sound/core/pcm_memory.c

127  * Releases the pre-allocated buffer of the given substream.
135  * snd_pcm_lib_preallocate_free_for_all - release all pre-allocated buffers on the pcm
138  * Releases all the pre-allocated buffers on the given pcm.
259  * pre-allocate the buffer and create a proc file for the substream
313  * snd_pcm_lib_preallocate_pages - pre-allocation for the given DMA type
317  * @size: the requested pre-allocation size in bytes
318  * @max: the max. allowed pre-allocation size
320  * Do pre-allocation for the given DMA buffer type.
331 …* snd_pcm_lib_preallocate_pages_for_all - pre-allocation for continuous memory type (all substream…
335  * @size: the requested pre-allocation size in bytes
336  * @max: the max. allowed pre-allocation size
338  * Do pre-allocation to all substreams of the given pcm for the
354  * @size: the requested pre-allocation size in bytes
355  * @max: the max. allowed pre-allocation size
357  * Do pre-allocation for the given DMA buffer type, and set the managed
393  * @size: the requested pre-allocation size in bytes
394  * @max: the max. allowed pre-allocation size
396  * Do pre-allocation to all substreams of the given pcm for the specified DMA
446 		dmab = &substream->dma_buffer; /* use the pre-allocated buffer */  in snd_pcm_lib_malloc_pages()