mirror of
https://github.com/AsahiLinux/u-boot
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2cb4ddb91e
This command shows the memory used by driver model along with various hints as to what it might be if some 'core' tags were moved to use the tag list instead of a core (i.e. always-there) pointer. This may help with future work to reduce memory usage. Signed-off-by: Simon Glass <sjg@chromium.org>
247 lines
6.7 KiB
C
247 lines
6.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2015 Google, Inc
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*/
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#include <common.h>
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#include <dm.h>
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#include <mapmem.h>
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#include <dm/root.h>
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#include <dm/util.h>
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#include <dm/uclass-internal.h>
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static void show_devices(struct udevice *dev, int depth, int last_flag)
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{
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int i, is_last;
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struct udevice *child;
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u32 flags = dev_get_flags(dev);
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/* print the first 20 characters to not break the tree-format. */
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printf(IS_ENABLED(CONFIG_SPL_BUILD) ? " %s %d [ %c ] %s " :
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" %-10.10s %3d [ %c ] %-20.20s ", dev->uclass->uc_drv->name,
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dev_get_uclass_index(dev, NULL),
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flags & DM_FLAG_ACTIVATED ? '+' : ' ', dev->driver->name);
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for (i = depth; i >= 0; i--) {
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is_last = (last_flag >> i) & 1;
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if (i) {
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if (is_last)
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printf(" ");
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else
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printf("| ");
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} else {
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if (is_last)
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printf("`-- ");
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else
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printf("|-- ");
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}
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}
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printf("%s\n", dev->name);
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device_foreach_child(child, dev) {
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is_last = list_is_last(&child->sibling_node, &dev->child_head);
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show_devices(child, depth + 1, (last_flag << 1) | is_last);
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}
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}
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void dm_dump_tree(void)
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{
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struct udevice *root;
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root = dm_root();
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if (root) {
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printf(" Class Index Probed Driver Name\n");
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printf("-----------------------------------------------------------\n");
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show_devices(root, -1, 0);
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}
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}
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/**
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* dm_display_line() - Display information about a single device
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*
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* Displays a single line of information with an option prefix
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*
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* @dev: Device to display
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*/
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static void dm_display_line(struct udevice *dev, int index)
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{
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printf("%-3i %c %s @ %08lx", index,
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dev_get_flags(dev) & DM_FLAG_ACTIVATED ? '*' : ' ',
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dev->name, (ulong)map_to_sysmem(dev));
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if (dev->seq_ != -1)
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printf(", seq %d", dev_seq(dev));
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puts("\n");
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}
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void dm_dump_uclass(void)
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{
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struct uclass *uc;
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int ret;
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int id;
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for (id = 0; id < UCLASS_COUNT; id++) {
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struct udevice *dev;
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int i = 0;
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ret = uclass_get(id, &uc);
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if (ret)
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continue;
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printf("uclass %d: %s\n", id, uc->uc_drv->name);
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uclass_foreach_dev(dev, uc) {
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dm_display_line(dev, i);
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i++;
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}
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puts("\n");
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}
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}
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void dm_dump_driver_compat(void)
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{
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struct driver *d = ll_entry_start(struct driver, driver);
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const int n_ents = ll_entry_count(struct driver, driver);
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struct driver *entry;
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const struct udevice_id *match;
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puts("Driver Compatible\n");
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puts("--------------------------------\n");
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for (entry = d; entry < d + n_ents; entry++) {
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match = entry->of_match;
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printf("%-20.20s", entry->name);
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if (match) {
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printf(" %s", match->compatible);
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match++;
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}
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printf("\n");
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for (; match && match->compatible; match++)
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printf("%-20.20s %s\n", "", match->compatible);
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}
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}
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void dm_dump_drivers(void)
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{
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struct driver *d = ll_entry_start(struct driver, driver);
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const int n_ents = ll_entry_count(struct driver, driver);
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struct driver *entry;
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struct udevice *udev;
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struct uclass *uc;
