1054 lines
29 KiB
C
1054 lines
29 KiB
C
/*
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* Intel SOC Telemetry debugfs Driver: Currently supports APL
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* Copyright (c) 2015, Intel Corporation.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* This file provides the debugfs interfaces for telemetry.
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* /sys/kernel/debug/telemetry/pss_info: Shows Primary Control Sub-Sys Counters
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* /sys/kernel/debug/telemetry/ioss_info: Shows IO Sub-System Counters
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* /sys/kernel/debug/telemetry/soc_states: Shows SoC State
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* /sys/kernel/debug/telemetry/pss_trace_verbosity: Read and Change Tracing
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* Verbosity via firmware
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* /sys/kernel/debug/telemetry/ioss_race_verbosity: Write and Change Tracing
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* Verbosity via firmware
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*/
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#include <linux/debugfs.h>
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#include <linux/device.h>
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#include <linux/io.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/seq_file.h>
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#include <linux/suspend.h>
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#include <asm/cpu_device_id.h>
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#include <asm/intel-family.h>
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#include <asm/intel_pmc_ipc.h>
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#include <asm/intel_punit_ipc.h>
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#include <asm/intel_telemetry.h>
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#define DRIVER_NAME "telemetry_soc_debugfs"
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#define DRIVER_VERSION "1.0.0"
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/* ApolloLake SoC Event-IDs */
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#define TELEM_APL_PSS_PSTATES_ID 0x2802
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#define TELEM_APL_PSS_IDLE_ID 0x2806
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#define TELEM_APL_PCS_IDLE_BLOCKED_ID 0x2C00
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#define TELEM_APL_PCS_S0IX_BLOCKED_ID 0x2C01
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#define TELEM_APL_PSS_WAKEUP_ID 0x2C02
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#define TELEM_APL_PSS_LTR_BLOCKING_ID 0x2C03
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#define TELEM_APL_S0IX_TOTAL_OCC_ID 0x4000
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#define TELEM_APL_S0IX_SHLW_OCC_ID 0x4001
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#define TELEM_APL_S0IX_DEEP_OCC_ID 0x4002
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#define TELEM_APL_S0IX_TOTAL_RES_ID 0x4800
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#define TELEM_APL_S0IX_SHLW_RES_ID 0x4801
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#define TELEM_APL_S0IX_DEEP_RES_ID 0x4802
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#define TELEM_APL_D0IX_ID 0x581A
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#define TELEM_APL_D3_ID 0x5819
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#define TELEM_APL_PG_ID 0x5818
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#define TELEM_INFO_SRAMEVTS_MASK 0xFF00
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#define TELEM_INFO_SRAMEVTS_SHIFT 0x8
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#define TELEM_SSRAM_READ_TIMEOUT 10
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#define TELEM_MASK_BIT 1
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#define TELEM_MASK_BYTE 0xFF
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#define BYTES_PER_LONG 8
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#define TELEM_APL_MASK_PCS_STATE 0xF
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/* Max events in bitmap to check for */
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#define TELEM_PSS_IDLE_EVTS 25
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#define TELEM_PSS_IDLE_BLOCKED_EVTS 20
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#define TELEM_PSS_S0IX_BLOCKED_EVTS 20
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#define TELEM_PSS_S0IX_WAKEUP_EVTS 20
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#define TELEM_PSS_LTR_BLOCKING_EVTS 20
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#define TELEM_IOSS_DX_D0IX_EVTS 25
