1 /*
2 * Copyright 2017 Valve Corporation
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 * Authors: Andres Rodriguez <andresx7@gmail.com>
23 */
24
25 #include <linux/fdtable.h>
26 #include <linux/file.h>
27 #include <linux/pid.h>
28
29 #include <drm/amdgpu_drm.h>
30
31 #include "amdgpu.h"
32 #include "amdgpu_sched.h"
33 #include "amdgpu_vm.h"
34
amdgpu_sched_process_priority_override(struct amdgpu_device * adev,int fd,int32_t priority)35 static int amdgpu_sched_process_priority_override(struct amdgpu_device *adev,
36 int fd,
37 int32_t priority)
38 {
39 STUB();
40 return -ENOSYS;
41 #ifdef notyet
42 struct fd f = fdget(fd);
43 struct amdgpu_fpriv *fpriv;
44 struct amdgpu_ctx_mgr *mgr;
45 struct amdgpu_ctx *ctx;
46 uint32_t id;
47 int r;
48
49 if (!f.file)
50 return -EINVAL;
51
52 r = amdgpu_file_to_fpriv(f.file, &fpriv);
53 if (r) {
54 fdput(f);
55 return r;
56 }
57
58 mgr = &fpriv->ctx_mgr;
59 mutex_lock(&mgr->lock);
60 idr_for_each_entry(&mgr->ctx_handles, ctx, id)
61 amdgpu_ctx_priority_override(ctx, priority);
62 mutex_unlock(&mgr->lock);
63
64 fdput(f);
65 return 0;
66 #endif
67 }
68
amdgpu_sched_context_priority_override(struct amdgpu_device * adev,int fd,unsigned ctx_id,int32_t priority)69 static int amdgpu_sched_context_priority_override(struct amdgpu_device *adev,
70 int fd,
71 unsigned ctx_id,
72 int32_t priority)
73 {
74 STUB();
75 return -ENOSYS;
76 #ifdef notyet
77 struct fd f = fdget(fd);
78 struct amdgpu_fpriv *fpriv;
79 struct amdgpu_ctx *ctx;
80 int r;
81
82 if (!f.file)
83 return -EINVAL;
84
85 r = amdgpu_file_to_fpriv(f.file, &fpriv);
86 if (r) {
87 fdput(f);
88 return r;
89 }
90
91 ctx = amdgpu_ctx_get(fpriv, ctx_id);
92
93 if (!ctx) {
94 fdput(f);
95 return -EINVAL;
96 }
97
98 amdgpu_ctx_priority_override(ctx, priority);
99 amdgpu_ctx_put(ctx);
100 fdput(f);
101
102 return 0;
103 #endif
104 }
105
amdgpu_sched_ioctl(struct drm_device * dev,void * data,struct drm_file * filp)106 int amdgpu_sched_ioctl(struct drm_device *dev, void *data,
107 struct drm_file *filp)
108 {
109 union drm_amdgpu_sched *args = data;
110 struct amdgpu_device *adev = drm_to_adev(dev);
111 int r;
112
113 /* First check the op, then the op's argument.
114 */
115 switch (args->in.op) {
116 case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE:
117 case AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE:
118 break;
119 default:
120 DRM_ERROR("Invalid sched op specified: %d\n", args->in.op);
121 return -EINVAL;
122 }
123
124 if (!amdgpu_ctx_priority_is_valid(args->in.priority)) {
125 WARN(1, "Invalid context priority %d\n", args->in.priority);
126 return -EINVAL;
127 }
128
129 switch (args->in.op) {
130 case AMDGPU_SCHED_OP_PROCESS_PRIORITY_OVERRIDE:
131 r = amdgpu_sched_process_priority_override(adev,
132 args->in.fd,
133 args->in.priority);
134 break;
135 case AMDGPU_SCHED_OP_CONTEXT_PRIORITY_OVERRIDE:
136 r = amdgpu_sched_context_priority_override(adev,
137 args->in.fd,
138 args->in.ctx_id,
139 args->in.priority);
140 break;
141 default:
142 /* Impossible.
143 */
144 r = -EINVAL;
145 break;
146 }
147
148 return r;
149 }
150