forked from mirrors/linux
93e1821c80
PECI is an interface that may be used by different types of devices. Add a peci-cpu driver compatible with Intel processors. The driver is responsible for handling auxiliary devices that can subsequently be used by other drivers (e.g. hwmons). Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Acked-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Iwona Winiarska <iwona.winiarska@intel.com> Link: https://lore.kernel.org/r/20220208153639.255278-10-iwona.winiarska@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
40 lines
1.5 KiB
C
40 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (c) 2021 Intel Corporation */
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#ifndef __LINUX_PECI_CPU_H
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#define __LINUX_PECI_CPU_H
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#include <linux/types.h>
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#include "../../arch/x86/include/asm/intel-family.h"
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#define PECI_PCS_PKG_ID 0 /* Package Identifier Read */
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#define PECI_PKG_ID_CPU_ID 0x0000 /* CPUID Info */
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#define PECI_PKG_ID_PLATFORM_ID 0x0001 /* Platform ID */
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#define PECI_PKG_ID_DEVICE_ID 0x0002 /* Uncore Device ID */
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#define PECI_PKG_ID_MAX_THREAD_ID 0x0003 /* Max Thread ID */
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#define PECI_PKG_ID_MICROCODE_REV 0x0004 /* CPU Microcode Update Revision */
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#define PECI_PKG_ID_MCA_ERROR_LOG 0x0005 /* Machine Check Status */
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#define PECI_PCS_MODULE_TEMP 9 /* Per Core DTS Temperature Read */
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#define PECI_PCS_THERMAL_MARGIN 10 /* DTS thermal margin */
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#define PECI_PCS_DDR_DIMM_TEMP 14 /* DDR DIMM Temperature */
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#define PECI_PCS_TEMP_TARGET 16 /* Temperature Target Read */
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#define PECI_PCS_TDP_UNITS 30 /* Units for power/energy registers */
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struct peci_device;
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int peci_temp_read(struct peci_device *device, s16 *temp_raw);
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int peci_pcs_read(struct peci_device *device, u8 index,
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u16 param, u32 *data);
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int peci_pci_local_read(struct peci_device *device, u8 bus, u8 dev,
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u8 func, u16 reg, u32 *data);
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int peci_ep_pci_local_read(struct peci_device *device, u8 seg,
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u8 bus, u8 dev, u8 func, u16 reg, u32 *data);
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int peci_mmio_read(struct peci_device *device, u8 bar, u8 seg,
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u8 bus, u8 dev, u8 func, u64 address, u32 *data);
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#endif /* __LINUX_PECI_CPU_H */
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