Differential D19247 Diff 57872 sys/contrib/vchiq/interface/vchiq_arm/vchiq_2835_arm.c

Changeset View

Standalone View

Show First 20 Lines • Show All 468 Lines • ▼ Show 20 Lines	actual_pages = vm_fault_quick_hold_pages(&p->p_vmspace->vm_map,
(type == PAGELIST_READ ? VM_PROT_WRITE : 0 ) \| VM_PROT_READ, pages, num_pages);		(type == PAGELIST_READ ? VM_PROT_WRITE : 0 ) \| VM_PROT_READ, pages, num_pages);

if (actual_pages != num_pages) {		if (actual_pages != num_pages) {
vm_page_unhold_pages(pages, actual_pages);		vm_page_unhold_pages(pages, actual_pages);
free(pagelist, M_VCPAGELIST);		free(pagelist, M_VCPAGELIST);
return (-ENOMEM);		return (-ENOMEM);
}		}

for (i = 0; i < actual_pages; i++) {
vm_page_lock(pages[i]);
vm_page_wire(pages[i]);
vm_page_unhold(pages[i]);
vm_page_unlock(pages[i]);
}

pagelist->length = count;		pagelist->length = count;
pagelist->type = type;		pagelist->type = type;
pagelist->offset = offset;		pagelist->offset = offset;

/* Group the pages into runs of contiguous pages */		/* Group the pages into runs of contiguous pages */

base_addr = (void *)PHYS_TO_VCBUS(VM_PAGE_TO_PHYS(pages[0]));		base_addr = (void *)PHYS_TO_VCBUS(VM_PAGE_TO_PHYS(pages[0]));
next_addr = base_addr + PAGE_SIZE;		next_addr = base_addr + PAGE_SIZE;
▲ Show 20 Lines • Show All 128 Lines • Show Last 20 Lines