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/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpigen.h>
#include <acpi/acpi.h>
#include <console/console.h>
#include <cpu/cpu.h>
#include <cpu/intel/microcode.h>
#include <cpu/x86/lapic.h>
#include <cpu/x86/mp.h>
#include <cpu/x86/mtrr.h>
#include <intelblocks/cpulib.h>
#include <intelblocks/mp_init.h>
#include <soc/cpu.h>
static const void *microcode_patch;
void get_microcode_info(const void **microcode, int *parallel)
{
*microcode = intel_mp_current_microcode();
*parallel = 1;
}
const void *intel_mp_current_microcode(void)
{
return microcode_patch;
}
static void each_cpu_init(struct device *cpu)
{
printk(BIOS_SPEW, "%s dev: %s, cpu: %d, apic_id: 0x%x\n",
__func__, dev_path(cpu), cpu_index(), cpu->path.apic.apic_id);
setup_lapic();
}
static struct device_operations cpu_dev_ops = {
.init = each_cpu_init,
};
static const struct cpu_device_id cpu_table[] = {
{X86_VENDOR_INTEL, CPUID_COOPERLAKE_SP_A0},
{0, 0},
};
static const struct cpu_driver driver __cpu_driver = {
.ops = &cpu_dev_ops,
.id_table = cpu_table,
};
/*
* Do essential initialization tasks before APs can be fired up
*/
static void pre_mp_init(void)
{
x86_setup_mtrrs_with_detect();
x86_mtrr_check();
}
static int get_thread_count(void)
{
unsigned int num_phys = 0, num_virts = 0;
cpu_read_topology(&num_phys, &num_virts);
printk(BIOS_SPEW, "Detected %u cores and %u threads\n", num_phys, num_virts);
/*
* Currently we do not know a way to figure out how many CPUs we have total
* on multi-socketed. So we pretend all sockets are populated with CPUs with
* same thread/core fusing.
* TODO: properly figure out number of active sockets OR refactor MPinit code
* to remove requirements of having to know total number of CPUs in advance.
*/
return num_virts * CONFIG_MAX_SOCKET;
}
static const struct mp_ops mp_ops = {
.pre_mp_init = pre_mp_init,
.get_cpu_count = get_thread_count,
.get_microcode_info = get_microcode_info
};
void cpx_init_cpus(struct device *dev)
{
microcode_patch = intel_microcode_find();
if (!microcode_patch)
printk(BIOS_ERR, "microcode not found in CBFS!\n");
intel_microcode_load_unlocked(microcode_patch);
if (mp_init_with_smm(dev->link_list, &mp_ops) < 0)
printk(BIOS_ERR, "MP initialization failure.\n");
}
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