patch-2.3.13 linux/include/asm-arm/proc-armv/domain.h
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- Lines: 47
- Date:
Mon Aug 2 10:19:52 1999
- Orig file:
v2.3.12/linux/include/asm-arm/proc-armv/domain.h
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.3.12/linux/include/asm-arm/proc-armv/domain.h linux/include/asm-arm/proc-armv/domain.h
@@ -0,0 +1,46 @@
+/*
+ * linux/include/asm-arm/proc-armv/domain.h
+ *
+ * Copyright (C) 1999 Russell King.
+ */
+#ifndef __ASM_PROC_DOMAIN_H
+#define __ASM_PROC_DOMAIN_H
+
+/*
+ * Domain numbers
+ *
+ * DOMAIN_IO - domain 2 includes all IO only
+ * DOMAIN_KERNEL - domain 1 includes all kernel memory only
+ * DOMAIN_USER - domain 0 includes all user memory only
+ */
+#define DOMAIN_USER 0
+#define DOMAIN_KERNEL 1
+#define DOMAIN_TABLE 1
+#define DOMAIN_IO 2
+
+/*
+ * Domain types
+ */
+#define DOMAIN_NOACCESS 0
+#define DOMAIN_CLIENT 1
+#define DOMAIN_MANAGER 3
+
+#define domain_val(dom,type) ((type) << 2*(dom))
+
+#define set_domain(x) \
+ do { \
+ __asm__ __volatile__( \
+ "mcr p15, 0, %0, c3, c0 @ set domain" \
+ : : "r" (x)); \
+ } while (0)
+
+#define modify_domain(dom,type) \
+ do { \
+ unsigned int domain = current->thread.domain; \
+ domain &= ~domain_val(dom, DOMAIN_MANAGER); \
+ domain |= domain_val(dom, type); \
+ current->thread.domain = domain; \
+ set_domain(current->thread.domain); \
+ } while (0)
+
+#endif
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