freedreno/kgsl/kgsl_pipe.c

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