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