJdatbAHN0wRomP2Ozz/qD2nmEbUwpV sCyLOo/LJkvVkuUjSg6ZiOArNIk4iTSPSAUV+SAL6YOEOZMAX5ISUJQ174+zFC9a gqtVsCXvwLIsndXb8ys1r9/fit/MUci0OzKX3SG1K765+E4Bk23KcAgMNbM/a7lp ZmHDXMC+yBYcnYNnaxkp7c55CWUlKGOeR4e+KmB99KoeIleYgPhD2UM5beo61TmN yUEPtiiFiZmTRkiAu83R =7OdF -----END PGP SIGNATURE----- Merge tag 'perf-core-for-mingo-20160516' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: User visible changes: - Honour the kernel.perf_event_max_stack knob more precisely by not counting PERF_CONTEXT_{KERNEL,USER} when deciding when to stop adding entries to the perf_sample->ip_callchain[] array (Arnaldo Carvalho de Melo) - Fix identation of 'stalled-backend-cycles' in 'perf stat' (Namhyung Kim) - Update runtime using 'cpu-clock' event in 'perf stat' (Namhyung Kim) - Use 'cpu-clock' for cpu targets in 'perf stat' (Namhyung Kim) - Avoid fractional digits for integer scales in 'perf stat' (Andi Kleen) - Store vdso buildid unconditionally, as it appears in callchains and we're not checking those when creating the build-id table, so we end up not being able to resolve VDSO symbols when doing analysis on a different machine than the one where recording was done, possibly of a different arch even (arm -> x86_64) (He Kuang) Infrastructure changes: - Generalize max_stack sysctl handler, will be used for configuring multiple kernel knobs related to callchains (Arnaldo Carvalho de Melo) Cleanups: - Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE, to stop using open coded strings (Masami Hiramatsu) Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Russell King | 5632a9fbcd | Merge branches 'amba', 'devel-stable', 'kexec-for-next' and 'misc' into for-linus | |
Linus Torvalds | d57d394319 |
Power management material for v4.7-rc1
- New cpufreq "schedutil" governor (making decisions based on CPU utilization information provided by the scheduler and capable of switching CPU frequencies right away if the underlying driver supports that) and support for fast frequency switching in the acpi-cpufreq driver (Rafael Wysocki). - Consolidation of CPU frequency management on ARM platforms allowing them to get rid of some platform-specific boilerplate code if they are going to use the cpufreq-dt driver (Viresh Kumar, Finley Xiao, Marc Gonzalez). - Support for ACPI _PPC and CPU frequency limits in the intel_pstate driver (Srinivas Pandruvada). - Fixes and cleanups in the cpufreq core and generic governor code (Rafael Wysocki, Sai Gurrappadi). - intel_pstate driver optimizations and cleanups (Rafael Wysocki, Philippe Longepe, Chen Yu, Joe Perches). - cpufreq powernv driver fixes and cleanups (Akshay Adiga, Shilpasri Bhat). - cpufreq qoriq driver fixes and cleanups (Jia Hongtao). - ACPI cpufreq driver cleanups (Viresh Kumar). - Assorted cpufreq driver updates (Ashwin Chaugule, Geliang Tang, Javier Martinez Canillas, Paul Gortmaker, Sudeep Holla). - Assorted cpufreq fixes and cleanups (Joe Perches, Arnd Bergmann). - Fixes and cleanups in the OPP (Operating Performance Points) framework, mostly related to OPP sharing, and reorganization of OF-dependent code in it (Viresh Kumar, Arnd Bergmann, Sudeep Holla). - New "passive" governor for devfreq (for SoC subsystems that will rely on someone else for the management of their power resources) and consolidation of devfreq support for Exynos platforms, coding style and typo fixes for devfreq (Chanwoo Choi, MyungJoo Ham). - PM core fixes and cleanups, mostly to make it work better with the generic power domains (genpd) framework, and updates for that framework (Ulf Hansson, Thierry Reding, Colin Ian King). - Intel Broxton support for the intel_idle driver (Len Brown). - cpuidle core optimization and fix (Daniel Lezcano, Dave Gerlach). - ARM cpuidle cleanups (Jisheng Zhang). - Intel