diff options
Diffstat (limited to 'arch/arm64/include/asm/memory.h')
| -rw-r--r-- | arch/arm64/include/asm/memory.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index ce8614fa376a..9dd08cd339c3 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -114,6 +114,14 @@ #define OVERFLOW_STACK_SIZE SZ_4K /* + * With the minimum frame size of [x29, x30], exactly half the combined + * sizes of the hyp and overflow stacks is the maximum size needed to + * save the unwinded stacktrace; plus an additional entry to delimit the + * end. + */ +#define NVHE_STACKTRACE_SIZE ((OVERFLOW_STACK_SIZE + PAGE_SIZE) / 2 + sizeof(long)) + +/* * Alignment of kernel segments (e.g. .text, .data). * * 4 KB granule: 16 level 3 entries, with contiguous bit @@ -174,7 +182,11 @@ #include <linux/types.h> #include <asm/bug.h> +#if VA_BITS > 48 extern u64 vabits_actual; +#else +#define vabits_actual ((u64)VA_BITS) +#endif extern s64 memstart_addr; /* PHYS_OFFSET - the physical address of the start of memory. */ @@ -351,6 +363,11 @@ static inline void *phys_to_virt(phys_addr_t x) }) void dump_mem_limit(void); + +static inline bool defer_reserve_crashkernel(void) +{ + return IS_ENABLED(CONFIG_ZONE_DMA) || IS_ENABLED(CONFIG_ZONE_DMA32); +} #endif /* !ASSEMBLY */ /* |