report_platform.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <arch/cpu.h>
#include <device/pci_ops.h>
#include <console/console.h>
#include <cpu/intel/cpu_ids.h>
#include <cpu/intel/microcode.h>
#include <cpu/x86/msr.h>
#include <cpu/x86/name.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <soc/romstage.h>
#include <soc/pci_devs.h>
 
static struct {
        u32 cpuid;
        const char *name;
} cpu_table[] = {
        { CPUID_APOLLOLAKE_A0, "Apollolake A0" },
        { CPUID_APOLLOLAKE_B0, "Apollolake B0" },
        { CPUID_APOLLOLAKE_E0, "Apollolake E0" },
        { CPUID_GLK_A0, "Geminilake A0" },
        { CPUID_GLK_B0, "Geminilake B0" },
        { CPUID_GLK_R0, "Geminilake R0" },
};
 
static struct {
        u16 mchid;
        const char *name;
} mch_table[] = {
        { PCI_DID_INTEL_GLK_NB, "Geminilake" },
        { PCI_DID_INTEL_APL_NB, "Apollolake" },
};
 
static struct {
        u16 lpcid;
        const char *name;
} pch_table[] = {
        { PCI_DID_INTEL_APL_LPC, "Apollolake" },
        { PCI_DID_INTEL_GLK_LPC, "Geminilake" },
        { PCI_DID_INTEL_GLK_ESPI, "Geminilake" },
};
 
static struct {
        u16 igdid;
        const char *name;
} igd_table[] = {
        { PCI_DID_INTEL_APL_IGD_HD_505, "Apollolake HD 505" },
        { PCI_DID_INTEL_APL_IGD_HD_500, "Apollolake HD 500" },
        { PCI_DID_INTEL_GLK_IGD, "Geminilake" },
        { PCI_DID_INTEL_GLK_IGD_EU12, "Geminilake EU12" },
};
 
static uint8_t get_dev_revision(pci_devfn_t dev)
{
        return pci_read_config8(dev, PCI_REVISION_ID);
}
 
static uint16_t get_dev_id(pci_devfn_t dev)
{
        return pci_read_config16(dev, PCI_DEVICE_ID);
}
 
static void report_cpu_info(void)
{
        uint32_t i, cpu_id, cpu_feature_flag;
        char cpu_name[49];
        const char *support = "Supported";
        const char *no_support = "Not Supported";
        const char *cpu_type = "Unknown";
 
        fill_processor_name(cpu_name);
        cpu_id = cpu_get_cpuid();
 
        /* Look for string to match the name */
        for (i = 0; i < ARRAY_SIZE(cpu_table); i++) {
                if (cpu_table[i].cpuid == cpu_id) {
                        cpu_type = cpu_table[i].name;
                        break;
                }
        }
 
        printk(BIOS_INFO, "CPU: %s\n", cpu_name);
        printk(BIOS_INFO, "CPU: ID %x, %s, ucode: %08x\n", cpu_id, cpu_type,
                        get_current_microcode_rev());
 
        cpu_feature_flag = cpu_get_feature_flags_ecx();
        printk(BIOS_INFO, "CPU: AES %s, TXT %s, VT %s\n",
                        (cpu_feature_flag & CPUID_AES) ? support : no_support,
                        (cpu_feature_flag & CPUID_SMX) ? support : no_support,
                        (cpu_feature_flag & CPUID_VMX) ? support : no_support);
}
 
static void report_mch_info(void)
{
        uint32_t i;
        pci_devfn_t dev = SA_DEV_ROOT;
        uint16_t mchid = get_dev_id(dev);
        uint8_t mch_revision = get_dev_revision(dev);
        const char *mch_type = "Unknown";
 
        for (i = 0; i < ARRAY_SIZE(mch_table); i++) {
                if (mch_table[i].mchid == mchid) {
                        mch_type = mch_table[i].name;
                        break;
                }
        }
 
        printk(BIOS_INFO, "MCH: device id %04x (rev %02x) is %s\n",
                        mchid, mch_revision, mch_type);
}
 
static void report_pch_info(void)
{
        uint32_t i;
        pci_devfn_t dev = PCH_DEV_LPC;
        uint16_t lpcid = get_dev_id(dev);
        const char *pch_type = "Unknown";
 
        for (i = 0; i < ARRAY_SIZE(pch_table); i++) {
                if (pch_table[i].lpcid == lpcid) {
                        pch_type = pch_table[i].name;
                        break;
                }
        }
        printk(BIOS_INFO, "PCH: device id %04x (rev %02x) is %s\n",
                        lpcid, get_dev_revision(dev), pch_type);
}
 
static void report_igd_info(void)
{
        uint32_t i;
        pci_devfn_t dev = SA_DEV_IGD;
        uint16_t igdid = get_dev_id(dev);
        const char *igd_type = "Unknown";
 
        for (i = 0; i < ARRAY_SIZE(igd_table); i++) {
                if (igd_table[i].igdid == igdid) {
                        igd_type = igd_table[i].name;
                        break;
                }
        }
        printk(BIOS_INFO, "IGD: device id %04x (rev %02x) is %s\n",
                igdid, get_dev_revision(dev), igd_type);
}
 
void report_platform_info(void)
{
        report_cpu_info();
        report_mch_info();
        report_pch_info();
        report_igd_info();
}