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2007-07-25[SCSI] simscsi: convert to use the data buffer accessorsFUJITA Tomonori
- remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Tony Luck <tony.luck@intel.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-07-22x86_64: Rename CF Makefile variable in vdsoAndi Kleen
This avoids a conflict with sparse builds. Reported by Alexey Dobriyan, fix suggested by Al Viro Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22take declarations of enable_irq() et.al. to linux/interrupt.hAl Viro
Now that the last inlined instances are gone, all that is left to do is turning disable_irq_nosync on arm26 and m68k from defines to aliases and we are all set - we can make these externs in linux/interrupt.h uncoditional and kill remaining instances in asm/irq.h Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (60 commits) [ARM] 4524/1: S3C: Move register out of include/asm-arm/arch-s3c2410 [ARM] 4523/1: S3C: Remove FIFO_MAX from uncompression headers [ARM] 4522/1: S3C: split include/asm-arm/arch/memory.h [ARM] 4521/2: S3C: Reorganise VA mapping headers [ARM] 4520/1: S3C: Remove old VA values from static map [ARM] 4519/1: S3C: split S3C2400 values out of S3C24XX map.h [ARM] 4518/1: S3C: Rename watchdog configuration options [ARM] 4517/1: S3C: Fix debug macros for ARM926 output [ARM] 4516/1: S3C: Fix uncompressor serial output for ARM926 [ARM] 4515/1: S3C: Move uncompress code to plat-s3c [ARM] 4514/1: S3C: Rename DEBUG_S3C2410_PORT and DEBUG_S3C_UART [ARM] 4513/1: S3C: Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT [ARM] 4512/1: S3C: rename the debug macros for per-cpu updates [ARM] 4511/1: S3C: updated LLSERIAL Kconfig defines for CPU support [ARM] 4510/1: S3C: split debug-macro support into plat-s3c [ARM] 4509/1: S3C: Create initial arch/arm/plat-s3c [ARM] 4508/1: S3C: Move items to include/asm-arm/plat-s3c [ARM] 4461/1: MXC platform and i.MX31ADS core support [ARM] 4507/1: pxa2xx clock_event_device [ARM] 4497/1: Only allow safe cache configurations on ARMv6 and later ...
2007-07-22Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-ledsLinus Torvalds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds: leds: Convert from struct class_device to struct device leds: leds-gpio for ngw100 leds: Add warning printks in error paths leds: Fix trigger unregister_simple if register_simple fails leds: Use menuconfig objects II - LED leds: Teach leds-gpio to handle timer-unsafe GPIOs leds: Add generic GPIO LED driver
2007-07-22Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Clean up duplicate includes in drivers/macintosh/ [POWERPC] Quiet section mismatch warning on pcibios_setup [POWERPC] init and exit markings for hvc_iseries [POWERPC] Quiet section mismatch in hvc_rtas.c [POWERPC] Constify of_platform_driver match_table [POWERPC] hvcs: Make some things static and const [POWERPC] Constify of_platform_driver name [POWERPC] MPIC protected sources [POWERPC] of_detach_node()'s device node argument cannot be const [POWERPC] Fix ARCH=ppc builds [POWERPC] mv64x60: Use mutex instead of semaphore [POWERPC] Allow smp_call_function_single() to current cpu [POWERPC] Allow exec faults on readable areas on classic 32-bit PowerPC [POWERPC] Fix future firmware feature fixups function failure [POWERPC] fix showing xmon help [POWERPC] Make xmon_write accept a const buffer [POWERPC] Fix misspelled "CONFIG_CHECK_CACHE_COHERENCY" Kconfig option. [POWERPC] cell: CONFIG_SPE_BASE is a typo
2007-07-22x86_64: Fix xen section warningsAndi Kleen
Fix WARNING: vmlinux.o(.data+0x99): Section mismatch: reference to .init.text:xen_start_kernel (between 'startup_xen' and 'boot_gdt_descr') Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86_64: Fix paravirt compilationAndi Kleen
Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (77 commits) ACPI: Populate /sys/firmware/acpi/tables/ ACPI: create CONFIG_ACPI_DEBUG_FUNC_TRACE ACPI: update ACPI proc I/F removal schedule ACPI: update feature-removal-schedule.txt, /sys/firmware/acpi/namespace is gone ACPI: export ACPI events via acpi_mc_group multicast group ACPI: fix empty macros found by -Wextra ACPI: drivers/acpi/pci_link.c: lower printk severity sony-laptop: Fix event reading in sony-laptop sony-laptop: Add Vaio FE to the special init sequence sony-laptop: Make the driver use MSC_SCAN and a setkeycode and getkeycode key table. sony-laptop: Invoke _INI for SNC devices that provide it sony-laptop: Add support for recent Vaios Fn keys (C series for now) sony-laptop: map wireless switch events to KEY_WLAN sony-laptop: add new SNC handlers ACPI: thinkpad-acpi: add locking to brightness subdriver ACPI: thinkpad-acpi: bump up version to 0.15 ACPI: thinkpad-acpi: make EC-based thermal readings non-experimental ACPI: thinkpad-acpi: make sure DSDT TMPx readings don't return +128 ACPI: thinkpad-acpi: react to Lenovo ThinkPad differences in hot key ACPI: thinkpad-acpi: allow use of CMOS NVRAM for brightness control ...