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int ret;
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int i;
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puts("Driver uid uclass Devices\n");
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puts("----------------------------------------------------------\n");
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for (entry = d; entry < d + n_ents; entry++) {
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ret = uclass_get(entry->id, &uc);
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printf("%-25.25s %-3.3d %-20.20s ", entry->name, entry->id,
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!ret ? uc->uc_drv->name : "<no uclass>");
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if (ret) {
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puts("\n");
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continue;
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}
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i = 0;
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uclass_foreach_dev(udev, uc) {
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if (udev->driver != entry)
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continue;
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if (i)
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printf("%-51.51s", "");
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printf("%-25.25s\n", udev->name);
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i++;
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}
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if (!i)
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puts("<none>\n");
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}
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}
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void dm_dump_static_driver_info(void)
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{
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struct driver_info *drv = ll_entry_start(struct driver_info,
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driver_info);
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const int n_ents = ll_entry_count(struct driver_info, driver_info);
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struct driver_info *entry;
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puts("Driver Address\n");
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puts("---------------------------------\n");
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for (entry = drv; entry != drv + n_ents; entry++)
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printf("%-25.25s %p\n", entry->name, entry->plat);
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}
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void dm_dump_mem(struct dm_stats *stats)
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{
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int total, total_delta;
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int i;
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/* Support SPL printf() */
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printf("Struct sizes: udevice %x, driver %x, uclass %x, uc_driver %x\n",
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(int)sizeof(struct udevice), (int)sizeof(struct driver),
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(int)sizeof(struct uclass), (int)sizeof(struct uclass_driver));
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printf("Memory: device %x:%x, device names %x, uclass %x:%x\n",
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stats->dev_count, stats->dev_size, stats->dev_name_size,
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stats->uc_count, stats->uc_size);
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printf("\n");
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printf("%-15s %5s %5s %5s %5s %5s\n", "Attached type", "Count",
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"Size", "Cur", "Tags", "Save");
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printf("%-15s %5s %5s %5s %5s %5s\n", "---------------", "-----",
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"-----", "-----", "-----", "-----");
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total_delta = 0;
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for (i = 0; i < DM_TAG_ATTACH_COUNT; i++) {
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int cur_size, new_size, delta;
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cur_size = stats->dev_count * sizeof(struct udevice);
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new_size = stats->dev_count * (sizeof(struct udevice) -
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sizeof(void *));
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/*
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* Let's assume we can fit each dmtag_node into 32 bits. We can
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* limit the 'tiny tags' feature to SPL with
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* CONFIG_SPL_SYS_MALLOC_F_LEN <= 64KB, so needing 14 bits to
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* point to anything in that region (with 4-byte alignment).
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* So:
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* 4 bits for tag
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* 14 bits for offset of dev
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* 14 bits for offset of data
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*/
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new_size += stats->attach_count[i] * sizeof(u32);
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delta = cur_size - new_size;
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total_delta += delta;
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printf("%-16s %5x %6x %6x %6x %6x (%d)\n", tag_get_name(i),
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stats->attach_count[i], stats->attach_size[i],
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cur_size, new_size, delta > 0 ? delta : 0, delta);
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}
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printf("%-16s %5x %6x\n", "uclass", stats->uc_attach_count,
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stats->uc_attach_size);
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printf("%-16s %5x %6x %5s %5s %6x (%d)\n", "Attached total",
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stats->attach_count_total + stats->uc_attach_count,
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stats->attach_size_total + stats->uc_attach_size, "", "",
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total_delta > 0 ? total_delta : 0, total_delta);
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printf("%-16s %5x %6x\n", "tags", stats->tag_count, stats->tag_size);
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printf("\n");
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printf("Total size: %x (%d)\n", stats->total_size, stats->total_size);
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printf("\n");
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total = stats->total_size;
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total -= total_delta;
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printf("With tags: %x (%d)\n", total, total);
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/* Use singly linked lists in struct udevice (3 nodes in each) */
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total -= sizeof(void *) * 3 * stats->dev_count;
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printf("- singly-linked: %x (%d)\n", total, total);
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/* Use an index into the struct_driver list instead of a pointer */
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total = total + stats->dev_count * (1 - sizeof(void *));
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printf("- driver index: %x (%d)\n", total, total);
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/* Same with the uclass */
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total = total + stats->dev_count * (1 - sizeof(void *));
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printf("- uclass index: %x (%d)\n", total, total);
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/* Drop the device name */
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printf("Drop device name (not SRAM): %x (%d)\n", stats->dev_name_size,
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stats->dev_name_size);
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}
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