include/linux/platform_data/x86/soc.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Helpers for Intel SoC model detection
   4  *
   5  * Copyright (c) 2019, Intel Corporation.
   6  */
   7
   8 #ifndef __PLATFORM_DATA_X86_SOC_H
   9 #define __PLATFORM_DATA_X86_SOC_H
  10
  11 #include <linux/types.h>
  12
  13 #if IS_ENABLED(CONFIG_X86)
  14
  15 #include <linux/mod_devicetable.h>
  16
  17 #include <asm/cpu_device_id.h>
  18
  19 #define SOC_INTEL_IS_CPU(soc, type)                             \
  20 static inline bool soc_intel_is_##soc(void)                     \
  21 {                                                               \
  22         static const struct x86_cpu_id soc##_cpu_ids[] = {      \
  23                 X86_MATCH_VFM(type, NULL),                      \
  24                 {}                                              \
  25         };                                                      \
  26         const struct x86_cpu_id *id;                            \
  27                                                                 \
  28         id = x86_match_cpu(soc##_cpu_ids);                      \
  29         if (id)                                                 \
  30                 return true;                                    \
  31         return false;                                           \
  32 }
  33
  34 SOC_INTEL_IS_CPU(byt, INTEL_ATOM_SILVERMONT);
  35 SOC_INTEL_IS_CPU(cht, INTEL_ATOM_AIRMONT);
  36 SOC_INTEL_IS_CPU(apl, INTEL_ATOM_GOLDMONT);
  37 SOC_INTEL_IS_CPU(glk, INTEL_ATOM_GOLDMONT_PLUS);
  38 SOC_INTEL_IS_CPU(cml, INTEL_KABYLAKE_L);
  39
  40 #undef SOC_INTEL_IS_CPU
  41
  42 #else /* IS_ENABLED(CONFIG_X86) */
  43
  44 static inline bool soc_intel_is_byt(void)
  45 {
  46         return false;
  47 }
  48
  49 static inline bool soc_intel_is_cht(void)
  50 {
  51         return false;
  52 }
  53
  54 static inline bool soc_intel_is_apl(void)
  55 {
  56         return false;
  57 }
  58
  59 static inline bool soc_intel_is_glk(void)
  60 {
  61         return false;
  62 }
  63
  64 static inline bool soc_intel_is_cml(void)
  65 {
  66         return false;
  67 }
  68 #endif /* IS_ENABLED(CONFIG_X86) */
  69
  70 #endif /* __PLATFORM_DATA_X86_SOC_H */