2007-07-22x86_64: Remove outdated comment in boot decompressor MakefileAndi Kleen
64bit code in there now since some time. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86_64: Squash initial_code modpost warningsAndi Kleen
Get rid of warnings like WARNING: vmlinux.o(.bootstrap.text+0x1a8): Section mismatch: reference to .init.text:x86_64_start_kernel (between 'initial_code' and 'init_rsp') - Move initialization code into .text.head like i386 because modpost knows about this already - Mark initial_code .initdata Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86_64: fix section mismatch warning in init.cSam Ravnborg
Fix following warning: WARNING: vmlinux.o(.text+0x188ea): Section mismatch: reference to .init.text:__alloc_bootmem_core (between 'alloc_bootmem_high_node' and 'get_gate_vma') alloc_bootmem_high_node() is only used from __init scope so declare it __init. And in addition declare the weak variant __init too. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86_64: fix section mismatch warning in hpet.cSam Ravnborg
Fix following warnings: WARNING: vmlinux.o(.text+0x945e): Section mismatch: reference to .init.text:__set_fixmap (between 'hpet_arch_init' and 'hpet_mask_rtc_irq_bit') WARNING: vmlinux.o(.text+0x9474): Section mismatch: reference to .init.text:__set_fixmap (between 'hpet_arch_init' and 'hpet_mask_rtc_irq_bit') hpet_arch_init is only used from __init context so mark it __init. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22i386: Fix the K7 NMI watchdog checkbitBjörn Steinbrink
The performance counters on K7 are only 48 bits wide, so using bit 63 to check if the counter overflowed is wrong. Let's use bit 47 instead. Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Cc: Don Zickus <dzickus@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22i386: Handle P6s without performance counters in nmi watchdogAndi Kleen
I got an oops while booting a 32bit kernel on KVM because it doesn't implement performance counters used by the NMI watchdog. Handle this case. Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86: Replace NSC/Cyrix specific chipset access macros by inlined functions.Juergen Beisert
Due to index register access ordering problems, when using macros a line like this fails (and does nothing): setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88); With inlined functions this line will work as expected. Note about a side effect: Seems on Geode GX1 based systems the "suspend on halt power saving feature" was never enabled due to this wrong macro expansion. With inlined functions it will be enabled, but this will stop the TSC when the CPU runs into a HLT instruction. Kernel output something like this: Clocksource tsc unstable (delta = -472746897 ns) This is the 3rd version of this patch. - Adding missed arch/i386/kernel/cpu/mtrr/state.c Thanks to Andres Salomon - Adding some big fat comments into the new header file Suggested by Andi Kleen AK: fixed x86-64 compilation Signed-off-by: Juergen Beisert <juergen@kreuzholzen.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22i386: Do not include other cpus' interrupt 0 in nmi_watchdogKeith Owens
kstat_irqs(0) includes the count of interrupt 0 from all cpus, not just the current cpu. The updated interrupt 0 on other cpus can stop the nmi_watchdog from tripping, so only include the current cpu's int 0. Signed-off-by: Keith Owens <kaos@ocs.com.au> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22i386: Tune AMD Fam10h/11h like K8Andi Kleen
This mainly changes the nops for alternative, so not very revolutionary. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86_64: Set K8 CPUID flag for K8/Fam10h/Fam11hAndi Kleen
Previously this flag was only used on 32bit, but some shared code can use it now. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22i386: Fix cpu_llc_id section mismatch warningAndi Kleen
Fix WARNING: arch/i386/kernel/built-in.o(.text+0xdd0d): Section mismatch: reference to .init.data:cpu_llc_id (between 'set_cpu_sibling_map' and 'initialize_secondary') WARNING: arch/i386/kernel/built-in.o(.text+0xdd1b): Section mismatch: reference to .init.data:cpu_llc_id (between 'set_cpu_sibling_map' and 'initialize_secondary') Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86: Stop MCEs and NMIs during code patchingAndi Kleen
