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authorDavid Woodhouse <dwmw2@infradead.org>2007-01-18 02:34:51 +0300
committerDavid Woodhouse <dwmw2@infradead.org>2007-01-18 02:34:51 +0300
commit9cdf083f981b8d37b3212400a359368661385099 (patch)
treeaa15a6a08ad87e650dea40fb59b3180bef0d345b /include/asm-mips/pgtable-64.h
parente499e01d234a31d59679b7b1e1cf628d917ba49a (diff)
parenta8b3485287731978899ced11f24628c927890e78 (diff)
downloadlinux-9cdf083f981b8d37b3212400a359368661385099.tar.xz
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'include/asm-mips/pgtable-64.h')
-rw-r--r--include/asm-mips/pgtable-64.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/include/asm-mips/pgtable-64.h b/include/asm-mips/pgtable-64.h
index 7e7320300aa3..a5b18710b6a4 100644
--- a/include/asm-mips/pgtable-64.h
+++ b/include/asm-mips/pgtable-64.h
@@ -14,6 +14,7 @@
#include <asm/addrspace.h>
#include <asm/page.h>
#include <asm/cachectl.h>
+#include <asm/fixmap.h>
#include <asm-generic/pgtable-nopud.h>
@@ -103,6 +104,13 @@
#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))
@@ -174,7 +182,12 @@ static inline void pud_clear(pud_t *pudp)
#define __pmd_offset(address) pmd_index(address)
/* to find an entry in a kernel page-table-directory */
+#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))
@@ -199,9 +212,9 @@ static inline pmd_t *pmd_offset(pud_t * pud, unsigned long address)
#define __pte_offset(address) \
(((address) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
#define pte_offset(dir, address) \
- ((pte_t *) (pmd_page_vaddr(*dir)) + __pte_offset(address))
+ ((pte_t *) pmd_page_vaddr(*(dir)) + __pte_offset(address))
#define pte_offset_kernel(dir, address) \
- ((pte_t *) pmd_page_vaddr(*(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) \