1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (C) Nelson Integration, LLC 2016
3*4882a593Smuzhiyun * Author: Eric Nelson<eric@nelint.com>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun */
8*4882a593Smuzhiyun #include <config.h>
9*4882a593Smuzhiyun #include <common.h>
10*4882a593Smuzhiyun #include <malloc.h>
11*4882a593Smuzhiyun #include <part.h>
12*4882a593Smuzhiyun
blkc_show(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])13*4882a593Smuzhiyun static int blkc_show(cmd_tbl_t *cmdtp, int flag,
14*4882a593Smuzhiyun int argc, char * const argv[])
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun struct block_cache_stats stats;
17*4882a593Smuzhiyun blkcache_stats(&stats);
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun printf("hits: %u\n"
20*4882a593Smuzhiyun "misses: %u\n"
21*4882a593Smuzhiyun "entries: %u\n"
22*4882a593Smuzhiyun "max blocks/entry: %u\n"
23*4882a593Smuzhiyun "max cache entries: %u\n",
24*4882a593Smuzhiyun stats.hits, stats.misses, stats.entries,
25*4882a593Smuzhiyun stats.max_blocks_per_entry, stats.max_entries);
26*4882a593Smuzhiyun return 0;
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
blkc_configure(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])29*4882a593Smuzhiyun static int blkc_configure(cmd_tbl_t *cmdtp, int flag,
30*4882a593Smuzhiyun int argc, char * const argv[])
31*4882a593Smuzhiyun {
32*4882a593Smuzhiyun unsigned blocks_per_entry, max_entries;
33*4882a593Smuzhiyun if (argc != 3)
34*4882a593Smuzhiyun return CMD_RET_USAGE;
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun blocks_per_entry = simple_strtoul(argv[1], 0, 0);
37*4882a593Smuzhiyun max_entries = simple_strtoul(argv[2], 0, 0);
38*4882a593Smuzhiyun blkcache_configure(blocks_per_entry, max_entries);
39*4882a593Smuzhiyun printf("changed to max of %u entries of %u blocks each\n",
40*4882a593Smuzhiyun max_entries, blocks_per_entry);
41*4882a593Smuzhiyun return 0;
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun static cmd_tbl_t cmd_blkc_sub[] = {
45*4882a593Smuzhiyun U_BOOT_CMD_MKENT(show, 0, 0, blkc_show, "", ""),
46*4882a593Smuzhiyun U_BOOT_CMD_MKENT(configure, 3, 0, blkc_configure, "", ""),
47*4882a593Smuzhiyun };
48*4882a593Smuzhiyun
blkc_reloc(void)49*4882a593Smuzhiyun static __maybe_unused void blkc_reloc(void)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun static int relocated;
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun if (!relocated) {
54*4882a593Smuzhiyun fixup_cmdtable(cmd_blkc_sub, ARRAY_SIZE(cmd_blkc_sub));
55*4882a593Smuzhiyun relocated = 1;
56*4882a593Smuzhiyun };
57*4882a593Smuzhiyun }
58*4882a593Smuzhiyun
do_blkcache(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])59*4882a593Smuzhiyun static int do_blkcache(cmd_tbl_t *cmdtp, int flag,
60*4882a593Smuzhiyun int argc, char * const argv[])
61*4882a593Smuzhiyun {
62*4882a593Smuzhiyun cmd_tbl_t *c;
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun #ifdef CONFIG_NEEDS_MANUAL_RELOC
65*4882a593Smuzhiyun blkc_reloc();
66*4882a593Smuzhiyun #endif
67*4882a593Smuzhiyun if (argc < 2)
68*4882a593Smuzhiyun return CMD_RET_USAGE;
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun /* Strip off leading argument */
71*4882a593Smuzhiyun argc--;
72*4882a593Smuzhiyun argv++;
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun c = find_cmd_tbl(argv[0], &cmd_blkc_sub[0], ARRAY_SIZE(cmd_blkc_sub));
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun if (!c)
77*4882a593Smuzhiyun return CMD_RET_USAGE;
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun return c->cmd(cmdtp, flag, argc, argv);
80*4882a593Smuzhiyun }
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun U_BOOT_CMD(
83*4882a593Smuzhiyun blkcache, 4, 0, do_blkcache,
84*4882a593Smuzhiyun "block cache diagnostics and control",
85*4882a593Smuzhiyun "show - show and reset statistics\n"
86*4882a593Smuzhiyun "blkcache configure blocks entries\n"
87*4882a593Smuzhiyun );
88