476 lines
15 KiB
C
476 lines
15 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Intel Speed Select Interface: OS to hardware Interface
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* Copyright (c) 2019, Intel Corporation.
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* All rights reserved.
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*
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* Author: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
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*/
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#ifndef __ISST_IF_H
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#define __ISST_IF_H
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#include <linux/types.h>
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/**
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* struct isst_if_platform_info - Define platform information
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* @api_version: Version of the firmware document, which this driver
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* can communicate
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* @driver_version: Driver version, which will help user to send right
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* commands. Even if the firmware is capable, driver may
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* not be ready
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* @max_cmds_per_ioctl: Returns the maximum number of commands driver will
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* accept in a single ioctl
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* @mbox_supported: Support of mail box interface
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* @mmio_supported: Support of mmio interface for core-power feature
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*
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* Used to return output of IOCTL ISST_IF_GET_PLATFORM_INFO. This
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* information can be used by the user space, to get the driver, firmware
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* support and also number of commands to send in a single IOCTL request.
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*/
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struct isst_if_platform_info {
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__u16 api_version;
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__u16 driver_version;
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__u16 max_cmds_per_ioctl;
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__u8 mbox_supported;
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__u8 mmio_supported;
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};
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/**
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* struct isst_if_cpu_map - CPU mapping between logical and physical CPU
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* @logical_cpu: Linux logical CPU number
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* @physical_cpu: PUNIT CPU number
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*
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* Used to convert from Linux logical CPU to PUNIT CPU numbering scheme.
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* The PUNIT CPU number is different than APIC ID based CPU numbering.
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*/
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struct isst_if_cpu_map {
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__u32 logical_cpu;
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__u32 physical_cpu;
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};
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/**
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* struct isst_if_cpu_maps - structure for CPU map IOCTL
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* @cmd_count: Number of CPU mapping command in cpu_map[]
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* @cpu_map[]: Holds one or more CPU map data structure
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*
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* This structure used with ioctl ISST_IF_GET_PHY_ID to send
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* one or more CPU mapping commands. Here IOCTL return value indicates
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* number of commands sent or error number if no commands have been sent.
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*/
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struct isst_if_cpu_maps {
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__u32 cmd_count;
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struct isst_if_cpu_map cpu_map[1];
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};
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/**
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* struct isst_if_io_reg - Read write PUNIT IO register
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* @read_write: Value 0: Read, 1: Write
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* @logical_cpu: Logical CPU number to get target PCI device.
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* @reg: PUNIT register offset
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* @value: For write operation value to write and for
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* read placeholder read value
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*
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* Structure to specify read/write data to PUNIT registers.
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*/
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struct isst_if_io_reg {
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__u32 read_write; /* Read:0, Write:1 */
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__u32 logical_cpu;
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__u32 reg;
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__u32 value;
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};
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/**
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* struct isst_if_io_regs - structure for IO register commands
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* @cmd_count: Number of io reg commands in io_reg[]
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* @io_reg[]: Holds one or more io_reg command structure
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*
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* This structure used with ioctl ISST_IF_IO_CMD to send
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* one or more read/write commands to PUNIT. Here IOCTL return value
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* indicates number of requests sent or error number if no requests have
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* been sent.
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*/
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struct isst_if_io_regs {
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__u32 req_count;
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struct isst_if_io_reg io_reg[1];
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};
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/**
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* struct isst_if_mbox_cmd - Structure to define mail box command
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* @logical_cpu: Logical CPU number to get target PCI device
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* @parameter: Mailbox parameter value
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* @req_data: Request data for the mailbox
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* @resp_data: Response data for mailbox command response
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* @command: Mailbox command value
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* @sub_command: Mailbox sub command value
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* @reserved: Unused, set to 0
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*
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* Structure to specify mailbox command to be sent to PUNIT.
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*/
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struct isst_if_mbox_cmd {
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__u32 logical_cpu;
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__u32 parameter;
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__u32 req_data;
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__u32 resp_data;
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__u16 command;
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__u16 sub_command;
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__u32 reserved;
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};
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/**
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* struct isst_if_mbox_cmds - structure for mailbox commands
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* @cmd_count: Number of mailbox commands in mbox_cmd[]
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* @mbox_cmd[]: Holds one or more mbox commands
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*
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* This structure used with ioctl ISST_IF_MBOX_COMMAND to send
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* one or more mailbox commands to PUNIT. Here IOCTL return value
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* indicates number of commands sent or error number if no commands have
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* been sent.
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*/
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struct isst_if_mbox_cmds {
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__u32 cmd_count;
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struct isst_if_mbox_cmd mbox_cmd[1];
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};
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/**
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* struct isst_if_msr_cmd - Structure to define msr command
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* @read_write: Value 0: Read, 1: Write
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* @logical_cpu: Logical CPU number
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* @msr: MSR number
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* @data: For write operation, data to write, for read
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* place holder
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*
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* Structure to specify MSR command related to PUNIT.