When a machine check or NMI occurs while multiple byte code is patched the CPU could theoretically see an inconsistent instruction and crash. Prevent this by temporarily disabling MCEs and returning early in the NMI handler. Based on discussion with Mathieu Desnoyers. Cc: Mathieu Desnoyers <compudj@krystal.dyndns.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86: Fix alternatives and kprobes to remap write-protected kernel textAndi Kleen
Reenable kprobes and alternative patching when the kernel text is write protected by DEBUG_RODATA Add a general utility function to change write protected text. The new function remaps the code using vmap to write it and takes care of CPU synchronization. It also does CLFLUSH to make icache recovery faster. There are some limitations on when the function can be used, see the comment. This is a newer version that also changes the paravirt_ops code. text_poke also supports multi byte patching now. Contains bug fixes from Zach Amsden and suggestions from Mathieu Desnoyers. Cc: Jan Beulich <jbeulich@novell.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Mathieu Desnoyers <compudj@krystal.dyndns.org> Cc: Zach Amsden <zach@vmware.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86_64: Use read and write crX in .c filesGlauber de Oliveira Costa
This patch uses the read and write functions provided at system.h for control registers instead of writting raw assembly over and over again in .c files. Functions to manipulate cr2 and cr8 were provided, as they were lacking. Also, removed some extra space after closing brackets Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22x86: i386-show-unhandled-signals-v3Masoud Asgharifard Sharbiani
This patch makes the i386 behave the same way that x86_64 does when a segfault happens. A line gets printed to the kernel log so that tools that need to check for failures can behave more uniformly between debug.show_unhandled_signals sysctl variable to 0 (or by doing echo 0 > /proc/sys/debug/exception-trace) Also, all of the lines being printed are now using printk_ratelimit() to deny the ability of DoS from a local user with a program like the following: main() { while (1) if (!fork()) *(int *)0 = 0; } This new revision also includes the fix that Andrew did which got rid of new sysctl that was added to the system in earlier versions of this. Also, 'show-unhandled-signals' sysctl has been renamed back to the old 'exception-trace' to avoid breakage of people's scripts. AK: Enabling by default for i386 will be likely controversal, but let's see what happens AK: Really folks, before complaining just fix your segfaults AK: I bet this will find a lot of silent issues Signed-off-by: Masoud Sharbiani <masouds@google.com> Signed-off-by: Andi Kleen <ak@suse.de> [ Personally, I've found the complaints useful on x86-64, so I'm all for this. That said, I wonder if we could do it more prettily.. -Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22Fix ppc64 mismergeAl Viro
Fix a mismerge in commit 8b6f50ef1d5cc86b278eb42bc91630fad455fb10: "spufs: make signal-notification files readonly for NOSCHED contexts", where structs got duplicated. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-22Merge branches 'at91', 'imx', 'iop', 'ixp', 'ks8695', 'misc', 'ns9xxx', ↵Russell King
'pxa' and 's3c' into devel
2007-07-22[ARM] 4524/1: S3C: Move register out of include/asm-arm/arch-s3c2410Ben Dooks
Move register and other definitions out of the include/asm-arm/arch-s3c2410 into the the arch directories of include/asm-arm/plat-s3c24xx and include/asm-arm/plat-s3c. This move is in preperation of the merging of s3c2400 and s3c6400. The following git mv commands are needed before this patch can be applied: git mv include/asm-arm/arch-s3c2410/regs-ac97.h include/asm-arm/plat-s3c/regs-ac97.h git mv include/asm-arm/arch-s3c2410/regs-adc.h include/asm-arm/plat-s3c/regs-adc.h git mv include/asm-arm/arch-s3c2410/regs-iis.h include/asm-arm/plat-s3c24xx/regs-iis.h git mv include/asm-arm/arch-s3c2410/regs-spi.h include/asm-arm/plat-s3c24xx/regs-spi.h git mv include/asm-arm/arch-s3c2410/regs-udc.h include/asm-arm/plat-s3c24xx/regs-udc.h git mv include/asm-arm/arch-s3c2410/udc.h include/asm-arm/plat-s3c24xx/udc.h Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4520/1: S3C: Remove old VA values from static mapBen Dooks
