Merge branch 'master' into upstream

[linux-2.6] / arch / powerpc / mm / init_64.c

diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index bacb71c89811b27c48f8e5f05b8dbf3dbe27fd3f..9e30f968c184af90dfad58f5ff357edfe81e0ed3 100644 (file)
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -84,54 +84,6 @@
 /* max amount of RAM to use */
 unsigned long __max_memory;
 
-/* info on what we think the IO hole is */
-unsigned long  io_hole_start;
-unsigned long  io_hole_size;
-
-/*
- * Do very early mm setup.
- */
-void __init mm_init_ppc64(void)
-{
-#ifndef CONFIG_PPC_ISERIES
-       unsigned long i;
-#endif
-
-       ppc64_boot_msg(0x100, "MM Init");
-
-       /* This is the story of the IO hole... please, keep seated,
-        * unfortunately, we are out of oxygen masks at the moment.
-        * So we need some rough way to tell where your big IO hole
-        * is. On pmac, it's between 2G and 4G, on POWER3, it's around
-        * that area as well, on POWER4 we don't have one, etc...
-        * We need that as a "hint" when sizing the TCE table on POWER3
-        * So far, the simplest way that seem work well enough for us it
-        * to just assume that the first discontinuity in our physical
-        * RAM layout is the IO hole. That may not be correct in the future
-        * (and isn't on iSeries but then we don't care ;)
-        */
-
-#ifndef CONFIG_PPC_ISERIES
-       for (i = 1; i < lmb.memory.cnt; i++) {
-               unsigned long base, prevbase, prevsize;
-
-               prevbase = lmb.memory.region[i-1].base;
-               prevsize = lmb.memory.region[i-1].size;
-               base = lmb.memory.region[i].base;
-               if (base > (prevbase + prevsize)) {
-                       io_hole_start = prevbase + prevsize;
-                       io_hole_size = base  - (prevbase + prevsize);
-                       break;
-               }
-       }
-#endif /* CONFIG_PPC_ISERIES */
-       if (io_hole_start)
-               printk("IO Hole assumed to be %lx -> %lx\n",
-                      io_hole_start, io_hole_start + io_hole_size - 1);
-
-       ppc64_boot_msg(0x100, "MM Init Done");
-}
-
 void free_initmem(void)
 {
        unsigned long addr;
@@ -210,7 +162,14 @@ static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = {
 };
 #endif /* CONFIG_PPC_64K_PAGES */
 
+#ifdef CONFIG_HUGETLB_PAGE
+/* Hugepages need one extra cache, initialized in hugetlbpage.c.  We
+ * can't put into the tables above, because HPAGE_SHIFT is not compile
+ * time constant. */
+kmem_cache_t *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)+1];
+#else
 kmem_cache_t *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)];
+#endif
 
 void pgtable_cache_init(void)
 {