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author | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 15:39:22 -0800 |
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committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-07 15:39:22 -0800 |
commit | 6ee7e78e7c78d871409ad4df30551c9355be7d0e (patch) | |
tree | 84deeea72d7234d0b5652483b11760f394ae1131 /arch/ia64/kernel/smp.c | |
parent | 7f3af60e5a444b287d740a84998a8f480645dadf (diff) | |
parent | 52fd91088bcbaea5ab441d09d39c21eb684e54ea (diff) | |
download | kernel-crypto-6ee7e78e7c78d871409ad4df30551c9355be7d0e.tar.gz kernel-crypto-6ee7e78e7c78d871409ad4df30551c9355be7d0e.tar.xz kernel-crypto-6ee7e78e7c78d871409ad4df30551c9355be7d0e.zip |
Merge branch 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of master.kernel.org:/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] replace kmalloc+memset with kzalloc
[IA64] resolve name clash by renaming is_available_memory()
[IA64] Need export for csum_ipv6_magic
[IA64] Fix DISCONTIGMEM without VIRTUAL_MEM_MAP
[PATCH] Add support for type argument in PAL_GET_PSTATE
[IA64] tidy up return value of ip_fast_csum
[IA64] implement csum_ipv6_magic for ia64.
[IA64] More Itanium PAL spec updates
[IA64] Update processor_info features
[IA64] Add se bit to Processor State Parameter structure
[IA64] Add dp bit to cache and bus check structs
[IA64] SN: Correctly update smp_affinty mask
[IA64] sparse cleanups
[IA64] IA64 Kexec/kdump
Diffstat (limited to 'arch/ia64/kernel/smp.c')
-rw-r--r-- | arch/ia64/kernel/smp.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index 6ab95ceaf9d..b1b9aa4364b 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -30,6 +30,7 @@ #include <linux/delay.h> #include <linux/efi.h> #include <linux/bitops.h> +#include <linux/kexec.h> #include <asm/atomic.h> #include <asm/current.h> @@ -66,6 +67,7 @@ static volatile struct call_data_struct *call_data; #define IPI_CALL_FUNC 0 #define IPI_CPU_STOP 1 +#define IPI_KDUMP_CPU_STOP 3 /* This needs to be cacheline aligned because it is written to by *other* CPUs. */ static DEFINE_PER_CPU(u64, ipi_operation) ____cacheline_aligned; @@ -155,7 +157,11 @@ handle_IPI (int irq, void *dev_id) case IPI_CPU_STOP: stop_this_cpu(); break; - +#ifdef CONFIG_CRASH_DUMP + case IPI_KDUMP_CPU_STOP: + unw_init_running(kdump_cpu_freeze, NULL); + break; +#endif default: printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n", this_cpu, which); break; @@ -213,6 +219,26 @@ send_IPI_self (int op) send_IPI_single(smp_processor_id(), op); } +#ifdef CONFIG_CRASH_DUMP +void +kdump_smp_send_stop() +{ + send_IPI_allbutself(IPI_KDUMP_CPU_STOP); +} + +void +kdump_smp_send_init() +{ + unsigned int cpu, self_cpu; + self_cpu = smp_processor_id(); + for_each_online_cpu(cpu) { + if (cpu != self_cpu) { + if(kdump_status[cpu] == 0) + platform_send_ipi(cpu, 0, IA64_IPI_DM_INIT, 0); + } + } +} +#endif /* * Called with preeemption disabled. */ |