freedreno/freedreno_pipe.c

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