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* [PATCH] ARM: Fix Xscale copy_page implementationRussell King2005-06-08
| | | | | | | | | | The ARM copypage changes in 2.6.12-rc4-git1 removed the preempt locking from the copypage functions which broke the XScale implementation. This patch fixes the locking on XScale and removes the now unneeded minicache code. Signed-off-by: Russell King <rmk@arm.linux.org.uk> Checked-by: Richard Purdie
* [PATCH] ARM: 2700/1: Disable IXP2000 IRQs at bootupDeepak Saxena2005-06-03
| | | | | | | | | | | | | Patch from Deepak Saxena The IXDP2800 bootloader does not disable IRQs before jumping into the kernel and this is causing the Grand Unified KGDB to crash the system when we do an early call to trap_init() and irq handlers have not yet been registered. This patch disables IRQs before we jump into the kernel. Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2691/1: PXA27x sleep fixes take 2Todd Poynor2005-06-03
| | | | | | | | | | | | | | | | | | | Patch from Todd Poynor PXA27x sleep fixes: * set additional sleep/wakeup registers for Mainstone boards. * move CKEN=0 to pxa25x-specific code; that value is harmful on pxa27x. * save/restore additional registers, including some found necessary for C5 processors and/or newer blob versions. * enable future support of additional sleep modes for PXA27x (eg, standby, deep sleep). * split off cpu-specific sleep processing between pxa27x and pxa25x into separate files (partly in preparation for additional sleep modes). Includes fixes from David Burrage. Signed-off-by: Todd Poynor Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2694/1: [s3c2410/dma] release irq properly to fix kernel oopsAlbrecht Dreß2005-06-03
| | | | | | | | | | | | | | Patch from Albrecht Dreß Problem: When a module requests a DMA channel via the function s3c2410_dma_request(), this function requests the appropriate irq under the name of the client module. When the client module is unloaded, it calls s3c2410_dma_free() which does not free the irq. Consequently, when e.g. running "cat /proc/interrupts", the irq owner points to freed memory, leading to a kernel oops. File: linux/arch/arm/mach-s3c2410/dma.c Fix: trivial, below Signed-off-by: Albrecht Dreß Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: Fix build errorRussell King2005-05-16
| | | | | | Mainline kernels don't have VECTORS_HIGH nor COPYPAGE_MINICACHE yet. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: 2678/1: S3C2440 - cpu fixes, hdiv divisors and nand dev nameBen Dooks2005-05-12
| | | | | | | | | | | | Patch from Ben Dooks Fix the setting of hdiv when set to divide-by-2. Thanks to Jeonghoon Yoon for pointing this out. Change name of the NAND device to "s3c2440-nand" as it is not similar enough to the "s3c2410-nand" device. Signed-off-by: Ben Dooks Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2677/1: S3C2440 - UPLL frequency doubledBen Dooks2005-05-12
| | | | | | | | | | | Patch from Ben Dooks S3C2440 UPLL is the same as the S3C2410 UPLL, it is only the MPLL which has an extra multiplication factor of 2 in the multiplier. Signed-off-by: Ben Dooks Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2680/1: refine TLS reg availability some more againNicolas Pitre2005-05-12
| | | | | | | | | Patch from Nicolas Pitre Not all ARMv6 processors implement the TLS register. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2663/2: I can't typeNicolas Pitre2005-05-10
| | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: Add V6 aliasing cache flushRussell King2005-05-10
| | | | | | | Add cache flushing support for aliased V6 caches to flush_dcache_page. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Use top_pmd for V6 copy/clear user_pageRussell King2005-05-10
| | | | | | Remove needless page table walking for v6 page operations. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Move copy/clear user_page locking into implementationRussell King2005-05-10
| | | | | | | | | Move the locking for copy_user_page() and clear_user_page() into the implementations which require locking. For simple memcpy/ memset based implementations, the locking is extra overhead which is not necessary, and prevents preemption occuring. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Add top_pmd, which points at the top-most page tableRussell King2005-05-10
| | | | Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Add inline functions to find the pmd from virtual addressRussell King2005-05-09
| | | | | | | Add pmd_off() and pmd_off_k() to obtain the pmd pointer for a virtual address, and use them throughout the mm initialisation. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: 2665/1: kill warnings in entry-armv.SNicolas Pitre2005-05-05
| | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2663/1: straightify TLS register emulation a bit moreNicolas Pitre2005-05-05
| | | | | | | | | Patch from Nicolas Pitre This better express things, and should cover RMK's weird SMP toys. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: select PCI, ISA and ISA_DMARussell King2005-05-05
| | | | | | | Rather than using a long "depends on..." and "default y" lines for these options, use select instead. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Fix kernel stack offset calculationsRussell King2005-05-05
| | | | | | | | | | | | Various places in the ARM kernel implicitly assumed that kernel stacks are always 8K due to hard coded constants. Replace these constants with definitions. Correct the allowable range of kernel stack pointer values within the allocation. Arrange for the entire kernel stack to be zeroed, not just the upper 4K if CONFIG_DEBUG_STACK_USAGE is set. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ISA DMA Kconfig fixes - part 1Al Viro2005-05-04
| | | | | | | | | | | | | | | | | | | | A bunch of drivers use ISA DMA helpers or their equivalents for platforms that have ISA with different DMA controller (a lot of ARM boxen). Currently there is no way to put such dependency in Kconfig - CONFIG_ISA is not it (e.g. it is not set on platforms that have no ISA slots, but have on-board devices that pretend to be ISA ones). New symbol added - ISA_DMA_API. Set when we have functional enable_dma()/set_dma_mode()/etc. set of helpers. Next patches in the series will add missing dependencies for drivers that need them. I'm very carefully staying the hell out of the recurring flamefest on what exactly CONFIG_ISA would mean in ideal world - added symbol has a well-defined meaning and for now I really want to treat it as completely independent from the mess around CONFIG_ISA. Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PCI: drivers/pci/pci.c: remove pci_dac_set_dma_maskAdrian Bunk2005-05-04
| | | | | | | pci_dac_set_dma_mask is currently completely unused. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] ARM: 2662/1: missing "default y" for CONFIG_HAS_TLS_REGNicolas Pitre2005-05-03
| | | | | | | Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2661/1: imxfb includeSascha Hauer2005-05-03
| | | | | | | | | | Patch from Sascha Hauer This patch adds the missing include files for the i.MX framebuffer driver. Signed-off-by: Sascha Hauer Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: Clean up commenting/spacing for IntegratorRussell King2005-05-03
| | | | Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: decompressor: use platform debug macrosRussell King2005-05-03
| | | | | | | Rather than duplicate the assembly for debug macros in the decompressor head.S, use asm/arch/debug-macros.S instead. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] convert that currently tests _NSIG directly to use valid_signal()Jesper Juhl2005-05-01
| | | | | | | | | Convert most of the current code that uses _NSIG directly to instead use valid_signal(). This avoids gcc -W warnings and off-by-one errors. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] consolidate sys_shmatStephen Rothwell2005-05-01
| | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ARM: IntegratorCP: Fix CLCD MUX selection valuesRussell King2005-04-30
| | | | | | | The documentation on these values seems to be rather wrong. These values have been determined by mere trial and error. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: PXA I2C: add platform deviceRussell King2005-04-30
| | | | | | Add the PXA I2C platform device. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: RTC: allow driver methods to return errorRussell King2005-04-30
| | | | | | | Allow RTC drivers to return error codes from their read_time or read_alarm methods. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: 2660/2: fix ixdp2800 boot and pci initLennert Buytenhek2005-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek The IXDP2800 is an evalution platform for the IXP2800 processor that has two IXP2800s connected to the same PCI bus. This is problematic as both CPUs will try to configure the PCI bus as they boot linux. Contrary to on the other IXP2000 platforms, the boot loader on the IXDP2800 doesn't configure the PCI bus properly, so we do want the linux instance on one of the CPUs to do that. Making one of the CPUs ignore the PCI bus (and thus act like a pure PCI slave device) is not an option because there is a 82559 NIC on the PCI bus for each of the CPUs. The chosen solution is to have the master CPU configure the PCI bus while the slave is kept in a quiescent state, and then to have the slave CPU scan the PCI bus (without assigning resources) while the master is kept in a quiescent state. After this ritual, the master deletes the slave NIC from its PCI device list, the slave deletes the master NIC from its device list, and (almost) all is well. There's still one little problem: each of the CPUs has a 1G SDRAM BAR, but the IXP2000 only has 512M of outbound PCI memory window. We solve this by hand-assigning the master and slave SDRAM BARs to a location outside each of the IXP's outbound PCI windows, and by having the rest of the BARs autoconfigured in the outbound PCI windows, in the range [e0000000..ffffffff], so that there is a 1:1 pci:phys mapping between them. Even with this patch, a number of issues still remain -- just imagine what happens if one of the CPUs is rebooted, by watchdog or by hand, but the other one isn't. But those issues are not easily fixable given the strange PCI layout of this board and the behavior of the boot loader shipped with the platform. Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2656/1: Access permission bits are wrong for kernel XIP ↵George G. Davis2005-04-29
| | | | | | | | | | | | sections on ARMv6 Patch from George G. Davis This patch is required for kernel XIP support on ARMv6 machines. It ensures that the access permission bits for kernel XIP section descriptors are APX=1 and AP[1:0]=01, which is Kernel read-only/User no access permissions. Prior to this change, kernel XIP section descriptor access permissions were set to Kernel no access/User no access on ARMv6 machines and the kernel would therefore hang upon entry to userspace when set_fs(USER_DS) was executed. Signed-off-by: Steve Longerbeam Signed-off-by: George G. Davis Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2651/3: kernel helpers for NPTL supportNicolas Pitre2005-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Nicolas Pitre This patch entirely reworks the kernel assistance for NPTL on ARM. In particular this provides an efficient way to retrieve the TLS value and perform atomic operations without any instruction emulation nor special system call. This even allows for pre ARMv6 binaries to be forward compatible with SMP systems without any penalty. The problematic and performance critical operations are performed through segment of kernel provided user code reachable from user space at a fixed address in kernel memory. Those fixed entry points are within the vector page so we basically get it for free as no extra memory page is required and nothing else may be mapped at that location anyway. This is different from (but doesn't preclude) a full blown VDSO implementation, however a VDSO would prevent some assembly tricks with constants that allows for efficient branching to those code segments. And since those code segments only use a few cycles before returning to user code, the overhead of a VDSO far call would add a significant overhead to such minimalistic operations. The ARM_NR_set_tls syscall also changed number. This is done for two reasons: 1) this patch changes the way the TLS value was previously meant to be retrieved, therefore we ensure whatever library using the old way gets fixed (they only exist in private tree at the moment since the NPTL work is still progressing). 2) the previous number was allocated in a range causing an undefined instruction trap on kernels not supporting that syscall and it was determined that allocating it in a range returning -ENOSYS would be much nicer for libraries trying to determine if the feature is present or not. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2655/1: ARM1136 SWP instruction abort handler fixGeorge G. Davis2005-04-29
| | | | | | | | | Patch from George G. Davis As noted in http://www.arm.com/linux/patch-2.6.9-arm1.gz, the "Faulty SWP instruction on 1136 doesn't set bit 11 in DFSR." So the v6_early_abort handler does not report the correct rd/wr direction for the SWP instruction which may result in SEGVS or hangs. In order to work around this problem, this patch merely updates the fix contained in the ARM Ltd. patch to use the macroised abort handler fixups. Signed-off-by: George G. Davis Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2659/1: do not assign PCI I/O address zero on IXP2000Lennert Buytenhek2005-04-29
| | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Assigning the address zero to a PCI device BAR causes some part of the PCI subsystem to believe that resource allocation for that BAR failed due to resource conflicts, which will make attempts to enable the device fail. Work around this by assigning I/O addresses starting from 00010000. While we're at it, make the PCI I/O resource end at 0001ffff, since we only have 64k of outbound I/O window on the IXP2000, and we don't do bank switching. Signed-off-by: Lennert Buytenhek Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2658/1: start ixp2000 pci memory resource at 0xe0000000Lennert Buytenhek2005-04-29
| | | | | | | | | | | | | | | | Patch from Lennert Buytenhek On the IXDP2800, the bootloader does an awful job of configuring the PCI bus, so we make linux reconfigure everything. Having a 1:1 pci:phys address mapping generally simplifies everything, so try to allocate PCI addresses from the [e0000000..ffffffff] range, which is the physical address range of the outbound PCI window on the IXP2000. This does not affect any of the other IXP2000 platforms since they all use their bootloader's PCI resource assignment. Signed-off-by: Lennert Buytenhek Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2657/1: export ixp2000_pci_config_addrLennert Buytenhek2005-04-29
| | | | | | | | | | | Patch from Lennert Buytenhek Export ixp2000_pci_config_addr, to be used by the IXDP2800 platform setup code to coordinate booting the master and slave NPU. Signed-off-by: Lennert Buytenhek Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: make entry*.S includes more logicalRussell King2005-04-26
| | | | | | | Move common includes to entry-header, and file specific includes to the relevant file. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Remove single-use user save/restore macrosRussell King2005-04-26
| | | | | | | Assembly macros are pointless if they're only used once. Move them inline. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: remove PT_TRACESYSRussell King2005-04-26
| | | | | | PT_TRACESYS is unused, remove it. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Remove SVC_MODE definitionRussell King2005-04-26
| | | | | | | SVC_MODE reflects the MODE_SVC definition in asm/ptrace.h. Use the asm/ptrace.h definition instead, and remove SVC_MODE. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Use __NR_SYSCALL_BASE and __ARM_NR_BASE in asm codeRussell King2005-04-26
| | | | | | | Don't define our own local constants, but use those already defined in asm/unistd.h instead. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: pt_regs offsetsRussell King2005-04-26
| | | | | | | Generate pt_regs S_xx offsets from the structure itself instead of #defining them. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: Remove argument for disable_irq/enable_irqRussell King2005-04-26
| | | | | | | Since we do not require a register for these operations, we can remove this unnecessary argument. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: remove some entry initialisation asm codeRussell King2005-04-26
| | | | | | Convert the trivial vector entry initialisation code to C code. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: 2650/1: PXA27x sleep - workaround Errata 39 & 50 (Patch 2667)Jeff Lackey2005-04-25
| | | | | | | | | | Patch from Jeff Lackey This patch updates arch/arm/mach-pxa/sleep.S to support the PXA270 CPU. It works around Errata 39 & 50 from the Intel(R) PXA27x Processor Family Specification Update. Signed-off-by: Jeff Lackey Signed-off-by: Russell King
* [PATCH] freepgt: arm FIRST_USER_ADDRESS PAGE_SIZEHugh Dickins2005-04-19
| | | | | | | | | | ARM define FIRST_USER_ADDRESS as PAGE_SIZE (beyond the machine vectors when they are mapped low), and use that definition in place of locally defined MIN_MAP_ADDR. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ARM: Add missing new file for bitops patchRussell King2005-04-18
| | | | Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: bitopsRussell King2005-04-17
| | | | | | | | Convert ARM bitop assembly to a macro. All bitops follow the same format, so it's silly duplicating the code when only one or two instructions are different. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: showregsRussell King2005-04-17
| | | | | | | | Fix show_regs() to provide a backtrace. Provide a new __show_regs() function which implements the common subset of show_regs() and die(). Add prototypes to asm-arm/system.h Signed-off-by: Russell King <rmk@arm.linux.org.uk>
* [PATCH] ARM: h3600_irda_set_speed argumentsRussell King2005-04-17
| | | | | | | h3600_irda_set_speed() had the wrong type for the "speed" argument. Fix this. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
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