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86 lines
1.9 KiB
86 lines
1.9 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Copyright (C) Nelson Integration, LLC 2016 |
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* Author: Eric Nelson<[email protected]> |
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* |
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*/ |
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#include <config.h> |
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#include <common.h> |
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#include <malloc.h> |
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#include <part.h> |
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static int blkc_show(cmd_tbl_t *cmdtp, int flag, |
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int argc, char * const argv[]) |
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{ |
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struct block_cache_stats stats; |
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blkcache_stats(&stats); |
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printf("hits: %u\n" |
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"misses: %u\n" |
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"entries: %u\n" |
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"max blocks/entry: %u\n" |
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"max cache entries: %u\n", |
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stats.hits, stats.misses, stats.entries, |
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stats.max_blocks_per_entry, stats.max_entries); |
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return 0; |
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} |
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static int blkc_configure(cmd_tbl_t *cmdtp, int flag, |
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int argc, char * const argv[]) |
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{ |
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unsigned blocks_per_entry, max_entries; |
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if (argc != 3) |
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return CMD_RET_USAGE; |
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blocks_per_entry = simple_strtoul(argv[1], 0, 0); |
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max_entries = simple_strtoul(argv[2], 0, 0); |
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blkcache_configure(blocks_per_entry, max_entries); |
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printf("changed to max of %u entries of %u blocks each\n", |
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max_entries, blocks_per_entry); |
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return 0; |
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} |
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static cmd_tbl_t cmd_blkc_sub[] = { |
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U_BOOT_CMD_MKENT(show, 0, 0, blkc_show, "", ""), |
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U_BOOT_CMD_MKENT(configure, 3, 0, blkc_configure, "", ""), |
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}; |
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static __maybe_unused void blkc_reloc(void) |
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{ |
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static int relocated; |
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if (!relocated) { |
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fixup_cmdtable(cmd_blkc_sub, ARRAY_SIZE(cmd_blkc_sub)); |
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relocated = 1; |
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}; |
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} |
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static int do_blkcache(cmd_tbl_t *cmdtp, int flag, |
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int argc, char * const argv[]) |
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{ |
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cmd_tbl_t *c; |
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#ifdef CONFIG_NEEDS_MANUAL_RELOC |
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blkc_reloc(); |
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#endif |
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if (argc < 2) |
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return CMD_RET_USAGE; |
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/* Strip off leading argument */ |
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argc--; |
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argv++; |
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c = find_cmd_tbl(argv[0], &cmd_blkc_sub[0], ARRAY_SIZE(cmd_blkc_sub)); |
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if (!c) |
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return CMD_RET_USAGE; |
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return c->cmd(cmdtp, flag, argc, argv); |
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} |
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U_BOOT_CMD( |
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blkcache, 4, 0, do_blkcache, |
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"block cache diagnostics and control", |
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"show - show and reset statistics\n" |
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"blkcache configure blocks entries\n" |
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);
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