[deliverable/linux.git] / sound / soc / intel / common / sst-dsp-priv.h

/*
 * Intel Smart Sound Technology
 *
 * Copyright (C) 2013, Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License version
 * 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */

#ifndef __SOUND_SOC_SST_DSP_PRIV_H
#define __SOUND_SOC_SST_DSP_PRIV_H

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/interrupt.h>
#include <linux/firmware.h>

struct sst_mem_block;
struct sst_module;
struct sst_fw;

/* do we need to remove or keep */
#define DSP_DRAM_ADDR_OFFSET		0x400000

/*
 * DSP Operations exported by platform Audio DSP driver.
 */
struct sst_ops {
	/* DSP core boot / reset */
	void (*boot)(struct sst_dsp *);
	void (*reset)(struct sst_dsp *);
	int (*wake)(struct sst_dsp *);
	void (*sleep)(struct sst_dsp *);
	void (*stall)(struct sst_dsp *);

	/* Shim IO */
	void (*write)(void __iomem *addr, u32 offset, u32 value);
	u32 (*read)(void __iomem *addr, u32 offset);
	void (*write64)(void __iomem *addr, u32 offset, u64 value);
	u64 (*read64)(void __iomem *addr, u32 offset);

	/* DSP I/DRAM IO */
	void (*ram_read)(struct sst_dsp *sst, void  *dest, void __iomem *src,
		size_t bytes);
	void (*ram_write)(struct sst_dsp *sst, void __iomem *dest, void *src,
		size_t bytes);

	void (*dump)(struct sst_dsp *);

	/* IRQ handlers */
	irqreturn_t (*irq_handler)(int irq, void *context);

	/* SST init and free */
	int (*init)(struct sst_dsp *sst, struct sst_pdata *pdata);
	void (*free)(struct sst_dsp *sst);

	/* FW module parser/loader */
	int (*parse_fw)(struct sst_fw *sst_fw);
};

/*
 * Audio DSP memory offsets and addresses.
 */
struct sst_addr {
	u32 lpe_base;
	u32 shim_offset;
	u32 iram_offset;
	u32 dram_offset;
	u32 dsp_iram_offset;
	u32 dsp_dram_offset;
	void __iomem *lpe;
	void __iomem *shim;
	void __iomem *pci_cfg;
	void __iomem *fw_ext;
};

/*
 * Audio DSP Mailbox configuration.
 */
struct sst_mailbox {
	void __iomem *in_base;
	void __iomem *out_base;
	size_t in_size;
	size_t out_size;
};

/*
 * Audio DSP memory block types.
 */
enum sst_mem_type {
	SST_MEM_IRAM = 0,
	SST_MEM_DRAM = 1,
	SST_MEM_ANY  = 2,
	SST_MEM_CACHE= 3,
};

/*
 * Audio DSP Generic Firmware File.
 *
 * SST Firmware files can consist of 1..N modules. This generic structure is
 * used to manage each firmware file and it's modules regardless of SST firmware
 * type. A SST driver may load multiple FW files.
 */
struct sst_fw {
	struct sst_dsp *dsp;

	/* base addresses of FW file data */
	dma_addr_t dmable_fw_paddr;	/* physical address of fw data */
	void *dma_buf;			/* virtual address of fw data */
	u32 size;			/* size of fw data */

	/* lists */
	struct list_head list;		/* DSP list of FW */
	struct list_head module_list;	/* FW list of modules */

	void *private;			/* core doesn't touch this */
};

/*
 * Audio DSP Generic Module Template.
 *
 * Used to define and register a new FW module. This data is extracted from
 * FW module header information.
 */
struct sst_module_template {
	u32 id;
	u32 entry;			/* entry point */
	u32 scratch_size;
	u32 persistent_size;
};

/*
 * Block Allocator - Used to allocate blocks of DSP memory.
 */
struct sst_block_allocator {
	u32 id;
	u32 offset;
	int size;
	enum sst_mem_type type;
};

/*
 * Runtime Module Instance - A module object can be instanciated multiple
 * times within the DSP FW.
 */
struct sst_module_runtime {
	struct sst_dsp *dsp;
	int id;
	struct sst_module *module;	/* parent module we belong too */

	u32 persistent_offset;		/* private memory offset */
	void *private;

	struct list_head list;
	struct list_head block_list;	/* list of blocks used */
};

