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Drop the log buffer

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This does not appear to be used by any boards. Before introducing a new
log system, remove this old one.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2017-12-04 13:48:23 -07:00 committed by Tom Rini
parent 0ad0458c76
commit c5404b64fb
12 changed files with 5 additions and 436 deletions
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1
cmd/Makefile
View file

@ -76,7 +76,6 @@ obj-$(CONFIG_LED_STATUS_CMD) += legacy_led.o
obj-$(CONFIG_CMD_LED) += led.o
obj-$(CONFIG_CMD_LICENSE) += license.o
obj-y += load.o
obj-$(CONFIG_LOGBUFFER) += log.o
obj-$(CONFIG_ID_EEPROM) += mac.o
obj-$(CONFIG_CMD_MD5SUM) += md5sum.o
obj-$(CONFIG_CMD_MEMORY) += mem.o

313
cmd/log.c
View file

@ -1,313 +0,0 @@
/*
* (C) Copyright 2002-2007
* Detlev Zundel, DENX Software Engineering, dzu@denx.de.
*
* Code used from linux/kernel/printk.c
* Copyright (C) 1991, 1992 Linus Torvalds
*
* SPDX-License-Identifier: GPL-2.0+
*
* Comments:
*
* After relocating the code, the environment variable "loglevel" is
* copied to console_loglevel. The functionality is similar to the
* handling in the Linux kernel, i.e. messages logged with a priority
* less than console_loglevel are also output to stdout.
*
* If you want messages with the default level (e.g. POST messages) to
* appear on stdout also, make sure the environment variable
* "loglevel" is set at boot time to a number higher than
* default_message_loglevel below.
*/
/*
* Logbuffer handling routines
*/
#include <common.h>
#include <command.h>
#include <stdio_dev.h>
#include <post.h>
#include <logbuff.h>
DECLARE_GLOBAL_DATA_PTR;
/* Local prototypes */
static void logbuff_putc(struct stdio_dev *dev, const char c);
static void logbuff_puts(struct stdio_dev *dev, const char *s);
static int logbuff_printk(const char *line);
static char buf[1024];
/* This combination will not print messages with the default loglevel */
static unsigned console_loglevel = 3;
static unsigned default_message_loglevel = 4;
static unsigned log_version = 1;
#ifdef CONFIG_ALT_LB_ADDR
static volatile logbuff_t *log;
#else
static logbuff_t *log;
#endif
static char *lbuf;
unsigned long __logbuffer_base(void)
{
return CONFIG_SYS_SDRAM_BASE + get_effective_memsize() - LOGBUFF_LEN;
}
unsigned long logbuffer_base(void)
__attribute__((weak, alias("__logbuffer_base")));
void logbuff_init_ptrs(void)
{
unsigned long tag, post_word;
char *s;
#ifdef CONFIG_ALT_LB_ADDR
log = (logbuff_t *)CONFIG_ALT_LH_ADDR;
lbuf = (char *)CONFIG_ALT_LB_ADDR;
#else
log = (logbuff_t *)(logbuffer_base()) - 1;
lbuf = (char *)log->buf;
#endif
/* Set up log version */
s = env_get("logversion");
if (s)
log_version = (int)simple_strtoul(s, NULL, 10);
if (log_version == 2)
tag = log->v2.tag;
else
tag = log->v1.tag;
post_word = post_word_load();
#ifdef CONFIG_POST
/* The post routines have setup the word so we can simply test it */
if (tag != LOGBUFF_MAGIC || (post_word & POST_COLDBOOT))
logbuff_reset();
#else
/* No post routines, so we do our own checking */
if (tag != LOGBUFF_MAGIC || post_word != LOGBUFF_MAGIC) {
logbuff_reset ();
post_word_store (LOGBUFF_MAGIC);
}
#endif
if (log_version == 2 && (long)log->v2.start > (long)log->v2.con)
log->v2.start = log->v2.con;
/* Initialize default loglevel if present */
s = env_get("loglevel");
if (s)
console_loglevel = (int)simple_strtoul(s, NULL, 10);
gd->flags |= GD_FLG_LOGINIT;
}
void logbuff_reset(void)
{
#ifndef CONFIG_ALT_LB_ADDR
memset(log, 0, sizeof(logbuff_t));
#endif
if (log_version == 2) {
log->v2.tag = LOGBUFF_MAGIC;
#ifdef CONFIG_ALT_LB_ADDR