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#define TELEM_IOSS_PG_EVTS 30
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#define TELEM_DEBUGFS_CPU(model, data) \
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{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&data}
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#define TELEM_CHECK_AND_PARSE_EVTS(EVTID, EVTNUM, BUF, EVTLOG, EVTDAT, MASK) { \
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if (evtlog[index].telem_evtid == (EVTID)) { \
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for (idx = 0; idx < (EVTNUM); idx++) \
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(BUF)[idx] = ((EVTLOG) >> (EVTDAT)[idx].bit_pos) & \
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(MASK); \
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continue; \
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} \
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}
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#define TELEM_CHECK_AND_PARSE_CTRS(EVTID, CTR) { \
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if (evtlog[index].telem_evtid == (EVTID)) { \
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(CTR) = evtlog[index].telem_evtlog; \
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continue; \
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} \
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}
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static u8 suspend_prep_ok;
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static u32 suspend_shlw_ctr_temp, suspend_deep_ctr_temp;
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static u64 suspend_shlw_res_temp, suspend_deep_res_temp;
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struct telemetry_susp_stats {
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u32 shlw_swake_ctr;
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u32 deep_swake_ctr;
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u64 shlw_swake_res;
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u64 deep_swake_res;
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u32 shlw_ctr;
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u32 deep_ctr;
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u64 shlw_res;
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u64 deep_res;
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};
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/* Bitmap definitions for default counters in APL */
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struct telem_pss_idle_stateinfo {
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const char *name;
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u32 bit_pos;
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};
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static struct telem_pss_idle_stateinfo telem_apl_pss_idle_data[] = {
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{"IA_CORE0_C1E", 0},
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{"IA_CORE1_C1E", 1},
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{"IA_CORE2_C1E", 2},
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{"IA_CORE3_C1E", 3},
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{"IA_CORE0_C6", 16},
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{"IA_CORE1_C6", 17},
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{"IA_CORE2_C6", 18},
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{"IA_CORE3_C6", 19},
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{"IA_MODULE0_C7", 32},
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{"IA_MODULE1_C7", 33},
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{"GT_RC6", 40},
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{"IUNIT_PROCESSING_IDLE", 41},
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{"FAR_MEM_IDLE", 43},
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{"DISPLAY_IDLE", 44},
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{"IUNIT_INPUT_SYSTEM_IDLE", 45},
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{"PCS_STATUS", 60},
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};
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struct telem_pcs_blkd_info {
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const char *name;
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u32 bit_pos;
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};
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static struct telem_pcs_blkd_info telem_apl_pcs_idle_blkd_data[] = {
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{"COMPUTE", 0},
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{"MISC", 8},
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{"MODULE_ACTIONS_PENDING", 16},
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{"LTR", 24},
