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
50struct etna_bo_bucket {
51	uint32_t size;
52	struct list_head list;
53};
54
55struct etna_bo_cache {
56	struct etna_bo_bucket cache_bucket[14 * 4];
57	unsigned num_buckets;
58	time_t time;
59};
60
61struct 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
81drm_private void etna_bo_cache_init(struct etna_bo_cache *cache);
82drm_private void etna_bo_cache_cleanup(struct etna_bo_cache *cache, time_t time);
83drm_private struct etna_bo *etna_bo_cache_alloc(struct etna_bo_cache *cache,
84		uint32_t *size, uint32_t flags);
85drm_private int etna_bo_cache_free(struct etna_bo_cache *cache, struct etna_bo *bo);
86
87/* for where @table_lock is already held: */
88drm_private void etna_device_del_locked(struct etna_device *dev);
89
90/* a GEM buffer object allocated from the DRM device */
91struct 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
116struct etna_gpu {
117	struct etna_device *dev;
118	uint32_t core;
119	uint32_t model;
120	uint32_t revision;
121};
122
123struct etna_pipe {
124	enum etna_pipe_id id;
125	struct etna_gpu *gpu;
126};
127
128struct 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 happened */
154	void (*reset_notify)(struct etna_cmd_stream *stream, void *priv);
155	void *reset_notify_priv;
156};
157
158struct etna_perfmon {
159	struct list_head domains;
160	struct etna_pipe *pipe;
161};
162
163struct etna_perfmon_domain
164{
165	struct list_head head;
166	struct list_head signals;
167	uint8_t id;
168	char name[64];
169};
170
171struct 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
199static 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