2 * Copyright (C) 2009 Red Hat <bskeggs@redhat.com>
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial
14 * portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
28 * Ben Skeggs <bskeggs@redhat.com>
31 #include <linux/debugfs.h>
32 #include <nvif/class.h>
33 #include <nvif/if0001.h>
34 #include "nouveau_debugfs.h"
35 #include "nouveau_drv.h"
38 nouveau_debugfs_vbios_image(struct seq_file *m, void *data)
40 struct drm_info_node *node = (struct drm_info_node *) m->private;
41 struct nouveau_drm *drm = nouveau_drm(node->minor->dev);
44 for (i = 0; i < drm->vbios.length; i++)
45 seq_printf(m, "%c", drm->vbios.data[i]);
50 nouveau_debugfs_pstate_get(struct seq_file *m, void *data)
52 struct drm_info_node *node = (struct drm_info_node *) m->private;
53 struct nouveau_debugfs *debugfs = nouveau_debugfs(node->minor->dev);
54 struct nvif_object *ctrl = &debugfs->ctrl;
55 struct nvif_control_pstate_info_v0 info = {};
61 ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_INFO, &info, sizeof(info));
65 for (i = 0; i < info.count + 1; i++) {
66 const s32 state = i < info.count ? i :
67 NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT;
68 struct nvif_control_pstate_attr_v0 attr = {
73 ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_ATTR,
79 seq_printf(m, "%02x:", attr.state);
81 seq_printf(m, "%s:", info.pwrsrc == 0 ? "DC" :
82 info.pwrsrc == 1 ? "AC" : "--");
87 ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_ATTR,
92 seq_printf(m, " %s %d", attr.name, attr.min);
93 if (attr.min != attr.max)
94 seq_printf(m, "-%d", attr.max);
95 seq_printf(m, " %s", attr.unit);
99 if (info.ustate_ac == state)
100 seq_printf(m, " AC");
101 if (info.ustate_dc == state)
102 seq_printf(m, " DC");
103 if (info.pstate == state)
106 if (info.ustate_ac < -1)
107 seq_printf(m, " AC");
108 if (info.ustate_dc < -1)
109 seq_printf(m, " DC");
119 nouveau_debugfs_pstate_set(struct file *file, const char __user *ubuf,
120 size_t len, loff_t *offp)
122 struct seq_file *m = file->private_data;
123 struct drm_info_node *node = (struct drm_info_node *) m->private;
124 struct nouveau_debugfs *debugfs = nouveau_debugfs(node->minor->dev);
125 struct nvif_object *ctrl = &debugfs->ctrl;
126 struct nvif_control_pstate_user_v0 args = { .pwrsrc = -EINVAL };
127 char buf[32] = {}, *tmp, *cur = buf;
133 if (len >= sizeof(buf))
136 if (copy_from_user(buf, ubuf, len))
139 if ((tmp = strchr(buf, '\n')))
142 if (!strncasecmp(cur, "dc:", 3)) {
146 if (!strncasecmp(cur, "ac:", 3)) {
151 if (!strcasecmp(cur, "none"))
152 args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_UNKNOWN;
154 if (!strcasecmp(cur, "auto"))
155 args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_PERFMON;
157 ret = kstrtol(cur, 16, &value);
163 ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_USER, &args, sizeof(args));
171 nouveau_debugfs_pstate_open(struct inode *inode, struct file *file)
173 return single_open(file, nouveau_debugfs_pstate_get, inode->i_private);
176 static const struct file_operations nouveau_pstate_fops = {
177 .owner = THIS_MODULE,
178 .open = nouveau_debugfs_pstate_open,
180 .write = nouveau_debugfs_pstate_set,
183 static struct drm_info_list nouveau_debugfs_list[] = {
184 { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
186 #define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
188 static const struct nouveau_debugfs_files {
190 const struct file_operations *fops;
191 } nouveau_debugfs_files[] = {
192 {"pstate", &nouveau_pstate_fops},
196 nouveau_debugfs_create_file(struct drm_minor *minor,
197 const struct nouveau_debugfs_files *ndf)
199 struct drm_info_node *node;
201 node = kmalloc(sizeof(*node), GFP_KERNEL);
206 node->info_ent = (const void *)ndf->fops;
207 node->dent = debugfs_create_file(ndf->name, S_IRUGO | S_IWUSR,
208 minor->debugfs_root, node, ndf->fops);
214 mutex_lock(&minor->debugfs_lock);
215 list_add(&node->list, &minor->debugfs_list);
216 mutex_unlock(&minor->debugfs_lock);
221 nouveau_drm_debugfs_init(struct drm_minor *minor)
225 for (i = 0; i < ARRAY_SIZE(nouveau_debugfs_files); i++) {
226 ret = nouveau_debugfs_create_file(minor,
227 &nouveau_debugfs_files[i]);
233 return drm_debugfs_create_files(nouveau_debugfs_list,
234 NOUVEAU_DEBUGFS_ENTRIES,
235 minor->debugfs_root, minor);
239 nouveau_drm_debugfs_cleanup(struct drm_minor *minor)
243 drm_debugfs_remove_files(nouveau_debugfs_list, NOUVEAU_DEBUGFS_ENTRIES,
246 for (i = 0; i < ARRAY_SIZE(nouveau_debugfs_files); i++) {
247 drm_debugfs_remove_files((struct drm_info_list *)
248 nouveau_debugfs_files[i].fops,
254 nouveau_debugfs_init(struct nouveau_drm *drm)
258 drm->debugfs = kzalloc(sizeof(*drm->debugfs), GFP_KERNEL);
262 ret = nvif_object_init(&drm->client.device.object, 0,
263 NVIF_CLASS_CONTROL, NULL, 0,
264 &drm->debugfs->ctrl);
272 nouveau_debugfs_fini(struct nouveau_drm *drm)
274 if (drm->debugfs && drm->debugfs->ctrl.priv)
275 nvif_object_fini(&drm->debugfs->ctrl);