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* [ARM] Mark SMP local timer and IPI as exception entriesRussell King2007-05-08
| | | | | | This allows the backtrace to dump the exception stack contents. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Export smp_call_function()Russell King2006-11-26
| | | | | | | smp_call_function() will be used with the MP/core oprofile support patch. Export it as _GPL. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix SMP irqflags supportRussell King2006-10-28
| | | | | | | | | The IRQ changes a while back broke the build for SMP machines. Fix up the SMP code to use set_irq_regs/get_irq_regs as appropriate. Also, fix a warning in arch/arm/kernel/time.c where 'regs' becomes unused for SMP builds. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] cpumask: export cpu_online_map and cpu_possible_map consistentlyGreg Banks2006-10-02
| | | | | | | | | | cpumask: ensure that the cpu_online_map and cpu_possible_map bitmasks, and hence all the macros in <linux/cpumask.h> that require them, are available to modules for all supported combinations of architecture and CONFIG_SMP. Signed-off-by: Greg Banks <gnb@melbourne.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [ARM] SMP: don't set cpu_*_map in smp_prepare_boot_cpuRussell King2006-03-25
| | | | | | | | | The recent addition of boot_cpu_init() implements the initialisation of the online, present and possible cpu maps for the boot CPU, so there is no reason to duplicate this in the architecture smp_prepare_boot_cpu() hook. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Fix SMP initialisation oopsRussell King2006-02-16
| | | | | | | | | | | | | | | | | | | | A change to the SMP initialisation caused the following oops: CPU1: Booted secondary processor CPU1: D VIPT write-back cache CPU1: I cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets CPU1: D cache: 32768 bytes, associativity 4, 32 byte lines, 256 sets <7>Calibrating delay loop... 83.14 BogoMIPS (lpj=415744) <1>Unable to handle kernel NULL pointer dereference at virtual address 0000001c ... PC is at enqueue_task+0x1c/0x64 LR is at activate_task+0xcc/0xe4 SMP initialisation now requires cpu_possible_map to be initialised in setup_arch(). Move this from smp_prepare_cpus() to smp_init_cpus() and call it from our setup_arch() if CONFIG_SMP is enabled. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] arm: task_stack_page()Al Viro2006-01-12
| | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] Restore apparant pointless change in arch/arm/kernel/smp.cRussell King2005-11-12
| | | | | | Restore smp.c back to how it used to be. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] sched: disable preempt in idle tasksNick Piggin2005-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Run idle threads with preempt disabled. Also corrected a bugs in arm26's cpu_idle (make it actually call schedule()). How did it ever work before? Might fix the CPU hotplugging hang which Nigel Cunningham noted. We think the bug hits if the idle thread is preempted after checking need_resched() and before going to sleep, then the CPU offlined. After calling stop_machine_run, the CPU eventually returns from preemption and into the idle thread and goes to sleep. The CPU will continue executing previous idle and have no chance to call play_dead. By disabling preemption until we are ready to explicitly schedule, this bug is fixed and the idle threads generally become more robust. From: alexs <ashepard@u.washington.edu> PPC build fix From: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> MIPS build fix Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM SMP] Add core ARM support for local timersRussell King2005-11-08
| | | | | | | Add infrastructure for supporting per-cpu local timers to update the profiling information and update system time accounting. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] More sparse fixesRussell King2005-11-08
| | | | | | | | | arch/arm/kernel/irq.c:998:26: warning: Using plain integer as NULL pointer arch/arm/kernel/smp.c:145:25: warning: Using plain integer as NULL pointer arch/arm/kernel/smp.c:362:5: warning: symbol 'smp_call_function_on_cpu' was not declared. Should it be static? drivers/video/amba-clcd.c:521:12: warning: symbol 'amba_clcdfb_init' was not declared. Should it be static? Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Fix some sparse warnings in SMP codeRussell King2005-11-08
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Add hotplug CPU infrastructureRussell King2005-11-02
| | | | | | | This patch adds the infrastructure to support hotplug CPU on ARM platforms. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Fix a couple of warningsRussell King2005-11-02
| | | | | | Use *cpus_addr() to display the mask of pending/to be called CPUs. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Track CPU idle threadsRussell King2005-11-02
| | | | | | Track the idle thread task_struct for each CPU. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] Stack starts at THREAD_START_SP offset, not THREAD_SIZE-8Russell King2005-09-04
| | | | | | Use the correct constants. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM SMP] Ensure secondary CPUs have a clean TLBRussell King2005-07-28
| | | | | | | | | | Since ARMv6 CPUs will not flush the TLB on context switches, it is possible that we may end up with some global TLB entries remaining present, eventually upsetting userspace. Explicitly flush the entire TLB on secondary CPUs as they startup, after we have switched to the init_mm page tables. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM SMP: Mark CPU init functions/data with __cpuinit/...dataRussell King2005-07-17
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM SMP: Initialise cpu_present_mapRussell King2005-07-11
| | | | | | | Rather than relying on the fixup code in init/main.c, explicitly initialise cpu_present_map. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM SMP: We list IRQs for present CPUs, not online CPUsRussell King2005-07-11
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM SMP: Rename cpu_present_mask to cpu_possible_mapRussell King2005-07-11
| | | | | | | The kernel's terminology for this is cpu_possible_map not cpu_present_mask. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM SMP: Add IPI support code for SMP TLB flushingRussell King2005-06-28
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM SMP: Messages about CPUs should be prefixed by CPU%uRussell King2005-06-19
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM SMP: Add support for startup of secondary processorsRussell King2005-06-18
| | | | | | | | | 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>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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