提交 bcea1db1 编写于 作者: D David S. Miller

[SPARC64]: Implement pci_resource_to_user()

This makes libpciaccess able to mmap() resources of the
device properly.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 11ee2957
......@@ -1275,4 +1275,20 @@ int pci_dma_supported(struct pci_dev *pdev, u64 device_mask)
return (device_mask & dma_addr_mask) == dma_addr_mask;
}
void pci_resource_to_user(const struct pci_dev *pdev, int bar,
const struct resource *rp, resource_size_t *start,
resource_size_t *end)
{
struct pci_pbm_info *pbm = pdev->dev.archdata.host_controller;
unsigned long offset;
if (rp->flags & IORESOURCE_IO)
offset = pbm->io_space.start;
else
offset = pbm->mem_space.start;
*start = rp->start - offset;
*end = rp->end - offset;
}
#endif /* !(CONFIG_PCI) */
......@@ -200,6 +200,10 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
struct device_node;
extern struct device_node *pci_device_to_OF_node(struct pci_dev *pdev);
#define HAVE_ARCH_PCI_RESOURCE_TO_USER
extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
const struct resource *rsrc,
resource_size_t *start, resource_size_t *end);
#endif /* __KERNEL__ */
#endif /* __SPARC64_PCI_H */
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