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{"DISPLAY_WAKE", 32},
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{"ISP_WAKE", 40},
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{"PSF0_ACTIVE", 48},
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};
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static struct telem_pcs_blkd_info telem_apl_pcs_s0ix_blkd_data[] = {
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{"LTR", 0},
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{"IRTL", 8},
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{"WAKE_DEADLINE_PENDING", 16},
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{"DISPLAY", 24},
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{"ISP", 32},
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{"CORE", 40},
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{"PMC", 48},
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{"MISC", 56},
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};
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struct telem_pss_ltr_info {
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const char *name;
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u32 bit_pos;
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};
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static struct telem_pss_ltr_info telem_apl_pss_ltr_data[] = {
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{"CORE_ACTIVE", 0},
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{"MEM_UP", 8},
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{"DFX", 16},
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{"DFX_FORCE_LTR", 24},
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{"DISPLAY", 32},
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{"ISP", 40},
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{"SOUTH", 48},
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};
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struct telem_pss_wakeup_info {
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const char *name;
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u32 bit_pos;
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};
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static struct telem_pss_wakeup_info telem_apl_pss_wakeup[] = {
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{"IP_IDLE", 0},
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{"DISPLAY_WAKE", 8},
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{"VOLTAGE_REG_INT", 16},
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{"DROWSY_TIMER (HOTPLUG)", 24},
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{"CORE_WAKE", 32},
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{"MISC_S0IX", 40},
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{"MISC_ABORT", 56},
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};
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struct telem_ioss_d0ix_stateinfo {
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const char *name;
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u32 bit_pos;
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};
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static struct telem_ioss_d0ix_stateinfo telem_apl_ioss_d0ix_data[] = {
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{"CSE", 0},
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{"SCC2", 1},
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{"GMM", 2},
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{"XDCI", 3},
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{"XHCI", 4},
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{"ISH", 5},
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{"AVS", 6},
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{"PCIE0P1", 7},
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{"PECI0P0", 8},
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{"LPSS", 9},
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{"SCC", 10},
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{"PWM", 11},
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{"PCIE1_P3", 12},
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{"PCIE1_P2", 13},
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{"PCIE1_P1", 14},
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{"PCIE1_P0", 15},
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{"CNV", 16},
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{"SATA", 17},
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{"PRTC", 18},
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};
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struct telem_ioss_pg_info {
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const char *name;
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u32 bit_pos;
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};