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*/
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struct isst_if_msr_cmd {
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__u32 read_write; /* Read:0, Write:1 */
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__u32 logical_cpu;
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__u64 msr;
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__u64 data;
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};
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/**
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* struct isst_if_msr_cmds - structure for msr commands
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* @cmd_count: Number of mailbox commands in msr_cmd[]
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* @msr_cmd[]: Holds one or more msr commands
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*
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* This structure used with ioctl ISST_IF_MSR_COMMAND to send
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* one or more MSR commands. IOCTL return value indicates number of
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* commands sent or error number if no commands have been sent.
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*/
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struct isst_if_msr_cmds {
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__u32 cmd_count;
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struct isst_if_msr_cmd msr_cmd[1];
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};
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/**
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* struct isst_core_power - Structure to get/set core_power feature
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* @get_set: 0: Get, 1: Set
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @enable: Feature enable status
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* @priority_type: Priority type for the feature (ordered/proportional)
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*
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* Structure to get/set core_power feature state using IOCTL
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* ISST_IF_CORE_POWER_STATE.
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*/
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struct isst_core_power {
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__u8 get_set;
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__u8 socket_id;
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__u8 power_domain_id;
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__u8 enable;
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__u8 supported;
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__u8 priority_type;
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};
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/**
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* struct isst_clos_param - Structure to get/set clos praram
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* @get_set: 0: Get, 1: Set
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* clos: Clos ID for the parameters
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* min_freq_mhz: Minimum frequency in MHz
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* max_freq_mhz: Maximum frequency in MHz
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* prop_prio: Proportional priority from 0-15
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*
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* Structure to get/set per clos property using IOCTL
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* ISST_IF_CLOS_PARAM.
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*/
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struct isst_clos_param {
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__u8 get_set;
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__u8 socket_id;
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__u8 power_domain_id;
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__u8 clos;
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__u16 min_freq_mhz;
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__u16 max_freq_mhz;
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__u8 prop_prio;
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};
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/**
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* struct isst_if_clos_assoc - Structure to assign clos to a CPU
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @logical_cpu: CPU number
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* @clos: Clos ID to assign to the logical CPU
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*
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* Structure to get/set core_power feature.
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*/
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struct isst_if_clos_assoc {
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__u8 socket_id;
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__u8 power_domain_id;
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__u16 logical_cpu;
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__u16 clos;
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};
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/**
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* struct isst_if_clos_assoc_cmds - Structure to assign clos to CPUs
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* @cmd_count: Number of cmds (cpus) in this request
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* @get_set: Request is for get or set
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* @punit_cpu_map: Set to 1 if the CPU number is punit numbering not
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* Linux CPU number
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*
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* Structure used to get/set associate CPUs to clos using IOCTL
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* ISST_IF_CLOS_ASSOC.
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*/
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struct isst_if_clos_assoc_cmds {
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__u16 cmd_count;
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__u16 get_set;
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__u16 punit_cpu_map;
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struct isst_if_clos_assoc assoc_info[1];
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};
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/**
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* struct isst_tpmi_instance_count - Get number of TPMI instances per socket
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* @socket_id: Socket/package id
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* @count: Number of instances
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* @valid_mask: Mask of instances as there can be holes
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*
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* Structure used to get TPMI instances information using
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* IOCTL ISST_IF_COUNT_TPMI_INSTANCES.
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*/
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struct isst_tpmi_instance_count {
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__u8 socket_id;
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__u8 count;
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__u16 valid_mask;
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};
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/**
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* struct isst_perf_level_info - Structure to get information on SST-PP levels
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @logical_cpu: CPU number
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* @clos: Clos ID to assign to the logical CPU
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* @max_level: Maximum performance level supported by the platform
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* @feature_rev: The feature revision for SST-PP supported by the platform
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* @level_mask: Mask of supported performance levels
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* @current_level: Current performance level
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* @feature_state: SST-BF and SST-TF (enabled/disabled) status at current level
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* @locked: SST-PP performance level change is locked/unlocked
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* @enabled: SST-PP feature is enabled or not
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* @sst-tf_support: SST-TF support status at this level
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* @sst-bf_support: SST-BF support status at this level
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*
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* Structure to get SST-PP details using IOCTL ISST_IF_PERF_LEVELS.
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*/
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struct isst_perf_level_info {
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__u8 socket_id;
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__u8 power_domain_id;
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__u8 max_level;
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__u8 feature_rev;
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__u8 level_mask;
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__u8 current_level;
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__u8 feature_state;
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__u8 locked;
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__u8 enabled;
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__u8 sst_tf_support;
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__u8 sst_bf_support;
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};
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/**
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* struct isst_perf_level_control - Structure to set SST-PP level
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @level: level to set
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*
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* Structure used change SST-PP level using IOCTL ISST_IF_PERF_SET_LEVEL.
