diff options
Diffstat (limited to 'include/asm-powerpc/kexec.h')
| -rw-r--r-- | include/asm-powerpc/kexec.h | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/include/asm-powerpc/kexec.h b/include/asm-powerpc/kexec.h deleted file mode 100644 index acdcdc66f1b..00000000000 --- a/include/asm-powerpc/kexec.h +++ /dev/null @@ -1,160 +0,0 @@ -#ifndef _ASM_POWERPC_KEXEC_H -#define _ASM_POWERPC_KEXEC_H -#ifdef __KERNEL__ - -/* - * 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__ -#include <linux/cpumask.h> - -typedef void (*crash_shutdown_t)(void); - -#ifdef CONFIG_KEXEC - -#ifdef __powerpc64__ -/* - * This function is responsible for capturing register states if coming - * via panic or invoking dump using sysrq-trigger. - */ -static inline void crash_setup_regs(struct pt_regs *newregs, - struct pt_regs *oldregs) -{ - if (oldregs) - memcpy(newregs, oldregs, sizeof(*newregs)); - else { - /* FIXME Merge this with xmon_save_regs ?? */ - unsigned long tmp1, tmp2; - __asm__ __volatile__ ( - "std 0,0(%2)\n" - "std 1,8(%2)\n" - "std 2,16(%2)\n" - "std 3,24(%2)\n" - "std 4,32(%2)\n" - "std 5,40(%2)\n" - "std 6,48(%2)\n" - "std 7,56(%2)\n" - "std 8,64(%2)\n" - "std 9,72(%2)\n" - "std 10,80(%2)\n" - "std 11,88(%2)\n" - "std 12,96(%2)\n" - "std 13,104(%2)\n" - "std 14,112(%2)\n" - "std 15,120(%2)\n" - "std 16,128(%2)\n" - "std 17,136(%2)\n" - "std 18,144(%2)\n" - "std 19,152(%2)\n" - "std 20,160(%2)\n" - "std 21,168(%2)\n" - "std 22,176(%2)\n" - "std 23,184(%2)\n" - "std 24,192(%2)\n" - "std 25,200(%2)\n" - "std 26,208(%2)\n" - "std 27,216(%2)\n" - "std 28,224(%2)\n" - "std 29,232(%2)\n" - "std 30,240(%2)\n" - "std 31,248(%2)\n" - "mfmsr %0\n" - "std %0, 264(%2)\n" - "mfctr %0\n" - "std %0, 280(%2)\n" - "mflr %0\n" - "std %0, 288(%2)\n" - "bl 1f\n" - "1: mflr %1\n" - "std %1, 256(%2)\n" - "mtlr %0\n" - "mfxer %0\n" - "std %0, 296(%2)\n" - : "=&r" (tmp1), "=&r" (tmp2) - : "b" (newregs) - : "memory"); - } -} -#else -/* - * Provide a dummy definition to avoid build failures. Will remain - * empty till crash dump support is enabled. - */ -static inline void crash_setup_regs(struct pt_regs *newregs, - struct pt_regs *oldregs) { } -#endif /* !__powerpc64 __ */ - -extern void kexec_smp_wait(void); /* get and clear naca physid, wait for - master to copy new code to 0 */ -extern int crashing_cpu; -extern void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *)); -extern cpumask_t cpus_in_sr; -static inline int kexec_sr_activated(int cpu) -{ - return cpu_isset(cpu,cpus_in_sr); -} - -struct kimage; -struct pt_regs; -extern void default_machine_kexec(struct kimage *image); -extern int default_machine_kexec_prepare(struct kimage *image); -extern void default_machine_crash_shutdown(struct pt_regs *regs); -extern int crash_shutdown_register(crash_shutdown_t handler); -extern int crash_shutdown_unregister(crash_shutdown_t handler); - -extern void machine_kexec_simple(struct kimage *image); -extern void crash_kexec_secondary(struct pt_regs *regs); -extern int overlaps_crashkernel(unsigned long start, unsigned long size); -extern void reserve_crashkernel(void); - -#else /* !CONFIG_KEXEC */ -static inline int kexec_sr_activated(int cpu) { return 0; } -static inline void crash_kexec_secondary(struct pt_regs *regs) { } - -static inline int overlaps_crashkernel(unsigned long start, unsigned long size) -{ - return 0; -} - -static inline void reserve_crashkernel(void) { ; } - -static inline int crash_shutdown_register(crash_shutdown_t handler) -{ - return 0; -} - -static inline int crash_shutdown_unregister(crash_shutdown_t handler) -{ - return 0; -} - -#endif /* CONFIG_KEXEC */ -#endif /* ! __ASSEMBLY__ */ -#endif /* __KERNEL__ */ -#endif /* _ASM_POWERPC_KEXEC_H */ |