Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6

[pandora-kernel.git] / arch / powerpc / mm / 40x_mmu.c

diff --git a/arch/powerpc/mm/40x_mmu.c b/arch/powerpc/mm/40x_mmu.c
index 1dc2fa5..5810967 100644 (file)
--- a/arch/powerpc/mm/40x_mmu.c
+++ b/arch/powerpc/mm/40x_mmu.c
@@ -35,6 +35,7 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/highmem.h>
+#include <linux/memblock.h>
 
 #include <asm/pgalloc.h>
 #include <asm/prom.h>
@@ -47,6 +48,7 @@
 #include <asm/bootx.h>
 #include <asm/machdep.h>
 #include <asm/setup.h>
+
 #include "mmu_decl.h"
 
 extern int __map_without_ltlbs;
@@ -139,8 +141,19 @@ unsigned long __init mmu_mapin_ram(unsigned long top)
         * coverage with normal-sized pages (or other reasons) do not
         * attempt to allocate outside the allowed range.
         */
-
-       __initial_memory_limit_addr = memstart_addr + mapped;
+       memblock_set_current_limit(mapped);
 
        return mapped;
 }
+
+void setup_initial_memory_limit(phys_addr_t first_memblock_base,
+                               phys_addr_t first_memblock_size)
+{
+       /* We don't currently support the first MEMBLOCK not mapping 0
+        * physical on those processors
+        */
+       BUG_ON(first_memblock_base != 0);
+
+       /* 40x can only access 16MB at the moment (see head_40x.S) */
+       memblock_set_current_limit(min_t(u64, first_memblock_size, 0x00800000));
+}