1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # 2 #
3 # Copyright (c) NXP 2019 3 # Copyright (c) NXP 2019
4 4
5 import gdb 5 import gdb
6 import sys 6 import sys
7 7
8 from linux import utils, lists, constants 8 from linux import utils, lists, constants
9 9
10 clk_core_type = utils.CachedType("struct clk_c 10 clk_core_type = utils.CachedType("struct clk_core")
11 11
12 12
13 def clk_core_for_each_child(hlist_head): 13 def clk_core_for_each_child(hlist_head):
14 return lists.hlist_for_each_entry(hlist_he 14 return lists.hlist_for_each_entry(hlist_head,
15 clk_core_type.get_type().pointer() 15 clk_core_type.get_type().pointer(), "child_node")
16 16
17 17
18 class LxClkSummary(gdb.Command): 18 class LxClkSummary(gdb.Command):
19 """Print clk tree summary 19 """Print clk tree summary
20 20
21 Output is a subset of /sys/kernel/debug/clk/cl 21 Output is a subset of /sys/kernel/debug/clk/clk_summary
22 22
23 No calls are made during printing, instead a ( 23 No calls are made during printing, instead a (c) if printed after values which
24 are cached and potentially out of date""" 24 are cached and potentially out of date"""
25 25
26 def __init__(self): 26 def __init__(self):
27 super(LxClkSummary, self).__init__("lx 27 super(LxClkSummary, self).__init__("lx-clk-summary", gdb.COMMAND_DATA)
28 28
29 def show_subtree(self, clk, level): 29 def show_subtree(self, clk, level):
30 gdb.write("%*s%-*s %7d %8d %8d %11lu%s 30 gdb.write("%*s%-*s %7d %8d %8d %11lu%s\n" % (
31 level * 3 + 1, "", 31 level * 3 + 1, "",
32 30 - level * 3, 32 30 - level * 3,
33 clk['name'].string(), 33 clk['name'].string(),
34 clk['enable_count'], 34 clk['enable_count'],
35 clk['prepare_count'], 35 clk['prepare_count'],
36 clk['protect_count'], 36 clk['protect_count'],
37 clk['rate'], 37 clk['rate'],
38 '(c)' if clk['flags'] & consta 38 '(c)' if clk['flags'] & constants.LX_CLK_GET_RATE_NOCACHE else ' '))
39 39
40 for child in clk_core_for_each_child(c 40 for child in clk_core_for_each_child(clk['children']):
41 self.show_subtree(child, level + 1 41 self.show_subtree(child, level + 1)
42 42
43 def invoke(self, arg, from_tty): 43 def invoke(self, arg, from_tty):
44 if utils.gdb_eval_or_none("clk_root_li 44 if utils.gdb_eval_or_none("clk_root_list") is None:
45 raise gdb.GdbError("No clocks regi 45 raise gdb.GdbError("No clocks registered")
46 gdb.write(" 46 gdb.write(" enable prepare protect \n")
47 gdb.write(" clock 47 gdb.write(" clock count count count rate \n")
48 gdb.write("--------------------------- 48 gdb.write("------------------------------------------------------------------------\n")
49 for clk in clk_core_for_each_child(gdb 49 for clk in clk_core_for_each_child(gdb.parse_and_eval("clk_root_list")):
50 self.show_subtree(clk, 0) 50 self.show_subtree(clk, 0)
51 for clk in clk_core_for_each_child(gdb 51 for clk in clk_core_for_each_child(gdb.parse_and_eval("clk_orphan_list")):
52 self.show_subtree(clk, 0) 52 self.show_subtree(clk, 0)
53 53
54 54
55 LxClkSummary() 55 LxClkSummary()
56 56
57 57
58 class LxClkCoreLookup(gdb.Function): 58 class LxClkCoreLookup(gdb.Function):
59 """Find struct clk_core by name""" 59 """Find struct clk_core by name"""
60 60
61 def __init__(self): 61 def __init__(self):
62 super(LxClkCoreLookup, self).__init__( 62 super(LxClkCoreLookup, self).__init__("lx_clk_core_lookup")
63 63
64 def lookup_hlist(self, hlist_head, name): 64 def lookup_hlist(self, hlist_head, name):
65 for child in clk_core_for_each_child(h 65 for child in clk_core_for_each_child(hlist_head):
66 if child['name'].string() == name: 66 if child['name'].string() == name:
67 return child 67 return child
68 result = self.lookup_hlist(child[' 68 result = self.lookup_hlist(child['children'], name)
69 if result: 69 if result:
70 return result 70 return result
71 71
72 def invoke(self, name): 72 def invoke(self, name):
73 name = name.string() 73 name = name.string()
74 return (self.lookup_hlist(gdb.parse_an 74 return (self.lookup_hlist(gdb.parse_and_eval("clk_root_list"), name) or
75 self.lookup_hlist(gdb.parse_an 75 self.lookup_hlist(gdb.parse_and_eval("clk_orphan_list"), name))
76 76
77 77
78 LxClkCoreLookup() 78 LxClkCoreLookup()
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