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arm64: kexec: make dtb_mem always enabled 

Currently, dtb_mem is enabled only when CONFIG_KEXEC_FILE is
enabled. This adds ugly ifdefs to c files.

Always enabled dtb_mem, when it is not used, it is NULL.
Change the dtb_mem to phys_addr_t, as it is a physical address.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: James Morse <james.morse@arm.com>
Link: https://lore.kernel.org/r/20210125191923.1060122-2-pasha.tatashin@soleen.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Pavel Tatashin 2021-01-25 14:19:06 -05:00 committed by Will Deacon
parent 19c329f680
commit 117cda9a78
2 changed files with 3 additions and 7 deletions
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4
arch/arm64/include/asm/kexec.h
View File

@ -90,18 +90,18 @@ static inline void crash_prepare_suspend(void) {}
static inline void crash_post_resume(void) {}
#endif
#ifdef CONFIG_KEXEC_FILE
#define ARCH_HAS_KIMAGE_ARCH
struct kimage_arch {
void *dtb;
unsigned long dtb_mem;
phys_addr_t dtb_mem;
/* Core ELF header buffer */
void *elf_headers;
unsigned long elf_headers_mem;
unsigned long elf_headers_sz;
};
#ifdef CONFIG_KEXEC_FILE
extern const struct kexec_file_ops kexec_image_ops;
struct kimage;

6
arch/arm64/kernel/machine_kexec.c
View File

@ -204,11 +204,7 @@ void machine_kexec(struct kimage *kimage)
* In kexec_file case, the kernel starts directly without purgatory.
*/
cpu_soft_restart(reboot_code_buffer_phys, kimage->head, kimage->start,
#ifdef CONFIG_KEXEC_FILE
kimage->arch.dtb_mem);
#else
0);
#endif
kimage->arch.dtb_mem);
BUG(); /* Should never get here. */
}