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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_ASM_X86_AMD_HSMP_H_
#define _UAPI_ASM_X86_AMD_HSMP_H_
#include <linux/types.h>
#pragma pack(4)
#define HSMP_MAX_MSG_LEN 8
/*
* HSMP Messages supported
*/
enum hsmp_message_ids {
HSMP_TEST = 1, /* 01h Increments input value by 1 */
HSMP_GET_SMU_VER, /* 02h SMU FW version */
HSMP_GET_PROTO_VER, /* 03h HSMP interface version */
HSMP_GET_SOCKET_POWER, /* 04h average package power consumption */
HSMP_SET_SOCKET_POWER_LIMIT, /* 05h Set the socket power limit */
HSMP_GET_SOCKET_POWER_LIMIT, /* 06h Get current socket power limit */
HSMP_GET_SOCKET_POWER_LIMIT_MAX,/* 07h Get maximum socket power value */
HSMP_SET_BOOST_LIMIT, /* 08h Set a core maximum frequency limit */
HSMP_SET_BOOST_LIMIT_SOCKET, /* 09h Set socket maximum frequency level */
HSMP_GET_BOOST_LIMIT, /* 0Ah Get current frequency limit */
HSMP_GET_PROC_HOT, /* 0Bh Get PROCHOT status */
HSMP_SET_XGMI_LINK_WIDTH, /* 0Ch Set max and min width of xGMI Link */
HSMP_SET_DF_PSTATE, /* 0Dh Alter APEnable/Disable messages behavior */
HSMP_SET_AUTO_DF_PSTATE, /* 0Eh Enable DF P-State Performance Boost algorithm */
HSMP_GET_FCLK_MCLK, /* 0Fh Get FCLK and MEMCLK for current socket */
HSMP_GET_CCLK_THROTTLE_LIMIT, /* 10h Get CCLK frequency limit in socket */
HSMP_GET_C0_PERCENT, /* 11h Get average C0 residency in socket */
HSMP_SET_NBIO_DPM_LEVEL, /* 12h Set max/min LCLK DPM Level for a given NBIO */
/* 13h Reserved */
HSMP_GET_DDR_BANDWIDTH = 0x14, /* 14h Get theoretical maximum and current DDR Bandwidth */
HSMP_GET_TEMP_MONITOR, /* 15h Get per-DIMM temperature and refresh rates */
HSMP_MSG_ID_MAX,
};
struct hsmp_message {
__u32 msg_id; /* Message ID */
__u16 num_args; /* Number of input argument words in message */
__u16 response_sz; /* Number of expected output/response words */
__u32 args[HSMP_MAX_MSG_LEN]; /* argument/response buffer */
__u16 sock_ind; /* socket number */
};
enum hsmp_msg_type {
HSMP_RSVD = -1,
HSMP_SET = 0,
HSMP_GET = 1,
};
struct hsmp_msg_desc {
int num_args;
int response_sz;
enum hsmp_msg_type type;
};
/*
* User may use these comments as reference, please find the
* supported list of messages and message definition in the
* HSMP chapter of respective family/model PPR.
*
* Not supported messages would return -ENOMSG.
