diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2007-04-27 11:25:57 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@hera.kernel.org> | 2007-05-07 02:11:56 +0000 |
| commit | 4d5ade5b29c618e97a8988efb6967cb4dd0e2183 (patch) | |
| tree | 376d71458747e23e7f5171b9914b0d516cad7c7b /include/asm-sh/kexec.h | |
| parent | db62e5bd297d1f325811c5495ad23de36db0fdd4 (diff) | |
sh: kdump support.
This adds support for kexec based crash dumps.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/kexec.h')
| -rw-r--r-- | include/asm-sh/kexec.h | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/include/asm-sh/kexec.h b/include/asm-sh/kexec.h index 9d235af20cd..da36a754860 100644 --- a/include/asm-sh/kexec.h +++ b/include/asm-sh/kexec.h @@ -1,5 +1,8 @@ -#ifndef _SH_KEXEC_H -#define _SH_KEXEC_H +#ifndef __ASM_SH_KEXEC_H +#define __ASM_SH_KEXEC_H + +#include <asm/ptrace.h> +#include <asm/string.h> /* * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. @@ -25,8 +28,37 @@ #define MAX_NOTE_BYTES 1024 -/* Provide a dummy definition to avoid build failures. */ static inline void crash_setup_regs(struct pt_regs *newregs, - struct pt_regs *oldregs) { } + struct pt_regs *oldregs) +{ + if (oldregs) + memcpy(newregs, oldregs, sizeof(*newregs)); + else { + __asm__ __volatile__ ("mov r0, %0" : "=r" (newregs->regs[0])); + __asm__ __volatile__ ("mov r1, %0" : "=r" (newregs->regs[1])); + __asm__ __volatile__ ("mov r2, %0" : "=r" (newregs->regs[2])); + __asm__ __volatile__ ("mov r3, %0" : "=r" (newregs->regs[3])); + __asm__ __volatile__ ("mov r4, %0" : "=r" (newregs->regs[4])); + __asm__ __volatile__ ("mov r5, %0" : "=r" (newregs->regs[5])); + __asm__ __volatile__ ("mov r6, %0" : "=r" (newregs->regs[6])); + __asm__ __volatile__ ("mov r7, %0" : "=r" (newregs->regs[7])); + __asm__ __volatile__ ("mov r8, %0" : "=r" (newregs->regs[8])); + __asm__ __volatile__ ("mov r9, %0" : "=r" (newregs->regs[9])); + __asm__ __volatile__ ("mov r10, %0" : "=r" (newregs->regs[10])); + __asm__ __volatile__ ("mov r11, %0" : "=r" (newregs->regs[11])); + __asm__ __volatile__ ("mov r12, %0" : "=r" (newregs->regs[12])); + __asm__ __volatile__ ("mov r13, %0" : "=r" (newregs->regs[13])); + __asm__ __volatile__ ("mov r14, %0" : "=r" (newregs->regs[14])); + __asm__ __volatile__ ("mov r15, %0" : "=r" (newregs->regs[15])); + + __asm__ __volatile__ ("sts pr, %0" : "=r" (newregs->pr)); + __asm__ __volatile__ ("sts macl, %0" : "=r" (newregs->macl)); + __asm__ __volatile__ ("sts mach, %0" : "=r" (newregs->mach)); + + __asm__ __volatile__ ("stc gbr, %0" : "=r" (newregs->gbr)); + __asm__ __volatile__ ("stc sr, %0" : "=r" (newregs->sr)); -#endif /* _SH_KEXEC_H */ + newregs->pc = (unsigned long)current_text_addr(); + } +} +#endif /* __ASM_SH_KEXEC_H */ |