freedreno/freedreno_priv.h

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #ifndef FREEDRENO_PRIV_H_
  30 #define FREEDRENO_PRIV_H_
  31
  32 #include <stdlib.h>
  33 #include <errno.h>
  34 #include <string.h>
  35 #include <unistd.h>
  36 #include <errno.h>
  37 #include <fcntl.h>
  38 #include <sys/ioctl.h>
  39 #include <pthread.h>
  40 #include <stdio.h>
  41 #include <assert.h>
  42
  43 #include "libdrm_macros.h"
  44 #include "xf86drm.h"
  45 #include "xf86atomic.h"
  46
  47 #include "util_double_list.h"
  48 #include "util_math.h"
  49
  50 #include "freedreno_drmif.h"
  51 #include "freedreno_ringbuffer.h"
  52 #include "drm.h"
  53
  54 #ifndef TRUE
  55 #  define TRUE 1
  56 #endif
  57 #ifndef FALSE
  58 #  define FALSE 0
  59 #endif
  60
  61 struct fd_device_funcs {
  62         int (*bo_new_handle)(struct fd_device *dev, uint32_t size,
  63                         uint32_t flags, uint32_t *handle);
  64         struct fd_bo * (*bo_from_handle)(struct fd_device *dev,
  65                         uint32_t size, uint32_t handle);
  66         struct fd_pipe * (*pipe_new)(struct fd_device *dev, enum fd_pipe_id id,
  67                         unsigned prio);
  68         void (*destroy)(struct fd_device *dev);
  69 };
  70
  71 struct fd_bo_bucket {
  72         uint32_t size;
  73         struct list_head list;
  74 };
  75
  76 struct fd_bo_cache {
  77         struct fd_bo_bucket cache_bucket[14 * 4];
  78         int num_buckets;
  79         time_t time;
  80 };
  81
  82 struct fd_device {
  83         int fd;
  84         enum fd_version version;
  85         atomic_t refcnt;
  86
  87         /* tables to keep track of bo's, to avoid "evil-twin" fd_bo objects:
  88          *
  89          *   handle_table: maps handle to fd_bo
  90          *   name_table: maps flink name to fd_bo
  91          *
  92          * We end up needing two tables, because DRM_IOCTL_GEM_OPEN always
  93          * returns a new handle.  So we need to figure out if the bo is already
  94          * open in the process first, before calling gem-open.
  95          */
  96         void *handle_table, *name_table;
  97
  98         const struct fd_device_funcs *funcs;
  99
 100         struct fd_bo_cache bo_cache;
 101         struct fd_bo_cache ring_cache;
 102
 103         int closefd;        /* call close(fd) upon destruction */
 104
 105         /* just for valgrind: */
 106         int bo_size;
 107 };
 108
 109 drm_private void fd_bo_cache_init(struct fd_bo_cache *cache, int coarse);
 110 drm_private void fd_bo_cache_cleanup(struct fd_bo_cache *cache, time_t time);
 111 drm_private struct fd_bo * fd_bo_cache_alloc(struct fd_bo_cache *cache,
 112                 uint32_t *size, uint32_t flags);
 113 drm_private int fd_bo_cache_free(struct fd_bo_cache *cache, struct fd_bo *bo);
 114
 115 /* for where @table_lock is already held: */
 116 drm_private void fd_device_del_locked(struct fd_device *dev);
 117
 118 struct fd_pipe_funcs {
 119         struct fd_ringbuffer * (*ringbuffer_new)(struct fd_pipe *pipe, uint32_t size,
 120                         enum fd_ringbuffer_flags flags);
 121         int (*get_param)(struct fd_pipe *pipe, enum fd_param_id param, uint64_t *value);
 122         int (*wait)(struct fd_pipe *pipe, uint32_t timestamp, uint64_t timeout);
 123         void (*destroy)(struct fd_pipe *pipe);
 124 };
 125
 126 struct fd_pipe {
 127         struct fd_device *dev;
 128         enum fd_pipe_id id;
 129         uint32_t gpu_id;
 130         atomic_t refcnt;
 131         const struct fd_pipe_funcs *funcs;
 132 };
 133
 134 struct fd_ringbuffer_funcs {
 135         void * (*hostptr)(struct fd_ringbuffer *ring);
 136         int (*flush)(struct fd_ringbuffer *ring, uint32_t *last_start,
 137                         int in_fence_fd, int *out_fence_fd);
 138         void (*grow)(struct fd_ringbuffer *ring, uint32_t size);
 139         void (*reset)(struct fd_ringbuffer *ring);
 140         void (*emit_reloc)(struct fd_ringbuffer *ring,
 141                         const struct fd_reloc *reloc);
 142         uint32_t (*emit_reloc_ring)(struct fd_ringbuffer *ring,
 143                         struct fd_ringbuffer *target, uint32_t cmd_idx);
 144         uint32_t (*cmd_count)(struct fd_ringbuffer *ring);
