| 1 | /* SPDX-License-Identifier: MIT */ |
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| 2 | /* |
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| 3 | * Copyright 2025 Advanced Micro Devices, Inc. |
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| 4 | * |
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| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 6 | * copy of this software and associated documentation files (the "Software"), |
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| 7 | * to deal in the Software without restriction, including without limitation |
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| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 10 | * Software is furnished to do so, subject to the following conditions: |
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| 11 | * |
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| 12 | * The above copyright notice and this permission notice shall be included in |
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| 13 | * all copies or substantial portions of the Software. |
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| 14 | * |
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
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| 19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
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| 20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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| 21 | * OTHER DEALINGS IN THE SOFTWARE. |
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| 22 | * |
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| 23 | */ |
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| 24 | #ifndef __RAS_PROCESS_H__ |
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| 25 | #define __RAS_PROCESS_H__ |
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| 26 | |
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| 27 | struct ras_event_req { |
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| 28 | uint64_t seqno; |
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| 29 | uint32_t idx_vf; |
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| 30 | uint32_t block; |
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| 31 | uint16_t pasid; |
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| 32 | uint32_t reset; |
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| 33 | void *pasid_fn; |
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| 34 | void *data; |
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| 35 | }; |
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| 36 | |
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| 37 | struct ras_process { |
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| 38 | void *dev; |
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| 39 | void *ras_process_thread; |
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| 40 | wait_queue_head_t ras_process_wq; |
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| 41 | atomic_t ras_interrupt_req; |
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| 42 | atomic_t umc_interrupt_count; |
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| 43 | struct kfifo event_fifo; |
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| 44 | spinlock_t fifo_spinlock; |
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| 45 | }; |
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| 46 | |
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| 47 | struct ras_core_context; |
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| 48 | int ras_process_init(struct ras_core_context *ras_core); |
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| 49 | int ras_process_fini(struct ras_core_context *ras_core); |
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| 50 | int ras_process_handle_ras_event(struct ras_core_context *ras_core); |
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| 51 | int ras_process_add_interrupt_req(struct ras_core_context *ras_core, |
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| 52 | struct ras_event_req *req, bool is_umc); |
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| 53 | #endif |
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| 54 | |
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