+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2011, Google Inc. All rights reserved.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
*/
/*
* This module records the progress of boot and arbitrary commands, and
* permits accurate timestamping of each.
- *
- * TBD: Pass timings to kernel in the FDT
*/
+#define LOG_CATEGORY LOGC_BOOT
+
#include <common.h>
-#include <libfdt.h>
+#include <bootstage.h>
+#include <hang.h>
+#include <log.h>
#include <malloc.h>
+#include <sort.h>
+#include <spl.h>
+#include <asm/global_data.h>
#include <linux/compiler.h>
+#include <linux/libfdt.h>
DECLARE_GLOBAL_DATA_PTR;
+enum {
+ RECORD_COUNT = CONFIG_VAL(BOOTSTAGE_RECORD_COUNT),
+};
+
struct bootstage_record {
ulong time_us;
uint32_t start_us;
enum bootstage_id id;
};
-static struct bootstage_record record[BOOTSTAGE_ID_COUNT] = { {1} };
-static int next_id = BOOTSTAGE_ID_USER;
+struct bootstage_data {
+ uint rec_count;
+ uint next_id;
+ struct bootstage_record record[RECORD_COUNT];
+};
enum {
BOOTSTAGE_VERSION = 0,
BOOTSTAGE_MAGIC = 0xb00757a3,
+ BOOTSTAGE_DIGITS = 9,
};
struct bootstage_hdr {
- uint32_t version; /* BOOTSTAGE_VERSION */
- uint32_t count; /* Number of records */
- uint32_t size; /* Total data size (non-zero if valid) */
- uint32_t magic; /* Unused */
+ u32 version; /* BOOTSTAGE_VERSION */
+ u32 count; /* Number of records */
+ u32 size; /* Total data size (non-zero if valid) */
+ u32 magic; /* Magic number */
+ u32 next_id; /* Next ID to use for bootstage */
};
int bootstage_relocate(void)
{
+ struct bootstage_data *data = gd->bootstage;
int i;
+ char *ptr;
+
+ /* Figure out where to relocate the strings to */
+ ptr = (char *)(data + 1);
/*
* Duplicate all strings. They may point to an old location in the
* program .text section that can eventually get trashed.
*/
- for (i = 0; i < BOOTSTAGE_ID_COUNT; i++)
- if (record[i].name)
- record[i].name = strdup(record[i].name);
+ debug("Relocating %d records\n", data->rec_count);
+ for (i = 0; i < data->rec_count; i++) {
+ const char *from = data->record[i].name;
+
+ strcpy(ptr, from);
+ data->record[i].name = ptr;
+ ptr += strlen(ptr) + 1;
+ }
return 0;
}
+struct bootstage_record *find_id(struct bootstage_data *data,
+ enum bootstage_id id)
+{
+ struct bootstage_record *rec;
+ struct bootstage_record *end;
+
+ for (rec = data->record, end = rec + data->rec_count; rec < end;
+ rec++) {
+ if (rec->id == id)
+ return rec;
+ }
+
+ return NULL;
+}
+
+struct bootstage_record *ensure_id(struct bootstage_data *data,
+ enum bootstage_id id)
+{
+ struct bootstage_record *rec;
+
+ rec = find_id(data, id);
+ if (!rec && data->rec_count < RECORD_COUNT) {
+ rec = &data->record[data->rec_count++];
+ rec->id = id;
+ return rec;
+ }
+
+ return rec;
+}
+
ulong bootstage_add_record(enum bootstage_id id, const char *name,
int flags, ulong mark)
{
+ struct bootstage_data *data = gd->bootstage;
struct bootstage_record *rec;
+ /*
+ * initf_bootstage() is called very early during boot but since hang()
+ * calls bootstage_error() we can be called before bootstage is set up.
+ * Add a check to avoid this.
