diff options
Diffstat (limited to 'src/soc/intel/skylake/systemagent.c')
| -rw-r--r-- | src/soc/intel/skylake/systemagent.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/systemagent.c b/src/soc/intel/skylake/systemagent.c index 3227519c3e..1d635834ab 100644 --- a/src/soc/intel/skylake/systemagent.c +++ b/src/soc/intel/skylake/systemagent.c @@ -15,6 +15,7 @@ * GNU General Public License for more details. */ +#include <arch/io.h> #include <cpu/x86/msr.h> #include <console/console.h> #include <delay.h> @@ -23,7 +24,16 @@ #include <soc/cpu.h> #include <soc/iomap.h> #include <soc/msr.h> +#include <soc/pci_devs.h> #include <soc/systemagent.h> +#include "chip.h" + +bool soc_is_vtd_capable(void) +{ + struct device *const root_dev = SA_DEV_ROOT; + return root_dev && + !(pci_read_config32(root_dev, CAPID0_A) & VTD_DISABLE); +} /* * SoC implementation @@ -42,9 +52,14 @@ void soc_add_fixed_mmio_resources(struct device *dev, int *index) { GDXCBAR, GDXC_BASE_ADDRESS, GDXC_BASE_SIZE, "GDXCBAR" }, { EDRAMBAR, EDRAM_BASE_ADDRESS, EDRAM_BASE_SIZE, "EDRAMBAR" }, }; + const struct soc_intel_skylake_config *const config = dev->chip_info; sa_add_fixed_mmio_resources(dev, index, soc_fixed_resources, ARRAY_SIZE(soc_fixed_resources)); + + if (!(config && config->ignore_vtd) && soc_is_vtd_capable()) + sa_add_fixed_mmio_resources(dev, index, soc_vtd_resources, + ARRAY_SIZE(soc_vtd_resources)); } /* |