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82bf0baad9
Add this helper for consistency with pci_zalloc_coherent and the ability to remove unnecessary memset(,0,) uses. Signed-off-by: Joe Perches <joe@perches.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: "John W. Linville" <linville@tuxdriver.com> Cc: "Stephen M. Cameron" <scameron@beardog.cce.hp.com> Cc: Adam Radford <linuxraid@lsi.com> Cc: Chaoming Li <chaoming_li@realsil.com.cn> Cc: Chas Williams <chas@cmf.nrl.navy.mil> Cc: Christian Benvenuti <benve@cisco.com> Cc: Christopher Harrer <charrer@alacritech.com> Cc: Dario Ballabio <ballabio_dario@emc.com> Cc: David Airlie <airlied@linux.ie> Cc: Don Fry <pcnet32@frontier.com> Cc: Faisal Latif <faisal.latif@intel.com> Cc: Forest Bond <forest@alittletooquiet.net> Cc: Govindarajulu Varadarajan <_govind@gmx.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Cc: Hans Verkuil <hverkuil@xs4all.nl> Cc: Jayamohan Kallickal <jayamohan.kallickal@emulex.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Lior Dotan <liodot@gmail.com> Cc: Manish Chopra <manish.chopra@qlogic.com> Cc: Manohar Vanga <manohar.vanga@gmail.com> Cc: Martyn Welch <martyn.welch@ge.com> Cc: Mauro Carvalho Chehab <m.chehab@samsung.com> Cc: Michael Neuffer <mike@i-Connect.Net> Cc: Mirko Lindner <mlindner@marvell.com> Cc: Neel Patel <neepatel@cisco.com> Cc: Neela Syam Kolli <megaraidlinux@lsi.com> Cc: Rajesh Borundia <rajesh.borundia@qlogic.com> Cc: Roland Dreier <roland@kernel.org> Cc: Ron Mercer <ron.mercer@qlogic.com> Cc: Samuel Ortiz <samuel@sortiz.org> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Shahed Shaikh <shahed.shaikh@qlogic.com> Cc: Sony Chacko <sony.chacko@qlogic.com> Cc: Stanislav Yakovlev <stas.yakovlev@gmail.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Steve Wise <swise@opengridcomputing.com> Cc: Sujith Sankar <ssujith@cisco.com> Cc: Tom Tucker <tom@opengridcomputing.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
125 lines
3.7 KiB
C
125 lines
3.7 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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static inline int
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pci_dma_supported(struct pci_dev *hwdev, u64 mask)
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{
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return dma_supported(hwdev == NULL ? NULL : &hwdev->dev, mask);
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}
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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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#endif
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#endif
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