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2005-06-23[PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.shIan Campbell1-2/+2
The attached patch causes the various arch specific install.sh scripts to look for ${CROSS_COMPILE}installkernel rather than just installkernel (in both /sbin/ and ~/bin/ where the script already did this). This allows you to have e.g. arm-linux-installkernel as a handy way to install on your cross target. It also prevents the script picking up on the host /sbin/installkernel which causes the script to fall through and do the install itself (which is what I actually use myself, with $INSTALL_PATH set). I don't believe it causes back-compatibility problems since calling the host installkernel was never likely to work or be what you wanted when cross compiling anyway. If $CROSS_COMPILE isn't set then nothing changes. I only use ARM and i386 myself but I figured it couldn't hurt to do the whole lot. I've cc'd those who I hope are the arch maintainers for files that I've touched. Signed-off-by: Ian Campbell <icampbell@arcom.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23[PATCH] make each arch use mm/KconfigDave Hansen1-1/+3
For all architectures, this just means that you'll see a "Memory Model" choice in your architecture menu. For those that implement DISCONTIGMEM, you may eventually want to make your ARCH_DISCONTIGMEM_ENABLE a "def_bool y" and make your users select DISCONTIGMEM right out of the new choice menu. The only disadvantage might be if you have some specific things that you need in your help option to explain something about DISCONTIGMEM. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23[PATCH] ARM: Remove explicit page-alignments in memory initRussell King1-13/+6
Since meminfo.bank[] array contains page-aligned start/size, we no longer need to explicitly round up/down the addresses when converting to PFNs. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-23[PATCH] ARM: Ensure memory information is page alignedRussell King1-9/+16
Ensure that meminfo.bank[] array contains page-aligned start/size information. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-23[PATCH] ARM: Use list_for_each_entry() for dmabounceRussell King1-13/+5
Convert dmabounce.c to use list_for_each_entry() instead of list_for_each() + list_entry(). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-22[PATCH] ARM: Move signal return code into vector pageRussell King3-10/+40
Move the signal return code into the vector page instead of placing it on the user mode stack, which will allow us to avoid flushing the instruction cache on signals, as well as eventually allowing non-exec stack. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-22[PATCH] ARM: Allow clps7500 to build without parsing "acorn" tagRussell King1-0/+2
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-22[PATCH] ARM: Allow riscpc to parse "acorn" boot info tagRussell King1-6/+1
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-22[PATCH] ARM: Fix sa1111.c build error caused by klist changesRussell King1-6/+7
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-22[PATCH] Avoiding mmap fragmentationWolfgang Wander1-1/+9
Ingo recently introduced a great speedup for allocating new mmaps using the free_area_cache pointer which boosts the specweb SSL benchmark by 4-5% and causes huge performance increases in thread creation. The downside of this patch is that it does lead to fragmentation in the mmap-ed areas (visible via /proc/self/maps), such that some applications that work fine under 2.4 kernels quickly run out of memory on any 2.6 kernel. The problem is twofold: 1) the free_area_cache is used to continue a search for memory where the last search ended. Before the change new areas were always searched from the base address on. So now new small areas are cluttering holes of all sizes throughout the whole mmap-able region whereas before small holes tended to close holes near the base leaving holes far from the base large and available for larger requests. 2) the free_area_cache also is set to the location of the last munmap-ed area so in scenarios where we allocate e.g. five regions of 1K each, then free regions 4 2 3 in this order the next request for 1K will be placed in the position of the old region 3, whereas before we appended it to the still active region 1, placing it at the location of the old region 2. Before we had 1 free region of 2K, now we only get two free regions of 1K -> fragmentation. The patch addresses thes issues by introducing yet another cache descriptor cached_hole_size that contains the largest known hole size below the current free_area_cache. If a new request comes in the size is compared against the cached_hole_size and if the request can be filled with a hole below free_area_cache the search is started from the base instead. The results look promising: Whereas 2.6.12-rc4 fragments quickly and my (earlier posted) leakme.c test program terminates after 50000+ iterations with 96 distinct and fragmented maps in /proc/self/maps it performs nicely (as expected) with thread creation, Ingo's test_str02 with 20000 threads requires 0.7s system time. Taking out Ingo's patch (un-patch available per request) by basically deleting all mentions of free_area_cache from the kernel and starting the search for new memory always at the respective bases we observe: leakme terminates successfully with 11 distinctive hardly fragmented areas in /proc/self/maps but thread creating is gringdingly slow: 30+s(!) system time for Ingo's test_str02 with 20000 threads. Now - drumroll ;-) the appended patch works fine with leakme: it ends with only 7 distinct areas in /proc/self/maps and also thread creation seems sufficiently fast with 0.71s for 20000 threads. Signed-off-by: Wolfgang Wander <wwc@rentec.com> Credit-to: "Richard Purdie" <rpurdie@rpsys.net> Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Acked-by: Ingo Molnar <mingo@elte.hu> (partly) Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2-7/+7
