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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-08-10 11:18:35 -0400
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-08-10 11:18:35 -0400
commit6626a7076d39f0a18156cdd97d4e2cbef91ad701 (patch)
tree13909ea6ae009b9b418cf3302baebe1baaa0dbd4 /include/asm-arm/pgtable.h
parent1b9749e7f15bf2db19f5d201f88401c7517910b7 (diff)
[ARM] Control v6 'global' bit via Linux PTE entries
Unfortunately, we can't use the "user" bit in the page tables to control whether a page table entry is "global" or "asid" specific, since the vector page is mapped as "user" accessible but is not process specific. Therefore, give direct control of the ARMv6 "nG" (not global) bit to the mm layers. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/pgtable.h')
-rw-r--r--include/asm-arm/pgtable.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index 8bd4c0faf230..478c49b56e18 100644
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -230,6 +230,8 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
230#define L_PTE_WRITE (1 << 5) 230#define L_PTE_WRITE (1 << 5)
231#define L_PTE_EXEC (1 << 6) 231#define L_PTE_EXEC (1 << 6)
232#define L_PTE_DIRTY (1 << 7) 232#define L_PTE_DIRTY (1 << 7)
233#define L_PTE_SHARED (1 << 10) /* shared between CPUs (v6) */
234#define L_PTE_ASID (1 << 11) /* non-global (use ASID, v6) */
233 235
234#ifndef __ASSEMBLY__ 236#ifndef __ASSEMBLY__
235 237