/*
 * Runtime Module Context - The runtime context must be manually stored by the
 * driver prior to enter S3 and restored after leaving S3. This should really be
 * part of the memory context saved by the enter D3 message IPC ???
 */
struct sst_module_runtime_context {
	dma_addr_t dma_buffer;
	u32 *buffer;
};

/*
 * Audio DSP Module State
 */
enum sst_module_state {
	SST_MODULE_STATE_UNLOADED = 0,	/* default state */
	SST_MODULE_STATE_LOADED,
	SST_MODULE_STATE_INITIALIZED,	/* and inactive */
	SST_MODULE_STATE_ACTIVE,
};

/*
 * Audio DSP Generic Module.
 *
 * Each Firmware file can consist of 1..N modules. A module can span multiple
 * ADSP memory blocks. The simplest FW will be a file with 1 module. A module
 * can be instanciated multiple times in the DSP.
 */
struct sst_module {
	struct sst_dsp *dsp;
	struct sst_fw *sst_fw;		/* parent FW we belong too */

	/* module configuration */
	u32 id;
	u32 entry;			/* module entry point */
	s32 offset;			/* module offset in firmware file */
	u32 size;			/* module size */
	u32 scratch_size;		/* global scratch memory required */
	u32 persistent_size;		/* private memory required */
	enum sst_mem_type type;		/* destination memory type */
	u32 data_offset;		/* offset in ADSP memory space */
	void *data;			/* module data */

	/* runtime */
	u32 usage_count;		/* can be unloaded if count == 0 */
	void *private;			/* core doesn't touch this */

	/* lists */
	struct list_head block_list;	/* Module list of blocks in use */
	struct list_head list;		/* DSP list of modules */
	struct list_head list_fw;	/* FW list of modules */
	struct list_head runtime_list;	/* list of runtime module objects*/

	/* state */
	enum sst_module_state state;
};

/*
 * SST Memory Block operations.
 */
struct sst_block_ops {
	int (*enable)(struct sst_mem_block *block);
	int (*disable)(struct sst_mem_block *block);
};

/*
 * SST Generic Memory Block.
 *
 * SST ADP  memory has multiple IRAM and DRAM blocks. Some ADSP blocks can be
 * power gated.
 */
struct sst_mem_block {
	struct sst_dsp *dsp;
	struct sst_module *module;	/* module that uses this block */

	/* block config */
	u32 offset;			/* offset from base */
	u32 size;			/* block size */
	u32 index;			/* block index 0..N */
	enum sst_mem_type type;		/* block memory type IRAM/DRAM */
	struct sst_block_ops *ops;	/* block operations, if any */

	/* block status */
	u32 bytes_used;			/* bytes in use by modules */
	void *private;			/* generic core does not touch this */
	int users;			/* number of modules using this block */

	/* block lists */
	struct list_head module_list;	/* Module list of blocks */
	struct list_head list;		/* Map list of free/used blocks */
};

/*
 * Generic SST Shim Interface.
 */
struct sst_dsp {

	/* runtime */
	struct sst_dsp_device *sst_dev;
	spinlock_t spinlock;	/* IPC locking */
	struct mutex mutex;	/* DSP FW lock */
	struct device *dev;
	struct device *dma_dev;
	void *thread_context;
	int irq;
	u32 id;

	/* list of free and used ADSP memory blocks */
	struct list_head used_block_list;
	struct list_head free_block_list;

	/* operations */
	struct sst_ops *ops;

	/* debug FS */
	struct dentry *debugfs_root;

	/* base addresses */
	struct sst_addr addr;

	/* mailbox */
	struct sst_mailbox mailbox;

	/* SST FW files loaded and their modules */
	struct list_head module_list;
	struct list_head fw_list;

	/* scratch buffer */
	struct list_head scratch_block_list;
	u32 scratch_offset;
	u32 scratch_size;

	/* platform data */
	struct sst_pdata *pdata;

	/* DMA FW loading */
	struct sst_dma *dma;
	bool fw_use_dma;
};

