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* [PATCH] x86: fix broken SMP boot sequenceJames Bottomley2006-02-245-19/+35
| | | | | | | | | | | | | | | | Recent GDT changes broke the SMP boot sequence if the booting CPU is numbered anything other than zero. There's also a subtle source of error in that the boot time CPU now uses cpu_gdt_table (which is actually the GDT for booting CPUs in head.S). This patch fixes both problems by making GDT descriptors themselves allocated from a per_cpu area and switching to them in cpu_init(), which now means that cpu_gdt_table is exclusively used for booting CPUs again. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Cc: Zachary Amsden <zach@vmware.com> Cc: Matt Tolentino <metolent@snoqualmie.dp.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] voyager: fix the cpu_possible_map to make voyager boot againJames Bottomley2006-02-241-0/+1
| | | | | | | | | | | | | Right at the moment (thanks to a patch from Andrew), cpu_possible_map on voyager is CPU_MASK_NONE, which means the machine always thinks it has no CPUs. Fix that by doing an early initialisation of the cpu_possible_map from the cpu_phys_present_map. (akpm: we aim to please) Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] voyager: fix boot panic by adding topology exportJames Bottomley2006-02-241-0/+15
| | | | | | | | | It looks like I can't get away without exporting topology functions from voyager any longer, so add them to the voyager subarchitecture. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes causes NX protection fault on i686 SMPPrasanna S Panchamukhi2006-02-241-2/+14
| | | | | | | | | | | | | Fix a problem seen on i686 machine with NX support where the instruction could not be single stepped because of NX bit set on the memory pages allocated by kprobes module. This patch provides allocation of instruction solt so that the processor can execute the instruction from that location similar to x86_64 architecture. Thanks to Bibo and Masami for testing this patch. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: tidying COW codePaolo 'Blaisorblade' Giarrusso2006-02-244-5/+6
| | | | | | | | | | | Improve (especially for coherence) some prototypes, and return code of init_cow_file in error case - for a short write return -EINVAL, otherwise return the error we got! Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: better error reporting for read_outputPaolo 'Blaisorblade' Giarrusso2006-02-241-12/+22
| | | | | | | | | | | Do precise error handling: print precise error messages, distinguishing short reads and read errors. This functions fails frequently enough for me so I bothered doing this fix. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: os_connect_socket error path fixupPaolo 'Blaisorblade' Giarrusso2006-02-241-5/+14
| | | | | | | | | | Fix an fd leak and a return of -1 instead of -errno in the error path - this showed up in intensive testing of HPPFS, the os_connect_socket user. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: fix ((unused)) attributePaolo 'Blaisorblade' Giarrusso2006-02-241-1/+1
| | | | | | | | | | Use __attribute_used__ instead of __attribute__ ((unused)). This will help with GCC > 3.2. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: fix usage of kernel_errno in place of errnoPaolo 'Blaisorblade' Giarrusso2006-02-243-6/+22
| | | | | | | | | | | | To avoid conflicts, in kernel files errno is expanded to kernel_errno, to distinguish it from glibc errno. In this case, the code wants to use the libc errno but the kernel one is used; in the other usage, we return errno in place of -errno in case of an error. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: correct error messages in COW driverPaolo 'Blaisorblade' Giarrusso2006-02-242-10/+13
| | | | | | | | | | | Improve some error messages in the COW driver, and say V3, not V2, when talking about V3 format. Also resync with our userspace code utility a bit more. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Acked-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] m32r: fix and update for gcc-4.0Hirokazu Takata2006-02-242-16/+12Star
