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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4Thomas Gleixner2019-05-211-2/+1
| | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): licensed under gplv2 or later extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 118 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154040.961286471@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ARM: smp: remove arch-provided "pen_release"Russell King2019-02-011-7/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Consolidating the "pen_release" stuff amongst the various SoC implementations gives credence to having a CPU holding pen for secondary CPUs. However, this is far from the truth. Many SoC implementations cargo-cult copied various bits of the pen release implementation from the initial Realview/Versatile Express implementation without understanding what it was or why it existed. The reason it existed is because these are _development_ platforms, and some board firmware is unable to individually control the startup of secondary CPUs. Moreover, they do not have a way to power down or reset secondary CPUs for hot-unplug. Hence, the pen_release implementation was designed for ARM Ltd's development platforms to provide a working implementation, even though it is very far from what is required. It was decided a while back to reduce the duplication by consolidating the "pen_release" variable, but this only made the situation worse - we have ended up with several implementations that read this variable but do not write it - again, showing the cargo-cult mentality at work, lack of proper review of new code, and in some cases a lack of testing. While it would be preferable to remove pen_release entirely from the kernel, this is not possible without help from the SoC maintainers, which seems to be lacking. However, I want to remove pen_release from arch code to remove the credence that having it gives. This patch removes pen_release from the arch code entirely, adding private per-SoC definitions for it instead, and explicitly stating that write_pen_release() is cargo-cult copied and should not be copied any further. Rename write_pen_release() in a similar fashion as well. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* ARM: 8641/1: treewide: Replace uses of virt_to_phys with __pa_symbolFlorian Fainelli2017-02-281-1/+1
| | | | | | | | | | | All low-level PM/SMP code using virt_to_phys() should actually use __pa_symbol() against kernel symbols. Update code where relevant to move away from virt_to_phys(). Acked-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: use const and __initconst for smp_operationsMasahiro Yamada2015-12-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | These smp_operations structures are not over-written, so add "const" qualifier and replace __initdata with __initconst. Also, add "static" where it is possible. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Moritz Fischer <moritz.fischer@ettus.com> Acked-by: Stephen Boyd <sboyd@codeaurora.org> # qcom part Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Wei Xu <xuwei5@hisilicon.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* ARM: make of_device_ids constUwe Kleine-König2015-02-191-1/+1
| | | | | | | | | | | | | of_device_ids (i.e. compatible strings and the respective data) are not supposed to change at runtime. All functions working with of_device_ids provided by <linux/of.h> work with const of_device_ids. So mark the non-const structs in arch/arm as const, too. While at it also add some __initconst annotations. Acked-by: Jason Cooper <jason@lakedameon.net> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* ARM: sirf: move platsmp to support Atlas7 SoCZhiwu Song2015-01-201-39/+13
| | | | | | | | | | This patch breaks Marco SMP support, but Marco project has been dropped. So it corrects cpu1 jump/flag address for Atlas7 and removes scu related logic as scu doesn't expose in cortex-a7. Signed-off-by: Zhiwu Song <Zhiwu.Song@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* ARM: prima2: platsmp: fix checkpatch issuesBarry Song2014-03-051-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | fix the below checkpatch issues: ERROR: code indent should use tabs where possible 141: FILE: platsmp.c:141: + .smp_prepare_cpus = sirfsoc_smp_prepare_cpus,$ WARNING: please, no spaces at the start of a line 141: FILE: platsmp.c:141: + .smp_prepare_cpus = sirfsoc_smp_prepare_cpus,$ ERROR: code indent should use tabs where possible 142: FILE: platsmp.c:142: + .smp_secondary_init = sirfsoc_secondary_init,$ WARNING: please, no spaces at the start of a line 142: FILE: platsmp.c:142: + .smp_secondary_init = sirfsoc_secondary_init,$ ERROR: code indent should use tabs where possible 143: FILE: platsmp.c:143: + .smp_boot_secondary = sirfsoc_boot_secondary,$ WARNING: please, no spaces at the start of a line 143: FILE: platsmp.c:143: + .smp_boot_secondary = sirfsoc_boot_secondary,$ Signed-off-by: Barry Song <Baohua.Song@csr.com>
* ARM: clean up cache handling in platform codeNicolas Pitre2013-12-111-2/+1