+ */
+ if (!data)
+ return mark;
if (flags & BOOTSTAGEF_ALLOC)
- id = next_id++;
-
- if (id < BOOTSTAGE_ID_COUNT) {
- rec = &record[id];
+ id = data->next_id++;
- /* Only record the first event for each */
- if (!rec->time_us) {
+ /* Only record the first event for each */
+ rec = find_id(data, id);
+ if (!rec) {
+ if (data->rec_count < RECORD_COUNT) {
+ rec = &data->record[data->rec_count++];
rec->time_us = mark;
rec->name = name;
rec->flags = flags;
rec->id = id;
+ } else {
+ log_warning("Bootstage space exhasuted\n");
}
}
/* Tell the board about this progress */
show_boot_progress(flags & BOOTSTAGEF_ERROR ? -id : id);
- return mark;
-}
-
-ulong bootstage_mark(enum bootstage_id id)
-{
- return bootstage_add_record(id, NULL, 0, timer_get_boot_us());
+ return mark;
}
-ulong bootstage_error(enum bootstage_id id)
+ulong bootstage_error_name(enum bootstage_id id, const char *name)
{
- return bootstage_add_record(id, NULL, BOOTSTAGEF_ERROR,
+ return bootstage_add_record(id, name, BOOTSTAGEF_ERROR,
timer_get_boot_us());
}
if (id == BOOTSTAGE_ID_ALLOC)
flags = BOOTSTAGEF_ALLOC;
+
return bootstage_add_record(id, name, flags, timer_get_boot_us());
}
uint32_t bootstage_start(enum bootstage_id id, const char *name)
{
- struct bootstage_record *rec = &record[id];
+ struct bootstage_data *data = gd->bootstage;
+ struct bootstage_record *rec = ensure_id(data, id);
+ ulong start_us = timer_get_boot_us();
- rec->start_us = timer_get_boot_us();
- rec->name = name;
- return rec->start_us;
+ if (rec) {
+ rec->start_us = start_us;
+ rec->name = name;
+ }
+
+ return start_us;
}
uint32_t bootstage_accum(enum bootstage_id id)
{
- struct bootstage_record *rec = &record[id];
+ struct bootstage_data *data = gd->bootstage;
+ struct bootstage_record *rec = ensure_id(data, id);
uint32_t duration;
+ if (!rec)
+ return 0;
duration = (uint32_t)timer_get_boot_us() - rec->start_us;
rec->time_us += duration;
- return duration;
-}
-static void print_time(unsigned long us_time)
-{
- char str[15], *s;
- int grab = 3;
-
- /* We don't seem to have %'d in U-Boot */
- sprintf(str, "%12lu", us_time);
- for (s = str + 3; *s; s += grab) {
- if (s != str + 3)
- putc(s[-1] != ' ' ? ',' : ' ');
- printf("%.*s", grab, s);
- grab = 3;
- }
+ return duration;
}
/**
* @param buf Buffer to put name if needed
* @param len Length of buffer
* @param rec Boot stage record to get the name from
- * @return pointer to name, either from the record or pointing to buf.
+ * Return: pointer to name, either from the record or pointing to buf.
*/
static const char *get_record_name(char *buf, int len,
- struct bootstage_record *rec)
+ const struct bootstage_record *rec)
{
if (rec->name)
return rec->name;
return buf;
}
-static uint32_t print_time_record(enum bootstage_id id,
- struct bootstage_record *rec, uint32_t prev)
+static uint32_t print_time_record(struct bootstage_record *rec, uint32_t prev)
{
char buf[20];
if (prev == -1U) {
printf("%11s", "");
- print_time(rec->time_us);
+ print_grouped_ull(rec->time_us, BOOTSTAGE_DIGITS);
} else {
- print_time(rec->time_us);
- print_time(rec->time_us - prev);
+ print_grouped_ull(rec->time_us, BOOTSTAGE_DIGITS);
+ print_grouped_ull(rec->time_us - prev, BOOTSTAGE_DIGITS);
}
printf(" %s\n", get_record_name(buf, sizeof(buf), rec));
* Add all bootstage timings to a device tree.
*
* @param blob Device tree blob
- * @return 0 on success, != 0 on failure.
+ * Return: 0 on success, != 0 on failure.
*/
static int add_bootstages_devicetree(struct fdt_header *blob)
{
+ struct bootstage_data *data = gd->bootstage;
int bootstage;
char buf[20];
- int id;
+ int recnum;
int i;
if (!blob)
*/
bootstage = fdt_add_subnode(blob, 0, "bootstage");
if (bootstage < 0)
- return -1;
+ return -EINVAL;
/*
* Insert the timings to the device tree in the reverse order so
* that they can be printed in the Linux kernel in the right order.
