59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* intel_tpmi.h: Intel TPMI core external interface
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*/
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#ifndef _INTEL_TPMI_H_
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#define _INTEL_TPMI_H_
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#include <linux/bitfield.h>
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#define TPMI_VERSION_INVALID 0xff
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#define TPMI_MINOR_VERSION(val) FIELD_GET(GENMASK(4, 0), val)
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#define TPMI_MAJOR_VERSION(val) FIELD_GET(GENMASK(7, 5), val)
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/*
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* List of supported TMPI IDs.
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* Some TMPI IDs are not used by Linux, so the numbers are not consecutive.
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*/
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enum intel_tpmi_id {
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TPMI_ID_RAPL = 0, /* Running Average Power Limit */
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TPMI_ID_PEM = 1, /* Power and Perf excursion Monitor */
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TPMI_ID_UNCORE = 2, /* Uncore Frequency Scaling */
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TPMI_ID_SST = 5, /* Speed Select Technology */
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TPMI_ID_PLR = 0xc, /* Performance Limit Reasons */
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TPMI_CONTROL_ID = 0x80, /* Special ID for getting feature status */
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TPMI_INFO_ID = 0x81, /* Special ID for PCI BDF and Package ID information */
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};
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/**
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* struct intel_tpmi_plat_info - Platform information for a TPMI device instance
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* @cdie_mask: Mask of all compute dies in the partition
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* @package_id: CPU Package id
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* @partition: Package partition id when multiple VSEC PCI devices per package
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* @segment: PCI segment ID
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* @bus_number: PCI bus number
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* @device_number: PCI device number
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* @function_number: PCI function number
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*
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* Structure to store platform data for a TPMI device instance. This
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* struct is used to return data via tpmi_get_platform_data().
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*/
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struct intel_tpmi_plat_info {
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u16 cdie_mask;
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u8 package_id;
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u8 partition;
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u8 segment;
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u8 bus_number;
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u8 device_number;
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u8 function_number;
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};
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struct intel_tpmi_plat_info *tpmi_get_platform_data(struct auxiliary_device *auxdev);
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struct resource *tpmi_get_resource_at_index(struct auxiliary_device *auxdev, int index);
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int tpmi_get_resource_count(struct auxiliary_device *auxdev);
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int tpmi_get_feature_status(struct auxiliary_device *auxdev, int feature_id, bool *read_blocked,
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bool *write_blocked);
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struct dentry *tpmi_get_debugfs_dir(struct auxiliary_device *auxdev);
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#endif
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