1 /* $NetBSD: amdgpu_vf_error.c,v 1.2 2021/12/18 23:44:58 riastradh Exp $ */
2
3 /*
4 * Copyright 2017 Advanced Micro Devices, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: amdgpu_vf_error.c,v 1.2 2021/12/18 23:44:58 riastradh Exp $");
28
29 #include "amdgpu.h"
30 #include "amdgpu_vf_error.h"
31 #include "mxgpu_ai.h"
32
amdgpu_vf_error_put(struct amdgpu_device * adev,uint16_t sub_error_code,uint16_t error_flags,uint64_t error_data)33 void amdgpu_vf_error_put(struct amdgpu_device *adev,
34 uint16_t sub_error_code,
35 uint16_t error_flags,
36 uint64_t error_data)
37 {
38 int index;
39 uint16_t error_code;
40
41 if (!amdgpu_sriov_vf(adev))
42 return;
43
44 error_code = AMDGIM_ERROR_CODE(AMDGIM_ERROR_CATEGORY_VF, sub_error_code);
45
46 mutex_lock(&adev->virt.vf_errors.lock);
47 index = adev->virt.vf_errors.write_count % AMDGPU_VF_ERROR_ENTRY_SIZE;
48 adev->virt.vf_errors.code [index] = error_code;
49 adev->virt.vf_errors.flags [index] = error_flags;
50 adev->virt.vf_errors.data [index] = error_data;
51 adev->virt.vf_errors.write_count ++;
52 mutex_unlock(&adev->virt.vf_errors.lock);
53 }
54
55
amdgpu_vf_error_trans_all(struct amdgpu_device * adev)56 void amdgpu_vf_error_trans_all(struct amdgpu_device *adev)
57 {
58 /* u32 pf2vf_flags = 0; */
59 u32 data1, data2, data3;
60 int index;
61
62 if ((NULL == adev) || (!amdgpu_sriov_vf(adev)) ||
63 (!adev->virt.ops) || (!adev->virt.ops->trans_msg)) {
64 return;
65 }
66 /*
67 TODO: Enable these code when pv2vf_info is merged
68 AMDGPU_FW_VRAM_PF2VF_READ (adev, feature_flags, &pf2vf_flags);
69 if (!(pf2vf_flags & AMDGIM_FEATURE_ERROR_LOG_COLLECT)) {
70 return;
71 }
72 */
73
74 mutex_lock(&adev->virt.vf_errors.lock);
75 /* The errors are overlay of array, correct read_count as full. */
76 if (adev->virt.vf_errors.write_count - adev->virt.vf_errors.read_count > AMDGPU_VF_ERROR_ENTRY_SIZE) {
77 adev->virt.vf_errors.read_count = adev->virt.vf_errors.write_count - AMDGPU_VF_ERROR_ENTRY_SIZE;
78 }
79
80 while (adev->virt.vf_errors.read_count < adev->virt.vf_errors.write_count) {
81 index =adev->virt.vf_errors.read_count % AMDGPU_VF_ERROR_ENTRY_SIZE;
82 data1 = AMDGIM_ERROR_CODE_FLAGS_TO_MAILBOX(adev->virt.vf_errors.code[index],
83 adev->virt.vf_errors.flags[index]);
84 data2 = adev->virt.vf_errors.data[index] & 0xFFFFFFFF;
85 data3 = (adev->virt.vf_errors.data[index] >> 32) & 0xFFFFFFFF;
86
87 adev->virt.ops->trans_msg(adev, IDH_LOG_VF_ERROR, data1, data2, data3);
88 adev->virt.vf_errors.read_count ++;
89 }
90 mutex_unlock(&adev->virt.vf_errors.lock);
91 }
92