Quelle isst_if.h
Sprache: C
/* 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];
};
#define MAX_FABRIC_COUNT 8
/**
* struct isst_perf_level_fabric_info - Structure to get SST - PP fabric details
* @ socket_id : Socket / package id
* @ power_domain_id : Power Domain id
* @ level : SST - PP level for which caller wants to get information
* @ max_fabrics : Count of fabrics in resonse
* @ p0_fabric_freq_mhz : Fabric ( Uncore ) maximum frequency
* @ p1_fabric_freq_mhz : Fabric ( Uncore ) TDP frequency
* @ pm_fabric_freq_mhz : Fabric ( Uncore ) minimum frequency
*
* Structure used to get information on frequencies for fabrics .
*/
struct isst_perf_level_fabric_info {
__u8 socket_id;
__u8 power_domain_id;
__u16 level;
__u16 max_fabrics;
__u16 p0_fabric_freq_mhz[MAX_FABRIC_COUNT];
__u16 p1_fabric_freq_mhz[MAX_FABRIC_COUNT];
__u16 pm_fabric_freq_mhz[MAX_FABRIC_COUNT];
};
/**
* 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 0 xFE
#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 *)
#define ISST_IF_GET_PERF_LEVEL_FABRIC_INFO _IOR(ISST_IF_MAGIC, 17 ,\
struct isst_perf_level_fabric_info *)
#endif
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