1 # SPDX-License-Identifier: GPL-2.0
2 #
3 # Copyright (c) NXP 2019
4
5 import gdb
6 import sys
7
8 from linux import utils, lists, constants
9
10 clk_core_type = utils.CachedType("struct clk_c
11
12
13 def clk_core_for_each_child(hlist_head):
14 return lists.hlist_for_each_entry(hlist_he
15 clk_core_type.get_type().pointer()
16
17
18 class LxClkSummary(gdb.Command):
19 """Print clk tree summary
20
21 Output is a subset of /sys/kernel/debug/clk/cl
22
23 No calls are made during printing, instead a (
24 are cached and potentially out of date"""
25
26 def __init__(self):
27 super(LxClkSummary, self).__init__("lx
28
29 def show_subtree(self, clk, level):
30 gdb.write("%*s%-*s %7d %8d %8d %11lu%s
31 level * 3 + 1, "",
32 30 - level * 3,
33 clk['name'].string(),
34 clk['enable_count'],
35 clk['prepare_count'],
36 clk['protect_count'],
37 clk['rate'],
38 '(c)' if clk['flags'] & consta
39
40 for child in clk_core_for_each_child(c
41 self.show_subtree(child, level + 1
42
43 def invoke(self, arg, from_tty):
44 if utils.gdb_eval_or_none("clk_root_li
45 raise gdb.GdbError("No clocks regi
46 gdb.write("
47 gdb.write(" clock
48 gdb.write("---------------------------
49 for clk in clk_core_for_each_child(gdb
50 self.show_subtree(clk, 0)
51 for clk in clk_core_for_each_child(gdb
52 self.show_subtree(clk, 0)
53
54
55 LxClkSummary()
56
57
58 class LxClkCoreLookup(gdb.Function):
59 """Find struct clk_core by name"""
60
61 def __init__(self):
62 super(LxClkCoreLookup, self).__init__(
63
64 def lookup_hlist(self, hlist_head, name):
65 for child in clk_core_for_each_child(h
66 if child['name'].string() == name:
67 return child
68 result = self.lookup_hlist(child['
69 if result:
70 return result
71
72 def invoke(self, name):
73 name = name.string()
74 return (self.lookup_hlist(gdb.parse_an
75 self.lookup_hlist(gdb.parse_an
76
77
78 LxClkCoreLookup()
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