* VMALLOC and SPARSEMEM_VMEMMAP ranges.
*/
#define VMALLOC_START (UL(0xffffffffffffffff) << VA_BITS)
+#ifndef CONFIG_ARM64_4_LEVELS
#define VMALLOC_END (PAGE_OFFSET - UL(0x400000000) - SZ_64K)
+#else
+#define VMALLOC_END (PAGE_OFFSET - UL(0x40000000000) - SZ_64K)
+#endif
#define vmemmap ((struct page *)(VMALLOC_END + SZ_64K))
#ifndef __ASSEMBLY__
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);
extern void __pgd_error(const char *file, int line, unsigned long val);
#define pte_ERROR(pte) __pte_error(__FILE__, __LINE__, pte_val(pte))
-#ifndef CONFIG_ARM64_64K_PAGES
+#ifndef CONFIG_ARM64_2_LEVELS
#define pmd_ERROR(pmd) __pmd_error(__FILE__, __LINE__, pmd_val(pmd))
#endif
+#ifdef CONFIG_ARM64_4_LEVELS
+#define pud_ERROR(pud) __pud_error(__FILE__, __LINE__, pud_val(pud))
+#endif
#define pgd_ERROR(pgd) __pgd_error(__FILE__, __LINE__, pgd_val(pgd))
#ifdef CONFIG_SMP
#define pmd_sect(pmd) ((pmd_val(pmd) & PMD_TYPE_MASK) == \
PMD_TYPE_SECT)
-#ifdef ARM64_64K_PAGES
+#ifdef CONFIG_ARM64_64K_PAGES
#define pud_sect(pud) (0)
#else
#define pud_sect(pud) ((pud_val(pud) & PUD_TYPE_MASK) == \
*/
#define mk_pte(page,prot) pfn_pte(page_to_pfn(page),prot)
-#ifndef CONFIG_ARM64_64K_PAGES
+#ifndef CONFIG_ARM64_2_LEVELS
#define pud_none(pud) (!pud_val(pud))
#define pud_bad(pud) (!(pud_val(pud) & 2))
return __va(pud_val(pud) & PHYS_MASK & (s32)PAGE_MASK);
}
-#endif /* CONFIG_ARM64_64K_PAGES */
+#endif /* CONFIG_ARM64_2_LEVELS */
+
+#ifdef CONFIG_ARM64_4_LEVELS
+
+#define pgd_none(pgd) (!pgd_val(pgd))
+#define pgd_bad(pgd) (!(pgd_val(pgd) & 2))
+#define pgd_present(pgd) (pgd_val(pgd))
+
+static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
+{
+ *pgdp = pgd;
+ dsb(ishst);
+}
+
+static inline void pgd_clear(pgd_t *pgdp)
+{
+ set_pgd(pgdp, __pgd(0));
+}
+
+static inline pud_t *pgd_page_vaddr(pgd_t pgd)
+{
+ return __va(pgd_val(pgd) & PHYS_MASK & (s32)PAGE_MASK);
+}
+
+#endif /* CONFIG_ARM64_4_LEVELS */
/* to find an entry in a page-table-directory */
#define pgd_index(addr) (((addr) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
/* to find an entry in a kernel page-table-directory */
#define pgd_offset_k(addr) pgd_offset(&init_mm, addr)
+#ifdef CONFIG_ARM64_4_LEVELS
+#define pud_index(addr) (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1))
+static inline pud_t *pud_offset(pgd_t *pgd, unsigned long addr)
+{
+ return (pud_t *)pgd_page_vaddr(*pgd) + pud_index(addr);
+}
+#endif
+
/* Find an entry in the second-level page table.. */
-#ifndef CONFIG_ARM64_64K_PAGES
+#ifndef CONFIG_ARM64_2_LEVELS
#define pmd_index(addr) (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1))
static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
{
extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
-#define SWAPPER_DIR_SIZE (3 * PAGE_SIZE)
-#define IDMAP_DIR_SIZE (2 * PAGE_SIZE)
-
/*
* Encode and decode a swap entry:
* bits 0-1: present (must be zero)