Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 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 | #include "freedreno_drmif.h" |
| 30 | #include "freedreno_priv.h" |
| 31 | |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 32 | static pthread_mutex_t table_lock = PTHREAD_MUTEX_INITIALIZER; |
| 33 | |
| 34 | /* set buffer name, and add to table, call w/ table_lock held: */ |
| 35 | static void set_name(struct fd_bo *bo, uint32_t name) |
| 36 | { |
| 37 | bo->name = name; |
| 38 | /* add ourself into the handle table: */ |
| 39 | drmHashInsert(bo->dev->name_table, name, bo); |
| 40 | } |
| 41 | |
| 42 | /* lookup a buffer, call w/ table_lock held: */ |
| 43 | static struct fd_bo * lookup_bo(void *tbl, uint32_t key) |
| 44 | { |
| 45 | struct fd_bo *bo = NULL; |
| 46 | if (!drmHashLookup(tbl, key, (void **)&bo)) { |
| 47 | /* found, incr refcnt and return: */ |
| 48 | bo = fd_bo_ref(bo); |
| 49 | } |
| 50 | return bo; |
| 51 | } |
| 52 | |
| 53 | /* allocate a new buffer object, call w/ table_lock held */ |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 54 | static struct fd_bo * bo_from_handle(struct fd_device *dev, |
| 55 | uint32_t size, uint32_t handle) |
| 56 | { |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 57 | struct fd_bo *bo; |
| 58 | |
| 59 | bo = dev->funcs->bo_from_handle(dev, size, handle); |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 60 | if (!bo) { |
| 61 | struct drm_gem_close req = { |
| 62 | .handle = handle, |
| 63 | }; |
| 64 | drmIoctl(dev->fd, DRM_IOCTL_GEM_CLOSE, &req); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 65 | return NULL; |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 66 | } |
| 67 | bo->dev = fd_device_ref(dev); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 68 | bo->size = size; |
| 69 | bo->handle = handle; |
| 70 | atomic_set(&bo->refcnt, 1); |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 71 | /* add ourself into the handle table: */ |
| 72 | drmHashInsert(dev->handle_table, handle, bo); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 73 | return bo; |
| 74 | } |
| 75 | |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 76 | struct fd_bo * fd_bo_new(struct fd_device *dev, |
| 77 | uint32_t size, uint32_t flags) |
| 78 | { |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 79 | struct fd_bo *bo = NULL; |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 80 | uint32_t handle; |
| 81 | int ret; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 82 | |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 83 | ret = dev->funcs->bo_new_handle(dev, ALIGN(size, 4096), flags, &handle); |
| 84 | if (ret) |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 85 | return NULL; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 86 | |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 87 | pthread_mutex_lock(&table_lock); |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 88 | bo = bo_from_handle(dev, size, handle); |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 89 | pthread_mutex_unlock(&table_lock); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 90 | |
| 91 | return bo; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 92 | } |
| 93 | |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 94 | struct fd_bo *fd_bo_from_handle(struct fd_device *dev, |
| 95 | uint32_t handle, uint32_t size) |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 96 | { |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 97 | struct fd_bo *bo = NULL; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 98 | |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 99 | pthread_mutex_lock(&table_lock); |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 100 | bo = bo_from_handle(dev, size, handle); |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 101 | pthread_mutex_unlock(&table_lock); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 102 | |
| 103 | return bo; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | struct fd_bo * fd_bo_from_name(struct fd_device *dev, uint32_t name) |
| 107 | { |
| 108 | struct drm_gem_open req = { |
| 109 | .name = name, |
| 110 | }; |
Rob Clark | b3a3a77 | 2013-04-25 16:36:15 -0400 | [diff] [blame] | 111 | struct fd_bo *bo; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 112 | |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 113 | pthread_mutex_lock(&table_lock); |
| 114 | |
| 115 | /* check name table first, to see if bo is already open: */ |
| 116 | bo = lookup_bo(dev->name_table, name); |
| 117 | if (bo) |
| 118 | goto out_unlock; |
| 119 | |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 120 | if (drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req)) { |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 121 | ERROR_MSG("gem-open failed: %s", strerror(errno)); |
