sound/core/memalloc.c

43  * snd_dma_alloc_dir_pages - allocate the buffer area according to the given
73 	dmab->area = __snd_dma_alloc_pages(dmab, size);
74 	if (!dmab->area)
82  * snd_dma_alloc_pages_fallback - allocate the buffer area according to the given type with fallback
109 	if (! dmab->area)
181  * @area: VM area information
186 			struct vm_area_struct *area)
194 		return ops->mmap(dmab, area);
252 		return virt_to_page(dmab->area + offset);
327 	do_free_pages(dmab->area, dmab->bytes, false);
331 				   struct vm_area_struct *area)
333 	return remap_pfn_range(area, area->vm_start,
335 			       area->vm_end - area->vm_start,
336 			       area->vm_page_prot);
355 	vfree(dmab->area);
359 				struct vm_area_struct *area)
361 	return remap_vmalloc_range(area, dmab->area, 0);
365 	page_to_phys(vmalloc_to_page((dmab)->area + (offset)))
376 	return vmalloc_to_page(dmab->area + offset);
443 	if (pool && dmab->area)
444 		gen_pool_free(pool, (unsigned long)dmab->area, dmab->bytes);
448 			     struct vm_area_struct *area)
450 	area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
451 	return remap_pfn_range(area, area->vm_start,
453 			       area->vm_end - area->vm_start,
454 			       area->vm_page_prot);
474 	dma_free_coherent(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr);
478 			    struct vm_area_struct *area)
480 	return dma_mmap_coherent(dmab->dev.dev, area,
481 				 dmab->area, dmab->addr, dmab->bytes);
502 	do_free_pages(dmab->area, dmab->bytes, true);
506 			   struct vm_area_struct *area)
508 	area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
509 	return snd_dma_continuous_mmap(dmab, area);
519 	dma_free_wc(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr);
523 			   struct vm_area_struct *area)
525 	return dma_mmap_wc(dmab->dev.dev, area,
526 			   dmab->area, dmab->addr, dmab->bytes);
572 	dma_vunmap_noncontiguous(dmab->dev.dev, dmab->area);
578 				  struct vm_area_struct *area)
580 	return dma_mmap_noncontiguous(dmab->dev.dev, area,
590 		invalidate_kernel_vmap_range(dmab->area, dmab->bytes);
596 		flush_kernel_vmap_range(dmab->area, dmab->bytes);
700 			      struct vm_area_struct *area)
702 	area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
703 	return dma_mmap_noncontiguous(dmab->dev.dev, area,
832 	vunmap(dmab->area);
846 				    struct vm_area_struct *area)
851 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
852 	return vm_map_pages(area, sgbuf->pages, sgbuf->count);
882 	dma_free_noncoherent(dmab->dev.dev, dmab->bytes, dmab->area,
887 				    struct vm_area_struct *area)
889 	area->vm_page_prot = vm_get_page_prot(area->vm_flags);
890 	return dma_mmap_pages(dmab->dev.dev, area,
891 			      area->vm_end - area->vm_start,
892 			      virt_to_page(dmab->area));