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author | Michael Ellerman | 2005-11-03 05:35:45 +0100 |
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committer | Michael Ellerman | 2005-11-03 05:35:45 +0100 |
commit | e1df870d546f4d033030615aa3d01c0341c1ef1f (patch) | |
tree | 67621ddb359f503ba4a01f777313740ab479a849 /include/asm-powerpc/kexec.h | |
parent | powerpc: Move plpar_wrappers.h into arch/powerpc/platforms/pseries (diff) | |
download | kernel-qcow2-linux-e1df870d546f4d033030615aa3d01c0341c1ef1f.tar.gz kernel-qcow2-linux-e1df870d546f4d033030615aa3d01c0341c1ef1f.tar.xz kernel-qcow2-linux-e1df870d546f4d033030615aa3d01c0341c1ef1f.zip |
powerpc: Merge asm-ppc/kexec.h and asm-ppc64/kexec.h
Merge include/asm-ppc/kexec.h and include/asm-ppc64/kexec.h.
The only thing that's really changed is that we now allocate crash_notes
properly on PPC32. It's address is exported via sysfs, so it's not correct
for it to be a pointer.
I've also removed some of the "we don't use this" comments, because they're
wrong (or perhaps were referring only to arch code).
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
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 000000000000..062ab9ba68eb --- /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 */ |