[mirror_ubuntu-bionic-kernel.git] / include / linux / mailbox / brcm-message.h

/*
 *  Copyright (C) 2016 Broadcom
 *
 * 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.
 *
 * Common header for Broadcom mailbox messages which is shared across
 * Broadcom SoCs and Broadcom mailbox client drivers.
 */

#ifndef _LINUX_BRCM_MESSAGE_H_
#define _LINUX_BRCM_MESSAGE_H_

#include <linux/scatterlist.h>

enum brcm_message_type {
	BRCM_MESSAGE_UNKNOWN = 0,
	BRCM_MESSAGE_BATCH,
	BRCM_MESSAGE_SPU,
	BRCM_MESSAGE_SBA,
	BRCM_MESSAGE_MAX,
};

struct brcm_sba_command {
	u64 cmd;
	u64 *cmd_dma;
	dma_addr_t cmd_dma_addr;
#define BRCM_SBA_CMD_TYPE_A		BIT(0)
#define BRCM_SBA_CMD_TYPE_B		BIT(1)
#define BRCM_SBA_CMD_TYPE_C		BIT(2)
#define BRCM_SBA_CMD_HAS_RESP		BIT(3)
#define BRCM_SBA_CMD_HAS_OUTPUT		BIT(4)
	u64 flags;
	dma_addr_t resp;
	size_t resp_len;
	dma_addr_t data;
	size_t data_len;
};

struct brcm_message {
	enum brcm_message_type type;
	union {
		struct {
			struct brcm_message *msgs;
			unsigned int msgs_queued;
			unsigned int msgs_count;
		} batch;
		struct {
			struct scatterlist *src;
			struct scatterlist *dst;
		} spu;
		struct {
			struct brcm_sba_command *cmds;
			unsigned int cmds_count;
		} sba;
	};
	void *ctx;
	int error;
};

#endif /* _LINUX_BRCM_MESSAGE_H_ */
Commit	Line	Data
a24532f8 RR	1	/*
	2	* Copyright (C) 2016 Broadcom
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*
	8	* Common header for Broadcom mailbox messages which is shared across
	9	* Broadcom SoCs and Broadcom mailbox client drivers.
	10	*/
	11
	12	#ifndef _LINUX_BRCM_MESSAGE_H_
	13	#define _LINUX_BRCM_MESSAGE_H_
	14
	15	#include <linux/scatterlist.h>
	16
	17	enum brcm_message_type {
	18	BRCM_MESSAGE_UNKNOWN = 0,
dbc049ee	19	BRCM_MESSAGE_BATCH,
a24532f8 RR	20	BRCM_MESSAGE_SPU,
	21	BRCM_MESSAGE_SBA,
	22	BRCM_MESSAGE_MAX,
	23	};
	24
	25	struct brcm_sba_command {
	26	u64 cmd;
dbc049ee AP	27	u64 *cmd_dma;
dbc049ee AP	28	dma_addr_t cmd_dma_addr;
a24532f8 RR	29	#define BRCM_SBA_CMD_TYPE_A BIT(0)
	30	#define BRCM_SBA_CMD_TYPE_B BIT(1)
	31	#define BRCM_SBA_CMD_TYPE_C BIT(2)
	32	#define BRCM_SBA_CMD_HAS_RESP BIT(3)
	33	#define BRCM_SBA_CMD_HAS_OUTPUT BIT(4)
	34	u64 flags;
a24532f8 RR	35	dma_addr_t resp;
a24532f8 RR	36	size_t resp_len;
dbc049ee AP	37	dma_addr_t data;
dbc049ee AP	38	size_t data_len;
a24532f8 RR	39	};
	40
	41	struct brcm_message {
	42	enum brcm_message_type type;
	43	union {
dbc049ee AP	44	struct {
	45	struct brcm_message *msgs;
	46	unsigned int msgs_queued;
	47	unsigned int msgs_count;
	48	} batch;
a24532f8 RR	49	struct {
	50	struct scatterlist *src;
	51	struct scatterlist *dst;
	52	} spu;
	53	struct {
	54	struct brcm_sba_command *cmds;
	55	unsigned int cmds_count;
	56	} sba;
	57	};
	58	void *ctx;
	59	int error;
	60	};
	61
	62	#endif /* _LINUX_BRCM_MESSAGE_H_ */