From 7aa1c8f47e7e792d11f898cbdddaf6fa21ff08cc Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Thu, 11 Oct 2012 18:14:58 +0200 Subject: MIPS: kdump: Add support [ralf@linux-mips.org: Original patch by Maxim Uvarov with plenty of further shining, polishing, debugging and testing by me.] Signed-off-by: Maxim Uvarov Cc: linux-mips@linux-mips.org Cc: kexec@lists.infradead.org Cc: horms@verge.net.au Patchwork: https://patchwork.linux-mips.org/patch/1025/ Signed-off-by: Ralf Baechle --- arch/mips/include/asm/smp.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/mips/include/asm/smp.h') diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h index d4fb4d852a6d..f33b5fd6972b 100644 --- a/arch/mips/include/asm/smp.h +++ b/arch/mips/include/asm/smp.h @@ -40,6 +40,8 @@ extern int __cpu_logical_map[NR_CPUS]; #define SMP_CALL_FUNCTION 0x2 /* Octeon - Tell another core to flush its icache */ #define SMP_ICACHE_FLUSH 0x4 +/* Used by kexec crashdump to save all cpu's state */ +#define SMP_DUMP 0x8 extern volatile cpumask_t cpu_callin_map; @@ -91,4 +93,8 @@ static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask) mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION); } +#if defined(CONFIG_KEXEC) +extern void (*dump_ipi_function_ptr)(void *); +void dump_send_ipi(void (*dump_ipi_callback)(void *)); +#endif #endif /* __ASM_SMP_H */ -- cgit v1.2.3