/* Size optimised DRAM/IRAM memcpy */
static inline void sst_dsp_write(struct sst_dsp *sst, void *src,
	u32 dest_offset, size_t bytes)
{
	sst->ops->ram_write(sst, sst->addr.lpe + dest_offset, src, bytes);
}

static inline void sst_dsp_read(struct sst_dsp *sst, void *dest,
	u32 src_offset, size_t bytes)
{
	sst->ops->ram_read(sst, dest, sst->addr.lpe + src_offset, bytes);
}

static inline void *sst_dsp_get_thread_context(struct sst_dsp *sst)
{
	return sst->thread_context;
}

/* Create/Free FW files - can contain multiple modules */
struct sst_fw *sst_fw_new(struct sst_dsp *dsp,
	const struct firmware *fw, void *private);
void sst_fw_free(struct sst_fw *sst_fw);
void sst_fw_free_all(struct sst_dsp *dsp);
int sst_fw_reload(struct sst_fw *sst_fw);
void sst_fw_unload(struct sst_fw *sst_fw);

/* Create/Free firmware modules */
struct sst_module *sst_module_new(struct sst_fw *sst_fw,
	struct sst_module_template *template, void *private);
void sst_module_free(struct sst_module *module);
struct sst_module *sst_module_get_from_id(struct sst_dsp *dsp, u32 id);
int sst_module_alloc_blocks(struct sst_module *module);
int sst_module_free_blocks(struct sst_module *module);

/* Create/Free firmware module runtime instances */
struct sst_module_runtime *sst_module_runtime_new(struct sst_module *module,
	int id, void *private);
void sst_module_runtime_free(struct sst_module_runtime *runtime);
struct sst_module_runtime *sst_module_runtime_get_from_id(
	struct sst_module *module, u32 id);
int sst_module_runtime_alloc_blocks(struct sst_module_runtime *runtime,
	int offset);
int sst_module_runtime_free_blocks(struct sst_module_runtime *runtime);
int sst_module_runtime_save(struct sst_module_runtime *runtime,
	struct sst_module_runtime_context *context);
int sst_module_runtime_restore(struct sst_module_runtime *runtime,
	struct sst_module_runtime_context *context);

/* generic block allocation */
int sst_alloc_blocks(struct sst_dsp *dsp, struct sst_block_allocator *ba,
	struct list_head *block_list);
int sst_free_blocks(struct sst_dsp *dsp, struct list_head *block_list);

/* scratch allocation */
int sst_block_alloc_scratch(struct sst_dsp *dsp);
void sst_block_free_scratch(struct sst_dsp *dsp);

/* Register the DSPs memory blocks - would be nice to read from ACPI */
struct sst_mem_block *sst_mem_block_register(struct sst_dsp *dsp, u32 offset,
	u32 size, enum sst_mem_type type, struct sst_block_ops *ops, u32 index,
	void *private);
void sst_mem_block_unregister_all(struct sst_dsp *dsp);

/* Create/Free DMA resources */
int sst_dma_new(struct sst_dsp *sst);
void sst_dma_free(struct sst_dma *dma);

