include/linux/peci-cpu.h

root/include/linux/peci-cpu.h
/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2021 Intel Corporation */

#ifndef __LINUX_PECI_CPU_H
#define __LINUX_PECI_CPU_H

#include <linux/types.h>

/* Copied from x86 <asm/processor.h> */
#define X86_VENDOR_INTEL       0

/* Copied from x86 <asm/cpu_device_id.h> */
#define VFM_MODEL_BIT   0
#define VFM_FAMILY_BIT  8
#define VFM_VENDOR_BIT  16
#define VFM_RSVD_BIT    24

#define VFM_MODEL_MASK  GENMASK(VFM_FAMILY_BIT - 1, VFM_MODEL_BIT)
#define VFM_FAMILY_MASK GENMASK(VFM_VENDOR_BIT - 1, VFM_FAMILY_BIT)
#define VFM_VENDOR_MASK GENMASK(VFM_RSVD_BIT - 1, VFM_VENDOR_BIT)

#define VFM_MODEL(vfm)  (((vfm) & VFM_MODEL_MASK) >> VFM_MODEL_BIT)
#define VFM_FAMILY(vfm) (((vfm) & VFM_FAMILY_MASK) >> VFM_FAMILY_BIT)
#define VFM_VENDOR(vfm) (((vfm) & VFM_VENDOR_MASK) >> VFM_VENDOR_BIT)

#define VFM_MAKE(_vendor, _family, _model) (    \
        ((_model) << VFM_MODEL_BIT) |           \
        ((_family) << VFM_FAMILY_BIT) |         \
        ((_vendor) << VFM_VENDOR_BIT)           \
)
/* End of copied code */

#include "../../arch/x86/include/asm/intel-family.h"

#define PECI_PCS_PKG_ID                 0  /* Package Identifier Read */
#define  PECI_PKG_ID_CPU_ID             0x0000  /* CPUID Info */
#define  PECI_PKG_ID_PLATFORM_ID        0x0001  /* Platform ID */
#define  PECI_PKG_ID_DEVICE_ID          0x0002  /* Uncore Device ID */
#define  PECI_PKG_ID_MAX_THREAD_ID      0x0003  /* Max Thread ID */
#define  PECI_PKG_ID_MICROCODE_REV      0x0004  /* CPU Microcode Update Revision */
#define  PECI_PKG_ID_MCA_ERROR_LOG      0x0005  /* Machine Check Status */
#define PECI_PCS_MODULE_TEMP            9  /* Per Core DTS Temperature Read */
#define PECI_PCS_THERMAL_MARGIN         10 /* DTS thermal margin */
#define PECI_PCS_DDR_DIMM_TEMP          14 /* DDR DIMM Temperature */
#define PECI_PCS_TEMP_TARGET            16 /* Temperature Target Read */
#define PECI_PCS_TDP_UNITS              30 /* Units for power/energy registers */

struct peci_device;

int peci_temp_read(struct peci_device *device, s16 *temp_raw);

int peci_pcs_read(struct peci_device *device, u8 index,
                  u16 param, u32 *data);

int peci_pci_local_read(struct peci_device *device, u8 bus, u8 dev,
                        u8 func, u16 reg, u32 *data);

int peci_ep_pci_local_read(struct peci_device *device, u8 seg,
                           u8 bus, u8 dev, u8 func, u16 reg, u32 *data);

int peci_mmio_read(struct peci_device *device, u8 bar, u8 seg,
                   u8 bus, u8 dev, u8 func, u64 address, u32 *data);

#endif /* __LINUX_PECI_CPU_H */
Linux
