diff options
author | Nico Huber <nico.h@gmx.de> | 2017-09-19 09:36:03 +0200 |
---|---|---|
committer | Martin Roth <martinroth@google.com> | 2018-04-05 15:52:45 +0000 |
commit | 2afe4dc075fd2cab8d362aa026066a5f53663f2c (patch) | |
tree | b59930db3e2403c531697dbdccb87bdec1ee77e4 /src/soc/intel/skylake/chip_fsp20.c | |
parent | db06cf0576192dca4ae4cdb185d311baffc4669c (diff) | |
download | coreboot-2afe4dc075fd2cab8d362aa026066a5f53663f2c.tar.xz |
soc/intel/skylake: Enable VT-d and X2APIC
We use the usual static addresses 0xfed90000/0xfed91000 for the GFX
IOMMU and the general IOMMU respectively. These addresses have to be
configured in MCHBAR registers (maybe, who knows, the blob is undocu-
mented), advertised to FSP and reserved from the OS.
The new devicetree option `ignore_vtd` allows to retain the old beha-
viour (do whatever pre-set UPD values suggest).
We also let FSP set up distinct BDFs for messages originating from the
I/O-APIC and the HPET.
Change-Id: I77f87c385736615c127143760bbd144f97986b37
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/21597
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Youness Alaoui <snifikino@gmail.com>
Diffstat (limited to 'src/soc/intel/skylake/chip_fsp20.c')
-rw-r--r-- | src/soc/intel/skylake/chip_fsp20.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/chip_fsp20.c b/src/soc/intel/skylake/chip_fsp20.c index b4fed26d1d..4ac73b57c6 100644 --- a/src/soc/intel/skylake/chip_fsp20.c +++ b/src/soc/intel/skylake/chip_fsp20.c @@ -31,9 +31,11 @@ #include <soc/acpi.h> #include <soc/intel/common/vbt.h> #include <soc/interrupt.h> +#include <soc/iomap.h> #include <soc/irq.h> #include <soc/pci_devs.h> #include <soc/ramstage.h> +#include <soc/systemagent.h> #include <string.h> void soc_init_pre_device(void *chip_info) @@ -326,6 +328,19 @@ void platform_fsp_silicon_init_params_cb(FSPS_UPD *supd) /* Set TccActivationOffset */ tconfig->TccActivationOffset = config->tcc_offset; + /* Enable VT-d and X2APIC */ + if (!config->ignore_vtd && soc_is_vtd_capable()) { + params->VtdBaseAddress[0] = GFXVT_BASE_ADDRESS; + params->VtdBaseAddress[1] = VTVC0_BASE_ADDRESS; + params->X2ApicOptOut = 0; + tconfig->VtdDisable = 0; + + params->PchIoApicBdfValid = 1; + params->PchIoApicBusNumber = 250; + params->PchIoApicDeviceNumber = 31; + params->PchIoApicFunctionNumber = 0; + } + soc_irq_settings(params); } |