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,uint64_t timeout)57 static int msm_pipe_wait(struct fd_pipe *pipe, uint32_t timestamp,
58 uint64_t timeout)
59 {
60 struct fd_device *dev = pipe->dev;
61 struct drm_msm_wait_fence req = {
62 .fence = timestamp,
63 };
64 int ret;
65
66 get_abs_timeout(&req.timeout, timeout);
67
68 ret = drmCommandWrite(dev->fd, DRM_MSM_WAIT_FENCE, &req, sizeof(req));
69 if (ret) {
70 ERROR_MSG("wait-fence failed! %d (%s)", ret, strerror(errno));
71 return ret;
72 }
73
74 return 0;
75 }
76
msm_pipe_destroy(struct fd_pipe * pipe)77 static void msm_pipe_destroy(struct fd_pipe *pipe)
78 {
79 struct msm_pipe *msm_pipe = to_msm_pipe(pipe);
80 free(msm_pipe);
81 }
82
83 static const struct fd_pipe_funcs funcs = {
84 .ringbuffer_new = msm_ringbuffer_new,
85 .get_param = msm_pipe_get_param,
86 .wait = msm_pipe_wait,
87 .destroy = msm_pipe_destroy,
88 };
89
get_param(struct fd_device * dev,uint32_t pipe,uint32_t param)90 static uint64_t get_param(struct fd_device *dev, uint32_t pipe, uint32_t param)
91 {
92 struct drm_msm_param req = {
93 .pipe = pipe,
94 .param = param,
95 };
96 int ret;
97
98 ret = drmCommandWriteRead(dev->fd, DRM_MSM_GET_PARAM, &req, sizeof(req));
99 if (ret) {
100 ERROR_MSG("get-param failed! %d (%s)", ret, strerror(errno));
101 return 0;
102 }
103
104 return req.value;
105 }
106
msm_pipe_new(struct fd_device * dev,enum fd_pipe_id id)107 drm_private struct fd_pipe * msm_pipe_new(struct fd_device *dev,
108 enum fd_pipe_id id)
109 {
110 static const uint32_t pipe_id[] = {
111 [FD_PIPE_3D] = MSM_PIPE_3D0,
112 [FD_PIPE_2D] = MSM_PIPE_2D0,
113 };
114 struct msm_pipe *msm_pipe = NULL;
115 struct fd_pipe *pipe = NULL;
116
117 msm_pipe = calloc(1, sizeof(*msm_pipe));
118 if (!msm_pipe) {
119 ERROR_MSG("allocation failed");
120 goto fail;
121 }
122
123 pipe = &msm_pipe->base;
124 pipe->funcs = &funcs;
125
126 msm_pipe->pipe = pipe_id[id];
127 msm_pipe->gpu_id = get_param(dev, pipe_id[id], MSM_PARAM_GPU_ID);
128 msm_pipe->gmem = get_param(dev, pipe_id[id], MSM_PARAM_GMEM_SIZE);
129 msm_pipe->chip_id = get_param(dev, pipe_id[id], MSM_PARAM_CHIP_ID);
130
131 if (! msm_pipe->gpu_id)
132 goto fail;
133
134 INFO_MSG("Pipe Info:");
135 INFO_MSG(" GPU-id: %d", msm_pipe->gpu_id);
136 INFO_MSG(" Chip-id: 0x%08x", msm_pipe->chip_id);
137 INFO_MSG(" GMEM size: 0x%08x", msm_pipe->gmem);
138
139 return pipe;
140 fail:
141 if (pipe)
142 fd_pipe_del(pipe);
143 return NULL;
144 }
145