diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2024-01-19 08:24:36 +0100 |
|---|---|---|
| committer | Lean Sheng Tan <sheng.tan@9elements.com> | 2024-01-24 08:51:07 +0000 |
| commit | ab6bcd2c1a3e47f3bd1ad5c7f1b984a1b38f6da1 (patch) | |
| tree | 95db294d1db1e5e540428a7d8c16a110e721409b /src/device | |
| parent | f95dbcee713d3a8a081644ee345ce0f6fedf39ac (diff) | |
device/device_util: Add method to retrieve the domain
Add a function to return the PCI domain device for the specified
device. On multi PCI domain platforms this function allows to
determine which domain and thus which socket the PCI device
belongs to.
Change-Id: I0068b82e139fe7a35e6b1b91b7d386b750c80748
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80090
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/device')
| -rw-r--r-- | src/device/device_util.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/device/device_util.c b/src/device/device_util.c index edf053d0dd..260c9b43ee 100644 --- a/src/device/device_util.c +++ b/src/device/device_util.c @@ -249,6 +249,19 @@ const char *dev_name(const struct device *dev) return "unknown"; } +/* Returns the PCI domain for the given PCI device */ +struct device *dev_get_pci_domain(struct device *dev) +{ + /* Walk up the tree up to the PCI domain */ + while (dev && dev->bus && !is_root_device(dev)) { + dev = dev->bus->dev; + if (dev->path.type == DEVICE_PATH_DOMAIN) + return dev; + } + + return NULL; +} + /** * Allocate 64 more resources to the free list. * |