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* [PATCH] bitops: arm: use generic bitopsAkinobu Mita2006-03-261-136/+10
| | | | | | | | | | | | | | | | | | | | - remove __{,test_and_}{set,clear,change}_bit() and test_bit() - if __LINUX_ARM_ARCH__ < 5 - remove ffz() - remove __ffs() - remove generic_fls() - remove generic_ffs() - remove generic_fls64() - remove sched_find_first_bit() - remove generic_hweight{32,16,8}() Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] arm: fix undefined reference to generic_flsAkinobu Mita2006-03-261-1/+30
| | | | | | | | | This patch defines constant_fls() instead of removed generic_fls(). Signed-off-by: Akinobu Mita <mita@miraclelinux.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-03-257-86/+232
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 3030/2: fix permission check in the obscur cmpxchg syscall [ARM] nommu: rename compressed/head.S symbols to a new style [ARM] select TLS_REG_EMUL and NEEDS_SYSCALL_FOR_CMPXCHG [ARM] nommu: Move hardware page table definitions to pgtable-hwdef.h [ARM] Move read of processor ID out of lookup_processor_type() [ARM] Fix typo in tlbflush.h [ARM] noMMU: removes TLB codes in nommu mode [ARM] noMMU: block sys_fork in nommu mode [ARM] 3399/1: Fix link problem when CONFIG_PRINTK is disabled [ARM] 3398/1: Fix the VFP registers loading/storing base address [ARM] 3397/1: AT91RM9200 Header update [ARM] 3385/1: Battery support for sharp zaurus sl-5500 (collie) [ARM] SMP: don't set cpu_*_map in smp_prepare_boot_cpu include/linux/clk.h is betraying its ARM origins [ARM] Move enable_irq and disable_irq to assembler.h [ARM] 3391/1: use PLAT8250_DEV_PLATFORM{,1} for platform device id instead of 0/1
| * Merge nommu treeRussell King2006-03-255-80/+111
| |\ | | | | | | | | | | | | | | | Fix merge conflict in arch/arm/mm/proc-xscale.S Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] nommu: Move hardware page table definitions to pgtable-hwdef.hRussell King2006-03-213-80/+93
| | | | | | | | | | | | | | | | | | | | | Move the hardware PMD and PTE page table definitions from pgtable.h into pgtable-hwdef.h, and include pgtable-hwdef.h as necessary. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] Fix typo in tlbflush.hRussell King2006-03-211-1/+1
| | | | | | | | | | | | | | | | | | s/CONFIG_MMY/CONFIG_MMU/ Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] noMMU: removes TLB codes in nommu modeHyok S. Choi2006-03-212-0/+18
| | | | | | | | | | | | | | | | | | | | | This patch removes TLB related codes in nommu mode. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3397/1: AT91RM9200 Header updateAndrew Victor2006-03-251-1/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Andrew Victor This patch updates the hardware header to include definitions for the Memory Controller registers. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Move enable_irq and disable_irq to assembler.hRussell King2006-03-231-5/+22
| | | | | | | | | | | | | | | | | | | | | | | | 5d25ac038a317d454a4321cba955f756400835a5 broke VFP builds due to enable_irq not being defined as an assembly macro. Move it to assembler.h so everyone can use it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notificationsDavide Libenzi2006-03-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement the half-closed devices notifiation, by adding a new POLLRDHUP (and its alias EPOLLRDHUP) bit to the existing poll/select sets. Since the existing POLLHUP handling, that does not report correctly half-closed devices, was feared to be changed, this implementation leaves the current POLLHUP reporting unchanged and simply add a new bit that is set in the few places where it makes sense. The same thing was discussed and conceptually agreed quite some time ago: http://lkml.org/lkml/2003/7/12/116 Since this new event bit is added to the existing Linux poll infrastruture, even the existing poll/select system calls will be able to use it. As far as the existing POLLHUP handling, the patch leaves it as is. The pollrdhup-2.6.16.rc5-0.10.diff defines the POLLRDHUP for all the existing archs and sets the bit in the six relevant files. The other attached diff is the simple change required to sys/epoll.h to add the EPOLLRDHUP definition. There is "a stupid program" to test POLLRDHUP delivery here: http://www.xmailserver.org/pollrdhup-test.c It tests poll(2), but since the delivery is same epoll(2) will work equally. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] AT91RM9200 Ethernet driverAndrew Victor2006-03-241-0/+138
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the Ethernet controller integrated in the Atmel AT91RM9200 SoC processor. Changes since the previous submission (01/02/2006) are: - Make use of the clk.h clock infrastructure. - The multicast hash function is not crc32. [Patch by Pedro Perez] Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | | [PATCH] remove ISA legacy functions: remove the helpersAl Viro2006-03-241-36/+0
|/ / | | | | | | | | | | | | | | | | | | | | | | unused isa_...() helpers removed. Adrian Bunk: The asm-sh part was rediffed due to unrelated changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-03-2271-525/+816
