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 "msm_priv.h"
34
35
msm_pipe_get_param(struct fd_pipe * pipe,enum fd_param_id param,uint64_t * value)36 static int msm_pipe_get_param(struct fd_pipe *pipe,
37 enum fd_param_id param, uint64_t *value)
38 {
39 struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
40 switch(param) {
41 case FD_DEVICE_ID: // XXX probably get rid of this..
42 case FD_GPU_ID:
43 *value = msm_pipe->gpu_id;
44 return 0;
45 case FD_GMEM_SIZE:
46 *value = msm_pipe->gmem;
47 return 0;
48 case FD_CHIP_ID:
49 *value = msm_pipe->chip_id;
50 return 0;
51 default:
52 ERROR_MSG("invalid param id: %d", param);
53 return -1;
54 }
55 }
56
msm_pipe_wait(struct fd_pipe * pipe,uint32_t timestamp)57 static int msm_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp)
58 {
59 struct fd_device *dev = pipe->dev;
60 struct drm_msm_wait_fence req = {
61 .fence = timestamp,
62 };
63 int ret;
64
65 get_abs_timeout(&req.timeout, 5000);
66
67 ret = drmCommandWrite(dev->fd, DRM_MSM_WAIT_FENCE, &req, sizeof(req));
68 if (ret) {
69 ERROR_MSG("wait-fence failed! %d (%s)", ret, strerror(errno));
70 return ret;
71 }
72
73 return 0;
74 }
75
msm_pipe_destroy(struct fd_pipe * pipe)76 static void msm_pipe_destroy(struct fd_pipe *pipe)
77 {
78 struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
79 free(msm_pipe);
80 }
81
82 static struct fd_pipe_funcs funcs = {
83 .ringbuffer_new = msm_ringbuffer_new,
84 .get_param = msm_pipe_get_param,
85 .wait = msm_pipe_wait,
86 .destroy = msm_pipe_destroy,
87 };
88
get_param(struct fd_device * dev,uint32_t pipe,uint32_t param)89 static uint64_t get_param(struct fd_device *dev, uint32_t pipe, uint32_t param)
90 {
91 struct drm_msm_param req = {
92 .pipe = pipe,
93 .param = param,
94 };
95 int ret;
96
97 ret = drmCommandWriteRead(dev->fd, DRM_MSM_GET_PARAM, &req, sizeof(req));
98 if (ret) {
99 ERROR_MSG("get-param failed! %d (%s)", ret, strerror(errno));
100 return 0;
101 }
102
103 return req.value;
104 }
105
msm_pipe_new(struct fd_device * dev,enum fd_pipe_id id)106 struct fd_pipe * msm_pipe_new(struct fd_device *dev, enum fd_pipe_id id)
107 {
108 static const uint32_t pipe_id[] = {
109 [FD_PIPE_3D] = MSM_PIPE_3D0,
110 [FD_PIPE_2D] = MSM_PIPE_2D0,
111 };
112 struct msm_pipe *msm_pipe = NULL;
113 struct fd_pipe *pipe = NULL;
114
115 msm_pipe = calloc(1, sizeof(*msm_pipe));
116 if (!msm_pipe) {
117 ERROR_MSG("allocation failed");
118 goto fail;
119 }
120
121 pipe = &msm_pipe->base;
122 pipe->funcs = &funcs;
123
124 msm_pipe->pipe = pipe_id[id];
125 msm_pipe->gpu_id = get_param(dev, pipe_id[id], MSM_PARAM_GPU_ID);
126 msm_pipe->gmem = get_param(dev, pipe_id[id], MSM_PARAM_GMEM_SIZE);
127 msm_pipe->chip_id = get_param(dev, pipe_id[id], MSM_PARAM_CHIP_ID);
128
129 if (! msm_pipe->gpu_id)
130 goto fail;
131
132 INFO_MSG("Pipe Info:");
133 INFO_MSG(" GPU-id: %d", msm_pipe->gpu_id);
134 INFO_MSG(" Chip-id: 0x%08x", msm_pipe->chip_id);
135 INFO_MSG(" GMEM size: 0x%08x", msm_pipe->gmem);
136
137 return pipe;
138 fail:
139 if (pipe)
140 fd_pipe_del(pipe);
141 return NULL;
142 }
143