*/
- for (id = BOOTSTAGE_ID_COUNT - 1, i = 0; id >= 0; id--, i++) {
- struct bootstage_record *rec = &record[id];
+ for (recnum = data->rec_count - 1, i = 0; recnum >= 0; recnum--, i++) {
+ struct bootstage_record *rec = &data->record[recnum];
int node;
- if (id != BOOTSTAGE_ID_AWAKE && rec->time_us == 0)
+ if (rec->id != BOOTSTAGE_ID_AWAKE && rec->time_us == 0)
continue;
node = fdt_add_subnode(blob, bootstage, simple_itoa(i));
/* add properties to the node. */
if (fdt_setprop_string(blob, node, "name",
- get_record_name(buf, sizeof(buf), rec)))
- return -1;
+ get_record_name(buf, sizeof(buf), rec)))
+ return -EINVAL;
/* Check if this is a 'mark' or 'accum' record */
if (fdt_setprop_cell(blob, node,
rec->start_us ? "accum" : "mark",
rec->time_us))
- return -1;
+ return -EINVAL;
}
return 0;
void bootstage_report(void)
{
- struct bootstage_record *rec = record;
- int id;
+ struct bootstage_data *data = gd->bootstage;
+ struct bootstage_record *rec = data->record;
uint32_t prev;
+ int i;
- puts("Timer summary in microseconds:\n");
+ printf("Timer summary in microseconds (%d records):\n",
+ data->rec_count);
printf("%11s%11s %s\n", "Mark", "Elapsed", "Stage");
- /* Fake the first record - we could get it from early boot */
- rec->name = "reset";
- rec->time_us = 0;
- prev = print_time_record(BOOTSTAGE_ID_AWAKE, rec, 0);
+ prev = print_time_record(rec, 0);
/* Sort records by increasing time */
- qsort(record, ARRAY_SIZE(record), sizeof(*rec), h_compare_record);
+ qsort(data->record, data->rec_count, sizeof(*rec), h_compare_record);
- for (id = 0; id < BOOTSTAGE_ID_COUNT; id++, rec++) {
- if (rec->time_us != 0 && !rec->start_us)
- prev = print_time_record(rec->id, rec, prev);
+ for (i = 1, rec++; i < data->rec_count; i++, rec++) {
+ if (rec->id && !rec->start_us)
+ prev = print_time_record(rec, prev);
}
- if (next_id > BOOTSTAGE_ID_COUNT)
- printf("(Overflowed internal boot id table by %d entries\n"
- "- please increase CONFIG_BOOTSTAGE_USER_COUNT\n",
- next_id - BOOTSTAGE_ID_COUNT);
+ if (data->rec_count > RECORD_COUNT)
+ printf("Overflowed internal boot id table by %d entries\n"
+ "Please increase CONFIG_(SPL_TPL_)BOOTSTAGE_RECORD_COUNT\n",
+ data->rec_count - RECORD_COUNT);
puts("\nAccumulated time:\n");
- for (id = 0, rec = record; id < BOOTSTAGE_ID_COUNT; id++, rec++) {
+ for (i = 0, rec = data->record; i < data->rec_count; i++, rec++) {
if (rec->start_us)
- prev = print_time_record(id, rec, -1);
+ prev = print_time_record(rec, -1);
}
}
-ulong __timer_get_boot_us(void)
-{
- static ulong base_time;
-
- /*
- * We can't implement this properly. Return 0 on the first call and
- * larger values after that.
- */
- if (base_time)
- return get_timer(base_time) * 1000;
- base_time = get_timer(0);
- return 0;
-}
-
-ulong timer_get_boot_us(void)
- __attribute__((weak, alias("__timer_get_boot_us")));
-
/**
* Append data to a memory buffer
*
int bootstage_stash(void *base, int size)
{
+ const struct bootstage_data *data = gd->bootstage;
struct bootstage_hdr *hdr = (struct bootstage_hdr *)base;
- struct bootstage_record *rec;
+ const struct bootstage_record *rec;
char buf[20];
char *ptr = base, *end = ptr + size;
- uint32_t count;
- int id;
+ int i;
if (hdr + 1 > (struct bootstage_hdr *)end) {
debug("%s: Not enough space for bootstage hdr\n", __func__);
- return -1;
+ return -ENOSPC;
}
/* Write an arbitrary version number */
hdr->version = BOOTSTAGE_VERSION;
- /* Count the number of records, and write that value first */
- for (rec = record, id = count = 0; id < BOOTSTAGE_ID_COUNT;
- id++, rec++) {
- if (rec->time_us != 0)
- count++;
- }
- hdr->count = count;
+ hdr->count = data->rec_count;
hdr->size = 0;
hdr->magic = BOOTSTAGE_MAGIC;
+ hdr->next_id = data->next_id;
ptr += sizeof(*hdr);
/* Write the records, silently stopping when we run out of space */
- for (rec = record, id = 0; id < BOOTSTAGE_ID_COUNT; id++, rec++) {
- if (rec->time_us != 0)
- append_data(&ptr, end, rec, sizeof(*rec));
- }
+ for (rec = data->record, i = 0; i < data->rec_count; i++, rec++)
+ append_data(&ptr, end, rec, sizeof(*rec));
