diff options
Diffstat (limited to 'arch/tile/include/asm/pgtable_64.h')
| -rw-r--r-- | arch/tile/include/asm/pgtable_64.h | 74 |
1 files changed, 35 insertions, 39 deletions
diff --git a/arch/tile/include/asm/pgtable_64.h b/arch/tile/include/asm/pgtable_64.h index fd80328523b..2c8a9cd102d 100644 --- a/arch/tile/include/asm/pgtable_64.h +++ b/arch/tile/include/asm/pgtable_64.h @@ -21,17 +21,19 @@ #define PGDIR_SIZE HV_L1_SPAN #define PGDIR_MASK (~(PGDIR_SIZE-1)) #define PTRS_PER_PGD HV_L0_ENTRIES -#define SIZEOF_PGD (PTRS_PER_PGD * sizeof(pgd_t)) +#define PGD_INDEX(va) HV_L0_INDEX(va) +#define SIZEOF_PGD HV_L0_SIZE /* * The level-1 index is defined by the huge page size. A PMD is composed * of PTRS_PER_PMD pgd_t's and is the middle level of the page table. */ -#define PMD_SHIFT HV_LOG2_PAGE_SIZE_LARGE -#define PMD_SIZE HV_PAGE_SIZE_LARGE +#define PMD_SHIFT HPAGE_SHIFT +#define PMD_SIZE HPAGE_SIZE #define PMD_MASK (~(PMD_SIZE-1)) -#define PTRS_PER_PMD (1 << (PGDIR_SHIFT - PMD_SHIFT)) -#define SIZEOF_PMD (PTRS_PER_PMD * sizeof(pmd_t)) +#define PTRS_PER_PMD _HV_L1_ENTRIES(HPAGE_SHIFT) +#define PMD_INDEX(va) _HV_L1_INDEX(va, HPAGE_SHIFT) +#define SIZEOF_PMD _HV_L1_SIZE(HPAGE_SHIFT) /* * The level-2 index is defined by the difference between the huge @@ -40,25 +42,34 @@ * Note that the hypervisor docs use PTE for what we call pte_t, so * this nomenclature is somewhat confusing. */ -#define PTRS_PER_PTE (1 << (HV_LOG2_PAGE_SIZE_LARGE - HV_LOG2_PAGE_SIZE_SMALL)) -#define SIZEOF_PTE (PTRS_PER_PTE * sizeof(pte_t)) +#define PTRS_PER_PTE _HV_L2_ENTRIES(HPAGE_SHIFT, PAGE_SHIFT) +#define PTE_INDEX(va) _HV_L2_INDEX(va, HPAGE_SHIFT, PAGE_SHIFT) +#define SIZEOF_PTE _HV_L2_SIZE(HPAGE_SHIFT, PAGE_SHIFT) /* - * Align the vmalloc area to an L2 page table, and leave a guard page - * at the beginning and end. The vmalloc code also puts in an internal + * Align the vmalloc area to an L2 page table. Omit guard pages at + * the beginning and end for simplicity (particularly in the per-cpu + * memory allocation code). The vmalloc code puts in an internal * guard page between each allocation. */ -#define _VMALLOC_END HUGE_VMAP_BASE -#define VMALLOC_END (_VMALLOC_END - PAGE_SIZE) -#define VMALLOC_START (_VMALLOC_START + PAGE_SIZE) - -#define HUGE_VMAP_END (HUGE_VMAP_BASE + PGDIR_SIZE) +#define _VMALLOC_END MEM_SV_START +#define VMALLOC_END _VMALLOC_END +#define VMALLOC_START _VMALLOC_START #ifndef __ASSEMBLY__ /* We have no pud since we are a three-level page table. */ #include <asm-generic/pgtable-nopud.h> +/* + * pmds are the same as pgds and ptes, so converting is a no-op. + */ +#define pmd_pte(pmd) (pmd) +#define pmdp_ptep(pmdp) (pmdp) +#define pte_pmd(pte) (pte) + +#define pud_pte(pud) ((pud).pgd) + static inline int pud_none(pud_t pud) { return pud_val(pud) == 0; @@ -69,6 +80,11 @@ static inline int pud_present(pud_t pud) return pud_val(pud) & _PAGE_PRESENT; } +static inline int pud_huge_page(pud_t pud) +{ + return pud_val(pud) & _PAGE_HUGE_PAGE; +} + #define pmd_ERROR(e) \ pr_err("%s:%d: bad pmd 0x%016llx.\n", __FILE__, __LINE__, pmd_val(e)) @@ -85,6 +101,9 @@ static inline int pud_bad(pud_t pud) /* Return the page-table frame number (ptfn) that a pud_t points at. */ #define pud_ptfn(pud) hv_pte_get_ptfn((pud).pgd) +/* Return the page frame number (pfn) that a pud_t points at. */ +#define pud_pfn(pud) pte_pfn(pud_pte(pud)) + /* * A given kernel pud_t maps to a kernel pmd_t table at a specific * virtual address. Since kernel pmd_t tables can be aligned at @@ -98,7 +117,7 @@ static inline int pud_bad(pud_t pud) * A pud_t points to a pmd_t array. Since we can have multiple per * page, we don't have a one-to-one mapping of pud_t's to pages. */ -#define pud_page(pud) pfn_to_page(HV_PTFN_TO_PFN(pud_ptfn(pud))) +#define pud_page(pud) pfn_to_page(PFN_DOWN(HV_PTFN_TO_CPA(pud_ptfn(pud)))) static inline unsigned long pud_index(unsigned long address) { @@ -108,28 +127,6 @@ static inline unsigned long pud_index(unsigned long address) #define pmd_offset(pud, address) \ ((pmd_t *)pud_page_vaddr(*(pud)) + pmd_index(address)) -static inline void __set_pmd(pmd_t *pmdp, pmd_t pmdval) -{ - set_pte(pmdp, pmdval); -} - -/* Create a pmd from a PTFN and pgprot. */ -static inline pmd_t ptfn_pmd(unsigned long ptfn, pgprot_t prot) -{ - return hv_pte_set_ptfn(prot, ptfn); -} - -/* Return the page-table frame number (ptfn) that a pmd_t points at. */ -static inline unsigned long pmd_ptfn(pmd_t pmd) -{ - return hv_pte_get_ptfn(pmd); -} - -static inline void pmd_clear(pmd_t *pmdp) -{ - __pte_clear(pmdp); -} - /* Normalize an address to having the correct high bits set. */ #define pgd_addr_normalize pgd_addr_normalize static inline unsigned long pgd_addr_normalize(unsigned long addr) @@ -141,8 +138,7 @@ static inline unsigned long pgd_addr_normalize(unsigned long addr) /* We don't define any pgds for these addresses. */ static inline int pgd_addr_invalid(unsigned long addr) { - return addr >= MEM_HV_START || - (addr > MEM_LOW_END && addr < MEM_HIGH_START); + return addr >= KERNEL_HIGH_VADDR || addr != pgd_addr_normalize(addr); } /* |