76 static int synth_alloc_pages(struct snd_emu10k1 *hw, struct snd_emu10k1_memblk *blk);
77 static int synth_free_pages(struct snd_emu10k1 *hw, struct snd_emu10k1_memblk *blk);
83 static void emu10k1_memblk_init(struct snd_emu10k1_memblk *blk)  in emu10k1_memblk_init()  argument
85 	blk->mapped_page = -1;  in emu10k1_memblk_init()
86 	INIT_LIST_HEAD(&blk->mapped_link);  in emu10k1_memblk_init()
87 	INIT_LIST_HEAD(&blk->mapped_order_link);  in emu10k1_memblk_init()
88 	blk->map_locked = 0;  in emu10k1_memblk_init()
90 	blk->first_page = get_aligned_page(blk->mem.offset);  in emu10k1_memblk_init()
91 	blk->last_page = get_aligned_page(blk->mem.offset + blk->mem.size - 1);  in emu10k1_memblk_init()
92 	blk->pages = blk->last_page - blk->first_page + 1;  in emu10k1_memblk_init()
111 		struct snd_emu10k1_memblk *blk = get_emu10k1_memblk(pos, mapped_link);  in search_empty_map_area()  local
112 		if (blk->mapped_page < 0)  in search_empty_map_area()
114 		size = blk->mapped_page - page;  in search_empty_map_area()
125 		page = blk->mapped_page + blk->pages;  in search_empty_map_area()
141 static int map_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in map_memblk()  argument
146 	page = search_empty_map_area(emu, blk->pages, &next);  in map_memblk()
150 	list_add_tail(&blk->mapped_link, next);  in map_memblk()
152 	list_add_tail(&blk->mapped_order_link, &emu->mapped_order_link_head);  in map_memblk()
153 	blk->mapped_page = page;  in map_memblk()
155 	for (pg = blk->first_page; pg <= blk->last_page; pg++) {  in map_memblk()
168 static int unmap_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in unmap_memblk()  argument
175 	if ((p = blk->mapped_link.prev) != &emu->mapped_link_head) {  in unmap_memblk()
180 	if ((p = blk->mapped_link.next) != &emu->mapped_link_head) {  in unmap_memblk()
187 	list_del(&blk->mapped_link);  in unmap_memblk()
188 	list_del(&blk->mapped_order_link);  in unmap_memblk()
190 	mpage = blk->mapped_page;  in unmap_memblk()
191 	for (pg = blk->first_page; pg <= blk->last_page; pg++) {  in unmap_memblk()
195 	blk->mapped_page = -1;  in unmap_memblk()
208 	struct snd_emu10k1_memblk *blk;  in search_empty()  local
214 		blk = get_emu10k1_memblk(p, mem.list);  in search_empty()
215 		if (page + psize <= blk->first_page)  in search_empty()
217 		page = blk->last_page + 1;  in search_empty()
224 …blk = (struct snd_emu10k1_memblk *)__snd_util_memblk_new(emu->memhdr, psize << PAGE_SHIFT, p->prev…  in search_empty()
225 	if (blk == NULL)  in search_empty()
227 	blk->mem.offset = aligned_page_offset(page); /* set aligned offset */  in search_empty()
228 	emu10k1_memblk_init(blk);  in search_empty()
229 	return blk;  in search_empty()
255 int snd_emu10k1_memblk_map(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in snd_emu10k1_memblk_map()  argument
264 	if (blk->mapped_page >= 0) {  in snd_emu10k1_memblk_map()
266 		list_del(&blk->mapped_order_link);  in snd_emu10k1_memblk_map()
267 		list_add_tail(&blk->mapped_order_link, &emu->mapped_order_link_head);  in snd_emu10k1_memblk_map()
271 	if ((err = map_memblk(emu, blk)) < 0) {  in snd_emu10k1_memblk_map()
281 			if (size >= blk->pages) {  in snd_emu10k1_memblk_map()
283 				err = map_memblk(emu, blk);  in snd_emu10k1_memblk_map()
