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2016-07-14Merge tag 'tegra-for-4.8-arm-soc' of ↵Arnd Bergmann9-22/+33
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/cleanup Merge "ARM: tegra: Core SoC changes for v4.8-rc1" into next/cleanup: Some cleanups to eliminate sparse warnings and a section mismatch. * tag 'tegra-for-4.8-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: tegra: Remove board_init_funcs array ARM: tegra: pm: Add tegra_cpu_do_idle() prototype ARM: tegra: irq: Add missing irq.h include ARM: tegra: cpuidle: Add missing cpuidle.h include ARM: tegra: hotplug: Include missing common.h
2016-07-14ARM: s3c64xx: avoid warning about 'struct device_node'Arnd Bergmann1-0/+1
The change to simplify of_platform_populate() had an unintended side-effect of introducing a build warning on s3c64xx: In file included from arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c:18:0: arch/arm/mach-s3c64xx/common.h:27:30: error: 'struct device_node' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] This adds a forward-declaration for the structure name in the header to avoid the warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 850bea2335e4 ("arm: Remove unnecessary of_platform_populate with default match table") Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-07-11ARM: tegra: Remove board_init_funcs arrayArnd Bergmann1-21/+3
In a configuration that enables CONFIG_UBSAN_SANITIZE_ALL, I am getting a section mismatch warning for tegra20: WARNING: arch/arm/mach-tegra/built-in.o(.data+0x6e0): Section mismatch in reference from the variable board_init_funcs to the function .init.text:paz00_init() The array is no longer useful here since there is only one entry, so we can simply call the function directly after checking of_machine_is_compatible(). This fixes the section mismatch and is easier to read. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-07-07ARM: iop: Fix indentationJungseung Lee1-2/+2
Fix indentation in iop3xx_std_desc Signed-off-by: Jungseung Lee <js07.lee@samsung.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2016-07-05Merge tag 'imx-cleanup-4.8' of ↵Olof Johansson25-315/+88
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/cleanup The i.MX cleanup for 4.8: - A series from Arnd to clean up cpu_is_mx*() from i.MX platform - A series from Andrey to clean up i.MX L2-cache code by using core support as much as possible - Remove the orphan header eukrea-baseboards.h from i.MX platform - Remove boilerplate code from TZIC driver by using IRQCHIP_DECLARE * tag 'imx-cleanup-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: imx: remove cpu_is_mx*() ARM: imx: remove last call to cpu_is_mx5* ARM: imx: rework mx27_pm_init() call ARM: imx: deconstruct mx3_idle ARM: imx: deconstruct mxc_rnga initialization ARM: imx: remove cpu_is_mx1 check ARM: i.MX: Do not explicitly call l2x0_of_init() ARM: i.MX: system.c: Tweak prefetch settings for performance ARM: i.MX: system.c: Replace magic numbers ARM: i.MX: system.c: Remove redundant errata 752271 code ARM: i.MX: system.c: Convert goto to if statement ARM: imx: Use IRQCHIP_DECLARE for TZIC ARM: imx: Remove orphan header Signed-off-by: Olof Johansson <olof@lixom.net>
2016-07-04Merge tag 'mvebu-cleanup-4.8-1' of git://git.infradead.org/linux-mvebu into ↵Olof Johansson8-6/+11
next/cleanup mvebu cleanup for 4.8 (part 1) Various warning fixes * tag 'mvebu-cleanup-4.8-1' of git://git.infradead.org/linux-mvebu: ARM: Kirkwood: fix kirkwood_pm_init() declaration/type ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static ARM: orion5x: make orion5x_legacy_handle_irq static mvebu: add definition for coherency_base mvebu: make mvebu_armada375_smp_wa_init() static mvebu: fix missing include of common.h in cpu-reset.c mvebu: fix missing include of common.h in pm.c mvebu: fix missing includes in pmsu.c Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-28ARM: imx: remove cpu_is_mx*()Arnd Bergmann2-103/+0
The mxc_cpu_type and cpu_is_mx() logic is largely unused, and the few remaining users were easy to convert into simpler code. Now that they are gone, we can remove all those macros as well. The related cpu_is_imx6*() set of function unfortunately is harder to remove, so those are staying around for now. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-28ARM: imx: remove last call to cpu_is_mx5*Arnd Bergmann1-8/+0