/* Write the name strings */
- for (rec = record, id = 0; id < BOOTSTAGE_ID_COUNT; id++, rec++) {
- if (rec->time_us != 0) {
- const char *name;
+ for (rec = data->record, i = 0; i < data->rec_count; i++, rec++) {
+ const char *name;
- name = get_record_name(buf, sizeof(buf), rec);
- append_data(&ptr, end, name, strlen(name) + 1);
- }
+ name = get_record_name(buf, sizeof(buf), rec);
+ append_data(&ptr, end, name, strlen(name) + 1);
}
/* Check for buffer overflow */
if (ptr > end) {
debug("%s: Not enough space for bootstage stash\n", __func__);
- return -1;
+ return -ENOSPC;
}
/* Update total data size */
hdr->size = ptr - (char *)base;
- printf("Stashed %d records\n", hdr->count);
+ debug("Stashed %d records\n", hdr->count);
return 0;
}
-int bootstage_unstash(void *base, int size)
+int bootstage_unstash(const void *base, int size)
{
- struct bootstage_hdr *hdr = (struct bootstage_hdr *)base;
+ const struct bootstage_hdr *hdr = (struct bootstage_hdr *)base;
+ struct bootstage_data *data = gd->bootstage;
+ const char *ptr = base, *end = ptr + size;
struct bootstage_record *rec;
- char *ptr = base, *end = ptr + size;
uint rec_size;
- int id;
+ int i;
if (size == -1)
end = (char *)(~(uintptr_t)0);
if (hdr + 1 > (struct bootstage_hdr *)end) {
debug("%s: Not enough space for bootstage hdr\n", __func__);
- return -1;
+ return -EPERM;
}
if (hdr->magic != BOOTSTAGE_MAGIC) {
debug("%s: Invalid bootstage magic\n", __func__);
- return -1;
+ return -ENOENT;
}
if (ptr + hdr->size > end) {
debug("%s: Bootstage data runs past buffer end\n", __func__);
- return -1;
+ return -ENOSPC;
}
if (hdr->count * sizeof(*rec) > hdr->size) {
- debug("%s: Bootstage has %d records needing %d bytes, but "
+ debug("%s: Bootstage has %d records needing %lu bytes, but "
"only %d bytes is available\n", __func__, hdr->count,
- hdr->count * sizeof(*rec), hdr->size);
- return -1;
+ (ulong)hdr->count * sizeof(*rec), hdr->size);
+ return -ENOSPC;
}
if (hdr->version != BOOTSTAGE_VERSION) {
debug("%s: Bootstage data version %#0x unrecognised\n",
__func__, hdr->version);
- return -1;
+ return -EINVAL;
}
- if (next_id + hdr->count > BOOTSTAGE_ID_COUNT) {
+ if (data->rec_count + hdr->count > RECORD_COUNT) {
debug("%s: Bootstage has %d records, we have space for %d\n"
- "- please increase CONFIG_BOOTSTAGE_USER_COUNT\n",
- __func__, hdr->count, BOOTSTAGE_ID_COUNT - next_id);
- return -1;
+ "Please increase CONFIG_(SPL_)BOOTSTAGE_RECORD_COUNT\n",
+ __func__, hdr->count, RECORD_COUNT - data->rec_count);
+ return -ENOSPC;
}
ptr += sizeof(*hdr);
/* Read the records */
- rec_size = hdr->count * sizeof(*record);
- memcpy(record + next_id, ptr, rec_size);
+ rec_size = hdr->count * sizeof(*data->record);
+ memcpy(data->record + data->rec_count, ptr, rec_size);
/* Read the name strings */
ptr += rec_size;
- for (rec = record + next_id, id = 0; id < hdr->count; id++, rec++) {
+ for (rec = data->record + data->next_id, i = 0; i < hdr->count;
+ i++, rec++) {
rec->name = ptr;
+ if (spl_phase() == PHASE_SPL)
+ rec->name = strdup(ptr);
/* Assume no data corruption here */
ptr += strlen(ptr) + 1;
}
/* Mark the records as read */
- next_id += hdr->count;
- printf("Unstashed %d records\n", hdr->count);
+ data->rec_count += hdr->count;
+ data->next_id = hdr->next_id;
+ debug("Unstashed %d records\n", hdr->count);
+
+ return 0;
+}
+
+int bootstage_get_size(void)
+{
+ struct bootstage_data *data = gd->bootstage;
+ struct bootstage_record *rec;
+ int size;
+ int i;
+
+ size = sizeof(struct bootstage_data);
+ for (rec = data->record, i = 0; i < data->rec_count;
+ i++, rec++)
+ size += strlen(rec->name) + 1;
+
+ return size;
+}
+
+int bootstage_init(bool first)
+{
+ struct bootstage_data *data;
+ int size = sizeof(struct bootstage_data);
+
+ gd->bootstage = (struct bootstage_data *)malloc(size);
+ if (!gd->bootstage)
+ return -ENOMEM;
+ data = gd->bootstage;
+ memset(data, '\0', size);
+ if (first) {
+ data->next_id = BOOTSTAGE_ID_USER;
+ bootstage_add_record(BOOTSTAGE_ID_AWAKE, "reset", 0, 0);
+ }
return 0;
}
projects / J-u-boot.git / blobdiff