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2005-12-22[SPARC]: Kill CHILD_MAX.David S. Miller
It's definition is wrong (-1 means "no limit" not 999), only the Sparc SunOS/Solaris compat code uses it, so let's just kill it off completely from limits.h and all referencing code. Noticed by Ulrich Drepper. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-22[SPARC]: introduce a SPARC Kconfig symbolAdrian Bunk
Introduce a Kconfig symbol SPARC that is defined on both the sparc and sparc64 architectures. This symbol makes some dependencies more readable. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-22powerpc: Fix i8259 cascade on pSeries with XICS interrupt controllerPaul Mackerras
It turns out that commit f9bd170a87948a9e077149b70fb192c563770fdf broke the cascade from XICS to i8259 on pSeries machines; specifically we ended up not ever doing the EOI on the XICS for the cascade. The result was that interrupts from the serial ports (and presumably any other devices using ISA interrupts) didn't get through. This fixes it and also simplifies the code, by doing the EOI on the XICS in the xics_get_irq routine after reading and acking the interrupt on the i8259. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-20[SPARC64]: Stop putting -finline-limit=XXX into CFLAGSDavid S. Miller
It was a stupid workaround for the "static inline" vs. "extern inline" issues of long ago, and it is what causes schedule() to be inlined like crazy into kernel/sched.c when -Os is specified. MIPS and S390 should probably do the same. Now CC_OPTIMIZE_FOR_SIZE can be safely used on sparc64 once more. Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-20[PATCH] Fix build with CONFIG_PCI_MMCONFIGAndi Kleen
Now needs to include the type 1 functions ("direct") too. Reported by Pavel Roskin <proski@gnu.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds
2005-12-20powerpc: update defconfigsPaul Mackerras
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-20[PATCH] powerpc: CPM2 interrupt handler failure after 100,000 interruptsEdson Seabra
The CPM2 interrupt handler does not return success to the IRQ subsystem, which causes it to kill the IRQ line after 100,000 interrupts. Signed-off-by: Edson Seabra <Edson.Seabra@cyclades.com> Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-20powerpc: correct register usage in 64-bit syscall exit pathPaul Mackerras
Since we don't restore the volatile registers in the syscall exit path, we need to make sure we don't leak any potentially interesting values from the kernel to userspace. This was already the case for all except r11. This makes it use r11 for an MSR value, so r11 will have an (uninteresting) MSR value in it on return to userspace. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-19Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2005-12-19[ARM] 3210/1: add missing memory barrier helper for NPTL supportNicolas Pitre
Patch from Nicolas Pitre Strictly speaking, the NPTL kernel helpers are required for pre ARMv6 only. They are available on ARMv6+ as well for obvious compatibility reasons. However there are cases where extra memory barriers are needed when using an SMP ARMv6 machine but not on pre-ARMv6. This patch adds a memory barrier kernel helper that glibc can use as needed for pre-ARMv6 binaries to be forward compatible with an SMP kernel on ARMv6, as well as the necessary dmb instructions to the cmpxchg helper. Signed-off-by: Nicolas Pitre <nico@cam.org> Acked-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-18[PATCH] uml skas0: stop gcc's insanityJeff Dike
With Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> UML skas0 stub has been miscompiling for many people (incidentally not the authors), depending on the used GCC versions. I think (and testing on some GCC versions shows) this patch avoids the fundamental issue which is behind this, namely gcc using the stack when we have just replaced it, behind gcc's back. The remapping and storage of the return value is hidden in a blob of asm, hopefully giving gcc no room for creativity. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-18[PATCH] uml - fix some funkiness in KconfigPaolo 'Blaisorblade' Giarrusso
So you may have seen the miniconfig stuff wander by, which means that my build script exits if there's a .config error, and we have this: fs/Kconfig:1749:warning: 'select' used by config symbol 'CIFS_UPCALL' refer to undefined symbol 'CONNECTOR' This makes it shut up. Signed-off-by: Rob Landley <rob@landley.net> [ Verified it makes sense. ] Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-18[PATCH] uml: fix dynamic linking on some 64-bit distrosRob Landley
With Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> The current UML build assumes that on x86-64 systems, /lib is a symlink to /lib64, but in some distributions (like PLD and CentOS) they are separate directories, so the 64 bit library loader isn't found. This patch inserts /lib64 at the start of the rpath on x86-64 UML builds. Signed-off-by: Rob Landley <rob@landley.net> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-18[PATCH] uml: arch/um/scripts/Makefile.rules - remove duplicated codePaolo 'Blaisorblade' Giarrusso
Duplicated code - the patch adding it was probably applied twice without enough care. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-17[ARM] Fix sys_sendto and sys_recvfrom 6-arg syscallsRussell King
Rather than providing more wrappers for 6-arg syscalls, arrange for them to be supported as standard. This just means that we always store the 6th argument on the stack, rather than in the wrappers. This means we eliminate the wrappers for: * sys_futex * sys_arm_fadvise64_64 * sys_mbind * sys_ipc Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-16Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2005-12-16[PATCH] ppc: ppc4xx_dma DMA_MODE_{READ,WRITE} fixAl Viro
DMA_MODE_{READ,WRITE} are declared in asm-powerpc/dma.h and their declarations there match the definitions. Old declarations in ppc4xx_dma.h are not right anymore (wrong type, to start with). Killed them, added include of asm/dma.h where needed. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-16[PATCH] PCI: Fix dumb bug in mmconfig fixAndi Kleen
Use correct address when referencing mmconfig aperture while checking for broken MCFG. This was a typo when porting the code from 64bit to 32bit. It caused oopses at boot on some ThinkPads. Should definitely go into 2.6.15. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-16[IA64] Add __read_mostly support for IA64Christoph Lameter
sparc64, i386 and x86_64 have support for a special data section dedicated to rarely updated data that is frequently read. The section was created to avoid false sharing of those rarely read data with frequently written kernel data. This patch creates such a data section for ia64 and will group rarely written data into this section. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-16[IA64-SGI] change default_sn2 to NR_CPUS==1024hawkes@sgi.com
Change the NR_CPUS default for ia64/sn up to 1024. Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: John Hesterberg <jh@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-16[IA64-SGI] Missed TLB flushJack Steiner
I see why the problem exists only on SN. SN uses a different hardware mechanism to purge TLB entries across nodes. It looks like there is a bug in the SN TLB flushing code. During context switch, kernel threads inherit the mm of the task that was previously running on the cpu. This confuses the code in sn2_global_tlb_purge(). The result is a missed TLB purge for the task that owns the "borrowed" mm. (I hit the problem running heavy stress where kswapd was purging code pages of a user task that woke kswapd. The user task took a SIGILL fault trying to execute code in the page that had been ripped out from underneath it). Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-16[IA64] uncached ref count leakJes Sorensen
Use raw_smp_processor_id() instead of get_cpu() as we don't need the extra features of get_cpu(). Signed-off-by: Jes Sorensen <jes@trained-monkey.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-16[IA64] disable preemption in udelay()John Hawkes
The udelay() inline for ia64 uses the ITC. If CONFIG_PREEMPT is enabled and the platform has unsynchronized ITCs and the calling task migrates to another CPU while doing the udelay loop, then the effective delay may be too short or very, very long. This patch disables preemption around 100 usec chunks of the overall desired udelay time. This minimizes preemption-holdoffs. udelay() is now too big to be inline, move it out of line and export it. Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-15[PATCH] arch/powerpc/kernel/syscalls.c __user annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] arch/alpha/kernel/machvec_impl.h: C99 struct initializerAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] ia64 sn __iomem annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] i386,amd64: ioremap.c __iomem annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] i386,amd64: mmconfig __iomem annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] arch/sparc/kernel/led.c __user annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] sun4c_memerr_reg __iomem annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] sparc: NULL noise removal (ebus.c)Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] sparc/kernel/time: __iomem annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15[PATCH] fix iomem annotations in sparc32 pcic codeAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-14Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2005-12-14[ARM] 3205/1: Handle new EABI relocations when loading kernel modules.Daniel Jacobowitz
