#include <asm/tlbflush.h>
#endif /* __ASSEMBLY__ */
-#include <asm-generic/pgtable-nopud.h>
-
/*
* Entries per page directory level. The PTE level must use a 64b record
* for each page table entry. The PMD and PGD level use a 32b record for
* each entry by assuming that each entry is page aligned.
*/
#define PTE_INDEX_SIZE 9
-#define PMD_INDEX_SIZE 10
-#define PGD_INDEX_SIZE 10
+#define PMD_INDEX_SIZE 7
+#define PUD_INDEX_SIZE 7
+#define PGD_INDEX_SIZE 9
+
+#define PTE_TABLE_SIZE (sizeof(pte_t) << PTE_INDEX_SIZE)
+#define PMD_TABLE_SIZE (sizeof(pmd_t) << PMD_INDEX_SIZE)
+#define PUD_TABLE_SIZE (sizeof(pud_t) << PUD_INDEX_SIZE)
+#define PGD_TABLE_SIZE (sizeof(pgd_t) << PGD_INDEX_SIZE)
#define PTRS_PER_PTE (1 << PTE_INDEX_SIZE)
#define PTRS_PER_PMD (1 << PMD_INDEX_SIZE)
+#define PTRS_PER_PUD (1 << PMD_INDEX_SIZE)
#define PTRS_PER_PGD (1 << PGD_INDEX_SIZE)
/* PMD_SHIFT determines what a second-level page table entry can map */
#define PMD_SIZE (1UL << PMD_SHIFT)
#define PMD_MASK (~(PMD_SIZE-1))
-/* PGDIR_SHIFT determines what a third-level page table entry can map */
-#define PGDIR_SHIFT (PMD_SHIFT + PMD_INDEX_SIZE)
+/* PUD_SHIFT determines what a third-level page table entry can map */
+#define PUD_SHIFT (PMD_SHIFT + PMD_INDEX_SIZE)
+#define PUD_SIZE (1UL << PUD_SHIFT)
+#define PUD_MASK (~(PUD_SIZE-1))
+
+/* PGDIR_SHIFT determines what a fourth-level page table entry can map */
+#define PGDIR_SHIFT (PUD_SHIFT + PUD_INDEX_SIZE)
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE-1))
/*
* Size of EA range mapped by our pagetables.
*/
-#define EADDR_SIZE (PTE_INDEX_SIZE + PMD_INDEX_SIZE + \
- PGD_INDEX_SIZE + PAGE_SHIFT)
-#define EADDR_MASK ((1UL << EADDR_SIZE) - 1)
+#define PGTABLE_EADDR_SIZE (PTE_INDEX_SIZE + PMD_INDEX_SIZE + \
+ PUD_INDEX_SIZE + PGD_INDEX_SIZE + PAGE_SHIFT)
+#define PGTABLE_RANGE (1UL << PGTABLE_EADDR_SIZE)
+
+#if TASK_SIZE_USER64 > PGTABLE_RANGE
+#error TASK_SIZE_USER64 exceeds pagetable range
+#endif
+
+#if TASK_SIZE_USER64 > (1UL << (USER_ESID_BITS + SID_SHIFT))
+#error TASK_SIZE_USER64 exceeds user VSID range
+#endif
/*
* Define the address range of the vmalloc VM area.
