src/freedreno/drm/msm_pipe.c

   1 /*
   2  * Copyright (C) 2012-2018 Rob Clark <robclark@freedesktop.org>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #include "util/slab.h"
  28
  29 #include "msm_priv.h"
  30
  31 static int query_param(struct fd_pipe *pipe, uint32_t param,
  32                 uint64_t *value)
  33 {
  34         struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
  35         struct drm_msm_param req = {
  36                         .pipe = msm_pipe->pipe,
  37                         .param = param,
  38         };
  39         int ret;
  40
  41         ret = drmCommandWriteRead(pipe->dev->fd, DRM_MSM_GET_PARAM,
  42                         &req, sizeof(req));
  43         if (ret)
  44                 return ret;
  45
  46         *value = req.value;
  47
  48         return 0;
  49 }
  50
  51 static int query_queue_param(struct fd_pipe *pipe, uint32_t param,
  52                 uint64_t *value)
  53 {
  54         struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
  55         struct drm_msm_submitqueue_query req = {
  56                         .data = VOID2U64(value),
  57                         .id = msm_pipe->queue_id,
  58                         .param = param,
  59                         .len = sizeof(*value),
  60         };
  61         int ret;
  62
  63         ret = drmCommandWriteRead(pipe->dev->fd, DRM_MSM_SUBMITQUEUE_QUERY,
  64                         &req, sizeof(req));
  65         if (ret)
  66                 return ret;
  67
  68         return 0;
  69 }
  70
  71 static int msm_pipe_get_param(struct fd_pipe *pipe,
  72                 enum fd_param_id param, uint64_t *value)
  73 {
  74         struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
  75         switch(param) {
  76         case FD_DEVICE_ID: // XXX probably get rid of this..
  77         case FD_GPU_ID:
  78                 *value = msm_pipe->gpu_id;
  79                 return 0;
  80         case FD_GMEM_SIZE:
  81                 *value = msm_pipe->gmem;
  82                 return 0;
  83         case FD_CHIP_ID:
  84                 *value = msm_pipe->chip_id;
  85                 return 0;
  86         case FD_MAX_FREQ:
  87                 return query_param(pipe, MSM_PARAM_MAX_FREQ, value);
  88         case FD_TIMESTAMP:
  89                 return query_param(pipe, MSM_PARAM_TIMESTAMP, value);
  90         case FD_NR_RINGS:
  91                 return query_param(pipe, MSM_PARAM_NR_RINGS, value);
  92         case FD_PP_PGTABLE:
  93                 return query_param(pipe, MSM_PARAM_PP_PGTABLE, value);
  94         case FD_CTX_FAULTS:
  95                 return query_queue_param(pipe, MSM_SUBMITQUEUE_PARAM_FAULTS, value);
  96         case FD_GLOBAL_FAULTS:
  97                 return query_param(pipe, MSM_PARAM_FAULTS, value);
  98         default:
  99                 ERROR_MSG("invalid param id: %d", param);
 100                 return -1;
 101         }
 102 }
 103
 104 static int msm_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp,
 105                 uint64_t timeout)
 106 {
 107         struct fd_device *dev = pipe->dev;
 108         struct drm_msm_wait_fence req = {
 109                         .fence = timestamp,
 110                         .queueid = to_msm_pipe(pipe)->queue_id,
 111         };
 112         int ret;
 113
 114         get_abs_timeout(&req.timeout, timeout);
 115
 116         ret = drmCommandWrite(dev->fd, DRM_MSM_WAIT_FENCE, &req, sizeof(req));
 117         if (ret) {
 118                 ERROR_MSG("wait-fence failed! %d (%s)", ret, strerror(errno));
 119                 return ret;
 120         }
 121
 122         return 0;
 123 }
 124
 125 static int open_submitqueue(struct fd_pipe *pipe, uint32_t prio)
 126 {
 127         struct drm_msm_submitqueue req = {
 128                 .flags = 0,
 129                 .prio = prio,
 130         };
 131         uint64_t nr_rings = 1;
 132         int ret;
 133
 134         if (fd_device_version(pipe->dev) < FD_VERSION_SUBMIT_QUEUES) {