Remove the static maps for the LCD and USB devices. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4518/1: S3C: Rename watchdog configuration optionsBen Dooks
Rename the S3C24XX configuration options for the watchdog boot controls for moving to the arch/arm/plat-s3c moves. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4514/1: S3C: Rename DEBUG_S3C2410_PORT and DEBUG_S3C_UARTBen Dooks
Rename DEBUG_S3C2410_PORT to DEBUG_S3C_PORT as well as DEBUG_S3C2410_UART to DEBUG_S3C_UART as part of the updates to moving to plat-s3c for S3C base support. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4513/1: S3C: Rename CONFIG_S3C2410_LOWLEVEL_UART_PORTBen Dooks
Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT to be CONFIG_S3C_LOWLEVEL_UART_PORT as we move to using plat-s3c for base of S3C operations. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4511/1: S3C: updated LLSERIAL Kconfig defines for CPU supportBen Dooks
Update the Kconfig to create configuration options based on which CPUs are supported for the low level serial code. This means that the debug macros can be optimised for the type(s) of CPU that are being used. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4509/1: S3C: Create initial arch/arm/plat-s3cBen Dooks
Create the initial arch/arm/plat-s3c directory and start linking it into the arch/arm build heirarchy ready to receive the generic parts of the S3C24XX support to be used when adding S3C6400 devices. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4508/1: S3C: Move items to include/asm-arm/plat-s3cBen Dooks
This patch moves items of the s3c24xx support into a new plat-s3c directory for items that use the s3c24xx support but are not directly s3c24xx compatible, such as the s3c2400 and s3c6400. git mv commands: git mv include/asm-arm/arch-s3c2410/iic.h include/asm-arm/plat-s3c/iic.h git mv include/asm-arm/arch-s3c2410/nand.h include/asm-arm/plat-s3c/nand.h git mv include/asm-arm/arch-s3c2410/regs-iic.h include/asm-arm/plat-s3c/regs-iic.h git mv include/asm-arm/arch-s3c2410/regs-nand.h include/asm-arm/plat-s3c/regs-nand.h git mv include/asm-arm/arch-s3c2410/regs-rtc.h include/asm-arm/plat-s3c/regs-rtc.h git mv include/asm-arm/arch-s3c2410/regs-serial.h include/asm-arm/plat-s3c/regs-serial.h git mv include/asm-arm/arch-s3c2410/regs-timer.h include/asm-arm/plat-s3c/regs-timer.h git mv include/asm-arm/arch-s3c2410/regs-watchdog.h include/asm-arm/plat-s3c/regs-watchdog.h Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4461/1: MXC platform and i.MX31ADS core supportQuinn Jensen
This patch adds the foundation pieces for the Freescale MXC platforms, including i.MX2 and i.MX3 based systems. The bare-bones MX31 support in this patch boots to the rootdev panic with 8250 serial console configured "console=ttyS0,115200". It assumes that Redboot is the boot loader. Signed-off-by: Quinn Jensen <quinn.jensen@freescale.com> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[ARM] 4507/1: pxa2xx clock_event_deviceBill Gatliff
Reimplements arch/arm/mach-pxa/time.c using a clock_event_device based on OSMR0. Tested on PXA270, linux-2.6.22+arm:pxa patches. Signed-off-by: Bill Gatliff <bgat@billgatliff.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-22[POWERPC] Quiet section mismatch warning on pcibios_setupStephen Rothwell
WARNING: vmlinux.o(.text+0x1cefcc): Section mismatch: reference to .init.text:.pcibios_setup (between '.pci_setup' and '.pci_init') pci_setup() is marked __devinit and calls pcibios_setup. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] MPIC protected sourcesBenjamin Herrenschmidt
