1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _ASM_IA64_KEXEC_H 3*4882a593Smuzhiyun #define _ASM_IA64_KEXEC_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <asm/setup.h> 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun /* Maximum physical address we can use pages from */ 8*4882a593Smuzhiyun #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) 9*4882a593Smuzhiyun /* Maximum address we can reach in physical address mode */ 10*4882a593Smuzhiyun #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) 11*4882a593Smuzhiyun /* Maximum address we can use for the control code buffer */ 12*4882a593Smuzhiyun #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #define KEXEC_CONTROL_PAGE_SIZE (8192 + 8192 + 4096) 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun /* The native architecture */ 17*4882a593Smuzhiyun #define KEXEC_ARCH KEXEC_ARCH_IA_64 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun #define kexec_flush_icache_page(page) do { \ 20*4882a593Smuzhiyun unsigned long page_addr = (unsigned long)page_address(page); \ 21*4882a593Smuzhiyun flush_icache_range(page_addr, page_addr + PAGE_SIZE); \ 22*4882a593Smuzhiyun } while(0) 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun extern struct kimage *ia64_kimage; 25*4882a593Smuzhiyun extern const unsigned int relocate_new_kernel_size; 26*4882a593Smuzhiyun extern void relocate_new_kernel(unsigned long, unsigned long, 27*4882a593Smuzhiyun struct ia64_boot_param *, unsigned long); 28*4882a593Smuzhiyun static inline void crash_setup_regs(struct pt_regs * newregs,struct pt_regs * oldregs)29*4882a593Smuzhiyuncrash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs) 30*4882a593Smuzhiyun { 31*4882a593Smuzhiyun } 32*4882a593Smuzhiyun extern struct resource efi_memmap_res; 33*4882a593Smuzhiyun extern struct resource boot_param_res; 34*4882a593Smuzhiyun extern void kdump_smp_send_stop(void); 35*4882a593Smuzhiyun extern void kdump_smp_send_init(void); 36*4882a593Smuzhiyun extern void kexec_disable_iosapic(void); 37*4882a593Smuzhiyun extern void crash_save_this_cpu(void); 38*4882a593Smuzhiyun struct rsvd_region; 39*4882a593Smuzhiyun extern unsigned long kdump_find_rsvd_region(unsigned long size, 40*4882a593Smuzhiyun struct rsvd_region *rsvd_regions, int n); 41*4882a593Smuzhiyun extern void kdump_cpu_freeze(struct unw_frame_info *info, void *arg); 42*4882a593Smuzhiyun extern int kdump_status[]; 43*4882a593Smuzhiyun extern atomic_t kdump_cpu_freezed; 44*4882a593Smuzhiyun extern atomic_t kdump_in_progress; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun #endif /* _ASM_IA64_KEXEC_H */ 47