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authorMikael Starvik <mikael.starvik@axis.com>2005-07-27 11:44:44 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-07-27 16:26:01 -0700
commit51533b615e605d86154ec1b4e585c8ca1b0b15b7 (patch)
tree4a6d7d8494d2017632d83624fb71b36031e0e7e5 /include/asm-cris/arch-v32/page.h
parent5d01e6ce785884a5db5792cd2e5bb36fa82fe23c (diff)
[PATCH] CRIS update: new subarchitecture v32
New CRIS sub architecture named v32. From: Dave Jones <davej@redhat.com> Fix swapped kmalloc args Signed-off-by: Mikael Starvik <starvik@axis.com> Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-cris/arch-v32/page.h')
-rw-r--r--include/asm-cris/arch-v32/page.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/asm-cris/arch-v32/page.h b/include/asm-cris/arch-v32/page.h
new file mode 100644
index 000000000000..77827bc17cca
--- /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 */