- 29 3月, 2012 2 次提交
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由 David Howells 提交于
Disintegrate asm/system.h for ARM. Signed-off-by: NDavid Howells <dhowells@redhat.com> cc: Russell King <linux@arm.linux.org.uk> cc: linux-arm-kernel@lists.infradead.org
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由 Russell King 提交于
Avoid namespace conflicts with drivers over the CP15 definitions by moving CP15 related prototypes and definitions to a private header file. Acked-by: NStephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> [Tegra] Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com> [EP93xx] Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NKukjin Kim <kgene.kim@samsung.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: NDavid Howells <dhowells@redhat.com>
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- 24 3月, 2012 15 次提交
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由 Russell King 提交于
Move the USB interface register definitions into the driver, rather than keeping them in a common place. Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Move the PCMCIA interface register definitions into the driver, rather than keeping them in a common place. Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Move the PS/2 interface register definitions into the driver, rather than keeping them in a common location. Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Get rid of the unused GPIO register definitions - we access GPIO registers through the base + offset method, and having the phys address definitions is unnecessary duplication. Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Some platforms don't want certain devices to be registered, because, eg, the interface is not wired. Provide a way for platforms to prevent various devices from being registered via a devid bitmask in the platform data. Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Uwe Kleine-König 提交于
XIP_VIRT_ADDR is needed for XIP builds and currently only defined for builds with CONFIG_MMU. Also provide it for no-MMU builds to make it possible to build an XIP kernel for MMU-less machines. As these lack an MMU it has to be an identity mapping. Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Rabin Vincent 提交于
Add the arch-specific code to support jump labels for ARM and Thumb-2. This code will only be activated on compilers that are capable of building it. It has been tested with GCC 4.6 patched with the patch from GCC bug 48637. Cc: Jason Baron <jbaron@redhat.com> Signed-off-by: NRabin Vincent <rabin@rab.in> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Mathias Krause 提交于
The address limit is already set in flush_old_exec() so this set_fs(USER_DS) is redundant. Signed-off-by: NMathias Krause <minipli@googlemail.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Avoid potential build problems caused by lacking mach/irqs.h includes on non-OF builds caused by an errant include in asm/prom.h. asm/prom.h requires nothing from asm/irq.h, as Grant says: On Mon, Feb 06, 2012 at 05:56:23AM +0000, Grant Likely wrote: > On Sat, Feb 04, 2012 at 10:17:48PM +0000, Russell King wrote: > > Finally, do we need asm/irq.h in our asm/prom.h ? That's causing > > fragility between DT and non-DT builds, because people are finding > > that their DT builds work without their mach/irqs.h includes but > > fail when built with non-DT. The only thing which DT might need - > > at the most - is NR_IRQS, but I'd hope with things like irq domains > > it doesn't actually require it. > > I don't think so. There may be a file or two that break because they're > not including everything they need, but I don't think anything in the > header requires it. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Will Deacon 提交于
Cortex-A7 implements an ARMv7-compatible PMU compliant with the PMUv2 architecture specification. This patch adds support for the PMU to the ARM perf backend. Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
The compiler does not conditionalize the assembly instructions for the tlb operations, which leads to sub-optimal code being generated when building a kernel for multiple CPUs. We can tweak things fairly simply as the code fragment below shows: 17f8: e3120001 tst r2, #1 ; 0x1 ... 1800: 0a000000 beq 1808 <handle_pte_fault+0x194> 1804: ee061f10 mcr 15, 0, r1, cr6, cr0, {0} 1808: e3120004 tst r2, #4 ; 0x4 180c: 0a000000 beq 1814 <handle_pte_fault+0x1a0> 1810: ee081f36 mcr 15, 0, r1, cr8, cr6, {1} becomes: 17f0: e3120001 tst r2, #1 ; 0x1 17f4: 1e063f10 mcrne 15, 0, r3, cr6, cr0, {0} 17f8: e3120004 tst r2, #4 ; 0x4 17fc: 1e083f36 mcrne 15, 0, r3, cr8, cr6, {1} Overall, for Realview with V6 and V7 CPUs configured: text data bss dec hex filename 4153998 207340 5371036 9732374 948116 ../build/realview/vmlinux.before 4153366 207332 5371036 9731734 947e96 ../build/realview/vmlinux.after Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Dave Martin 提交于
