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 <monstr@monstr.eu>

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index c8d6efb99dbf668b7f283f23624c2f50f632c442..8e9da3d428145abcf43192ac47cf965d61948aef 100644 (file)
--- 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
index 565d193c7ebfd8b307ac3efc8913bda4968dcbcd..a72f42498c25b78c9d7a21fa550d71ff47e24199 100644 (file)
--- 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);
 }