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*/
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struct isst_perf_level_control {
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__u8 socket_id;
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__u8 power_domain_id;
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__u8 level;
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};
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/**
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* struct isst_perf_feature_control - Structure to activate SST-BF/SST-TF
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @feature: bit 0 = SST-BF state, bit 1 = SST-TF state
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*
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* Structure used to enable SST-BF/SST-TF using IOCTL ISST_IF_PERF_SET_FEATURE.
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*/
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struct isst_perf_feature_control {
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__u8 socket_id;
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__u8 power_domain_id;
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__u8 feature;
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};
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#define TRL_MAX_BUCKETS 8
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#define TRL_MAX_LEVELS 6
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/**
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* struct isst_perf_level_data_info - Structure to get SST-PP level details
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @level: SST-PP level for which caller wants to get information
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* @tdp_ratio: TDP Ratio
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* @base_freq_mhz: Base frequency in MHz
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* @base_freq_avx2_mhz: AVX2 Base frequency in MHz
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* @base_freq_avx512_mhz: AVX512 base frequency in MHz
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* @base_freq_amx_mhz: AMX base frequency in MHz
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* @thermal_design_power_w: Thermal design (TDP) power
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* @tjunction_max_c: Max junction temperature
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* @max_memory_freq_mhz: Max memory frequency in MHz
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* @cooling_type: Type of cooling is used
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* @p0_freq_mhz: core maximum frequency
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* @p1_freq_mhz: Core TDP frequency
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* @pn_freq_mhz: Core maximum efficiency frequency
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* @pm_freq_mhz: Core minimum frequency
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* @p0_fabric_freq_mhz: Fabric (Uncore) maximum frequency
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* @p1_fabric_freq_mhz: Fabric (Uncore) TDP frequency
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* @pn_fabric_freq_mhz: Fabric (Uncore) minimum efficiency frequency
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* @pm_fabric_freq_mhz: Fabric (Uncore) minimum frequency
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* @max_buckets: Maximum trl buckets
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* @max_trl_levels: Maximum trl levels
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* @bucket_core_counts[TRL_MAX_BUCKETS]: Number of cores per bucket
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* @trl_freq_mhz[TRL_MAX_LEVELS][TRL_MAX_BUCKETS]: maximum frequency
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* for a bucket and trl level
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*
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* Structure used to get information on frequencies and TDP for a SST-PP
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* level using ISST_IF_GET_PERF_LEVEL_INFO.
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*/
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struct isst_perf_level_data_info {
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__u8 socket_id;
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__u8 power_domain_id;
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__u16 level;
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__u16 tdp_ratio;
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__u16 base_freq_mhz;
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__u16 base_freq_avx2_mhz;
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__u16 base_freq_avx512_mhz;
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__u16 base_freq_amx_mhz;
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__u16 thermal_design_power_w;
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__u16 tjunction_max_c;
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__u16 max_memory_freq_mhz;
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__u16 cooling_type;
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__u16 p0_freq_mhz;
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__u16 p1_freq_mhz;
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__u16 pn_freq_mhz;
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__u16 pm_freq_mhz;
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__u16 p0_fabric_freq_mhz;
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__u16 p1_fabric_freq_mhz;
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__u16 pn_fabric_freq_mhz;
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__u16 pm_fabric_freq_mhz;
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__u16 max_buckets;
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__u16 max_trl_levels;
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__u16 bucket_core_counts[TRL_MAX_BUCKETS];
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__u16 trl_freq_mhz[TRL_MAX_LEVELS][TRL_MAX_BUCKETS];
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};
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/**
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* struct isst_perf_level_cpu_mask - Structure to get SST-PP level CPU mask
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @level: SST-PP level for which caller wants to get information
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* @punit_cpu_map: Set to 1 if the CPU number is punit numbering not
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* Linux CPU number. If 0 CPU buffer is copied to user space
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* supplied cpu_buffer of size cpu_buffer_size. Punit
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* cpu mask is copied to "mask" field.
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* @mask: cpu mask for this PP level (punit CPU numbering)
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* @cpu_buffer_size: size of cpu_buffer also used to return the copied CPU
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* buffer size.
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* @cpu_buffer: Buffer to copy CPU mask when punit_cpu_map is 0
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*
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* Structure used to get cpumask for a SST-PP level using
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* IOCTL ISST_IF_GET_PERF_LEVEL_CPU_MASK. Also used to get CPU mask for
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* IOCTL ISST_IF_GET_BASE_FREQ_CPU_MASK for SST-BF.
