- 13 3月, 2014 1 次提交
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由 Marek Szyprowski 提交于
Enable reserved memory initialization from device tree. Signed-off-by: NMarek Szyprowski <m.szyprowski@samsung.com> Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NGrant Likely <grant.likely@linaro.org>
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- 08 2月, 2014 1 次提交
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由 Mark Rutland 提交于
FPGA implementations of the Cortex-A57 and Cortex-A53 are now available in the form of the SMM-A57 and SMM-A53 Soft Macrocell Models (SMMs) for Versatile Express. As these attach to a Motherboard Express V2M-P1 it would be useful to have support for some V2M-P1 peripherals enabled by default. Additionally a couple of of features have been introduced since the last defconfig update (CMA, jump labels) that would be good to have enabled by default to ensure they are build and boot tested. This patch updates the arm64 defconfig to enable support for these devices and features. The arm64 Kconfig is modified to select HAVE_PATA_PLATFORM, which is required to enable support for the CompactFlash controller on the V2M-P1. A few options which don't need to appear in defconfig are trimmed: * BLK_DEV - selected by default * EXPERIMENTAL - otherwise gone from the kernel * MII - selected by drivers which require it * USB_SUPPORT - selected by default Signed-off-by: NMark Rutland <mark.rutland@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 08 1月, 2014 1 次提交
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由 Jiang Liu 提交于
Optimize jump label implementation for ARM64 by dynamically patching kernel text. Reviewed-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NJiang Liu <liuj97@gmail.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 20 12月, 2013 4 次提交
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由 Laura Abbott 提交于
arm64 bit targets need the features CMA provides. Add the appropriate hooks, header files, and Kconfig to allow this to happen. Cc: Will Deacon <will.deacon@arm.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: NLaura Abbott <lauraa@codeaurora.org> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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由 Will Deacon 提交于
ARMv8 CPUs can perform efficient unaligned memory accesses in hardware and this feature is relied up on by code such as the dcache word-at-a-time name hashing. This patch selects HAVE_EFFICIENT_UNALIGNED_ACCESS for arm64. Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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由 Will Deacon 提交于
DCACHE_WORD_ACCESS uses the word-at-a-time API for optimised string comparisons in the vfs layer. This patch implements support for load_unaligned_zeropad in much the same way as has been done for ARM, although big-endian systems are also supported. Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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由 Will Deacon 提交于
This patch implements the word-at-a-time interface for arm64 using the same algorithm as ARM. We use the fls64 macro, which expands to a clz instruction via a compiler builtin. Big-endian configurations make use of the implementation from asm-generic. With this implemented, we can replace our byte-at-a-time strnlen_user and strncpy_from_user functions with the optimised generic versions. Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 17 12月, 2013 3 次提交
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由 Lorenzo Pieralisi 提交于
This patch provides a menu for CPU power management options in the arm64 Kconfig and adds an entry to enable the generic CPU idle configuration. Acked-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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由 Lorenzo Pieralisi 提交于
This patch adds the required makefile and kconfig entries to enable PM for arm64 systems. The kernel relies on the cpu_{suspend}/{resume} infrastructure to properly save the context for a CPU and put it to sleep, hence this patch adds the config option required to enable cpu_{suspend}/{resume} API. In order to rely on the CPU PM implementation for saving and restoring of CPU subsystems like GIC and PMU, the arch Kconfig must be also augmented to select the CONFIG_CPU_PM option when SUSPEND or CPU_IDLE kernel implementations are selected. Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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由 Lorenzo Pieralisi 提交于
On platforms with power management capabilities, timers that are shut down when a CPU enters deep C-states must be emulated using an always-on timer and a timer IPI to relay the timer IRQ to target CPUs on an SMP system. This patch enables the generic clockevents broadcast infrastructure for arm64, by providing the required Kconfig entries and adding the timer IPI infrastructure. Acked-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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- 07 12月, 2013 1 次提交
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由 Rob Herring 提交于
Rather than continue to add per platform defaults, make the default a likely common core count. 8 is also the default for x86. Signed-off-by: NRob Herring <rob.herring@calxeda.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 15 11月, 2013 1 次提交
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由 Christoph Hellwig 提交于
We've switched over every architecture that supports SMP to it, so remove the new useless config variable. Signed-off-by: NChristoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 06 11月, 2013 1 次提交
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由 Catalin Marinas 提交于
