C++ (Cpp) pmap_devmap_find_va示例

示例#1

文件： obio_space.c 项目： lacombar/netbsd-alc

void
obio_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
{
	vaddr_t va, endva;

	if (pmap_devmap_find_va(bsh, size) != NULL) {
		/* Device was statically mapped; nothing to do. */
		return;
	}

	endva = round_page(bsh + size);
	va = trunc_page(bsh);

	pmap_kremove(va, endva - va);
	uvm_km_free(kernel_map, va, endva - va, UVM_KMF_VAONLY);
}

示例#2

void
i80321_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
{
	vaddr_t va, endva;

	if (pmap_devmap_find_va(bsh, size) != NULL) {
		/* Device was statically mapped; nothing to do. */
		return;
	}

	va = trunc_page((vaddr_t)bsh);
	endva = round_page(bsh + size);

	pmap_kremove(va, endva - va);
	pmap_update(pmap_kernel());
	km_free((void *)va, endva - va, &kv_any, &kp_none);
}

示例#3

文件： ifpga_io.c 项目： ryo/netbsd-src

void
ifpga_mem_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
{
    vaddr_t startva, endva;

    if (pmap_devmap_find_va(bsh, size) != NULL) {
        /* Device was statically mapped; nothing to do. */
        return;
    }

    startva = trunc_page(bsh);
    endva = round_page(bsh + size);

    pmap_remove(pmap_kernel(), startva, endva);
    pmap_update(pmap_kernel());
    uvm_km_free(kernel_map, startva, endva - startva, UVM_KMF_VAONLY);
}

示例#4

文件： mpcore_space.c 项目： krytarowski/netbsd-current-src-sys

void
mpcore_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
{
	vaddr_t	va;
	vsize_t	sz;

	if (pmap_devmap_find_va(bsh, size) != NULL) {
		/* Device was statically mapped; nothing to do. */
		return;
	}

	va = trunc_page(bsh);
	sz = round_page(bsh + size) - va;

	pmap_kremove(va, sz);
	pmap_update(pmap_kernel());
	uvm_km_free(kernel_map, va, sz, UVM_KMF_VAONLY);
}

示例#5

文件： bus_space_generic.c 项目： dcui/FreeBSD-9.3_kernel

void
generic_bs_unmap(void *t, bus_space_handle_t h, bus_size_t size)
{
	vm_offset_t va, endva;

	if (pmap_devmap_find_va((vm_offset_t)t, size) != NULL) {
		/* Device was statically mapped; nothing to do. */
		return;
	}

	endva = round_page((vm_offset_t)t + size);
	va = trunc_page((vm_offset_t)t);

	while (va < endva) {
		pmap_kremove(va);
		va += PAGE_SIZE;
	}
	kmem_free(kernel_map, va, endva - va);
}