This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-cris / arch-v32 / page.h

diff --git a/include/asm-cris/arch-v32/page.h b/include/asm-cris/arch-v32/page.h
new file mode 100644 (file)
index 0000000..77827bc
--- /dev/null
+++ b/include/asm-cris/arch-v32/page.h
@@ -0,0 +1,28 @@
+#ifndef _ASM_CRIS_ARCH_PAGE_H
+#define _ASM_CRIS_ARCH_PAGE_H
+
+#include <linux/config.h>
+
+#ifdef __KERNEL__
+
+#define PAGE_OFFSET KSEG_C     /* kseg_c is mapped to physical ram. */
+
+/*
+ * Macros to convert between physical and virtual addresses. By stripiing a
+ * selected bit it's possible to convert between KSEG_x and 0x40000000 where the
+ * DRAM really resides. DRAM is virtually at 0xc.
+ */
+#ifndef CONFIG_ETRAXFS_SIM
+#define __pa(x) ((unsigned long)(x) & 0x7fffffff)
+#define __va(x) ((void *)((unsigned long)(x) | 0x80000000))
+#else
+#define __pa(x) ((unsigned long)(x) & 0x3fffffff)
+#define __va(x) ((void *)((unsigned long)(x) | 0xc0000000))
+#endif
+
+#define VM_STACK_DEFAULT_FLAGS (VM_READ | VM_WRITE | \
+                                VM_MAYREAD | VM_MAYWRITE)
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_CRIS_ARCH_PAGE_H */