d2912cb15b
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>
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2016 Broadcom
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*
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* Common header for Broadcom mailbox messages which is shared across
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* Broadcom SoCs and Broadcom mailbox client drivers.
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*/
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#ifndef _LINUX_BRCM_MESSAGE_H_
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#define _LINUX_BRCM_MESSAGE_H_
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#include <linux/scatterlist.h>
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enum brcm_message_type {
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BRCM_MESSAGE_UNKNOWN = 0,
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BRCM_MESSAGE_BATCH,
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BRCM_MESSAGE_SPU,
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BRCM_MESSAGE_SBA,
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BRCM_MESSAGE_MAX,
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};
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struct brcm_sba_command {
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u64 cmd;
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u64 *cmd_dma;
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dma_addr_t cmd_dma_addr;
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#define BRCM_SBA_CMD_TYPE_A BIT(0)
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#define BRCM_SBA_CMD_TYPE_B BIT(1)
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#define BRCM_SBA_CMD_TYPE_C BIT(2)
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#define BRCM_SBA_CMD_HAS_RESP BIT(3)
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#define BRCM_SBA_CMD_HAS_OUTPUT BIT(4)
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u64 flags;
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dma_addr_t resp;
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size_t resp_len;
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dma_addr_t data;
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size_t data_len;
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};
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struct brcm_message {
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enum brcm_message_type type;
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union {
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struct {
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struct brcm_message *msgs;
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unsigned int msgs_queued;
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unsigned int msgs_count;
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} batch;
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struct {
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struct scatterlist *src;
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struct scatterlist *dst;
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} spu;
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struct {
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struct brcm_sba_command *cmds;
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unsigned int cmds_count;
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} sba;
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};
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void *ctx;
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int error;
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};
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#endif /* _LINUX_BRCM_MESSAGE_H_ */
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