| | | | | | | | We have a handy macro to replace open coded __cpuc_flush_dcache_area(() and outer_clean_range() sequences. Let's use it. No functional change. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
* arm: delete __cpuinit/__CPUINIT usage from all ARM usersPaul Gortmaker2013-07-141-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) and are flagged as __cpuinit -- so if we remove the __cpuinit from the arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit related content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. This removes all the ARM uses of the __cpuinit macros from C code, and all __CPUINIT from assembly code. It also had two ".previous" section statements that were paired off against __CPUINIT (aka .section ".cpuinit.text") that also get removed here. [1] https://lkml.org/lkml/2013/5/20/589 Cc: Russell King <linux@arm.linux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* Merge tag 'multiplatform-for-linus' of ↵Linus Torvalds2013-05-021-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC multiplatform updates from Olof Johansson: "More multiplatform enablement for ARM platforms. The ones converted in this branch are: - bcm2835 - cns3xxx - sirf - nomadik - msx - spear - tegra - ux500 We're getting close to having most of them converted! One of the larger platforms remaining is Samsung Exynos, and there are a bunch of supporting patches in this merge window for it. There was a patch in this branch to a early version of multiplatform conversion, but it ended up being reverted due to need of more bake time. The revert commit is part of the branch since it would have required rebasing multiple dependent branches and they were stable by then" * tag 'multiplatform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (70 commits) mmc: sdhci-s3c: Fix operation on non-single image Samsung platforms clocksource: nomadik-mtu: fix up clocksource/timer Revert "ARM: exynos: enable multiplatform support" ARM: SPEAr13xx: Fix typo "ARCH_HAVE_CPUFREQ" ARM: exynos: enable multiplatform support rtc: s3c: make header file local mtd: onenand/samsung: make regs-onenand.h file local thermal/exynos: remove unnecessary header inclusions mmc: sdhci-s3c: remove platform dependencies ARM: samsung: move mfc device definition to s5p-dev-mfc.c ARM: exynos: move debug-macro.S to include/debug/ ARM: exynos: prepare for sparse IRQ ARM: exynos: introduce EXYNOS_ATAGS symbol ARM: tegra: build assembly files with -march=armv7-a ARM: Push selects for TWD/SCU into machine entries ARM: ux500: build hotplug.o for ARMv7-a ARM: ux500: move to multiplatform ARM: ux500: make remaining headers local ARM: ux500: make irqs.h local to platform ARM: ux500: get rid of <mach/[hardware|db8500-regs].h> ...
| * ARM: sirf: enable multiplatform supportArnd Bergmann2013-03-251-1/+0
| | | | | | | | | | | | All the prerequisites are there now, so we can move sirf into multiplatform. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | irqchip: gic: Perform the gic_secondary_init() call via CPU notifierCatalin Marinas2013-03-261-8/+0
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the calls to gic_secondary_init() pass 0 as the first argument. Since this function is called on each CPU when starting, it can be done in a platform-independent way via a CPU notifier registered by the GIC code. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Stephen Warren <swarren@nvidia.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Tested-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Tested-by: Dinh Nguyen <dinguyen@altera.com> Acked-by: Nicolas Pitre <nico@linaro.org> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: David Brown <davidb@codeaurora.org> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: Tony Lindgren <tony@atomide.com> Cc: Magnus Damm <magnus.damm@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Barry Song <baohua.song@csr.com>
* ARM: MARCO: fix the build issue due to gic-vic-to-irqchip moveBarry Song2013-02-041-7/+1
| | | | | | | | | | | | | | | | | | | | | Fix the issue: tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc.git next/soc head: 6ed05a2aab3763b58922247543d7079106b254dc commit: af70fdc947dbe835acc26c6ee9e8e930f38935f8 [4/8] Merge branch 'marco-timer-cleanup-rebase' of git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into next/soc config: make ARCH=arm prima2_defconfig All error/warnings: >> arch/arm/mach-prima2/platsmp.c:20:30: fatal error: asm/hardware/gic.h: No such file or directory compilation terminated. -- >> arch/arm/mach-prima2/common.c:15:30: fatal error: asm/hardware/gic.h: No such file or directory compilation terminated. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Xie ChanglongX <changlongx.xie@intel.com> Signed-off-by: Olof Johansson <olof@lixom.net>
* ARM: PRIMA2: add new SiRFmarco SMP SoC infrastructuresBarry Song2013-01-221-0/+163
this patch adds tick timer, smp entries and generic DT machine for SiRFmarco dual-core SMP chips. with the added marco, we change the defconfig, using the same defconfig, we get a zImage which can work on both prima2 and marco. Signed-off-by: Barry Song <Baohua.Song@csr.com> Cc: Mark Rutland <mark.rutland@arm.com>
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