This patch adds some endianness-agnostic helpers to convert machine instructions between canonical integer form and in-memory representation. A canonical integer form for representing instructions is also formalised here. Signed-off-by: NDave Martin <dave.martin@linaro.org> Acked-by: NNicolas Pitre <nico@linaro.org> Tested-by: NJon Medhurst <tixy@yxit.co.uk> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Will Deacon 提交于
The current user mapping for the vectors page is inserted as a `horrible hack vma' into each task via arch_setup_additional_pages. This causes problems with the MM subsystem and vm_normal_page, as described here: https://lkml.org/lkml/2012/1/14/55 Following the suggestion from Hugh in the above thread, this patch uses the gate_vma for the vectors user mapping, therefore consolidating the horrible hack VMAs into one. Acked-and-Tested-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Russell King 提交于
Avoid namespace conflicts with drivers over the CP15 definitions by moving CP15 related prototypes and definitions to a private header file. Acked-by: NStephen Warren <swarren@nvidia.com> Tested-by: Stephen Warren <swarren@nvidia.com> [Tegra] Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com> [EP93xx] Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NKukjin Kim <kgene.kim@samsung.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Javi Merino 提交于
Commit 33bf5610 ("feature removal of io_remap_page_range()") removed io_remap_page_range(), but it is still included in some arch header files. It has no in-tree users. Signed-off-by: NJavi Merino <javi.merino@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Jonas Bonn <jonas@southpole.se> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 23 3月, 2012 1 次提交
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由 David Howells 提交于
arch/arm/include/asm/hardware/iop3xx.h needs to include linux/types.h to avoid the following errors: In file included from arch/arm/plat-iop/restart.c:10:0: /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:239:1: error: unknown type name 'u32' /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h: In function 'read_tmr0': /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:241:2: error: unknown type name 'u32' /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h: At top level: /data/fs/linux-2.6-fscache/arch/arm/include/asm/hardware/iop3xx.h:246:31: error: unknown type name 'u32' ... Signed-off-by: NDavid Howells <dhowells@redhat.com>
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- 20 3月, 2012 1 次提交
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由 Cong Wang 提交于
[swarren@nvidia.com: highmem: Fix ARM build break due to __kmap_atomic rename] Signed-off-by: NStephen Warren <swarren@nvidia.com> Signed-off-by: NCong Wang <amwang@redhat.com>
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- 13 3月, 2012 7 次提交
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由 Marc Zyngier 提交于
Remove all traces of the compile-time local timer interface, and make the runtime selection mandatory. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
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由 Marc Zyngier 提交于
Now that all users of the previous local timer interface have been converted to the runtime registration API, make this interface the only one supported for this driver. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
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由 Marc Zyngier 提交于
Add bindings to support DT discovery of the ARM Timer Watchdog (aka TWD). Only the timer side is converted by this patch. Acked-by: NRob Herring <rob.herring@calxeda.com> Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
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由 Marc Zyngier 提交于
Add support for the new registration interface to smp_twd. Platforms can populate a struct twd_local_timer with MMIO and IRQ resources, and then call twd_local_timer_register() to have the timer registered with the core. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
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由 Marc Zyngier 提交于
In order to switch to a runtime selectable local timer, add a registration interface that timer drivers can use to register to the core. local_timer_setup() and local_timer_stop() are made weak symbols in order not to break existing setups. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
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由 Marc Zyngier 提交于