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: (45 commits) [ARM] 3389/1: typo and grammar fix [ARM] 3386/1: AT91RM9200 Clock update [ARM] 3384/1: AT91RM9200: Timer [ARM] 3382/1: ixp2000: unify defconfigs [ARM] 3381/1: ixp2000: fix slowport write timing control register fields [ARM] 3380/1: ixp2000: simplify ixdp2x00_master_npu() check [ARM] 3379/1: ixp2000: use generic 8250 debug macros [ARM] 3378/1: ixp2000: fix gpio interrupt handling [ARM] Quieten spurious IRQ detection [ARM] Use kcalloc to allocate counter_config array rather than kmalloc [ARM] Oprofile: dynamically allocate counter_config [ARM] Oprofile: Convert semaphore to mutex [ARM] 3376/2: S3C2410 - update defconfig [ARM] 3375/1: S3C2440 - fix osiris machine build [ARM] 3374/1: ep93xx: gpio interrupt support [ARM] 3361/1: S3C24XX - add USB bus clock source [ARM] 3360/1: S3C2440 - add set rate methods and camera clock [ARM] 3359/1: S3C24XX - add support for clk_set_rate [ARM] Convert kmalloc+memset to kzalloc [ARM] 3373/1: move uengine loader to arch/arm/common ...
| * | [ARM] 3381/1: ixp2000: fix slowport write timing control register fieldsLennert Buytenhek2006-03-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek The original version of the chip docs had the PW and SU fields in the slowport write timing control register accidentally reversed. This is mentioned in the errata (documentation change #4) and fixed in newer docs. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3380/1: ixp2000: simplify ixdp2x00_master_npu() checkLennert Buytenhek2006-03-221-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek On the IXDP2x00s, the NPU that is PCI master is always the egress (i.e. 'master') NPU. At least on the IXDP2800, both NPUs have flash, so the ixp2000_has_flash() check in ixdp2x00_master_npu() is useless. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3379/1: ixp2000: use generic 8250 debug macrosLennert Buytenhek2006-03-221-15/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek The xscale UART in the ixp2000 is basically just an 8250 UART (with some extra bits and pieces), so we can use the generic 8250 debug macros on the ixp2000. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Quieten spurious IRQ detectionRussell King2006-03-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Only issue a "nobody cared" warning after 99900 spurious interrupts. This avoids the occasional spurious interrupt causing warnings, as per x86. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3374/1: ep93xx: gpio interrupt supportLennert Buytenhek2006-03-212-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Add GPIO interrupt support for the first 16 GPIO lines (port A and B.) Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3373/1: move uengine loader to arch/arm/commonLennert Buytenhek2006-03-211-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Move the uengine loader from arch/arm/mach-ixp2000 to arch/arm/common so that ixp23xx can use it too. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3371/1: ep93xx: gpio supportLennert Buytenhek2006-03-212-0/+108
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Add support for setting the direction of and getting/setting the value of the 64 GPIO lines. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3369/1: ep93xx: add core cirrus ep93xx supportLennert Buytenhek2006-03-2115-0/+500
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek This patch adds support for the Cirrus ep93xx series of CPUs. The ep93xx is an ARM920T based CPU with two VICs, PL010 based UARTs, IrDA, MaverickCrunch floating point coprocessor, between 24 and 64 GPIOs, ethernet, OHCI USB and, depending on the model, pcmcia, raster engine, graphics accelerator, IDE controller and a bunch of other stuff. This patch adds the core ep93xx support code, and support for the Glomation GESBC-9312-sx and the Technologic Systems TS-72xx SBCs. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3349/1: ixp4xx exp bus definesAlessandro Zummo2006-03-211-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Alessandro Zummo This patch adds a few defines that are useful to configure the CS regions on ixp4xx. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: OEyvind Repvik <oyvind@repvik.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3346/1: Fix udelay() for HZ values different from 100Peter Teichmann2006-03-211-5/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Peter Teichmann Currently, if the kernels HZ value is greater than 100, delays with the udelay function are too short. This can cause trouble for instance with the zd1201 usb wlan driver. This patch suggests a solution that keeps the overhead small and maintains (hopefully) sufficient resolution. Signed-off-by: Peter Teichmann Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3334/1: Add support for IXDP28x5 platformsDeepak Saxena2006-03-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Deepak Saxena This patch adds support for Intel's IXDP28x5 platform. This is just and IXDP2801 with a new CPU rev but the bootloader has been updated to reflect a new machine ID so we just build support for it by default when we build IXDP2801. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3333/1: S3C2XX - add dclk and clkout clock supportBen Dooks2006-03-211-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks Add enable and set_parent calls for the dclk and clkout clocks. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3327/1: S3C2410 - add osiris machine supportBen Dooks2006-03-212-0/+66
| | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks Support for Simtec IM2440D20 CPU modules (Osiris) Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3261/2: remove phys_ram from struct machine_desc (part 3)Nicolas Pitre2006-03-211-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Nicolas Pitre This field is redundent since it must be equal to PHYS_OFFSET anyway. There is no reference to it anymore so remove it at last. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Collect Primecell PL01x-based debug implementations togetherRussell King2006-03-214-51/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | Several ARM machine implementations used a PL01x primecell compatible serial port for debugging purposes, and indepdently implemented the low level debug macros every time. Provide a common implementation and convert these implementations to use this version. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Collect 8250-based debug implementations togetherRussell King2006-03-218-103/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | Several ARM machine implementations used an 8250 compatible port for debugging purposes, and indepdently implemented the low level debug macros every time. Provide a common implementation and convert these implementations to use this version. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Fix SA1100 debug-macros.SRussell King2006-03-211-0/+1
| | | | | | | | | | | | | | | | | | This needs asm/hardware.h - include it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Adapt vic.c to allow for multiple VICs in a system.Russell King2006-03-211-1/+1
| | | | | | | | | | | | | | | | | | | | | Some SoCs have multiple VIC devices. Adapt the generic vic code to allow multiple implementations to be handled. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Rename chipdata to 'base' and make it an iomem pointerRussell King2006-03-211-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | In all current use cases, "chipdata" is used to store an iomem address. Mark it with __iomem, and rename it to 'base'. Leave the accessor macros alone. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Remove asm/arch/irq.hRussell King2006-03-216-85/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | asm/arch/irq.h used to be included from asm/irq.h, but was removed from the ARM kernel a long time ago. Consequently, the contents of asm/arch/irq.h (which mostly contain a definition for fixup_irq()) have not been used. Hence, remove asm/arch/irq.h. Some machine support files incorrectly included this file, making little or no use of the contents. Move the contents to a local include file, and remove those include statements as well. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] Move HZ definition into KconfigRussell King2006-03-2123-252/+1
| |/ | | | | | | | | | | | | Move the HZ definition into Kconfig, and set appropriate defaults for platforms. Remove mostly empty asm/arch/param.h include file. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge with ↵Jaroslav Kysela2006-03-221-1/+1
|\ \ | |/ | | | | rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
| * [ARM] Fix cosmetic typo in asm/irq.hRussell King2006-03-201-1/+1
| | | | | | | | | | | | The IRQ resource flags are IORESOURCE_IRQ not IRQRESOURCE_IRQ. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ALSA] Fix snd_xxx_t typedefsTakashi Iwai2006-03-221-2/+2
|/ | | | | | | | Modules: PXA Mainstone driver,CX88 driver,SAA7134 driver Replace snd_xxx_t typedefs with explicit structs. Signed-off-by: Takashi Iwai <tiwai@suse.de>
* [ARM] 3364/1: [cleanup] warning fix - definitions for enable_hlt and disable_hltBen Dooks2006-03-151-0/+3
| | | | | | | | | | | Patch from Ben Dooks The enable_hlt and disable_hlt should be declared in include/asm/setup.h. This fixes sparse errors from arch/arm/kernel/process.c Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] iwmmxt thread state alignmentRussell King2006-03-122-2/+4
| | | | | | | | | This patch removes the reliance of iwmmxt on hand coded alignments. Since thread_info is always 8K aligned, specifying that fpstate is 8-byte aligned achieves the same effect without needing to resort to hand coded alignments. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3352/1: DSB required for the completion of a TLB maintenance operationCatalin Marinas2006-03-071-0/+6
| | | | | | | | | | | | | | | | Patch from Catalin Marinas Chapter B2.7.3 in the latest ARM ARM (with v6 information) states that the completion of a TLB maintenance operation is only guaranteed by the execution of a DSB (Data Syncronization Barrier, formerly Data Write Barrier or Drain Write Buffer). Note that a DSB is only needed in the flush_tlb_kernel_* functions since the completion is guaranteed by a mode change (i.e. switching back to user mode) for the flush_tlb_user_* functions. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3325/2: GPIO function to control multi-drive (open collector) capabilityAndrew Victor2006-02-221-0/+1
