27 static void snd_malloc_dev_pages(struct snd_dma_buffer *dmab, size_t size)  in snd_malloc_dev_pages()  argument
35 	dmab->area = dma_alloc_coherent(dmab->dev.dev, size, &dmab->addr,  in snd_malloc_dev_pages()
38 	if (dmab->area && dmab->dev.type == SNDRV_DMA_TYPE_DEV_UC)  in snd_malloc_dev_pages()
39 		set_memory_wc((unsigned long)dmab->area,  in snd_malloc_dev_pages()
45 static void snd_free_dev_pages(struct snd_dma_buffer *dmab)  in snd_free_dev_pages()  argument
48 	if (dmab->dev.type == SNDRV_DMA_TYPE_DEV_UC)  in snd_free_dev_pages()
49 		set_memory_wb((unsigned long)dmab->area,  in snd_free_dev_pages()
50 			      PAGE_ALIGN(dmab->bytes) >> PAGE_SHIFT);  in snd_free_dev_pages()
52 	dma_free_coherent(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr);  in snd_free_dev_pages()
63 static void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size)  in snd_malloc_dev_iram()  argument
65 	struct device *dev = dmab->dev.dev;  in snd_malloc_dev_iram()
68 	dmab->area = NULL;  in snd_malloc_dev_iram()
69 	dmab->addr = 0;  in snd_malloc_dev_iram()
78 	dmab->private_data = pool;  in snd_malloc_dev_iram()
80 	dmab->area = gen_pool_dma_alloc_align(pool, size, &dmab->addr,  in snd_malloc_dev_iram()
88 static void snd_free_dev_iram(struct snd_dma_buffer *dmab)  in snd_free_dev_iram()  argument
90 	struct gen_pool *pool = dmab->private_data;  in snd_free_dev_iram()
92 	if (pool && dmab->area)  in snd_free_dev_iram()
93 		gen_pool_free(pool, (unsigned long)dmab->area, dmab->bytes);  in snd_free_dev_iram()
127 			struct snd_dma_buffer *dmab)  in snd_dma_alloc_pages()  argument
133 	if (WARN_ON(!dmab))  in snd_dma_alloc_pages()
136 	dmab->dev.type = type;  in snd_dma_alloc_pages()
137 	dmab->dev.dev = device;  in snd_dma_alloc_pages()
138 	dmab->bytes = 0;  in snd_dma_alloc_pages()
139 	dmab->area = NULL;  in snd_dma_alloc_pages()
140 	dmab->addr = 0;  in snd_dma_alloc_pages()
141 	dmab->private_data = NULL;  in snd_dma_alloc_pages()
145 		dmab->area = alloc_pages_exact(size, gfp);  in snd_dma_alloc_pages()
149 		dmab->area = __vmalloc(size, gfp);  in snd_dma_alloc_pages()
154 		snd_malloc_dev_iram(dmab, size);  in snd_dma_alloc_pages()
155 		if (dmab->area)  in snd_dma_alloc_pages()
160 		dmab->dev.type = SNDRV_DMA_TYPE_DEV;  in snd_dma_alloc_pages()
165 		snd_malloc_dev_pages(dmab, size);  in snd_dma_alloc_pages()
171 		snd_malloc_sgbuf_pages(device, size, dmab, NULL);  in snd_dma_alloc_pages()
178 	if (! dmab->area)  in snd_dma_alloc_pages()
180 	dmab->bytes = size;  in snd_dma_alloc_pages()
201 				 struct snd_dma_buffer *dmab)  in snd_dma_alloc_pages_fallback()  argument
205 	while ((err = snd_dma_alloc_pages(type, device, size, dmab)) < 0) {  in snd_dma_alloc_pages_fallback()
213 	if (! dmab->area)  in snd_dma_alloc_pages_fallback()
226 void snd_dma_free_pages(struct snd_dma_buffer *dmab)  in snd_dma_free_pages()  argument
228 	switch (dmab->dev.type) {  in snd_dma_free_pages()
230 		free_pages_exact(dmab->area, dmab->bytes);  in snd_dma_free_pages()
233 		vfree(dmab->area);  in snd_dma_free_pages()
238 		snd_free_dev_iram(dmab);  in snd_dma_free_pages()
243 		snd_free_dev_pages(dmab);  in snd_dma_free_pages()
249 		snd_free_sgbuf_pages(dmab);  in snd_dma_free_pages()
253 		pr_err("snd-malloc: invalid device type %d\n", dmab->dev.type);  in snd_dma_free_pages()