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#ifndef _ARM_KEXEC_H
#define _ARM_KEXEC_H
#ifdef CONFIG_KEXEC
/* Maximum physical address we can use pages from */
#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
/* Maximum address we can reach in physical address mode */
#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
/* Maximum address we can use for the control code buffer */
#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
#define KEXEC_CONTROL_PAGE_SIZE 4096
#define KEXEC_ARCH KEXEC_ARCH_ARM
#define KEXEC_ARM_ATAGS_OFFSET 0x1000
#define KEXEC_ARM_ZIMAGE_OFFSET 0x8000
#ifndef __ASSEMBLY__
/**
* crash_setup_regs() - save registers for the panic kernel
* @newregs: registers are saved here
* @oldregs: registers to be saved (may be %NULL)
*
* Function copies machine registers from @oldregs to @newregs. If @oldregs is
* %NULL then current registers are stored there.
*/
static inline void crash_setup_regs(struct pt_regs *newregs,
struct pt_regs *oldregs)
{
if (oldregs) {
memcpy(newregs, oldregs, sizeof(*newregs));
} else {
__asm__ __volatile__ ("stmia %0, {r0 - r15}"
: : "r" (&newregs->ARM_r0));
__asm__ __volatile__ ("mrs %0, cpsr"
: "=r" (newregs->ARM_cpsr));
}
}
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_KEXEC */
#endif /* _ARM_KEXEC_H */
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