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head/sys/vm/vm_kern.c
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kmem_alloc_attr_domain(int domain, vm_size_t size, int flags, vm_paddr_t low, | kmem_alloc_attr_domain(int domain, vm_size_t size, int flags, vm_paddr_t low, | ||||
vm_paddr_t high, vm_memattr_t memattr) | vm_paddr_t high, vm_memattr_t memattr) | ||||
{ | { | ||||
vmem_t *vmem; | vmem_t *vmem; | ||||
vm_object_t object = kernel_object; | vm_object_t object = kernel_object; | ||||
vm_offset_t addr, i, offset; | vm_offset_t addr, i, offset; | ||||
vm_page_t m; | vm_page_t m; | ||||
int pflags, tries; | int pflags, tries; | ||||
vm_prot_t prot; | |||||
size = round_page(size); | size = round_page(size); | ||||
vmem = vm_dom[domain].vmd_kernel_arena; | vmem = vm_dom[domain].vmd_kernel_arena; | ||||
if (vmem_alloc(vmem, size, M_BESTFIT | flags, &addr)) | if (vmem_alloc(vmem, size, M_BESTFIT | flags, &addr)) | ||||
return (0); | return (0); | ||||
offset = addr - VM_MIN_KERNEL_ADDRESS; | offset = addr - VM_MIN_KERNEL_ADDRESS; | ||||
pflags = malloc2vm_flags(flags) | VM_ALLOC_NOBUSY | VM_ALLOC_WIRED; | pflags = malloc2vm_flags(flags) | VM_ALLOC_NOBUSY | VM_ALLOC_WIRED; | ||||
pflags &= ~(VM_ALLOC_NOWAIT | VM_ALLOC_WAITOK | VM_ALLOC_WAITFAIL); | pflags &= ~(VM_ALLOC_NOWAIT | VM_ALLOC_WAITOK | VM_ALLOC_WAITFAIL); | ||||
pflags |= VM_ALLOC_NOWAIT; | pflags |= VM_ALLOC_NOWAIT; | ||||
prot = (flags & M_EXEC) != 0 ? VM_PROT_ALL : VM_PROT_RW; | |||||
VM_OBJECT_WLOCK(object); | VM_OBJECT_WLOCK(object); | ||||
for (i = 0; i < size; i += PAGE_SIZE) { | for (i = 0; i < size; i += PAGE_SIZE) { | ||||
tries = 0; | tries = 0; | ||||
retry: | retry: | ||||
m = vm_page_alloc_contig_domain(object, atop(offset + i), | m = vm_page_alloc_contig_domain(object, atop(offset + i), | ||||
domain, pflags, 1, low, high, PAGE_SIZE, 0, memattr); | domain, pflags, 1, low, high, PAGE_SIZE, 0, memattr); | ||||
if (m == NULL) { | if (m == NULL) { | ||||
VM_OBJECT_WUNLOCK(object); | VM_OBJECT_WUNLOCK(object); | ||||
Show All 11 Lines | if (m == NULL) { | ||||
return (0); | return (0); | ||||
} | } | ||||
KASSERT(vm_phys_domain(m) == domain, | KASSERT(vm_phys_domain(m) == domain, | ||||
("kmem_alloc_attr_domain: Domain mismatch %d != %d", | ("kmem_alloc_attr_domain: Domain mismatch %d != %d", | ||||
vm_phys_domain(m), domain)); | vm_phys_domain(m), domain)); | ||||
if ((flags & M_ZERO) && (m->flags & PG_ZERO) == 0) | if ((flags & M_ZERO) && (m->flags & PG_ZERO) == 0) | ||||
pmap_zero_page(m); | pmap_zero_page(m); | ||||
m->valid = VM_PAGE_BITS_ALL; | m->valid = VM_PAGE_BITS_ALL; | ||||
pmap_enter(kernel_pmap, addr + i, m, VM_PROT_RW, | pmap_enter(kernel_pmap, addr + i, m, prot, | ||||
VM_PROT_RW | PMAP_ENTER_WIRED, 0); | prot | PMAP_ENTER_WIRED, 0); | ||||
} | } | ||||
VM_OBJECT_WUNLOCK(object); | VM_OBJECT_WUNLOCK(object); | ||||
return (addr); | return (addr); | ||||
} | } | ||||
vm_offset_t | vm_offset_t | ||||
kmem_alloc_attr(vm_size_t size, int flags, vm_paddr_t low, vm_paddr_t high, | kmem_alloc_attr(vm_size_t size, int flags, vm_paddr_t low, vm_paddr_t high, | ||||
vm_memattr_t memattr) | vm_memattr_t memattr) | ||||
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