diff options
Diffstat (limited to 'arch/arm/include/asm/kexec.h')
| -rw-r--r-- | arch/arm/include/asm/kexec.h | 35 |
1 files changed, 29 insertions, 6 deletions
diff --git a/arch/arm/include/asm/kexec.h b/arch/arm/include/asm/kexec.h index c2b9b4bdec00..a8287e7ab9d4 100644 --- a/arch/arm/include/asm/kexec.h +++ b/arch/arm/include/asm/kexec.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ARM_KEXEC_H #define _ARM_KEXEC_H -#ifdef CONFIG_KEXEC - /* Maximum physical address we can use pages from */ #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) /* Maximum address we can reach in physical address mode */ @@ -19,6 +18,11 @@ #ifndef __ASSEMBLY__ +#define ARCH_HAS_KIMAGE_ARCH +struct kimage_arch { + u32 kernel_r2; +}; + /** * crash_setup_regs() - save registers for the panic kernel * @newregs: registers are saved here @@ -50,11 +54,30 @@ static inline void crash_setup_regs(struct pt_regs *newregs, } } -/* Function pointer to optional machine-specific reinitialization */ -extern void (*kexec_reinit)(void); +static inline unsigned long phys_to_boot_phys(phys_addr_t phys) +{ + return phys_to_idmap(phys); +} +#define phys_to_boot_phys phys_to_boot_phys -#endif /* __ASSEMBLY__ */ +static inline phys_addr_t boot_phys_to_phys(unsigned long entry) +{ + return idmap_to_phys(entry); +} +#define boot_phys_to_phys boot_phys_to_phys -#endif /* CONFIG_KEXEC */ +static inline unsigned long page_to_boot_pfn(struct page *page) +{ + return page_to_pfn(page) + (arch_phys_to_idmap_offset >> PAGE_SHIFT); +} +#define page_to_boot_pfn page_to_boot_pfn + +static inline struct page *boot_pfn_to_page(unsigned long boot_pfn) +{ + return pfn_to_page(boot_pfn - (arch_phys_to_idmap_offset >> PAGE_SHIFT)); +} +#define boot_pfn_to_page boot_pfn_to_page + +#endif /* __ASSEMBLY__ */ #endif /* _ARM_KEXEC_H */ |