| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <acpi/acpi_device.h> |
| #include <baseboard/variants.h> |
| #include <console/console.h> |
| #include <device/pci_ops.h> |
| #include <soc/pci_devs.h> |
| |
| #include <drivers/intel/dptf/chip.h> |
| #include <intelblocks/power_limit.h> |
| |
| WEAK_DEV_PTR(dptf_policy); |
| |
| void variant_update_power_limits(const struct cpu_power_limits *limits, size_t num_entries) |
| { |
| if (!num_entries) |
| return; |
| |
| const struct device *policy_dev = DEV_PTR(dptf_policy); |
| if (!policy_dev) |
| return; |
| |
| struct drivers_intel_dptf_config *config = policy_dev->chip_info; |
| |
| uint16_t mchid = pci_s_read_config16(PCI_DEV(0, 0, 0), PCI_DEVICE_ID); |
| |
| u8 tdp = get_cpu_tdp(); |
| |
| for (size_t i = 0; i < num_entries; i++) { |
| if (mchid == limits[i].mchid && tdp == limits[i].cpu_tdp) { |
| struct dptf_power_limits *settings = &config->controls.power_limits; |
| config_t *conf = config_of_soc(); |
| struct soc_power_limits_config *soc_config = conf->power_limits_config; |
| settings->pl1.min_power = limits[i].pl1_min_power; |
| settings->pl1.max_power = limits[i].pl1_max_power; |
| settings->pl2.min_power = limits[i].pl2_min_power; |
| settings->pl2.max_power = limits[i].pl2_max_power; |
| soc_config->tdp_pl4 = DIV_ROUND_UP(limits[i].pl4_power, |
| MILLIWATTS_TO_WATTS); |
| printk(BIOS_INFO, "Overriding power limits PL1 (%u, %u) PL2 (%u, %u) PL4 (%u)\n", |
| limits[i].pl1_min_power, |
| limits[i].pl1_max_power, |
| limits[i].pl2_min_power, |
| limits[i].pl2_max_power, |
| limits[i].pl4_power); |
| } |
| } |
| } |