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2006-02-07[PATCH] x86_64: Fix the node cpumask of a cpu going downRavikiran G Thirumalai
Currently, x86_64 and ia64 arches do not clear the corresponding bits in the node's cpumask when a cpu goes down or cpu bring up is cancelled. This is buggy since there are pieces of common code where the cpumask is checked in the cpu down code path to decide on things (like in the slab down path). PPC does the right thing, but x86_64 and ia64 don't (This was the reason Sonny hit upon a slab bug during cpu offline on ppc and could not reproduce on other arches). This patch fixes it for x86_64. I won't attempt ia64 as I cannot test it. Credit for spotting this should go to Alok. (akpm: this was applied, then reverted. But it's OK now because we now use for_each_cpu() in the right places). Signed-off-by: Alok N Kataria <alokk@calsoftinc.com> Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-07Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
2006-02-07[PATCH] Fix bad apic fix on i386Andi Kleen
Fix wrong '!' in bad apic fix I forgot to remove the ! when moving the code from x86-64 to i386 x86-64 tested !disable_apic, but of course for cpu_has_apic it shouldn't be negated. Credit goes to Jan Beulich for spotting it with eagle eyes. Cc: Jan Beulich <jbeulich@novell.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-bugfixLinus Torvalds
2006-02-07[MIPS] Clear ST0_RE on bootup.Ralf Baechle
The reset state is undefined and some firmware doesn't clear this bit possibly resulting in crashes on entry into userland. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] TX49x7: Fix reporting of the CPU name and PCI clockSergei Shtylylov
I've noticed that PCI clock was incorrectly reported as 66 MHz while being mere 33 MHz on RBTX4937 board -- this was due to the different encoding of the PCI divisor field in CCFG register between TX4927 and TX4937 chips... Also, RBTX49x7 was printed out as a CPU name (e.g., "CPU is RBTX4937"); and some debug printk() were duplicating each other... Signed-off-by: Konstantin Baydarov <kbaidarov@ru.mvista.com> Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Fix linker script to work for non-4K page size.Ralf Baechle
Very much to my surprise Fuxin Zhang reports this is all it takes to get the kernel to work for page sizes larger than 4kB. This also paves the way for support for the R6000 and R8000 which don't support 4kB page size. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Oprofile: Support for 34K UP kernels.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Fix dump_tlb.c warning and cleanup.Atsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Fix minor sparse warningsAtsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Sparse: Add some __user tags to signal functions.Atsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Shrink Qemu configuration to the bare minimum that is need and tested.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Support /proc/kcore for MIPSDaniel Jacobowitz
I'm pretty sure that the CKSEG0 bits are wrong, but I did need to cover that region - because the SB-1 kernel links at 0xffffffff80100000 or so, disassembly and printing static variables don't work unless the debugger can read that region. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] IP22: Fix serial console detectionRalf Baechle
From: Kaj-Michael Lang <milang@tal.org> In ip22-setup.c the checks for serial/graphics console logic does not check if ARCS console=g but the machine is using serial console, as it does if no keyboard is attached. This patch adds a check if ConsoleOut is serial. There might also be support for other graphics than Newport soon... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] ieee754[sd]p_neg workaroundAtsushi Nemoto
It looks glibc's pow() assumes an unary '-' operation for any number (including NaNs) always inverts its sign bit (though IEEE754 does not specify the sign bit for NaNs). This patch make the kernel math-emu emulates real MIPS neg.[ds] instruction. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Remove wrong __user tags.Atsushi Nemoto
This fixes sparse warnings 'dereference of noderef expression'. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Remove commented out code to add -mmad for Nevada.Ralf Baechle
Adding -mmad is not usable since over half a decade in gcc and when fixed the proper -march option values should enable the use of the mad, madu and mul instructions of the R5500, RM5200, RM7000 and RM9000 families. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Fix Cobalt PCI cache line sizesPeter Horton
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Sparse: Add _MIPS_SZINT and _MIPS_ISA to CHECKFLAGS to fix sparse ↵Atsushi Nemoto
warnings. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Sparse: Fix some compiler/sparse warnings in ptrace32.cAtsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Reformat to 80 columns.Ralf Baechle
Patch courtesy of Emily Postnews ;-) Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Sibyte: Make all setup functions __init.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Get rid of CONFIG_SB1_PASS_1_WORKAROUNDS #ifdef crapola.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Au1xx0: really set KSEG0 to uncached on rebootSergei Shtylylov
Fix a really old buglet in AMD Au1xx0 restart code: instead of modifying the whole CP0 Config.K0 field to 010b (meaning KSEG0 uncached) before flushing the caches and resetting a board, it only sets bit 1 of that reg. which is effectively a NOP since Config.K0 == 011b as the kernel sets it up (which is also its default value for Au1xx0). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] SB1: Add oprofile support.Mark Mason
Signed-off-by: Mark Mason <mason@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] BCM1480: Cleanup debug code left behind in the PCI driver.Mark Mason
Signed-off-by: Mark Mason <mason@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] BCM1125 PCI fixesMark Mason
Make BCM1125 targets to link again. Signed-off-by: Mark Mason <mason@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Nevada support for SGI O2.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Rename include/asm-mips/cobalt to include/asm-mips/mach-cobalt.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Rename _machine_power_off to pm_power_off so the kernel builds again.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Check function pointers are non-zero before calling.Ralf Baechle
Several boards don't initialize the pointers, so let's play safe. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Revert "mips: add pm_power_off"Ralf Baechle
pm_power_off duplicates the functionality of _machine_restart. This reverts b142159fa5ffbad73b6927fafa5440148030f3f1 commit.