*/
#define VMALLOC_START (0xD000000000000000ul)
-#define VMALLOC_SIZE (0x10000000000UL)
+#define VMALLOC_SIZE (0x80000000000UL)
#define VMALLOC_END (VMALLOC_START + VMALLOC_SIZE)
/*
#ifndef __ASSEMBLY__
int hash_huge_page(struct mm_struct *mm, unsigned long access,
unsigned long ea, unsigned long vsid, int local);
-
-void hugetlb_mm_free_pgd(struct mm_struct *mm);
#endif /* __ASSEMBLY__ */
#define HAVE_ARCH_UNMAPPED_AREA
#else
#define hash_huge_page(mm,a,ea,vsid,local) -1
-#define hugetlb_mm_free_pgd(mm) do {} while (0)
#endif
#define pte_pfn(x) ((unsigned long)((pte_val(x) >> PTE_SHIFT)))
#define pte_page(x) pfn_to_page(pte_pfn(x))
-#define pmd_set(pmdp, ptep) \
- (pmd_val(*(pmdp)) = __ba_to_bpn(ptep))
+#define pmd_set(pmdp, ptep) ({BUG_ON((u64)ptep < KERNELBASE); pmd_val(*(pmdp)) = (unsigned long)(ptep);})
#define pmd_none(pmd) (!pmd_val(pmd))
#define pmd_bad(pmd) (pmd_val(pmd) == 0)
#define pmd_present(pmd) (pmd_val(pmd) != 0)
#define pmd_clear(pmdp) (pmd_val(*(pmdp)) = 0)
-#define pmd_page_kernel(pmd) (__bpn_to_ba(pmd_val(pmd)))
+#define pmd_page_kernel(pmd) (pmd_val(pmd))
#define pmd_page(pmd) virt_to_page(pmd_page_kernel(pmd))
-#define pud_set(pudp, pmdp) (pud_val(*(pudp)) = (__ba_to_bpn(pmdp)))
+#define pud_set(pudp, pmdp) (pud_val(*(pudp)) = (unsigned long)(pmdp))
#define pud_none(pud) (!pud_val(pud))
-#define pud_bad(pud) ((pud_val(pud)) == 0UL)
-#define pud_present(pud) (pud_val(pud) != 0UL)
-#define pud_clear(pudp) (pud_val(*(pudp)) = 0UL)
-#define pud_page(pud) (__bpn_to_ba(pud_val(pud)))
+#define pud_bad(pud) ((pud_val(pud)) == 0)
+#define pud_present(pud) (pud_val(pud) != 0)
+#define pud_clear(pudp) (pud_val(*(pudp)) = 0)
+#define pud_page(pud) (pud_val(pud))
+
+#define pgd_set(pgdp, pudp) ({pgd_val(*(pgdp)) = (unsigned long)(pudp);})
+#define pgd_none(pgd) (!pgd_val(pgd))
+#define pgd_bad(pgd) (pgd_val(pgd) == 0)
+#define pgd_present(pgd) (pgd_val(pgd) != 0)
+#define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0)
+#define pgd_page(pgd) (pgd_val(pgd))
/*
* Find an entry in a page-table-directory. We combine the address region
* (the high order N bits) and the pgd portion of the address.
*/
/* to avoid overflow in free_pgtables we don't use PTRS_PER_PGD here */
-#define pgd_index(address) (((address) >> (PGDIR_SHIFT)) & 0x7ff)
+#define pgd_index(address) (((address) >> (PGDIR_SHIFT)) & 0x1ff)
#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
-/* Find an entry in the second-level page table.. */
+#define pud_offset(pgdp, addr) \
+ (((pud_t *) pgd_page(*(pgdp))) + (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1)))
+
#define pmd_offset(pudp,addr) \
- ((pmd_t *) pud_page(*(pudp)) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
+ (((pmd_t *) pud_page(*(pudp))) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
-/* Find an entry in the third-level page table.. */
#define pte_offset_kernel(dir,addr) \
- ((pte_t *) pmd_page_kernel(*(dir)) \
- + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
+ (((pte_t *) pmd_page_kernel(*(dir))) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr))
#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir), (addr))
#define pte_same(A,B) (((pte_val(A) ^ pte_val(B)) & ~_PAGE_HPTEFLAGS) == 0)
#define pmd_ERROR(e) \
- printk("%s:%d: bad pmd %08x.\n", __FILE__, __LINE__, pmd_val(e))
+ printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
+#define pud_ERROR(e) \
+ printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pud_val(e))
#define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %08x.\n", __FILE__, __LINE__, pgd_val(e))
+ printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
extern pgd_t swapper_pg_dir[];
extern void paging_init(void);
-/*
- * Because the huge pgtables are only 2 level, they can take
- * at most around 4M, much less than one hugepage which the
- * process is presumably entitled to use. So we don't bother
- * freeing up the pagetables on unmap, and wait until
- * destroy_context() to clean up the lot.
- */
+#ifdef CONFIG_HUGETLB_PAGE
#define hugetlb_free_pgd_range(tlb, addr, end, floor, ceiling) \
- do { } while (0)
+ free_pgd_range(tlb, addr, end, floor, ceiling)
+#endif
/*
* This gets called at the end of handling a page fault, when
projects / linux-2.6 / blobdiff