redonkable/remarkable-linux
redonkable/remarkable-linux
1
0
Fork 0
Code Releases Activity

cris/PCI: Use generic pci_mmap_resource_range()

Browse source 
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
This commit is contained in:
David Woodhouse 2017-04-12 13:26:01 +01:00 committed by Bjorn Helgaas
parent 00d2904ffe
commit 3efdd5fe0a
2 changed files with 1 additions and 23 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
arch/cris/arch-v32/drivers/pci/bios.c
View file

@ -14,29 +14,6 @@ void pcibios_set_master(struct pci_dev *dev)
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
pcibios_align_resource(void *data, const struct resource *res,
resource_size_t size, resource_size_t align)

1
arch/cris/include/asm/pci.h
View file

@ -42,6 +42,7 @@ struct pci_dev;
#define PCI_DMA_BUS_IS_PHYS (1)
#define HAVE_PCI_MMAP
#define ARCH_GENERIC_PCI_MMAP_RESOURCE
#endif /* __KERNEL__ */