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static struct telem_ioss_pg_info telem_apl_ioss_pg_data[] = {
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{"LPSS", 0},
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{"SCC", 1},
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{"P2SB", 2},
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{"SCC2", 3},
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{"GMM", 4},
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{"PCIE0", 5},
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{"XDCI", 6},
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{"xHCI", 7},
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{"CSE", 8},
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{"SPI", 9},
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{"AVSPGD4", 10},
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{"AVSPGD3", 11},
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{"AVSPGD2", 12},
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{"AVSPGD1", 13},
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{"ISH", 14},
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{"EXI", 15},
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{"NPKVRC", 16},
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{"NPKVNN", 17},
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{"CUNIT", 18},
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{"FUSE_CTRL", 19},
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{"PCIE1", 20},
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{"CNV", 21},
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{"LPC", 22},
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{"SATA", 23},
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{"SMB", 24},
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{"PRTC", 25},
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};
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struct telemetry_debugfs_conf {
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struct telemetry_susp_stats suspend_stats;
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struct dentry *telemetry_dbg_dir;
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/* Bitmap Data */
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struct telem_ioss_d0ix_stateinfo *ioss_d0ix_data;
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struct telem_pss_idle_stateinfo *pss_idle_data;
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struct telem_pcs_blkd_info *pcs_idle_blkd_data;
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struct telem_pcs_blkd_info *pcs_s0ix_blkd_data;
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struct telem_pss_wakeup_info *pss_wakeup;
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struct telem_pss_ltr_info *pss_ltr_data;
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struct telem_ioss_pg_info *ioss_pg_data;
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u8 pcs_idle_blkd_evts;
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u8 pcs_s0ix_blkd_evts;
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u8 pss_wakeup_evts;
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u8 pss_idle_evts;
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u8 pss_ltr_evts;
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u8 ioss_d0ix_evts;
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u8 ioss_pg_evts;
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/* IDs */
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u16 pss_ltr_blocking_id;
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u16 pcs_idle_blkd_id;
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u16 pcs_s0ix_blkd_id;
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u16 s0ix_total_occ_id;
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u16 s0ix_shlw_occ_id;
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u16 s0ix_deep_occ_id;
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u16 s0ix_total_res_id;
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u16 s0ix_shlw_res_id;
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u16 s0ix_deep_res_id;
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u16 pss_wakeup_id;
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u16 ioss_d0ix_id;
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u16 pstates_id;
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u16 pss_idle_id;
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u16 ioss_d3_id;
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u16 ioss_pg_id;
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};
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static struct telemetry_debugfs_conf *debugfs_conf;
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static struct telemetry_debugfs_conf telem_apl_debugfs_conf = {