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*/
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struct isst_perf_level_cpu_mask {
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__u8 socket_id;
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__u8 power_domain_id;
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__u8 level;
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__u8 punit_cpu_map;
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__u64 mask;
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__u16 cpu_buffer_size;
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__s8 cpu_buffer[1];
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};
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/**
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* struct isst_base_freq_info - Structure to get SST-BF frequencies
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @level: SST-PP level for which caller wants to get information
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* @high_base_freq_mhz: High priority CPU base frequency
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* @low_base_freq_mhz: Low priority CPU base frequency
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* @tjunction_max_c: Max junction temperature
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* @thermal_design_power_w: Thermal design power in watts
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*
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* Structure used to get SST-BF information using
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* IOCTL ISST_IF_GET_BASE_FREQ_INFO.
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*/
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struct isst_base_freq_info {
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__u8 socket_id;
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__u8 power_domain_id;
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__u16 level;
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__u16 high_base_freq_mhz;
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__u16 low_base_freq_mhz;
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__u16 tjunction_max_c;
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__u16 thermal_design_power_w;
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};
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/**
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* struct isst_turbo_freq_info - Structure to get SST-TF frequencies
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* @socket_id: Socket/package id
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* @power_domain: Power Domain id
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* @level: SST-PP level for which caller wants to get information
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* @max_clip_freqs: Maximum number of low priority core clipping frequencies
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* @lp_clip_freq_mhz: Clip frequencies per trl level
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* @bucket_core_counts: Maximum number of cores for a bucket
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* @trl_freq_mhz: Frequencies per trl level for each bucket
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*
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* Structure used to get SST-TF information using
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* IOCTL ISST_IF_GET_TURBO_FREQ_INFO.
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*/
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struct isst_turbo_freq_info {
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__u8 socket_id;
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__u8 power_domain_id;
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__u16 level;
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__u16 max_clip_freqs;
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__u16 max_buckets;
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__u16 max_trl_levels;
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__u16 lp_clip_freq_mhz[TRL_MAX_LEVELS];
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__u16 bucket_core_counts[TRL_MAX_BUCKETS];
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__u16 trl_freq_mhz[TRL_MAX_LEVELS][TRL_MAX_BUCKETS];
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};
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#define ISST_IF_MAGIC 0xFE
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#define ISST_IF_GET_PLATFORM_INFO _IOR(ISST_IF_MAGIC, 0, struct isst_if_platform_info *)
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#define ISST_IF_GET_PHY_ID _IOWR(ISST_IF_MAGIC, 1, struct isst_if_cpu_map *)
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#define ISST_IF_IO_CMD _IOW(ISST_IF_MAGIC, 2, struct isst_if_io_regs *)
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#define ISST_IF_MBOX_COMMAND _IOWR(ISST_IF_MAGIC, 3, struct isst_if_mbox_cmds *)
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#define ISST_IF_MSR_COMMAND _IOWR(ISST_IF_MAGIC, 4, struct isst_if_msr_cmds *)
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#define ISST_IF_COUNT_TPMI_INSTANCES _IOR(ISST_IF_MAGIC, 5, struct isst_tpmi_instance_count *)
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#define ISST_IF_CORE_POWER_STATE _IOWR(ISST_IF_MAGIC, 6, struct isst_core_power *)
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#define ISST_IF_CLOS_PARAM _IOWR(ISST_IF_MAGIC, 7, struct isst_clos_param *)
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#define ISST_IF_CLOS_ASSOC _IOWR(ISST_IF_MAGIC, 8, struct isst_if_clos_assoc_cmds *)
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#define ISST_IF_PERF_LEVELS _IOWR(ISST_IF_MAGIC, 9, struct isst_perf_level_info *)
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#define ISST_IF_PERF_SET_LEVEL _IOW(ISST_IF_MAGIC, 10, struct isst_perf_level_control *)
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#define ISST_IF_PERF_SET_FEATURE _IOW(ISST_IF_MAGIC, 11, struct isst_perf_feature_control *)
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#define ISST_IF_GET_PERF_LEVEL_INFO _IOR(ISST_IF_MAGIC, 12, struct isst_perf_level_data_info *)
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#define ISST_IF_GET_PERF_LEVEL_CPU_MASK _IOR(ISST_IF_MAGIC, 13, struct isst_perf_level_cpu_mask *)
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#define ISST_IF_GET_BASE_FREQ_INFO _IOR(ISST_IF_MAGIC, 14, struct isst_base_freq_info *)
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#define ISST_IF_GET_BASE_FREQ_CPU_MASK _IOR(ISST_IF_MAGIC, 15, struct isst_perf_level_cpu_mask *)
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#define ISST_IF_GET_TURBO_FREQ_INFO _IOR(ISST_IF_MAGIC, 16, struct isst_turbo_freq_info *)
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#endif
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