The check for cpu_is_mx51/cpu_is_mx53() in mx51_revision()/mx53_revision() is just a safety precaution, but there are only two callers of this are using it only on the correct CPUs, and none of the other respective functions have this extra check. Removing these lets us kill off the cpu_is_* functions. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-28ARM: imx: rework mx27_pm_init() callArnd Bergmann4-7/+5
mx27_pm_init() uses its own initcall, unlike all of the other functions like it. Replacing the initcall with a .init_late() callback makes imx27 more like the others and lets us remove the last caller of cpu_is_mx27(). Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-28ARM: imx: deconstruct mx3_idleArnd Bergmann3-44/+24
The imx31 and imx35 idle functions are almost the same, but we currently have to check the cpu type every time. This can be simplified by moving the logic from mx3_cpu_lp_set() into two separate idle functions, removing the last user of cpu_is_mx35. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-28ARM: imx: deconstruct mxc_rnga initializationArnd Bergmann5-61/+18
The rnga platform device is initialized for all imx31 machines from its own initcall, but is never initialized anywhere else. This moves the platform device creation into both the imx31 dt and non-dt machine init sequences, which has basically the exact same effect as before, but makes it more obvious what is going on, while reducing the amount of code and removing the last user of cpu_is_mx31(). Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-28ARM: imx: remove cpu_is_mx1 checkArnd Bergmann3-8/+11
There is only one call site for this, and it's easily replaced by initializing the reset value at boot time. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-21ARM: i.MX: Do not explicitly call l2x0_of_init()Andrey Smirnov5-15/+13
There's no need to explicitly call l2x0_of_init() since it will be called as a part of init_IRQ() (see arch/arm/kernel/irq.c for details). This way we can simplify imx_init_l2cache() and ditch the call to it on i.MX35 (which does not claim compatibility with "arm,pl310-cache") alltogether. Acked-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-21ARM: i.MX: system.c: Tweak prefetch settings for performanceAndrey Smirnov1-2/+6
Update Prefetch Control Register settings to match that of Freescale's Linux tree. As the commit e3addf1b773964eac7f797e8538c69481be4279c states (author Nitin Garg): "... set Prefetch offset to 15, since it improves memcpy performance by 35%. Don't enable Incr double Linefill enable since it adversely affects memcpy performance by about 32MB/s and reads by 90MB/s. Tested with 4K to 16MB sized src and dst aligned buffer..." Those results are also corroborated by our own testing. Acked-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Chris Healy <cphealy@gmail.com> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-21ARM: i.MX: system.c: Replace magic numbersAndrey Smirnov1-1/+4
Replace magic numbers used to form L310 Prefetch Control Register value. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-21ARM: i.MX: system.c: Remove redundant errata 752271 codeAndrey Smirnov1-11/+0
Applying a fix for ARM errata 752271 would already be taken care by a call to a 'fixup' hook as a part of l2x0_of_init() -> __l2c_init() call chain. Moreso the code in 'fixup' function would do that based on the PL310's revsion information, whereas removed code does so based on SoC version which does not work very well on i.MX6Q+ which identifies itself as i.MX6Q as well but is not affected by 752271. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-21ARM: i.MX: system.c: Convert goto to if statementAndrey Smirnov1-19/+17
Using goto here doesn't bring any advantages and only makes the code flow less clear. No functional changes. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-20Merge tag 'vexpress-fixes-4.8' of ↵Olof Johansson3-3/+7
git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into next/cleanup ARMv7 VExpress fixes for v4.8 Few fixes to remove build warnings with W=1 * tag 'vexpress-fixes-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: power: vexpress: make dev_attr_active static ARM: vexpress/spc: fix missing include of spc.h ARM: versatile: fix missing <plat/platsmp.h> include ARM: vexpress/hotplug: fix missing core.h include ARM: vexpress/spc: remove unused variable perf_stat_reg Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-16ARM: Kirkwood: fix kirkwood_pm_init() declaration/typeBen Dooks1-2/+2
