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authorRalf Baechle <ralf@linux-mips.org>2012-10-11 20:14:58 +0400
committerRalf Baechle <ralf@linux-mips.org>2012-12-13 19:46:47 +0400
commit7aa1c8f47e7e792d11f898cbdddaf6fa21ff08cc (patch)
treee34986c087ab7a9f91c8303eda7f13736e315905 /arch/mips/include/asm/smp.h
parent98cdee0eae861e8d25c147a72c5f309e883f4ed8 (diff)
downloadlinux-7aa1c8f47e7e792d11f898cbdddaf6fa21ff08cc.tar.xz
MIPS: kdump: Add support
[ralf@linux-mips.org: Original patch by Maxim Uvarov <muvarov@gmail.com> with plenty of further shining, polishing, debugging and testing by me.] Signed-off-by: Maxim Uvarov <muvarov@gmail.com> 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 <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/smp.h')
-rw-r--r--arch/mips/include/asm/smp.h6
1 files changed, 6 insertions, 0 deletions
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 */