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