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1 | # SPDX-License-Identifier: GPL-2.0 |
2 | # | |
3 | # Copyright (c) NXP 2019 | |
4 | ||
5 | import gdb | |
6 | import sys | |
7 | ||
e7e6f462 | 8 | from linux import utils, lists, constants |
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9 | |
10 | clk_core_type = utils.CachedType("struct clk_core") | |
11 | ||
12 | ||
13 | def clk_core_for_each_child(hlist_head): | |
14 | return lists.hlist_for_each_entry(hlist_head, | |
15 | clk_core_type.get_type().pointer(), "child_node") | |
16 | ||
17 | ||
18 | class LxClkSummary(gdb.Command): | |
e7e6f462 LC |
19 | """Print clk tree summary |
20 | ||
21 | Output is a subset of /sys/kernel/debug/clk/clk_summary | |
22 | ||
23 | No calls are made during printing, instead a (c) if printed after values which | |
24 | are cached and potentially out of date""" | |
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25 | |
26 | def __init__(self): | |
27 | super(LxClkSummary, self).__init__("lx-clk-summary", gdb.COMMAND_DATA) | |
28 | ||
29 | def show_subtree(self, clk, level): | |
e7e6f462 | 30 | gdb.write("%*s%-*s %7d %8d %8d %11lu%s\n" % ( |
d1e9710b LC |
31 | level * 3 + 1, "", |
32 | 30 - level * 3, | |
33 | clk['name'].string(), | |
34 | clk['enable_count'], | |
35 | clk['prepare_count'], | |
e7e6f462 LC |
36 | clk['protect_count'], |
37 | clk['rate'], | |
38 | '(c)' if clk['flags'] & constants.LX_CLK_GET_RATE_NOCACHE else ' ')) | |
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39 | |
40 | for child in clk_core_for_each_child(clk['children']): | |
41 | self.show_subtree(child, level + 1) | |
42 | ||
43 | def invoke(self, arg, from_tty): | |
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44 | gdb.write(" enable prepare protect \n") |
45 | gdb.write(" clock count count count rate \n") | |
46 | gdb.write("------------------------------------------------------------------------\n") | |
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47 | for clk in clk_core_for_each_child(gdb.parse_and_eval("clk_root_list")): |
48 | self.show_subtree(clk, 0) | |
49 | for clk in clk_core_for_each_child(gdb.parse_and_eval("clk_orphan_list")): | |
50 | self.show_subtree(clk, 0) | |
51 | ||
52 | ||
53 | LxClkSummary() | |
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54 | |
55 | ||
56 | class LxClkCoreLookup(gdb.Function): | |
57 | """Find struct clk_core by name""" | |
58 | ||
59 | def __init__(self): | |
60 | super(LxClkCoreLookup, self).__init__("lx_clk_core_lookup") | |
61 | ||
62 | def lookup_hlist(self, hlist_head, name): | |
63 | for child in clk_core_for_each_child(hlist_head): | |
64 | if child['name'].string() == name: | |
65 | return child | |
66 | result = self.lookup_hlist(child['children'], name) | |
67 | if result: | |
68 | return result | |
69 | ||
70 | def invoke(self, name): | |
71 | name = name.string() | |
72 | return (self.lookup_hlist(gdb.parse_and_eval("clk_root_list"), name) or | |
73 | self.lookup_hlist(gdb.parse_and_eval("clk_orphan_list"), name)) | |
74 | ||
75 | ||
76 | LxClkCoreLookup() |