diff options
Diffstat (limited to 'include/asm-powerpc/kexec.h')
| -rw-r--r-- | include/asm-powerpc/kexec.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h new file mode 100644 index 00000000000..062ab9ba68e --- /dev/null +++ b/include/asm-powerpc/kexec.h @@ -0,0 +1,49 @@ +#ifndef _ASM_POWERPC_KEXEC_H +#define _ASM_POWERPC_KEXEC_H + +/* + * Maximum page that is mapped directly into kernel memory. + * 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 */ +#ifdef __powerpc64__ +#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) +#else +/* TASK_SIZE, probably left over from use_mm ?? */ +#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE +#endif + +#define KEXEC_CONTROL_CODE_SIZE 4096 + +/* The native architecture */ +#ifdef __powerpc64__ +#define KEXEC_ARCH KEXEC_ARCH_PPC64 +#else +#define KEXEC_ARCH KEXEC_ARCH_PPC +#endif + +#ifndef __ASSEMBLY__ + +#define MAX_NOTE_BYTES 1024 +typedef u32 note_buf_t[MAX_NOTE_BYTES / sizeof(u32)]; + +extern note_buf_t crash_notes[]; + +#ifdef __powerpc64__ +extern void kexec_smp_wait(void); /* get and clear naca physid, wait for + master to copy new code to 0 */ +#else +struct kimage; +extern void machine_kexec_simple(struct kimage *image); +#endif + +#endif /* ! __ASSEMBLY__ */ +#endif /* _ASM_POWERPC_KEXEC_H */ |