The kirkwood-pm.c was missing the include of kirkwood-pm.h to define the kirkwood_pm_init() function. However once this is included, the types do not match. Fixup the include, and then the prototype to avoid the following warning: arch/arm/mach-mvebu/kirkwood-pm.c:69:12: warning: symbol 'kirkwood_pm_init' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() staticBen Dooks1-1/+1
The kirkwood_disable_mbus_error_propagation is not exported or declared elsewhere, so make it static to avoid the following warning: arch/arm/mach-mvebu/kirkwood.c:153:6: warning: symbol 'kirkwood_disable_mbus_error_propagation' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16ARM: orion5x: make orion5x_legacy_handle_irq staticBen Dooks1-1/+1
The orion5x_legacy_handle_irq() is not used or declared outside of irq.c so make it static to avoid the following warning: arch/arm/mach-orion5x/irq.c:30:23: warning: symbol 'orion5x_legacy_handle_irq' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Acked-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: add definition for coherency_baseBen Dooks1-0/+1
Fix the warning that coherency_base is not defined by adding it to coherency.h (it is only used in the coherency_ll.S): arch/arm/mach-mvebu/coherency.c:41:14: warning: symbol 'coherency_base' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: make mvebu_armada375_smp_wa_init() staticBen Dooks1-1/+1
The mvebu_armada375_smp_wa_init() is not exported or declared anywhere, so make it static to fix the following warning: arch/arm/mach-mvebu/system-controller.c:130:6: warning: symbol 'mvebu_armada375_smp_wa_init' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: fix missing include of common.h in cpu-reset.cBen Dooks1-0/+2
The mvebu_cpu_reset_deassert() is missing the definition for it, so include common.h where it is defined to fix the warning: arch/arm/mach-mvebu/cpu-reset.c:25:5: warning: symbol 'mvebu_cpu_reset_deassert' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: fix missing include of common.h in pm.cBen Dooks1-0/+1
The mvebu_pm_suspend_init() is missing a definition, so include common.h which defines this function into pm.c to fix the following warning: arch/arm/mach-mvebu/pm.c:235:12: warning: symbol 'mvebu_pm_suspend_init' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-16mvebu: fix missing includes in pmsu.cBen Dooks1-1/+2
The file is missing definitions for some functions due to not including two header files. Fix the following warnings by including "pmsu.h" and <linux/mvebu-pmsu.h> in pmsu.c: arch/arm/mach-mvebu/pmsu.c:127:5: warning: symbol 'mvebu_setup_boot_addr_wa' was not declared. Should it be static? arch/arm/mach-mvebu/pmsu.c:267:5: warning: symbol 'armada_370_xp_pmsu_idle_enter' was not declared. Should it be static? arch/arm/mach-mvebu/pmsu.c:313:5: warning: symbol 'armada_38x_do_cpu_suspend' was not declared. Should it be static? arch/arm/mach-mvebu/pmsu.c:340:6: warning: symbol 'mvebu_v7_pmsu_idle_exit' was not declared. Should it be static? arch/arm/mach-mvebu/pmsu.c:570:5: warning: symbol 'mvebu_pmsu_dfs_request' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
2016-06-13Merge tag 'samsung-soc-4.8' of ↵Olof Johansson13-11/+14
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/cleanup Samsung mach/soc update for v4.8: 1. Minor cleanups. * tag 'samsung-soc-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: s3c24xx: Sort cpufreq tables ARM: SAMSUNG: Fix typos Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-13ARM: vexpress/spc: fix missing include of spc.hBen Dooks1-0/+2
Fix missing function prototypes found in spc.h by including the file to remove the following warnings: arch/arm/mach-vexpress/spc.c:131:6: warning: symbol 've_spc_global_wakeup_irq' was not declared. Should it be static? arch/arm/mach-vexpress/spc.c:156:6: warning: symbol 've_spc_cpu_wakeup_irq' was not declared. Should it be static? arch/arm/mach-vexpress/spc.c:185:6: warning: symbol 've_spc_set_resume_addr' was not declared. Should it be static? arch/arm/mach-vexpress/spc.c:210:6: warning: symbol 've_spc_powerdown' was not declared. Should it be static? arch/arm/mach-vexpress/spc.c:240:5: warning: symbol 've_spc_cpu_in_wfi' was not declared. Should it be static? arch/arm/mach-vexpress/spc.c:450:12: warning: symbol 've_spc_init' was not declared. Should it be static? Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2016-06-13ARM: versatile: fix missing <plat/platsmp.h> includeBen Dooks1-0/+2
Fix two missing function declarations by including the <plat/platsmp.h> file where they are defined. Fixes: arch/arm/plat-versatile/platsmp.c:35:6: warning: symbol 'versatile_secondary_init' was not declared. Should it be static? arch/arm/plat-versatile/platsmp.c:50:5: warning: symbol 'versatile_boot_secondary' was not declared. Should it be static? Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2016-06-13ARM: vexpress/hotplug: fix missing core.h includeBen Dooks1-0/+2