Kabylake support for the RAPL power capping driver (Jacob Pan). - AVS (Adaptive Voltage Switching) rockchip-io driver update (Heiko Stuebner). - Updates for the cpupower tool (Arjun Sreedharan, Colin Ian King, Mattia Dongili, Thomas Renninger). / -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABCAAGBQJXOjLgAAoJEILEb/54YlRxfn0P/RbSPpNlUNBIE8DFrdD9jRdJ TIpZ7uiHi9tU1ZF17UBbb/SwuWfYVnVmiorZGRfFOtGaoqh0HFZ/nplDz99rK0ku vW2OnbojMQEUMU3IcUT1y4BsSl0H23f7ZOKrdprALeWxDQmbgnYjrE6vkX6hRtld A8eeZvIEJ5CzV8S+9aOOOpojW2yXk5dYGdZ7gpQdoM0n7zVLyPnNucJoha3BYmOG FwKEIe05RpIhfLfGT0CXIRcOzwAZ6ZWKgOrXUrx/AadPbvu/TP9zkI0djYI8ukyv z2oiO/GExoeGVuUzvy8vY5SiH4NQvViftFzMZepcsmjxmVglohMPRL8VLjZIBckk DDcqH9e0OQI20jjYT1vIf5+JWBvLxuQfGtyzI0S+sE/elB1zI/3O8p+8N2CuF5n+ my2dawIewnHI/0AdSpJ+K7DVrfwPHAX19axtPX3dJSLh2OuHCPNlAtbxRGAriBfH Zv9NETxlrch69o2AD4K54DErWV1FsYLznzK5Zms6MC2Ispbb+oiYpacTlZblznvb H5U2SSNlA5Niir3vVJ01nKRtzxlWoi67CQxbYrGhlaR0nTTxf9HqWgcSiTZrn7Pv hs+LA2aUfMf3JGjStdORS7S8biQSid5vypfkglpWLZBKHNC9BqqZd9gSM+jF3FVh ps4mMM4UXY4hnoFDkMBI =WM89 -----END PGP SIGNATURE----- Merge tag 'pm-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "The majority of changes go into the cpufreq subsystem this time. To me, quite obviously, the biggest ticket item is the new "schedutil" governor. Interestingly enough, it's the first new cpufreq governor since the beginning of the git era (except for some out-of-the-tree ones). There are two main differences between it and the existing governors. First, it uses the information provided by the scheduler directly for making its decisions, so it doesn't have to track anything by itself. Second, it can invoke drivers (supporting that feature) to adjust CPU performance right away without having to spawn work items to be executed in process context or similar. Currently, the acpi-cpufreq driver is the only one supporting that mode of operation, but then it is used on a large number of systems. The "schedutil" governor as included here is very simple and mostly regarded as a foundation for future work on the integration of the scheduler with CPU power management (in fact, there is work in progress on top of it already). Nevertheless it works and the preliminary results obtained with it are encouraging. There also is some consolidation of CPU frequency management for ARM platforms that can add their machine IDs the the new stub dt-platdev driver now and that will take care of creating the requisite platform device for cpufreq-dt, so it is not necessary to do that in platform code any more. Several ARM platforms are switched over to using this generic mechanism. In addition to that, the intel_pstate driver is now going to respect CPU frequency limits set by the platform firmware (or a BMC) and provided via the ACPI _PPC object. The devfreq subsystem is getting a new "passive" governor for SoCs subsystems that will depend on somebody else to manage their voltage rails and its support for Samsung Exynos SoCs is consolidated. The rest is support for new hardware (Intel Broxton support in intel_idle for one example), bug fixes, optimizations and cleanups in a number of places. Specifics: - New cpufreq "schedutil" governor (making decisions based on CPU utilization information provided by the scheduler and capable of switching CPU frequencies right away if the underlying driver supports that) and support for fast frequency switching in the acpi-cpufreq driver (Rafael Wysocki) - Consolidation of CPU frequency management on ARM platforms allowing them to get rid of some platform-specific boilerplate code if they are going to use the cpufreq-dt driver (Viresh Kumar, Finley Xiao, Marc Gonzalez) - Support for ACPI _PPC and CPU frequency limits in the intel_pstate driver (Srinivas