3 files changed, 43 insertions, 0 deletions

diff --git a/include/asm-ppc64/kexec.h b/include/asm-ppc64/kexec.h
new file mode 100644
index 000000000000..511908afaeeb
--- /dev/null
+++ b/include/asm-ppc64/kexec.h
@@ -0,0 +1,41 @@
+#ifndef _PPC64_KEXEC_H
+#define _PPC64_KEXEC_H
+
+/*
+ * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
+ * I.e. Maximum page that is mapped directly into kernel memory,
+ * and kmap is not required.
+ */
+
+/* Maximum physical address we can use pages from */
+/* XXX: since we copy virt we can use any page we allocate */
+#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
+
+/* Maximum address we can reach in physical address mode */
+/* XXX: I want to allow initrd in highmem.  otherwise set to rmo on lpar */
+#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
+
+/* Maximum address we can use for the control code buffer */
+/* XXX: unused today, ppc32 uses TASK_SIZE, probably left over from use_mm  */
+#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
+
+/* XXX: today we don't use this at all, althogh we have a static stack */
+#define KEXEC_CONTROL_CODE_SIZE 4096
+
+/* The native architecture */
+#define KEXEC_ARCH KEXEC_ARCH_PPC64
+
+#define MAX_NOTE_BYTES 1024
+
+#ifndef __ASSEMBLY__
+
+typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
+
+extern note_buf_t crash_notes[];
+
+extern void kexec_smp_wait(void);       /* get and clear naca physid, wait for
+                                          master to copy new code to 0 */
+
+#endif /* __ASSEMBLY__ */
+#endif /* _PPC_KEXEC_H */
+
diff --git a/include/asm-ppc64/machdep.h b/include/asm-ppc64/machdep.h
index 553b2ea23bed..9cdad3ed1526 100644
--- a/include/asm-ppc64/machdep.h
+++ b/include/asm-ppc64/machdep.h
@@ -86,6 +86,7 @@ struct machdep_calls {
 
         void            (*init_IRQ)(void);
         int             (*get_irq)(struct pt_regs *);
+        void            (*cpu_irq_down)(void);
 
         /* PCI stuff */
         void            (*pcibios_fixup)(void);
diff --git a/include/asm-ppc64/xics.h b/include/asm-ppc64/xics.h
index fdec5e7a7af6..0c45e14e26ca 100644
--- a/include/asm-ppc64/xics.h
+++ b/include/asm-ppc64/xics.h
@@ -17,6 +17,7 @@
 void xics_init_IRQ(void);
 int xics_get_irq(struct pt_regs *);
 void xics_setup_cpu(void);
+void xics_teardown_cpu(void);
 void xics_cause_IPI(int cpu);
 void xics_request_IPIs(void);
 void xics_migrate_irqs_away(void);