77 static int synth_alloc_pages(struct snd_emu10k1 *hw, struct snd_emu10k1_memblk *blk);
78 static int synth_free_pages(struct snd_emu10k1 *hw, struct snd_emu10k1_memblk *blk);
84 static void emu10k1_memblk_init(struct snd_emu10k1_memblk *blk)  in emu10k1_memblk_init()  argument
86 	blk->mapped_page = -1;  in emu10k1_memblk_init()
87 	INIT_LIST_HEAD(&blk->mapped_link);  in emu10k1_memblk_init()
88 	INIT_LIST_HEAD(&blk->mapped_order_link);  in emu10k1_memblk_init()
89 	blk->map_locked = 0;  in emu10k1_memblk_init()
91 	blk->first_page = get_aligned_page(blk->mem.offset);  in emu10k1_memblk_init()
92 	blk->last_page = get_aligned_page(blk->mem.offset + blk->mem.size - 1);  in emu10k1_memblk_init()
93 	blk->pages = blk->last_page - blk->first_page + 1;  in emu10k1_memblk_init()
112 		struct snd_emu10k1_memblk *blk = get_emu10k1_memblk(pos, mapped_link);  in search_empty_map_area()  local
113 		if (blk->mapped_page < 0)  in search_empty_map_area()
115 		size = blk->mapped_page - page;  in search_empty_map_area()
126 		page = blk->mapped_page + blk->pages;  in search_empty_map_area()
142 static int map_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in map_memblk()  argument
147 	page = search_empty_map_area(emu, blk->pages, &next);  in map_memblk()
151 	list_add_tail(&blk->mapped_link, next);  in map_memblk()
153 	list_add_tail(&blk->mapped_order_link, &emu->mapped_order_link_head);  in map_memblk()
154 	blk->mapped_page = page;  in map_memblk()
156 	for (pg = blk->first_page; pg <= blk->last_page; pg++) {  in map_memblk()
169 static int unmap_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in unmap_memblk()  argument
176 	if ((p = blk->mapped_link.prev) != &emu->mapped_link_head) {  in unmap_memblk()
181 	if ((p = blk->mapped_link.next) != &emu->mapped_link_head) {  in unmap_memblk()
188 	list_del(&blk->mapped_link);  in unmap_memblk()
189 	list_del(&blk->mapped_order_link);  in unmap_memblk()
191 	mpage = blk->mapped_page;  in unmap_memblk()
192 	for (pg = blk->first_page; pg <= blk->last_page; pg++) {  in unmap_memblk()
196 	blk->mapped_page = -1;  in unmap_memblk()
209 	struct snd_emu10k1_memblk *blk;  in search_empty()  local
215 		blk = get_emu10k1_memblk(p, mem.list);  in search_empty()
216 		if (page + psize <= blk->first_page)  in search_empty()
218 		page = blk->last_page + 1;  in search_empty()
225 …blk = (struct snd_emu10k1_memblk *)__snd_util_memblk_new(emu->memhdr, psize << PAGE_SHIFT, p->prev…  in search_empty()
226 	if (blk == NULL)  in search_empty()
228 	blk->mem.offset = aligned_page_offset(page); /* set aligned offset */  in search_empty()
229 	emu10k1_memblk_init(blk);  in search_empty()
230 	return blk;  in search_empty()
258 int snd_emu10k1_memblk_map(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in snd_emu10k1_memblk_map()  argument
267 	if (blk->mapped_page >= 0) {  in snd_emu10k1_memblk_map()
269 		list_move_tail(&blk->mapped_order_link,  in snd_emu10k1_memblk_map()
274 	if ((err = map_memblk(emu, blk)) < 0) {  in snd_emu10k1_memblk_map()
284 			if (size >= blk->pages) {  in snd_emu10k1_memblk_map()
286 				err = map_memblk(emu, blk);  in snd_emu10k1_memblk_map()
