36 #define __set_ptb_entry(emu,page,addr) \  argument
37 	(((u32 *)(emu)->ptb_pages.area)[page] = cpu_to_le32(((addr) << (emu->address_mode)) | (page)))
50 #define set_ptb_entry(emu,page,addr)	__set_ptb_entry(emu,page,addr)  argument
52 #define set_silent_ptb(emu,page)	__set_ptb_entry(emu,page,emu->silent_page.addr)  argument
55 static inline void set_ptb_entry(struct snd_emu10k1 *emu, int page, dma_addr_t addr)  in set_ptb_entry()  argument
60 		__set_ptb_entry(emu, page, addr);  in set_ptb_entry()
64 static inline void set_silent_ptb(struct snd_emu10k1 *emu, int page)  in set_silent_ptb()  argument
70 		__set_ptb_entry(emu, page, emu->silent_page.addr);  in set_silent_ptb()
103 static int search_empty_map_area(struct snd_emu10k1 *emu, int npages, struct list_head **nextp)  in search_empty_map_area()  argument
108 	struct list_head *candidate = &emu->mapped_link_head;  in search_empty_map_area()
111 	list_for_each (pos, &emu->mapped_link_head) {  in search_empty_map_area()
128 	size = (emu->address_mode ? MAX_ALIGN_PAGES1 : MAX_ALIGN_PAGES0) - page;  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()
153 	list_add_tail(&blk->mapped_order_link, &emu->mapped_order_link_head);  in map_memblk()
157 		set_ptb_entry(emu, page, emu->page_addr_table[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()
185 		end_page = (emu->address_mode ? MAX_ALIGN_PAGES1 : MAX_ALIGN_PAGES0);  in unmap_memblk()
193 		set_silent_ptb(emu, mpage);  in unmap_memblk()
206 search_empty(struct snd_emu10k1 *emu, int size)  in search_empty()  argument
214 	list_for_each(p, &emu->memhdr->block) {  in search_empty()
220 	if (page + psize > emu->max_cache_pages)  in search_empty()
225 …blk = (struct snd_emu10k1_memblk *)__snd_util_memblk_new(emu->memhdr, psize << PAGE_SHIFT, p->prev…  in search_empty()
237 static int is_valid_page(struct snd_emu10k1 *emu, dma_addr_t addr)  in is_valid_page()  argument
239 	if (addr & ~emu->dma_mask) {  in is_valid_page()
240 		dev_err(emu->card->dev,  in is_valid_page()
242 			emu->dma_mask, (unsigned long)addr);  in is_valid_page()
246 		dev_err(emu->card->dev, "page is not aligned\n");  in is_valid_page()
258 int snd_emu10k1_memblk_map(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in snd_emu10k1_memblk_map()  argument
266 	spin_lock_irqsave(&emu->memblk_lock, flags);  in snd_emu10k1_memblk_map()
270 			       &emu->mapped_order_link_head);  in snd_emu10k1_memblk_map()
271 		spin_unlock_irqrestore(&emu->memblk_lock, flags);  in snd_emu10k1_memblk_map()
274 	if ((err = map_memblk(emu, blk)) < 0) {  in snd_emu10k1_memblk_map()
277 		p = emu->mapped_order_link_head.next;  in snd_emu10k1_memblk_map()
278 		for (; p != &emu->mapped_order_link_head; p = nextp) {  in snd_emu10k1_memblk_map()
283 			size = unmap_memblk(emu, deleted);  in snd_emu10k1_memblk_map()
286 				err = map_memblk(emu, blk);  in snd_emu10k1_memblk_map()
291 	spin_unlock_irqrestore(&emu->memblk_lock, flags);  in snd_emu10k1_memblk_map()
301 snd_emu10k1_alloc_pages(struct snd_emu10k1 *emu, struct snd_pcm_substream *substream)  in snd_emu10k1_alloc_pages()  argument
308 	if (snd_BUG_ON(!emu))  in snd_emu10k1_alloc_pages()
311 		       runtime->dma_bytes >= (emu->address_mode ? MAXPAGES1 : MAXPAGES0) * EMUPAGESIZE))  in snd_emu10k1_alloc_pages()
313 	hdr = emu->memhdr;  in snd_emu10k1_alloc_pages()
318 					(emu->delay_pcm_irq * 2) : 0;  in snd_emu10k1_alloc_pages()
320 	blk = search_empty(emu, runtime->dma_bytes + idx);  in snd_emu10k1_alloc_pages()
333 			addr = emu->silent_page.addr;  in snd_emu10k1_alloc_pages()
336 		if (! is_valid_page(emu, addr)) {  in snd_emu10k1_alloc_pages()
337 			dev_err(emu->card->dev,  in snd_emu10k1_alloc_pages()
342 		emu->page_addr_table[page] = addr;  in snd_emu10k1_alloc_pages()
343 		emu->page_ptr_table[page] = NULL;  in snd_emu10k1_alloc_pages()
348 	err = snd_emu10k1_memblk_map(emu, 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()
406 snd_emu10k1_synth_free(struct snd_emu10k1 *emu, struct snd_util_memblk *memblk)  in snd_emu10k1_synth_free()  argument
408 	struct snd_util_memhdr *hdr = emu->memhdr;   in snd_emu10k1_synth_free()
413 	spin_lock_irqsave(&emu->memblk_lock, flags);  in snd_emu10k1_synth_free()
415 		unmap_memblk(emu, blk);  in snd_emu10k1_synth_free()
416 	spin_unlock_irqrestore(&emu->memblk_lock, flags);  in snd_emu10k1_synth_free()
417 	synth_free_pages(emu, blk);  in snd_emu10k1_synth_free()
450 static void __synth_free_pages(struct snd_emu10k1 *emu, int first_page,  in __synth_free_pages()  argument
456 		free_page((unsigned long)emu->page_ptr_table[page]);  in __synth_free_pages()
457 		emu->page_addr_table[page] = 0;  in __synth_free_pages()
458 		emu->page_ptr_table[page] = NULL;  in __synth_free_pages()
465 static int synth_alloc_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)  in synth_alloc_pages()  argument
470 	get_single_page_range(emu->memhdr, blk, &first_page, &last_page);  in synth_alloc_pages()
476 		if (!p || (page_to_pfn(p) & ~(emu->dma_mask >> PAGE_SHIFT))) {  in synth_alloc_pages()
485 			__synth_free_pages(emu, first_page, page - 1);  in synth_alloc_pages()
488 		emu->page_addr_table[page] = page_to_phys(p);  in synth_alloc_pages()
489 		emu->page_ptr_table[page] = page_address(p);  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()
502 	__synth_free_pages(emu, first_page, last_page);  in synth_free_pages()
507 static inline void *offset_ptr(struct snd_emu10k1 *emu, int page, int offset)  in offset_ptr()  argument
510 	if (snd_BUG_ON(page < 0 || page >= emu->max_cache_pages))  in offset_ptr()
512 	ptr = emu->page_ptr_table[page];  in offset_ptr()
514 		dev_err(emu->card->dev,  in offset_ptr()
525 int snd_emu10k1_synth_bzero(struct snd_emu10k1 *emu, struct snd_util_memblk *blk,  in snd_emu10k1_synth_bzero()  argument
541 		ptr = offset_ptr(emu, page + p->first_page, offset);  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
571 		ptr = offset_ptr(emu, page + p->first_page, offset);  in snd_emu10k1_synth_copy_from_user()