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2005-09-01[ARM] Fix ARMv6 page table bitsRussell King
We weren't explicitly setting the page table bits we desired in user_prot in the protection table, which resulted in the user mappings for v6 CPUs being marked global. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01[ARM] Simplify setup_mm_for_reboot()Russell King
No point checking what CPU architecture level we have each time within the loop, so precompute the base PMD flags outside the loop. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01[ARM] Convert open-coded __pmd_populate to use inline functionRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01[ARM] 2864/1: VST aka CONFIG_NO_IDLE_HZ support for SA11x0Nicolas Pitre
Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01[ARM] 2863/1: clarify comment in PXA2xx and SA1x00 timer codeNicolas Pitre
Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01[ARM] 2862/1: VST aka CONFIG_NO_IDLE_HZ support for PXA2xxNicolas Pitre
Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-01[ARM] 2865/2: fix fadvise64_64 syscall argument passingNicolas Pitre
Patch from Nicolas Pitre The prototype for sys_fadvise64_64() is: long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice) The argument list is therefore as follows on legacy ABI: fd: type int (r0) offset: type long long (r1-r2) len: type long long (r3-sp[0]) advice: type int (sp[4]) With EABI this becomes: fd: type int (r0) offset: type long long (r2-r3) len: type long long (sp[0]-sp[4]) advice: type int (sp[8]) Not only do we have ABI differences here, but the EABI version requires one additional word on the syscall stack. To avoid the ABI mismatch and the extra stack space required with EABI this syscall is now defined with a different argument ordering on ARM as follows: long sys_arm_fadvise64_64(int fd, int advice, loff_t offset, loff_t len) This gives us the following ABI independent argument distribution: fd: type int (r0) advice: type int (r1) offset: type long long (r2-r3) len: type long long (sp[0]-sp[4]) Now, since the syscall entry code takes care of 5 registers only by default including the store of r4 to the stack, we need a wrapper to store r5 to the stack as well. Because that wrapper was missing and was always required this means that sys_fadvise64_64 never worked on ARM and therefore we can safely reuse its syscall number for our new sys_arm_fadvise64_64 interface. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-31[ARM] 2868/1: Include linux/cpumask.h in arch/arm/common/gic.cCatalin Marinas
Patch from Catalin Marinas Minor compilation error fix. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-31[ARM] 2867/2: unaligned ldrd/strd fixupsSteve Longerbeam
Patch from Steve Longerbeam Adds an implementation of unaligned LDRD and STRD fixups. Also fixes a bug where do_alignment() would misinterpret and fixup an unaligned LDRD/STRD as LDRH/STRH, causing memory corruption. This is the same as Patch #2867/1, but with minor whitespace and comments changes, plus a check for arch-level >= v5TE before printing ai_dword count in proc_alignment_read(). Signed-off-by: Steve Longerbeam <stevel@mwwireless.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-31[ARM] 2857/2: Dynamic tick - fix OOPS if configured and not providedBen Dooks
Patch from Ben Dooks timer_dyn_reprogram() fails with an OOPS if the configuration for CONFIG_NO_IDLE_HZ is enabled, and the system has no support for it. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-29[ARM] 2853/1: Make alloc_init_supersection() work with 36-bit mappingsDeepak Saxena
Patch from Deepak Saxena Working on adding support for 36-bit static mappings for ARMv6 and Intel's XSC3 core and noticed that alloc_init_supersection currently increments the phys addr by 1MB on each of the 16 iterations and then forces alignment to supersection size (16MB). This is really uneeded b/c we have already forced the phys address to be 16MB aligned in create_mapping(). Furthermore, this breaks 36-bit addressing b/c bits [23:20] of the PMD contain bits [35:32] of the physical address and the masking causes us to loose those bits thus ending up with an incorrect virt -> phys translation. The other option is to have an alloc_init_supersection36. Tested on Intel IXP2350 CPU with 36-bit static I/O mappings. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-29[ARM] 2856/1: S3C2440 - show DVS status at startupBen Dooks
Patch from Ben Dooks Show the state of DVS (Dynamic Voltage Scaling) when starting up on the S3C2440 Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-29[ARM] 2855/1: S3C2410 - add CLKSLOW definitions, and show in initBen Dooks
Patch from Ben Dooks Add the definitions for the S3C2410_CLKSLOW registers to the header files, and show the values when the system starts up Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-29[ARM] 2836/1: Cleanup IXP4xx GPIO codeDeepak Saxena
Patch from Deepak Saxena This patch implements the set_irq_type() hooks for configuring GPIO IRQ type and updates all the platforms to use it instead of the gpio_line_config() function which is now used to configure input vs. output on the pins. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-29[ARM] 2834/1: Remove IXP4xx board-specific map_io routinesDeepak Saxena
Patch from Deepak Saxena None of the board-specific map_io routines do anything, so kill them. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-29Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-arm.git Linus Torvalds
