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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>
This commit is contained in:
Patrick Rudolph 2019-04-12 15:59:40 +02:00 committed by Patrick Georgi
parent bd7739f3aa
commit f5b9369720
1 changed files with 51 additions and 0 deletions
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51
src/arch/x86/smbios.c
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@ -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;
}