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Filename :
amd_hsmp.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef _ASM_X86_AMD_HSMP_H_ #define _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 */ HSMP_GET_NBIO_DPM_LEVEL, /* 13h Get LCLK DPM level min and max for a given NBIO */ HSMP_GET_DDR_BANDWIDTH, /* 14h Get theoretical maximum and current DDR Bandwidth */ HSMP_GET_TEMP_MONITOR, /* 15h Get socket temperature */ HSMP_GET_DIMM_TEMP_RANGE, /* 16h Get per-DIMM temperature range and refresh rate */ HSMP_GET_DIMM_POWER, /* 17h Get per-DIMM power consumption */ HSMP_GET_DIMM_THERMAL, /* 18h Get per-DIMM thermal sensors */ HSMP_GET_SOCKET_FREQ_LIMIT, /* 19h Get current active frequency per socket */ HSMP_GET_CCLK_CORE_LIMIT, /* 1Ah Get CCLK frequency limit per core */ HSMP_GET_RAILS_SVI, /* 1Bh Get SVI-based Telemetry for all rails */ HSMP_GET_SOCKET_FMAX_FMIN, /* 1Ch Get Fmax and Fmin per socket */ HSMP_GET_IOLINK_BANDWITH, /* 1Dh Get current bandwidth on IO Link */ HSMP_GET_XGMI_BANDWITH, /* 1Eh Get current bandwidth on xGMI Link */ HSMP_SET_GMI3_WIDTH, /* 1Fh Set max and min GMI3 Link width */ HSMP_SET_PCI_RATE, /* 20h Control link rate on PCIe devices */ HSMP_SET_POWER_MODE, /* 21h Select power efficiency profile policy */ HSMP_SET_PSTATE_MAX_MIN, /* 22h Set the max and min DF P-State */ 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}, /* * HSMP_GET_NBIO_DPM_LEVEL, num_args = 1, response_sz = 1 * input: args[0] = nbioid[23:16] * output: args[0] = max dpm level[15:8] + min dpm level[7:0] */ {1, 1, HSMP_GET}, /* * 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}, /* * HSMP_GET_DIMM_TEMP_RANGE, num_args = 1, response_sz = 1 * input: args[0] = DIMM address[7:0] * output: args[0] = refresh rate[3] + temperature range[2:0] */ {1, 1, HSMP_GET}, /* * HSMP_GET_DIMM_POWER, num_args = 1, response_sz = 1 * input: args[0] = DIMM address[7:0] * output: args[0] = DIMM power in mW[31:17] + update rate in ms[16:8] + * DIMM address[7:0] */ {1, 1, HSMP_GET}, /* * HSMP_GET_DIMM_THERMAL, num_args = 1, response_sz = 1 * input: args[0] = DIMM address[7:0] * output: args[0] = temperature in degree celcius[31:21] + update rate in ms[16:8] + * DIMM address[7:0] */ {1, 1, HSMP_GET}, /* * HSMP_GET_SOCKET_FREQ_LIMIT, num_args = 0, response_sz = 1 * output: args[0] = frequency in MHz[31:16] + frequency source[15:0] */ {0, 1, HSMP_GET}, /* * HSMP_GET_CCLK_CORE_LIMIT, num_args = 1, response_sz = 1 * input: args[0] = apic id [31:0] * output: args[0] = frequency in MHz[31:0] */ {1, 1, HSMP_GET}, /* * HSMP_GET_RAILS_SVI, num_args = 0, response_sz = 1 * output: args[0] = power in mW[31:0] */ {0, 1, HSMP_GET}, /* * HSMP_GET_SOCKET_FMAX_FMIN, num_args = 0, response_sz = 1 * output: args[0] = fmax in MHz[31:16] + fmin in MHz[15:0] */ {0, 1, HSMP_GET}, /* * HSMP_GET_IOLINK_BANDWITH, num_args = 1, response_sz = 1 * input: args[0] = link id[15:8] + bw type[2:0] * output: args[0] = io bandwidth in Mbps[31:0] */ {1, 1, HSMP_GET}, /* * HSMP_GET_XGMI_BANDWITH, num_args = 1, response_sz = 1 * input: args[0] = link id[15:8] + bw type[2:0] * output: args[0] = xgmi bandwidth in Mbps[31:0] */ {1, 1, HSMP_GET}, /* * HSMP_SET_GMI3_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_PCI_RATE, num_args = 1, response_sz = 1 * input: args[0] = link rate control value * output: args[0] = previous link rate control value */ {1, 1, HSMP_SET}, /* * HSMP_SET_POWER_MODE, num_args = 1, response_sz = 0 * input: args[0] = power efficiency mode[2:0] */ {1, 0, HSMP_SET}, /* * HSMP_SET_PSTATE_MAX_MIN, num_args = 1, response_sz = 0 * input: args[0] = min df pstate[15:8] + max df pstate[7:0] */ {1, 0, HSMP_SET}, }; /* 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_*/