u-boot/drivers/core/dump.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2015 Google, Inc
*/
#include <common.h>
#include <dm.h>
#include <mapmem.h>
#include <dm/root.h>
#include <dm/util.h>
#include <dm/uclass-internal.h>
static void show_devices(struct udevice *dev, int depth, int last_flag)
{
int i, is_last;
struct udevice *child;
u32 flags = dev_get_flags(dev);
/* print the first 20 characters to not break the tree-format. */
printf(IS_ENABLED(CONFIG_SPL_BUILD) ? " %s %d [ %c ] %s " :
" %-10.10s %3d [ %c ] %-20.20s ", dev->uclass->uc_drv->name,
dev_get_uclass_index(dev, NULL),
flags & DM_FLAG_ACTIVATED ? '+' : ' ', dev->driver->name);
for (i = depth; i >= 0; i--) {
is_last = (last_flag >> i) & 1;
if (i) {
if (is_last)
printf(" ");
else
printf("| ");
} else {
if (is_last)
printf("`-- ");
else
printf("|-- ");
}
}
printf("%s\n", dev->name);
device_foreach_child(child, dev) {
is_last = list_is_last(&child->sibling_node, &dev->child_head);
show_devices(child, depth + 1, (last_flag << 1) | is_last);
}
}
void dm_dump_tree(void)
{
struct udevice *root;
root = dm_root();
if (root) {
printf(" Class Index Probed Driver Name\n");
printf("-----------------------------------------------------------\n");
show_devices(root, -1, 0);
}
}
/**
* dm_display_line() - Display information about a single device
*
* Displays a single line of information with an option prefix
*
* @dev: Device to display
*/
static void dm_display_line(struct udevice *dev, int index)
{
printf("%-3i %c %s @ %08lx", index,
dev_get_flags(dev) & DM_FLAG_ACTIVATED ? '*' : ' ',
dev->name, (ulong)map_to_sysmem(dev));
if (dev->seq_ != -1)
printf(", seq %d", dev_seq(dev));
puts("\n");
}
void dm_dump_uclass(void)
{
struct uclass *uc;
int ret;
int id;
for (id = 0; id < UCLASS_COUNT; id++) {
struct udevice *dev;
int i = 0;
ret = uclass_get(id, &uc);
if (ret)
continue;
printf("uclass %d: %s\n", id, uc->uc_drv->name);
uclass_foreach_dev(dev, uc) {
dm_display_line(dev, i);
i++;
}
puts("\n");
}
}
void dm_dump_driver_compat(void)
{
struct driver *d = ll_entry_start(struct driver, driver);
const int n_ents = ll_entry_count(struct driver, driver);
struct driver *entry;
const struct udevice_id *match;
puts("Driver Compatible\n");
puts("--------------------------------\n");
for (entry = d; entry < d + n_ents; entry++) {
match = entry->of_match;
printf("%-20.20s", entry->name);
if (match) {
printf(" %s", match->compatible);
match++;
}
printf("\n");
for (; match && match->compatible; match++)
printf("%-20.20s %s\n", "", match->compatible);
}
}
void dm_dump_drivers(void)
{
struct driver *d = ll_entry_start(struct driver, driver);
const int n_ents = ll_entry_count(struct driver, driver);
struct driver *entry;
struct udevice *udev;
struct uclass *uc;
int ret;
int i;
puts("Driver uid uclass Devices\n");
puts("----------------------------------------------------------\n");
for (entry = d; entry < d + n_ents; entry++) {
ret = uclass_get(entry->id, &uc);
printf("%-25.25s %-3.3d %-20.20s ", entry->name, entry->id,
!ret ? uc->uc_drv->name : "<no uclass>");
if (ret) {
puts("\n");
continue;
}
i = 0;
uclass_foreach_dev(udev, uc) {
if (udev->driver != entry)
continue;
if (i)
printf("%-51.51s", "");
printf("%-25.25s\n", udev->name);
i++;
}
if (!i)
puts("<none>\n");
}
}
void dm_dump_static_driver_info(void)
{
struct driver_info *drv = ll_entry_start(struct driver_info,
driver_info);
const int n_ents = ll_entry_count(struct driver_info, driver_info);
struct driver_info *entry;
puts("Driver Address\n");
puts("---------------------------------\n");
for (entry = drv; entry != drv + n_ents; entry++)
printf("%-25.25s %p\n", entry->name, entry->plat);
}
void dm_dump_mem(struct dm_stats *stats)
{
int total, total_delta;
int i;
/* Support SPL printf() */
printf("Struct sizes: udevice %x, driver %x, uclass %x, uc_driver %x\n",
(int)sizeof(struct udevice), (int)sizeof(struct driver),
(int)sizeof(struct uclass), (int)sizeof(struct uclass_driver));
printf("Memory: device %x:%x, device names %x, uclass %x:%x\n",
stats->dev_count, stats->dev_size, stats->dev_name_size,
stats->uc_count, stats->uc_size);
printf("\n");
printf("%-15s %5s %5s %5s %5s %5s\n", "Attached type", "Count",
"Size", "Cur", "Tags", "Save");
printf("%-15s %5s %5s %5s %5s %5s\n", "---------------", "-----",
"-----", "-----", "-----", "-----");
total_delta = 0;
for (i = 0; i < DM_TAG_ATTACH_COUNT; i++) {
int cur_size, new_size, delta;
cur_size = stats->dev_count * sizeof(struct udevice);
new_size = stats->dev_count * (sizeof(struct udevice) -
sizeof(void *));
/*
* Let's assume we can fit each dmtag_node into 32 bits. We can
* limit the 'tiny tags' feature to SPL with
* CONFIG_SPL_SYS_MALLOC_F_LEN <= 64KB, so needing 14 bits to
* point to anything in that region (with 4-byte alignment).
* So:
* 4 bits for tag
* 14 bits for offset of dev
* 14 bits for offset of data
*/
new_size += stats->attach_count[i] * sizeof(u32);
delta = cur_size - new_size;
total_delta += delta;
printf("%-16s %5x %6x %6x %6x %6x (%d)\n", tag_get_name(i),
stats->attach_count[i], stats->attach_size[i],
cur_size, new_size, delta > 0 ? delta : 0, delta);
}
printf("%-16s %5x %6x\n", "uclass", stats->uc_attach_count,
stats->uc_attach_size);
printf("%-16s %5x %6x %5s %5s %6x (%d)\n", "Attached total",
stats->attach_count_total + stats->uc_attach_count,
stats->attach_size_total + stats->uc_attach_size, "", "",
total_delta > 0 ? total_delta : 0, total_delta);
printf("%-16s %5x %6x\n", "tags", stats->tag_count, stats->tag_size);
printf("\n");
printf("Total size: %x (%d)\n", stats->total_size, stats->total_size);
printf("\n");
total = stats->total_size;
total -= total_delta;
printf("With tags: %x (%d)\n", total, total);
/* Use singly linked lists in struct udevice (3 nodes in each) */
total -= sizeof(void *) * 3 * stats->dev_count;
printf("- singly-linked: %x (%d)\n", total, total);
/* Use an index into the struct_driver list instead of a pointer */
total = total + stats->dev_count * (1 - sizeof(void *));
printf("- driver index: %x (%d)\n", total, total);
/* Same with the uclass */
total = total + stats->dev_count * (1 - sizeof(void *));
printf("- uclass index: %x (%d)\n", total, total);
/* Drop the device name */
printf("Drop device name (not SRAM): %x (%d)\n", stats->dev_name_size,
stats->dev_name_size);
}