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         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, &timestamp))
 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         INFO_MSG("Pipe Info:");
 259         INFO_MSG(" Device:          %s", paths[id]);
 260         INFO_MSG(" Chip-id:         %d.%d.%d.%d",
 261                         (kgsl_pipe->devinfo.chip_id >> 24) & 0xff,
 262                         (kgsl_pipe->devinfo.chip_id >> 16) & 0xff,
 263                         (kgsl_pipe->devinfo.chip_id >>  8) & 0xff,
 264                         (kgsl_pipe->devinfo.chip_id >>  0) & 0xff);
 265         INFO_MSG(" Device-id:       %d", kgsl_pipe->devinfo.device_id);
 266         INFO_MSG(" GPU-id:          %d", kgsl_pipe->devinfo.gpu_id);
 267         INFO_MSG(" MMU enabled:     %d", kgsl_pipe->devinfo.mmu_enabled);
 268         INFO_MSG(" GMEM Base addr:  0x%08x", kgsl_pipe->devinfo.gmem_gpubaseaddr);
 269         INFO_MSG(" GMEM size:       0x%08x", kgsl_pipe->devinfo.gmem_sizebytes);
 270         INFO_MSG(" Driver version:  %d.%d",
 271                         kgsl_pipe->version.drv_major, kgsl_pipe->version.drv_minor);
 272         INFO_MSG(" Device version:  %d.%d",
 273                         kgsl_pipe->version.dev_major, kgsl_pipe->version.dev_minor);
 274
 275         return pipe;
 276 fail:
 277         if (pipe)
 278                 fd_pipe_del(pipe);
 279         return NULL;
 280 }