log->v2.start = 0;
log->v2.con = 0;
log->v2.end = 0;
log->v2.chars = 0;
#endif
} else {
log->v1.tag = LOGBUFF_MAGIC;
#ifdef CONFIG_ALT_LB_ADDR
log->v1.dummy = 0;
log->v1.start = 0;
log->v1.size = 0;
log->v1.chars = 0;
#endif
}
}
int drv_logbuff_init(void)
{
struct stdio_dev logdev;
int rc;
/* Device initialization */
memset (&logdev, 0, sizeof (logdev));
strcpy (logdev.name, "logbuff");
logdev.ext = 0; /* No extensions */
logdev.flags = DEV_FLAGS_OUTPUT; /* Output only */
logdev.putc = logbuff_putc; /* 'putc' function */
logdev.puts = logbuff_puts; /* 'puts' function */
rc = stdio_register(&logdev);
return (rc == 0) ? 1 : rc;
}
static void logbuff_putc(struct stdio_dev *dev, const char c)
{
char buf[2];
buf[0] = c;
buf[1] = '\0';
logbuff_printk(buf);
}
static void logbuff_puts(struct stdio_dev *dev, const char *s)
{
logbuff_printk (s);
}
void logbuff_log(char *msg)
{
if ((gd->flags & GD_FLG_LOGINIT)) {
logbuff_printk(msg);
} else {
/*
* Can happen only for pre-relocated errors as logging
* at that stage should be disabled
*/
puts (msg);
}
}
/*
* Subroutine: do_log
*
* Description: Handler for 'log' command..
*
* Inputs: argv[1] contains the subcommand
*
* Return: None
*
*/
int do_log(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
struct stdio_dev *sdev = NULL;
char *s;
unsigned long i, start, size;
if (strcmp(argv[1], "append") == 0) {
/* Log concatenation of all arguments separated by spaces */
for (i = 2; i < argc; i++) {
logbuff_printk(argv[i]);
logbuff_putc(sdev, (i < argc - 1) ? ' ' : '\n');
}
return 0;
}
switch (argc) {
case 2:
if (strcmp(argv[1], "show") == 0) {
if (log_version == 2) {
start = log->v2.start;
size = log->v2.end - log->v2.start;
} else {
start = log->v1.start;
size = log->v1.size;
}
if (size > LOGBUFF_LEN)
size = LOGBUFF_LEN;
for (i = 0; i < size; i++) {
s = lbuf + ((start + i) & LOGBUFF_MASK);
putc(*s);
}
return 0;
} else if (strcmp(argv[1], "reset") == 0) {
logbuff_reset();
return 0;
} else if (strcmp(argv[1], "info") == 0) {
printf("Logbuffer at %08lx\n", (unsigned long)lbuf);
if (log_version == 2) {
printf("log_start = %08lx\n",
log->v2.start);
printf("log_end = %08lx\n", log->v2.end);
printf("log_con = %08lx\n", log->v2.con);
printf("logged_chars = %08lx\n",
log->v2.chars);
}
else {
printf("log_start = %08lx\n",
log->v1.start);
printf("log_size = %08lx\n",
log->v1.size);
printf("logged_chars = %08lx\n",
log->v1.chars);
}
return 0;
}
return CMD_RET_USAGE;
default:
return CMD_RET_USAGE;
}
}
U_BOOT_CMD(
log, 255, 1, do_log,
"manipulate logbuffer",
"info - show pointer details\n"
"log reset - clear contents\n"
"log show - show contents\n"
"log append <msg> - append <msg> to the logbuffer"
);
static int logbuff_printk(const char *line)
{
int i;
char *msg, *p, *buf_end;
int line_feed;
static signed char msg_level = -1;
strcpy(buf + 3, line);
i = strlen(line);
buf_end = buf + 3 + i;
for (p = buf + 3; p < buf_end; p++) {
msg = p;
if (msg_level < 0) {
if (
p[0] != '<' ||
p[1] < '0' ||
p[1] > '7' ||
p[2] != '>'
) {
p -= 3;
p[0] = '<';
p[1] = default_message_loglevel + '0';
p[2] = '>';
} else {
msg += 3;
}
msg_level = p[1] - '0';
}
line_feed = 0;
for (; p < buf_end; p++) {
if (log_version == 2) {
lbuf[log->v2.end & LOGBUFF_MASK] = *p;
log->v2.end++;
if (log->v2.end - log->v2.start > LOGBUFF_LEN)
log->v2.start++;
log->v2.chars++;
} else {
lbuf[(log->v1.start + log->v1.size) &
LOGBUFF_MASK] = *p;
if (log->v1.size < LOGBUFF_LEN)
log->v1.size++;
else
log->v1.start++;
log->v1.chars++;
}
if (*p == '\n') {
line_feed = 1;
break;
}
}
if (msg_level < console_loglevel) {
printf("%s", msg);
}
if (line_feed)
msg_level = -1;
}
return i;
}

