xref: /openbmc/linux/arch/ia64/include/asm/kexec.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_IA64_KEXEC_H
3 #define _ASM_IA64_KEXEC_H
4 
5 #include <asm/setup.h>
6 
7 /* Maximum physical address we can use pages from */
8 #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
9 /* Maximum address we can reach in physical address mode */
10 #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
11 /* Maximum address we can use for the control code buffer */
12 #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
13 
14 #define KEXEC_CONTROL_PAGE_SIZE (8192 + 8192 + 4096)
15 
16 /* The native architecture */
17 #define KEXEC_ARCH KEXEC_ARCH_IA_64
18 
19 #define kexec_flush_icache_page(page) do { \
20                 unsigned long page_addr = (unsigned long)page_address(page); \
21                 flush_icache_range(page_addr, page_addr + PAGE_SIZE); \
22         } while(0)
23 
24 extern struct kimage *ia64_kimage;
25 extern const unsigned int relocate_new_kernel_size;
26 extern void relocate_new_kernel(unsigned long, unsigned long,
27 		struct ia64_boot_param *, unsigned long);
28 static inline void
crash_setup_regs(struct pt_regs * newregs,struct pt_regs * oldregs)29 crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs)
30 {
31 }
32 extern struct resource efi_memmap_res;
33 extern struct resource boot_param_res;
34 extern void kdump_smp_send_stop(void);
35 extern void kdump_smp_send_init(void);
36 extern void kexec_disable_iosapic(void);
37 extern void crash_save_this_cpu(void);
38 struct rsvd_region;
39 extern unsigned long kdump_find_rsvd_region(unsigned long size,
40 		struct rsvd_region *rsvd_regions, int n);
41 extern void kdump_cpu_freeze(struct unw_frame_info *info, void *arg);
42 extern int kdump_status[];
43 extern atomic_t kdump_cpu_freezed;
44 extern atomic_t kdump_in_progress;
45 
46 #endif /* _ASM_IA64_KEXEC_H */
47