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 27 struct 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 37 struct 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 47 struct ras_core_context; 48 int ras_process_init(struct ras_core_context *ras_core); 49 int ras_process_fini(struct ras_core_context *ras_core); 50 int ras_process_handle_ras_event(struct ras_core_context *ras_core); 51 int ras_process_add_interrupt_req(struct ras_core_context *ras_core, 52 struct ras_event_req *req, bool is_umc); 53 #endif 54