| | | | | | | | | | | | | | | | | | | | Fix and update for gcc-4.0. - arch/m32r/kernel/signal.c: Change type of the 8th parameter of sys_rt_sigsuspend() from 'struct pt_regs' to 'struct pt_regs *'. This functions make use of the 'regs' parameter to return status value, but gcc-4.0 optimizes and removes it as a dead code. Functions, sys_sigaltstack() and sys_rt_sigreturn(), have also modified. - arch/m32r/lib/usercopy.c, include/asm-m32r/uaccess.h: Add early-clobber constraints('&') to output values of asm statements; these constraints seems to be required for gcc-4.0 register assignment. Signed-off-by: Hayato Fujiwara <fujiwara@linux-m32r.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] m32r: enable asm code optimizationHirokazu Takata2006-02-241-3/+3
| | | | | | | | | | | | | Add -O2 option to AFLAGS to enable asm code optimization for m32r. On m32r gas, "-m32r2 -O" option enables assembler's parallel code generation optimization for M32R2 ISA as a default. So, "-no-parallel" option is required explicitly for a cpu core with single instuction issuing, for example, VDEC2. Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] powerpc: Don't re-assign PCI resources on MapleSegher Boessenkool2006-02-241-2/+2
| | | | | | | | | Maple firmware does not need PCI resource allocation, and in fact, it can cause problems in some strange cases. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fix some MPIC + HT APIC bugletsSegher Boessenkool2006-02-241-4/+5
| | | | | | | | | | | Do disable, not enable, the HT APIC IRQ in the function that is supposed to. Enable the MPIC IRQ before enabling the downstream APIC IRQ, avoids potentially losing an interrupt. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Update {g5,pseries,ppc64}_defconfigOlof Johansson2006-02-243-285/+189Star
| | | | | | | | | | | | Update defconfigs for g5, pseries and generic ppc64. Default choices for everything, with the following exceptions: * Enable WINDFARM_PM112 on g5 and ppc64. * Increase CONFIG_NR_CPUS to 4 in g5_defconfig * CONFIG_TIGON3=y instead of =m in g5_defconfig Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc64: remove broken/bitrotted HMT supportAnton Blanchard2006-02-243-138/+4Star
| | | | | | | | | | | HMT support is currently broken and needs to be reworked to play nicely with the SMT scheduler. Remove the bit rotten bits for the time being. I also updated an incorrect comment, we enter __secondary_hold with the physical cpu id in r3. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fix runlatch performance issuesAnton Blanchard2006-02-243-10/+35
| | | | | | | | | | | | | | The runlatch SPR can take a lot of time to write. My original runlatch code would set it on every exception entry even though most of the time this was not required. It would also continually set it in the idle loop, which is an issue on an SMT capable processor. Now we cache the runlatch value in a threadinfo bit, and only check for it in decrementer and hardware interrupt exceptions as well as the idle loop. Boot on POWER3, POWER5 and iseries, and compile tested on pmac32. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc64: fix spinlock recursion in native_hpte_clearR Sharada2006-02-241-1/+6
| | | | | | | | | | native_hpte_clear has a spinlock recursion problem with the native_tlbie_lock being called twice, once in native_hpte_clear() and once within tlbie(). Fix the problem by changing the call to tlbie() in native_hpte_clear() to __tlbie(). It still supports only 4k pages for now. Signed-off-by: R Sharada <sharada@in.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: disable OProfile for iSeriesKelly Daly2006-02-241-0/+1
| | | | | | | | Disable OProfile in Kconfig for iSeries to prevent hangs. OProfile was not originally intended to work with legacy iSeries. Signed-off-by: Kelly Daly <kelly@au.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: fix altivec_unavailable_exception OopsesAlan Curry2006-02-242-0/+2
| | | | | | | | | | | | | altivec_unavailable_exception is called without setting r3... it looks like the r3 that actually gets passed in as struct pt_regs *regs is the undisturbed value of r3 at the time the altivec instruction was encountered. The user actually gets to choose the pt_regs printed in the Oops! This fixes the oops by passing the correct pt_regs pointer to altivec_unavailable_exception. Signed-off-by: Alan Curry <pacman@TheWorld.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Trivial fix to set the proper timeout value for kdumpHaren Myneni2006-02-241-1/+3
| | | | | | | | | | The panic CPU is waiting forever due to some large timeout value if some CPU is not responding to an IPI. This patch fixes the problem - the maximum waiting period will be 10 seconds and then the kdump boot will go ahead. Signed-off-by: Haren Myneni <haren@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc: fix adb breakage in xmonOlaf Hering2006-02-243-486/+3Star
