/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include #include #include #include #include #include #include #include /* * SoC implementation * * Add all known fixed memory ranges for Host Controller/Memory * controller. */ void soc_add_fixed_mmio_resources(struct device *dev, int *index) { static const struct sa_mmio_descriptor soc_fixed_resources[] = { { PCIEXBAR, CONFIG_ECAM_MMCONF_BASE_ADDRESS, CONFIG_ECAM_MMCONF_LENGTH, "PCIEXBAR" }, { MCHBAR, MCH_BASE_ADDRESS, MCH_BASE_SIZE, "MCHBAR" }, { DMIBAR, DMI_BASE_ADDRESS, DMI_BASE_SIZE, "DMIBAR" }, { EPBAR, EP_BASE_ADDRESS, EP_BASE_SIZE, "EPBAR" }, { REGBAR, REG_BASE_ADDRESS, REG_BASE_SIZE, "REGBAR" }, { EDRAMBAR, EDRAM_BASE_ADDRESS, EDRAM_BASE_SIZE, "EDRAMBAR" }, }; sa_add_fixed_mmio_resources(dev, index, soc_fixed_resources, ARRAY_SIZE(soc_fixed_resources)); /* Add Vt-d resources if VT-d is enabled */ if ((pci_read_config32(dev, CAPID0_A) & VTD_DISABLE)) return; sa_add_fixed_mmio_resources(dev, index, soc_vtd_resources, ARRAY_SIZE(soc_vtd_resources)); } /* * SoC implementation * * Perform System Agent Initialization during Ramstage phase. */ void soc_systemagent_init(struct device *dev) { struct soc_power_limits_config *soc_config; config_t *config; uint16_t sa_pci_id; uint8_t tdp; size_t i = 0; /* Enable Power Aware Interrupt Routing */ enable_power_aware_intr(); /* Enable BIOS Reset CPL */ enable_bios_reset_cpl(); mdelay(1); config = config_of_soc(); /* Get System Agent PCI ID */ sa_pci_id = dev ? pci_read_config16(dev, PCI_DEVICE_ID) : 0xFFFF; if (sa_pci_id != 0xFFFF) { tdp = get_cpu_tdp(); /* Choose power limits configuration based on the CPU SA PCI ID and * CPU TDP value. */ for (i = 0; i < ARRAY_SIZE(cpuid_to_jsl); i++) { if (sa_pci_id == cpuid_to_jsl[i].pci_did && tdp == cpuid_to_jsl[i].cpu_tdp) { soc_config = &config->power_limits_config[cpuid_to_jsl[i].limits]; set_power_limits(MOBILE_SKU_PL1_TIME_SEC, soc_config); break; } } } if (i == ARRAY_SIZE(cpuid_to_jsl) || sa_pci_id == 0xFFFF) { printk(BIOS_ERR, "unknown SA ID: 0x%4x, can't find its TDP." " Skipped power limits configuration.\n", sa_pci_id); return; } }