2005-08-29Merge HEAD from master.kernel.org:/home/rmk/linux-2.6-ucb.git Linus Torvalds
2005-08-29[PATCH] convert signal handling of NODEFER to act like other Unix boxes.Steven Rostedt
It has been reported that the way Linux handles NODEFER for signals is not consistent with the way other Unix boxes handle it. I've written a program to test the behavior of how this flag affects signals and had several reports from people who ran this on various Unix boxes, confirming that Linux seems to be unique on the way this is handled. The way NODEFER affects signals on other Unix boxes is as follows: 1) If NODEFER is set, other signals in sa_mask are still blocked. 2) If NODEFER is set and the signal is in sa_mask, then the signal is still blocked. (Note: this is the behavior of all tested but Linux _and_ NetBSD 2.0 *). The way NODEFER affects signals on Linux: 1) If NODEFER is set, other signals are _not_ blocked regardless of sa_mask (Even NetBSD doesn't do this). 2) If NODEFER is set and the signal is in sa_mask, then the signal being handled is not blocked. The patch converts signal handling in all current Linux architectures to the way most Unix boxes work. Unix boxes that were tested: DU4, AIX 5.2, Irix 6.5, NetBSD 2.0, SFU 3.5 on WinXP, AIX 5.3, Mac OSX, and of course Linux 2.6.13-rcX. * NetBSD was the only other Unix to behave like Linux on point #2. The main concern was brought up by point #1 which even NetBSD isn't like Linux. So with this patch, we leave NetBSD as the lonely one that behaves differently here with #2. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-28[ARM] drop i386-isms from arm KconfigPavel Machek
This kills i386-specific stuff from arm Kconfig. Please apply, Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-26[PATCH] arm: fix IXP4xx flash resource rangeDeepak Saxena
We are currently reserving one byte more than actually needed by the flash device and overlapping into the next I/O expansion bus window. This a) causes us to allocate an extra page of VM due to ARM ioremap() alignment code and b) could cause problems if another driver tries to request the next expansion bus window. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-23[PATCH] qualifiers in return types - easy casesAl Viro
a bunch of functions switched from volatile to __attribute__((noreturn)) and from const to __attribute_pure__ Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-23[PATCH] Kconfig fix (arm SMP)Al Viro
SMP is broken on arm; marked as such Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-18[ARM] Add support for ARM GICRussell King
Add support for the ARM Generic Interrupt Controller. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-18[MFD] Add SA11x0 MCP platform device supportRussell King
Add platform device data for the SA11x0 MCP device. This allows platforms to customise the configuration of the SA11x0 MCP device according to their needs. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-18[MFD] Add multimedia communication port core supportRussell King
Add support for the core of the multimedia communication port framework. This is a port used to communicate with devices with two DMA paths and a control path. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-17[ARM] 2850/1: Remove duplicate UART I/O mapping from s3c2410_iodescDimitry Andric
Patch from Dimitry Andric This patch removes the initial UART I/O mapping from s3c2410_iodesc, since the same mapping is already done in the function s3c24xx_init_io in the file arch/arm/mach-s3c2410/cpu.c, through the s3c_iodesc array. I'm not sure if duplicate mappings do any harm, but it's simply redundant. Also, in s3c2440.c the UART I/O mapping is NOT done. Additionally, I put a comma behind the last mapping, to ease copy/pasting stuff around, and make the style consistent with s3c2440.c and other files. Signed-off-by: Dimitry Andric <dimitry@andric.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-17[ARM] 2852/1: Correct the mistake in arch/arm/mm/Kconfig fileSean Lee
Patch from Sean Lee In the arch/arm/mm/Kconfig file, the CPU_DCACHE_WRITETHROUGH option is depend on the CPU_DISABLE_DCACHE, but the "Disable D-Cache" option is configured as CPU_DCACHE_DISABLE. The CPU_DISABLE_DCACHE should be CPU_DCACHE_DISABLE Signed-off-by: Sean Lee <beginner2arm@eyou.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-15[PATCH] ARM: 2851/1: Fix NWFPE extended precision exception handlingRichard Purdie
Patch from Richard Purdie The exception handling code fails to compile if the extended precision mode is enabled. This patch fixes those compile errors and also stops _quiet functions from incorrectly raising exceptions. Reported-by: Ralph Siemsen <ralphs@netwinder.org> Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-15[ARM] Remove extraneous whitespace introduced in previous ARMv6 patchRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-15[ARM] Add syscall stubs for inotify and ioprio system callsRobert Love
Signed-off-by: Robert Love <rml@novell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-10Merge master.kernel.org:/home/rmk/linux-2.6-arm-smpLinus Torvalds
2005-08-10[PATCH] ARM: 2849/1: S3C24XX - USB host update (2848/1)Ben Dooks
Patch from Ben Dooks Rename the s3c2410_report_oc() to s3c2410_usb_report_oc() as this is an usb specific function. Change port power on the usb-simtec implementation to only power up the output if both are set, as per the usb 1.1 specification Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-10[ARM] Control v6 'global' bit via Linux PTE entriesRussell King