 135                 to_msm_pipe(pipe)->queue_id = 0;
 136                 return 0;
 137         }
 138
 139         msm_pipe_get_param(pipe, FD_NR_RINGS, &nr_rings);
 140
 141         req.prio = MIN2(req.prio, MAX2(nr_rings, 1) - 1);
 142
 143         ret = drmCommandWriteRead(pipe->dev->fd, DRM_MSM_SUBMITQUEUE_NEW,
 144                         &req, sizeof(req));
 145         if (ret) {
 146                 ERROR_MSG("could not create submitqueue! %d (%s)", ret, strerror(errno));
 147                 return ret;
 148         }
 149
 150         to_msm_pipe(pipe)->queue_id = req.id;
 151         return 0;
 152 }
 153
 154 static void close_submitqueue(struct fd_pipe *pipe, uint32_t queue_id)
 155 {
 156         if (fd_device_version(pipe->dev) < FD_VERSION_SUBMIT_QUEUES)
 157                 return;
 158
 159         drmCommandWrite(pipe->dev->fd, DRM_MSM_SUBMITQUEUE_CLOSE,
 160                         &queue_id, sizeof(queue_id));
 161 }
 162
 163 static void msm_pipe_destroy(struct fd_pipe *pipe)
 164 {
 165         struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
 166         close_submitqueue(pipe, msm_pipe->queue_id);
 167         free(msm_pipe);
 168 }
 169
 170 static const struct fd_pipe_funcs sp_funcs = {
 171                 .ringbuffer_new_object = msm_ringbuffer_sp_new_object,
 172                 .submit_new = msm_submit_sp_new,
 173                 .get_param = msm_pipe_get_param,
 174                 .wait = msm_pipe_wait,
 175                 .destroy = msm_pipe_destroy,
 176 };
 177
 178 static const struct fd_pipe_funcs legacy_funcs = {
 179                 .ringbuffer_new_object = msm_ringbuffer_new_object,
 180                 .submit_new = msm_submit_new,
 181                 .get_param = msm_pipe_get_param,
 182                 .wait = msm_pipe_wait,
 183                 .destroy = msm_pipe_destroy,
 184 };
 185
 186 static uint64_t get_param(struct fd_pipe *pipe, uint32_t param)
 187 {
 188         uint64_t value;
 189         int ret = query_param(pipe, param, &value);
 190         if (ret) {
 191                 ERROR_MSG("get-param failed! %d (%s)", ret, strerror(errno));
 192                 return 0;
 193         }
 194         return value;
 195 }
 196
 197 struct fd_pipe * msm_pipe_new(struct fd_device *dev,
 198                 enum fd_pipe_id id, uint32_t prio)
 199 {
 200         static const uint32_t pipe_id[] = {
 201                         [FD_PIPE_3D] = MSM_PIPE_3D0,
 202                         [FD_PIPE_2D] = MSM_PIPE_2D0,
 203         };
 204         struct msm_pipe *msm_pipe = NULL;
 205         struct fd_pipe *pipe = NULL;
 206
 207         msm_pipe = calloc(1, sizeof(*msm_pipe));
 208         if (!msm_pipe) {
 209                 ERROR_MSG("allocation failed");
 210                 goto fail;
 211         }
 212
 213         pipe = &msm_pipe->base;
 214
 215         if (fd_device_version(dev) >= FD_VERSION_SOFTPIN) {
 216                 pipe->funcs = &sp_funcs;
 217         } else {
 218                 pipe->funcs = &legacy_funcs;
 219         }
 220
 221         /* initialize before get_param(): */
 222         pipe->dev = dev;
 223         msm_pipe->pipe = pipe_id[id];
 224
 225         /* these params should be supported since the first version of drm/msm: */
 226         msm_pipe->gpu_id = get_param(pipe, MSM_PARAM_GPU_ID);
 227         msm_pipe->gmem   = get_param(pipe, MSM_PARAM_GMEM_SIZE);
 228         msm_pipe->chip_id = get_param(pipe, MSM_PARAM_CHIP_ID);
 229
 230         if (! msm_pipe->gpu_id)
 231                 goto fail;
 232
 233         INFO_MSG("Pipe Info:");
 234         INFO_MSG(" GPU-id:          %d", msm_pipe->gpu_id);
 235         INFO_MSG(" Chip-id:         0x%08x", msm_pipe->chip_id);
 236         INFO_MSG(" GMEM size:       0x%08x", msm_pipe->gmem);
 237
 238         if (open_submitqueue(pipe, prio))
 239                 goto fail;
 240
 241         return pipe;
 242 fail:
 243         if (pipe)
 244                 fd_pipe_del(pipe);
 245         return NULL;
 246 }