Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_KEXEC_H |
| 2 | #define _ASM_POWERPC_KEXEC_H |
| 3 | |
| 4 | /* |
| 5 | * Maximum page that is mapped directly into kernel memory. |
| 6 | * XXX: Since we copy virt we can use any page we allocate |
| 7 | */ |
| 8 | #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) |
| 9 | |
| 10 | /* |
| 11 | * Maximum address we can reach in physical address mode. |
| 12 | * XXX: I want to allow initrd in highmem. Otherwise set to rmo on LPAR. |
| 13 | */ |
| 14 | #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) |
| 15 | |
| 16 | /* Maximum address we can use for the control code buffer */ |
| 17 | #ifdef __powerpc64__ |
| 18 | #define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) |
| 19 | #else |
| 20 | /* TASK_SIZE, probably left over from use_mm ?? */ |
| 21 | #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE |
| 22 | #endif |
| 23 | |
| 24 | #define KEXEC_CONTROL_CODE_SIZE 4096 |
| 25 | |
| 26 | /* The native architecture */ |
| 27 | #ifdef __powerpc64__ |
| 28 | #define KEXEC_ARCH KEXEC_ARCH_PPC64 |
| 29 | #else |
| 30 | #define KEXEC_ARCH KEXEC_ARCH_PPC |
| 31 | #endif |
| 32 | |
| 33 | #ifndef __ASSEMBLY__ |
| 34 | |
Michael Ellerman | cc53291 | 2005-12-04 18:39:43 +1100 | [diff] [blame^] | 35 | #ifdef CONFIG_KEXEC |
| 36 | |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 37 | #define MAX_NOTE_BYTES 1024 |
| 38 | typedef u32 note_buf_t[MAX_NOTE_BYTES / sizeof(u32)]; |
| 39 | |
| 40 | extern note_buf_t crash_notes[]; |
| 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 | |
Michael Ellerman | e1df870 | 2005-11-03 15:35:45 +1100 | [diff] [blame] | 58 | #endif /* ! __ASSEMBLY__ */ |
| 59 | #endif /* _ASM_POWERPC_KEXEC_H */ |