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 case FD_MAX_FREQ: 54 case FD_TIMESTAMP: 55 /* unsupported on kgsl */ 56 return -1; 57 default: 58 ERROR_MSG("invalid param id: %d", param); 59 return -1; 60 } 61 } 62 63 static int kgsl_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp, 64 uint64_t timeout) 65 { 66 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe); 67 struct kgsl_device_waittimestamp req = { 68 .timestamp = timestamp, 69 .timeout = 5000, 70 }; 71 int ret; 72 73 do { 74 ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_DEVICE_WAITTIMESTAMP, &req); 75 } while ((ret == -1) && ((errno == EINTR) || (errno == EAGAIN))); 76 if (ret) 77 ERROR_MSG("waittimestamp failed! %d (%s)", ret, strerror(errno)); 78 else 79 kgsl_pipe_process_pending(kgsl_pipe, timestamp); 80 return ret; 81 } 82 83 drm_private int kgsl_pipe_timestamp(struct kgsl_pipe *kgsl_pipe, 84 uint32_t *timestamp) 85 { 86 struct kgsl_cmdstream_readtimestamp req = { 87 .type = KGSL_TIMESTAMP_RETIRED 88 }; 89 int ret = ioctl(kgsl_pipe->fd, IOCTL_KGSL_CMDSTREAM_READTIMESTAMP, &req); 90 if (ret) { 91 ERROR_MSG("readtimestamp failed! %d (%s)", 92 ret, strerror(errno)); 93 return ret; 94 } 95 *timestamp = req.timestamp; 96 return 0; 97 } 98 99 static void kgsl_pipe_destroy(struct fd_pipe *pipe) 100 { 101 struct kgsl_pipe *kgsl_pipe = to_kgsl_pipe(pipe); 102 struct kgsl_drawctxt_destroy req = { 103 .drawctxt_id = kgsl_pipe->drawctxt_id, 104 }; 105 106 if (kgsl_pipe->drawctxt_id) 107 ioctl(kgsl_pipe->fd, IOCTL_KGSL_DRAWCTXT_DESTROY, &req); 108 109 if (kgsl_pipe->fd >= 0) 110 close(kgsl_pipe->fd); 111 112 free(kgsl_pipe); 113 } 114 115 static const struct fd_pipe_funcs funcs = { 116 .ringbuffer_new = kgsl_ringbuffer_new, 117 .get_param = kgsl_pipe_get_param, 118 .wait = kgsl_pipe_wait, 119 .destroy = kgsl_pipe_destroy, 120 }; 121 122 drm_private int is_kgsl_pipe(struct fd_pipe *pipe) 123 { 124 return pipe->funcs == &funcs; 125 } 126 127 /* add buffer to submit list when it is referenced in cmdstream: */ 128 drm_private void kgsl_pipe_add_submit(struct kgsl_pipe *kgsl_pipe, 129 struct kgsl_bo *kgsl_bo) 130 { 131 struct fd_pipe *pipe = &kgsl_pipe->base; 132 struct fd_bo *bo = &kgsl_bo->base; 133 struct list_head *list = &kgsl_bo->list[pipe->id]; 134 if (LIST_IS_EMPTY(list)) { 135 fd_bo_ref(bo); 136 } else { 137 list_del(list); 138 } 139 list_addtail(list, &kgsl_pipe->submit_list); 140 } 141 142 /* prepare buffers on submit list before flush: */ 143 drm_private void kgsl_pipe_pre_submit(struct kgsl_pipe *kgsl_pipe) 144 { 145 struct fd_pipe *pipe = &kgsl_pipe->base; 146 struct kgsl_bo *kgsl_bo = NULL; 147 148 if (!kgsl_pipe->p3d) 149 kgsl_pipe->p3d = fd_pipe_new(pipe->dev, FD_PIPE_3D); 150 151 LIST_FOR_EACH_ENTRY(kgsl_bo, &kgsl_pipe->submit_list, list[pipe->id]) { 152 uint32_t timestamp = kgsl_bo_get_timestamp(kgsl_bo); 153 if (timestamp) 154 fd_pipe_wait(kgsl_pipe->p3d, timestamp); 155 } 156 } 157 158 /* process buffers on submit list after flush: */ 159 drm_private void kgsl_pipe_post_submit(struct kgsl_pipe *kgsl_pipe, 160 uint32_t timestamp) 161 { 162 struct fd_pipe *pipe = &kgsl_pipe->base; 163 struct kgsl_bo *kgsl_bo = NULL, *tmp; 164 165 LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->submit_list, list[pipe->id]) { 166 struct list_head *list = &kgsl_bo->list[pipe->id]; 167 list_del(list); 168 kgsl_bo->timestamp[pipe->id] = timestamp; 169 