| | | | | | | | Fix up xmon compilation after the last change. Remove lots of dead code, all the pmac and chrp support is in arch/powerpc Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Only calculate htab_size in one place for kexecMichael Ellerman2006-02-242-8/+5Star
| | | | | | | | | | | | | | | | | For kexec we need to know the size of the MMU hash table. Currently we calculate the size once in the htab code, and then twice more in the kexec code, once using htab_hash_mask and once using ppc64_pft_size. On some machines the ppc64_pft_size calculation is broken because ppc64_pft_size is not set. So we need to fix the second calculation, but better still we should just calculate the size once and use it everywhere else. Tested on Power5 LPAR, Power4 non-LPAR and Power3. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Initialise hvlpevent_queue.lock correctlyMichael Ellerman2006-02-231-0/+2
| | | | | | | | | When I changed the hvlpevent_queue code to use a spinlock instead of a custom atomic (719d1cd86780c156f954fc34f34481adac197aec) I didn't initialise the lock anywhere, oops. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [ARM] 3347/1: Bugfix for ixp4xx_set_irq_type()Mårten Wikström2006-02-221-7/+13
| | | | | | | | | | | | Patch from Mårten Wikström This patch fixes a bug in ixp4xx_set_irq_type() which leads to GPIO being incorrectly set to both edge triggered for raising as well as falling edge interrupt types. See the previous discussion on patch 3312/1. Signed-off-by: Mårten Wikström <marten.wikstrom@passito.se> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3325/2: GPIO function to control multi-drive (open collector) capabilityAndrew Victor2006-02-222-1/+20
| | | | | | | | | | | | | | | | | | | Patch from Andrew Victor This patch adds the at91_set_multi_drive() function to enable/disable the multi-drive (open collector) pin capability on the AT91RM9200 processor. This is necessary to fix the UDC (USB Gadget) driver for the AT91RM9200 board as it will not allow the board reset line to be pulled low if the pullup is not driven as an open collector output as the boards are wired to the USB connector on both the DK/EK. This version of the patch updates it to 2.6.16-rc4. Orignal patch by Jeff Warren. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] CONFIG_CPU_MPCORE -> CONFIG_CPU_32v6KRussell King2006-02-222-2/+2
| | | | | | | CONFIG_CPU_MPCORE has never been a configuration symbol - it should be CONFIG_CPU_32v6K. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3345/1: Fix interday RTC alarmsUli Luckas2006-02-221-4/+12
| | | | | | | | | | | | | | | | Patch from Uli Luckas This is a bugfix. The comment in arch/arm/common/rtctime.c explains it: * FIXME: for now, we just copy the alarm time because we're lazy (and * is therefore buggy - setting a 10am alarm at 8pm will not result in * the alarm triggering.) This patch adds one day to the alarm iff the alarm wrapped beyond midnight and therefore appears to be in the past. Signed-off-by: Uli Luckas <u.luckas@road-gmbh.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3344/1: NSLU2: beeper supportAlessandro Zummo2006-02-221-0/+7
| | | | | | | | | | | Patch from Alessandro Zummo This patch adds support for the beeper embedded in the NSLU2 to the machine setup code. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3342/1: NSLU2: Protect power button init routine with machine_is_nslu2()Alessandro Zummo2006-02-221-0/+3
| | | | | | | | | | | Patch from Alessandro Zummo The power button exit routine for the Linksys NSLU2 was not protected by a machine_is_nslu2(). This patch fixes it. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3340/1: Fix the PCI setup for direct master access to SDRAMCatalin Marinas2006-02-221-45/+48
| | | | | | | | | | | | | | Patch from Catalin Marinas The initial code did not configure the inbound memory windows for direct master access to the SDRAM. This patch creates a 1:1 mapping between the Versatile/PB PCI memory windows and its SDRAM. Note that an updated FPGA image is needed for Versatile/PB since the original windows were 1MB and not able to cover the whole SDRAM (now extended to 256MB). The patch also fixes the PCI IRQ mapping for slot #2. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Update mach-typesRussell King2006-02-221-2/+33
