1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ 2 3 /* 4 * Copyright (C) 2013 Rob Clark <robclark (at) 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 (at) freedesktop.org> 27 */ 28 29 #ifdef HAVE_CONFIG_H 30 # include <config.h> 31 #endif 32 33 #include "kgsl_priv.h" 34 35 36 static int kgsl_pipe_get_param(struct fd_pipe *pipe, 37 enum fd_param_id param, uint64_t *value) 38 { 39 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe); 40 switch (param) { 41 case FD_DEVICE_ID: 42 *value = kgsl_pipe->devinfo.device_id; 43 return 0; 44 case FD_GPU_ID: 45 *value = kgsl_pipe->devinfo.gpu_id; 46 return 0; 47 case FD_GMEM_SIZE: 48 *value = kgsl_pipe->devinfo.gmem_sizebytes; 49 return 0; 50 case FD_CHIP_ID: 51 *value = kgsl_pipe->devinfo.chip_id; 52 return 0; 53 default: 54 ERROR_MSG("invalid param id: %d", param); 55 return -1; 56 } 57 } 58 59 static int kgsl_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp, 60 uint64_t timeout) 61 { 62 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe); 63 struct kgsl_device_waittimestamp req = { 64 .timestamp = timestamp, 65 .timeout = 5000, 66 }; 67 int ret; 68 69 do { 70 ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_DEVICE_WAITTIMESTAMP, &req); 71 } while ((ret == -1) && ((errno == EINTR) || (errno == EAGAIN))); 72 if (ret) 73 ERROR_MSG("waittimestamp failed! %d (%s)", ret, strerror(errno)); 74 else 75 kgsl_pipe_process_pending(kgsl_pipe, timestamp); 76 return ret; 77 } 78 79 drm_private int kgsl_pipe_timestamp(struct kgsl_pipe *kgsl_pipe, 80 uint32_t *timestamp) 81 { 82 struct kgsl_cmdstream_readtimestamp req = { 83 .type = KGSL_TIMESTAMP_RETIRED 84 }; 85 int ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_CMDSTREAM_READTIMESTAMP, &req); 86 if (ret) { 87 ERROR_MSG("readtimestamp failed! %d (%s)", 88 ret, strerror(errno)); 89 return ret; 90 } 91 *timestamp = req.timestamp; 92 return 0; 93 } 94 95 static void kgsl_pipe_destroy(struct fd_pipe *pipe) 96 { 97 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe); 98 struct kgsl_drawctxt_destroy req = { 99 .drawctxt_id = kgsl_pipe->drawctxt_id, 100 }; 101 102 if (kgsl_pipe->drawctxt_id) 103 ioctl(kgsl_pipe->fd, IOCTL_KGSL_DRAWCTXT_DESTROY, &req); 104 105 if (kgsl_pipe->fd >= 0) 106 close(kgsl_pipe->fd); 107 108 free(kgsl_pipe); 109 } 110 111 static const struct fd_pipe_funcs funcs = { 112 .ringbuffer_new = kgsl_ringbuffer_new, 113 .get_param = kgsl_pipe_get_param, 114 .wait = kgsl_pipe_wait, 115 .destroy = kgsl_pipe_destroy, 116 }; 117 118 drm_private int is_kgsl_pipe(struct fd_pipe *pipe) 119 { 120 return pipe->funcs == &funcs; 121 } 122 123 /* add buffer to submit list when it is referenced in cmdstream: */ 124 drm_private void kgsl_pipe_add_submit(struct kgsl_pipe *kgsl_pipe, 125 struct kgsl_bo *kgsl_bo) 126 { 127 struct fd_pipe *pipe = &kgsl_pipe->base; 128 struct fd_bo *bo = &kgsl_bo->base; 129 struct list_head *list = &kgsl_bo->list[pipe->id]; 130 if (LIST_IS_EMPTY(list)) { 131 fd_bo_ref(bo); 132 } else { 133 list_del(list); 134 } 135 list_addtail(list, &kgsl_pipe->submit_list); 136 } 137 138 /* prepare buffers on submit list before flush: */ 139 drm_private void kgsl_pipe_pre_submit(struct kgsl_pipe *kgsl_pipe) 140 { 141 struct fd_pipe *pipe = &kgsl_pipe->base; 142 struct kgsl_bo *kgsl_bo = NULL; 143 144 if (!kgsl_pipe->p3d) 145 kgsl_pipe->p3d = fd_pipe_new(pipe->dev, FD_PIPE_3D); 146 147 LIST_FOR_EACH_ENTRY(kgsl_bo, &kgsl_pipe->submit_list, list[pipe->id]) { 148 uint32_t timestamp = kgsl_bo_get_timestamp(kgsl_bo); 149 if (timestamp) 150 fd_pipe_wait(kgsl_pipe->p3d, timestamp); 151 } 152 } 153 154 /* process buffers on submit list after flush: */ 155 drm_private void kgsl_pipe_post_submit(struct kgsl_pipe *kgsl_pipe, 156 uint32_t timestamp) 157 { 158 struct fd_pipe *pipe = &kgsl_pipe->base; 159 struct kgsl_bo *kgsl_bo = NULL, *tmp; 160 161 LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->submit_list, list[pipe->id]) { 162 struct list_head *list = &kgsl_bo->list[pipe->id]; 163 list_del(list); 164 kgsl_bo->timestamp[pipe->id] = timestamp; 165 list_addtail(list, &kgsl_pipe->pending_list); 166 167 kgsl_bo_set_timestamp(kgsl_bo, timestamp); 168 } 169 170 if (!kgsl_pipe_timestamp(kgsl_pipe, ×tamp)) 171 kgsl_pipe_process_pending(kgsl_pipe, timestamp); 172 } 173 174 drm_private void kgsl_pipe_process_pending(struct kgsl_pipe *kgsl_pipe, 175 uint32_t timestamp) 176 { 177 struct fd_pipe *pipe = &kgsl_pipe->base; 178 struct kgsl_bo *kgsl_bo = NULL, *tmp; 179 180 LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->pending_list, list[pipe->id]) { 181 struct list_head *list = &kgsl_bo->list[pipe->id]; 182 if (kgsl_bo->timestamp[pipe->id] > timestamp) 183 return; 184 list_delinit(list); 185 kgsl_bo->timestamp[pipe->id] = 0; 186 fd_bo_del(&kgsl_bo->base); 187 } 188 } 189 190 static int getprop(int fd, enum kgsl_property_type type, 191 void *value, int sizebytes) 192 { 193 struct kgsl_device_getproperty req = { 194 .type = type, 195 .value = value, 196 .sizebytes = sizebytes, 197 }; 198 return ioctl(fd, IOCTL_KGSL_DEVICE_GETPROPERTY, &req); 199 } 200 201 #define GETPROP(fd, prop, x) do { \ 202 if (getprop((fd), KGSL_PROP_##prop, &(x), sizeof(x))) { \ 203 ERROR_MSG("failed to get property: " #prop); \ 204 goto fail; \ 205 } } while (0) 206 207 208 drm_private struct fd_pipe * kgsl_pipe_new(struct fd_device *dev, 209 enum fd_pipe_id id) 210 { 211 static const char *paths[] = { 212 [FD_PIPE_3D] = "/dev/kgsl-3d0", 213 [FD_PIPE_2D] = "/dev/kgsl-2d0", 214 }; 215 struct kgsl_drawctxt_create req = { 216 .flags = 0x2000, /* ??? */ 217 }; 218 struct kgsl_pipe *kgsl_pipe = NULL; 219 struct fd_pipe *pipe = NULL; 220 int ret, fd; 221 222 fd = open(paths[id], O_RDWR); 223 if (fd < 0) { 224 ERROR_MSG("could not open %s device: %d (%s)", 225 paths[id], fd, strerror(errno)); 226 goto fail; 227 } 228 229 ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_CREATE, &req); 230 if (ret) { 231 ERROR_MSG("failed to allocate context: %d (%s)", 232 ret, strerror(errno)); 233 goto fail; 234 } 235 236 kgsl_pipe = calloc(1, sizeof(*kgsl_pipe)); 237 if (!kgsl_pipe) { 238 ERROR_MSG("allocation failed"); 239 goto fail; 240 } 241 242 pipe = &kgsl_pipe->base; 243 pipe->funcs = &funcs; 244 245 kgsl_pipe->fd = fd; 246 kgsl_pipe->drawctxt_id = req.drawctxt_id; 247 248 list_inithead(&kgsl_pipe->submit_list); 249 list_inithead(&kgsl_pipe->pending_list); 250 251 GETPROP(fd, VERSION, kgsl_pipe->version); 252 GETPROP(fd, DEVICE_INFO, kgsl_pipe->devinfo); 253 254 INFO_MSG("Pipe Info:"); 255 INFO_MSG(" Device: %s", paths[id]); 256 INFO_MSG(" Chip-id: %d.%d.%d.%d", 257 (kgsl_pipe->devinfo.chip_id >> 24) & 0xff, 258 (kgsl_pipe->devinfo.chip_id >> 16) & 0xff, 259 (kgsl_pipe->devinfo.chip_id >> 8) & 0xff, 260 (kgsl_pipe->devinfo.chip_id >> 0) & 0xff); 261 INFO_MSG(" Device-id: %d", kgsl_pipe->devinfo.device_id); 262 INFO_MSG(" GPU-id: %d", kgsl_pipe->devinfo.gpu_id); 263 INFO_MSG(" MMU enabled: %d", kgsl_pipe->devinfo.mmu_enabled); 264 INFO_MSG(" GMEM Base addr: 0x%08x", kgsl_pipe->devinfo.gmem_gpubaseaddr); 265 INFO_MSG(" GMEM size: 0x%08x", kgsl_pipe->devinfo.gmem_sizebytes); 266 INFO_MSG(" Driver version: %d.%d", 267 kgsl_pipe->version.drv_major, kgsl_pipe->version.drv_minor); 268 INFO_MSG(" Device version: %d.%d", 269 kgsl_pipe->version.dev_major, kgsl_pipe->version.dev_minor); 270 271 return pipe; 272 fail: 273 if (pipe) 274 fd_pipe_del(pipe); 275 return NULL; 276 } 277