u32 sst_dsp_get_offset(struct sst_dsp *dsp, u32 offset,
	enum sst_mem_type type);
#endif
Commit	Line	Data
a4b12990 MB	1	/*
	2	* Intel Smart Sound Technology
	3	*
	4	* Copyright (C) 2013, Intel Corporation. All rights reserved.
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License version
	8	* 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	*/
	16
	17	#ifndef __SOUND_SOC_SST_DSP_PRIV_H
	18	#define __SOUND_SOC_SST_DSP_PRIV_H
	19
	20	#include <linux/kernel.h>
	21	#include <linux/types.h>
	22	#include <linux/interrupt.h>
	23	#include <linux/firmware.h>
	24
	25	struct sst_mem_block;
	26	struct sst_module;
	27	struct sst_fw;
	28
e9600bc1 LG	29	/* do we need to remove or keep */
	30	#define DSP_DRAM_ADDR_OFFSET 0x400000
	31
a4b12990 MB	32	/*
	33	* DSP Operations exported by platform Audio DSP driver.
	34	*/
	35	struct sst_ops {
	36	/* DSP core boot / reset */
	37	void (boot)(struct sst_dsp );
	38	void (reset)(struct sst_dsp );
d96c53a1 LG	39	int (wake)(struct sst_dsp );
	40	void (sleep)(struct sst_dsp );
	41	void (stall)(struct sst_dsp );
a4b12990 MB	42
	43	/* Shim IO */
	44	void (write)(void __iomem addr, u32 offset, u32 value);
	45	u32 (read)(void __iomem addr, u32 offset);
	46	void (write64)(void __iomem addr, u32 offset, u64 value);
	47	u64 (read64)(void __iomem addr, u32 offset);
	48
	49	/* DSP I/DRAM IO */
	50	void (ram_read)(struct sst_dsp sst, void dest, void __iomem src,
	51	size_t bytes);
	52	void (ram_write)(struct sst_dsp sst, void __iomem dest, void src,
	53	size_t bytes);
	54
	55	void (dump)(struct sst_dsp );
	56
	57	/* IRQ handlers */
	58	irqreturn_t (irq_handler)(int irq, void context);
	59
	60	/* SST init and free */
	61	int (init)(struct sst_dsp sst, struct sst_pdata *pdata);
	62	void (free)(struct sst_dsp sst);
	63
	64	/* FW module parser/loader */
	65	int (parse_fw)(struct sst_fw sst_fw);
	66	};
	67
	68	/*
	69	* Audio DSP memory offsets and addresses.
	70	*/
	71	struct sst_addr {
	72	u32 lpe_base;
	73	u32 shim_offset;
	74	u32 iram_offset;
	75	u32 dram_offset;
e9600bc1 LG	76	u32 dsp_iram_offset;
e9600bc1 LG	77	u32 dsp_dram_offset;
a4b12990 MB	78	void __iomem *lpe;
	79	void __iomem *shim;
	80	void __iomem *pci_cfg;
	81	void __iomem *fw_ext;
	82	};
	83
	84	/*
	85	* Audio DSP Mailbox configuration.
	86	*/
	87	struct sst_mailbox {
	88	void __iomem *in_base;
	89	void __iomem *out_base;
	90	size_t in_size;
	91	size_t out_size;
	92	};
	93
a4b12990 MB	94	/*
	95	* Audio DSP memory block types.
	96	*/
	97	enum sst_mem_type {
	98	SST_MEM_IRAM = 0,
	99	SST_MEM_DRAM = 1,
	100	SST_MEM_ANY = 2,
	101	SST_MEM_CACHE= 3,
	102	};
	103
	104	/*
	105	* Audio DSP Generic Firmware File.
	106	*
	107	* SST Firmware files can consist of 1..N modules. This generic structure is
	108	* used to manage each firmware file and it's modules regardless of SST firmware
	109	* type. A SST driver may load multiple FW files.
	110	*/
	111	struct sst_fw {
	112	struct sst_dsp *dsp;
	113
	114	/* base addresses of FW file data */
	115	dma_addr_t dmable_fw_paddr; /* physical address of fw data */
	116	void dma_buf; / virtual address of fw data */
	117	u32 size; /* size of fw data */
	118
	119	/* lists */
	120	struct list_head list; /* DSP list of FW */
	121	struct list_head module_list; /* FW list of modules */
	122
	123	void private; / core doesn't touch this */
	124	};
	125
a4b12990 MB	126	/*
	127	* Audio DSP Generic Module Template.
	128	*
	129	* Used to define and register a new FW module. This data is extracted from
	130	* FW module header information.
	131	*/
	132	struct sst_module_template {
	133	u32 id;
	134	u32 entry; /* entry point */
e9600bc1 LG	135	u32 scratch_size;
	136	u32 persistent_size;
	137	};
	138
	139	/*
	140	* Block Allocator - Used to allocate blocks of DSP memory.
	141	*/
	142	struct sst_block_allocator {
	143	u32 id;
	144	u32 offset;
	145	int size;
	146	enum sst_mem_type type;
	147	};
	148
	149	/*
