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authorIngo Molnar <mingo@elte.hu>2009-04-02 16:33:42 +0200
committerIngo Molnar <mingo@elte.hu>2009-04-02 16:33:51 +0200
commit83f2f0ed715eb15a8e13c07df479d65bbc10d8d5 (patch)
treee47d7edefa210b328f8cfba43d170fc67d6e0671 /arch/sh/include/asm/mmu_context.h
parent3de46fda4c104deef17ec70f85361f5c6b84ce0e (diff)
parent4fe70410d9a219dabb47328effccae7e7f2a6e26 (diff)
Merge branch 'linus' into x86/urgent
Merge needed to go past commit 7ca43e756 (mm: use debug_kmap_atomic) and fix it. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sh/include/asm/mmu_context.h')
-rw-r--r--arch/sh/include/asm/mmu_context.h15
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/sh/include/asm/mmu_context.h b/arch/sh/include/asm/mmu_context.h
index 5d9157bd474..2a9c55f1a83 100644
--- a/arch/sh/include/asm/mmu_context.h
+++ b/arch/sh/include/asm/mmu_context.h
@@ -19,13 +19,18 @@
* (a) TLB cache version (or round, cycle whatever expression you like)
* (b) ASID (Address Space IDentifier)
*/
+#ifdef CONFIG_CPU_HAS_PTEAEX
+#define MMU_CONTEXT_ASID_MASK 0x0000ffff
+#else
#define MMU_CONTEXT_ASID_MASK 0x000000ff
-#define MMU_CONTEXT_VERSION_MASK 0xffffff00
-#define MMU_CONTEXT_FIRST_VERSION 0x00000100
-#define NO_CONTEXT 0UL
+#endif
-/* ASID is 8-bit value, so it can't be 0x100 */
-#define MMU_NO_ASID 0x100
+#define MMU_CONTEXT_VERSION_MASK (~0UL & ~MMU_CONTEXT_ASID_MASK)
+#define MMU_CONTEXT_FIRST_VERSION (MMU_CONTEXT_ASID_MASK + 1)
+
+/* Impossible ASID value, to differentiate from NO_CONTEXT. */
+#define MMU_NO_ASID MMU_CONTEXT_FIRST_VERSION
+#define NO_CONTEXT 0UL
#define asid_cache(cpu) (cpu_data[cpu].asid_cache)