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.pss_idle_data = telem_apl_pss_idle_data,
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.pcs_idle_blkd_data = telem_apl_pcs_idle_blkd_data,
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.pcs_s0ix_blkd_data = telem_apl_pcs_s0ix_blkd_data,
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.pss_ltr_data = telem_apl_pss_ltr_data,
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.pss_wakeup = telem_apl_pss_wakeup,
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.ioss_d0ix_data = telem_apl_ioss_d0ix_data,
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.ioss_pg_data = telem_apl_ioss_pg_data,
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.pss_idle_evts = ARRAY_SIZE(telem_apl_pss_idle_data),
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.pcs_idle_blkd_evts = ARRAY_SIZE(telem_apl_pcs_idle_blkd_data),
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.pcs_s0ix_blkd_evts = ARRAY_SIZE(telem_apl_pcs_s0ix_blkd_data),
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.pss_ltr_evts = ARRAY_SIZE(telem_apl_pss_ltr_data),
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.pss_wakeup_evts = ARRAY_SIZE(telem_apl_pss_wakeup),
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.ioss_d0ix_evts = ARRAY_SIZE(telem_apl_ioss_d0ix_data),
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.ioss_pg_evts = ARRAY_SIZE(telem_apl_ioss_pg_data),
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.pstates_id = TELEM_APL_PSS_PSTATES_ID,
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.pss_idle_id = TELEM_APL_PSS_IDLE_ID,
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.pcs_idle_blkd_id = TELEM_APL_PCS_IDLE_BLOCKED_ID,
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.pcs_s0ix_blkd_id = TELEM_APL_PCS_S0IX_BLOCKED_ID,
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.pss_wakeup_id = TELEM_APL_PSS_WAKEUP_ID,
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.pss_ltr_blocking_id = TELEM_APL_PSS_LTR_BLOCKING_ID,
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.s0ix_total_occ_id = TELEM_APL_S0IX_TOTAL_OCC_ID,
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.s0ix_shlw_occ_id = TELEM_APL_S0IX_SHLW_OCC_ID,
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.s0ix_deep_occ_id = TELEM_APL_S0IX_DEEP_OCC_ID,
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.s0ix_total_res_id = TELEM_APL_S0IX_TOTAL_RES_ID,
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.s0ix_shlw_res_id = TELEM_APL_S0IX_SHLW_RES_ID,
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.s0ix_deep_res_id = TELEM_APL_S0IX_DEEP_RES_ID,
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.ioss_d0ix_id = TELEM_APL_D0IX_ID,
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.ioss_d3_id = TELEM_APL_D3_ID,
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.ioss_pg_id = TELEM_APL_PG_ID,
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};
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static const struct x86_cpu_id telemetry_debugfs_cpu_ids[] = {
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TELEM_DEBUGFS_CPU(INTEL_FAM6_ATOM_GOLDMONT, telem_apl_debugfs_conf),
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TELEM_DEBUGFS_CPU(INTEL_FAM6_ATOM_GEMINI_LAKE, telem_apl_debugfs_conf),
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{}
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};
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MODULE_DEVICE_TABLE(x86cpu, telemetry_debugfs_cpu_ids);
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static int telemetry_debugfs_check_evts(void)
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{
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if ((debugfs_conf->pss_idle_evts > TELEM_PSS_IDLE_EVTS) ||
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(debugfs_conf->pcs_idle_blkd_evts > TELEM_PSS_IDLE_BLOCKED_EVTS) ||
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(debugfs_conf->pcs_s0ix_blkd_evts > TELEM_PSS_S0IX_BLOCKED_EVTS) ||
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(debugfs_conf->pss_ltr_evts > TELEM_PSS_LTR_BLOCKING_EVTS) ||
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(debugfs_conf->pss_wakeup_evts > TELEM_PSS_S0IX_WAKEUP_EVTS) ||
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(debugfs_conf->ioss_d0ix_evts > TELEM_IOSS_DX_D0IX_EVTS) ||
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(debugfs_conf->ioss_pg_evts > TELEM_IOSS_PG_EVTS))
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return -EINVAL;
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return 0;
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}
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static int telem_pss_states_show(struct seq_file *s, void *unused)
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{