Patch from Daniel Jacobowitz Handle new EABI relocations when loading kernel modules. This is necessary for CONFIG_AEABI kernels, and also for some broken (since fixed) old ABI toolchains. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-12-14[IA64] fix for SET_PERSONALITY when CONFIG_IA32_SUPPORT is not set.Robin Holt
Missed this when fixing the SET_PERSONALITY change. Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
2005-12-12[PATCH] x86_64: Bug correction in populate_memnodemap()Eric Dumazet
As reported by Keith Mannthey, there are problems in populate_memnodemap() The bug was that the compute_hash_shift() was returning 31, with incorrect initialization of memnodemap[] To correct the bug, we must use (1UL << shift) instead of (1 << shift) to avoid an integer overflow, and we must check that shift < 64 to avoid an infinite loop. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] x86_64: Fix collision between pmtimer and pit/hpetjohn stultz
On systems that do not support the HPET legacy functions (basically the IBM x460, but there could be others), in time_init() we accidentally fall into a PM timer conditional and set the vxtime_hz value to the PM timer's frequency. We then use this value with the HPET for timekeeping. This patch (which mimics the behavior in time_init_gtod) corrects the collision. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] x86_64: Fix 32bit thread coredumpsAndi Kleen
When a register set is passed in don't try to fix up the pointer. Noticed by Al Viro Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] i386/x86-64 Correct for broken MCFG tables on K8 systemsAndi Kleen
They report all busses as MMCONFIG capable, but it never works for the internal devices in the CPU's builtin northbridge. It just probes all func 0 devices on bus 0 (the internal northbridge is currently always on bus 0) and if they are not accessible using MCFG they are put into a special fallback bitmap. On systems where it isn't we assume the BIOS vendor supplied correct MCFG. Requires the earlier patch for mmconfig type1 fallback Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] i386/x86-64 Fall back to type 1 access when no entry foundAndi Kleen
When there is no entry for a bus in MCFG fall back to type1. This is especially important on K8 systems where always some devices can't be accessed using mmconfig (in particular the builtin northbridge doesn't support it for its own devices) Cc: <gregkh@suse.de> Cc: <jgarzik@pobox.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] i386/x86-64: Don't call change_page_attr with a spinlock heldAndi Kleen
It's illegal because it can sleep. Use a two step lookup scheme instead. First look up the vm_struct, then change the direct mapping, then finally unmap it. That's ok because nobody can change the particular virtual address range as long as the vm_struct is still in the global list. Also added some LinuxDoc documentation to iounmap. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] i386/x86-64 disable LAPIC completely for offline CPUShaohua Li
Disabling LAPIC timer isn't sufficient. In some situations, such as we enabled NMI watchdog, there is still unexpected interrupt (such as NMI) invoked in offline CPU. This also avoids offline CPU receives spurious interrupt and anything similar. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Andi Kleen <ak@suse.de> Acked-by: "Seth, Rohit" <rohit.seth@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] x86_64: Make sure hpet_address is 0 when any part of HPET ↵Andi Kleen
initialization fails Otherwise TSC->HPET fallback could see incorrect state and crash later. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
2005-12-12Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
2005-12-12Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2005-12-12[SPARC]: block/ needed in final image linkPaul Jackson
With this fix, sparc links vmlinuz again using crosstool. Without this fix, the final link fails missing several dozen dozen symbols, beginning with: kernel/built-in.o(.text+0x6fd0): In function `do_exit': : undefined reference to `exit_io_context' (exit_io_context is defined in block/ll_rw_blk.c). Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2005-12-12[SPARC]: atomic_clear_mask build fixPaul Jackson
This fixes one build error introduced in sparc with the patch of Oct 30, resent Nov 4 "[patch 3/5] atomic: atomic_inc_not_zero" I still can't get sparc to build, but at least it gets further after I remove this line. Apparently, this change was agreed to by Andrew and Nick on Nov 14, but everyone thought someone else was doing it. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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