Fix the missing declaration of vexpress_cpu_die() by including core.h where it is defined. Fixes: arch/arm/mach-vexpress/hotplug.c:88:6: warning: symbol 'vexpress_cpu_die' was not declared. Should it be static? Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2016-06-13ARM: vexpress/spc: remove unused variable perf_stat_regSudeep Holla1-3/+1
The variable 'perf_stat_reg' in ve_spc_set_performance is assigned a value but that is never used. So let's remove the variable 'perf_stat_reg' Reported-by: David Binderman <dcb314@hotmail.com> Cc: Liviu Dudau <liviu.dudau@arm.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
2016-06-12ARM: imx: Use IRQCHIP_DECLARE for TZICAlexander Shiyan5-9/+5
Remove boilerplate code by using IRQCHIP_DECLARE macro. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-12ARM: imx: Remove orphan headerAlexander Shiyan1-42/+0
The header eukrea-baseboards.h is not used, remove it. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-06-10ARM: tegra: pm: Add tegra_cpu_do_idle() prototypeThierry Reding1-1/+1
When building with W=1 this function is flagged as not having a prototype defined. Add the prototype to avoid a build warning. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-10ARM: tegra: irq: Add missing irq.h includeThierry Reding1-0/+1
Some of the functions implemented are flagged as not having a prototype defined when building with W=1. Include the header to avoid these build warnings. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-10ARM: tegra: cpuidle: Add missing cpuidle.h includeThierry Reding4-0/+5
Some of the functions implemented are flagged as not having a prototype defined when building with W=1. Include the header to avoid these build warnings and add a prototype as well as a dummy implementation for the tegra_cpuidle_pcie_irqs_in_use() function. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-10ARM: tegra: hotplug: Include missing common.hThierry Reding2-0/+23
Some of the functions implemented are flagged as not having a prototype defined when building with W=1. Include the header to avoid these build warnings. Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-06-03ARM: do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIBLinus Walleij33-55/+52
This replaces: - "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB" as this can now be selected directly. - "select ARCH_WANT_OPTIONAL_GPIOLIB" with no dependency: GPIOLIB is now selectable by everyone, so we need not declare our intent to select it. When ordering the symbols the following rationale was used: if the selects were in alphabetical order, I moved select GPIOLIB to be in alphabetical order, but if the selects were not maintained in alphabetical order, I just replaced "select ARCH_REQUIRE_GPIOLIB" with "select GPIOLIB". Cc: Michael Büsch <m@bues.ch> Cc: arm@kernel.org Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-03ARM: uniphier: drop code for old DT bindingMasahiro Yamada1-13/+5
Commit 307d40c56b0c ("ARM: uniphier: rework SMP code to support new System Bus binding") added a new DT binding for SMP code, but still kept old code for the backward compatibility. Linux 4.6 was out with both bindings supported, so it should not hurt to drop the old code now. Moreover, the mainline code are currently not used for any of our products, so this change has no impact on our customers in any way. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2016-06-03ARM: s3c24xx: Sort cpufreq tablesViresh Kumar3-1/+4
Some later changes in cpufreq core require these tables to be sorted based on ascending order of their frequencies. There was only one offender. Fix it and add comments over the arrays. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-30ARM: SAMSUNG: Fix typosAndrea Gelmini10-10/+10
Fix some language typos in comments. Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-28Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds58-248/+353
