linux/arch/arm/kernel/setup.c, branch v4.9

ARM: 8604/1: V7M: Add support for reading the CTR with read_cpuid_cachetype()

2016-09-06T14:51:07Z

With the addition of caches to the V7M Architecture a new Cache Type Register (CTR) is defined at 0xE000ED7C. This register serves the same purpose as the V7A/R version and accessed via the read_cpuid_cachetype. Signed-off-by: Jonathan Austin Signed-off-by: Vladimir Murzin Tested-by: Andras Szemzo Tested-by: Joachim Eastwood Tested-by: Alexandre TORGUE Signed-off-by: Russell King

ARM: 8602/1: factor out CSSELR/CCSIDR operations that use cp15 directly

2016-09-06T14:51:06Z

Currently we use raw cp15 operations to access the cache setup data. This patch abstracts the CSSELR and CCSIDR accessors out to a header so that the implementation for them can be switched out as we do with other cpu/cachetype operations. Signed-off-by: Jonathan Austin Signed-off-by: Vladimir Murzin Tested-by: Andras Szemzo Tested-by: Joachim Eastwood Tested-by: Alexandre TORGUE Signed-off-by: Russell King

ARM: 8595/2: apply more __ro_after_init

2016-08-12T15:47:06Z

Guided by grsecurity's analogous __read_only markings in arch/arm, this applies several uses of __ro_after_init to structures that are only updated during __init. Signed-off-by: Kees Cook Signed-off-by: Russell King

ARM: kexec: advertise location of bootable RAM

2016-08-02T23:35:25Z

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 Reviewed-by: Pratyush Anand Cc: Baoquan He Cc: Keerthy Cc: Vitaly Andrianov Cc: Eric Biederman Cc: Dave Young Cc: Vivek Goyal Cc: Simon Horman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

ARM: kdump: advertise boot aliased crash kernel resource

2016-08-02T23:35:25Z

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 Cc: Baoquan He Cc: Keerthy Cc: Pratyush Anand Cc: Vitaly Andrianov Cc: Eric Biederman Cc: Dave Young Cc: Vivek Goyal Cc: Simon Horman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge tag 'devicetree-for-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2016-07-30T18:32:01Z

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 ...

Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

2016-07-29T20:03:49Z

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 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 ...

ARM: XEN: Move xen_early_init() before efi_init()

2016-07-06T09:34:45Z

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 Signed-off-by: Shannon Zhao Reviewed-by: Stefano Stabellini Reviewed-by: Julien Grall Tested-by: Julien Grall Acked-by: Catalin Marinas

ARM: 8583/1: mm: fix location of _etext

2016-07-02T10:01:30Z

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 Signed-off-by: Russell King

arm: Remove unnecessary of_platform_populate with default match table

2016-06-23T19:58:37Z

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 Cc: Nicolas Ferre Cc: Ray Jui Cc: Lee Jones Cc: Krzysztof Halasa Cc: Kukjin Kim Cc: Rob Herring Cc: Shawn Guo Cc: Santosh Shilimkar Cc: Roland Stigge Cc: Jason Cooper Cc: Haojian Zhuang Cc: Heiko Stuebner Cc: Viresh Kumar Cc: Shiraz Hashim Cc: Tony Prisk Cc: Arnd Bergmann Cc: Russell King Signed-off-by: Kefeng Wang Signed-off-by: Rob Herring