Unfortunately, we can't use the "user" bit in the page tables to control whether a page table entry is "global" or "asid" specific, since the vector page is mapped as "user" accessible but is not process specific. Therefore, give direct control of the ARMv6 "nG" (not global) bit to the mm layers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-10[ARM] Use #defined constants for manipulating v6 hardware PTE bitsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-10[ARM SMP] Clear the exclusive monitor on ARMv6 CPUs on context switchRussell King
Ensure that the exclusive monitor is cleared on context switch with ARMv6 CPUs. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-10[ARM SMP] Only enable V6K instructions on V6 MP core CPUsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-04[PATCH] pci and yenta: pcibios_bus_to_resourceDominik Brodowski
In yenta_socket, we default to using the resource setting of the CardBus bridge. However, this is a PCI-bus-centric view of resources and thus needs to be converted to generic resources first. Therefore, add a call to pcibios_bus_to_resource() call in between. This function is a mere wrapper on x86 and friends, however on some others it already exists, is added in this patch (alpha, arm, ppc, ppc64) or still needs to be provided (parisc -- where is its pcibios_resource_to_bus() ?). Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-04[PATCH] ARM: 2844/1: Add maintainer for Jornada 720Michael Gernoth
Patch from Michael Gernoth As discussed on the handhelds.org Jornada mailinglist, I take over maintainership of the currently unmaintained Jornada 720-port in the mainline kernel. Signed-off-by: Michael Gernoth <michael@gernoth.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-04[PATCH] ARM: 2838/1: Fix arm oprofile backtrace warningRichard Purdie
Patch from Richard Purdie Fix a typo causing a warning in the arm oprofile backtrace code. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-04[PATCH] ARM: Fix ARM fault handler for get_user_pages() fixes.Russell King
The ARM fault handler is optimised to make the fast path, err, fast. The renumbering of the VM_FAULT_* codes broke this because numbers were used instead of the definitions. Fix this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-03[PATCH] ARM: 2835/1: Add UPF_SKIP_TEST to IXP4xx serial portsDeepak Saxena
Patch from Deepak Saxena This allows the serial driver autconf to work properly on all the IXP serial ports. W/o it we basically put the serial port in an unrecoverable state and lose console. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-03[PATCH] ARM: 2841/1: Fix VFP +/-0 case for doubles additionCatalin Marinas
Patch from Catalin Marinas The IEEE 754 standard specifies that the result of (x - x), where x is a valid number, should be -0 if the rounding mode is towards minus infinity or +0 otherwise. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-03[PATCH] ARM: 2839/1: Remove XScale cache and TLB locking codeDeepak Saxena
Patch from Deepak Saxena The XScale locking code is not something that has been validated on 2.6 and needs to be replaced with a more generic API to use with other ARMs that support locking features. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-03[PATCH] ARM: 2837/2: Re: ARM: Make NWFPE preempt safeRichard Purdie
Patch from Richard Purdie NWFPE used global variables which meant it wasn't safe for use with preemptive kernels. This patch removes them and communicates the information between functions in a preempt safe manner. Generation of some exceptions was broken and this has also been corrected. Tests with glibc's maths test suite show no change in the results before/after this patch. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-08-03[PATCH] ARM: 2832/1: BAST - limit clock-rate for IIC busBen Dooks
Patch from Ben Dooks The default clock rate does not specify a maximum, so the default of 400KHz is used. This rate is too fast for the PMU on the EB2410ITX, so we now specify platform data with a rate of around 100KHz. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-29[ARM SMP] Ensure secondary CPUs see their pen releaseRussell King
Since the secondary CPUs will not be operating in symetric mode while they are held in the pen, we need to ensure that the write to pen_release is visible to them, by flushing the cache. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-28[ARM SMP] Fix another ARMv6 bitop problemRussell King
We sometimes forgot to check whether the exclusive store succeeded. Ensure that we always check. Also ensure that we always use the out of line versions, since the inline versions are not SMP safe. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-28[ARM SMP] Ensure secondary CPUs have a clean TLBRussell King
Since ARMv6 CPUs will not flush the TLB on context switches, it is possible that we may end up with some global TLB entries remaining present, eventually upsetting userspace. Explicitly flush the entire TLB on secondary CPUs as they startup, after we have switched to the init_mm page tables. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-27[ARM SMP] Fix data corruption in test_* bitopsRussell King
If we found that the bit was already in the desired state, we would skip performing the operation, and write random data back. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-07-26Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds