mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-04 05:46:46 +07:00
d3fa72e455
Pass struct dev pointer to dma_cache_sync() dma_cache_sync() is ill-designed in that it does not have a struct device pointer argument which makes proper support for systems that consist of a mix of coherent and non-coherent DMA devices hard. Change dma_cache_sync to take a struct device pointer as first argument and fix all its callers to pass it. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
68 lines
2.6 KiB
C
68 lines
2.6 KiB
C
#ifndef _ALPHA_DMA_MAPPING_H
|
|
#define _ALPHA_DMA_MAPPING_H
|
|
|
|
|
|
#ifdef CONFIG_PCI
|
|
|
|
#include <linux/pci.h>
|
|
|
|
#define dma_map_single(dev, va, size, dir) \
|
|
pci_map_single(alpha_gendev_to_pci(dev), va, size, dir)
|
|
#define dma_unmap_single(dev, addr, size, dir) \
|
|
pci_unmap_single(alpha_gendev_to_pci(dev), addr, size, dir)
|
|
#define dma_alloc_coherent(dev, size, addr, gfp) \
|
|
pci_alloc_consistent(alpha_gendev_to_pci(dev), size, addr)
|
|
#define dma_free_coherent(dev, size, va, addr) \
|
|
pci_free_consistent(alpha_gendev_to_pci(dev), size, va, addr)
|
|
#define dma_map_page(dev, page, off, size, dir) \
|
|
pci_map_page(alpha_gendev_to_pci(dev), page, off, size, dir)
|
|
#define dma_unmap_page(dev, addr, size, dir) \
|
|
pci_unmap_page(alpha_gendev_to_pci(dev), addr, size, dir)
|
|
#define dma_map_sg(dev, sg, nents, dir) \
|
|
pci_map_sg(alpha_gendev_to_pci(dev), sg, nents, dir)
|
|
#define dma_unmap_sg(dev, sg, nents, dir) \
|
|
pci_unmap_sg(alpha_gendev_to_pci(dev), sg, nents, dir)
|
|
#define dma_supported(dev, mask) \
|
|
pci_dma_supported(alpha_gendev_to_pci(dev), mask)
|
|
#define dma_mapping_error(addr) \
|
|
pci_dma_mapping_error(addr)
|
|
|
|
#else /* no PCI - no IOMMU. */
|
|
|
|
struct scatterlist;
|
|
void *dma_alloc_coherent(struct device *dev, size_t size,
|
|
dma_addr_t *dma_handle, gfp_t gfp);
|
|
int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
|
|
enum dma_data_direction direction);
|
|
|
|
#define dma_free_coherent(dev, size, va, addr) \
|
|
free_pages((unsigned long)va, get_order(size))
|
|
#define dma_supported(dev, mask) (mask < 0x00ffffffUL ? 0 : 1)
|
|
#define dma_map_single(dev, va, size, dir) virt_to_phys(va)
|
|
#define dma_map_page(dev, page, off, size, dir) (page_to_pa(page) + off)
|
|
|
|
#define dma_unmap_single(dev, addr, size, dir) do { } while (0)
|
|
#define dma_unmap_page(dev, addr, size, dir) do { } while (0)
|
|
#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0)
|
|
|
|
#define dma_mapping_error(addr) (0)
|
|
|
|
#endif /* !CONFIG_PCI */
|
|
|
|
#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
|
|
#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
|
|
#define dma_is_consistent(d, h) (1)
|
|
|
|
int dma_set_mask(struct device *dev, u64 mask);
|
|
|
|
#define dma_sync_single_for_cpu(dev, addr, size, dir) do { } while (0)
|
|
#define dma_sync_single_for_device(dev, addr, size, dir) do { } while (0)
|
|
#define dma_sync_single_range(dev, addr, off, size, dir) do { } while (0)
|
|
#define dma_sync_sg_for_cpu(dev, sg, nents, dir) do { } while (0)
|
|
#define dma_sync_sg_for_device(dev, sg, nents, dir) do { } while (0)
|
|
#define dma_cache_sync(dev, va, size, dir) do { } while (0)
|
|
|
|
#define dma_get_cache_alignment() L1_CACHE_BYTES
|
|
|
|
#endif /* _ALPHA_DMA_MAPPING_H */
|