diff options
Diffstat (limited to 'include/os/posix/nvgpu.c')
-rw-r--r-- | include/os/posix/nvgpu.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/include/os/posix/nvgpu.c b/include/os/posix/nvgpu.c deleted file mode 100644 index 5b68113..0000000 --- a/include/os/posix/nvgpu.c +++ /dev/null | |||
@@ -1,165 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2018-2021, NVIDIA CORPORATION. All rights reserved. | ||
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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
19 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
20 | * DEALINGS IN THE SOFTWARE. | ||
21 | */ | ||
22 | |||
23 | #include <unistd.h> | ||
24 | #include <stdlib.h> | ||
25 | #include <pthread.h> | ||
26 | |||
27 | #include <nvgpu/gk20a.h> | ||
28 | #include <nvgpu/bug.h> | ||
29 | #include <nvgpu/types.h> | ||
30 | #include <nvgpu/atomic.h> | ||
31 | #include <nvgpu/nvgpu_common.h> | ||
32 | #include <nvgpu/os_sched.h> | ||
33 | #include <nvgpu/gk20a.h> | ||
34 | |||
35 | #include <nvgpu/posix/probe.h> | ||
36 | |||
37 | #include "os_posix.h" | ||
38 | |||
39 | int nvgpu_wait_for_stall_interrupts(struct gk20a *g, u32 timeout) | ||
40 | { | ||
41 | /* | ||
42 | * No interrupts in userspace so nothing to wait for. | ||
43 | */ | ||
44 | return 0; | ||
45 | } | ||
46 | |||
47 | int nvgpu_wait_for_nonstall_interrupts(struct gk20a *g, u32 timeout) | ||
48 | { | ||
49 | /* | ||
50 | * No interrupts in userspace so nothing to wait for. | ||
51 | */ | ||
52 | return 0; | ||
53 | } | ||
54 | |||
55 | void nvgpu_wait_for_deferred_interrupts(struct gk20a *g) | ||
56 | { | ||
57 | /* | ||
58 | * No interrupts in userspace so nothing to wait for. | ||
59 | */ | ||
60 | } | ||
61 | |||
62 | int nvgpu_current_pid(struct gk20a *g) | ||
63 | { | ||
64 | /* | ||
65 | * In the kernel this gets us the PID of the calling process for IOCTLs. | ||
66 | * But since we are in userspace this doesn't quite mean the same thing. | ||
67 | * This simply returns the PID of the currently running process. | ||
68 | */ | ||
69 | return (int)getpid(); | ||
70 | } | ||
71 | |||
72 | int nvgpu_current_tid(struct gk20a *g) | ||
73 | { | ||
74 | /* | ||
75 | * In POSIX thread ID is not the same as a process ID. In Linux threads | ||
76 | * and processes are represented by the same thing, but userspace can't | ||
77 | * really rely on that. | ||
78 | * | ||
79 | * We can, however, get a pthread_t for a given thread. But this | ||
80 | * pthread_t need not have any relation to the underlying system's | ||
81 | * representation of "threads". | ||
82 | */ | ||
83 | return (int)pthread_self(); | ||
84 | } | ||
85 | |||
86 | void __nvgpu_print_current(struct gk20a *g, const char *func_name, int line, | ||
87 | void *ctx, enum nvgpu_log_type type) | ||
88 | { | ||
89 | __nvgpu_log_msg(g, func_name, line, type, | ||
90 | "Current process: (nvgpu userspace)"); | ||
91 | } | ||
92 | |||
93 | /* | ||
94 | * Somewhat meaningless in userspace... | ||
95 | */ | ||
96 | void nvgpu_kernel_restart(void *cmd) | ||
97 | { | ||
98 | BUG(); | ||
99 | } | ||
100 | |||
101 | /* | ||
102 | * We have no runtime PM stuff in userspace so these are really just noops. | ||
103 | */ | ||
104 | void gk20a_busy_noresume(struct gk20a *g) | ||
105 | { | ||
106 | } | ||
107 | |||
108 | void gk20a_idle_nosuspend(struct gk20a *g) | ||
109 | { | ||
110 | } | ||
111 | |||
112 | bool gk20a_check_poweron(struct gk20a *g) | ||
113 | { | ||
114 | return false; | ||
115 | } | ||
116 | |||
117 | int gk20a_busy(struct gk20a *g) | ||
118 | { | ||
119 | nvgpu_atomic_inc(&g->usage_count); | ||
120 | |||
121 | return 0; | ||
122 | } | ||
123 | |||
124 | void gk20a_idle(struct gk20a *g) | ||
125 | { | ||
126 | nvgpu_atomic_dec(&g->usage_count); | ||
127 | } | ||
128 | |||
129 | /* | ||
130 | * This function aims to initialize enough stuff to make unit testing worth | ||
131 | * while. There are several interfaces and APIs that rely on the struct gk20a's | ||
132 | * state in order to function: logging, for example, but there are many other | ||
133 | * things, too. | ||
134 | * | ||
135 | * Initialize as much of that as possible here. This is meant to be equivalent | ||
136 | * to the kernel space driver's probe function. | ||
137 | */ | ||
138 | struct gk20a *nvgpu_posix_probe(void) | ||
139 | { | ||
140 | struct gk20a *g; | ||
141 | struct nvgpu_os_posix *p; | ||
142 | int err; | ||
143 | |||
144 | p = malloc(sizeof(*p)); | ||
145 | if (p == NULL) | ||
146 | return NULL; | ||
147 | |||
148 | g = &p->g; | ||
149 | |||
150 | err = nvgpu_kmem_init(g); | ||
151 | if (err != 0) | ||
152 | goto fail; | ||
153 | |||
154 | return g; | ||
155 | |||
156 | fail: | ||
157 | free(p); | ||
158 | |||
159 | return NULL; | ||
160 | } | ||
161 | |||
162 | void nvgpu_posix_cleanup(struct gk20a *g) | ||
163 | { | ||
164 | nvgpu_kmem_fini(g, 0); | ||
165 | } | ||