*/
static const struct hsmp_msg_desc hsmp_msg_desc_table[] = {
/* RESERVED */
{0, 0, HSMP_RSVD},
/*
* HSMP_TEST, num_args = 1, response_sz = 1
* input: args[0] = xx
* output: args[0] = xx + 1
*/
{1, 1, HSMP_GET},
/*
* HSMP_GET_SMU_VER, num_args = 0, response_sz = 1
* output: args[0] = smu fw ver
*/
{0, 1, HSMP_GET},
/*
* HSMP_GET_PROTO_VER, num_args = 0, response_sz = 1
* output: args[0] = proto version
*/
{0, 1, HSMP_GET},
/*
* HSMP_GET_SOCKET_POWER, num_args = 0, response_sz = 1
* output: args[0] = socket power in mWatts
*/
{0, 1, HSMP_GET},
/*
* HSMP_SET_SOCKET_POWER_LIMIT, num_args = 1, response_sz = 0
* input: args[0] = power limit value in mWatts
*/
{1, 0, HSMP_SET},
/*
* HSMP_GET_SOCKET_POWER_LIMIT, num_args = 0, response_sz = 1
* output: args[0] = socket power limit value in mWatts
*/
{0, 1, HSMP_GET},
/*
* HSMP_GET_SOCKET_POWER_LIMIT_MAX, num_args = 0, response_sz = 1
* output: args[0] = maximuam socket power limit in mWatts
*/
{0, 1, HSMP_GET},
/*
* HSMP_SET_BOOST_LIMIT, num_args = 1, response_sz = 0
* input: args[0] = apic id[31:16] + boost limit value in MHz[15:0]
*/
{1, 0, HSMP_SET},
/*
* HSMP_SET_BOOST_LIMIT_SOCKET, num_args = 1, response_sz = 0
* input: args[0] = boost limit value in MHz
*/
{1, 0, HSMP_SET},
/*
* HSMP_GET_BOOST_LIMIT, num_args = 1, response_sz = 1
* input: args[0] = apic id
* output: args[0] = boost limit value in MHz
*/
{1, 1, HSMP_GET},
/*
* HSMP_GET_PROC_HOT, num_args = 0, response_sz = 1
* output: args[0] = proc hot status
*/
{0, 1, HSMP_GET},
/*
* HSMP_SET_XGMI_LINK_WIDTH, num_args = 1, response_sz = 0
* input: args[0] = min link width[15:8] + max link width[7:0]
*/
{1, 0, HSMP_SET},
/*
* HSMP_SET_DF_PSTATE, num_args = 1, response_sz = 0
* input: args[0] = df pstate[7:0]
*/
{1, 0, HSMP_SET},
/* HSMP_SET_AUTO_DF_PSTATE, num_args = 0, response_sz = 0 */
{0, 0, HSMP_SET},
/*
* HSMP_GET_FCLK_MCLK, num_args = 0, response_sz = 2
* output: args[0] = fclk in MHz, args[1] = mclk in MHz
*/
{0, 2, HSMP_GET},
/*
* HSMP_GET_CCLK_THROTTLE_LIMIT, num_args = 0, response_sz = 1
* output: args[0] = core clock in MHz
*/
{0, 1, HSMP_GET},
/*
* HSMP_GET_C0_PERCENT, num_args = 0, response_sz = 1
* output: args[0] = average c0 residency
*/
{0, 1, HSMP_GET},
/*
* HSMP_SET_NBIO_DPM_LEVEL, num_args = 1, response_sz = 0
* input: args[0] = nbioid[23:16] + max dpm level[15:8] + min dpm level[7:0]
*/
{1, 0, HSMP_SET},
/* RESERVED message */
{0, 0, HSMP_RSVD},
/*
* HSMP_GET_DDR_BANDWIDTH, num_args = 0, response_sz = 1
* output: args[0] = max bw in Gbps[31:20] + utilised bw in Gbps[19:8] +
* bw in percentage[7:0]
*/
{0, 1, HSMP_GET},
/*
* HSMP_GET_TEMP_MONITOR, num_args = 0, response_sz = 1
* output: args[0] = temperature in degree celsius. [15:8] integer part +
* [7:5] fractional part
*/
{0, 1, HSMP_GET},
};
/* Reset to default packing */
#pragma pack()
/* Define unique ioctl command for hsmp msgs using generic _IOWR */
#define HSMP_BASE_IOCTL_NR 0xF8
#define HSMP_IOCTL_CMD _IOWR(HSMP_BASE_IOCTL_NR, 0, struct hsmp_message)
#endif /*_ASM_X86_AMD_HSMP_H_*/
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