305 	struct snd_emu10k1_memblk *blk;  in snd_emu10k1_alloc_pages()  local
320 	blk = search_empty(emu, runtime->dma_bytes + idx);  in snd_emu10k1_alloc_pages()
321 	if (blk == NULL) {  in snd_emu10k1_alloc_pages()
329 	for (page = blk->first_page; page <= blk->last_page; page++, idx++) {  in snd_emu10k1_alloc_pages()
347 	blk->map_locked = 1; /* do not unmap this block! */  in snd_emu10k1_alloc_pages()
348 	err = snd_emu10k1_memblk_map(emu, blk);  in snd_emu10k1_alloc_pages()
350 		__snd_util_mem_free(hdr, (struct snd_util_memblk *)blk);  in snd_emu10k1_alloc_pages()
355 	return (struct snd_util_memblk *)blk;  in snd_emu10k1_alloc_pages()
362 int snd_emu10k1_free_pages(struct snd_emu10k1 *emu, struct snd_util_memblk *blk)  in snd_emu10k1_free_pages()  argument
364 	if (snd_BUG_ON(!emu || !blk))  in snd_emu10k1_free_pages()
366 	return snd_emu10k1_synth_free(emu, blk);  in snd_emu10k1_free_pages()
381 	struct snd_emu10k1_memblk *blk;  in snd_emu10k1_synth_alloc()  local
385 	blk = (struct snd_emu10k1_memblk *)__snd_util_mem_alloc(hdr, size);  in snd_emu10k1_synth_alloc()
386 	if (blk == NULL) {  in snd_emu10k1_synth_alloc()
390 	if (synth_alloc_pages(hw, blk)) {  in snd_emu10k1_synth_alloc()
391 		__snd_util_mem_free(hdr, (struct snd_util_memblk *)blk);  in snd_emu10k1_synth_alloc()
395 	snd_emu10k1_memblk_map(hw, blk);  in snd_emu10k1_synth_alloc()
397 	return (struct snd_util_memblk *)blk;  in snd_emu10k1_synth_alloc()
409 	struct snd_emu10k1_memblk *blk = (struct snd_emu10k1_memblk *)memblk;  in snd_emu10k1_synth_free()  local
414 	if (blk->mapped_page >= 0)  in snd_emu10k1_synth_free()
415 		unmap_memblk(emu, blk);  in snd_emu10k1_synth_free()
417 	synth_free_pages(emu, blk);  in snd_emu10k1_synth_free()
427 				  struct snd_emu10k1_memblk *blk,  in get_single_page_range()  argument
433 	first_page = blk->first_page;  in get_single_page_range()
434 	if ((p = blk->mem.list.prev) != &hdr->block) {  in get_single_page_range()
439 	last_page = blk->last_page;  in get_single_page_range()
440 	if ((p = blk->mem.list.next) != &hdr->block) {  in get_single_page_range()
465 static int synth_alloc_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in synth_alloc_pages()  argument
469 	emu10k1_memblk_init(blk);  in synth_alloc_pages()
470 	get_single_page_range(emu->memhdr, blk, &first_page, &last_page);  in synth_alloc_pages()
497 static int synth_free_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in synth_free_pages()  argument
501 	get_single_page_range(emu->memhdr, blk, &first_page, &last_page);  in synth_free_pages()
525 int snd_emu10k1_synth_bzero(struct snd_emu10k1 *emu, struct snd_util_memblk *blk,  in snd_emu10k1_synth_bzero()  argument
530 	struct snd_emu10k1_memblk *p = (struct snd_emu10k1_memblk *)blk;  in snd_emu10k1_synth_bzero()
532 	offset += blk->offset & (PAGE_SIZE - 1);  in snd_emu10k1_synth_bzero()
555 int snd_emu10k1_synth_copy_from_user(struct snd_emu10k1 *emu, struct snd_util_memblk *blk,  in snd_emu10k1_synth_copy_from_user()  argument
560 	struct snd_emu10k1_memblk *p = (struct snd_emu10k1_memblk *)blk;  in snd_emu10k1_synth_copy_from_user()
562 	offset += blk->offset & (PAGE_SIZE - 1);  in snd_emu10k1_synth_copy_from_user()