Commit 52ea2a56 (arm64: locks: introduce ticket-based spinlock implementation) introduces the arch_spin_is_contended() function making CONFIG_GENERIC_LOCKBREAK unnecessary. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NWill Deacon <will.deacon@arm.com>
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- 25 10月, 2013 2 次提交
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由 Will Deacon 提交于
This patch wires up CONFIG_CPU_BIG_ENDIAN for the AArch64 kernel configuration. Selecting this option builds a big-endian kernel which can boot into a big-endian userspace. Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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由 Mark Rutland 提交于
This patch adds the basic infrastructure necessary to support CPU_HOTPLUG on arm64, based on the arm implementation. Actual hotplug support will depend on an implementation's cpu_operations (e.g. PSCI). Signed-off-by: NMark Rutland <mark.rutland@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 24 10月, 2013 1 次提交
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由 Will Deacon 提交于
Our spinlocks are only 32-bit (2x16-bit tickets) and our cmpxchg can deal with 8-bytes (as one would hope!). This patch wires up the cmpxchg-based lockless lockref implementation for arm64. Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 10 10月, 2013 2 次提交
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由 Stephen Boyd 提交于
Register with the generic sched_clock framework now that it supports 64 bits. This fixes two problems with the current sched_clock support for machines using the architected timers. First off, we don't subtract the start value from subsequent sched_clock calls so we can potentially start off with sched_clock returning gigantic numbers. Second, there is no support for suspend/resume handling so problems such as discussed in 6a4dae5e (ARM: 7565/1: sched: stop sched_clock() during suspend, 2012-10-23) can happen without this patch. Finally, it allows us to move the sched_clock setup into drivers clocksource out of the arch ports. Cc: Christopher Covington <cov@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Acked-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NStephen Boyd <sboyd@codeaurora.org> Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
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由 Stefano Stabellini 提交于
Xen on arm and arm64 needs SWIOTLB_XEN: when running on Xen we need to program the hardware with mfns rather than pfns for dma addresses. Remove SWIOTLB_XEN dependency on X86 and PCI and make XEN select SWIOTLB_XEN on arm and arm64. At the moment always rely on swiotlb-xen, but when Xen starts supporting hardware IOMMUs we'll be able to avoid it conditionally on the presence of an IOMMU on the platform. Implement xen_create_contiguous_region on arm and arm64: for the moment we assume that dom0 has been mapped 1:1 (physical addresses == machine addresses) therefore we don't need to call XENMEM_exchange. Simply return the physical address as dma address. Initialize the xen-swiotlb from xen_early_init (before the native dma_ops are initialized), set xen_dma_ops to &xen_swiotlb_dma_ops. Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com> Changes in v8: - assume dom0 is mapped 1:1, no need to call XENMEM_exchange. Changes in v7: - call __set_phys_to_machine_multi from xen_create_contiguous_region and xen_destroy_contiguous_region to update the P2M; - don't call XENMEM_unpin, it has been removed; - call XENMEM_exchange instead of XENMEM_exchange_and_pin; - set nr_exchanged to 0 before calling the hypercall. Changes in v6: - introduce and export xen_dma_ops; - call xen_mm_init from as arch_initcall. Changes in v4: - remove redefinition of DMA_ERROR_CODE; - update the code to use XENMEM_exchange_and_pin and XENMEM_unpin; - add a note about hardware IOMMU in the commit message. Changes in v3: - code style changes; - warn on XENMEM_put_dma_buf failures.
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- 13 9月, 2013 1 次提交
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由 Martin Schwidefsky 提交于
After the last architecture switched to generic hard irqs the config options HAVE_GENERIC_HARDIRQS & GENERIC_HARDIRQS and the related code for !CONFIG_GENERIC_HARDIRQS can be removed. Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
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- 20 8月, 2013 1 次提交
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由 Ard Biesheuvel 提交于
Add <asm/neon.h> containing kernel_neon_begin/kernel_neon_end function declarations and corresponding definitions in fpsimd.c These are needed to wrap uses of NEON in kernel mode. The names are identical to the ones used in arm/ so code using intrinsics or vectorized by GCC can be shared between arm and arm64. Signed-off-by: NArd Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 04 7月, 2013 1 次提交
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由 Marc Zyngier 提交于
Finally plug KVM/arm64 into the config system, making it possible to enable KVM support on AArch64 CPUs. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 21 6月, 2013 1 次提交
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由 Vinayak Kale 提交于
This patch adds arm64/Kconfig option for APM X-Gene SOC family. Signed-off-by: NKumar Sankaran <ksankaran@apm.com> Signed-off-by: NLoc Ho <lho@apm.com> Signed-off-by: NFeng Kan <fkan@apm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 14 6月, 2013 3 次提交
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由 Steve Capper 提交于
Bring Transparent HugePage support to ARM. The size of a transparent huge page depends on the normal page size. A transparent huge page is always represented as a pmd. If PAGE_SIZE is 4KB, THPs are 2MB. If PAGE_SIZE is 64KB, THPs are 512MB. Signed-off-by: NSteve Capper <steve.capper@linaro.org> Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
