Lines Matching refs:emu
35 #define __set_ptb_entry(emu,page,addr) \
36 (((u32 *)(emu)->ptb_pages.area)[page] = cpu_to_le32(((addr) << 1) | (page)))
48 #define set_ptb_entry(emu,page,addr) __set_ptb_entry(emu,page,addr)
50 #define set_silent_ptb(emu,page) __set_ptb_entry(emu,page,emu->silent_page.addr)
53 static inline void set_ptb_entry(struct snd_emu10k1 *emu, int page, dma_addr_t addr)
58 __set_ptb_entry(emu, page, addr);
62 static inline void set_silent_ptb(struct snd_emu10k1 *emu, int page)
68 __set_ptb_entry(emu, page, emu->silent_page.addr);
101 static int search_empty_map_area(struct snd_emu10k1 *emu, int npages, struct list_head **nextp)
106 struct list_head *candidate = &emu->mapped_link_head;
109 list_for_each (pos, &emu->mapped_link_head) {
139 static int map_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
144 page = search_empty_map_area(emu, blk->pages, &next);
150 list_add_tail(&blk->mapped_order_link, &emu->mapped_order_link_head);
154 set_ptb_entry(emu, page, emu->page_addr_table[pg]);
166 static int unmap_memblk(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
173 if ((p = blk->mapped_link.prev) != &emu->mapped_link_head) {
178 if ((p = blk->mapped_link.next) != &emu->mapped_link_head) {
190 set_silent_ptb(emu, mpage);
203 search_empty(struct snd_emu10k1 *emu, int size)
211 list_for_each(p, &emu->memhdr->block) {
217 if (page + psize > emu->max_cache_pages)
222 blk = (struct snd_emu10k1_memblk *)__snd_util_memblk_new(emu->memhdr, psize << PAGE_SHIFT, p->prev);
234 static int is_valid_page(struct snd_emu10k1 *emu, dma_addr_t addr)
236 if (addr & ~emu->dma_mask) {
237 snd_printk(KERN_ERR "max memory size is 0x%lx (addr = 0x%lx)!!\n", emu->dma_mask, (unsigned long)addr);
253 int snd_emu10k1_memblk_map(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
261 spin_lock_irqsave(&emu->memblk_lock, flags);
265 list_add_tail(&blk->mapped_order_link, &emu->mapped_order_link_head);
266 spin_unlock_irqrestore(&emu->memblk_lock, flags);
269 if ((err = map_memblk(emu, blk)) < 0) {
272 p = emu->mapped_order_link_head.next;
273 for (; p != &emu->mapped_order_link_head; p = nextp) {
278 size = unmap_memblk(emu, deleted);
281 err = map_memblk(emu, blk);
286 spin_unlock_irqrestore(&emu->memblk_lock, flags);
296 snd_emu10k1_alloc_pages(struct snd_emu10k1 *emu, struct snd_pcm_substream *substream)
304 snd_assert(emu, return NULL);
306 hdr = emu->memhdr;
310 blk = search_empty(emu, runtime->dma_bytes);
323 printk(KERN_ERR "emu: pages overflow! (%d-%d) for %d\n",
330 if (! is_valid_page(emu, addr)) {
331 printk(KERN_ERR "emu: failure page = %d\n", idx);
335 emu->page_addr_table[page] = addr;
336 emu->page_ptr_table[page] = NULL;
341 err = snd_emu10k1_memblk_map(emu, blk);
355 int snd_emu10k1_free_pages(struct snd_emu10k1 *emu, struct snd_util_memblk *blk)
357 snd_assert(emu && blk, return -EINVAL);
358 return snd_emu10k1_synth_free(emu, blk);
398 snd_emu10k1_synth_free(struct snd_emu10k1 *emu, struct snd_util_memblk *memblk)
400 struct snd_util_memhdr *hdr = emu->memhdr;
405 spin_lock_irqsave(&emu->memblk_lock, flags);
407 unmap_memblk(emu, blk);
408 spin_unlock_irqrestore(&emu->memblk_lock, flags);
409 synth_free_pages(emu, blk);
444 static int synth_alloc_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
450 get_single_page_range(emu->memhdr, blk, &first_page, &last_page);
453 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(emu->pci),
456 if (! is_valid_page(emu, dmab.addr)) {
460 emu->page_addr_table[page] = dmab.addr;
461 emu->page_ptr_table[page] = dmab.area;
469 dmab.area = emu->page_ptr_table[page];
470 dmab.addr = emu->page_addr_table[page];
473 emu->page_addr_table[page] = 0;
474 emu->page_ptr_table[page] = NULL;
483 static int synth_free_pages(struct snd_emu10k1 *emu, struct snd_emu10k1_memblk *blk)
488 get_single_page_range(emu->memhdr, blk, &first_page, &last_page);
490 dmab.dev.dev = snd_dma_pci_data(emu->pci);
492 if (emu->page_ptr_table[page] == NULL)
494 dmab.area = emu->page_ptr_table[page];
495 dmab.addr = emu->page_addr_table[page];
498 emu->page_addr_table[page] = 0;
499 emu->page_ptr_table[page] = NULL;
506 static inline void *offset_ptr(struct snd_emu10k1 *emu, int page, int offset)
509 snd_assert(page >= 0 && page < emu->max_cache_pages, return NULL);
510 ptr = emu->page_ptr_table[page];
522 int snd_emu10k1_synth_bzero(struct snd_emu10k1 *emu, struct snd_util_memblk *blk,
538 ptr = offset_ptr(emu, page + p->first_page, offset);
552 int snd_emu10k1_synth_copy_from_user(struct snd_emu10k1 *emu, struct snd_util_memblk *blk,
568 ptr = offset_ptr(emu, page + p->first_page, offset);