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* [MIPS] SB1: Check for -mno-sched-prolog if building corelis debug kernel.Ralf Baechle2006-03-18
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: Fix race in sb1250_gettimeoffset().Ralf Baechle2006-03-18
| | | | | | | | | | | | | | | | | | | | | | | From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: sb1250_gettimeoffset() simply reads the current cpu 0 timer remaining value, however once this counter reaches 0 and the interrupt is raised, it immediately resets and begins to count down again. If sb1250_gettimeoffset() is called on cpu 1 via do_gettimeofday() after the timer has reset but prior to cpu 0 processing the interrupt and taking write_seqlock() in timer_interrupt() it will return a full value (or close to it) causing time to jump backwards 1ms. Once cpu 0 handles the interrupt and timer_interrupt() gets far enough along it will jump forward 1ms. Fix this problem by implementing mips_hpt_*() on sb1250 using a spare timer unrelated to the existing periodic interrupt timers. It runs at 1Mhz with a full 23bit counter. This eliminated the custom do_gettimeoffset() for sb1250 and allowed use of the generic fixed_rate_gettimeoffset() using mips_hpt_*() and timerhi/timerlo. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Sibyte: Fix interrupt timer off by one bug.Ralf Baechle2006-03-18
| | | | | | | | | From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: The timers need to be loaded with 1 less than the desired interval not the interval itself. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Protect more of timer_interrupt() by xtime_lock.Ralf Baechle2006-03-18
| | | | | | | | | | | From Dave Johnson <djohnson+linuxmips@sw.starentnetworks.com>: * do_timer() expects the arch-specific handler to take the lock as it modifies jiffies[_64] and xtime. * writing timerhi/lo in timer_interrupt() will mess up fixed_rate_gettimeoffset() which reads timerhi/lo. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Simple patch to power off DBAU1200Matej Kupljen2006-03-18
| | | | | Signed-off-by: Matej Kupljen <matej.kupljen@ultra.si> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix DBAu1550 software power off.Sergei Shtylylov2006-03-18
| | | | | Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] local_r4k_flush_cache_page fixAtsushi Nemoto2006-03-18
| | | | | | | | | | If dcache_size != icache_size or dcache_size != scache_size, or set-associative cache, icache/scache does not flushed properly. Make blast_?cache_page_indexed() masks its index value correctly. Also, use physical address for physically indexed pcache/scache. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Get rid of the IP22-specific code in arclib.Ralf Baechle2006-03-18
| | | | | | This breaks the kernel build if sgiwd93 was configured as a module. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] x86: check for online cpus before bringing them upSrivatsa Vaddagiri2006-03-17
| | | | | | | | | | | | | | | | Bryce reported a bug wherein offlining CPU0 (on x86 box) and then subsequently onlining it resulted in a lockup. On x86, CPU0 is never offlined. The subsequent attempt to online CPU0 doesn't take that into account. It actually tries to bootup the already booted CPU. Following patch fixes the problem (as acknowledged by Bryce). Please consider for inclusion in 2.6.16. Check if cpu is already online. Signed-off-by: Srivatsa Vaddagiri <vatsa@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds2006-03-16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge: powerpc: update defconfigs [PATCH] powerpc: properly configure DDR/P5IOC children devs [PATCH] powerpc: remove duplicate EXPORT_SYMBOLS [PATCH] powerpc: RTC memory corruption [PATCH] powerpc: enable NAP only on cpus who support it to avoid memory corruption [PATCH] powerpc: Clarify wording for CRASH_DUMP Kconfig option [PATCH] powerpc/64: enable CONFIG_BLK_DEV_SL82C105 [PATCH] powerpc: correct cacheflush loop in zImage powerpc: Fix problem with time going backwards powerpc: Disallow lparcfg being a module
| * powerpc: update defconfigsPaul Mackerras2006-03-16
| | | | | | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: properly configure DDR/P5IOC children devsJohn Rose2006-03-16