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struct telemetry_evtlog evtlog[TELEM_MAX_OS_ALLOCATED_EVENTS];
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struct telemetry_debugfs_conf *conf = debugfs_conf;
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const char *name[TELEM_MAX_OS_ALLOCATED_EVENTS];
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u32 pcs_idle_blkd[TELEM_PSS_IDLE_BLOCKED_EVTS],
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pcs_s0ix_blkd[TELEM_PSS_S0IX_BLOCKED_EVTS],
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pss_s0ix_wakeup[TELEM_PSS_S0IX_WAKEUP_EVTS],
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pss_ltr_blkd[TELEM_PSS_LTR_BLOCKING_EVTS],
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pss_idle[TELEM_PSS_IDLE_EVTS];
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int index, idx, ret, err = 0;
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u64 pstates = 0;
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ret = telemetry_read_eventlog(TELEM_PSS, evtlog,
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TELEM_MAX_OS_ALLOCATED_EVENTS);
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if (ret < 0)
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return ret;
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err = telemetry_get_evtname(TELEM_PSS, name,
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TELEM_MAX_OS_ALLOCATED_EVENTS);
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if (err < 0)
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return err;
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seq_puts(s, "\n----------------------------------------------------\n");
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seq_puts(s, "\tPSS TELEM EVENTLOG (Residency = field/19.2 us\n");
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seq_puts(s, "----------------------------------------------------\n");
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for (index = 0; index < ret; index++) {
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seq_printf(s, "%-32s %llu\n",
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name[index], evtlog[index].telem_evtlog);
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/* Fetch PSS IDLE State */
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if (evtlog[index].telem_evtid == conf->pss_idle_id) {
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pss_idle[conf->pss_idle_evts - 1] =
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(evtlog[index].telem_evtlog >>
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conf->pss_idle_data[conf->pss_idle_evts - 1].bit_pos) &
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TELEM_APL_MASK_PCS_STATE;
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}
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TELEM_CHECK_AND_PARSE_EVTS(conf->pss_idle_id,
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conf->pss_idle_evts - 1,
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pss_idle, evtlog[index].telem_evtlog,
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conf->pss_idle_data, TELEM_MASK_BIT);
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TELEM_CHECK_AND_PARSE_EVTS(conf->pcs_idle_blkd_id,
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conf->pcs_idle_blkd_evts,
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pcs_idle_blkd,
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evtlog[index].telem_evtlog,
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conf->pcs_idle_blkd_data,
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TELEM_MASK_BYTE);
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TELEM_CHECK_AND_PARSE_EVTS(conf->pcs_s0ix_blkd_id,
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conf->pcs_s0ix_blkd_evts,
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pcs_s0ix_blkd,
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evtlog[index].telem_evtlog,
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conf->pcs_s0ix_blkd_data,
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TELEM_MASK_BYTE);
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TELEM_CHECK_AND_PARSE_EVTS(conf->pss_wakeup_id,
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conf->pss_wakeup_evts,
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pss_s0ix_wakeup,
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evtlog[index].telem_evtlog,
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conf->pss_wakeup, TELEM_MASK_BYTE);
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TELEM_CHECK_AND_PARSE_EVTS(conf->pss_ltr_blocking_id,
|
|
conf->pss_ltr_evts, pss_ltr_blkd,
|
|
evtlog[index].telem_evtlog,
|
|
conf->pss_ltr_data, TELEM_MASK_BYTE);
|
|
|
|
if (evtlog[index].telem_evtid == debugfs_conf->pstates_id)
|
|
pstates = evtlog[index].telem_evtlog;
|
|
}
|
|
|
|
seq_puts(s, "\n--------------------------------------\n");