2005-06-21[PATCH] Driver Core: arch: update device attribute callbacksYani Ioannou2-7/+7
Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-20[PATCH] ARM: 2719/1: enable module support in ixp2000 defconfigs by defaultLennert Buytenhek5-5/+35
Patch from Lennert Buytenhek The ixp2000 defconfigs are among the few that do not enable module support by default. I keep enabling module support by hand for every new kernel version, so let's just make this change upstream. Signed-off-by: Lennert Buytenhek Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: 2716/1: SharpSL Param: Fix typoRichard Purdie1-1/+1
Patch from Richard Purdie Fix typo in sharpsl_param.c so it works correctly on collie. Signed-off-by: Richard Purdie Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: 2701/1: free up ixp2000 timer 4 for the watchdogLennert Buytenhek1-8/+26
Patch from Lennert Buytenhek The IXP2000 has four timers, but if we're on an A-step IXP2800, timer 2 and 3 don't work. We need two timers for timekeeping (one for the timer interrupt and one for tracking missed jiffies), so on early IXP2800s we have no other choice but to use timer 1 and 4 for that, but on all other IXP2000s we'd rather leave timer 4 free since that's the only timer we can use for the watchdog. So, on buggy IXP2000s (i.e. the A-step IXP2800) we use timer 4 for tracking missed jiffies, and on all all non-buggy IXP2000s (i.e. everything but the A-step IXP2800) we use timer 2. On a pre-production IXP2800, this patch should print these messages on boot: Enabling IXP2800 erratum #25 workaround Unable to use IXP2000 watchdog due to IXP2800 erratum #25 On any non-buggy IXP2800 (as well as on IXP2400s) you shouldn't see anything at all, and the watchdog should be usable again. Signed-off-by: Lennert Buytenhek Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: 2693/1: Add PCI support for Versatile/PBCatalin Marinas4-6/+371
Patch from Catalin Marinas This patch adds PCI support for the Versatile PB926 platform. Signed-off-by: Colin King Signed-off-by: Catalin Marinas Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: 2686/2: AAEC-2000 Core supportBellido Nicolas8-1/+250
Patch from Bellido Nicolas Core support for AAEC-2000 based platforms. This is an updated version of the previous patch, and takes into account Russell's comments. AAED-2000 default configuration will follow as soon as some problems with the bootloader are sorted out... Signed-off-by: Nicolas Bellido Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Add iomap support for ARMRussell King2-4/+47
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Remove nmi_tick() from Integrator.Russell King1-1/+0
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Add missed include for dmabounce.cRussell King1-0/+2
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Lindent GCC helper functionsRussell King8-313/+274
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Remove gcc type-isms from GCC helper functionsRussell King8-95/+90
Convert ugly GCC types to Linux types: UQImode -> u8 SImode -> s32 USImode -> u32 DImode -> s64 UDImode -> u64 word_type -> int Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Remove obsolete arch/arm/kernel/arch.cRussell King2-47/+1
This is not used anymore - RiscPC now contains the necessary supporting code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Ensure DMA-bounced buffers are properly written to RAMRussell King1-2/+14
When DMA bounce buffers were unmapped and the data was memcpy'd to the original buffer, we were not ensuring that the data was written to RAM. This means that there was the potential for page cache pages to have different cache states depending whether they've been bounced or not. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Add common CACHE_COLOUR macroRussell King1-4/+2
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20[PATCH] ARM: Fix delayed dcache flush for ARMv6 non-aliasing cachesRussell King2-46/+29
flush_dcache_page() did nothing for these caches, but since they suffer from I/D cache coherency issues, we need to ensure that data is written back to RAM. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-19[PATCH] ARM SMP: Messages about CPUs should be prefixed by CPU%uRussell King1-1/+2
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-19Merge with ../linux-2.6-smpRussell King7-2/+403
2005-06-19[PATCH] ARM SMP: Fix PXA/SA11x0 suspend resume crashRussell King3-1/+5
We need to re-initialise the stack pointers for undefined, IRQ and abort mode handlers whenever we resume. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-19[PATCH] ARM SMP: Add missed files from Integrator/CP platformRussell King2-0/+229