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由 Steve Capper 提交于
The buddy allocator has a default MAX_ORDER of 11, which is too low to allocate enough memory for 512MB Transparent HugePages if our base page size is 64KB. This patch introduces MAX_ZONE_ORDER and sets it to 14 when 64KB pages are used in conjuction with THP, otherwise the default value of 11 is used. Signed-off-by: NSteve Capper <steve.capper@linaro.org> Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
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由 Steve Capper 提交于
Add huge page support to ARM64, different huge page sizes are supported depending on the size of normal pages: PAGE_SIZE is 4KB: 2MB - (pmds) these can be allocated at any time. 1024MB - (puds) usually allocated on bootup with the command line with something like: hugepagesz=1G hugepages=6 PAGE_SIZE is 64KB: 512MB - (pmds) usually allocated on bootup via command line. Signed-off-by: NSteve Capper <steve.capper@linaro.org> Acked-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 12 6月, 2013 1 次提交
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由 Will Deacon 提交于
As is done for other architectures, sort the exception table at build-time rather than during boot. Since sortextable appears to be a standalone C program relying on the host elf.h to provide EM_AARCH64, I've had to add a conditional check in order to allow cross-compilation on machines that aren't running a bleeding-edge libc-dev. Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 07 6月, 2013 1 次提交
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由 Stefano Stabellini 提交于
Introduce CONFIG_XEN and the implementation of hypercall.S (that is the only ARMv8 specific code in Xen support for ARM). Compile enlighten.c and grant_table.c from arch/arm. Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: NIan Campbell <ian.campbell@citrix.com>
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- 14 5月, 2013 1 次提交
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由 Catalin Marinas 提交于
As per commit 764e0da1 (timers: Fixup the Kconfig consolidation fallout), init/Kconfig already includes kernel/time/Kconfig, so no need to do it explicitly for arm64. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 08 5月, 2013 2 次提交
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由 Catalin Marinas 提交于
This patch adds the arm_pm_poweroff definition expected by the vexpress-poweroff.c driver and enables the latter for arm64. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NPawel Moll <pawel.moll@arm.com>
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由 Catalin Marinas 提交于
This patch enables ARM_GIC on the arm64 kernel. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 26 4月, 2013 1 次提交
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由 Catalin Marinas 提交于
This patch adds the necessary Kconfig entries to enable support for the ARMv8 software model (Versatile Express platform) together with the defconfig update. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NArnd Bergmann <arnd@arndb.de>
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- 17 4月, 2013 1 次提交
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由 Thomas Gleixner 提交于
All archs are converted over. Remove the config switch and the fallback code. Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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- 16 4月, 2013 1 次提交
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由 Alexandre Courbot 提交于
GENERIC_GPIO has been made equivalent to GPIOLIB in architecture code and all driver code has been switch to depend on GPIOLIB. It is thus safe to have GENERIC_GPIO removed. Signed-off-by: NAlexandre Courbot <acourbot@nvidia.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NGrant Likely <grant.likely@secretlab.ca>
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- 08 4月, 2013 1 次提交
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Paul McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Reviewed-by: NCc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Cc: Magnus Damm <magnus.damm@gmail.com> Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Link: http://lkml.kernel.org/r/20130321215233.887563095@linutronix.de
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- 19 3月, 2013 1 次提交
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由 Paul Bolle 提交于
Config option GENERIC_HARDIRQS_NO_DEPRECATED was removed in commit 78c89825 ("genirq: Remove the now obsolete config options and select statements"), but the select was accidentally reintroduced in commit 8c2c3df3 ("arm64: Build infrastructure"). Signed-off-by: NPaul Bolle <pebolle@tiscali.nl> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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- 22 2月, 2013 1 次提交
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由 Arnd Bergmann 提交于
An architecture should not unconditionally enable 'GENERIC_GPIO' without providing an implementation. In case of arm64, selecting ARCH_WANT_OPTIONAL_GPIOLIB is the right solution, because it lets us enable GPIOLIB when configuring the kernel, and that implicitly turns on GENERIC_GPIO. Reported-by: NMark Rutland <mark.rutland@arm.com> Signed-off-by: NArnd Bergmann <arnd@arndb.de> Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 14 2月, 2013 4 次提交
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由 Al Viro 提交于
__ARCH_WANT_SYS_RT_SIGACTION, __ARCH_WANT_SYS_RT_SIGSUSPEND, __ARCH_WANT_COMPAT_SYS_RT_SIGSUSPEND, __ARCH_WANT_COMPAT_SYS_SCHED_RR_GET_INTERVAL - not used anymore CONFIG_GENERIC_{SIGALTSTACK,COMPAT_RT_SIG{ACTION,QUEUEINFO,PENDING,PROCMASK}} - can be assumed always set.
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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