| 122 | goto out_unlock; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 123 | } |
| 124 | |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 125 | bo = lookup_bo(dev->handle_table, req.handle); |
| 126 | if (bo) |
| 127 | goto out_unlock; |
| 128 | |
Rob Clark | b3a3a77 | 2013-04-25 16:36:15 -0400 | [diff] [blame] | 129 | bo = bo_from_handle(dev, req.size, req.handle); |
| 130 | if (bo) |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 131 | set_name(bo, name); |
| 132 | |
| 133 | out_unlock: |
| 134 | pthread_mutex_unlock(&table_lock); |
Rob Clark | b3a3a77 | 2013-04-25 16:36:15 -0400 | [diff] [blame] | 135 | |
| 136 | return bo; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 137 | } |
| 138 | |
| 139 | struct fd_bo * fd_bo_ref(struct fd_bo *bo) |
| 140 | { |
| 141 | atomic_inc(&bo->refcnt); |
| 142 | return bo; |
| 143 | } |
| 144 | |
| 145 | void fd_bo_del(struct fd_bo *bo) |
| 146 | { |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 147 | struct fd_device *dev; |
| 148 | |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 149 | if (!atomic_dec_and_test(&bo->refcnt)) |
| 150 | return; |
| 151 | |
| 152 | if (bo->map) |
| 153 | munmap(bo->map, bo->size); |
| 154 | |
| 155 | if (bo->handle) { |
| 156 | struct drm_gem_close req = { |
| 157 | .handle = bo->handle, |
| 158 | }; |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 159 | pthread_mutex_lock(&table_lock); |
| 160 | drmHashDelete(bo->dev->handle_table, bo->handle); |
Rob Clark | 3586337 | 2013-05-17 16:13:02 -0400 | [diff] [blame] | 161 | if (bo->name) |
| 162 | drmHashDelete(bo->dev->name_table, bo->name); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 163 | drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_CLOSE, &req); |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 164 | pthread_mutex_unlock(&table_lock); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 165 | } |
| 166 | |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 167 | dev = bo->dev; |
| 168 | bo->funcs->destroy(bo); |
| 169 | |
| 170 | fd_device_del(dev); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 171 | } |
| 172 | |
| 173 | int fd_bo_get_name(struct fd_bo *bo, uint32_t *name) |
| 174 | { |
| 175 | if (!bo->name) { |
| 176 | struct drm_gem_flink req = { |
| 177 | .handle = bo->handle, |
| 178 | }; |
| 179 | int ret; |
| 180 | |
| 181 | ret = drmIoctl(bo->dev->fd, DRM_IOCTL_GEM_FLINK, &req); |
| 182 | if (ret) { |
| 183 | return ret; |
| 184 | } |
| 185 | |
Rob Clark | 0b89e27 | 2013-05-15 13:18:02 -0400 | [diff] [blame] | 186 | pthread_mutex_lock(&table_lock); |
| 187 | set_name(bo, req.name); |
| 188 | pthread_mutex_unlock(&table_lock); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | *name = bo->name; |
| 192 | |
| 193 | return 0; |
| 194 | } |
| 195 | |
| 196 | uint32_t fd_bo_handle(struct fd_bo *bo) |
| 197 | { |
| 198 | return bo->handle; |
| 199 | } |
| 200 | |
| 201 | uint32_t fd_bo_size(struct fd_bo *bo) |
| 202 | { |
| 203 | return bo->size; |
| 204 | } |
| 205 | |
| 206 | void * fd_bo_map(struct fd_bo *bo) |
| 207 | { |
| 208 | if (!bo->map) { |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 209 | uint64_t offset; |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 210 | int ret; |
| 211 | |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 212 | ret = bo->funcs->offset(bo, &offset); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 213 | if (ret) { |
| 214 | return NULL; |
| 215 | } |
| 216 | |
| 217 | bo->map = mmap(0, bo->size, PROT_READ | PROT_WRITE, MAP_SHARED, |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 218 | bo->dev->fd, offset); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 219 | if (bo->map == MAP_FAILED) { |
| 220 | ERROR_MSG("mmap failed: %s", strerror(errno)); |
| 221 | bo->map = NULL; |
| 222 | } |
| 223 | } |
| 224 | return bo->map; |
| 225 | } |
| 226 | |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 227 | /* a bit odd to take the pipe as an arg, but it's a, umm, quirk of kgsl.. */ |
| 228 | int fd_bo_cpu_prep(struct fd_bo *bo, struct fd_pipe *pipe, uint32_t op) |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 229 | { |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 230 | return bo->funcs->cpu_prep(bo, pipe, op); |
Rob Clark | 41fc2cc | 2012-10-07 18:57:31 -0500 | [diff] [blame] | 231 | } |
Rob Clark | b3a3a77 | 2013-04-25 16:36:15 -0400 | [diff] [blame] | 232 | |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 233 | void fd_bo_cpu_fini(struct fd_bo *bo) |
Rob Clark | b3a3a77 | 2013-04-25 16:36:15 -0400 | [diff] [blame] | 234 | { |
Rob Clark | b2b1885 | 2013-07-10 15:20:04 -0400 | [diff] [blame] | 235 | bo->funcs->cpu_fini(bo); |
Rob Clark | b3a3a77 | 2013-04-25 16:36:15 -0400 | [diff] [blame] | 236 | } |