microblaze: mm: Use ZONE_DMA instead of ZONE_NORMAL

We should use ZONE_DMA because all address space is dma-able. Signed-off-by: Michal Simek <[email protected]>
maraz · Mar 23, 2012 · 4e2e412 · 4e2e412
1 parent f7f4786
commit 4e2e412
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Showing 2 changed files with 4 additions and 5 deletions.
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
@@ -27,6 +27,9 @@ config SWAP
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
+config ZONE_DMA
+	def_bool y
+
 config RWSEM_XCHGADD_ALGORITHM
 	bool
 

diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
@@ -58,11 +58,7 @@ static void __init paging_init(void)
 	/* Clean every zones */
 	memset(zones_size, 0, sizeof(zones_size));
 
-	/*
-	 * old: we can DMA to/from any address.put all page into ZONE_DMA
-	 * We use only ZONE_NORMAL
-	 */
-	zones_size[ZONE_NORMAL] = max_mapnr;
+	zones_size[ZONE_DMA] = max_mapnr;
 
 	free_area_init(zones_size);
 }