linux-stable/include/linux/mailbox/brcm-message.h
Thomas Gleixner d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
Based on 2 normalized pattern(s):

  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 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 #

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 4122 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-19 17:09:55 +02:00

59 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2016 Broadcom
*
* 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_ */