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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-mips/mmzone.h
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-mips/mmzone.h')
-rw-r--r--include/asm-mips/mmzone.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/include/asm-mips/mmzone.h b/include/asm-mips/mmzone.h
new file mode 100644
index 00000000000..29ee13be0b2
--- /dev/null
+++ b/include/asm-mips/mmzone.h
@@ -0,0 +1,39 @@
+/*
+ * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
+ * Rewritten for Linux 2.6 by Christoph Hellwig (hch@lst.de) Jan 2004
+ */
+#ifndef _ASM_MMZONE_H_
+#define _ASM_MMZONE_H_
+
+#include <asm/page.h>
+#include <mmzone.h>
+
+#define kvaddr_to_nid(kvaddr) pa_to_nid(__pa(kvaddr))
+#define pfn_to_nid(pfn) pa_to_nid((pfn) << PAGE_SHIFT)
+
+#define pfn_valid(pfn) \
+({ \
+ unsigned long __pfn = (pfn); \
+ int __n = pfn_to_nid(__pfn); \
+ ((__n >= 0) ? (__pfn < NODE_DATA(__n)->node_start_pfn + \
+ NODE_DATA(__n)->node_spanned_pages) : 0);\
+})
+
+#define pfn_to_page(pfn) \
+({ \
+ unsigned long __pfn = (pfn); \
+ pg_data_t *__pg = NODE_DATA(pfn_to_nid(__pfn)); \
+ __pg->node_mem_map + (__pfn - __pg->node_start_pfn); \
+})
+
+#define page_to_pfn(p) \
+({ \
+ struct page *__p = (p); \
+ struct zone *__z = page_zone(__p); \
+ ((__p - __z->zone_mem_map) + __z->zone_start_pfn); \
+})
+
+/* XXX: FIXME -- wli */
+#define kern_addr_valid(addr) (0)
+
+#endif /* _ASM_MMZONE_H_ */