| | | | | | | | | | | | | | | | | | | | | | The dynamic add path for PCI Host Bridges can fail to configure children adapters under P5IOC controllers. It fails to properly fixup bus/device resources, and it fails to properly enable EEH. Both of these steps need to occur before any children devices are enabled in pci_bus_add_devices(). Signed-off-by: John Rose <johnrose@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: remove duplicate EXPORT_SYMBOLSOlaf Hering2006-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | remove warnings when building a 64bit kernel. smp_call_function triggers also with 32bit kernel. WARNING: vmlinux: duplicate symbol 'smp_call_function' previous definition was in vmlinux arch/powerpc/kernel/ppc_ksyms.c:164:EXPORT_SYMBOL(smp_call_function); arch/powerpc/kernel/smp.c:300:EXPORT_SYMBOL(smp_call_function); WARNING: vmlinux: duplicate symbol 'ioremap' previous definition was in vmlinux arch/powerpc/kernel/ppc_ksyms.c:113:EXPORT_SYMBOL(ioremap); arch/powerpc/mm/pgtable_64.c:321:EXPORT_SYMBOL(ioremap); WARNING: vmlinux: duplicate symbol '__ioremap' previous definition was in vmlinux arch/powerpc/kernel/ppc_ksyms.c:117:EXPORT_SYMBOL(__ioremap); arch/powerpc/mm/pgtable_64.c:322:EXPORT_SYMBOL(__ioremap); WARNING: vmlinux: duplicate symbol 'iounmap' previous definition was in vmlinux arch/powerpc/kernel/ppc_ksyms.c:118:EXPORT_SYMBOL(iounmap); arch/powerpc/mm/pgtable_64.c:323:EXPORT_SYMBOL(iounmap); Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: RTC memory corruptionMichael Neuling2006-03-16
| | | | | | | | | | | | | | | | We should be memset'ing the data we are pointing to, not the pointer itself. This is in an error path so we probably don't hit it much. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: enable NAP only on cpus who support it to avoid memory ↵Benjamin Herrenschmidt2006-03-16
| | | | | | | | | | | | | | | | | | | | | | corruption This patch fixes incorrect setting of powersave_nap to 1 on all PowerMacs, potentially causing memory corruption on some models. This bug was introuced by me during the 32/64 bits merge. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: Clarify wording for CRASH_DUMP Kconfig optionMichael Ellerman2006-03-16
| | | | | | | | | | | | | | | | | | The wording of the CRASH_DUMP Kconfig option is not very clear. It gives you a kernel that can be used _as_ the kdump kernel, not a kernel that can boot into a kdump kernel. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc/64: enable CONFIG_BLK_DEV_SL82C105Olaf Hering2006-03-16
| | | | | | | | | | | | | | | | | | Enable the onboard IDE driver for p610, p615 and p630. They have the CD connected to this card. All other RS/6000 systems with this controller have no connectors and dont need this option. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [PATCH] powerpc: correct cacheflush loop in zImageOlaf Hering2006-03-16
| | | | | | | | | | | | | | | | Correct the loop for cacheflush. No idea where I copied the code from, but the original does not work correct. Maybe the flush is not needed. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Fix problem with time going backwardsPaul Mackerras2006-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The recent changes to keep gettimeofday in sync with xtime had the side effect that it was occasionally possible for the time reported by gettimeofday to go back by a microsecond. There were two reasons: (1) when we recalculated the offsets used by gettimeofday every 2^31 timebase ticks, we lost an accumulated fractional microsecond, and (2) because the update is done some time after the notional start of jiffy, if ntp is slowing the clock, it is possible to see time go backwards when the timebase factor gets reduced. This fixes it by (a) slowing the gettimeofday clock by about 1us in 2^31 timebase ticks (a factor of less than 1 in 3.7 million), and (b) adjusting the timebase offsets in the rare case that the gettimeofday result could possibly go backwards (i.e. when ntp is slowing the clock and the timer interrupt is late). In this case the adjustment will reduce to zero eventually because of (a). Signed-off-by: Paul Mackerras <paulus@samba.org>
| * powerpc: Disallow lparcfg being a modulePaul Mackerras2006-03-13
| | | | | | | | | | | | | | | | | | | | The lparcfg code needs several things which are pretty arcane internal details and which we don't want to export, which means that lparcfg doesn't work when built as a module. This makes it a bool instead of a tristate in the Kconfig so that users can't try to build it as a module. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [ARM] 3362/1: [cleanup] - duplicate decleration of mem_fclk_21285Ben Dooks2006-03-15
| | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks arch/arm/kernel/setup.c declares mem_fclk_21285 when this is already declared in include/asm-arm/system.h Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 3365/1: [cleanup] header for compat.c exported functionsBen Dooks2006-03-15
| | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks arch/arm/kernel/compat.c exports two functions, convert_to_tag_list and squash_mem_tags which are not defined in any header files, and not used outside arch/arm/kernel. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 3363/1: [cleanup] process.c - fix warningsBen Dooks2006-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks Fix the following warnings from sparse: arch/arm/kernel/process.c:86:6: warning: symbol 'default_idle' was not declared. Should it be static? arch/arm/kernel/process.c:378:5: warning: symbol 'dump_fpu' was not declared. Should it be static? Include <linux/elfcore.h> for dump_fpu() decleration, and make default_idle() static as it is not used outside the file. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 3358/1: [S3C2410] add missing SPI DMA resourcesAlbrecht Dreß2006-03-15
| | | | | | | | | | | | | | | | | | | | Patch from Albrecht Dreß Add DMA resources to s3c2410 spi platform devices - dma_(alloc|free)_coherent should now work as expected. Signed-off-by: Albrecht Dreß <albrecht.dress@lios-tech.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] 3357/1: enable frontlight on colliePavel Machek2006-03-15
| | | | | | | | | | | | | | | | | | | | | | Patch from Pavel Machek Enable frontlight during collie bootup, so that display is actually readable in anything other than bright sunlight. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] Fix "thead" typoRussell King2006-03-15
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] Plug kdump shutdown race windowManeesh Soni2006-03-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lapic_shutdown() re-enables interrupts which is un-desirable for panic case, so use local_irq_save() and local_irq_restore() to keep the irqs disabled for kexec on panic case, and close a possible race window while kdump shutdown as shown in this stack trace -- BUG: spinlock lockup on CPU#1, bash/4396, c52781a0 [<c01c1870>] _raw_spin_lock+0xb7/0xd2 [<c029e148>] _spin_lock+0x6/0x8 [<c011b33f>] scheduler_tick+0xe7/0x328 [<c0128a7c>] update_process_times+0x51/0x5d [<c0114592>] smp_apic_timer_interrupt+0x4f/0x58 [<c01141ff>] lapic_shutdown+0x76/0x7e [<c0104d7c>] apic_timer_interrupt+0x1c/0x30 [<c01141ff>] lapic_shutdown+0x76/0x7e [<c0116659>] machine_crash_shutdown+0x83/0xaa [<c013cc36>] crash_kexec+0xc1/0xe3 [<c029e148>] _spin_lock+0x6/0x8 [<c013cc22>] crash_kexec+0xad/0xe3 [<c0215280>] __handle_sysrq+0x84/0xfd [<c018d937>] write_sysrq_trigger+0x2c/0x35 [<c015e47b>] vfs_write+0xa2/0x13b [<c015ea73>] sys_write+0x3b/0x64 [<c0103c69>] syscall_call+0x7/0xb Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Revert "[PATCH] x86-64: Fix up handling of non canonical user RIPs"Linus Torvalds2006-03-14
|/ | | | | | | | | | | | | | This reverts commit c33d4568aca9028a22857f94f5e0850012b6444b. Andrew Clayton and Hugh Dickins report that it's broken for them and causes strange page table and slab corruption, and spontaneous reboots. Let's get it right next time. Cc: Andrew Clayton <andrew@rootshell.co.uk> Cc: Hugh Dickins <hugh@veritas.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] x86-64: Fix up handling of non canonical user RIPsAndi Kleen2006-03-13
| | | | | | | | | | | | | | | | EM64T CPUs have somewhat weird error reporting for non canonical RIPs in SYSRET. We can't handle any exceptions there because the exception handler would end up running on the user stack which is unsafe. To avoid problems any code that might end up with a user touched pt_regs should return using int_ret_from_syscall. int_ret_from_syscall ends up using IRET, which allows safe exceptions. Cc: Ernie Petrides <petrides@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-03-12
|\ | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] iwmmxt thread state alignment [ARM] 3350/1: Enable 1-wire on ARM [ARM] 3356/1: Workaround for the ARM1136 I-cache invalidation problem [ARM] 3355/1: NSLU2: remove propmt depends [ARM] 3354/1: NAS100d: fix power led handling [ARM] Fix muldi3.S
