diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2019-04-12 15:59:40 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-05-07 16:05:53 +0000 |
| commit | f5b9369720ac0458be13e723468e27ab987b439e (patch) | |
| tree | b8977953d93acc7926a7959ff6761ad03de94320 /src/arch | |
| parent | bd7739f3aa64aa5409265397722728ba1ffa78ac (diff) | |
smbios: Walk over PCI devicetree to fill type 9
Use the devicetree values for type 9 slots.
Tested on Lenovo T520.
Change-Id: I1961d8af2d21f755ff52ad58804ea9b31d2a5b9b
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32308
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/smbios.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/src/arch/x86/smbios.c b/src/arch/x86/smbios.c index 7c87c693e1..589f4f0e30 100644 --- a/src/arch/x86/smbios.c +++ b/src/arch/x86/smbios.c @@ -999,6 +999,56 @@ static int smbios_write_type127(unsigned long *current, int handle) return len; } +/* Generate Type9 entries from devicetree */ +static int smbios_walk_device_tree_type9(struct device *dev, int *handle, + unsigned long *current) +{ + enum misc_slot_usage usage; + enum slot_data_bus_bandwidth bandwidth; + enum misc_slot_type type; + enum misc_slot_length length; + + if (dev->path.type != DEVICE_PATH_PCI) + return 0; + + if (!dev->smbios_slot_type && !dev->smbios_slot_data_width && + !dev->smbios_slot_designation && !dev->smbios_slot_length) + return 0; + + if (dev_is_active_bridge(dev)) + usage = SlotUsageInUse; + else if (dev->enabled) + usage = SlotUsageAvailable; + else + usage = SlotUsageUnknown; + + if (dev->smbios_slot_data_width) + bandwidth = dev->smbios_slot_data_width; + else + bandwidth = SlotDataBusWidthUnknown; + + if (dev->smbios_slot_type) + type = dev->smbios_slot_type; + else + type = SlotTypeUnknown; + + if (dev->smbios_slot_length) + length = dev->smbios_slot_length; + else + length = SlotLengthUnknown; + + return smbios_write_type9(current, handle, + dev->smbios_slot_designation, + type, + bandwidth, + usage, + length, + 1, + 0, + dev->bus->secondary, + dev->path.pci.devfn); +} + static int smbios_walk_device_tree(struct device *tree, int *handle, unsigned long *current) { @@ -1011,6 +1061,7 @@ static int smbios_walk_device_tree(struct device *tree, int *handle, dev_name(dev)); len += dev->ops->get_smbios_data(dev, handle, current); } + len += smbios_walk_device_tree_type9(dev, handle, current); } return len; } |