Pull more MIPS updates from Ralf Baechle: "This is the secondnd batch of MIPS patches for 4.7. Summary: CPS: - Copy EVA configuration when starting secondary VPs. EIC: - Clear Status IPL. Lasat: - Fix a few off by one bugs. lib: - Mark intrinsics notrace. Not only are the intrinsics uninteresting, it would cause infinite recursion. MAINTAINERS: - Add file patterns for MIPS BRCM device tree bindings. - Add file patterns for mips device tree bindings. MT7628: - Fix MT7628 pinmux typos. - wled_an pinmux gpio. - EPHY LEDs pinmux support. Pistachio: - Enable KASLR VDSO: - Build microMIPS VDSO for microMIPS kernels. - Fix aliasing warning by building with `-fno-strict-aliasing' for debugging but also tracing them might result in recursion. Misc: - Add missing FROZEN hotplug notifier transitions. - Fix clk binding example for varioius PIC32 devices. - Fix cpu interrupt controller node-names in the DT files. - Fix XPA CPU feature separation. - Fix write_gc0_* macros when writing zero. - Add inline asm encoding helpers. - Add missing VZ accessor microMIPS encodings. - Fix little endian microMIPS MSA encodings. - Add 64-bit HTW fields and fix its configuration. - Fix sigreturn via VDSO on microMIPS kernel. - Lots of typo fixes. - Add definitions of SegCtl registers and use them" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (49 commits) MIPS: Add missing FROZEN hotplug notifier transitions MIPS: Build microMIPS VDSO for microMIPS kernels MIPS: Fix sigreturn via VDSO on microMIPS kernel MIPS: devicetree: fix cpu interrupt controller node-names MIPS: VDSO: Build with `-fno-strict-aliasing' MIPS: Pistachio: Enable KASLR MIPS: lib: Mark intrinsics notrace MIPS: Fix 64-bit HTW configuration MIPS: Add 64-bit HTW fields MAINTAINERS: Add file patterns for mips device tree bindings MAINTAINERS: Add file patterns for mips brcm device tree bindings MIPS: Simplify DSP instruction encoding macros MIPS: Add missing tlbinvf/XPA microMIPS encodings MIPS: Fix little endian microMIPS MSA encodings MIPS: Add missing VZ accessor microMIPS encodings MIPS: Add inline asm encoding helpers MIPS: Spelling fix lets -> let's MIPS: VR41xx: Fix typo MIPS: oprofile: Fix typo MIPS: math-emu: Fix typo ...
2016-05-28Merge branch 'hash' of git://ftp.sciencehorizons.net/linuxLinus Torvalds7-0/+204
Pull string hash improvements from George Spelvin: "This series does several related things: - Makes the dcache hash (fs/namei.c) useful for general kernel use. (Thanks to Bruce for noticing the zero-length corner case) - Converts the string hashes in <linux/sunrpc/svcauth.h> to use the above. - Avoids 64-bit multiplies in hash_64() on 32-bit platforms. Two 32-bit multiplies will do well enough. - Rids the world of the bad hash multipliers in hash_32. This finishes the job started in commit 689de1d6ca95 ("Minimal fix-up of bad hashing behavior of hash_64()") The vast majority of Linux architectures have hardware support for 32x32-bit multiply and so derive no benefit from "simplified" multipliers. The few processors that do not (68000, h8/300 and some models of Microblaze) have arch-specific implementations added. Those patches are last in the series. - Overhauls the dcache hash mixing. The patch in commit 0fed3ac866ea ("namei: Improve hash mixing if CONFIG_DCACHE_WORD_ACCESS") was an off-the-cuff suggestion. Replaced with a much more careful design that's simultaneously faster and better. (My own invention, as there was noting suitable in the literature I could find. Comments welcome!) - Modify the hash_name() loop to skip the initial HASH_MIX(). This would let us salt the hash if we ever wanted to. - Sort out partial_name_hash(). The hash function is declared as using a long state, even though it's truncated to 32 bits at the end and the extra internal state contributes nothing to the result. And some callers do odd things: - fs/hfs/string.c only allocates 32 bits of state - fs/hfsplus/unicode.c uses it to hash 16-bit unicode symbols not bytes - Modify bytemask_from_count to handle inputs of 1..sizeof(long) rather than 0..sizeof(long)-1. This would simplify users other than full_name_hash" Special thanks to Bruce Fields for testing and finding bugs in v1. (I learned some humbling lessons about "obviously correct" code.) On the arch-specific front, the m68k assembly has been tested in a standalone test harness, I've been in contact with the Microblaze maintainers who mostly don't care, as the hardware multiplier is never omitted in real-world applications, and I haven't heard anything from the H8/300 world" * 'hash' of git://ftp.sciencehorizons.net/linux: h8300: Add <asm/hash.h> microblaze: Add <asm/hash.h> m68k: Add <asm/hash.h> <linux/hash.h>: Add support for architecture-specific functions fs/namei.c: Improve dcache hash function Eliminate bad hash multipliers from hash_32() and hash_64() Change hash_64() return value to 32 bits <linux/sunrpc/svcauth.h>: Define hash_str() in terms of hashlen_string() fs/namei.c: Add hashlen_string() function Pull out string hash to <linux/stringhash.h>