| | | | | | | | | | | | | | | | | | | Patch from Andrew Victor This patch adds the at91_set_multi_drive() function to enable/disable the multi-drive (open collector) pin capability on the AT91RM9200 processor. This is necessary to fix the UDC (USB Gadget) driver for the AT91RM9200 board as it will not allow the board reset line to be pulled low if the pullup is not driven as an open collector output as the boards are wired to the USB connector on both the DK/EK. This version of the patch updates it to 2.6.16-rc4. Orignal patch by Jeff Warren. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3343/1: NAS100d: Fix incorrect I2C pin assignmentAlessandro Zummo2006-02-221-2/+2
| | | | | | | | | | | | Patch from Alessandro Zummo The I2C pin assignment for the Iomega NAS100d board was incorrect. This patch fixes it. The correct assignment has now been tested using the new RTC class and a new driver for the RTC on the NAS100d. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-02-172-3/+8
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| * [ARM] 3339/1: ARM EABI: make unmuxed syscalls visibleNicolas Pitre2006-02-161-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Nicolas Pitre With EABI the multiplex sys_ipc and sys_socketcall syscalls are unavailable and their support code even removed from the compiled kernel, and the new unmuxed syscalls must be used instead. Make those syscall numbers visible. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Fix SMP initialisation oopsRussell King2006-02-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A change to the SMP initialisation caused the following oops: CPU1: Booted secondary processor CPU1: D VIPT write-back cache CPU1: I cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets CPU1: D cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets <7>Calibrating delay loop... 83.14 BogoMIPS (lpj=415744) <1>Unable to handle kernel NULL pointer dereference at virtual address 0000001c ... PC is at enqueue_task+0x1c/0x64 LR is at activate_task+0xcc/0xe4 SMP initialisation now requires cpu_possible_map to be initialised in setup_arch(). Move this from smp_prepare_cpus() to smp_init_cpus() and call it from our setup_arch() if CONFIG_SMP is enabled. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] add asm-generic/mman.hMichael S. Tsirkin2006-02-151-30/+1
|/ | | | | | | | | | | | | | Make new MADV_REMOVE, MADV_DONTFORK, MADV_DOFORK consistent across all arches. The idea is to make it possible to use them portably even before distros include them in libc headers. Move common flags to asm-generic/mman.h Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] madvise MADV_DONTFORK/MADV_DOFORKMichael S. Tsirkin2006-02-141-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Currently, copy-on-write may change the physical address of a page even if the user requested that the page is pinned in memory (either by mlock or by get_user_pages). This happens if the process forks meanwhile, and the parent writes to that page. As a result, the page is orphaned: in case of get_user_pages, the application will never see any data hardware DMA's into this page after the COW. In case of mlock'd memory, the parent is not getting the realtime/security benefits of mlock. In particular, this affects the Infiniband modules which do DMA from and into user pages all the time. This patch adds madvise options to control whether memory range is inherited across fork. Useful e.g. for when hardware is doing DMA from/into these pages. Could also be useful to an application wanting to speed up its forks by cutting large areas out of consideration. Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il> Acked-by: Hugh Dickins <hugh@veritas.com> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3326/1: H1940 - Control latchesBen Dooks2006-02-101-0/+64
| | | | | | | | | | | Patch from Ben Dooks Define the bits for the two board control latches that control various items on the H1940 iPAQ. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3279/1: OMAP: 1/3 Fix low-level io initTony Lindgren2006-02-081-1/+5
| | | | | | | | | | | | Patch from Tony Lindgren This patch adds the missing cache flushes to common low-level init that are needed to access the IO region. These flushes are normally done at the end of devicemaps_init(), but we need to detect the OMAP core type early. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3311/1: clean up include/asm-arm/mutex.hNicolas Pitre2006-02-081-66/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Nicolas Pitre Since: if (unlikely(__res || __ex_flag)) produces worse code on ARM than: if (unlikely(__res | __ex_flag)) I therefore made it more explicit: __res |= __ex_flag; if (unlikely(__res != 0)) so it is not seen as a typo again. Also made everything static inline rather than macros for better readability (both produce the same code after all). And finally added missing \t from multi-line assembly code. Signed-off-by: Nicolas Pitre <nico@cam.org> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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