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The hardware mailboxes are used by the driver to submit requests to firmware and receive the completion notices from hardware. Initially, a management mailbox channel is up and running. The driver may request firmware to create/destroy more channels dynamically through management channel. Add driver internal mailbox interfaces. - create/destroy a mailbox channel instance - send a message to the firmware through a specific channel - wait for a notification from the specific channel Co-developed-by: George Yang <George.Yang@amd.com> Signed-off-by: George Yang <George.Yang@amd.com> Co-developed-by: Min Ma <min.ma@amd.com> Signed-off-by: Min Ma <min.ma@amd.com> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-4-lizhi.hou@amd.com
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2023-2024, Advanced Micro Devices, Inc.
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*/
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#ifndef _AMDXDNA_MAILBOX_HELPER_H
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#define _AMDXDNA_MAILBOX_HELPER_H
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#define TX_TIMEOUT 2000 /* milliseconds */
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#define RX_TIMEOUT 5000 /* milliseconds */
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struct amdxdna_dev;
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struct xdna_notify {
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struct completion comp;
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u32 *data;
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size_t size;
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int error;
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};
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#define DECLARE_XDNA_MSG_COMMON(name, op, status) \
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struct name##_req req = { 0 }; \
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struct name##_resp resp = { status }; \
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struct xdna_notify hdl = { \
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.error = 0, \
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.data = (u32 *)&resp, \
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.size = sizeof(resp), \
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.comp = COMPLETION_INITIALIZER_ONSTACK(hdl.comp), \
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}; \
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struct xdna_mailbox_msg msg = { \
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.send_data = (u8 *)&req, \
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.send_size = sizeof(req), \
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.handle = &hdl, \
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.opcode = op, \
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.notify_cb = xdna_msg_cb, \
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}
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int xdna_msg_cb(void *handle, const u32 *data, size_t size);
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int xdna_send_msg_wait(struct amdxdna_dev *xdna, struct mailbox_channel *chann,
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struct xdna_mailbox_msg *msg);
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#endif /* _AMDXDNA_MAILBOX_HELPER_H */
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