1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */ 2 3 /* 4 * Copyright (C) 2013 Rob Clark <robclark (at) 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 (at) freedesktop.org> 27 */ 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 msm_pipe_get_param(struct fd_pipe *pipe, 52 enum fd_param_id param, uint64_t *value) 53 { 54 struct msm_pipe *msm_pipe = to_msm_pipe(pipe); 55 switch(param) { 56 case FD_DEVICE_ID: // XXX probably get rid of this.. 57 case FD_GPU_ID: 58 *value = msm_pipe->gpu_id; 59 return 0; 60 case FD_GMEM_SIZE: 61 *value = msm_pipe->gmem; 62 return 0; 63 case FD_CHIP_ID: 64 *value = msm_pipe->chip_id; 65 return 0; 66 case FD_MAX_FREQ: 67 return query_param(pipe, MSM_PARAM_MAX_FREQ, value); 68 case FD_TIMESTAMP: 69 return query_param(pipe, MSM_PARAM_TIMESTAMP, value); 70 case FD_NR_RINGS: 71 return query_param(pipe, MSM_PARAM_NR_RINGS, value); 72 default: 73 ERROR_MSG("invalid param id: %d", param); 74 return -1; 75 } 76 } 77 78 static int msm_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp, 79 uint64_t timeout) 80 { 81 struct fd_device *dev = pipe->dev; 82 struct drm_msm_wait_fence req = { 83 .fence = timestamp, 84 .queueid = to_msm_pipe(pipe)->queue_id, 85 }; 86 int ret; 87 88 get_abs_timeout(&req.timeout, timeout); 89 90 ret = drmCommandWrite(dev->fd, DRM_MSM_WAIT_FENCE, &req, sizeof(req)); 91 if (ret) { 92 ERROR_MSG("wait-fence failed! %d (%s)", ret, strerror(errno)); 93 return ret; 94 } 95 96 return 0; 97 } 98 99 static int open_submitqueue(struct fd_pipe *pipe, uint32_t prio) 100 { 101 struct drm_msm_submitqueue req = { 102 .flags = 0, 103 .prio = prio, 104 }; 105 uint64_t nr_rings = 1; 106 int ret; 107 108 if (fd_device_version(pipe->dev) < FD_VERSION_SUBMIT_QUEUES) { 109 to_msm_pipe(pipe)->queue_id = 0; 110 return 0; 111 } 112 113 msm_pipe_get_param(pipe, FD_NR_RINGS, &nr_rings); 114 115 req.prio = MIN2(req.prio, MAX2(nr_rings, 1) - 1); 116 117 ret = drmCommandWriteRead(pipe->dev->fd, DRM_MSM_SUBMITQUEUE_NEW, 118 &req, sizeof(req)); 119 if (ret) { 120 ERROR_MSG("could not create submitqueue! %d (%s)", ret, strerror(errno)); 121 return ret; 122 } 123 124 to_msm_pipe(pipe)->queue_id = req.id; 125 return 0; 126 } 127 128 static void close_submitqueue(struct fd_pipe *pipe, uint32_t queue_id) 129 { 130 if (fd_device_version(pipe->dev) < FD_VERSION_SUBMIT_QUEUES) 131 return; 132 133 drmCommandWrite(pipe->dev->fd, DRM_MSM_SUBMITQUEUE_CLOSE, 134 &queue_id, sizeof(queue_id)); 135 } 136 137 static void msm_pipe_destroy(struct fd_pipe *pipe) 138 { 139 struct msm_pipe *msm_pipe = to_msm_pipe(pipe); 140 close_submitqueue(pipe, msm_pipe->queue_id); 141 free(msm_pipe); 142 } 143 144 static const struct fd_pipe_funcs funcs = { 145 .ringbuffer_new = msm_ringbuffer_new, 146 .get_param = msm_pipe_get_param, 147 .wait = msm_pipe_wait, 148 .destroy = msm_pipe_destroy, 149 }; 150 151 static uint64_t get_param(struct fd_pipe *pipe, uint32_t param) 152 { 153 uint64_t value; 154 int ret = query_param(pipe, param, &value); 155 if (ret) { 156 ERROR_MSG("get-param failed! %d (%s)", ret, strerror(errno)); 157 return 0; 158 } 159 return value; 160 } 161 162 drm_private struct fd_pipe * msm_pipe_new(struct fd_device *dev, 163 enum fd_pipe_id id, uint32_t prio) 164 { 165 static const uint32_t pipe_id[] = { 166 [FD_PIPE_3D] = MSM_PIPE_3D0, 167 [FD_PIPE_2D] = MSM_PIPE_2D0, 168 }; 169 struct msm_pipe *msm_pipe = NULL; 170 struct fd_pipe *pipe = NULL; 171 172 msm_pipe = calloc(1, sizeof(*msm_pipe)); 173 if (!msm_pipe) { 174 ERROR_MSG("allocation failed"); 175 goto fail; 176 } 177 178 pipe = &msm_pipe->base; 179 pipe->funcs = &funcs; 180 181 /* initialize before get_param(): */ 182 pipe->dev = dev; 183 msm_pipe->pipe = pipe_id[id]; 184 185 /* these params should be supported since the first version of drm/msm: */ 186 msm_pipe->gpu_id = get_param(pipe, MSM_PARAM_GPU_ID); 187 msm_pipe->gmem = get_param(pipe, MSM_PARAM_GMEM_SIZE); 188 msm_pipe->chip_id = get_param(pipe, MSM_PARAM_CHIP_ID); 189 190 if (! msm_pipe->gpu_id) 191 goto fail; 192 193 INFO_MSG("Pipe Info:"); 194 INFO_MSG(" GPU-id: %d", msm_pipe->gpu_id); 195 INFO_MSG(" Chip-id: 0x%08x", msm_pipe->chip_id); 196 INFO_MSG(" GMEM size: 0x%08x", msm_pipe->gmem); 197 198 if (open_submitqueue(pipe, prio)) 199 goto fail; 200 201 return pipe; 202 fail: 203 if (pipe) 204 fd_pipe_del(pipe); 205 return NULL; 206 } 207