 145         void (*destroy)(struct fd_ringbuffer *ring);
 146 };
 147
 148 struct fd_bo_funcs {
 149         int (*offset)(struct fd_bo *bo, uint64_t *offset);
 150         int (*cpu_prep)(struct fd_bo *bo, struct fd_pipe *pipe, uint32_t op);
 151         void (*cpu_fini)(struct fd_bo *bo);
 152         int (*madvise)(struct fd_bo *bo, int willneed);
 153         uint64_t (*iova)(struct fd_bo *bo);
 154         void (*destroy)(struct fd_bo *bo);
 155 };
 156
 157 struct fd_bo {
 158         struct fd_device *dev;
 159         uint32_t size;
 160         uint32_t handle;
 161         uint32_t name;
 162         void *map;
 163         atomic_t refcnt;
 164         const struct fd_bo_funcs *funcs;
 165
 166         enum {
 167                 NO_CACHE = 0,
 168                 BO_CACHE = 1,
 169                 RING_CACHE = 2,
 170         } bo_reuse;
 171
 172         struct list_head list;   /* bucket-list entry */
 173         time_t free_time;        /* time when added to bucket-list */
 174 };
 175
 176 drm_private struct fd_bo *fd_bo_new_ring(struct fd_device *dev,
 177                 uint32_t size, uint32_t flags);
 178
 179 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 180
 181 #define enable_debug 0  /* TODO make dynamic */
 182
 183 #define INFO_MSG(fmt, ...) \
 184                 do { drmMsg("[I] "fmt " (%s:%d)\n", \
 185                                 ##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
 186 #define DEBUG_MSG(fmt, ...) \
 187                 do if (enable_debug) { drmMsg("[D] "fmt " (%s:%d)\n", \
 188                                 ##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
 189 #define WARN_MSG(fmt, ...) \
 190                 do { drmMsg("[W] "fmt " (%s:%d)\n", \
 191                                 ##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
 192 #define ERROR_MSG(fmt, ...) \
 193                 do { drmMsg("[E] " fmt " (%s:%d)\n", \
 194                                 ##__VA_ARGS__, __FUNCTION__, __LINE__); } while (0)
 195
 196 #define U642VOID(x) ((void *)(unsigned long)(x))
 197 #define VOID2U64(x) ((uint64_t)(unsigned long)(x))
 198
 199 static inline uint32_t
 200 offset_bytes(void *end, void *start)
 201 {
 202         return ((char *)end) - ((char *)start);
 203 }
 204
 205 #if HAVE_VALGRIND
 206 #  include <memcheck.h>
 207
 208 /*
 209  * For tracking the backing memory (if valgrind enabled, we force a mmap
 210  * for the purposes of tracking)
 211  */
 212 static inline void VG_BO_ALLOC(struct fd_bo *bo)
 213 {
 214         if (bo && RUNNING_ON_VALGRIND) {
 215                 VALGRIND_MALLOCLIKE_BLOCK(fd_bo_map(bo), bo->size, 0, 1);
 216         }
 217 }
 218
 219 static inline void VG_BO_FREE(struct fd_bo *bo)
 220 {
 221         VALGRIND_FREELIKE_BLOCK(bo->map, 0);
 222 }
 223
 224 /*
 225  * For tracking bo structs that are in the buffer-cache, so that valgrind
 226  * doesn't attribute ownership to the first one to allocate the recycled
 227  * bo.
 228  *
 229  * Note that the list_head in fd_bo is used to track the buffers in cache
 230  * so disable error reporting on the range while they are in cache so
 231  * valgrind doesn't squawk about list traversal.
 232  *
 233  */
 234 static inline void VG_BO_RELEASE(struct fd_bo *bo)
 235 {
 236         if (RUNNING_ON_VALGRIND) {
 237                 VALGRIND_DISABLE_ADDR_ERROR_REPORTING_IN_RANGE(bo, bo->dev->bo_size);
 238                 VALGRIND_MAKE_MEM_NOACCESS(bo, bo->dev->bo_size);
 239                 VALGRIND_FREELIKE_BLOCK(bo->map, 0);
 240         }
 241 }
 242 static inline void VG_BO_OBTAIN(struct fd_bo *bo)
 243 {
 244         if (RUNNING_ON_VALGRIND) {
 245                 VALGRIND_MAKE_MEM_DEFINED(bo, bo->dev->bo_size);
 246                 VALGRIND_ENABLE_ADDR_ERROR_REPORTING_IN_RANGE(bo, bo->dev->bo_size);
 247                 VALGRIND_MALLOCLIKE_BLOCK(bo->map, bo->size, 0, 1);
 248         }
 249 }
 250 #else
 251 static inline void VG_BO_ALLOC(struct fd_bo *bo)   {}
 252 static inline void VG_BO_FREE(struct fd_bo *bo)    {}
 253 static inline void VG_BO_RELEASE(struct fd_bo *bo) {}
 254 static inline void VG_BO_OBTAIN(struct fd_bo *bo)  {}
 255 #endif
 256
 257
 258 #endif /* FREEDRENO_PRIV_H_ */