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-rw-r--r--arch/powerpc/kernel/dma-swiotlb.c6
-rw-r--r--arch/powerpc/kernel/dma.c8
2 files changed, 4 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c
index 5fc335f4d9cd..678811abccfc 100644
--- a/arch/powerpc/kernel/dma-swiotlb.c
+++ b/arch/powerpc/kernel/dma-swiotlb.c
@@ -108,12 +108,8 @@ int __init swiotlb_setup_bus_notifier(void)
void __init swiotlb_detect_4g(void)
{
- if ((memblock_end_of_DRAM() - 1) > 0xffffffff) {
+ if ((memblock_end_of_DRAM() - 1) > 0xffffffff)
ppc_swiotlb_enable = 1;
-#ifdef CONFIG_ZONE_DMA32
- limit_zone_pfn(ZONE_DMA32, (1ULL << 32) >> PAGE_SHIFT);
-#endif
- }
}
static int __init check_swiotlb_enabled(void)
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index e51ff967808c..b1903ebb2e9c 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -50,7 +50,8 @@ static int dma_nommu_dma_supported(struct device *dev, u64 mask)
return 1;
#ifdef CONFIG_FSL_SOC
- /* Freescale gets another chance via ZONE_DMA/ZONE_DMA32, however
+ /*
+ * Freescale gets another chance via ZONE_DMA, however
* that will have to be refined if/when they support iommus
*/
return 1;
@@ -88,13 +89,10 @@ void *__dma_nommu_alloc_coherent(struct device *dev, size_t size,
}
switch (zone) {
+#ifdef CONFIG_ZONE_DMA
case ZONE_DMA:
flag |= GFP_DMA;
break;
-#ifdef CONFIG_ZONE_DMA32
- case ZONE_DMA32:
- flag |= GFP_DMA32;
- break;
#endif
};
#endif /* CONFIG_FSL_SOC */