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authorArthur Heymans <arthur@aheymans.xyz>2024-01-25 22:26:07 +0100
committerArthur Heymans <arthur@aheymans.xyz>2024-01-29 15:04:18 +0000
commit3e99ba02a40cb1035c9ed22552cfc22aaf6bda7d (patch)
treeb2a03e9da5ac03153aedc8bb43586739d53be6af /src/include/device
parente4e26560ee70d4215cbfb5f24cbbc9283177c4d9 (diff)
device: Add a helper function to add a downstream bus
Adding downstream busses at runtime is a common pattern so add a helper function. Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Change-Id: Ic898189b92997b93304fcbf47c73e2bb5ec09023 Reviewed-on: https://review.coreboot.org/c/coreboot/+/80210 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Diffstat (limited to 'src/include/device')
-rw-r--r--src/include/device/device.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/include/device/device.h b/src/include/device/device.h
index 83588d4735..13bc8dcb34 100644
--- a/src/include/device/device.h
+++ b/src/include/device/device.h
@@ -171,6 +171,7 @@ extern struct bus *free_links;
/* Generic device interface functions */
struct device *alloc_dev(struct bus *parent, struct device_path *path);
+struct bus *alloc_bus(struct device *parent);
void dev_initialize_chips(void);
void dev_enumerate(void);
void dev_configure(void);
@@ -229,10 +230,9 @@ void mp_init_cpus(DEVTREE_CONST struct bus *cpu_bus);
static inline void mp_cpu_bus_init(struct device *dev)
{
/* Make sure the cpu cluster has a downstream bus for LAPICs to be allocated. */
- if (!dev->link_list)
- add_more_links(dev, 1);
+ struct bus *bus = alloc_bus(dev);
- mp_init_cpus(dev->link_list);
+ mp_init_cpus(bus);
}
/* Debug functions */