Merge branch 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm

[cascardo/linux.git] / arch / arm / mm / init.c

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index ca907f8..3e8f106 100644 (file)
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -209,6 +209,7 @@ EXPORT_SYMBOL(arm_dma_zone_size);
  * so a successful GFP_DMA allocation will always satisfy this.
  */
 phys_addr_t arm_dma_limit;
+unsigned long arm_dma_pfn_limit;
 
 static void __init arm_adjust_dma_zone(unsigned long *size, unsigned long *hole,
        unsigned long dma_size)
@@ -231,6 +232,7 @@ void __init setup_dma_zone(const struct machine_desc *mdesc)
                arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1;
        } else
                arm_dma_limit = 0xffffffff;
+       arm_dma_pfn_limit = arm_dma_limit >> PAGE_SHIFT;
 #endif
 }
 
@@ -418,12 +420,10 @@ void __init bootmem_init(void)
         * This doesn't seem to be used by the Linux memory manager any
         * more, but is used by ll_rw_block.  If we can get rid of it, we
         * also get rid of some of the stuff above as well.
-        *
-        * Note: max_low_pfn and max_pfn reflect the number of _pages_ in
-        * the system, not the maximum PFN.
         */
-       max_low_pfn = max_low - PHYS_PFN_OFFSET;
-       max_pfn = max_high - PHYS_PFN_OFFSET;
+       min_low_pfn = min;
+       max_low_pfn = max_low;
+       max_pfn = max_high;
 }
 
 /*
@@ -529,7 +529,7 @@ static inline void free_area_high(unsigned long pfn, unsigned long end)
 static void __init free_highpages(void)
 {
 #ifdef CONFIG_HIGHMEM
-       unsigned long max_low = max_low_pfn + PHYS_PFN_OFFSET;
+       unsigned long max_low = max_low_pfn;
        struct memblock_region *mem, *res;
 
        /* set highmem page free */