1 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) NXP 2019
8 from linux import utils, lists, constants
10 clk_core_type = utils.CachedType("struct clk_core")
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")
18 class LxClkSummary(gdb.Command):
19 """Print clk tree summary
21 Output is a subset of /sys/kernel/debug/clk/clk_summary
23 No calls are made during printing, instead a (c) if printed after values which
24 are cached and potentially out of date"""
27 super(LxClkSummary, self).__init__("lx-clk-summary", gdb.COMMAND_DATA)
29 def show_subtree(self, clk, level):
30 gdb.write("%*s%-*s %7d %8d %8d %11lu%s\n" % (
38 '(c)' if clk['flags'] & constants.LX_CLK_GET_RATE_NOCACHE else ' '))
40 for child in clk_core_for_each_child(clk['children']):
41 self.show_subtree(child, level + 1)
43 def invoke(self, arg, from_tty):
44 gdb.write(" enable prepare protect \n")
45 gdb.write(" clock count count count rate \n")
46 gdb.write("------------------------------------------------------------------------\n")
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)
56 class LxClkCoreLookup(gdb.Function):
57 """Find struct clk_core by name"""
60 super(LxClkCoreLookup, self).__init__("lx_clk_core_lookup")
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:
66 result = self.lookup_hlist(child['children'], name)
70 def invoke(self, name):
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))