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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-08-10 16:18:35 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2005-08-10 16:18:35 +0100
commit6626a7076d39f0a18156cdd97d4e2cbef91ad701 (patch)
tree13909ea6ae009b9b418cf3302baebe1baaa0dbd4 /include
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')
-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 8bd4c0faf23..478c49b56e1 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);
#define L_PTE_WRITE (1 << 5)
#define L_PTE_EXEC (1 << 6)
#define L_PTE_DIRTY (1 << 7)
+#define L_PTE_SHARED (1 << 10) /* shared between CPUs (v6) */
+#define L_PTE_ASID (1 << 11) /* non-global (use ASID, v6) */
#ifndef __ASSEMBLY__