Release 4.14 arch/ia64/kernel/pci-swiotlb.c
// 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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| FUJITA Tomonori | 45 | 84.91% | 1 | 25.00% |
| Yang Hongyang | 4 | 7.55% | 1 | 25.00% |
| Andrzej Pietrasiewicz | 2 | 3.77% | 1 | 25.00% |
| Krzysztof Kozlowski | 2 | 3.77% | 1 | 25.00% |
| Total | 53 | 100.00% | 4 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrzej Pietrasiewicz | 34 | 94.44% | 1 | 50.00% |
| Krzysztof Kozlowski | 2 | 5.56% | 1 | 50.00% |
| Total | 36 | 100.00% | 2 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| FUJITA Tomonori | 17 | 94.44% | 2 | 66.67% |
| Tony Luck | 1 | 5.56% | 1 | 33.33% |
| Total | 18 | 100.00% | 3 | 100.00% |
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
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Fenghua Yu | 49 | 94.23% | 1 | 50.00% |
| FUJITA Tomonori | 3 | 5.77% | 1 | 50.00% |
| Total | 52 | 100.00% | 2 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Fenghua Yu | 118 | 44.70% | 1 | 7.69% |
| FUJITA Tomonori | 93 | 35.23% | 5 | 38.46% |
| Andrzej Pietrasiewicz | 39 | 14.77% | 1 | 7.69% |
| Krzysztof Kozlowski | 4 | 1.52% | 1 | 7.69% |
| Yang Hongyang | 4 | 1.52% | 1 | 7.69% |
| Tejun Heo | 3 | 1.14% | 1 | 7.69% |
| Greg Kroah-Hartman | 1 | 0.38% | 1 | 7.69% |
| Bart Van Assche | 1 | 0.38% | 1 | 7.69% |
| Tony Luck | 1 | 0.38% | 1 | 7.69% |
| Total | 264 | 100.00% | 13 | 100.00% |
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