	150	* Runtime Module Instance - A module object can be instanciated multiple
	151	* times within the DSP FW.
	152	*/
	153	struct sst_module_runtime {
	154	struct sst_dsp *dsp;
	155	int id;
	156	struct sst_module module; / parent module we belong too */
	157
	158	u32 persistent_offset; /* private memory offset */
	159	void *private;
	160
	161	struct list_head list;
	162	struct list_head block_list; /* list of blocks used */
	163	};
	164
	165	/*
	166	* Runtime Module Context - The runtime context must be manually stored by the
	167	* driver prior to enter S3 and restored after leaving S3. This should really be
	168	* part of the memory context saved by the enter D3 message IPC ???
	169	*/
	170	struct sst_module_runtime_context {
	171	dma_addr_t dma_buffer;
	172	u32 *buffer;
a4b12990 MB	173	};
a4b12990 MB	174
9449d39b LH	175	/*
	176	* Audio DSP Module State
	177	*/
	178	enum sst_module_state {
	179	SST_MODULE_STATE_UNLOADED = 0, /* default state */
	180	SST_MODULE_STATE_LOADED,
	181	SST_MODULE_STATE_INITIALIZED, /* and inactive */
	182	SST_MODULE_STATE_ACTIVE,
	183	};
	184
a4b12990 MB	185	/*
	186	* Audio DSP Generic Module.
	187	*
	188	* Each Firmware file can consist of 1..N modules. A module can span multiple
e9600bc1 LG	189	* ADSP memory blocks. The simplest FW will be a file with 1 module. A module
e9600bc1 LG	190	* can be instanciated multiple times in the DSP.
a4b12990 MB	191	*/
	192	struct sst_module {
	193	struct sst_dsp *dsp;
	194	struct sst_fw sst_fw; / parent FW we belong too */
	195
	196	/* module configuration */
	197	u32 id;
	198	u32 entry; /* module entry point */
e9600bc1	199	s32 offset; /* module offset in firmware file */
a4b12990	200	u32 size; /* module size */
e9600bc1 LG	201	u32 scratch_size; /* global scratch memory required */
	202	u32 persistent_size; /* private memory required */
	203	enum sst_mem_type type; /* destination memory type */
	204	u32 data_offset; /* offset in ADSP memory space */
	205	void data; / module data */
a4b12990 MB	206
	207	/* runtime */
	208	u32 usage_count; /* can be unloaded if count == 0 */
	209	void private; / core doesn't touch this */
	210
	211	/* lists */
	212	struct list_head block_list; /* Module list of blocks in use */
	213	struct list_head list; /* DSP list of modules */
	214	struct list_head list_fw; /* FW list of modules */
e9600bc1	215	struct list_head runtime_list; /* list of runtime module objects*/
9449d39b LH	216
	217	/* state */
	218	enum sst_module_state state;
a4b12990 MB	219	};
	220
	221	/*
	222	* SST Memory Block operations.
	223	*/
	224	struct sst_block_ops {
	225	int (enable)(struct sst_mem_block block);
	226	int (disable)(struct sst_mem_block block);
	227	};
	228
	229	/*
	230	* SST Generic Memory Block.
	231	*
	232	* SST ADP memory has multiple IRAM and DRAM blocks. Some ADSP blocks can be
	233	* power gated.
	234	*/
	235	struct sst_mem_block {
	236	struct sst_dsp *dsp;
	237	struct sst_module module; / module that uses this block */
	238
	239	/* block config */
	240	u32 offset; /* offset from base */
	241	u32 size; /* block size */
	242	u32 index; /* block index 0..N */
	243	enum sst_mem_type type; /* block memory type IRAM/DRAM */
	244	struct sst_block_ops ops; / block operations, if any */
	245
	246	/* block status */
a4b12990 MB	247	u32 bytes_used; /* bytes in use by modules */
	248	void private; / generic core does not touch this */
	249	int users; /* number of modules using this block */
	250
	251	/* block lists */
	252	struct list_head module_list; /* Module list of blocks */
	253	struct list_head list; /* Map list of free/used blocks */
	254	};
	255
	256	/*
	257	* Generic SST Shim Interface.
	258	*/
	259	struct sst_dsp {
	260
	261	/* runtime */
	262	struct sst_dsp_device *sst_dev;
	263	spinlock_t spinlock; /* IPC locking */
	264	struct mutex mutex; /* DSP FW lock */
	265	struct device *dev;
10df3509	266	struct device *dma_dev;
a4b12990 MB	267	void *thread_context;