18
common/board_f.c
View file

@ -19,7 +19,6 @@
#include <i2c.h>
#include <initcall.h>
#include <init_helpers.h>
#include <logbuff.h>
#include <malloc.h>
#include <mapmem.h>
#include <os.h>
@ -296,20 +295,6 @@ static int setup_dest_addr(void)
return 0;
}
#if defined(CONFIG_LOGBUFFER)
static int reserve_logbuffer(void)
{
#ifndef CONFIG_ALT_LB_ADDR
/* reserve kernel log buffer */
gd->relocaddr -= LOGBUFF_RESERVE;
debug("Reserving %dk for kernel logbuffer at %08lx\n", LOGBUFF_LEN,
gd->relocaddr);
#endif
return 0;
}
#endif
#ifdef CONFIG_PRAM
/* reserve protected RAM */
static int reserve_pram(void)
@ -846,9 +831,6 @@ static const init_fnc_t init_sequence_f[] = {
* - board info struct
*/
setup_dest_addr,
#if defined(CONFIG_LOGBUFFER)
reserve_logbuffer,
#endif
#ifdef CONFIG_PRAM
reserve_pram,
#endif

25
common/board_r.c
View file

@ -30,7 +30,6 @@
#if defined(CONFIG_CMD_KGDB)
#include <kgdb.h>
#endif
#include <logbuff.h>
#include <malloc.h>
#include <mapmem.h>
#ifdef CONFIG_BITBANGMII
@ -200,19 +199,6 @@ static int initr_addr_map(void)
}
#endif
#ifdef CONFIG_LOGBUFFER
unsigned long logbuffer_base(void)
{
return gd->ram_top - LOGBUFF_LEN;
}
static int initr_logbuffer(void)
{
logbuff_init_ptrs();
return 0;
}
#endif
#ifdef CONFIG_POST
static int initr_post_backlog(void)
{
@ -628,7 +614,7 @@ static int initr_ide(void)
}
#endif
#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
#if defined(CONFIG_PRAM)
/*
* Export available size of memory for Linux, taking into account the
* protected RAM at top of memory
@ -640,10 +626,6 @@ int initr_mem(void)
# ifdef CONFIG_PRAM
pram = env_get_ulong("pram", 10, CONFIG_PRAM);
# endif
# if defined(CONFIG_LOGBUFFER) && !defined(CONFIG_ALT_LB_ADDR)
/* Also take the logbuffer into account (pram is in kB) */
pram += (LOGBUFF_LEN + LOGBUFF_OVERHEAD) / 1024;
# endif
sprintf(memsz, "%ldk", (long int) ((gd->ram_size / 1024) - pram));
env_set("mem", memsz);
@ -753,9 +735,6 @@ static init_fnc_t init_sequence_r[] = {
board_early_init_r,
#endif
INIT_FUNC_WATCHDOG_RESET
#ifdef CONFIG_LOGBUFFER
initr_logbuffer,
#endif
#ifdef CONFIG_POST
initr_post_backlog,
#endif
@ -877,7 +856,7 @@ static init_fnc_t init_sequence_r[] = {
INIT_FUNC_WATCHDOG_RESET
initr_bedbug,
#endif
#if defined(CONFIG_PRAM) || defined(CONFIG_LOGBUFFER)
#if defined(CONFIG_PRAM)
initr_mem,
#endif
#ifdef CONFIG_PS2KBD

9
common/image.c
View file

@ -15,10 +15,6 @@
#include <status_led.h>
#endif
#ifdef CONFIG_LOGBUFFER
#include <logbuff.h>
#endif
#include <rtc.h>
#include <environment.h>
@ -1154,11 +1150,6 @@ int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
}
#ifdef CONFIG_LOGBUFFER
/* Prevent initrd from overwriting logbuffer */
lmb_reserve(lmb, logbuffer_base() - LOGBUFF_OVERHEAD, LOGBUFF_RESERVE);
#endif
debug("## initrd_high = 0x%08lx, copy_to_ram = %d\n",
initrd_high, initrd_copy_to_ram);