list_addtail(list, &kgsl_pipe->pending_list); 170 171 kgsl_bo_set_timestamp(kgsl_bo, timestamp); 172 } 173 174 if (!kgsl_pipe_timestamp(kgsl_pipe, ×tamp)) 175 kgsl_pipe_process_pending(kgsl_pipe, timestamp); 176 } 177 178 drm_private void kgsl_pipe_process_pending(struct kgsl_pipe *kgsl_pipe, 179 uint32_t timestamp) 180 { 181 struct fd_pipe *pipe = &kgsl_pipe->base; 182 struct kgsl_bo *kgsl_bo = NULL, *tmp; 183 184 LIST_FOR_EACH_ENTRY_SAFE(kgsl_bo, tmp, &kgsl_pipe->pending_list, list[pipe->id]) { 185 struct list_head *list = &kgsl_bo->list[pipe->id]; 186 if (kgsl_bo->timestamp[pipe->id] > timestamp) 187 return; 188 list_delinit(list); 189 kgsl_bo->timestamp[pipe->id] = 0; 190 fd_bo_del(&kgsl_bo->base); 191 } 192 } 193 194 static int getprop(int fd, enum kgsl_property_type type, 195 void *value, int sizebytes) 196 { 197 struct kgsl_device_getproperty req = { 198 .type = type, 199 .value = value, 200 .sizebytes = sizebytes, 201 }; 202 return ioctl(fd, IOCTL_KGSL_DEVICE_GETPROPERTY, &req); 203 } 204 205 #define GETPROP(fd, prop, x) do { \ 206 if (getprop((fd), KGSL_PROP_##prop, &(x), sizeof(x))) { \ 207 ERROR_MSG("failed to get property: " #prop); \ 208 goto fail; \ 209 } } while (0) 210 211 212 drm_private struct fd_pipe * kgsl_pipe_new(struct fd_device *dev, 213 enum fd_pipe_id id) 214 { 215 static const char *paths[] = { 216 [FD_PIPE_3D] = "/dev/kgsl-3d0", 217 [FD_PIPE_2D] = "/dev/kgsl-2d0", 218 }; 219 struct kgsl_drawctxt_create req = { 220 .flags = 0x2000, /* ??? */ 221 }; 222 struct kgsl_pipe *kgsl_pipe = NULL; 223 struct fd_pipe *pipe = NULL; 224 int ret, fd; 225 226 fd = open(paths[id], O_RDWR); 227 if (fd < 0) { 228 ERROR_MSG("could not open %s device: %d (%s)", 229 paths[id], fd, strerror(errno)); 230 goto fail; 231 } 232 233 ret = ioctl(fd, IOCTL_KGSL_DRAWCTXT_CREATE, &req); 234 if (ret) { 235 ERROR_MSG("failed to allocate context: %d (%s)", 236 ret, strerror(errno)); 237 goto fail; 238 } 239 240 kgsl_pipe = calloc(1, sizeof(*kgsl_pipe)); 241 if (!kgsl_pipe) { 242 ERROR_MSG("allocation failed"); 243 goto fail; 244 } 245 246 pipe = &kgsl_pipe->base; 247 pipe->funcs = &funcs; 248 249 kgsl_pipe->fd = fd; 250 kgsl_pipe->drawctxt_id = req.drawctxt_id; 251 252 list_inithead(&kgsl_pipe->submit_list); 253 list_inithead(&kgsl_pipe->pending_list); 254 255 GETPROP(fd, VERSION, kgsl_pipe->version); 256 GETPROP(fd, DEVICE_INFO, kgsl_pipe->devinfo); 257 258 if (kgsl_pipe->devinfo.gpu_id >= 500) { 259 ERROR_MSG("64b unsupported with kgsl"); 260 goto fail; 261 } 262 263 INFO_MSG("Pipe Info:"); 264 INFO_MSG(" Device: %s", paths[id]); 265 INFO_MSG(" Chip-id: %d.%d.%d.%d", 266 (kgsl_pipe->devinfo.chip_id >> 24) & 0xff, 267 (kgsl_pipe->devinfo.chip_id >> 16) & 0xff, 268 (kgsl_pipe->devinfo.chip_id >> 8) & 0xff, 269 (kgsl_pipe->devinfo.chip_id >> 0) & 0xff); 270 INFO_MSG(" Device-id: %d", kgsl_pipe->devinfo.device_id); 271 INFO_MSG(" GPU-id: %d", kgsl_pipe->devinfo.gpu_id); 272 INFO_MSG(" MMU enabled: %d", kgsl_pipe->devinfo.mmu_enabled); 273 INFO_MSG(" GMEM Base addr: 0x%08x", kgsl_pipe->devinfo.gmem_gpubaseaddr); 274 INFO_MSG(" GMEM size: 0x%08x", kgsl_pipe->devinfo.gmem_sizebytes); 275 INFO_MSG(" Driver version: %d.%d", 276 kgsl_pipe->version.drv_major, kgsl_pipe->version.drv_minor); 277 INFO_MSG(" Device version: %d.%d", 278 kgsl_pipe->version.dev_major, kgsl_pipe->version.dev_minor); 279 280 return pipe; 281 fail: 282 if (pipe) 283 fd_pipe_del(pipe); 284 return NULL; 285 } 286
