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2011-09-19Merge linux-linaro-3.0-2011.07-1-android-1 into..Ulf Hansson
..linux-linaro-3.0-2011.07-1_glk3.0 Conflicts: arch/arm/common/Makefile drivers/misc/Kconfig drivers/misc/Makefile kernel/printk.c Change-Id: I126f34edb1879981909072beefb2738cad26f951
2011-09-19Boottime - A tool for automatic measurement of kernel and possible boot ↵Jonas Aaberg
loader boot time. The overhead is very low and the results will be found under sysfs/bootime, as well as detailed results in debugfs under boottime/. The bootgraph* files are compatible with scripts/bootgraph.pl. The reason for this patch is to provide data (sysfs/boottime) suitable for automatic testcases as well as help for developers to reduce the boot time (debugfs). Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com> Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/2760 Change-Id: Id8ea7226b3f1f783448962195193b90699d32fc6 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/3174 Tested-by: Mian Yousaf KAUKAB <mian.yousaf.kaukab@stericsson.com> Reviewed-by: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com> Signed-off-by: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2011-07-25Merge branch 'upstream/linaro-3.0' into linaro-android-3.0John Stultz
2011-07-22Merge remote-tracking branch 'rmk/fixes' into linaro-3.0Nicolas Pitre
2011-07-21ARM: GIC: avoid routing interrupts to offline CPUsRussell King
The irq_set_affinity() method can be called with masks which include offline CPUs. This allows offline CPUs to have interrupts routed to them by writing to /proc/irq/*/smp_affinity after hotplug has taken a CPU offline. Fix this by ensuring that we select a target CPU present in both the required affinity and the online CPU mask. Ensure that we return IRQ_SET_MASK_OK (which happens to be 0) on success to ensure generic code copies the new mask into the irq_data structure. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-21ARM: CPU hotplug: fix abuse of irqdesc->nodeRussell King
irqdesc's node member is supposed to mark the numa node number for the interrupt. Our use of it is non-standard. Remove this, replacing the functionality with a test of the affinity mask. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-12Merge commit 'v3.0-rc7' into android-3.0Colin Cross
2011-07-04ARM: dmabounce: no need to check dev->bus type in needs_bounce functionRussell King
As the needs_bounce function is passed at DMA bounce register time, we already know what the device bus type is, so we don't need to check it each time the needs_bounce function is called. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-04ARM: dmabounce: get rid of dma_needs_bounce global functionRussell King
Pass the device type specific needs_bounce function in at dmabounce register time, avoiding the need for a platform specific global function to do this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-03ARM: dmabounce: correct unmap_single dev_dbgRussell King
DMA addresses should not be casted to void * for printing. Fix that to be consistent with the rest of the file. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-03ARM: dmabounce: check pointer against NULL not 0Russell King
Pointers should be checked against NULL rather than 0, otherwise we get sparse warnings. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-03ARM: dmabounce: remove useless pr_errRussell King
We already check that dev != NULL, so this won't be reached. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-03ARM: dmabounce: move decision for bouncing into __dma_map_page()Russell King
Move the decision whether to bounce into __dma_map_page(), before the check for high pages. This avoids triggering the high page check for devices which aren't using dmabounce. Fix the unmap path to cope too. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-03ARM: dmabounce: separate out decision to bounceRussell King
Move the decision to perform DMA bouncing out of map_single() into its own stand-alone function. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-03ARM: dmabounce: avoid needless valid_dma_direction() checkRussell King
This check is done at the DMA API level, so there's no point repeating it here. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-03ARM: dma-mapping: define dma_(un)?map_single in terms of dma_(un)?map_pageRussell King
Use dma_map_page()/dma_unmap_page() internals to handle dma_map_single() and dma_unmap_single(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-03ARM: dmabounce: fix map_single() error return valueRussell King