|
|
seq_puts(s, "PStates\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "Domain\t\t\t\tFreq(Mhz)\n");
|
|
seq_printf(s, " IA\t\t\t\t %llu\n GT\t\t\t\t %llu\n",
|
|
(pstates & TELEM_MASK_BYTE)*100,
|
|
((pstates >> 8) & TELEM_MASK_BYTE)*50/3);
|
|
|
|
seq_printf(s, " IUNIT\t\t\t\t %llu\n SA\t\t\t\t %llu\n",
|
|
((pstates >> 16) & TELEM_MASK_BYTE)*25,
|
|
((pstates >> 24) & TELEM_MASK_BYTE)*50/3);
|
|
|
|
seq_puts(s, "\n--------------------------------------\n");
|
|
seq_puts(s, "PSS IDLE Status\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "Device\t\t\t\t\tIDLE\n");
|
|
for (index = 0; index < debugfs_conf->pss_idle_evts; index++) {
|
|
seq_printf(s, "%-32s\t%u\n",
|
|
debugfs_conf->pss_idle_data[index].name,
|
|
pss_idle[index]);
|
|
}
|
|
|
|
seq_puts(s, "\n--------------------------------------\n");
|
|
seq_puts(s, "PSS Idle blkd Status (~1ms saturating bucket)\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "Blocker\t\t\t\t\tCount\n");
|
|
for (index = 0; index < debugfs_conf->pcs_idle_blkd_evts; index++) {
|
|
seq_printf(s, "%-32s\t%u\n",
|
|
debugfs_conf->pcs_idle_blkd_data[index].name,
|
|
pcs_idle_blkd[index]);
|
|
}
|
|
|
|
seq_puts(s, "\n--------------------------------------\n");
|
|
seq_puts(s, "PSS S0ix blkd Status (~1ms saturating bucket)\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "Blocker\t\t\t\t\tCount\n");
|
|
for (index = 0; index < debugfs_conf->pcs_s0ix_blkd_evts; index++) {
|
|
seq_printf(s, "%-32s\t%u\n",
|
|
debugfs_conf->pcs_s0ix_blkd_data[index].name,
|
|
pcs_s0ix_blkd[index]);
|
|
}
|
|
|
|
seq_puts(s, "\n--------------------------------------\n");
|
|
seq_puts(s, "LTR Blocking Status (~1ms saturating bucket)\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "Blocker\t\t\t\t\tCount\n");
|
|
for (index = 0; index < debugfs_conf->pss_ltr_evts; index++) {
|
|
seq_printf(s, "%-32s\t%u\n",
|
|
debugfs_conf->pss_ltr_data[index].name,
|
|
pss_s0ix_wakeup[index]);
|
|
}
|
|
|
|
seq_puts(s, "\n--------------------------------------\n");
|
|
seq_puts(s, "Wakes Status (~1ms saturating bucket)\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "Wakes\t\t\t\t\tCount\n");
|
|
for (index = 0; index < debugfs_conf->pss_wakeup_evts; index++) {
|
|
seq_printf(s, "%-32s\t%u\n",
|
|
debugfs_conf->pss_wakeup[index].name,
|
|
pss_ltr_blkd[index]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int telem_pss_state_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, telem_pss_states_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations telem_pss_ops = {
|
|
.open = telem_pss_state_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
|
|
static int telem_ioss_states_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct telemetry_evtlog evtlog[TELEM_MAX_OS_ALLOCATED_EVENTS];
|
|
const char *name[TELEM_MAX_OS_ALLOCATED_EVENTS];
|
|
int index, ret, err;
|
|
|
|
ret = telemetry_read_eventlog(TELEM_IOSS, evtlog,
|
|
TELEM_MAX_OS_ALLOCATED_EVENTS);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
err = telemetry_get_evtname(TELEM_IOSS, name,
|
|
TELEM_MAX_OS_ALLOCATED_EVENTS);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "\tI0SS TELEMETRY EVENTLOG\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
for (index = 0; index < ret; index++) {
|
|
seq_printf(s, "%-32s 0x%llx\n",
|
|
name[index], evtlog[index].telem_evtlog);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int telem_ioss_state_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, telem_ioss_states_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations telem_ioss_ops = {
|
|
.open = telem_ioss_state_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int telem_soc_states_show(struct seq_file *s, void *unused)
|
|
{
|
|
u32 d3_sts[TELEM_IOSS_DX_D0IX_EVTS], d0ix_sts[TELEM_IOSS_DX_D0IX_EVTS];
|
|
u32 pg_sts[TELEM_IOSS_PG_EVTS], pss_idle[TELEM_PSS_IDLE_EVTS];
|
|
struct telemetry_evtlog evtlog[TELEM_MAX_OS_ALLOCATED_EVENTS];
|
|
u32 s0ix_total_ctr = 0, s0ix_shlw_ctr = 0, s0ix_deep_ctr = 0;
|
|
u64 s0ix_total_res = 0, s0ix_shlw_res = 0, s0ix_deep_res = 0;
|
|
struct telemetry_debugfs_conf *conf = debugfs_conf;
|
|
struct pci_dev *dev = NULL;
|
|
int index, idx, ret;
|
|
u32 d3_state;
|
|
u16 pmcsr;
|
|
|
|
ret = telemetry_read_eventlog(TELEM_IOSS, evtlog,
|
|
TELEM_MAX_OS_ALLOCATED_EVENTS);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (index = 0; index < ret; index++) {
|
|
TELEM_CHECK_AND_PARSE_EVTS(conf->ioss_d3_id,
|
|
conf->ioss_d0ix_evts,
|
|
d3_sts, evtlog[index].telem_evtlog,
|
|
conf->ioss_d0ix_data,
|
|
TELEM_MASK_BIT);
|
|
|
|
TELEM_CHECK_AND_PARSE_EVTS(conf->ioss_pg_id, conf->ioss_pg_evts,
|
|
pg_sts, evtlog[index].telem_evtlog,
|
|
conf->ioss_pg_data, TELEM_MASK_BIT);
|
|
|
|
TELEM_CHECK_AND_PARSE_EVTS(conf->ioss_d0ix_id,
|
|
conf->ioss_d0ix_evts,
|
|
d0ix_sts, evtlog[index].telem_evtlog,
|
|
conf->ioss_d0ix_data,
|
|
TELEM_MASK_BIT);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_total_occ_id,
