src/freedreno/drm/freedreno_priv.h

   1 /*
   2  * Copyright (C) 2012-2018 Rob Clark <robclark@freedesktop.org>
   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  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #ifndef FREEDRENO_PRIV_H_
  28 #define FREEDRENO_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 <sys/mman.h>
  38 #include <pthread.h>
  39 #include <stdio.h>
  40
  41 #include <xf86drm.h>
  42
  43 #include "util/hash_table.h"
  44 #include "util/list.h"
  45 #include "util/u_debug.h"
  46 #include "util/u_atomic.h"
  47 #include "util/u_math.h"
  48 #include "util/u_debug.h"
  49
  50 #include "freedreno_drmif.h"
  51 #include "freedreno_ringbuffer.h"
  52
  53 #define atomic_dec_and_test(x) (__sync_add_and_fetch (x, -1) == 0)
  54
  55 struct fd_device_funcs {
  56         int (*bo_new_handle)(struct fd_device *dev, uint32_t size,
  57                         uint32_t flags, uint32_t *handle);
  58         struct fd_bo * (*bo_from_handle)(struct fd_device *dev,
  59                         uint32_t size, uint32_t handle);
  60         struct fd_pipe * (*pipe_new)(struct fd_device *dev, enum fd_pipe_id id,
  61                         unsigned prio);
  62         void (*destroy)(struct fd_device *dev);
  63 };
  64
  65 struct fd_bo_bucket {
  66         uint32_t size;
  67         struct list_head list;
  68 };
  69
  70 struct fd_bo_cache {
  71         struct fd_bo_bucket cache_bucket[14 * 4];
  72         int num_buckets;
  73         time_t time;
  74 };
  75
  76 struct fd_device {
  77         int fd;
  78         enum fd_version version;
  79         int32_t refcnt;
  80
  81         /* tables to keep track of bo's, to avoid "evil-twin" fd_bo objects:
  82          *
  83          *   handle_table: maps handle to fd_bo
  84          *   name_table: maps flink name to fd_bo
  85          *
  86          * We end up needing two tables, because DRM_IOCTL_GEM_OPEN always
  87          * returns a new handle.  So we need to figure out if the bo is already
  88          * open in the process first, before calling gem-open.
  89          */
  90         struct hash_table *handle_table, *name_table;
  91
  92         const struct fd_device_funcs *funcs;
  93
  94         struct fd_bo_cache bo_cache;
  95         struct fd_bo_cache ring_cache;
  96
  97         int closefd;        /* call close(fd) upon destruction */
  98
  99         /* just for valgrind: */
 100         int bo_size;
 101 };
 102
 103 void fd_bo_cache_init(struct fd_bo_cache *cache, int coarse);
 104 void fd_bo_cache_cleanup(struct fd_bo_cache *cache, time_t time);
 105 struct fd_bo * fd_bo_cache_alloc(struct fd_bo_cache *cache,
 106                 uint32_t *size, uint32_t flags);
 107 int fd_bo_cache_free(struct fd_bo_cache *cache, struct fd_bo *bo);
 108
 109 /* for where @table_lock is already held: */
 110 void fd_device_del_locked(struct fd_device *dev);
 111
 112 struct fd_pipe_funcs {
 113         struct fd_ringbuffer * (*ringbuffer_new_object)(struct fd_pipe *pipe, uint32_t size);
 114         struct fd_submit * (*submit_new)(struct fd_pipe *pipe);
 115         int (*get_param)(struct fd_pipe *pipe, enum fd_param_id param, uint64_t *value);
 116         int (*wait)(struct fd_pipe *pipe, uint32_t timestamp, uint64_t timeout);
 117         void (*destroy)(struct fd_pipe *pipe);
 118 };
 119
 120 struct fd_pipe {
 121         struct fd_device *dev;
 122         enum fd_pipe_id id;
 123         uint32_t gpu_id;
 124         int32_t refcnt;
 125         const struct fd_pipe_funcs *funcs;
 126 };
 127
 128 struct fd_submit_funcs {
 129         struct fd_ringbuffer * (*new_ringbuffer)(struct fd_submit *submit,
 130                         uint32_t size, enum fd_ringbuffer_flags flags);
 131         int (*flush)(struct fd_submit *submit, int in_fence_fd,
 132                         int *out_fence_fd, uint32_t *out_fence);
 133         void (*destroy)(struct fd_submit *submit);
 134 };
 135
 136 struct fd_submit {
 137         struct fd_pipe *pipe;
 138         const struct fd_submit_funcs *funcs;
 139 };
 140
 141 struct fd_bo_funcs {
 142         int (*offset)(struct fd_bo *bo, uint64_t *offset);
