include/linux/peci-cpu.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (c) 2021 Intel Corporation */
   3
   4 #ifndef __LINUX_PECI_CPU_H
   5 #define __LINUX_PECI_CPU_H
   6
   7 #include <linux/types.h>
   8
   9 /* Copied from x86 <asm/processor.h> */
  10 #define X86_VENDOR_INTEL       0
  11
  12 /* Copied from x86 <asm/cpu_device_id.h> */
  13 #define VFM_MODEL_BIT   0
  14 #define VFM_FAMILY_BIT  8
  15 #define VFM_VENDOR_BIT  16
  16 #define VFM_RSVD_BIT    24
  17
  18 #define VFM_MODEL_MASK  GENMASK(VFM_FAMILY_BIT - 1, VFM_MODEL_BIT)
  19 #define VFM_FAMILY_MASK GENMASK(VFM_VENDOR_BIT - 1, VFM_FAMILY_BIT)
  20 #define VFM_VENDOR_MASK GENMASK(VFM_RSVD_BIT - 1, VFM_VENDOR_BIT)
  21
  22 #define VFM_MODEL(vfm)  (((vfm) & VFM_MODEL_MASK) >> VFM_MODEL_BIT)
  23 #define VFM_FAMILY(vfm) (((vfm) & VFM_FAMILY_MASK) >> VFM_FAMILY_BIT)
  24 #define VFM_VENDOR(vfm) (((vfm) & VFM_VENDOR_MASK) >> VFM_VENDOR_BIT)
  25
  26 #define VFM_MAKE(_vendor, _family, _model) (    \
  27         ((_model) << VFM_MODEL_BIT) |           \
  28         ((_family) << VFM_FAMILY_BIT) |         \
  29         ((_vendor) << VFM_VENDOR_BIT)           \
  30 )
  31 /* End of copied code */
  32
  33 #include "../../arch/x86/include/asm/intel-family.h"
  34
  35 #define PECI_PCS_PKG_ID                 0  /* Package Identifier Read */
  36 #define  PECI_PKG_ID_CPU_ID             0x0000  /* CPUID Info */
  37 #define  PECI_PKG_ID_PLATFORM_ID        0x0001  /* Platform ID */
  38 #define  PECI_PKG_ID_DEVICE_ID          0x0002  /* Uncore Device ID */
  39 #define  PECI_PKG_ID_MAX_THREAD_ID      0x0003  /* Max Thread ID */
  40 #define  PECI_PKG_ID_MICROCODE_REV      0x0004  /* CPU Microcode Update Revision */
  41 #define  PECI_PKG_ID_MCA_ERROR_LOG      0x0005  /* Machine Check Status */
  42 #define PECI_PCS_MODULE_TEMP            9  /* Per Core DTS Temperature Read */
  43 #define PECI_PCS_THERMAL_MARGIN         10 /* DTS thermal margin */
  44 #define PECI_PCS_DDR_DIMM_TEMP          14 /* DDR DIMM Temperature */
  45 #define PECI_PCS_TEMP_TARGET            16 /* Temperature Target Read */
  46 #define PECI_PCS_TDP_UNITS              30 /* Units for power/energy registers */
  47
  48 struct peci_device;
  49
  50 int peci_temp_read(struct peci_device *device, s16 *temp_raw);
  51
  52 int peci_pcs_read(struct peci_device *device, u8 index,
  53                   u16 param, u32 *data);
  54
  55 int peci_pci_local_read(struct peci_device *device, u8 bus, u8 dev,
  56                         u8 func, u16 reg, u32 *data);
  57
  58 int peci_ep_pci_local_read(struct peci_device *device, u8 seg,
  59                            u8 bus, u8 dev, u8 func, u16 reg, u32 *data);
  60
  61 int peci_mmio_read(struct peci_device *device, u8 bar, u8 seg,
  62                    u8 bus, u8 dev, u8 func, u64 address, u32 *data);
  63
  64 #endif /* __LINUX_PECI_CPU_H */