x86: move x86_64-specific to common code.

This patch moves the bootmem functions, that are largely
x86_64-specific into pci-dma.c. The code goes inside an ifdef.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 68 deletions

diff --git a/arch/x86/kernel/pci-dma_64.c b/arch/x86/kernel/pci-dma_64.c
index 42021300964..6b204cc4289 100644
--- a/arch/x86/kernel/pci-dma_64.c
+++ b/arch/x86/kernel/pci-dma_64.c
@@ -271,74 +271,6 @@ static __init int iommu_setup(char *p)
 }
 early_param("iommu", iommu_setup);
 
-static __initdata void *dma32_bootmem_ptr;
-static unsigned long dma32_bootmem_size __initdata = (128ULL<<20);
-
-static int __init parse_dma32_size_opt(char *p)
-{
-	if (!p)
-		return -EINVAL;
-	dma32_bootmem_size = memparse(p, &p);
-	return 0;
-}
-early_param("dma32_size", parse_dma32_size_opt);
-
-void __init dma32_reserve_bootmem(void)
-{
-	unsigned long size, align;
-	if (end_pfn <= MAX_DMA32_PFN)
-		return;
-
-	align = 64ULL<<20;
-	size = round_up(dma32_bootmem_size, align);
-	dma32_bootmem_ptr = __alloc_bootmem_nopanic(size, align,
-				 __pa(MAX_DMA_ADDRESS));
-	if (dma32_bootmem_ptr)
-		dma32_bootmem_size = size;
-	else
-		dma32_bootmem_size = 0;
-}
-static void __init dma32_free_bootmem(void)
-{
-	int node;
-
-	if (end_pfn <= MAX_DMA32_PFN)
-		return;
-
-	if (!dma32_bootmem_ptr)
-		return;
-
-	for_each_online_node(node)
-		free_bootmem_node(NODE_DATA(node), __pa(dma32_bootmem_ptr),
-				  dma32_bootmem_size);
-
-	dma32_bootmem_ptr = NULL;
-	dma32_bootmem_size = 0;
-}
-
-void __init pci_iommu_alloc(void)
-{
-	/* free the range so iommu could get some range less than 4G */
-	dma32_free_bootmem();
-	/*
-	 * The order of these functions is important for
-	 * fall-back/fail-over reasons
-	 */
-#ifdef CONFIG_GART_IOMMU
-	gart_iommu_hole_init();
-#endif
-
-#ifdef CONFIG_CALGARY_IOMMU
-	detect_calgary();
-#endif
-
-	detect_intel_iommu();
-
-#ifdef CONFIG_SWIOTLB
-	pci_swiotlb_init();
-#endif
-}
-
 #ifdef CONFIG_PCI
 /* Many VIA bridges seem to corrupt data for DAC. Disable it here */