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12 * The above copyright notice and this permission notice (including the
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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.
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_strap_peek(struct seq_file *m, void *data)
52 struct drm_info_node *node = m->private;
53 struct nouveau_drm *drm = nouveau_drm(node->minor->dev);
56 ret = pm_runtime_get_sync(drm->dev->dev);
57 if (ret < 0 && ret != -EACCES) {
58 pm_runtime_put_autosuspend(drm->dev->dev);
62 seq_printf(m, "0x%08x\n",
63 nvif_rd32(&drm->client.device.object, 0x101000));
65 pm_runtime_mark_last_busy(drm->dev->dev);
66 pm_runtime_put_autosuspend(drm->dev->dev);
72 nouveau_debugfs_pstate_get(struct seq_file *m, void *data)
74 struct drm_device *drm = m->private;
75 struct nouveau_debugfs *debugfs = nouveau_debugfs(drm);
76 struct nvif_object *ctrl = &debugfs->ctrl;
77 struct nvif_control_pstate_info_v0 info = {};
83 ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_INFO, &info, sizeof(info));
87 for (i = 0; i < info.count + 1; i++) {
88 const s32 state = i < info.count ? i :
89 NVIF_CONTROL_PSTATE_ATTR_V0_STATE_CURRENT;
90 struct nvif_control_pstate_attr_v0 attr = {
95 ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_ATTR,
101 seq_printf(m, "%02x:", attr.state);
103 seq_printf(m, "%s:", info.pwrsrc == 0 ? "DC" :
104 info.pwrsrc == 1 ? "AC" : "--");
109 ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_ATTR,
110 &attr, sizeof(attr));
114 seq_printf(m, " %s %d", attr.name, attr.min);
115 if (attr.min != attr.max)
116 seq_printf(m, "-%d", attr.max);
117 seq_printf(m, " %s", attr.unit);
118 } while (attr.index);
121 if (info.ustate_ac == state)
122 seq_printf(m, " AC");
123 if (info.ustate_dc == state)
124 seq_printf(m, " DC");
125 if (info.pstate == state)
128 if (info.ustate_ac < -1)
129 seq_printf(m, " AC");
130 if (info.ustate_dc < -1)
131 seq_printf(m, " DC");
141 nouveau_debugfs_pstate_set(struct file *file, const char __user *ubuf,
142 size_t len, loff_t *offp)
144 struct seq_file *m = file->private_data;
145 struct drm_device *drm = m->private;
146 struct nouveau_debugfs *debugfs = nouveau_debugfs(drm);
147 struct nvif_object *ctrl = &debugfs->ctrl;
148 struct nvif_control_pstate_user_v0 args = { .pwrsrc = -EINVAL };
149 char buf[32] = {}, *tmp, *cur = buf;
155 if (len >= sizeof(buf))
158 if (copy_from_user(buf, ubuf, len))
161 if ((tmp = strchr(buf, '\n')))
164 if (!strncasecmp(cur, "dc:", 3)) {
168 if (!strncasecmp(cur, "ac:", 3)) {
173 if (!strcasecmp(cur, "none"))
174 args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_UNKNOWN;
176 if (!strcasecmp(cur, "auto"))
177 args.ustate = NVIF_CONTROL_PSTATE_USER_V0_STATE_PERFMON;
179 ret = kstrtol(cur, 16, &value);
185 ret = pm_runtime_get_sync(drm->dev);
186 if (ret < 0 && ret != -EACCES) {
187 pm_runtime_put_autosuspend(drm->dev);
191 ret = nvif_mthd(ctrl, NVIF_CONTROL_PSTATE_USER, &args, sizeof(args));
192 pm_runtime_put_autosuspend(drm->dev);
200 nouveau_debugfs_pstate_open(struct inode *inode, struct file *file)
202 return single_open(file, nouveau_debugfs_pstate_get, inode->i_private);
205 static const struct file_operations nouveau_pstate_fops = {
206 .owner = THIS_MODULE,
207 .open = nouveau_debugfs_pstate_open,
209 .write = nouveau_debugfs_pstate_set,
212 static struct drm_info_list nouveau_debugfs_list[] = {
213 { "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
214 { "strap_peek", nouveau_debugfs_strap_peek, 0, NULL },
216 #define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
218 static const struct nouveau_debugfs_files {
220 const struct file_operations *fops;
221 } nouveau_debugfs_files[] = {
222 {"pstate", &nouveau_pstate_fops},
226 nouveau_drm_debugfs_init(struct drm_minor *minor)
228 struct nouveau_drm *drm = nouveau_drm(minor->dev);
229 struct dentry *dentry;
232 for (i = 0; i < ARRAY_SIZE(nouveau_debugfs_files); i++) {
233 debugfs_create_file(nouveau_debugfs_files[i].name,
235 minor->debugfs_root, minor->dev,
236 nouveau_debugfs_files[i].fops);
239 drm_debugfs_create_files(nouveau_debugfs_list,
240 NOUVEAU_DEBUGFS_ENTRIES,
241 minor->debugfs_root, minor);
243 /* Set the size of the vbios since we know it, and it's confusing to
244 * userspace if it wants to seek() but the file has a length of 0
246 dentry = debugfs_lookup("vbios.rom", minor->debugfs_root);
250 d_inode(dentry)->i_size = drm->vbios.length;
255 nouveau_debugfs_init(struct nouveau_drm *drm)
259 drm->debugfs = kzalloc(sizeof(*drm->debugfs), GFP_KERNEL);
263 ret = nvif_object_ctor(&drm->client.device.object, "debugfsCtrl", 0,
264 NVIF_CLASS_CONTROL, NULL, 0,
265 &drm->debugfs->ctrl);
273 nouveau_debugfs_fini(struct nouveau_drm *drm)
275 if (drm->debugfs && drm->debugfs->ctrl.priv)
276 nvif_object_dtor(&drm->debugfs->ctrl);