Merge branch 'master' of git://1984.lsi.us.es/nf

[firefly-linux-kernel-4.4.55.git] / arch / mips / kernel / smp.c

diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 9005bf9fb859552101d7e68638adc73ba4978ee7..2e6374a589ec622a85dde2ad1c9394b93bd05c68 100644 (file)
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -386,3 +386,20 @@ void flush_tlb_one(unsigned long vaddr)
 
 EXPORT_SYMBOL(flush_tlb_page);
 EXPORT_SYMBOL(flush_tlb_one);
+
+#if defined(CONFIG_KEXEC)
+void (*dump_ipi_function_ptr)(void *) = NULL;
+void dump_send_ipi(void (*dump_ipi_callback)(void *))
+{
+       int i;
+       int cpu = smp_processor_id();
+
+       dump_ipi_function_ptr = dump_ipi_callback;
+       smp_mb();
+       for_each_online_cpu(i)
+               if (i != cpu)
+                       mp_ops->send_ipi_single(i, SMP_DUMP);
+
+}
+EXPORT_SYMBOL(dump_send_ipi);
+#endif