| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * intel_tpmi.h: Intel TPMI core external interface |
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| 4 | */ |
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| 5 | |
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| 6 | #ifndef _INTEL_TPMI_H_ |
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| 7 | #define _INTEL_TPMI_H_ |
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| 8 | |
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| 9 | #include <linux/bitfield.h> |
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| 10 | |
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| 11 | #define TPMI_VERSION_INVALID 0xff |
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| 12 | #define TPMI_MINOR_VERSION(val) FIELD_GET(GENMASK(4, 0), val) |
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| 13 | #define TPMI_MAJOR_VERSION(val) FIELD_GET(GENMASK(7, 5), val) |
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| 14 | |
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| 15 | /* |
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| 16 | * List of supported TMPI IDs. |
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| 17 | * Some TMPI IDs are not used by Linux, so the numbers are not consecutive. |
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| 18 | */ |
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| 19 | enum intel_tpmi_id { |
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| 20 | TPMI_ID_RAPL = 0, /* Running Average Power Limit */ |
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| 21 | TPMI_ID_PEM = 1, /* Power and Perf excursion Monitor */ |
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| 22 | TPMI_ID_UNCORE = 2, /* Uncore Frequency Scaling */ |
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| 23 | TPMI_ID_SST = 5, /* Speed Select Technology */ |
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| 24 | TPMI_ID_PLR = 0xc, /* Performance Limit Reasons */ |
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| 25 | TPMI_CONTROL_ID = 0x80, /* Special ID for getting feature status */ |
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| 26 | TPMI_INFO_ID = 0x81, /* Special ID for PCI BDF and Package ID information */ |
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| 27 | }; |
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| 28 | |
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| 29 | /** |
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| 30 | * struct intel_tpmi_plat_info - Platform information for a TPMI device instance |
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| 31 | * @cdie_mask: Mask of all compute dies in the partition |
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| 32 | * @package_id: CPU Package id |
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| 33 | * @partition: Package partition id when multiple VSEC PCI devices per package |
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| 34 | * @segment: PCI segment ID |
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| 35 | * @bus_number: PCI bus number |
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| 36 | * @device_number: PCI device number |
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| 37 | * @function_number: PCI function number |
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| 38 | * |
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| 39 | * Structure to store platform data for a TPMI device instance. This |
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| 40 | * struct is used to return data via tpmi_get_platform_data(). |
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| 41 | */ |
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| 42 | struct intel_tpmi_plat_info { |
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| 43 | u16 cdie_mask; |
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| 44 | u8 package_id; |
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| 45 | u8 partition; |
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| 46 | u8 segment; |
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| 47 | u8 bus_number; |
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| 48 | u8 device_number; |
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| 49 | u8 function_number; |
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| 50 | }; |
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| 51 | |
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| 52 | struct intel_tpmi_plat_info *tpmi_get_platform_data(struct auxiliary_device *auxdev); |
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| 53 | struct resource *tpmi_get_resource_at_index(struct auxiliary_device *auxdev, int index); |
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| 54 | int tpmi_get_resource_count(struct auxiliary_device *auxdev); |
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| 55 | int tpmi_get_feature_status(struct auxiliary_device *auxdev, int feature_id, bool *read_blocked, |
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| 56 | bool *write_blocked); |
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| 57 | struct dentry *tpmi_get_debugfs_dir(struct auxiliary_device *auxdev); |
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| 58 | #endif |
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| 59 | |
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