#ifndef _ASM_PGTABLE_64_H
#define _ASM_PGTABLE_64_H
-#include <linux/config.h>
#include <linux/linkage.h>
#include <asm/addrspace.h>
#include <asm/page.h>
#include <asm/cachectl.h>
+#include <asm/fixmap.h>
#include <asm-generic/pgtable-nopud.h>
#define PTRS_PER_PMD ((PAGE_SIZE << PMD_ORDER) / sizeof(pmd_t))
#define PTRS_PER_PTE ((PAGE_SIZE << PTE_ORDER) / sizeof(pte_t))
+#if PGDIR_SIZE >= TASK_SIZE
+#define USER_PTRS_PER_PGD (1)
+#else
#define USER_PTRS_PER_PGD (TASK_SIZE / PGDIR_SIZE)
-#define FIRST_USER_ADDRESS 0
+#endif
+#define FIRST_USER_ADDRESS 0UL
#define VMALLOC_START MAP_BASE
#define VMALLOC_END \
(VMALLOC_START + PTRS_PER_PGD * PTRS_PER_PMD * PTRS_PER_PTE * PAGE_SIZE)
+#if defined(CONFIG_MODULES) && !defined(CONFIG_BUILD_ELF64) && \
+ VMALLOC_START != CKSSEG
+/* Load modules into 32bit-compatible segment. */
+#define MODULE_START CKSSEG
+#define MODULE_END (FIXADDR_START-2*PAGE_SIZE)
+extern pgd_t module_pg_dir[PTRS_PER_PGD];
+#endif
#define pte_ERROR(e) \
printk("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
#define __pmd_offset(address) pmd_index(address)
/* to find an entry in a kernel page-table-directory */
-#define pgd_offset_k(address) pgd_offset(&init_mm, 0)
+#ifdef MODULE_START
+#define pgd_offset_k(address) \
+ ((address) >= MODULE_START ? module_pg_dir : pgd_offset(&init_mm, 0UL))
+#else
+#define pgd_offset_k(address) pgd_offset(&init_mm, 0UL)
+#endif
#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
#define pmd_index(address) (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
/* to find an entry in a page-table-directory */
#define pgd_offset(mm,addr) ((mm)->pgd + pgd_index(addr))
-static inline unsigned long pud_page(pud_t pud)
+static inline unsigned long pud_page_vaddr(pud_t pud)
{
return pud_val(pud);
}
+#define pud_phys(pud) (pud_val(pud) - PAGE_OFFSET)
+#define pud_page(pud) (pfn_to_page(pud_phys(pud) >> PAGE_SHIFT))
/* Find an entry in the second-level page table.. */
static inline pmd_t *pmd_offset(pud_t * pud, unsigned long address)
{
- return (pmd_t *) pud_page(*pud) + pmd_index(address);
+ return (pmd_t *) pud_page_vaddr(*pud) + pmd_index(address);
}
/* Find an entry in the third-level page table.. */
#define __pte_offset(address) \
(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset(dir, address) \
- ((pte_t *) (pmd_page_kernel(*dir)) + __pte_offset(address))
+ ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
#define pte_offset_kernel(dir, address) \
- ((pte_t *) pmd_page_kernel(*(dir)) + __pte_offset(address))
+ ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + __pte_offset(address))
#define pte_offset_map_nested(dir, address) \