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1 /*
2  * Copyright (C) 2017 Etnaviv Project
3  * Copyright (C) 2017 Zodiac Inflight Innovations
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the "Software"),
7  * to deal in the Software without restriction, including without limitation
8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9  * and/or sell copies of the Software, and to permit persons to whom the
10  * Software is furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice (including the next
13  * paragraph) shall be included in all copies or substantial portions of the
14  * 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  *
24  * Authors:
25  *    Christian Gmeiner <christian.gmeiner@gmail.com>
26  */
27 
28 #include "etnaviv_priv.h"
29 
etna_perfmon_query_signals(struct etna_perfmon * pm,struct etna_perfmon_domain * dom)30 static int etna_perfmon_query_signals(struct etna_perfmon *pm, struct etna_perfmon_domain *dom)
31 {
32 	struct etna_device *dev = pm->pipe->gpu->dev;
33 	struct drm_etnaviv_pm_signal req = {
34 		.pipe = pm->pipe->id,
35 		.domain = dom->id
36 	};
37 
38 	do {
39 		struct etna_perfmon_signal *sig;
40 		int ret;
41 
42 		ret = drmCommandWriteRead(dev->fd, DRM_ETNAVIV_PM_QUERY_SIG, &req, sizeof(req));
43 		if (ret)
44 			break;
45 
46 		sig = calloc(1, sizeof(*sig));
47 		if (!sig)
48 			return -ENOMEM;
49 
50 		INFO_MSG("perfmon signal:");
51 		INFO_MSG("id         = %d", req.id);
52 		INFO_MSG("name       = %s", req.name);
53 
54 		sig->domain = dom;
55 		sig->signal = req.id;
56 		strncpy(sig->name, req.name, sizeof(sig->name));
57 		list_addtail(&sig->head, &dom->signals);
58 	} while (req.iter != 0xffff);
59 
60 	return 0;
61 }
62 
etna_perfmon_query_domains(struct etna_perfmon * pm)63 static int etna_perfmon_query_domains(struct etna_perfmon *pm)
64 {
65 	struct etna_device *dev = pm->pipe->gpu->dev;
66 	struct drm_etnaviv_pm_domain req = {
67 		.pipe = pm->pipe->id
68 	};
69 
70 	do {
71 		struct etna_perfmon_domain *dom;
72 		int ret;
73 
74 		ret = drmCommandWriteRead(dev->fd, DRM_ETNAVIV_PM_QUERY_DOM, &req, sizeof(req));
75 		if (ret)
76 			break;
77 
78 		dom = calloc(1, sizeof(*dom));
79 		if (!dom)
80 			return -ENOMEM;
81 
82 		list_inithead(&dom->signals);
83 		dom->id = req.id;
84 		strncpy(dom->name, req.name, sizeof(dom->name));
85 		list_addtail(&dom->head, &pm->domains);
86 
87 		INFO_MSG("perfmon domain:");
88 		INFO_MSG("id         = %d", req.id);
89 		INFO_MSG("name       = %s", req.name);
90 		INFO_MSG("nr_signals = %d", req.nr_signals);
91 
92 		/* Query all available signals for this domain. */
93 		if (req.nr_signals > 0) {
94 			ret = etna_perfmon_query_signals(pm, dom);
95 			if (ret)
96 				return ret;
97 		}
98 	} while (req.iter != 0xff);
99 
100 	return 0;
101 }
102 
etna_perfmon_free_signals(struct etna_perfmon_domain * dom)103 static void etna_perfmon_free_signals(struct etna_perfmon_domain *dom)
104 {
105 	struct etna_perfmon_signal *sig, *next;
106 
107 	LIST_FOR_EACH_ENTRY_SAFE(sig, next, &dom->signals, head) {
108 		list_del(&sig->head);
109 		free(sig);
110 	}
111 }
112 
etna_perfmon_free_domains(struct etna_perfmon * pm)113 static void etna_perfmon_free_domains(struct etna_perfmon *pm)
114 {
115 	struct etna_perfmon_domain *dom, *next;
116 
117 	LIST_FOR_EACH_ENTRY_SAFE(dom, next, &pm->domains, head) {
118 		etna_perfmon_free_signals(dom);
119 		list_del(&dom->head);
120 		free(dom);
121 	}
122 }
123 
etna_perfmon_create(struct etna_pipe * pipe)124 struct etna_perfmon *etna_perfmon_create(struct etna_pipe *pipe)
125 {
126 	struct etna_perfmon *pm;
127 	int ret;
128 
129 	pm = calloc(1, sizeof(*pm));
130 	if (!pm) {
131 		ERROR_MSG("allocation failed");
132 		return NULL;
133 	}
134 
135 	list_inithead(&pm->domains);
136 	pm->pipe = pipe;
137 
138 	/* query all available domains and sources for this device */
139 	ret = etna_perfmon_query_domains(pm);
140 	if (ret)
141 		goto fail;
142 
143 	return pm;
144 
145 fail:
146 	etna_perfmon_del(pm);
147 	return NULL;
148 }
149 
etna_perfmon_del(struct etna_perfmon * pm)150 void etna_perfmon_del(struct etna_perfmon *pm)
151 {
152 	if (!pm)
153 		return;
154 
155 	etna_perfmon_free_domains(pm);
156 	free(pm);
157 }
158 
etna_perfmon_get_dom_by_name(struct etna_perfmon * pm,const char * name)159 struct etna_perfmon_domain *etna_perfmon_get_dom_by_name(struct etna_perfmon *pm, const char *name)
160 {
161 	struct etna_perfmon_domain *dom;
162 
163 	if (pm) {
164 		LIST_FOR_EACH_ENTRY(dom, &pm->domains, head) {
165 			if (!strcmp(dom->name, name))
166 				return dom;
167 		}
168 	}
169 
170 	return NULL;
171 }
172 
etna_perfmon_get_sig_by_name(struct etna_perfmon_domain * dom,const char * name)173 struct etna_perfmon_signal *etna_perfmon_get_sig_by_name(struct etna_perfmon_domain *dom, const char *name)
174 {
175 	struct etna_perfmon_signal *signal;
176 
177 	if (dom) {
178 		LIST_FOR_EACH_ENTRY(signal, &dom->signals, head) {
179 			if (!strcmp(signal->name, name))
180 				return signal;
181 		}
182 	}
183 
184 	return NULL;
185 }
186