When CONFIG_HAVE_ARM_TWD is selected, local_timer_stop is a #define, while all other local timers are using a real function. Convert it to an alias of twd_timer_stop, as it helps converting all local timers to another internal API in a sane way. Signed-off-by: NMarc Zyngier <marc.zyngier@arm.com>
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由 Russell King - ARM Linux 提交于
Every DMA engine implementation declares a last completed dma cookie in their private dma channel structures. This is pointless, and forces driver specific code. Move this out into the common dma_chan structure. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk> Tested-by: NLinus Walleij <linus.walleij@linaro.org> Reviewed-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NJassi Brar <jassisinghbrar@gmail.com> [imx-sdma.c & mxs-dma.c] Tested-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
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- 08 3月, 2012 1 次提交
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由 Boojin Kim 提交于
Currently there were two part of DMAC PL330 driver for support old styled s3c-pl330 which has been merged into drivers/dma/pl330.c driver. Actually, there is no reason to separate them now. Basically this patch merges arch/arm/common/pl330.c into drivers/dma/pl330.c driver and removes useless exported symbol, externed function and so on. The newer pl330 driver tested on SMDKV310 and SMDK4212 boards Cc: Jassi Brar <jassisinghbrar@gmail.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NVinod Koul <vinod.koul@intel.com> Signed-off-by: NBoojin Kim <boojin.kim@samsung.com> Signed-off-by: NKukjin Kim <kgene.kim@samsung.com> Acked-by: NJassi Brar <jassisinghbrar@gmail.com> Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
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- 07 3月, 2012 1 次提交
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由 Will Deacon 提交于
On ARM, the PMU does not stop counting after an overflow and therefore IRQ latency affects the new counter value read by the kernel. This is significant for non-sampling runs where it is possible for the new value to overtake the previous one, causing the delta to be out by up to max_period events. Commit a737823d ("ARM: 6835/1: perf: ensure overflows aren't missed due to IRQ latency") attempted to fix this problem by allowing interrupt handlers to pass an overflow flag to the event update function, causing the overflow calculation to assume that the counter passed through zero when going from prev to new. Unfortunately, this doesn't work when overflow occurs on the perf_task_tick path because we have the flag cleared and end up computing a large negative delta. This patch removes the overflow flag from armpmu_event_update and instead limits the sample_period to half of the max_period for non-sampling profiling runs. Cc: <stable@vger.kernel.org> Signed-off-by: NMing Lei <ming.lei@canonical.com> Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 24 2月, 2012 3 次提交
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由 Ben Greear 提交于
This is useful for testing RX handling of frames with bad CRCs. Requires driver support to actually put the packet on the wire properly. Signed-off-by: NBen Greear <greearb@candelatech.com> Tested-by: NAaron Brown <aaron.f.brown@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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由 Bjorn Helgaas 提交于
Everybody uses the generic pcibios_resource_to_bus() supplied by the core now, so remove the ARCH_HAS_GENERIC_PCI_OFFSETS used during conversion. Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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由 Bjorn Helgaas 提交于
Tell the PCI core about host bridge address translation so it can take care of bus-to-resource conversion for us. CC: Russell King <linux@arm.linux.org.uk> Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
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- 23 2月, 2012 1 次提交
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由 Pawel Moll 提交于
This patch gets rid of the MMIO_P2V and __MMIO_P2V macros, defining constant virtual base for motherboard and tile peripherals instead. Additionally, in preparation for the new motherboard memory map, the motherboard peripherals are using base pointers calculated in runtime, instead of compile-time calculated values. Signed-off-by: NPawel Moll <pawel.moll@arm.com>
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- 22 2月, 2012 2 次提交
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由 Rob Herring 提交于
Now that most platforms don't need disable_fiq and arch_ret_to_user macros, we can remove the empty macros or empty entry-macro.S files. Signed-off-by: NRob Herring <rob.herring@calxeda.com> Acked-by: NJamie Iles <jamie@jamieiles.com> Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NTony Lindgren <tony@atomide.com> Acked-by: NLinus Walleij <linus.walleij@linaro.org> Acked-by: NRyan Mallon <rmallon@gmail.com> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NH Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: NShawn Guo <shawn.guo@linaro.org>
