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/* SPDX-License-Identifier: GPL-2.0-only */
#include <chip.h>
#include <console/console.h>
#include <device/device.h>
#include <delay.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <intelblocks/systemagent.h>
#include <intelblocks/power_limit.h>
#include <soc/iomap.h>
#include <soc/soc_chip.h>
#include <soc/systemagent.h>
/*
* 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;
}
}
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