fedora core 6 1.2949 + vserver 2.2.0

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

diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 81cfb0c..d12a87e 100644 (file)
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -22,7 +22,6 @@
 
 #undef DEBUG
 
-#include <linux/config.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -41,6 +40,7 @@
 #include <linux/idr.h>
 #include <linux/nodemask.h>
 #include <linux/module.h>
+#include <linux/poison.h>
 
 #include <asm/pgalloc.h>
 #include <asm/page.h>
@@ -84,63 +84,15 @@
 /* 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;
 
        addr = (unsigned long)__init_begin;
        for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
-               memset((void *)addr, 0xcc, PAGE_SIZE);
+               memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
                ClearPageReserved(virt_to_page(addr));
-               set_page_count(virt_to_page(addr), 1);
+               init_page_count(virt_to_page(addr));
                free_page(addr);
                totalram_pages++;
        }
@@ -155,7 +107,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
                printk ("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
        for (; start < end; start += PAGE_SIZE) {
                ClearPageReserved(virt_to_page(start));
-               set_page_count(virt_to_page(start), 1);
+               init_page_count(virt_to_page(start));
                free_page(start);
                totalram_pages++;
        }
@@ -178,7 +130,7 @@ static int __init setup_kcore(void)
                /* GFP_ATOMIC to avoid might_sleep warnings during boot */
                kcore_mem = kmalloc(sizeof(struct kcore_list), GFP_ATOMIC);
                if (!kcore_mem)
-                       panic("mem_init: kmalloc failed\n");
+                       panic("%s: kmalloc failed\n", __FUNCTION__);
 
                kclist_add(kcore_mem, __va(base), size);
        }
@@ -189,7 +141,7 @@ static int __init setup_kcore(void)
 }
 module_init(setup_kcore);
 
-static void zero_ctor(void *addr, kmem_cache_t *cache, unsigned long flags)
+static void zero_ctor(void *addr, struct kmem_cache *cache, unsigned long flags)
 {
        memset(addr, 0, kmem_cache_size(cache));
 }
@@ -210,7 +162,14 @@ static const char *pgtable_cache_name[ARRAY_SIZE(pgtable_cache_size)] = {
 };
 #endif /* CONFIG_PPC_64K_PAGES */
 
-kmem_cache_t *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)];
+#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. */
+struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)+1];
+#else
+struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)];
+#endif
 
 void pgtable_cache_init(void)
 {