diff options
Diffstat (limited to 'arch/arm64/include/asm/pgtable.h')
| -rw-r--r-- | arch/arm64/include/asm/pgtable.h | 34 |
1 files changed, 22 insertions, 12 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 3f5461f7b560..470ba7ae8821 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -21,9 +21,7 @@ * and fixed mappings */ #define VMALLOC_START (MODULES_END) -#define VMALLOC_END (PAGE_OFFSET - PUD_SIZE - VMEMMAP_SIZE - SZ_64K) - -#define vmemmap ((struct page *)VMEMMAP_START - (memstart_addr >> PAGE_SHIFT)) +#define VMALLOC_END (- PUD_SIZE - VMEMMAP_SIZE - SZ_64K) #define FIRST_USER_ADDRESS 0UL @@ -35,6 +33,8 @@ #include <linux/mm_types.h> #include <linux/sched.h> +extern struct page *vmemmap; + extern void __pte_error(const char *file, int line, unsigned long val); extern void __pmd_error(const char *file, int line, unsigned long val); extern void __pud_error(const char *file, int line, unsigned long val); @@ -209,7 +209,7 @@ static inline pmd_t pmd_mkcont(pmd_t pmd) static inline pte_t pte_mkdevmap(pte_t pte) { - return set_pte_bit(pte, __pgprot(PTE_DEVMAP)); + return set_pte_bit(pte, __pgprot(PTE_DEVMAP | PTE_SPECIAL)); } static inline void set_pte(pte_t *ptep, pte_t pte) @@ -220,8 +220,10 @@ static inline void set_pte(pte_t *ptep, pte_t pte) * Only if the new pte is valid and kernel, otherwise TLB maintenance * or update_mmu_cache() have the necessary barriers. */ - if (pte_valid_not_user(pte)) + if (pte_valid_not_user(pte)) { dsb(ishst); + isb(); + } } extern void __sync_icache_dcache(pte_t pteval); @@ -396,7 +398,10 @@ static inline int pmd_protnone(pmd_t pmd) #ifdef CONFIG_TRANSPARENT_HUGEPAGE #define pmd_devmap(pmd) pte_devmap(pmd_pte(pmd)) #endif -#define pmd_mkdevmap(pmd) pte_pmd(pte_mkdevmap(pmd_pte(pmd))) +static inline pmd_t pmd_mkdevmap(pmd_t pmd) +{ + return pte_pmd(set_pte_bit(pmd_pte(pmd), __pgprot(PTE_DEVMAP))); +} #define __pmd_to_phys(pmd) __pte_to_phys(pmd_pte(pmd)) #define __phys_to_pmd_val(phys) __phys_to_pte_val(phys) @@ -447,8 +452,8 @@ extern pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, PMD_TYPE_SECT) #if defined(CONFIG_ARM64_64K_PAGES) || CONFIG_PGTABLE_LEVELS < 3 -#define pud_sect(pud) (0) -#define pud_table(pud) (1) +static inline bool pud_sect(pud_t pud) { return false; } +static inline bool pud_table(pud_t pud) { return true; } #else #define pud_sect(pud) ((pud_val(pud) & PUD_TYPE_MASK) == \ PUD_TYPE_SECT) @@ -481,8 +486,10 @@ static inline void set_pmd(pmd_t *pmdp, pmd_t pmd) WRITE_ONCE(*pmdp, pmd); - if (pmd_valid(pmd)) + if (pmd_valid(pmd)) { dsb(ishst); + isb(); + } } static inline void pmd_clear(pmd_t *pmdp) @@ -540,8 +547,10 @@ static inline void set_pud(pud_t *pudp, pud_t pud) WRITE_ONCE(*pudp, pud); - if (pud_valid(pud)) + if (pud_valid(pud)) { dsb(ishst); + isb(); + } } static inline void pud_clear(pud_t *pudp) @@ -599,6 +608,7 @@ static inline void set_pgd(pgd_t *pgdp, pgd_t pgd) WRITE_ONCE(*pgdp, pgd); dsb(ishst); + isb(); } static inline void pgd_clear(pgd_t *pgdp) @@ -856,8 +866,8 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, #define update_mmu_cache_pmd(vma, address, pmd) do { } while (0) -#define kc_vaddr_to_offset(v) ((v) & ~VA_START) -#define kc_offset_to_vaddr(o) ((o) | VA_START) +#define kc_vaddr_to_offset(v) ((v) & ~PAGE_END) +#define kc_offset_to_vaddr(o) ((o) | PAGE_END) #ifdef CONFIG_ARM64_PA_BITS_52 #define phys_to_ttbr(addr) (((addr) | ((addr) >> 46)) & TTBR_BADDR_MASK_52) |