Pandruvada) - Fixes and cleanups in the cpufreq core and generic governor code (Rafael Wysocki, Sai Gurrappadi) - intel_pstate driver optimizations and cleanups (Rafael Wysocki, Philippe Longepe, Chen Yu, Joe Perches) - cpufreq powernv driver fixes and cleanups (Akshay Adiga, Shilpasri Bhat) - cpufreq qoriq driver fixes and cleanups (Jia Hongtao) - ACPI cpufreq driver cleanups (Viresh Kumar) - Assorted cpufreq driver updates (Ashwin Chaugule, Geliang Tang, Javier Martinez Canillas, Paul Gortmaker, Sudeep Holla) - Assorted cpufreq fixes and cleanups (Joe Perches, Arnd Bergmann) - Fixes and cleanups in the OPP (Operating Performance Points) framework, mostly related to OPP sharing, and reorganization of OF-dependent code in it (Viresh Kumar, Arnd Bergmann, Sudeep Holla) - New "passive" governor for devfreq (for SoC subsystems that will rely on someone else for the management of their power resources) and consolidation of devfreq support for Exynos platforms, coding style and typo fixes for devfreq (Chanwoo Choi, MyungJoo Ham) - PM core fixes and cleanups, mostly to make it work better with the generic power domains (genpd) framework, and updates for that framework (Ulf Hansson, Thierry Reding, Colin Ian King) - Intel Broxton support for the intel_idle driver (Len Brown) - cpuidle core optimization and fix (Daniel Lezcano, Dave Gerlach) - ARM cpuidle cleanups (Jisheng Zhang) - Intel Kabylake support for the RAPL power capping driver (Jacob Pan) - AVS (Adaptive Voltage Switching) rockchip-io driver update (Heiko Stuebner) - Updates for the cpupower tool (Arjun Sreedharan, Colin Ian King, Mattia Dongili, Thomas Renninger)" * tag 'pm-4.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (112 commits) intel_pstate: Clean up get_target_pstate_use_performance() intel_pstate: Use sample.core_avg_perf in get_avg_pstate() intel_pstate: Clarify average performance computation intel_pstate: Avoid unnecessary synchronize_sched() during initialization cpufreq: schedutil: Make default depend on CONFIG_SMP cpufreq: powernv: del_timer_sync when global and local pstate are equal cpufreq: powernv: Move smp_call_function_any() out of irq safe block intel_pstate: Clean up intel_pstate_get() cpufreq: schedutil: Make it depend on CONFIG_SMP cpufreq: governor: Fix handling of special cases in dbs_update() PM / OPP: Move CONFIG_OF dependent code in a separate file cpufreq: intel_pstate: Ignore _PPC processing under HWP cpufreq: arm_big_little: use generic OPP functions for {init, free}_opp_table PM / OPP: add non-OF versions of dev_pm_opp_{cpumask_, }remove_table cpufreq: tango: Use generic platdev driver PM / OPP: pass cpumask by reference cpufreq: Fix GOV_LIMITS handling for the userspace governor cpupower: fix potential memory leak PM / devfreq: style/typo fixes PM / devfreq: exynos: Add the detailed correlation for Exynos5422 bus .. |
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Arnaldo Carvalho de Melo | 3b1fff0803 |
perf core: Add a 'nr' field to perf_event_callchain_context
We will use it to count how many addresses are in the entry->ip[] array, excluding PERF_CONTEXT_{KERNEL,USER,etc} entries, so that we can really return the number of entries specified by the user via the relevant sysctl, kernel.perf_event_max_contexts, or via the per event perf_event_attr.sample_max_stack knob. This way we keep the perf_sample->ip_callchain->nr meaning, that is the number of entries, be it real addresses or PERF_CONTEXT_ entries, while honouring the max_stack knobs, i.e. the end result will be max_stack entries if we have at least that many entries in a given stack trace. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/n/tip-s8teto51tdqvlfhefndtat9r@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |