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authorChristoph Lameter <clameter@sgi.com>2007-02-10 01:43:13 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-11 10:51:18 -0800
commit339ba9b15df58199b9783a23af234e947ec9e6ba (patch)
treefe9e4c8eeb26a47b6127890d9f10f7f739c35119 /arch/sh/mm/init.c
parent005928374bf339e0b6783d78da8fd0701631e7ee (diff)
downloadlinux-2.6.34-ux500-339ba9b15df58199b9783a23af234e947ec9e6ba.tar.gz
[PATCH] optional ZONE_DMA: remove ZONE_DMA remains from sh/sh64
sh / sh64: Remove ZONE_DMA remains. Both arches do not need ZONE_DMA Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sh/mm/init.c')
-rw-r--r--arch/sh/mm/init.c17
1 files changed, 1 insertions, 16 deletions
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 29bd37b1488..bf0c263cb6f 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -158,7 +158,6 @@ void __init paging_init(void)
* Setup some defaults for the zone sizes.. these should be safe
* regardless of distcontiguous memory or MMU settings.
*/
- zones_size[ZONE_DMA] = 0 >> PAGE_SHIFT;
zones_size[ZONE_NORMAL] = __MEMORY_SIZE >> PAGE_SHIFT;
#ifdef CONFIG_HIGHMEM
zones_size[ZONE_HIGHMEM] = 0 >> PAGE_SHIFT;
@@ -170,8 +169,6 @@ void __init paging_init(void)
* the zone sizes accordingly, in addition to turning it on.
*/
{
- unsigned long max_dma, low, start_pfn;
-
/* We don't need to map the kernel through the TLB, as
* it is permanatly mapped using P1. So clear the
* entire pgd. */
@@ -179,19 +176,7 @@ void __init paging_init(void)
/* Turn on the MMU */
enable_mmu();
-
- /* Fixup the zone sizes */
- start_pfn = START_PFN;
- max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
- low = MAX_LOW_PFN;
-
- if (low < max_dma) {
- zones_size[ZONE_DMA] = low - start_pfn;
- zones_size[ZONE_NORMAL] = 0;
- } else {
- zones_size[ZONE_DMA] = max_dma - start_pfn;
- zones_size[ZONE_NORMAL] = low - max_dma;
- }
+ zones_size[ZONE_NORMAL] = MAX_LOW_PFN - START_PFN;
}
/* Set an initial value for the MMU.TTB so we don't have to