302 	struct snd_emu10k1_memblk *blk;  in snd_emu10k1_alloc_pages()  local
317 	blk = search_empty(emu, runtime->dma_bytes + idx);  in snd_emu10k1_alloc_pages()
318 	if (blk == NULL) {  in snd_emu10k1_alloc_pages()
326 	for (page = blk->first_page; page <= blk->last_page; page++, idx++) {  in snd_emu10k1_alloc_pages()
340 	blk->map_locked = 1; /* do not unmap this block! */  in snd_emu10k1_alloc_pages()
341 	err = snd_emu10k1_memblk_map(emu, blk);  in snd_emu10k1_alloc_pages()
343 		__snd_util_mem_free(hdr, (struct snd_util_memblk *)blk);  in snd_emu10k1_alloc_pages()
348 	return (struct snd_util_memblk *)blk;  in snd_emu10k1_alloc_pages()
355 int snd_emu10k1_free_pages(struct snd_emu10k1 *emu, struct snd_util_memblk *blk)  in snd_emu10k1_free_pages()  argument
357 	if (snd_BUG_ON(!emu || !blk))  in snd_emu10k1_free_pages()
359 	return snd_emu10k1_synth_free(emu, blk);  in snd_emu10k1_free_pages()
374 	struct snd_emu10k1_memblk *blk;  in snd_emu10k1_synth_alloc()  local
378 	blk = (struct snd_emu10k1_memblk *)__snd_util_mem_alloc(hdr, size);  in snd_emu10k1_synth_alloc()
379 	if (blk == NULL) {  in snd_emu10k1_synth_alloc()
383 	if (synth_alloc_pages(hw, blk)) {  in snd_emu10k1_synth_alloc()
384 		__snd_util_mem_free(hdr, (struct snd_util_memblk *)blk);  in snd_emu10k1_synth_alloc()
388 	snd_emu10k1_memblk_map(hw, blk);  in snd_emu10k1_synth_alloc()
390 	return (struct snd_util_memblk *)blk;  in snd_emu10k1_synth_alloc()
402 	struct snd_emu10k1_memblk *blk = (struct snd_emu10k1_memblk *)memblk;  in snd_emu10k1_synth_free()  local
407 	if (blk->mapped_page >= 0)  in snd_emu10k1_synth_free()
408 		unmap_memblk(emu, blk);  in snd_emu10k1_synth_free()
410 	synth_free_pages(emu, blk);  in snd_emu10k1_synth_free()
420 				  struct snd_emu10k1_memblk *blk,  in get_single_page_range()  argument
426 	first_page = blk->first_page;  in get_single_page_range()
427 	if ((p = blk->mem.list.prev) != &hdr->block) {  in get_single_page_range()
432 	last_page = blk->last_page;  in get_single_page_range()
433 	if ((p = blk->mem.list.next) != &hdr->block) {  in get_single_page_range()
458 static int synth_alloc_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in synth_alloc_pages()  argument
462 	emu10k1_memblk_init(blk);  in synth_alloc_pages()
463 	get_single_page_range(emu->memhdr, blk, &first_page, &last_page);  in synth_alloc_pages()
490 static int synth_free_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in synth_free_pages()  argument
494 	get_single_page_range(emu->memhdr, blk, &first_page, &last_page);  in synth_free_pages()
517 int snd_emu10k1_synth_bzero(struct snd_emu10k1 *emu, struct snd_util_memblk *blk,  in snd_emu10k1_synth_bzero()  argument
522 	struct snd_emu10k1_memblk *p = (struct snd_emu10k1_memblk *)blk;  in snd_emu10k1_synth_bzero()
524 	offset += blk->offset & (PAGE_SIZE - 1);  in snd_emu10k1_synth_bzero()
547 int snd_emu10k1_synth_copy_from_user(struct snd_emu10k1 *emu, struct snd_util_memblk *blk,  in snd_emu10k1_synth_copy_from_user()  argument
552 	struct snd_emu10k1_memblk *p = (struct snd_emu10k1_memblk *)blk;  in snd_emu10k1_synth_copy_from_user()
554 	offset += blk->offset & (PAGE_SIZE - 1);  in snd_emu10k1_synth_copy_from_user()