include/linux/platform_data/x86/soc.h

root/include/linux/platform_data/x86/soc.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Helpers for Intel SoC model detection
 *
 * Copyright (c) 2019, Intel Corporation.
 */

#ifndef __PLATFORM_DATA_X86_SOC_H
#define __PLATFORM_DATA_X86_SOC_H

#include <linux/types.h>

#if IS_ENABLED(CONFIG_X86)

#include <linux/mod_devicetable.h>

#include <asm/cpu_device_id.h>

#define SOC_INTEL_IS_CPU(soc, type)                             \
static inline bool soc_intel_is_##soc(void)                     \
{                                                               \
        static const struct x86_cpu_id soc##_cpu_ids[] = {      \
                X86_MATCH_VFM(type, NULL),                      \
                {}                                              \
        };                                                      \
        const struct x86_cpu_id *id;                            \
                                                                \
        id = x86_match_cpu(soc##_cpu_ids);                      \
        if (id)                                                 \
                return true;                                    \
        return false;                                           \
}

SOC_INTEL_IS_CPU(byt, INTEL_ATOM_SILVERMONT);
SOC_INTEL_IS_CPU(cht, INTEL_ATOM_AIRMONT);
SOC_INTEL_IS_CPU(apl, INTEL_ATOM_GOLDMONT);
SOC_INTEL_IS_CPU(glk, INTEL_ATOM_GOLDMONT_PLUS);
SOC_INTEL_IS_CPU(cml, INTEL_KABYLAKE_L);

#undef SOC_INTEL_IS_CPU

#else /* IS_ENABLED(CONFIG_X86) */

static inline bool soc_intel_is_byt(void)
{
        return false;
}

static inline bool soc_intel_is_cht(void)
{
        return false;
}

static inline bool soc_intel_is_apl(void)
{
        return false;
}

static inline bool soc_intel_is_glk(void)
{
        return false;
}

static inline bool soc_intel_is_cml(void)
{
        return false;
}
#endif /* IS_ENABLED(CONFIG_X86) */

#endif /* __PLATFORM_DATA_X86_SOC_H */
Linux
