x86: Only call dma32_reserve_bootmem 64bit !CONFIG_NUMA
64bit NUMA already make enough space under 4G with new early_node_mem.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1265793639-15071-16-git-send-email-yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 75e14e2..1aa966c 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -65,7 +65,7 @@
}
EXPORT_SYMBOL(dma_set_mask);
-#ifdef CONFIG_X86_64
+#if defined(CONFIG_X86_64) && !defined(CONFIG_NUMA)
static __initdata void *dma32_bootmem_ptr;
static unsigned long dma32_bootmem_size __initdata = (128ULL<<20);
@@ -116,14 +116,21 @@
dma32_bootmem_ptr = NULL;
dma32_bootmem_size = 0;
}
+#else
+void __init dma32_reserve_bootmem(void)
+{
+}
+static void __init dma32_free_bootmem(void)
+{
+}
+
#endif
void __init pci_iommu_alloc(void)
{
-#ifdef CONFIG_X86_64
/* free the range so iommu could get some range less than 4G */
dma32_free_bootmem();
-#endif
+
if (pci_swiotlb_detect())
goto out;