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device,nb/amd: Deduplicate add_more_links()

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This function is duplicated in many AMD northbridge files, and all
the definitions have started to diverge somewhat. This moves a single
copy into device utils and deletes the rest. The function definition
from nb/amd/amdfam10 was chosen to be kept, since it contains several
fixes from commit 59d609217b (AMD fam10: Fix add_more_links) that
the others don't have.

For the ease of diffing, the checkpatch lints and other small cleanups
will be done in a follow-up patch.

Change-Id: I5ea73126092449db3f18e19ac0660439313072de
Signed-off-by: Jacob Garber <jgarber1@ualberta.ca>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33237
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Jacob Garber
2019-06-05 16:32:28 -06:00
committed by Martin Roth
parent d10680bbbf
commit f77f7cdf89
8 changed files with 37 additions and 216 deletions
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36
src/device/device_util.c
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@@ -654,6 +654,42 @@ bool dev_is_active_bridge(struct device *dev)
return 0;
}
void add_more_links(struct device *dev, unsigned total_links)
{
struct bus *link, *last = NULL;
int link_num = -1;
for (link = dev->link_list; link; link = link->next) {
if (link_num < link->link_num)
link_num = link->link_num;
last = link;
}
if (last) {
int links = total_links - (link_num + 1);
if (links > 0) {
link = malloc(links*sizeof(*link));
if (!link)
die("Couldn't allocate more links!\n");
memset(link, 0, links*sizeof(*link));
last->next = link;
}
} else {
link = malloc(total_links*sizeof(*link));
memset(link, 0, total_links*sizeof(*link));
dev->link_list = link;
}
for (link_num = link_num + 1; link_num < total_links; link_num++) {
link->link_num = link_num;
link->dev = dev;
link->next = link + 1;
last = link;
link = link->next;
}
last->next = NULL;
}
static void resource_tree(const struct device *root, int debug_level, int depth)
{
int i = 0;