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Add panic-on-oops supportRussell King2006-02-221-0/+8
| | | | | | | | Although you could ask the kernel for panic-on-oops, it remained non-functional because the architecture specific code fragment had not been implemented. Add it, so it works as advertised. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [MIPS] Disable CONFIG_ISCSI_TCP; it triggers a gcc 3.4 endless loop.Ralf Baechle2006-02-211-4/+9
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Yosemite: Fix build damage by dc8f6029cd51af1b148846a32e68d69013a5cc0f.Ralf Baechle2006-02-211-1/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] jiffies_to_compat_timeval fixAtsushi Nemoto2006-02-212-4/+6
| | | | | | | The last argument of div_long_long_rem() must be long. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Add topology_init.Rojhalat Ibrahim2006-02-211-0/+20
| | | | | | | | | | A recent patch introduced cpu topology in sysfs. When you run a kernel with SMP and sysfs enabled, you now get an Oops on boot. The following patch fixes that by adding topology_init to arch/mips/kernel/smp.c. The code is copied from arch/s390/kernel/smp.c. Signed-off-by: Rojhalat Ibrahim <imr@rtschenk.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix compiler warnings in arch/mips/sibyte/bcm1480/irq.cMartin Michlmayr2006-02-211-3/+2Star
| | | | | | | | | | | | | Fix the following compiler warnings: CC arch/mips/sibyte/bcm1480/irq.o arch/mips/sibyte/bcm1480/irq.c: In function ‘bcm1480_set_affinity’: arch/mips/sibyte/bcm1480/irq.c:168: warning: ISO C90 forbids mixed declarations and code arch/mips/sibyte/bcm1480/irq.c: In function ‘ack_bcm1480_irq’: arch/mips/sibyte/bcm1480/irq.c:230: warning: ISO C90 forbids mixed declarations and code Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: Config option names shouldn't be prefixed with CONFIG_Ralf Baechle2006-02-211-2/+2
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: #if CONFIG_* doesn't fly.Ralf Baechle2006-02-211-1/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] N32: Make sure pointer is good before passing it to sys_waitid().Ralf Baechle2006-02-211-0/+3
| | | | | | After all we're calling sys_waitid() with fs set to KERNEL_DS ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] N32: Fix N32 rt_sigtimedwait and rt_sigsuspend breakage.Ralf Baechle2006-02-213-21/+35
| | | | | | | Originally found through an oops in the Gentoo N32 userland build; patch based on original patch by Daniel Jacobwitz. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Reformat _sys32_rt_sigsuspend with tabs instead of space for consistency.Ralf Baechle2006-02-211-1/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Make do_signal32 return void.Martin Michlmayr2006-02-211-5/+3Star
| | | | | | | | do_signal has been changed to return void since the "return value is ignored everywhere". Convert do_signal32 accordingly. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Add support for TIF_RESTORE_SIGMASK for signal32Martin Michlmayr2006-02-211-27/+41
| | | | | | | | | | Following the recent implementation of TIF_RESTORE_SIGMASK in arch/mips/kernel/signal.c, 64-bit kernels with 32-bit user-land compatibility oops when starting init. signal32.c needs to be converted to use TIF_RESTORE_SIGMASK too. Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Make integer overflow exceptions in kernel mode fatal.Ralf Baechle2006-02-211-1/+3
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Merge branch 'fixes.b8' of ↵Linus Torvalds2006-02-211-0/+3
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/bird
| * [PATCH] m68k: pm_power_off() breakageAl Viro2006-02-181-0/+3
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds2006-02-219-233/+108Star
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| * | [PATCH] powerpc: Fix bug in spinup of renumbered secondary threadsMichael Ellerman2006-02-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the logical and physical cpu ids of a secondary thread don't match, we will fail to spin the thread up on pSeries machines due to a bug in pseries/smp.c We call the RTAS "start-cpu" method with the physical cpu id, the address of pSeries_secondary_smp_init and the value to pass that function in r3. Currently we pass "lcpu", the logical cpu id, but pSeries_secondary_smp_init expects the physical cpu id in r3. We should be passing pcpu instead. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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