| * [ARM] iwmmxt thread state alignmentRussell King2006-03-12
| | | | | | | | | | | | | | | | | | This patch removes the reliance of iwmmxt on hand coded alignments. Since thread_info is always 8K aligned, specifying that fpstate is 8-byte aligned achieves the same effect without needing to resort to hand coded alignments. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3350/1: Enable 1-wire on ARMAlessandro Zummo2006-03-10
| | | | | | | | | | | | | | | | | | | | Patch from Alessandro Zummo This patches add the 1-wire drivers to the ARM Kconfig. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3356/1: Workaround for the ARM1136 I-cache invalidation problemCatalin Marinas2006-03-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Catalin Marinas ARM1136 erratum 371025 (category 2) specifies that, under rare conditions, an invalidate I-cache by MVA (line or range) operation can fail to invalidate a cache line. The recommended workaround is to either invalidate the entire I-cache or invalidate the range by set/way rather than MVA. Note that for a 16K cache size, invalidating a 4K page by set/way is equivalent to invalidating the entire I-cache. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3355/1: NSLU2: remove propmt dependsAlessandro Zummo2006-03-08
| | | | | | | | | | | | | | | | | | | | | | | | Patch from Alessandro Zummo The patch that would have made the NSLU2 kernel non compatible with other ixp4xx machs never entered the kernel. So it is actually safe to remove the prompt dependencies. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3354/1: NAS100d: fix power led handlingAlessandro Zummo2006-03-08
| | | | | | | | | | | | | | | | | | | | Patch from Alessandro Zummo Disable GPIO clocks to allow the power led to work properly. Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Fix muldi3.SRussell King2006-03-08
| | | | | | | | | | | | | | | | When shifting the low-parts of signed numbers, a logical shift should be used to avoid sign-extending a bit which isn't a sign bit. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'release' of ↵Linus Torvalds2006-03-10
|\ \ | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Fix race in the accessed/dirty bit handlers
| * | [IA64] Fix race in the accessed/dirty bit handlersChristoph Lameter2006-03-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A pte may be zapped by the swapper, exiting process, unmapping or page migration while the accessed or dirty bit handers are about to run. In that case the accessed bit or dirty is set on an zeroed pte which leads the VM to conclude that this is a swap pte. This may lead to - Messages from the vm like swap_free: Bad swap file entry 4000000000000000 - Processes being aborted swap_dup: Bad swap file entry 4000000000000000 VM: killing process .... Page migration is particular suitable for the creation of this race since it needs to remove and restore page table entries. The fix here is to check for the present bit and simply not update the pte if the page is not present anymore. If the page is not present then the fault handler should run next which will take care of the problem by bringing the page back and then mark the page dirty or move it onto the active list. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | [PATCH] s390: Increase spinlock retry code performanceChristian Ehrhardt2006-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the code tries up to spin_retry times to grab a lock using the cs instruction. The cs instruction has exclusive access to a memory region and therefore invalidates the appropiate cache line of all other cpus. If there is contention on a lock this leads to cache line trashing. This can be avoided if we first check wether a cs instruction is likely to succeed before the instruction gets actually executed. Signed-off-by: Christian Ehrhardt <ehrhardt@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] xtensa must set RWSEM_GENERIC_SPINLOCK=yAdrian Bunk2006-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | /usr/src/ctest/git/kernel/mm/rmap.c: In function `page_referenced_one': /usr/src/ctest/git/kernel/mm/rmap.c:354: warning: implicit declaration of function `rwsem_is_locked' Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] arch/sh/Kconfig: don't source non-existing Kconfig filesAdrian Bunk2006-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/sh/Kconfig shouldn't source non-existing Kconfig files. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] alpha: fix IRQ handling lockupIvan Kokshaysky2006-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a lockup which was introduced during the conversion to the generic IRQ framework. Cc: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [MIPS] Always pass -msoft-float.Ralf Baechle2006-03-09
