diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/mm/init.c | 17 | ||||
| -rw-r--r-- | arch/sh64/Kconfig | 3 | ||||
| -rw-r--r-- | arch/sh64/mm/init.c | 5 |
3 files changed, 2 insertions, 23 deletions
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c index 29bd37b1488e..bf0c263cb6fd 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 diff --git a/arch/sh64/Kconfig b/arch/sh64/Kconfig index 7bc0744b7ab6..e14b533558c8 100644 --- a/arch/sh64/Kconfig +++ b/arch/sh64/Kconfig @@ -36,9 +36,6 @@ config GENERIC_CALIBRATE_DELAY config RWSEM_XCHGADD_ALGORITHM bool -config GENERIC_ISA_DMA - bool - config ARCH_HAS_ILOG2_U32 bool default n diff --git a/arch/sh64/mm/init.c b/arch/sh64/mm/init.c index 83295bd21aa7..5dc08787259c 100644 --- a/arch/sh64/mm/init.c +++ b/arch/sh64/mm/init.c @@ -118,10 +118,7 @@ void __init paging_init(void) mmu_context_cache = MMU_CONTEXT_FIRST_VERSION; - /* - * All memory is good as ZONE_NORMAL (fall-through) and ZONE_DMA. - */ - zones_size[ZONE_DMA] = MAX_LOW_PFN - START_PFN; + zones_size[ZONE_NORMAL] = MAX_LOW_PFN - START_PFN; NODE_DATA(0)->node_mem_map = NULL; free_area_init_node(0, NODE_DATA(0), zones_size, __MEMORY_START >> PAGE_SHIFT, 0); } |