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