Linux-2.6.12-rc2v2.6.12-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!

1 files changed, 80 insertions, 0 deletions

diff --git a/include/asm-m32r/mmzone.h b/include/asm-m32r/mmzone.h
new file mode 100644
index 000000000000..ebf0228fec42
--- /dev/null
+++ b/include/asm-m32r/mmzone.h
@@ -0,0 +1,80 @@
+/*
+ * Written by Pat Gaughen (gone@us.ibm.com) Mar 2002
+ *
+ */
+
+#ifndef _ASM_MMZONE_H_
+#define _ASM_MMZONE_H_
+
+#include <asm/smp.h>
+
+#ifdef CONFIG_DISCONTIGMEM
+
+extern struct pglist_data *node_data[];
+#define NODE_DATA(nid)          (node_data[nid])
+
+#define node_localnr(pfn, nid)  ((pfn) - NODE_DATA(nid)->node_start_pfn)
+#define node_mem_map(nid)       (NODE_DATA(nid)->node_mem_map)
+#define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
+#define node_end_pfn(nid)                                               \
+({                                                                      \
+        pg_data_t *__pgdat = NODE_DATA(nid);                            \
+        __pgdat->node_start_pfn + __pgdat->node_spanned_pages - 1;      \
+})
+
+#define local_mapnr(kvaddr)                                             \
+({                                                                      \
+        unsigned long __pfn = __pa(kvaddr) >> PAGE_SHIFT;               \
+        (__pfn - node_start_pfn(pfn_to_nid(__pfn)));                    \
+})
+
+#define pfn_to_page(pfn)                                                \
+({                                                                      \
+        unsigned long __pfn = pfn;                                      \
+        int __node  = pfn_to_nid(__pfn);                                \
+        &node_mem_map(__node)[node_localnr(__pfn,__node)];              \
+})
+
+#define page_to_pfn(pg)                                                 \
+({                                                                      \
+        struct page *__page = pg;                                       \
+        struct zone *__zone = page_zone(__page);                        \
+        (unsigned long)(__page - __zone->zone_mem_map)                  \
+                + __zone->zone_start_pfn;                               \
+})
+#define pmd_page(pmd)           (pfn_to_page(pmd_val(pmd) >> PAGE_SHIFT))
+/*
+ * pfn_valid should be made as fast as possible, and the current definition
+ * is valid for machines that are NUMA, but still contiguous, which is what
+ * is currently supported. A more generalised, but slower definition would
+ * be something like this - mbligh:
+ * ( pfn_to_pgdat(pfn) && ((pfn) < node_end_pfn(pfn_to_nid(pfn))) )
+ */
+#if 1   /* M32R_FIXME */
+#define pfn_valid(pfn)  (1)
+#else
+#define pfn_valid(pfn)  ((pfn) < num_physpages)
+#endif
+
+/*
+ * generic node memory support, the following assumptions apply:
+ */
+
+static __inline__ int pfn_to_nid(unsigned long pfn)
+{
+        int node;
+
+        for (node = 0 ; node < MAX_NUMNODES ; node++)
+                if (pfn >= node_start_pfn(node) && pfn <= node_end_pfn(node))
+                        break;
+
+        return node;
+}
+
+static __inline__ struct pglist_data *pfn_to_pgdat(unsigned long pfn)
+{
+        return(NODE_DATA(pfn_to_nid(pfn)));
+}
+
+#endif /* CONFIG_DISCONTIGMEM */
+#endif /* _ASM_MMZONE_H_ */