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
36static 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
57static 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
77static 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
83static 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
90static 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
107drm_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;
140fail:
141	if (pipe)
142		fd_pipe_del(pipe);
143	return NULL;
144}
145