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soc/intel/apollolake: use P2SB function to generate DMAR IOAPIC 

Change-Id: If088d5bf701310e54b14965145229627f3a50417
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47535
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
This commit is contained in:
Arthur Heymans 2020-11-12 21:09:56 +01:00
parent a1f65bed10
commit 054026cdb8
1 changed files with 2 additions and 10 deletions
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12
src/soc/intel/apollolake/acpi.c
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@ -185,22 +185,14 @@ static unsigned long soc_fill_dmar(unsigned long current)
/* DEFVTBAR has to be set and enabled. */
if (defvtbar && defvten) {
tmp = current;
/*
* P2SB may already be hidden. There's no clear rule, when.
* It is needed to get bus, device and function for IOAPIC and
* HPET device which is stored in P2SB device. So unhide it to
* get the info and hide it again when done.
*/
p2sb_unhide();
struct device *p2sb_dev = pcidev_path_on_root(PCH_DEVFN_P2SB);
uint16_t ibdf = pci_read_config16(p2sb_dev, PCH_P2SB_IBDF);
union p2sb_bdf ibdf = p2sb_get_ioapic_bdf();
union p2sb_bdf hbdf = p2sb_get_hpet_bdf();
p2sb_hide();
current += acpi_create_dmar_drhd(current,
DRHD_INCLUDE_PCI_ALL, 0, defvtbar);
current += acpi_create_dmar_ds_ioapic(current,
2, ibdf >> 8, PCI_SLOT(ibdf), PCI_FUNC(ibdf));
2, ibdf.bus, ibdf.dev, ibdf.fn);
current += acpi_create_dmar_ds_msi_hpet(current,
0, hbdf.bus, hbdf.dev, hbdf.fn);
acpi_dmar_drhd_fixup(tmp, current);