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1 /*
2  * Copyright (C) 2014-2015 Etnaviv Project
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 (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  *
23  * Authors:
24  *    Christian Gmeiner <christian.gmeiner@gmail.com>
25  */
26 
27 #ifndef ETNAVIV_PRIV_H_
28 #define ETNAVIV_PRIV_H_
29 
30 #include <stdlib.h>
31 #include <errno.h>
32 #include <string.h>
33 #include <unistd.h>
34 #include <errno.h>
35 #include <fcntl.h>
36 #include <sys/ioctl.h>
37 #include <pthread.h>
38 #include <stdio.h>
39 #include <assert.h>
40 
41 #include "libdrm_macros.h"
42 #include "xf86drm.h"
43 #include "xf86atomic.h"
44 
45 #include "util_double_list.h"
46 
47 #include "etnaviv_drmif.h"
48 #include "etnaviv_drm.h"
49 
50 struct etna_bo_bucket {
51 	uint32_t size;
52 	struct list_head list;
53 };
54 
55 struct etna_bo_cache {
56 	struct etna_bo_bucket cache_bucket[14 * 4];
57 	unsigned num_buckets;
58 	time_t time;
59 };
60 
61 struct etna_device {
62 	int fd;
63 	atomic_t refcnt;
64 
65 	/* tables to keep track of bo's, to avoid "evil-twin" etna_bo objects:
66 	 *
67 	 *   handle_table: maps handle to etna_bo
68 	 *   name_table: maps flink name to etna_bo
69 	 *
70 	 * We end up needing two tables, because DRM_IOCTL_GEM_OPEN always
71 	 * returns a new handle.  So we need to figure out if the bo is already
72 	 * open in the process first, before calling gem-open.
73 	 */
74 	void *handle_table, *name_table;
75 
76 	struct etna_bo_cache bo_cache;
77 
78 	int closefd;        /* call close(fd) upon destruction */
79 };
80 
81 drm_private void etna_bo_cache_init(struct etna_bo_cache *cache);
82 drm_private void etna_bo_cache_cleanup(struct etna_bo_cache *cache, time_t time);
83 drm_private struct etna_bo *etna_bo_cache_alloc(struct etna_bo_cache *cache,
84 		uint32_t *size, uint32_t flags);
85 drm_private int etna_bo_cache_free(struct etna_bo_cache *cache, struct etna_bo *bo);
86 
87 /* for where @table_lock is already held: */
88 drm_private void etna_device_del_locked(struct etna_device *dev);
89 
90 /* a GEM buffer object allocated from the DRM device */
91 struct etna_bo {
92 	struct etna_device      *dev;
93 	void            *map;           /* userspace mmap'ing (if there is one) */
94 	uint32_t        size;
95 	uint32_t        handle;
96 	uint32_t        flags;
97 	uint32_t        name;           /* flink global handle (DRI2 name) */
98 	uint64_t        offset;         /* offset to mmap() */
99 	atomic_t        refcnt;
100 
101 	/* in the common case, a bo won't be referenced by more than a single
102 	 * command stream.  So to avoid looping over all the bo's in the
103 	 * reloc table to find the idx of a bo that might already be in the
104 	 * table, we cache the idx in the bo.  But in order to detect the
105 	 * slow-path where bo is ref'd in multiple streams, we also must track
106 	 * the current_stream for which the idx is valid.  See bo2idx().
107 	 */
108 	struct etna_cmd_stream *current_stream;
109 	uint32_t idx;
110 
111 	int reuse;
112 	struct list_head list;   /* bucket-list entry */
113 	time_t free_time;        /* time when added to bucket-list */
114 };
115 
116 struct etna_gpu {
117 	struct etna_device *dev;
118 	uint32_t core;
119 	uint32_t model;
120 	uint32_t revision;
121 };
122 
123 struct etna_pipe {
124 	enum etna_pipe_id id;
125 	struct etna_gpu *gpu;
126 };
127 
128 struct etna_cmd_stream_priv {
129 	struct etna_cmd_stream base;
130 	struct etna_pipe *pipe;
131 
132 	uint32_t last_timestamp;
133 
134 	/* submit ioctl related tables: */
135 	struct {
136 		/* bo's table: */
137 		struct drm_etnaviv_gem_submit_bo *bos;
138 		uint32_t nr_bos, max_bos;
139 
140 		/* reloc's table: */
141 		struct drm_etnaviv_gem_submit_reloc *relocs;
142 		uint32_t nr_relocs, max_relocs;
143 
144 		/* perf's table: */
145 		struct drm_etnaviv_gem_submit_pmr *pmrs;
146 		uint32_t nr_pmrs, max_pmrs;
147 	} submit;
148 
149 	/* should have matching entries in submit.bos: */
150 	struct etna_bo **bos;
151 	uint32_t nr_bos, max_bos;
152 
153 	/* notify callback if buffer reset happend */
154 	void (*reset_notify)(struct etna_cmd_stream *stream, void *priv);
155 	void *reset_notify_priv;
156 };
157 
158 struct etna_perfmon {
159 	struct list_head domains;
160 	struct etna_pipe *pipe;
161 };
162 
163 struct etna_perfmon_domain
164 {
165 	struct list_head head;
166 	struct list_head signals;
167 	uint8_t id;
168 	char name[64];
169 };
170 
171 struct etna_perfmon_signal
172 {
173 	struct list_head head;
174 	struct etna_perfmon_domain *domain;
175 	uint8_t signal;
176 	char name[64];
177 };
178 
179 #define ALIGN(v,a) (((v) + (a) - 1) & ~((a) - 1))
180 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
181 
182 #define enable_debug 1  /* TODO make dynamic */
183 
184 #define INFO_MSG(fmt, ...) \
185 		do { drmMsg("[I] "fmt " (%s:%d)\n", \
186 				##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
187 #define DEBUG_MSG(fmt, ...) \
188 		do if (enable_debug) { drmMsg("[D] "fmt " (%s:%d)\n", \
189 				##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
190 #define WARN_MSG(fmt, ...) \
191 		do { drmMsg("[W] "fmt " (%s:%d)\n", \
192 				##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
193 #define ERROR_MSG(fmt, ...) \
194 		do { drmMsg("[E] " fmt " (%s:%d)\n", \
195 				##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
196 
197 #define VOID2U64(x) ((uint64_t)(unsigned long)(x))
198 
get_abs_timeout(struct drm_etnaviv_timespec * tv,uint64_t ns)199 static inline void get_abs_timeout(struct drm_etnaviv_timespec *tv, uint64_t ns)
200 {
201 	struct timespec t;
202 	uint32_t s = ns / 1000000000;
203 	clock_gettime(CLOCK_MONOTONIC, &t);
204 	tv->tv_sec = t.tv_sec + s;
205 	tv->tv_nsec = t.tv_nsec + ns - (s * 1000000000);
206 }
207 
208 #endif /* ETNAVIV_PRIV_H_ */
209