6
common/stdio.c
View file

@ -17,9 +17,6 @@
#include <malloc.h>
#include <stdio_dev.h>
#include <serial.h>
#ifdef CONFIG_LOGBUFFER
#include <logbuff.h>
#endif
#if defined(CONFIG_SYS_I2C)
#include <i2c.h>
@ -380,9 +377,6 @@ int stdio_add_devices(void)
#endif /* CONFIG_DM_VIDEO */
#if defined(CONFIG_KEYBOARD) && !defined(CONFIG_DM_KEYBOARD)
drv_keyboard_init ();
#endif
#ifdef CONFIG_LOGBUFFER
drv_logbuff_init ();
#endif
drv_system_init ();
serial_stdio_init ();

2
include/asm-generic/global_data.h
View file

@ -36,7 +36,7 @@ typedef struct global_data {
#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
unsigned long fb_base; /* Base address of framebuffer mem */
#endif
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
#if defined(CONFIG_POST)
unsigned long post_log_word; /* Record POST activities */
unsigned long post_log_res; /* success of POST test */
unsigned long post_init_f_time; /* When post_init_f started */

49
include/logbuff.h
View file

@ -1,49 +0,0 @@
/*
* (C) Copyright 2002-2007
* Detlev Zundel, dzu@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _LOGBUFF_H
#define _LOGBUFF_H
#ifdef CONFIG_LOGBUFFER
#define LOGBUFF_MAGIC 0xc0de4ced /* Forced by code, eh! */
#define LOGBUFF_LEN (16384) /* Must be 16k right now */
#define LOGBUFF_MASK (LOGBUFF_LEN-1)
#define LOGBUFF_OVERHEAD (4096) /* Logbuffer overhead for extra info */
#define LOGBUFF_RESERVE (LOGBUFF_LEN+LOGBUFF_OVERHEAD)
/* The mapping used here has to be the same as in setup_ext_logbuff ()
in linux/kernel/printk */
typedef struct {
union {
struct {
unsigned long tag;
unsigned long start;
unsigned long con;
unsigned long end;
unsigned long chars;
} v2;
struct {
unsigned long dummy;
unsigned long tag;
unsigned long start;
unsigned long size;
unsigned long chars;
} v1;
};
unsigned char buf[0];
} logbuff_t;
int drv_logbuff_init (void);
void logbuff_init_ptrs (void);
void logbuff_log(char *msg);
void logbuff_reset (void);
unsigned long logbuffer_base (void);
#endif /* CONFIG_LOGBUFFER */
#endif /* _LOGBUFF_H */

4
include/post.h
View file

@ -15,7 +15,7 @@
#include <common.h>
#include <asm/io.h>
#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
#if defined(CONFIG_POST)
#ifndef CONFIG_POST_EXTERNAL_WORD_FUNCS
#ifdef CONFIG_SYS_POST_WORD_ADDR
@ -58,7 +58,7 @@ extern ulong post_word_load(void);
extern void post_word_store(ulong value);
#endif /* CONFIG_POST_EXTERNAL_WORD_FUNCS */
#endif /* defined (CONFIG_POST) || defined(CONFIG_LOGBUFFER) */
#endif /* defined (CONFIG_POST) */
#endif /* __ASSEMBLY__ */
#ifdef CONFIG_POST

9
post/post.c
View file

@ -15,10 +15,6 @@
#include <asm/gpio.h>
#endif
#ifdef CONFIG_LOGBUFFER
#include <logbuff.h>
#endif
DECLARE_GLOBAL_DATA_PTR;
#define POST_MAX_NUMBER 32
@ -407,13 +403,8 @@ int post_log(char *format, ...)
vsprintf(printbuffer, format, args);
va_end(args);
#ifdef CONFIG_LOGBUFFER
/* Send to the logbuffer */
logbuff_log(printbuffer);
#else
/* Send to the stdout file */
puts(printbuffer);
#endif
return 0;
}

4
post/tests.c
View file

@ -3,10 +3,6 @@
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*
* Be sure to mark tests to be run before relocation as such with the
* CONFIG_SYS_POST_PREREL flag so that logging is done correctly if the
* logbuffer support is enabled.
*/
#include <common.h>

1
scripts/config_whitelist.txt
View file

@ -1258,7 +1258,6 @@ CONFIG_LMS283GF05
CONFIG_LOADADDR
CONFIG_LOADCMD
CONFIG_LOADS_ECHO
CONFIG_LOGBUFFER
CONFIG_LOWPOWER_ADDR
CONFIG_LOWPOWER_FLAG
CONFIG_LOW_MCFCLK