Add missed new files from basic SMP support for the Integrator/CP platform. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-18[PATCH] ARM SMP: Add basic support Integrator/CP platformRussell King3-2/+23
Add basic SMP support for the Integrator/CP platform. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-18[PATCH] ARM SMP: Add support for startup of secondary processorsRussell King2-0/+151
Create a temporary page table to startup secondary processors. This page table must have a 1:1 virtual/physical mapping for the kernel in addition to the standard mappings to ensure that the secondary CPU can enable its MMU safely. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-18Merge with ../linux-2.6-smpRussell King3-123/+190
2005-06-17[PATCH] ARM: 2715/1: restore CPLD interrupts upon resume for Lubbock and ↵Nicolas Pitre2-1/+60
Mainstone Patch from Nicolas Pitre Without this some devices fail to work again after a suspend event. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-16[PATCH] ARM: 2713/1: Fix the GPIO base for Integrator/CPCatalin Marinas1-1/+0
Patch from Catalin Marinas The GPIO base for Integrator/CP is different from the Integrator/AP. This patch sets the correct value for INTEGRATOR_GPIO_BASE. Signed-off-by: Catalin Marinas Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-16[PATCH] ARM: 2712/1: Fix the RGB order for the Versatile CLCDCatalin Marinas1-1/+1
Patch from Catalin Marinas The current red and blue colours on the Versatile CLCD are reversed when the 5:6:5 mode is used. The patch sets the proper bit in the SYS_CLCD register value. Signed-off-by: Catalin Marinas Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-14[PATCH] ARM: 2711/1: fix compilation on PXA targets with CONFIG_PM=nNicolas Pitre2-0/+8
Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-13[PATCH] ARM: 2709/1: Systems with PCMCIA should also see IDE options (for ↵David Brownell1-1/+3
CompactFlash memories) Patch from David Brownell The ARM generic Kconfig filters out IDE options ... except for an error prone ARMload of special cases. This adds one general case to the systems that will offer IDE options: kernels with PCMCIA support, which probably want to use IDE to access CompactFlash cards. This might allow many (most?) of the other cases to disappear, for systems that only see IDE hardware through CF cards. Right now this one patch is used to gate access to CF cards, including MicroDrives, for both omap_cf and at91_cf drivers. Signed-off-by: David Brownell Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-10[PATCH] ARM: 2708/1: Fix hackkit CPU Frequency build faliureVincent Sanders2-11/+13
Patch from Vincent Sanders This fixes the "multiple definitions of cpufreq_get" build faliure on the hackkit SA1100 platform. Signed-off-by: Vincent Sanders Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-10[PATCH] ARM: 2707/2: Fix badge4 CPU Frequency build faliureVincent Sanders2-12/+19
Patch from Vincent Sanders This fixes the "multiple definitions of cpufreq_get" build faliure on the Badge4 SA1100 platform. Signed-off-by: Vincent Sanders Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-09[PATCH] ARM: 2706/1: Fix compile on SA-based iPAQs and remove stale CREDITS infoDave Neuer3-11/+17
Patch from Dave Neuer This fixes the "multiple definitions of cpufreq_get" errors on StrongARM-based iPAQs. Signed-off-by: Dave Neuer Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-09[PATCH] ARM: Remove zero-byte sized fileRussell King1-0/+0
Remove the remaining zero byte file left over from the Xscale fixes. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
2005-06-08[PATCH] ARM: 2664/2: add support for atomic ops on pre-ARMv6 SMP systemsNicolas Pitre3-5/+68
Patch from Nicolas Pitre Not that there might be many of them on the planet, but at least RMK apparently has one. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-08[PATCH] ARM: 2705/1: fix writesw for misaligned source pointerNicolas Pitre1-3/+3
Patch from Nicolas Pitre Signed-off-by: Nicolas Pitre Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-08[PATCH] ARM: Fix Xscale copy_page implementationRussell King5-195/+131
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
2005-06-04[PATCH] ARM: 2700/1: Disable IXP2000 IRQs at bootupDeepak Saxena1-0/+7
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>
2005-06-03[PATCH] ARM: 2691/1: PXA27x sleep fixes take 2Todd Poynor4-14/+88
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>
2005-06-03[PATCH] ARM: 2694/1: [s3c2410/dma] release irq properly to fix kernel oopsAlbrecht Dreß1-0/+4
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>
2005-06-01[PATCH] ARM SMP: Fix vector entryRussell King2-85/+139
The current vector entry system does not allow for SMP. In order to work around this, we need to eliminate our reliance on the fixed save areas, which breaks the way we enable alignment traps. This patch changes the way we handle the save areas such that we can have one per CPU. Signed-off-by: Russell King <rmk@arm.linux.org.uk>
2005-05-31[PATCH] ARM SMP: convert alignment enableRussell King2-5/+6
The current vector entry system does not allow for SMP. In order to work around this, we need to eliminate our reliance on the fixed save areas, which breaks the way we enable alignment traps. This patch makes the alignment trap enable code independent of the way we handle the save areas. Signed-off-by: Russell King <rmk@arm.linux.org.uk>