 143         int (*cpu_prep)(struct fd_bo *bo, struct fd_pipe *pipe, uint32_t op);
 144         void (*cpu_fini)(struct fd_bo *bo);
 145         int (*madvise)(struct fd_bo *bo, int willneed);
 146         uint64_t (*iova)(struct fd_bo *bo);
 147         void (*set_name)(struct fd_bo *bo, const char *fmt, va_list ap);
 148         void (*destroy)(struct fd_bo *bo);
 149 };
 150
 151 struct fd_bo {
 152         struct fd_device *dev;
 153         uint32_t size;
 154         uint32_t handle;
 155         uint32_t name;
 156         int32_t refcnt;
 157         uint32_t flags; /* flags like FD_RELOC_DUMP to use for relocs to this BO */
 158         uint64_t iova;
 159         void *map;
 160         const struct fd_bo_funcs *funcs;
 161
 162         enum {
 163                 NO_CACHE = 0,
 164                 BO_CACHE = 1,
 165                 RING_CACHE = 2,
 166         } bo_reuse;
 167
 168         struct list_head list;   /* bucket-list entry */
 169         time_t free_time;        /* time when added to bucket-list */
 170 };
 171
 172 struct fd_bo *fd_bo_new_ring(struct fd_device *dev, uint32_t size);
 173
 174 #define enable_debug 0  /* TODO make dynamic */
 175
 176 bool fd_dbg(void);
 177
 178 #define INFO_MSG(fmt, ...) \
 179                 do { if (fd_dbg()) debug_printf("[I] "fmt " (%s:%d)\n", \
 180                                 ##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
 181 #define DEBUG_MSG(fmt, ...) \
 182                 do if (enable_debug) { debug_printf("[D] "fmt " (%s:%d)\n", \
 183                                 ##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
 184 #define WARN_MSG(fmt, ...) \
 185                 do { debug_printf("[W] "fmt " (%s:%d)\n", \
 186                                 ##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
 187 #define ERROR_MSG(fmt, ...) \
 188                 do { debug_printf("[E] " fmt " (%s:%d)\n", \
 189                                 ##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
 190
 191 #define U642VOID(x) ((void *)(unsigned long)(x))
 192 #define VOID2U64(x) ((uint64_t)(unsigned long)(x))
 193
 194 #if HAVE_VALGRIND
 195 #  include <memcheck.h>
 196
 197 /*
 198  * For tracking the backing memory (if valgrind enabled, we force a mmap
 199  * for the purposes of tracking)
 200  */
 201 static inline void VG_BO_ALLOC(struct fd_bo *bo)
 202 {
 203         if (bo && RUNNING_ON_VALGRIND) {
 204                 VALGRIND_MALLOCLIKE_BLOCK(fd_bo_map(bo), bo->size, 0, 1);
 205         }
 206 }
 207
 208 static inline void VG_BO_FREE(struct fd_bo *bo)
 209 {
 210         VALGRIND_FREELIKE_BLOCK(bo->map, 0);
 211 }
 212
 213 /*
 214  * For tracking bo structs that are in the buffer-cache, so that valgrind
 215  * doesn't attribute ownership to the first one to allocate the recycled
 216  * bo.
 217  *
 218  * Note that the list_head in fd_bo is used to track the buffers in cache
 219  * so disable error reporting on the range while they are in cache so
 220  * valgrind doesn't squawk about list traversal.
 221  *
 222  */
 223 static inline void VG_BO_RELEASE(struct fd_bo *bo)
 224 {
 225         if (RUNNING_ON_VALGRIND) {
 226                 VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE(bo, bo->dev->bo_size);
 227                 VALGRIND_MAKE_MEM_NOACCESS(bo, bo->dev->bo_size);
 228                 VALGRIND_FREELIKE_BLOCK(bo->map, 0);
 229         }
 230 }
 231 static inline void VG_BO_OBTAIN(struct fd_bo *bo)
 232 {
 233         if (RUNNING_ON_VALGRIND) {
 234                 VALGRIND_MAKE_MEM_DEFINED(bo, bo->dev->bo_size);
 235                 VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE(bo, bo->dev->bo_size);
 236                 VALGRIND_MALLOCLIKE_BLOCK(bo->map, bo->size, 0, 1);
 237         }
 238 }
 239 #else
 240 static inline void VG_BO_ALLOC(struct fd_bo *bo)   {}
 241 static inline void VG_BO_FREE(struct fd_bo *bo)    {}
 242 static inline void VG_BO_RELEASE(struct fd_bo *bo) {}
 243 static inline void VG_BO_OBTAIN(struct fd_bo *bo)  {}
 244 #endif
 245
 246 #define FD_DEFINE_CAST(parent, child) \
 247 static inline struct child * to_ ## child (struct parent *x) \
 248 { return (struct child *)x; }
 249
 250
 251 #endif /* FREEDRENO_PRIV_H_ */