提交 3efdd5fe 编写于 作者: D David Woodhouse 提交者: Bjorn Helgaas

cris/PCI: Use generic pci_mmap_resource_range()

Signed-off-by: NDavid Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NJesper Nilsson <jesper.nilsson@axis.com>
上级 00d2904f
...@@ -14,29 +14,6 @@ void pcibios_set_master(struct pci_dev *dev) ...@@ -14,29 +14,6 @@ void pcibios_set_master(struct pci_dev *dev)
pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat); pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
} }
int pci_mmap_page_range(struct pci_dev *dev, int bar,
struct vm_area_struct *vma,
enum pci_mmap_state mmap_state, int write_combine)
{
unsigned long prot;
/* Leave vm_pgoff as-is, the PCI space address is the physical
* address on this platform.
*/
prot = pgprot_val(vma->vm_page_prot);
vma->vm_page_prot = __pgprot(prot);
/* Write-combine setting is ignored, it is changed via the mtrr
* interfaces on this platform.
*/
if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
vma->vm_end - vma->vm_start,
vma->vm_page_prot))
return -EAGAIN;
return 0;
}
resource_size_t resource_size_t
pcibios_align_resource(void *data, const struct resource *res, pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align) resource_size_t size, resource_size_t align)
......
...@@ -42,6 +42,7 @@ struct pci_dev; ...@@ -42,6 +42,7 @@ struct pci_dev;
#define PCI_DMA_BUS_IS_PHYS (1) #define PCI_DMA_BUS_IS_PHYS (1)
#define HAVE_PCI_MMAP #define HAVE_PCI_MMAP
#define ARCH_GENERIC_PCI_MMAP_RESOURCE
#endif /* __KERNEL__ */ #endif /* __KERNEL__ */
......
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