diff options
Diffstat (limited to 'arch/ia64/kernel/pci-swiotlb.c')
-rw-r--r-- | arch/ia64/kernel/pci-swiotlb.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c deleted file mode 100644 index 5e50939aa03e..000000000000 --- a/arch/ia64/kernel/pci-swiotlb.c +++ /dev/null @@ -1,68 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* Glue code to lib/swiotlb.c */ - -#include <linux/pci.h> -#include <linux/gfp.h> -#include <linux/cache.h> -#include <linux/module.h> -#include <linux/dma-mapping.h> - -#include <asm/swiotlb.h> -#include <asm/dma.h> -#include <asm/iommu.h> -#include <asm/machvec.h> - -int swiotlb __read_mostly; -EXPORT_SYMBOL(swiotlb); - -static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp, - unsigned long attrs) -{ - if (dev->coherent_dma_mask != DMA_BIT_MASK(64)) - gfp |= GFP_DMA; - return swiotlb_alloc_coherent(dev, size, dma_handle, gfp); -} - -static void ia64_swiotlb_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_addr, - unsigned long attrs) -{ - swiotlb_free_coherent(dev, size, vaddr, dma_addr); -} - -const struct dma_map_ops swiotlb_dma_ops = { - .alloc = ia64_swiotlb_alloc_coherent, - .free = ia64_swiotlb_free_coherent, - .map_page = swiotlb_map_page, - .unmap_page = swiotlb_unmap_page, - .map_sg = swiotlb_map_sg_attrs, - .unmap_sg = swiotlb_unmap_sg_attrs, - .sync_single_for_cpu = swiotlb_sync_single_for_cpu, - .sync_single_for_device = swiotlb_sync_single_for_device, - .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, - .sync_sg_for_device = swiotlb_sync_sg_for_device, - .dma_supported = swiotlb_dma_supported, - .mapping_error = swiotlb_dma_mapping_error, -}; - -void __init swiotlb_dma_init(void) -{ - dma_ops = &swiotlb_dma_ops; - swiotlb_init(1); -} - -void __init pci_swiotlb_init(void) -{ - if (!iommu_detected) { -#ifdef CONFIG_IA64_GENERIC - swiotlb = 1; - printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n"); - machvec_init("dig"); - swiotlb_init(1); - dma_ops = &swiotlb_dma_ops; -#else - panic("Unable to find Intel IOMMU"); -#endif - } -} |