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Merge tag 'nfs-for-5.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
[linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_sdma.c
1 /*
2  * Copyright 2018 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_sdma.h"
26 #include "amdgpu_ras.h"
27
28 #define AMDGPU_CSA_SDMA_SIZE 64
29 /* SDMA CSA reside in the 3rd page of CSA */
30 #define AMDGPU_CSA_SDMA_OFFSET (4096 * 2)
31
32 /*
33  * GPU SDMA IP block helpers function.
34  */
35
36 struct amdgpu_sdma_instance *amdgpu_sdma_get_instance_from_ring(struct amdgpu_ring *ring)
37 {
38         struct amdgpu_device *adev = ring->adev;
39         int i;
40
41         for (i = 0; i < adev->sdma.num_instances; i++)
42                 if (ring == &adev->sdma.instance[i].ring ||
43                     ring == &adev->sdma.instance[i].page)
44                         return &adev->sdma.instance[i];
45
46         return NULL;
47 }
48
49 int amdgpu_sdma_get_index_from_ring(struct amdgpu_ring *ring, uint32_t *index)
50 {
51         struct amdgpu_device *adev = ring->adev;
52         int i;
53
54         for (i = 0; i < adev->sdma.num_instances; i++) {
55                 if (ring == &adev->sdma.instance[i].ring ||
56                         ring == &adev->sdma.instance[i].page) {
57                         *index = i;
58                         return 0;
59                 }
60         }
61
62         return -EINVAL;
63 }
64
65 uint64_t amdgpu_sdma_get_csa_mc_addr(struct amdgpu_ring *ring,
66                                      unsigned vmid)
67 {
68         struct amdgpu_device *adev = ring->adev;
69         uint64_t csa_mc_addr;
70         uint32_t index = 0;
71         int r;
72
73         /* don't enable OS preemption on SDMA under SRIOV */
74         if (amdgpu_sriov_vf(adev) || vmid == 0 || !amdgpu_mcbp)
75                 return 0;
76
77         if (ring->is_mes_queue) {
78                 uint32_t offset = 0;
79
80                 offset = offsetof(struct amdgpu_mes_ctx_meta_data,
81                                   sdma[ring->idx].sdma_meta_data);
82                 csa_mc_addr = amdgpu_mes_ctx_get_offs_gpu_addr(ring, offset);
83         } else {
84                 r = amdgpu_sdma_get_index_from_ring(ring, &index);
85
86                 if (r || index > 31)
87                         csa_mc_addr = 0;
88                 else
89                         csa_mc_addr = amdgpu_csa_vaddr(adev) +
90                                 AMDGPU_CSA_SDMA_OFFSET +
91                                 index * AMDGPU_CSA_SDMA_SIZE;
92         }
93
94         return csa_mc_addr;
95 }
96
97 int amdgpu_sdma_ras_late_init(struct amdgpu_device *adev,
98                               struct ras_common_if *ras_block)
99 {
100         int r, i;
101
102         r = amdgpu_ras_block_late_init(adev, ras_block);
103         if (r)
104                 return r;
105
106         if (amdgpu_ras_is_supported(adev, ras_block->block)) {
107                 for (i = 0; i < adev->sdma.num_instances; i++) {
108                         r = amdgpu_irq_get(adev, &adev->sdma.ecc_irq,
109                                 AMDGPU_SDMA_IRQ_INSTANCE0 + i);
110                         if (r)
111                                 goto late_fini;
112                 }
113         }
114
115         return 0;
116
117 late_fini:
118         amdgpu_ras_block_late_fini(adev, ras_block);
119         return r;
120 }
121
122 int amdgpu_sdma_process_ras_data_cb(struct amdgpu_device *adev,
123                 void *err_data,
124                 struct amdgpu_iv_entry *entry)
125 {
126         kgd2kfd_set_sram_ecc_flag(adev->kfd.dev);
127
128         if (amdgpu_sriov_vf(adev))
129                 return AMDGPU_RAS_SUCCESS;
130
131         amdgpu_ras_reset_gpu(adev);
132
133         return AMDGPU_RAS_SUCCESS;
134 }
135
136 int amdgpu_sdma_process_ecc_irq(struct amdgpu_device *adev,
137                                       struct amdgpu_irq_src *source,
138                                       struct amdgpu_iv_entry *entry)
139 {
140         struct ras_common_if *ras_if = adev->sdma.ras_if;
141         struct ras_dispatch_if ih_data = {
142                 .entry = entry,
143         };
144
145         if (!ras_if)
146                 return 0;
147
148         ih_data.head = *ras_if;
149
150         amdgpu_ras_interrupt_dispatch(adev, &ih_data);
151         return 0;
152 }
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