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authorJacob Garber <jgarber1@ualberta.ca>2019-06-05 16:32:28 -0600
committerMartin Roth <martinroth@google.com>2019-06-28 19:30:09 +0000
commitf77f7cdf891a3ab47f71eb392e4229ece33f27ac (patch)
treeda68aa379496d3d822889a8323ad9c1370477eec /src/device
parentd10680bbbfc045627625ca0ce79e04491978cedf (diff)
downloadcoreboot-f77f7cdf891a3ab47f71eb392e4229ece33f27ac.tar.xz
device,nb/amd: Deduplicate add_more_links()
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>
Diffstat (limited to 'src/device')
-rw-r--r--src/device/device_util.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/device/device_util.c b/src/device/device_util.c
index 47df3052e2..e2370a1cce 100644
--- a/src/device/device_util.c
+++ b/src/device/device_util.c
@@ -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;