1 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
2 /*
3 *
4 * (C) COPYRIGHT 2022 ARM Limited. All rights reserved.
5 *
6 * This program is free software and is provided to you under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation, and any use by you of this program is subject to the terms
9 * of such GNU license.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, you can access it online at
18 * http://www.gnu.org/licenses/gpl-2.0.html.
19 *
20 */
21
22 #include <linux/device.h>
23 #include <linux/coresight.h>
24
25 #include <coresight-priv.h>
26 #include "coresight_mali_common.h"
27
coresight_mali_enable_component(struct coresight_device * csdev,u32 mode)28 int coresight_mali_enable_component(struct coresight_device *csdev, u32 mode)
29 {
30 struct coresight_mali_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
31 int res = 0;
32
33 if (mode != CS_MODE_SYSFS) {
34 dev_err(drvdata->dev, "Unsupported Mali CS_MODE: %d, expected: %d\n", mode,
35 CS_MODE_SYSFS);
36 return -EINVAL;
37 }
38
39 drvdata->mode = mode;
40
41 res = kbase_debug_coresight_csf_config_enable(drvdata->config);
42 if (res) {
43 dev_err(drvdata->dev, "Config failed to enable with error code %d\n", res);
44 drvdata->mode = CS_MODE_DISABLED;
45 }
46
47 return res;
48 }
49
coresight_mali_disable_component(struct coresight_device * csdev)50 int coresight_mali_disable_component(struct coresight_device *csdev)
51 {
52 struct coresight_mali_drvdata *drvdata = dev_get_drvdata(csdev->dev.parent);
53 int res = 0;
54
55 res = kbase_debug_coresight_csf_config_disable(drvdata->config);
56 if (res)
57 dev_err(drvdata->dev, "config failed to disable with error code %d\n", res);
58
59 drvdata->mode = CS_MODE_DISABLED;
60
61 return res;
62 }
63