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authorAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
committerAnton Arapov <anton@redhat.com>2012-04-16 10:05:28 +0200
commitb4b6116a13633898cf868f2f103c96a90c4c20f8 (patch)
tree93d1b7e2cfcdf473d8d4ff3ad141fa864f8491f6 /arch/arm/include/asm/mmu.h
parentedd4be777c953e5faafc80d091d3084b4343f5d3 (diff)
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fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84v3.3.2-1
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/include/asm/mmu.h')
-rw-r--r--arch/arm/include/asm/mmu.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/include/asm/mmu.h b/arch/arm/include/asm/mmu.h
new file mode 100644
index 00000000000..14965658a92
--- /dev/null
+++ b/arch/arm/include/asm/mmu.h
@@ -0,0 +1,37 @@
+#ifndef __ARM_MMU_H
+#define __ARM_MMU_H
+
+#ifdef CONFIG_MMU
+
+typedef struct {
+#ifdef CONFIG_CPU_HAS_ASID
+ unsigned int id;
+ raw_spinlock_t id_lock;
+#endif
+ unsigned int kvm_seq;
+} mm_context_t;
+
+#ifdef CONFIG_CPU_HAS_ASID
+#define ASID(mm) ((mm)->context.id & 255)
+
+/* init_mm.context.id_lock should be initialized. */
+#define INIT_MM_CONTEXT(name) \
+ .context.id_lock = __RAW_SPIN_LOCK_UNLOCKED(name.context.id_lock),
+#else
+#define ASID(mm) (0)
+#endif
+
+#else
+
+/*
+ * From nommu.h:
+ * Copyright (C) 2002, David McCullough <davidm@snapgear.com>
+ * modified for 2.6 by Hyok S. Choi <hyok.choi@samsung.com>
+ */
+typedef struct {
+ unsigned long end_brk;
+} mm_context_t;
+
+#endif
+
+#endif