2016-05-28h8300: Add <asm/hash.h>George Spelvin2-0/+54
This will improve the performance of hash_32() and hash_64(), but due to complete lack of multi-bit shift instructions on H8, performance will still be bad in surrounding code. Designing H8-specific hash algorithms to work around that is a separate project. (But if the maintainers would like to get in touch...) Signed-off-by: George Spelvin <linux@sciencehorizons.net> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: uclinux-h8-devel@lists.sourceforge.jp
2016-05-28microblaze: Add <asm/hash.h>George Spelvin2-0/+82
Microblaze is an FPGA soft core that can be configured various ways. If it is configured without a multiplier, the standard __hash_32() will require a call to __mulsi3, which is a slow software loop. Instead, use a shift-and-add sequence for the constant multiply. GCC knows how to do this, but it's not as clever as some. Signed-off-by: George Spelvin <linux@sciencehorizons.net> Cc: Alistair Francis <alistair.francis@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com>
2016-05-28m68k: Add <asm/hash.h>George Spelvin2-0/+60
This provides a multiply by constant GOLDEN_RATIO_32 = 0x61C88647 for the original mc68000, which lacks a 32x32-bit multiply instruction. Yes, the amount of optimization effort put in is excessive. :-) Shift-add chain found by Yevgen Voronenko's Hcub algorithm at http://spiral.ece.cmu.edu/mcm/gen.html Signed-off-by: George Spelvin <linux@sciencehorizons.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: Philippe De Muyter <phdm@macq.eu> Cc: linux-m68k@lists.linux-m68k.org
2016-05-28<linux/hash.h>: Add support for architecture-specific functionsGeorge Spelvin1-0/+8
This is just the infrastructure; there are no users yet. This is modelled on CONFIG_ARCH_RANDOM; a CONFIG_ symbol declares the existence of <asm/hash.h>. That file may define its own versions of various functions, and define HAVE_* symbols (no CONFIG_ prefix!) to suppress the generic ones. Included is a self-test (in lib/test_hash.c) that verifies the basics. It is NOT in general required that the arch-specific functions compute the same thing as the generic, but if a HAVE_* symbol is defined with the value 1, then equality is tested. Signed-off-by: George Spelvin <linux@sciencehorizons.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: Philippe De Muyter <phdm@macq.eu> Cc: linux-m68k@lists.linux-m68k.org Cc: Alistair Francis <alistai@xilinx.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: uclinux-h8-devel@lists.sourceforge.jp
2016-05-28MIPS: Add missing FROZEN hotplug notifier transitionsAnna-Maria Gleixner1-1/+1
The corresponding FROZEN hotplug notifier transitions used on suspend/resume are ignored. Therefore the switch case action argument is masked with the frozen hotplug notifier transition mask. Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: rt@linutronix.de Patchwork: https://patchwork.linux-mips.org/patch/13351/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-28MIPS: Build microMIPS VDSO for microMIPS kernelsJames Hogan1-0/+1
MicroMIPS kernels may be expected to run on microMIPS only cores which don't support the normal MIPS instruction set, so be sure to pass the -mmicromips flag through to the VDSO cflags. Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.4.x- Patchwork: https://patchwork.linux-mips.org/patch/13349/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2016-05-28MIPS: Fix sigreturn via VDSO on microMIPS kernelJames Hogan1-8/+0
In microMIPS kernels, handle_signal() sets the isa16 mode bit in the vdso address so that the sigreturn trampolines (which are offset from the VDSO) get executed as microMIPS. However commit ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") changed the offsets to come from the VDSO image, which already have the isa16 mode bit set correctly since they're extracted from the VDSO shared library symbol table. Drop the isa16 mode bit handling from handle_signal() to fix sigreturn for cores which support both microMIPS and normal MIPS. This doesn't fix microMIPS only cores, since the VDSO is still built for normal MIPS, but thats a separate problem. Fixes: ebb5e78cc634 ("MIPS: Initial implementation of a VDSO") Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 4.4.x- Patchwork: https://patchwork.linux-mips.org/patch/13348/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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