diff options
Diffstat (limited to 'arch/arm64/include/asm/vmalloc.h')
| -rw-r--r-- | arch/arm64/include/asm/vmalloc.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/vmalloc.h b/arch/arm64/include/asm/vmalloc.h index 2ca708ab9b20..7a22aeea9bb5 100644 --- a/arch/arm64/include/asm/vmalloc.h +++ b/arch/arm64/include/asm/vmalloc.h @@ -1,4 +1,28 @@ #ifndef _ASM_ARM64_VMALLOC_H #define _ASM_ARM64_VMALLOC_H +#include <asm/page.h> + +#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP + +#define arch_vmap_pud_supported arch_vmap_pud_supported +static inline bool arch_vmap_pud_supported(pgprot_t prot) +{ + /* + * Only 4k granule supports level 1 block mappings. + * SW table walks can't handle removal of intermediate entries. + */ + return IS_ENABLED(CONFIG_ARM64_4K_PAGES) && + !IS_ENABLED(CONFIG_PTDUMP_DEBUGFS); +} + +#define arch_vmap_pmd_supported arch_vmap_pmd_supported +static inline bool arch_vmap_pmd_supported(pgprot_t prot) +{ + /* See arch_vmap_pud_supported() */ + return !IS_ENABLED(CONFIG_PTDUMP_DEBUGFS); +} + +#endif + #endif /* _ASM_ARM64_VMALLOC_H */ |