2006-02-07[MIPS] RTLX compile fixes.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Get rid of unnecessary prototypes. Fixes and optimizations for HZ > 100.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-07[MIPS] Remove stray .set mips3 resulting in 64-bit instruction in 32-bit ↵Ralf Baechle
kernels. Only the NMI handler was affected so this is a low impact bug. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-06Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2006-02-06[IA64-SGI] Shub2 BTE address fixRuss Anderson
After converting the cpu physical address to shub2 physical addressing, the address was run through TO_PHYS() which clobbered a high node offset bit causing the BTE to fail on shub2 nodes with large memory. This fix corrects that problem. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck <tony.luck@intel.com>
2006-02-06Pull sn-recursive-flags-for-select-builds into release branchTony Luck
2006-02-05Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
2006-02-05[PATCH] i386: HIGHMEM64G must depend on X86_CMPXCHG64Adrian Bunk
Due to the usage of set_64bit in include/asm-i386/pgtable-3level.h, HIGHMEM64G must depend on X86_CMPXCHG64. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-05[PATCH] i386: print kernel version in register dumpsChuck Ebbert
Show first field of kernel version in register dumps like x86_64 does. Changes output from e.g.: (2.6.16-rc1) to: (2.6.16-rc1 #12) Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-05[PATCH] i386 cpu hotplug: don't access freed memoryChuck Ebbert
i386 CPU init code accesses freed init memory when booting a newly-started processor after CPU hotplug. The cpu_devs array is searched to find the vendor and it contains pointers to freed data. Fix that by: 1. Zeroing entries for freed vendor data after bootup. 2. Changing Transmeta, NSC and UMC to all __init[data]. 3. Printing a warning (once only) and setting this_cpu to a safe default when the vendor is not found. This does not change behavior for AMD systems. They were broken already but no error was reported. Signed-off-by: Chuck Ebbert <76306.1226@compuserve.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-05[PATCH] x86: fix stack trace facility levelHugh Dickins
dump_stack() on page allocation failure presently has an irritating habit of shouting just "====" at everyone: please stop it. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-05[PATCH] percpu data: only iterate over possible CPUsEric Dumazet
percpu_data blindly allocates bootmem memory to store NR_CPUS instances of cpudata, instead of allocating memory only for possible cpus. As a preparation for changing that, we need to convert various 0 -> NR_CPUS loops to use for_each_cpu(). (The above only applies to users of asm-generic/percpu.h. powerpc has gone it alone and is presently only allocating memory for present CPUs, so it's currently corrupting memory). Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: James Bottomley <James.Bottomley@steeleye.com> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Jens Axboe <axboe@suse.de> Cc: Anton Blanchard <anton@samba.org> Acked-by: William Irwin <wli@holomorphy.com> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-05Revert "[PATCH] x86_64: Fix the node cpumask of a cpu going down"Linus Torvalds
This reverts commit 10f4dc8b27ac42f930ac55adb8c521264dc997f8. Quoth Andi Kleen: "Kiran decided that it makes the problem worse than it was before. Fixing it fully requires more work which is too much for 2.6.16. So please revert that commit for now." Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-05[SPARC64]: Update defconfig.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-05[SPARC64]: Add .gitignore file for sparc64 boot images.David S. Miller
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-04[PATCH] x86_64: IOMMU printk cleanupJon Mason
This patch contains a printk reorder to remove the current problem of displaying "PCI-DMA: Disabling IOMMU." and then "PCI-DMA: using GART IOMMU" 20 lines later in dmesg. It also constains a printk reorder in swiotlb to state swiotlb enablement prior to describing the location of the bounce buffers, and a printk reorder to state gart enablement prior to describing the aperature. Also constains a whitespace cleanup in arch/x86_64/kernel/setup.c Tested (along with patch 2/2) on dual opteron with gart enabled, iommu=soft, and iommu=off. Signed-off-by: Jon Mason <jdmason@us.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-04[PATCH] x86_64: Let impossible CPUs point to reference per cpu dataAndi Kleen
Hack for 2.6.16. In 2.6.17 all code that uses NR_CPUs should be audited and changed to only touch possible CPUs. Don't mark the reference per cpu data init data (so it stays around after boot) and point all impossible CPUs to it. This way they reference some valid - although shared memory. Usually this is only initialization like INIT_LIST_HEADs and there won't be races because these CPUs never run. Still somewhat hackish. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-04[PATCH] i386/x86-64: Don't ack the APIC for bad interrupts when the APIC is ↵Andi Kleen
not enabled It's bad juju to touch the APIC when it hasn't been enabled. I also moved ack_bad_irq for x86-64 out of line following i386. Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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