search for: dma_map_page_attr

.../drivers/gpu/drm/nouveau/nouveau_dmem.c index b9ced2e61667..a5d9b537cbaf 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dmem.c +++ b/drivers/gpu/drm/nouveau/nouveau_dmem.c @@ -186,9 +186,8 @@ nouveau_dmem_fault_alloc_and_copy(struct vm_area_struct *vma, } fault->dma[fault->npages] = - dma_map_page_attrs(dev, dpage, 0, PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL, - DMA_ATTR_SKIP_CPU_SYNC); + dma_map_page(dev, dpage, 0, PAGE_SIZE, + PCI_DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, fault->dma[fault->npages])) { dst_pfns[i] = MIGRATE_PFN_ERROR; __free_page(dpage); @@...

...supported(struct device *dev, u64 mask); int dma_set_mask(struct device *dev, u64 mask); int dma_set_coherent_mask(struct device *dev, u64 mask); u64 dma_get_required_mask(struct device *dev); +size_t dma_max_mapping_size(struct device *dev); #else /* CONFIG_HAS_DMA */ static inline dma_addr_t dma_map_page_attrs(struct device *dev, struct page *page, size_t offset, size_t size, @@ -561,6 +565,10 @@ static inline u64 dma_get_required_mask(struct device *dev) { return 0; } +static inline size_t dma_max_mapping_size(struct device *dev) +{ + return 0; +} #endif /* CONFIG_HAS_DMA */ static inline dm...

...> - continue; > - > - spage = migrate_pfn_to_page(src_pfns[i]); > - if (!spage || !(src_pfns[i] & MIGRATE_PFN_MIGRATE)) { > - dst_pfns[i] = MIGRATE_PFN_ERROR; > - __free_page(dpage); > - continue; > - } > - > - fault->dma[fault->npages] = > - dma_map_page_attrs(dev, dpage, 0, PAGE_SIZE, > - PCI_DMA_BIDIRECTIONAL, > - DMA_ATTR_SKIP_CPU_SYNC); > - if (dma_mapping_error(dev, fault->dma[fault->npages])) { > - dst_pfns[i] = MIGRATE_PFN_ERROR; > - __free_page(dpage); > - continue; > - } > - > - ret = copy...

...]); - if (!dpage || dst_pfns[i] == MIGRATE_PFN_ERROR) - continue; - - spage = migrate_pfn_to_page(src_pfns[i]); - if (!spage || !(src_pfns[i] & MIGRATE_PFN_MIGRATE)) { - dst_pfns[i] = MIGRATE_PFN_ERROR; - __free_page(dpage); - continue; - } - - fault->dma[fault->npages] = - dma_map_page_attrs(dev, dpage, 0, PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL, - DMA_ATTR_SKIP_CPU_SYNC); - if (dma_mapping_error(dev, fault->dma[fault->npages])) { - dst_pfns[i] = MIGRATE_PFN_ERROR; - __free_page(dpage); - continue; - } + *dma_addr = dma_map_page(dev, dpage, 0, PAGE_SIZE, DMA_BID...

...]); - if (!dpage || dst_pfns[i] == MIGRATE_PFN_ERROR) - continue; - - spage = migrate_pfn_to_page(src_pfns[i]); - if (!spage || !(src_pfns[i] & MIGRATE_PFN_MIGRATE)) { - dst_pfns[i] = MIGRATE_PFN_ERROR; - __free_page(dpage); - continue; - } - - fault->dma[fault->npages] = - dma_map_page_attrs(dev, dpage, 0, PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL, - DMA_ATTR_SKIP_CPU_SYNC); - if (dma_mapping_error(dev, fault->dma[fault->npages])) { - dst_pfns[i] = MIGRATE_PFN_ERROR; - __free_page(dpage); - continue; - } - - ret = copy(drm, 1, NOUVEAU_APER_HOST, - fault->dm...

...> - continue; > - > - spage = migrate_pfn_to_page(src_pfns[i]); > - if (!spage || !(src_pfns[i] & MIGRATE_PFN_MIGRATE)) { > - dst_pfns[i] = MIGRATE_PFN_ERROR; > - __free_page(dpage); > - continue; > - } > - > - fault->dma[fault->npages] = > - dma_map_page_attrs(dev, dpage, 0, PAGE_SIZE, > - PCI_DMA_BIDIRECTIONAL, > - DMA_ATTR_SKIP_CPU_SYNC); > - if (dma_mapping_error(dev, fault->dma[fault->npages])) { > - dst_pfns[i] = MIGRATE_PFN_ERROR; > - __free_page(dpage); > - continue; > - } > + *dma_addr = dma_ma...

...!dpage || dst_pfns[i] == MIGRATE_PFN_ERROR) - continue; - - spage = migrate_pfn_to_page(src_pfns[i]); - if (!spage || !(src_pfns[i] & MIGRATE_PFN_MIGRATE)) { - nouveau_dmem_page_free_locked(drm, dpage); - dst_pfns[i] = 0; - continue; - } - - migrate->dma[migrate->dma_nr] = - dma_map_page_attrs(dev, spage, 0, PAGE_SIZE, - PCI_DMA_BIDIRECTIONAL, - DMA_ATTR_SKIP_CPU_SYNC); - if (dma_mapping_error(dev, migrate->dma[migrate->dma_nr])) { - nouveau_dmem_page_free_locked(drm, dpage); - dst_pfns[i] = 0; - continue; - } - - ret = copy(drm, 1, NOUVEAU_APER_VRAM, - n...

Hi, here is the next version of this patch-set. Previous versions can be found here: V1: https://lore.kernel.org/lkml/20190110134433.15672-1-joro at 8bytes.org/ V2: https://lore.kernel.org/lkml/20190115132257.6426-1-joro at 8bytes.org/ V3: https://lore.kernel.org/lkml/20190123163049.24863-1-joro at 8bytes.org/ V4: https://lore.kernel.org/lkml/20190129084342.26030-1-joro at 8bytes.org/

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 5 files changed, 281 insertions(+), 607 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 4 files changed, 285 insertions(+), 602 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git

## About DMA APIs Now, virtio may can not work with DMA APIs when virtio features do not have VIRTIO_F_ACCESS_PLATFORM. 1. I tried to let DMA APIs return phy address by virtio-device. But DMA APIs just work with the "real" devices. 2. I tried to let xsk support callballs to get phy address from virtio-net driver as the dma address. But the maintainers of xsk may want to use

Hi Jérôme, Ben and Jason, below is a series against the hmm tree which starts revamping the migrate_vma functionality. The prime idea is to export three slightly lower level functions and thus avoid the need for migrate_vma_ops callbacks. Diffstat: 7 files changed, 282 insertions(+), 614 deletions(-) A git tree is also available at: git://git.infradead.org/users/hch/misc.git