ras_process.h

 1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright 2025 Advanced Micro Devices, Inc.
 4 *
 5 * Permission is hereby granted, free of charge, to any person obtaining a
 6 * copy of this software and associated documentation files (the "Software"),
 7 * to deal in the Software without restriction, including without limitation
 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 */
24#ifndef __RAS_PROCESS_H__
25#define __RAS_PROCESS_H__
26
27struct ras_event_req {
28	uint64_t seqno;
29	uint32_t idx_vf;
30	uint32_t block;
31	uint16_t pasid;
32	uint32_t reset;
33	void *pasid_fn;
34	void *data;
35};
36
37struct ras_process {
38	void *dev;
39	void *ras_process_thread;
40	wait_queue_head_t ras_process_wq;
41	atomic_t ras_interrupt_req;
42	atomic_t umc_interrupt_count;
43	struct kfifo event_fifo;
44	spinlock_t fifo_spinlock;
45};
46
47struct ras_core_context;
48int ras_process_init(struct ras_core_context *ras_core);
49int ras_process_fini(struct ras_core_context *ras_core);
50int ras_process_handle_ras_event(struct ras_core_context *ras_core);
51int ras_process_add_interrupt_req(struct ras_core_context *ras_core,
52		struct ras_event_req *req, bool is_umc);
53#endif