]> git.sur5r.net Git - u-boot/blob - cmd/blkcache.c
Merge tag 'xilinx-for-v2018.03' of git://git.denx.de/u-boot-microblaze
[u-boot] / cmd / blkcache.c
1 /*
2  * Copyright (C) Nelson Integration, LLC 2016
3  * Author: Eric Nelson<eric@nelint.com>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  *
7  */
8 #include <config.h>
9 #include <common.h>
10 #include <malloc.h>
11 #include <part.h>
12
13 static int blkc_show(cmd_tbl_t *cmdtp, int flag,
14                      int argc, char * const argv[])
15 {
16         struct block_cache_stats stats;
17         blkcache_stats(&stats);
18
19         printf("hits: %u\n"
20                "misses: %u\n"
21                "entries: %u\n"
22                "max blocks/entry: %u\n"
23                "max cache entries: %u\n",
24                stats.hits, stats.misses, stats.entries,
25                stats.max_blocks_per_entry, stats.max_entries);
26         return 0;
27 }
28
29 static int blkc_configure(cmd_tbl_t *cmdtp, int flag,
30                           int argc, char * const argv[])
31 {
32         unsigned blocks_per_entry, max_entries;
33         if (argc != 3)
34                 return CMD_RET_USAGE;
35
36         blocks_per_entry = simple_strtoul(argv[1], 0, 0);
37         max_entries = simple_strtoul(argv[2], 0, 0);
38         blkcache_configure(blocks_per_entry, max_entries);
39         printf("changed to max of %u entries of %u blocks each\n",
40                max_entries, blocks_per_entry);
41         return 0;
42 }
43
44 static cmd_tbl_t cmd_blkc_sub[] = {
45         U_BOOT_CMD_MKENT(show, 0, 0, blkc_show, "", ""),
46         U_BOOT_CMD_MKENT(configure, 3, 0, blkc_configure, "", ""),
47 };
48
49 static __maybe_unused void blkc_reloc(void)
50 {
51         static int relocated;
52
53         if (!relocated) {
54                 fixup_cmdtable(cmd_blkc_sub, ARRAY_SIZE(cmd_blkc_sub));
55                 relocated = 1;
56         };
57 }
58
59 static int do_blkcache(cmd_tbl_t *cmdtp, int flag,
60                        int argc, char * const argv[])
61 {
62         cmd_tbl_t *c;
63
64 #ifdef CONFIG_NEEDS_MANUAL_RELOC
65         blkc_reloc();
66 #endif
67         if (argc < 2)
68                 return CMD_RET_USAGE;
69
70         /* Strip off leading argument */
71         argc--;
72         argv++;
73
74         c = find_cmd_tbl(argv[0], &cmd_blkc_sub[0], ARRAY_SIZE(cmd_blkc_sub));
75
76         if (!c)
77                 return CMD_RET_USAGE;
78
79         return c->cmd(cmdtp, flag, argc, argv);
80 }
81
82 U_BOOT_CMD(
83         blkcache, 4, 0, do_blkcache,
84         "block cache diagnostics and control",
85         "show - show and reset statistics\n"
86         "blkcache configure blocks entries\n"
87 );