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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
148 lines
4.4 KiB
C
148 lines
4.4 KiB
C
/* include this file if the platform implements the dma_ DMA Mapping API
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* and wants to provide the pci_ DMA Mapping API in terms of it */
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#ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H
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#define _ASM_GENERIC_PCI_DMA_COMPAT_H
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#include <linux/dma-mapping.h>
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/* This defines the direction arg to the DMA mapping routines. */
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#define PCI_DMA_BIDIRECTIONAL 0
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#define PCI_DMA_TODEVICE 1
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#define PCI_DMA_FROMDEVICE 2
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#define PCI_DMA_NONE 3
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static inline void *
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pci_alloc_consistent(struct pci_dev *hwdev, size_t size,
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dma_addr_t *dma_handle)
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{
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return dma_alloc_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, dma_handle, GFP_ATOMIC);
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}
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static inline void *
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pci_zalloc_consistent(struct pci_dev *hwdev, size_t size,
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dma_addr_t *dma_handle)
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{
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return dma_zalloc_coherent(hwdev == NULL ? NULL : &hwdev->dev,
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size, dma_handle, GFP_ATOMIC);
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}
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static inline void
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pci_free_consistent(struct pci_dev *hwdev, size_t size,
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void *vaddr, dma_addr_t dma_handle)
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{
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dma_free_coherent(hwdev == NULL ? NULL : &hwdev->dev, size, vaddr, dma_handle);
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}
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static inline dma_addr_t
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pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction)
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{
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return dma_map_single(hwdev == NULL ? NULL : &hwdev->dev, ptr, size, (enum dma_data_direction)direction);
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}
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static inline void
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pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr,
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size_t size, int direction)
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{
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dma_unmap_single(hwdev == NULL ? NULL : &hwdev->dev, dma_addr, size, (enum dma_data_direction)direction);
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}
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static inline dma_addr_t
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pci_map_page(struct pci_dev *hwdev, struct page *page,
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unsigned long offset, size_t size, int direction)
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{
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return dma_map_page(hwdev == NULL ? NULL : &hwdev->dev, page, offset, size, (enum dma_data_direction)direction);
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}
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static inline void
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pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address,
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size_t size, int direction)
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{
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dma_unmap_page(hwdev == NULL ? NULL : &hwdev->dev, dma_address, size, (enum dma_data_direction)direction);
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}
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static inline int
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pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,
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int nents, int direction)
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{
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return dma_map_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
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}
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static inline void
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pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg,
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int nents, int direction)
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{
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dma_unmap_sg(hwdev == NULL ? NULL : &hwdev->dev, sg, nents, (enum dma_data_direction)direction);
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}
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static inline void
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pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle,
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size_t size, int direction)
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{
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dma_sync_single_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
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}
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static inline void
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pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle,
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size_t size, int direction)
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{
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dma_sync_single_for_device(hwdev == NULL ? NULL : &hwdev->dev, dma_handle, size, (enum dma_data_direction)direction);
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}
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static inline void
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pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg,
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int nelems, int direction)
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{
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dma_sync_sg_for_cpu(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
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}
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static inline void
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pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg,
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int nelems, int direction)
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{
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dma_sync_sg_for_device(hwdev == NULL ? NULL : &hwdev->dev, sg, nelems, (enum dma_data_direction)direction);
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}
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static inline int
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pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr)
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{
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return dma_mapping_error(&pdev->dev, dma_addr);
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}
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#ifdef CONFIG_PCI
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static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
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{
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return dma_set_mask(&dev->dev, mask);
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}
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static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
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{
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return dma_set_coherent_mask(&dev->dev, mask);
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}
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static inline int pci_set_dma_max_seg_size(struct pci_dev *dev,
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unsigned int size)
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{
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return dma_set_max_seg_size(&dev->dev, size);
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}
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static inline int pci_set_dma_seg_boundary(struct pci_dev *dev,
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unsigned long mask)
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{
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return dma_set_seg_boundary(&dev->dev, mask);
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}
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#else
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static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
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{ return -EIO; }
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static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
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{ return -EIO; }
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static inline int pci_set_dma_max_seg_size(struct pci_dev *dev,
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unsigned int size)
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{ return -EIO; }
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static inline int pci_set_dma_seg_boundary(struct pci_dev *dev,
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unsigned long mask)
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{ return -EIO; }
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#endif
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#endif
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