Some HW platforms, such as the new cell blades, requires some MPIC sources to be left alone by the operating system. This implements support for a "protected-sources" property in the mpic controller node containing a list of source numbers to be protected against operating system interference. For those interested in the gory details, the MPIC on the southbridge of those blades has some of the processor outputs routed to the cell, and at least one routed as a GPIO to the service processor. It will be used in the GA product for routing some of the southbridge error interrupts to the service processor which implements some of the RAS stuff, such as checkstopping when fatal errors occurs before they can propagate. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] of_detach_node()'s device node argument cannot be constSegher Boessenkool
...since it modifies it (when it sets the OF_DETACHED flag). Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] mv64x60: Use mutex instead of semaphoreChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] Allow smp_call_function_single() to current cpuAvi Kivity
This removes the requirement for callers to get_cpu() to check in simple cases. i386 and x86_64 already received a similar treatment. Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] Allow exec faults on readable areas on classic 32-bit PowerPCPaul Mackerras
Classic 32-bit PowerPC CPUs, and the early 64-bit PowerPC CPUs, don't provide a way to prevent execution from readable pages, that is, the MMU doesn't distinguish between data reads and instruction reads, although a different exception is taken for faults in data accesses and instruction accesses. Commit 9ba4ace39fdfe22268daca9f28c5df384ae462cf, in the course of fixing another bug, added a check that meant that a page fault due to an instruction access would fail if the vma did not have the VM_EXEC flag set. This gives an inconsistent enforcement on these CPUs of the no-execute status of the vma (since reading from the page is sufficient to allow subsequent execution from it), and causes old versions of ppc32 glibc (2.2 and earlier) to fail, since they rely on executing the word before the GOT but don't have it marked executable. This fixes the problem by allowing execution from readable (or writable) areas on CPUs which do not provide separate control over data and instruction reads. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Jon Loeliger <jdl@freescale.com>
2007-07-22[POWERPC] Fix future firmware feature fixups function failureMichael Neuling
Move firmware feature initialisation from pSeries_init_early to the earlier pSeries_probe_hypertas so they are initialised before firmware feature fixups are applied. Currently firmware feature sections are only used for iSeries which initialises the these features much earlier. This is a bug in waiting on pSeries. Also adds some whitespace fixups. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] fix showing xmon helpIshizaki Kou
In some configuration, xmon help string is larger than xmon_printf buffer. We need not to use printf. This patch adds xmon_puts and change to use it to show help string. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] Make xmon_write accept a const bufferIshizaki Kou
Because xmon_write doesn't change the buffer, we should add 'const' qualifier to the argument which points it. Signed-off-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] Fix misspelled "CONFIG_CHECK_CACHE_COHERENCY" Kconfig option.Robert P. J. Day
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] cell: CONFIG_SPE_BASE is a typoGeert Uytterhoeven
The config symbol for SPE support is called CONFIG_SPU_BASE, not CONFIG_SPE_BASE. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22Pull misc into release branchLen Brown
Conflicts: Documentation/feature-removal-schedule.txt
2007-07-22Pull bugzilla-7880 into release branchLen Brown
2007-07-21Merge branch 'master' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC64]: ERROR: "sys_ioctl" [arch/sparc64/solaris/solaris.ko] undefined! [SPARC32]: Make PAGE_SHARED a read-mostly variable. [SPARC32]: Take enable_irq/disable_irq out of line. [SPARC32]: clean include/asm-sparc/irq.h [SPARC32]: Fix rounding errors in ndelay/udelay implementation.
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