When map_single() is unable to obtain a safe buffer, we must return the dma_addr_t error value, which is ~0 rather than 0. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-06-14ARM: common: fiq_debugger: Fix build for 2.6.39 irq changesColin Cross
Signed-off-by: Colin Cross <ccross@android.com> Change-Id: I68147c0a17f9cd1b7693826754edc55b1bb09592
2011-06-14ARM: fiq_debugger: Add help commandDmitry Shmidt
Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
2011-06-14ARM: fiq_debugger: make fiq_debugger be in debug mode by defaultDima Zavin
Adds a config option that controls whether or not the console is on at boot, defaulting to no. Change-Id: Id4a3cad1c9dd4fb3c2b8c2298ca5d385a8bd0f8d Signed-off-by: Dima Zavin <dima@android.com>
2011-06-14[ARM] fiq_debugger: Print local timer irqs countRebecca Schultz Zavin
Prints the number of local timer irqs on each cpu when the irqs command is executed. Change-Id: Ic70fa9f528d98996fabb2d0cc80e937c5b239c1a Signed-off-by: Rebecca Schultz Zavin <rebecca@android.com>
2011-06-14[ARM] fiq glue: Align fiq stacksColin Cross
Change-Id: I956f05d0b0ce48572e611765e56a439dc036c052 Signed-off-by: Colin Cross <ccross@android.com>
2011-06-14[ARM] fiq debugger: Allow selection of target cpuColin Cross
Change-Id: I676bac08ba12dfa506aea16800fc80432b4bc83d Signed-off-by: Colin Cross <ccross@android.com>
2011-06-14ARM: fiq debugger: Add tty to fiq debuggerColin Cross
Change-Id: I80347cdb70cda104b96562c63f972c1f217e3822 Signed-off-by: Colin Cross <ccross@google.com>
2011-06-14ARM: Add generic fiq serial debuggerIliyan Malchev
Change-Id: Ibb536c88f0dbaf4766d0599296907e35e42cbfd6 Signed-off-by: Iliyan Malchev <malchev@google.com> Signed-off-by: Arve Hjønnevåg <arve@android.com>
2011-06-14ARM: Add fiq_glueArve Hjønnevåg
Change-Id: I27d2554e07d9de204e0a06696d38db51608d9f6b Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Colin Cross <ccross@android.com>
2011-05-25Merge branch 'for-rmk' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into devel-stable Conflicts: arch/arm/Kconfig arch/arm/mach-exynos4/mach-nuri.c
2011-05-23Merge branch 'devel-stable' into for-linusRussell King
Conflicts: arch/arm/Kconfig arch/arm/mach-ns9xxx/include/mach/uncompress.h
2011-05-23Merge branches 'consolidate-clksrc', 'consolidate-flash', ↵Russell King
'consolidate-generic', 'consolidate-smp', 'consolidate-stmp' and 'consolidate-zones' into consolidate
2011-05-23clockevents: ARM sp804: obtain sp804 timer rate via clksRussell King
This allows platforms to specify the rate of the SP804 clockevent via the clk subsystem. While ARM boards clock these at 1MHz, BCMRing also has SP804 timers but are clocked at different rates. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clockevents: ARM sp804: allow clockevent name to be specifiedRussell King
This allows platforms to specify the clcokevent name upon registration. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: ARM sp804: obtain sp804 timer rate via clksRussell King
This allows platforms to specify the rate of the SP804 clocksource via the clk subsystem. While ARM boards clock these at 1MHz, BCMRing also has SP804 timers but are clocked at different rates. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: ARM sp804: allow clocksource name to be specifiedRussell King
This allows platforms to specify the clocksource name upon registration, which is necessary should they wish to register more than one sp804 clocksource. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-23clocksource: convert ARM 32-bit down counting clocksourcesRussell King
Convert SP804, MXC, Nomadik and Orion 32-bit down-counting clocksources to generic mmio clocksource infrastructure. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Alessandro Rubini <rubini@unipv.it> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Lennert Buytenhek <kernel@wantstofly.org> Acked-by: Nicolas Pitre <nico@fluxnic.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizesRussell King
Rather than each platform providing its own function to adjust the zone sizes, use the new ARM_DMA_ZONE_SIZE definition to perform this adjustment. This ensures that the actual DMA zone size and the ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS definitions are consistent with each other, and moves this complexity out of the platform code. Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-05-12ARM: S5P6442: Removing ARCH_S5P6442Kukjin Kim
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-05-11ARM: GIC: Convert GIC library to use the IO relaxed operationsSantosh Shilimkar
The GIC register accesses today make use of readl()/writel() which prove to be very expensive when used along with mandatory barriers. This mandatory barriers also introduces an un-necessary and expensive l2x0_sync() operation. On Cortex-A9 MP cores, GIC IO accesses from CPU are direct and doesn't go through L2X0 write buffer. A DSB before writel_relaxed() in gic_raise_softirq() is added to be compliant with the Barrier Litmus document - the mailbox scenario. Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com>
