Add generic sys_ipc wrapper

[safe/jmp/linux-2.6] / arch / sh / include / asm / pgtable_32.h

diff --git a/arch/sh/include/asm/pgtable_32.h b/arch/sh/include/asm/pgtable_32.h
index 4c4429c..e172d69 100644 (file)
--- a/arch/sh/include/asm/pgtable_32.h
+++ b/arch/sh/include/asm/pgtable_32.h
@@ -71,6 +71,8 @@
 #define _PAGE_EXT_KERN_WRITE   0x1000  /* EPR4-bit: Kernel space writable */
 #define _PAGE_EXT_KERN_READ    0x2000  /* EPR5-bit: Kernel space readable */
 
+#define _PAGE_EXT_WIRED                0x4000  /* software: Wire TLB entry */
+
 /* Wrapper for extended mode pgprot twiddling */
 #define _PAGE_EXT(x)           ((unsigned long long)(x) << 32)
 
@@ -108,7 +110,7 @@ static inline unsigned long copy_ptea_attributes(unsigned long x)
 #define _PAGE_CLEAR_FLAGS      (_PAGE_PROTNONE | _PAGE_ACCESSED | _PAGE_FILE)
 #endif
 
-#define _PAGE_FLAGS_HARDWARE_MASK      (PHYS_ADDR_MASK & ~(_PAGE_CLEAR_FLAGS))
+#define _PAGE_FLAGS_HARDWARE_MASK      (phys_addr_mask() & ~(_PAGE_CLEAR_FLAGS))
 
 /* Hardware flags, page size encoding */
 #if !defined(CONFIG_MMU)
@@ -141,12 +143,14 @@ static inline unsigned long copy_ptea_attributes(unsigned long x)
 # elif defined(CONFIG_HUGETLB_PAGE_SIZE_64MB)
 #  define _PAGE_SZHUGE (_PAGE_EXT_ESZ2 | _PAGE_EXT_ESZ3)
 # endif
+# define _PAGE_WIRED   (_PAGE_EXT(_PAGE_EXT_WIRED))
 #else
 # if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
 #  define _PAGE_SZHUGE (_PAGE_SZ1)
 # elif defined(CONFIG_HUGETLB_PAGE_SIZE_1MB)
 #  define _PAGE_SZHUGE (_PAGE_SZ0 | _PAGE_SZ1)
 # endif
+# define _PAGE_WIRED   (0)
 #endif
 
 /*
@@ -344,7 +348,8 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
 #define pte_special(pte)       ((pte).pte_low & _PAGE_SPECIAL)
 
 #ifdef CONFIG_X2TLB
-#define pte_write(pte)         ((pte).pte_high & _PAGE_EXT_USER_WRITE)
+#define pte_write(pte) \
+       ((pte).pte_high & (_PAGE_EXT_USER_WRITE | _PAGE_EXT_KERN_WRITE))
 #else
 #define pte_write(pte)         ((pte).pte_low & _PAGE_RW)
 #endif
@@ -358,7 +363,7 @@ static inline pte_t pte_##fn(pte_t pte) { pte.pte_##h op; return pte; }
  * individually toggled (and user permissions are entirely decoupled from
  * kernel permissions), we attempt to couple them a bit more sanely here.
  */
-PTE_BIT_FUNC(high, wrprotect, &= ~_PAGE_EXT_USER_WRITE);
+PTE_BIT_FUNC(high, wrprotect, &= ~(_PAGE_EXT_USER_WRITE | _PAGE_EXT_KERN_WRITE));
 PTE_BIT_FUNC(high, mkwrite, |= _PAGE_EXT_USER_WRITE | _PAGE_EXT_KERN_WRITE);
 PTE_BIT_FUNC(high, mkhuge, |= _PAGE_SZHUGE);
 #else
@@ -408,13 +413,19 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
 
 /* to find an entry in a page-table-directory. */
 #define pgd_index(address)     (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD-1))
-#define pgd_offset(mm, address)        ((mm)->pgd+pgd_index(address))
+#define pgd_offset(mm, address)        ((mm)->pgd + pgd_index(address))
+#define __pgd_offset(address)  pgd_index(address)
 
 /* to find an entry in a kernel page-table-directory */
 #define pgd_offset_k(address)  pgd_offset(&init_mm, address)
 
+#define __pud_offset(address)  (((address) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
+#define __pmd_offset(address)  (((address) >> PMD_SHIFT) & (PTRS_PER_PMD-1))
+
 /* Find an entry in the third-level page table.. */
 #define pte_index(address)     ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
+#define __pte_offset(address)  pte_index(address)
+
 #define pte_offset_kernel(dir, address) \
        ((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(address))
 #define pte_offset_map(dir, address)           pte_offset_kernel(dir, address)