Home | History | Annotate | Download | only in linux

Lines Matching defs:mapping

40 #include <linux/io-mapping.h>
43 bus_space_io_mapping_init_wc(bus_space_tag_t bst, struct io_mapping *mapping,
67 	/* Initialize the mapping record.  */
68 	mapping->diom_bst = bst;
69 	mapping->base = addr;
70 	mapping->size = size;
71 	mapping->diom_atomic = false;
74 	mapping->diom_va = uvm_km_alloc(kernel_map, PAGE_SIZE, PAGE_SIZE,
76 	KASSERT(mapping->diom_va != 0);
82 io_mapping_fini(struct io_mapping *mapping)
85 	KASSERT(!mapping->diom_atomic);
87 	uvm_km_free(kernel_map, mapping->diom_va, PAGE_SIZE, UVM_KMF_VAONLY);
88 	mapping->diom_va = 0;	/* paranoia */
95 	struct io_mapping *mapping;
97 	mapping = kmem_alloc(sizeof(*mapping), KM_SLEEP);
98 	if (!bus_space_io_mapping_init_wc(bst, mapping, addr, size)) {
99 		kmem_free(mapping, sizeof(*mapping));
103 	return mapping;
107 io_mapping_free(struct io_mapping *mapping)
110 	io_mapping_fini(mapping);
111 	kmem_free(mapping, sizeof(*mapping));
115 io_mapping_map_wc(struct io_mapping *mapping, bus_addr_t offset,
123 	KASSERT(PAGE_SIZE <= mapping->size);
124 	KASSERT(offset <= (mapping->size - PAGE_SIZE));
129 	KASSERT(va != mapping->diom_va);
131 		cookie = bus_space_mmap(mapping->diom_bst, mapping->base,
146 io_mapping_unmap(struct io_mapping *mapping, void *ptr, bus_size_t size)
150 	KASSERT(mapping->diom_va != va);
159 io_mapping_map_atomic_wc(struct io_mapping *mapping, bus_addr_t offset)
164 	KASSERT(PAGE_SIZE <= mapping->size);
165 	KASSERT(offset <= (mapping->size - PAGE_SIZE));
167 	KASSERT(!mapping->diom_atomic);
169 	cookie = bus_space_mmap(mapping->diom_bst, mapping->base, offset,
174 	pmap_kenter_pa(mapping->diom_va, pmap_phys_address(cookie),
178 	mapping->diom_atomic = true;
179 	return (void *)mapping->diom_va;
183 io_mapping_unmap_atomic(struct io_mapping *mapping, void *ptr __diagused)
186 	KASSERT(mapping->diom_atomic);
187 	KASSERT(mapping->diom_va == (vaddr_t)ptr);
189 	pmap_kremove(mapping->diom_va, PAGE_SIZE);
192 	mapping->diom_atomic = false;