2011-05-11ARM: gic: use handle_fasteoi_irq for SPIsWill Deacon
Currently, the gic uses handle_level_irq for handling SPIs (Shared Peripheral Interrupts), requiring active interrupts to be masked at the distributor level during IRQ handling. On a virtualised system, only the CPU interfaces are virtualised in hardware. Accesses to the distributor must be trapped by the hypervisor, adding latency to the critical interrupt path in Linux. This patch modifies the GIC code to use handle_fasteoi_irq for handling interrupts, which only requires us to signal EOI to the CPU interface when handling is complete. Cascaded IRQ handling is also updated to use the chained IRQ enter/exit functions to honour the flow control of the parent chip. Note that commit 846afbd1 ("GIC: Dont disable INT in ack callback") broke cascading interrupts by forgetting to add IRQ masking. This is no longer an issue because the unmask call is now unnecessary. Tested on Versatile Express and Realview EB (1176 w/ cascaded GICs). Tested-and-reviewed-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org> Tested-and-acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
2011-04-24ARM: Use struct syscore_ops instead of sysdevs for PM in common codeRafael J. Wysocki
Convert some ARM architecture's common code to using struct syscore_ops objects for power management instead of sysdev classes and sysdevs. This simplifies the code and reduces the kernel's memory footprint. It also is necessary for removing sysdevs from the kernel entirely in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-04-13Merge branch 'fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into fixes
2011-04-10ARM: 6872/1: arch:common:Makefile Remove unused config in the Makefile.Justin P. Mattock
The patch below removes an unused config variable found by using a kernel cleanup script. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-29arm: Fold irq_set_chip/irq_set_handlerThomas Gleixner
Use irq_set_chip_and_handler() instead. Converted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29arm: Reorder irq_set_ function callsThomas Gleixner
Reorder irq_set_chip() irq_set_chip_data() irq_set_handler() to irq_set_chip() irq_set_handler() irq_set_chip_data() so the next patch can combine irq_set_chip() and irq_set_handler() to irq_set_chip_and_handler(). Automated conversion with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29arm: Cleanup the irq namespaceThomas Gleixner
Convert to the new function names. Automated with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-29arm: gic: Use proper accessor functionsThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-16Merge branch 'misc' into develRussell King
Conflicts: arch/arm/Kconfig
2011-03-09ARM: 6777/1: gic: Add hooks for architecture specific extensionsSantosh Shilimkar
Few architectures combine the GIC with an external interrupt controller. On such systems it may be necessary to update both the GIC registers and the external controller's registers to control IRQ behavior. This can be addressed in couple of possible methods. 1. Export common GIC routines along with 'struct irq_chip gic_chip' and allow architectures to have custom function by override. 2. Provide architecture specific function pointer hooks within GIC library and leave platforms to add the necessary code as part of these hooks. First one might be non-intrusive but have few shortcomings like arch needs to have there own custom gic library. Locks used should be common since it caters to same IRQs etc. Maintenance point of view also it leads to multiple file fixes. The second probably is cleaner and portable. It ensures that all the common GIC infrastructure is not touched and also provides archs to address their specific issue. Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Colin Cross <ccross@android.com> Tested-by: Colin Cross <ccross@android.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-26ARM: 6762/1: Update number of VIC for S5P6442 and S5PC100Kukjin Kim
The S5P6442 and S5PC100 SoCs have 4 VICs. However, default VIC number is defined 2 in arch/arm/common. So can be happened some problem on it. Basically, it requires for suspend and resume. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-26ARM: 6761/1: Update number of VIC for S5PV210Kukjin Kim
The S5PV210 SoC have 4 VICs. It requires for suspend and resume. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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