| | | | | | | | | | | | | | | | | | Some people still haven't heared that fp in the kernel is forbidden. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | [MIPS] Scatter a bunch of __init over tlbex.c.Ralf Baechle2006-03-09
| | | | | | | | | | | | | | | | | | Found by make buildcheck. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | [MIPS] Momentum: Resurrect after things were moved around a while ago.Ralf Baechle2006-03-09
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | [MIPS] Discard .exit.text at runtime.Ralf Baechle2006-03-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | At times gcc will place bits of __exit functions into .rodata. If compiled into the kernle itself we used to discard .exit.text - but not the bits left in .rodata. While harmless this did at times result in a large number of warnings. So until gcc fixes this, discard .exit.text at runtime. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | [MIPS] Enable highmem for all MIPS32 and MIPS64 processors.Ralf Baechle2006-03-09
| | | | | | | | | | | | | | | | | | | | | In case a particular system doesn't support highmem the runtime checks will ensure nothing bad is going to happen. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | [MIPS] A struct console.setup function may not be __init.Ralf Baechle2006-03-09
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds2006-03-08
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge: powerpc: Fix various syscall/signal/swapcontext bugs [PATCH] powerpc: incorrect rmo_top handling in prom_init [PATCH] powerpc: Fix incorrect pud_ERROR() message [PATCH] powerpc: Expose SMT and L1 icache snoop userland features [PATCH] powerpc: Fix windfarm_pm112 not starting all control loops [PATCH] powerpc: Fix old g5 issues with windfarm powerpc32: Fix timebase synchronization on 32-bit powermacs powerpc: Turn off verbose debug output in powermac platform functions powerpc: Fix might-sleep warning in program check exception handler
| * | | powerpc: Fix various syscall/signal/swapcontext bugsPaul Mackerras2006-03-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A careful reading of the recent changes to the system call entry/exit paths revealed several problems, plus some things that could be simplified and improved: * 32-bit wasn't testing the _TIF_NOERROR bit in the syscall fast exit path, so it was only doing anything with it once it saw some other bit being set. In other words, the noerror behaviour would apply to the next system call where we had to reschedule or deliver a signal, which is not necessarily the current system call. * 32-bit wasn't doing the call to ptrace_notify in the syscall exit path when the _TIF_SINGLESTEP bit was set. * _TIF_RESTOREALL was in both _TIF_USER_WORK_MASK and _TIF_PERSYSCALL_MASK, which is odd since _TIF_RESTOREALL is only set by system calls. I took it out of _TIF_USER_WORK_MASK. * On 64-bit, _TIF_RESTOREALL wasn't causing the non-volatile registers to be restored (unless perhaps a signal was delivered or the syscall was traced or single-stepped). Thus the non-volatile registers weren't restored on exit from a signal handler. We probably got away with it mostly because signal handlers written in C wouldn't alter the non-volatile registers. * On 32-bit I simplified the code and made it more like 64-bit by making the syscall exit path jump to ret_from_except to handle preemption and signal delivery. * 32-bit was calling do_signal unnecessarily when _TIF_RESTOREALL was set - but I think because of that 32-bit was actually restoring the non-volatile registers on exit from a signal handler. * I changed the order of enabling interrupts and saving the non-volatile registers before calling do_syscall_trace_leave; now we enable interrupts first. Signed-off-by: Paul Mackerras <paulus@samba.org>
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