| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # |
| 3 | # Copyright (c) NXP 2019 |
| 4 | |
| 5 | import gdb |
| 6 | import sys |
| 7 | |
| 8 | from linux.utils import CachedType |
| 9 | from linux.lists import list_for_each_entry |
| 10 | |
| 11 | generic_pm_domain_type = CachedType('struct generic_pm_domain') |
| 12 | pm_domain_data_type = CachedType('struct pm_domain_data') |
| 13 | device_link_type = CachedType('struct device_link') |
| 14 | |
| 15 | |
| 16 | def kobject_get_path(kobj): |
| 17 | path = kobj['name'].string() |
| 18 | parent = kobj['parent'] |
| 19 | if parent: |
| 20 | path = kobject_get_path(parent) + '/' + path |
| 21 | return path |
| 22 | |
| 23 | |
| 24 | def rtpm_status_str(dev): |
| 25 | if dev['power']['runtime_error']: |
| 26 | return 'error' |
| 27 | if dev['power']['disable_depth']: |
| 28 | return 'unsupported' |
| 29 | _RPM_STATUS_LOOKUP = [ |
| 30 | "active", |
| 31 | "resuming", |
| 32 | "suspended", |
| 33 | "suspending" |
| 34 | ] |
| 35 | return _RPM_STATUS_LOOKUP[dev['power']['runtime_status']] |
| 36 | |
| 37 | |
| 38 | class LxGenPDSummary(gdb.Command): |
| 39 | '''Print genpd summary |
| 40 | |
| 41 | Output is similar to /sys/kernel/debug/pm_genpd/pm_genpd_summary''' |
| 42 | |
| 43 | def __init__(self): |
| 44 | super(LxGenPDSummary, self).__init__('lx-genpd-summary', gdb.COMMAND_DATA) |
| 45 | |
| 46 | def summary_one(self, genpd): |
| 47 | if genpd['status'] == 0: |
| 48 | status_string = 'on' |
| 49 | else: |
| 50 | status_string = 'off-{}'.format(genpd['state_idx']) |
| 51 | |
| 52 | slave_names = [] |
| 53 | for link in list_for_each_entry( |
| 54 | genpd['master_links'], |
| 55 | device_link_type.get_type().pointer(), |
| 56 | 'master_node'): |
| 57 | slave_names.apend(link['slave']['name']) |
| 58 | |
| 59 | gdb.write('%-30s %-15s %s\n' % ( |
| 60 | genpd['name'].string(), |
| 61 | status_string, |
| 62 | ', '.join(slave_names))) |
| 63 | |
| 64 | # Print devices in domain |
| 65 | for pm_data in list_for_each_entry(genpd['dev_list'], |
| 66 | pm_domain_data_type.get_type().pointer(), |
| 67 | 'list_node'): |
| 68 | dev = pm_data['dev'] |
| 69 | kobj_path = kobject_get_path(dev['kobj']) |
| 70 | gdb.write(' %-50s %s\n' % (kobj_path, rtpm_status_str(dev))) |
| 71 | |
| 72 | def invoke(self, arg, from_tty): |
| 73 | gdb.write('domain status slaves\n'); |
| 74 | gdb.write(' /device runtime status\n'); |
| 75 | gdb.write('----------------------------------------------------------------------\n'); |
| 76 | for genpd in list_for_each_entry( |
| 77 | gdb.parse_and_eval('&gpd_list'), |
| 78 | generic_pm_domain_type.get_type().pointer(), |
| 79 | 'gpd_list_node'): |
| 80 | self.summary_one(genpd) |
| 81 | |
| 82 | |
| 83 | LxGenPDSummary() |