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 #ifdef HAVE_CONFIG_H 30 # include <config.h> 31 #endif 32 33 #include "msm_priv.h" 34 35 static int query_param(struct fd_pipe *pipe, uint32_t param, 36 uint64_t *value) 37 { 38 struct msm_pipe *msm_pipe = to_msm_pipe(pipe); 39 struct drm_msm_param req = { 40 .pipe = msm_pipe->pipe, 41 .param = param, 42 }; 43 int ret; 44 45 ret = drmCommandWriteRead(pipe->dev->fd, DRM_MSM_GET_PARAM, 46 &req, sizeof(req)); 47 if (ret) 48 return ret; 49 50 *value = req.value; 51 52 return 0; 53 } 54 55 static int msm_pipe_get_param(struct fd_pipe *pipe, 56 enum fd_param_id param, uint64_t *value) 57 { 58 struct msm_pipe *msm_pipe = to_msm_pipe(pipe); 59 switch(param) { 60 case FD_DEVICE_ID: // XXX probably get rid of this.. 61 case FD_GPU_ID: 62 *value = msm_pipe->gpu_id; 63 return 0; 64 case FD_GMEM_SIZE: 65 *value = msm_pipe->gmem; 66 return 0; 67 case FD_CHIP_ID: 68 *value = msm_pipe->chip_id; 69 return 0; 70 case FD_MAX_FREQ: 71 return query_param(pipe, MSM_PARAM_MAX_FREQ, value); 72 case FD_TIMESTAMP: 73 return query_param(pipe, MSM_PARAM_TIMESTAMP, value); 74 default: 75 ERROR_MSG("invalid param id: %d", param); 76 return -1; 77 } 78 } 79 80 static int msm_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp, 81 uint64_t timeout) 82 { 83 struct fd_device *dev = pipe->dev; 84 struct drm_msm_wait_fence req = { 85 .fence = timestamp, 86 }; 87 int ret; 88 89 get_abs_timeout(&req.timeout, timeout); 90 91 ret = drmCommandWrite(dev->fd, DRM_MSM_WAIT_FENCE, &req, sizeof(req)); 92 if (ret) { 93 ERROR_MSG("wait-fence failed! %d (%s)", ret, strerror(errno)); 94 return ret; 95 } 96 97 return 0; 98 } 99 100 static void msm_pipe_destroy(struct fd_pipe *pipe) 101 { 102 struct msm_pipe *msm_pipe = to_msm_pipe(pipe); 103 free(msm_pipe); 104 } 105 106 static const struct fd_pipe_funcs funcs = { 107 .ringbuffer_new = msm_ringbuffer_new, 108 .get_param = msm_pipe_get_param, 109 .wait = msm_pipe_wait, 110 .destroy = msm_pipe_destroy, 111 }; 112 113 static uint64_t get_param(struct fd_pipe *pipe, uint32_t param) 114 { 115 uint64_t value; 116 int ret = query_param(pipe, param, &value); 117 if (ret) { 118 ERROR_MSG("get-param failed! %d (%s)", ret, strerror(errno)); 119 return 0; 120 } 121 return value; 122 } 123 124 drm_private struct fd_pipe * msm_pipe_new(struct fd_device *dev, 125 enum fd_pipe_id id) 126 { 127 static const uint32_t pipe_id[] = { 128 [FD_PIPE_3D] = MSM_PIPE_3D0, 129 [FD_PIPE_2D] = MSM_PIPE_2D0, 130 }; 131 struct msm_pipe *msm_pipe = NULL; 132 struct fd_pipe *pipe = NULL; 133 134 msm_pipe = calloc(1, sizeof(*msm_pipe)); 135 if (!msm_pipe) { 136 ERROR_MSG("allocation failed"); 137 goto fail; 138 } 139 140 pipe = &msm_pipe->base; 141 pipe->funcs = &funcs; 142 143 /* initialize before get_param(): */ 144 pipe->dev = dev; 145 msm_pipe->pipe = pipe_id[id]; 146 147 /* these params should be supported since the first version of drm/msm: */ 148 msm_pipe->gpu_id = get_param(pipe, MSM_PARAM_GPU_ID); 149 msm_pipe->gmem = get_param(pipe, MSM_PARAM_GMEM_SIZE); 150 msm_pipe->chip_id = get_param(pipe, MSM_PARAM_CHIP_ID); 151 152 if (! msm_pipe->gpu_id) 153 goto fail; 154 155 INFO_MSG("Pipe Info:"); 156 INFO_MSG(" GPU-id: %d", msm_pipe->gpu_id); 157 INFO_MSG(" Chip-id: 0x%08x", msm_pipe->chip_id); 158 INFO_MSG(" GMEM size: 0x%08x", msm_pipe->gmem); 159 160 return pipe; 161 fail: 162 if (pipe) 163 fd_pipe_del(pipe); 164 return NULL; 165 } 166
