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
25#include "ras.h"
26#include "ras_nbio.h"
27#include "ras_nbio_v7_9.h"
28
29static const struct ras_nbio_ip_func *ras_nbio_get_ip_funcs(
30 struct ras_core_context *ras_core, uint32_t ip_version)
31{
32 switch (ip_version) {
33 case IP_VERSION(7, 9, 0):
34 case IP_VERSION(7, 9, 1):
35 return &ras_nbio_v7_9;
36 default:
37 RAS_DEV_ERR(ras_core->dev,
38 "NBIO ip version(0x%x) is not supported!\n", ip_version);
39 break;
40 }
41
42 return NULL;
43}
44
45int ras_nbio_hw_init(struct ras_core_context *ras_core)
46{
47 struct ras_nbio *nbio = &ras_core->ras_nbio;
48
49 nbio->nbio_ip_version = ras_core->config->nbio_ip_version;
50 nbio->sys_func = ras_core->config->nbio_cfg.nbio_sys_fn;
51 if (!nbio->sys_func) {
52 RAS_DEV_ERR(ras_core->dev, "RAS nbio sys function not configured!\n");
53 return -EINVAL;
54 }
55
56 nbio->ip_func = ras_nbio_get_ip_funcs(ras_core, ip_version: nbio->nbio_ip_version);
57 if (!nbio->ip_func)
58 return -EINVAL;
59
60 if (nbio->sys_func) {
61 if (nbio->sys_func->set_ras_controller_irq_state)
62 nbio->sys_func->set_ras_controller_irq_state(ras_core, true);
63 if (nbio->sys_func->set_ras_err_event_athub_irq_state)
64 nbio->sys_func->set_ras_err_event_athub_irq_state(ras_core, true);
65 }
66
67 return 0;
68}
69
70int ras_nbio_hw_fini(struct ras_core_context *ras_core)
71{
72 struct ras_nbio *nbio = &ras_core->ras_nbio;
73
74 if (nbio->sys_func) {
75 if (nbio->sys_func->set_ras_controller_irq_state)
76 nbio->sys_func->set_ras_controller_irq_state(ras_core, false);
77 if (nbio->sys_func->set_ras_err_event_athub_irq_state)
78 nbio->sys_func->set_ras_err_event_athub_irq_state(ras_core, false);
79 }
80
81 return 0;
82}
83
84bool ras_nbio_handle_irq_error(struct ras_core_context *ras_core, void *data)
85{
86 struct ras_nbio *nbio = &ras_core->ras_nbio;
87
88 if (nbio->ip_func) {
89 if (nbio->ip_func->handle_ras_controller_intr_no_bifring)
90 nbio->ip_func->handle_ras_controller_intr_no_bifring(ras_core);
91 if (nbio->ip_func->handle_ras_err_event_athub_intr_no_bifring)
92 nbio->ip_func->handle_ras_err_event_athub_intr_no_bifring(ras_core);
93 }
94
95 return true;
96}
97

source code of linux/drivers/gpu/drm/amd/ras/rascore/ras_nbio.c