[ALSA] dynamic minors (3/6): store device-specific object pointers dynamically

[safe/jmp/linux-2.6] / include / asm-x86_64 / mmzone.h

diff --git a/include/asm-x86_64/mmzone.h b/include/asm-x86_64/mmzone.h
index d95b7c2..69baaa8 100644 (file)
--- a/include/asm-x86_64/mmzone.h
+++ b/include/asm-x86_64/mmzone.h
@@ -6,51 +6,44 @@
 
 #include <linux/config.h>
 
-#ifdef CONFIG_DISCONTIGMEM
+#ifdef CONFIG_NUMA
 
 #define VIRTUAL_BUG_ON(x) 
 
 #include <asm/smp.h>
 
-#define NODEMAPSIZE 0xff
+#define NODEMAPSIZE 0xfff
 
 /* Simple perfect hash to map physical addresses to node numbers */
 extern int memnode_shift; 
 extern u8  memnodemap[NODEMAPSIZE]; 
-extern int maxnode;
 
 extern struct pglist_data *node_data[];
 
 static inline __attribute__((pure)) int phys_to_nid(unsigned long addr) 
 { 
-       int nid; 
+       unsigned nid; 
        VIRTUAL_BUG_ON((addr >> memnode_shift) >= NODEMAPSIZE);
        nid = memnodemap[addr >> memnode_shift]; 
-       VIRTUAL_BUG_ON(nid > maxnode); 
+       VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]); 
        return nid; 
 } 
 
-#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
-
-#define kvaddr_to_nid(kaddr)   phys_to_nid(__pa(kaddr))
 #define NODE_DATA(nid)         (node_data[nid])
 
-#define node_mem_map(nid)      (NODE_DATA(nid)->node_mem_map)
-
-#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)       (NODE_DATA(nid)->node_start_pfn + \
                                 NODE_DATA(nid)->node_spanned_pages)
 
-#define local_mapnr(kvaddr) \
-       ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
+#ifdef CONFIG_DISCONTIGMEM
 
-/* AK: this currently doesn't deal with invalid addresses. We'll see 
-   if the 2.5 kernel doesn't pass them
-   (2.4 used to). */
+#define pfn_to_nid(pfn) phys_to_nid((unsigned long)(pfn) << PAGE_SHIFT)
+#define kvaddr_to_nid(kaddr)   phys_to_nid(__pa(kaddr))
+
+/* Requires pfn_valid(pfn) to be true */
 #define pfn_to_page(pfn) ({ \
        int nid = phys_to_nid(((unsigned long)(pfn)) << PAGE_SHIFT);    \
-       ((pfn) - node_start_pfn(nid)) + node_mem_map(nid);              \
+       ((pfn) - node_start_pfn(nid)) + NODE_DATA(nid)->node_mem_map;   \
 })
 
 #define page_to_pfn(page) \
@@ -58,6 +51,10 @@ static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
 
 #define pfn_valid(pfn) ((pfn) >= num_physpages ? 0 : \
                        ({ u8 nid__ = pfn_to_nid(pfn); \
-                          nid__ != 0xff && (pfn) >= node_start_pfn(nid__) && (pfn) <= node_end_pfn(nid__); }))
+                          nid__ != 0xff && (pfn) >= node_start_pfn(nid__) && (pfn) < node_end_pfn(nid__); }))
+#endif
+
+#define local_mapnr(kvaddr) \
+       ( (__pa(kvaddr) >> PAGE_SHIFT) - node_start_pfn(kvaddr_to_nid(kvaddr)) )
 #endif
 #endif