diff options
Diffstat (limited to 'arch/arm64/include/asm/memory.h')
| -rw-r--r-- | arch/arm64/include/asm/memory.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index 03e9b112bd94..556cb2d62b5b 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -308,13 +308,15 @@ static inline void *phys_to_virt(phys_addr_t x) #else #define page_to_virt(x) ({ \ __typeof__(x) __page = x; \ - u64 __addr = (u64)__page << VMEMMAP_SHIFT; \ + u64 __idx = ((u64)__page - VMEMMAP_START) / sizeof(struct page);\ + u64 __addr = PAGE_OFFSET + (__idx * PAGE_SIZE); \ (void *)__tag_set((const void *)__addr, page_kasan_tag(__page));\ }) #define virt_to_page(x) ({ \ - u64 __addr = __tag_reset((u64)(x)) & PAGE_MASK; \ - (struct page *)((s64)__addr >> VMEMMAP_SHIFT); \ + u64 __idx = (__tag_reset((u64)x) - PAGE_OFFSET) / PAGE_SIZE; \ + u64 __addr = VMEMMAP_START + (__idx * sizeof(struct page)); \ + (struct page *)__addr; \ }) #endif /* !CONFIG_SPARSEMEM_VMEMMAP || CONFIG_DEBUG_VIRTUAL */ |