Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_KEXEC_H |
| 2 | #define _ASM_POWERPC_KEXEC_H |
Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 3 | #ifdef __KERNEL__ |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 4 | |
| 5 | /* |
| 6 | * Maximum page that is mapped directly into kernel memory. |
| 7 | * XXX: Since we copy virt we can use any page we allocate |
| 8 | */ |
| 9 | #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) |
| 10 | |
| 11 | /* |
| 12 | * Maximum address we can reach in physical address mode. |
| 13 | * XXX: I want to allow initrd in highmem. Otherwise set to rmo on LPAR. |
| 14 | */ |
| 15 | #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) |
| 16 | |
| 17 | /* Maximum address we can use for the control code buffer */ |
| 18 | #ifdef __powerpc64__ |
| 19 | #define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) |
| 20 | #else |
| 21 | /* TASK_SIZE, probably left over from use_mm ?? */ |
| 22 | #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE |
| 23 | #endif |
| 24 | |
| 25 | #define KEXEC_CONTROL_CODE_SIZE 4096 |
| 26 | |
| 27 | /* The native architecture */ |
| 28 | #ifdef __powerpc64__ |
| 29 | #define KEXEC_ARCH KEXEC_ARCH_PPC64 |
| 30 | #else |
| 31 | #define KEXEC_ARCH KEXEC_ARCH_PPC |
| 32 | #endif |
| 33 | |
Michael Ellerman | 54c3202 | 2005-12-04 18:39:51 +1100 | [diff] [blame] | 34 | #define HAVE_ARCH_COPY_OLDMEM_PAGE |
| 35 | |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 36 | #ifndef __ASSEMBLY__ |
| 37 | |
Michael Ellerman | cc53291 | 2005-12-04 18:39:43 +1100 | [diff] [blame] | 38 | #ifdef CONFIG_KEXEC |
| 39 | |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 40 | #define MAX_NOTE_BYTES 1024 |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 41 | |
| 42 | #ifdef __powerpc64__ |
| 43 | extern void kexec_smp_wait(void); /* get and clear naca physid, wait for |
| 44 | master to copy new code to 0 */ |
Michael Ellerman | 593e537 | 2005-11-12 00:06:06 +1100 | [diff] [blame] | 45 | extern void __init kexec_setup(void); |
Michael Ellerman | cc53291 | 2005-12-04 18:39:43 +1100 | [diff] [blame] | 46 | extern int crashing_cpu; |
| 47 | extern void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *)); |
| 48 | #endif /* __powerpc64 __ */ |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 49 | |
Michael Ellerman | 3d1229d | 2005-11-14 23:35:00 +1100 | [diff] [blame] | 50 | struct kimage; |
Michael Ellerman | cc53291 | 2005-12-04 18:39:43 +1100 | [diff] [blame] | 51 | struct pt_regs; |
Michael Ellerman | 3d1229d | 2005-11-14 23:35:00 +1100 | [diff] [blame] | 52 | extern void default_machine_kexec(struct kimage *image); |
| 53 | extern int default_machine_kexec_prepare(struct kimage *image); |
Michael Ellerman | cc53291 | 2005-12-04 18:39:43 +1100 | [diff] [blame] | 54 | extern void default_machine_crash_shutdown(struct pt_regs *regs); |
| 55 | |
| 56 | #endif /* !CONFIG_KEXEC */ |
Michael Ellerman | 3d1229d | 2005-11-14 23:35:00 +1100 | [diff] [blame] | 57 | |
akpm@osdl.org | bf20830 | 2006-01-09 20:51:45 -0800 | [diff] [blame] | 58 | /* |
| 59 | * Provide a dummy definition to avoid build failures. Will remain |
| 60 | * empty till crash dump support is enabled. |
| 61 | */ |
| 62 | static inline void crash_setup_regs(struct pt_regs *newregs, |
| 63 | struct pt_regs *oldregs) { } |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 64 | #endif /* ! __ASSEMBLY__ */ |
Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 65 | #endif /* __KERNEL__ */ |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 66 | #endif /* _ASM_POWERPC_KEXEC_H */ |