agp: alpha nopage

#include "agp.h"

static struct page *alpha_core_agp_vm_nopage(struct vm_area_struct *vma,

					     unsigned long address,

					     int *type)

static int alpha_core_agp_vm_fault(struct vm_area_struct *vma,

					struct vm_fault *vmf)

{

	alpha_agp_info *agp = agp_bridge->dev_private_data;

	dma_addr_t dma_addr;

	unsigned long pa;

	struct page *page;

	dma_addr = address - vma->vm_start + agp->aperture.bus_base;

	dma_addr = (unsigned long)vmf->virtual_address - vma->vm_start

						+ agp->aperture.bus_base;

	pa = agp->ops->translate(agp, dma_addr);

	if (pa == (unsigned long)-EINVAL)

		return NULL;	/* no translation */

		return VM_FAULT_SIGBUS;	/* no translation */

	/*

	 * Get the page, inc the use count, and return it

	 */

	page = virt_to_page(__va(pa));

	get_page(page);

	if (type)

		*type = VM_FAULT_MINOR;

	return page;

	vmf->page = page;

	return 0;

}

static struct aper_size_info_fixed alpha_core_agp_sizes[] =

};

struct vm_operations_struct alpha_core_agp_vm_ops = {

	.nopage = alpha_core_agp_vm_nopage,

	.fault = alpha_core_agp_vm_fault,

};