	268	int irq;
	269	u32 id;
	270
	271	/* list of free and used ADSP memory blocks */
	272	struct list_head used_block_list;
	273	struct list_head free_block_list;
	274
	275	/* operations */
	276	struct sst_ops *ops;
	277
	278	/* debug FS */
	279	struct dentry *debugfs_root;
	280
	281	/* base addresses */
	282	struct sst_addr addr;
	283
	284	/* mailbox */
	285	struct sst_mailbox mailbox;
	286
	287	/* SST FW files loaded and their modules */
	288	struct list_head module_list;
	289	struct list_head fw_list;
	290
e9600bc1 LG	291	/* scratch buffer */
	292	struct list_head scratch_block_list;
	293	u32 scratch_offset;
	294	u32 scratch_size;
	295
a4b12990 MB	296	/* platform data */
	297	struct sst_pdata *pdata;
	298
	299	/* DMA FW loading */
	300	struct sst_dma *dma;
	301	bool fw_use_dma;
	302	};
	303
	304	/* Size optimised DRAM/IRAM memcpy */
	305	static inline void sst_dsp_write(struct sst_dsp sst, void src,
	306	u32 dest_offset, size_t bytes)
	307	{
	308	sst->ops->ram_write(sst, sst->addr.lpe + dest_offset, src, bytes);
	309	}
	310
	311	static inline void sst_dsp_read(struct sst_dsp sst, void dest,
	312	u32 src_offset, size_t bytes)
	313	{
	314	sst->ops->ram_read(sst, dest, sst->addr.lpe + src_offset, bytes);
	315	}
	316
	317	static inline void sst_dsp_get_thread_context(struct sst_dsp sst)
	318	{
	319	return sst->thread_context;
	320	}
	321
	322	/* Create/Free FW files - can contain multiple modules */
	323	struct sst_fw sst_fw_new(struct sst_dsp dsp,
	324	const struct firmware fw, void private);
	325	void sst_fw_free(struct sst_fw *sst_fw);
	326	void sst_fw_free_all(struct sst_dsp *dsp);
555f8a80 LG	327	int sst_fw_reload(struct sst_fw *sst_fw);
555f8a80 LG	328	void sst_fw_unload(struct sst_fw *sst_fw);
a4b12990 MB	329
	330	/* Create/Free firmware modules */
	331	struct sst_module sst_module_new(struct sst_fw sst_fw,
	332	struct sst_module_template template, void private);
e9600bc1	333	void sst_module_free(struct sst_module *module);
a4b12990	334	struct sst_module sst_module_get_from_id(struct sst_dsp dsp, u32 id);
e9600bc1 LG	335	int sst_module_alloc_blocks(struct sst_module *module);
	336	int sst_module_free_blocks(struct sst_module *module);
	337
	338	/* Create/Free firmware module runtime instances */
	339	struct sst_module_runtime sst_module_runtime_new(struct sst_module module,
	340	int id, void *private);
	341	void sst_module_runtime_free(struct sst_module_runtime *runtime);
	342	struct sst_module_runtime *sst_module_runtime_get_from_id(
	343	struct sst_module *module, u32 id);
	344	int sst_module_runtime_alloc_blocks(struct sst_module_runtime *runtime,
	345	int offset);
	346	int sst_module_runtime_free_blocks(struct sst_module_runtime *runtime);
	347	int sst_module_runtime_save(struct sst_module_runtime *runtime,
	348	struct sst_module_runtime_context *context);
	349	int sst_module_runtime_restore(struct sst_module_runtime *runtime,
	350	struct sst_module_runtime_context *context);
	351
	352	/* generic block allocation */
	353	int sst_alloc_blocks(struct sst_dsp dsp, struct sst_block_allocator ba,
	354	struct list_head *block_list);
	355	int sst_free_blocks(struct sst_dsp dsp, struct list_head block_list);
	356
	357	/* scratch allocation */
	358	int sst_block_alloc_scratch(struct sst_dsp *dsp);
	359	void sst_block_free_scratch(struct sst_dsp *dsp);
a4b12990 MB	360
	361	/* Register the DSPs memory blocks - would be nice to read from ACPI */
	362	struct sst_mem_block sst_mem_block_register(struct sst_dsp dsp, u32 offset,
	363	u32 size, enum sst_mem_type type, struct sst_block_ops *ops, u32 index,
	364	void *private);
	365	void sst_mem_block_unregister_all(struct sst_dsp *dsp);
	366
e9600bc1 LG	367	/* Create/Free DMA resources */
	368	int sst_dma_new(struct sst_dsp *sst);
	369	void sst_dma_free(struct sst_dma *dma);
	370
	371	u32 sst_dsp_get_offset(struct sst_dsp *dsp, u32 offset,
	372	enum sst_mem_type type);
a4b12990	373	#endif