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