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由 Pavel Emelyanov 提交于
This one specifies where to start MSG_PEEK-ing queue data from. When set to negative value means that MSG_PEEK works as ususally -- peeks from the head of the queue always. When some bytes are peeked from queue and the peeking offset is non negative it is moved forward so that the next peek will return next portion of data. When non-peeking recvmsg occurs and the peeking offset is non negative is is moved backward so that the next peek will still peek the proper data (i.e. the one that would have been picked if there were no non peeking recv in between). The offset is set using per-proto opteration to let the protocol handle the locking issues and to check whether the peeking offset feature is supported by the protocol the socket belongs to. Signed-off-by: NPavel Emelyanov <xemul@parallels.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 16 2月, 2012 4 次提交
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由 Grant Likely 提交于
This patch removes the simplistic implementation of irq_domains and enables the powerpc infrastructure for all irq_domain users. The powerpc infrastructure includes support for complex mappings between Linux and hardware irq numbers, and can manage allocation of irq_descs. This patch also converts the few users of irq_domain_add()/irq_domain_del() to call irq_domain_add_legacy() instead. v3: Fix bug that set up too many irqs in translation range. v2: Fix removal of irq_alloc_descs() call in gic driver Signed-off-by: NGrant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Milton Miller <miltonm@bga.com> Tested-by: NOlof Johansson <olof@lixom.net>
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由 Olof Johansson 提交于
For files that include asm/processor.h but not asm/system.h: arch/arm/mach-msm/include/mach/uncompress.h: In function 'putc': arch/arm/mach-msm/include/mach/uncompress.h:48:3: error: implicit declaration of function 'smp_mb' [-Werror=implicit-function-declaration] In this case, smp_mb() is from the cpu_relax() call in the msm putc(). It likely went uncaught when the uncompress.h change went in since the defconfig didn't enable that code path, but later changes (e76f4750: ARM: debug: arrange Kconfig options more logically) resulted in the option being on for msm_defconfig and thus exposed it. Signed-off-by: NOlof Johansson <olof@lixom.net> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Javi Merino 提交于
dst_cache_ctrl affects bits 3, 1 and 0 of AWCACHE but it is a 3-bit field in the Channel Control Register (see Table 3-21 of the DMA-330 Technical Reference Manual) and should be programmed as such. Reference: <1320244259-10496-3-git-send-email-javi.merino@arm.com> Signed-off-by: NJavi Merino <javi.merino@arm.com> Acked-by: NJassi Brar <jassisinghbrar@gmail.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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由 Rabin Vincent 提交于
Bootup with lockdep enabled has been broken on v7 since b46c0f74 ("ARM: 7321/1: cache-v7: Disable preemption when reading CCSIDR"). This is because v7_setup (which is called very early during boot) calls v7_flush_dcache_all, and the save_and_disable_irqs added by that patch ends up attempting to call into lockdep C code (trace_hardirqs_off()) when we are in no position to execute it (no stack, MMU off). Fix this by using a notrace variant of save_and_disable_irqs. The code already uses the notrace variant of restore_irqs. Reviewed-by: NNicolas Pitre <nico@linaro.org> Acked-by: NStephen Boyd <sboyd@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: stable@vger.kernel.org Signed-off-by: NRabin Vincent <rabin@rab.in> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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- 10 2月, 2012 1 次提交
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由 Rob Herring 提交于
Add a sched_clock support for the sp804 timer. The clocksource timer can optionally initialize itself as sched_clock timer. Signed-off-by: NRob Herring <rob.herring@calxeda.com>
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- 09 2月, 2012 1 次提交
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由 Russell King 提交于
Change the sa1111 device id to be a bitmask. This allows us to specify the actual device, while allowing a single driver to bind to both PS2 devices. Acked-by: NNicolas Pitre <nico@linaro.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
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