1 files changed, 51 insertions, 12 deletions

diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h
index ae2921d9ddc..782d1df3420 100644
--- a/include/sound/memalloc.h
+++ b/include/sound/memalloc.h
@@ -37,8 +37,7 @@ struct snd_dma_device {
 #ifndef snd_dma_pci_data
 #define snd_dma_pci_data(pci)	(&(pci)->dev)
 #define snd_dma_isa_data()	NULL
-#define snd_dma_sbus_data(sbus)	((struct device *)(sbus))
-#define snd_dma_continuous_data(x)	((struct device *)(unsigned long)(x))
+#define snd_dma_continuous_data(x)	((struct device *)(__force unsigned long)(x))
 #endif
 
 
@@ -48,8 +47,16 @@ struct snd_dma_device {
 #define SNDRV_DMA_TYPE_UNKNOWN		0	/* not defined */
 #define SNDRV_DMA_TYPE_CONTINUOUS	1	/* continuous no-DMA memory */
 #define SNDRV_DMA_TYPE_DEV		2	/* generic device continuous */
+#ifdef CONFIG_SND_DMA_SGBUF
 #define SNDRV_DMA_TYPE_DEV_SG		3	/* generic device SG-buffer */
-#define SNDRV_DMA_TYPE_SBUS		4	/* SBUS continuous */
+#else
+#define SNDRV_DMA_TYPE_DEV_SG	SNDRV_DMA_TYPE_DEV /* no SG-buf support */
+#endif
+#ifdef CONFIG_GENERIC_ALLOCATOR
+#define SNDRV_DMA_TYPE_DEV_IRAM		4	/* generic device iram-buffer */
+#else
+#define SNDRV_DMA_TYPE_DEV_IRAM	SNDRV_DMA_TYPE_DEV
+#endif
 
 /*
  * info for buffer allocation
@@ -62,9 +69,15 @@ struct snd_dma_buffer {
 	void *private_data;	/* private for allocator; don't touch */
 };
 
+#ifdef CONFIG_SND_DMA_SGBUF
 /*
  * Scatter-Gather generic device pages
  */
+void *snd_malloc_sgbuf_pages(struct device *device,
+			     size_t size, struct snd_dma_buffer *dmab,
+			     size_t *res_size);
+int snd_free_sgbuf_pages(struct snd_dma_buffer *dmab);
+
 struct snd_sg_page {
 	void *buf;
 	dma_addr_t addr;
@@ -90,11 +103,44 @@ static inline unsigned int snd_sgbuf_aligned_pages(size_t size)
 /*
  * return the physical address at the corresponding offset
  */
-static inline dma_addr_t snd_sgbuf_get_addr(struct snd_sg_buf *sgbuf, size_t offset)
+static inline dma_addr_t snd_sgbuf_get_addr(struct snd_dma_buffer *dmab,
+					   size_t offset)
+{
+	struct snd_sg_buf *sgbuf = dmab->private_data;
+	dma_addr_t addr = sgbuf->table[offset >> PAGE_SHIFT].addr;
+	addr &= ~((dma_addr_t)PAGE_SIZE - 1);
+	return addr + offset % PAGE_SIZE;
+}
+
+/*
+ * return the virtual address at the corresponding offset
+ */
+static inline void *snd_sgbuf_get_ptr(struct snd_dma_buffer *dmab,
+				     size_t offset)
+{
+	struct snd_sg_buf *sgbuf = dmab->private_data;
+	return sgbuf->table[offset >> PAGE_SHIFT].buf + offset % PAGE_SIZE;
+}
+
+unsigned int snd_sgbuf_get_chunk_size(struct snd_dma_buffer *dmab,
+				      unsigned int ofs, unsigned int size);
+#else
+/* non-SG versions */
+static inline dma_addr_t snd_sgbuf_get_addr(struct snd_dma_buffer *dmab,
+					    size_t offset)
+{
+	return dmab->addr + offset;
+}
+
+static inline void *snd_sgbuf_get_ptr(struct snd_dma_buffer *dmab,
+				      size_t offset)
 {
-	return sgbuf->table[offset >> PAGE_SHIFT].addr + offset % PAGE_SIZE;
+	return dmab->area + offset;
 }
 
+#define snd_sgbuf_get_chunk_size(dmab, ofs, size)	(size)
+
+#endif /* CONFIG_SND_DMA_SGBUF */
 
 /* allocate/release a buffer */
 int snd_dma_alloc_pages(int type, struct device *dev, size_t size,
@@ -103,13 +149,6 @@ int snd_dma_alloc_pages_fallback(int type, struct device *dev, size_t size,
                                  struct snd_dma_buffer *dmab);
 void snd_dma_free_pages(struct snd_dma_buffer *dmab);
 
-/* buffer-preservation managements */
-
-#define snd_dma_pci_buf_id(pci)	(((unsigned int)(pci)->vendor << 16) | (pci)->device)
-
-size_t snd_dma_get_reserved_buf(struct snd_dma_buffer *dmab, unsigned int id);
-int snd_dma_reserve_buf(struct snd_dma_buffer *dmab, unsigned int id);
-
 /* basic memory allocation functions */
 void *snd_malloc_pages(size_t size, gfp_t gfp_flags);
 void snd_free_pages(void *ptr, size_t size);