|
|
s0ix_total_ctr);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_shlw_occ_id,
|
|
s0ix_shlw_ctr);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_deep_occ_id,
|
|
s0ix_deep_ctr);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_total_res_id,
|
|
s0ix_total_res);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_shlw_res_id,
|
|
s0ix_shlw_res);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_deep_res_id,
|
|
s0ix_deep_res);
|
|
}
|
|
|
|
seq_puts(s, "\n---------------------------------------------------\n");
|
|
seq_puts(s, "S0IX Type\t\t\t Occurrence\t\t Residency(us)\n");
|
|
seq_puts(s, "---------------------------------------------------\n");
|
|
|
|
seq_printf(s, "S0IX Shallow\t\t\t %10u\t %10llu\n",
|
|
s0ix_shlw_ctr -
|
|
conf->suspend_stats.shlw_ctr -
|
|
conf->suspend_stats.shlw_swake_ctr,
|
|
(u64)((s0ix_shlw_res -
|
|
conf->suspend_stats.shlw_res -
|
|
conf->suspend_stats.shlw_swake_res)*10/192));
|
|
|
|
seq_printf(s, "S0IX Deep\t\t\t %10u\t %10llu\n",
|
|
s0ix_deep_ctr -
|
|
conf->suspend_stats.deep_ctr -
|
|
conf->suspend_stats.deep_swake_ctr,
|
|
(u64)((s0ix_deep_res -
|
|
conf->suspend_stats.deep_res -
|
|
conf->suspend_stats.deep_swake_res)*10/192));
|
|
|
|
seq_printf(s, "Suspend(With S0ixShallow)\t %10u\t %10llu\n",
|
|
conf->suspend_stats.shlw_ctr,
|
|
(u64)(conf->suspend_stats.shlw_res*10)/192);
|
|
|
|
seq_printf(s, "Suspend(With S0ixDeep)\t\t %10u\t %10llu\n",
|
|
conf->suspend_stats.deep_ctr,
|
|
(u64)(conf->suspend_stats.deep_res*10)/192);
|
|
|
|
seq_printf(s, "Suspend(With Shallow-Wakes)\t %10u\t %10llu\n",
|
|
conf->suspend_stats.shlw_swake_ctr +
|
|
conf->suspend_stats.deep_swake_ctr,
|
|
(u64)((conf->suspend_stats.shlw_swake_res +
|
|
conf->suspend_stats.deep_swake_res)*10/192));
|
|
|
|
seq_printf(s, "S0IX+Suspend Total\t\t %10u\t %10llu\n", s0ix_total_ctr,
|
|
(u64)(s0ix_total_res*10/192));
|
|
seq_puts(s, "\n-------------------------------------------------\n");
|
|
seq_puts(s, "\t\tDEVICE STATES\n");
|
|
seq_puts(s, "-------------------------------------------------\n");
|
|
|
|
for_each_pci_dev(dev) {
|
|
pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
|
|
d3_state = ((pmcsr & PCI_PM_CTRL_STATE_MASK) ==
|
|
(__force int)PCI_D3hot) ? 1 : 0;
|
|
|
|
seq_printf(s, "pci %04x %04X %s %20.20s: ",
|
|
dev->vendor, dev->device, dev_name(&dev->dev),
|
|
dev_driver_string(&dev->dev));
|
|
seq_printf(s, " d3:%x\n", d3_state);
|
|
}
|
|
|
|
seq_puts(s, "\n--------------------------------------\n");
|
|
seq_puts(s, "D3/D0i3 Status\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "Block\t\t D3\t D0i3\n");
|
|
for (index = 0; index < conf->ioss_d0ix_evts; index++) {
|
|
seq_printf(s, "%-10s\t %u\t %u\n",
|
|
conf->ioss_d0ix_data[index].name,
|
|
d3_sts[index], d0ix_sts[index]);
|
|
}
|
|
|
|
seq_puts(s, "\n--------------------------------------\n");
|
|
seq_puts(s, "South Complex PowerGate Status\n");
|
|
seq_puts(s, "--------------------------------------\n");
|
|
seq_puts(s, "Device\t\t PG\n");
|
|
for (index = 0; index < conf->ioss_pg_evts; index++) {
|
|
seq_printf(s, "%-10s\t %u\n",
|
|
conf->ioss_pg_data[index].name,
|
|
pg_sts[index]);
|
|
}
|
|
|
|
evtlog->telem_evtid = conf->pss_idle_id;
|
|
ret = telemetry_read_events(TELEM_PSS, evtlog, 1);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
seq_puts(s, "\n-----------------------------------------\n");
|
|
seq_puts(s, "North Idle Status\n");
|
|
seq_puts(s, "-----------------------------------------\n");
|
|
for (idx = 0; idx < conf->pss_idle_evts - 1; idx++) {
|
|
pss_idle[idx] = (evtlog->telem_evtlog >>
|
|
conf->pss_idle_data[idx].bit_pos) &
|
|
TELEM_MASK_BIT;
|
|
}
|
|
|
|
pss_idle[idx] = (evtlog->telem_evtlog >>
|
|
conf->pss_idle_data[idx].bit_pos) &
|
|
TELEM_APL_MASK_PCS_STATE;
|
|
|
|
for (index = 0; index < conf->pss_idle_evts; index++) {
|
|
seq_printf(s, "%-30s %u\n",
|
|
conf->pss_idle_data[index].name,
|
|
pss_idle[index]);
|
|
}
|
|
|
|
seq_puts(s, "\nPCS_STATUS Code\n");
|
|
seq_puts(s, "0:C0 1:C1 2:C1_DN_WT_DEV 3:C2 4:C2_WT_DE_MEM_UP\n");
|
|
seq_puts(s, "5:C2_WT_DE_MEM_DOWN 6:C2_UP_WT_DEV 7:C2_DN 8:C2_VOA\n");
|
|
seq_puts(s, "9:C2_VOA_UP 10:S0IX_PRE 11:S0IX\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int telem_soc_state_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, telem_soc_states_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations telem_socstate_ops = {
|
|
.open = telem_soc_state_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int telem_s0ix_res_get(void *data, u64 *val)
|
|
{
|
|
u64 s0ix_total_res;
|
|
int ret;
|
|
|
|
ret = intel_pmc_s0ix_counter_read(&s0ix_total_res);
|
|
if (ret) {
|
|
pr_err("Failed to read S0ix residency");
|
|
return ret;
|
|
}
|
|
|
|
*val = s0ix_total_res;
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_DEBUGFS_ATTRIBUTE(telem_s0ix_fops, telem_s0ix_res_get, NULL, "%llu\n");
|
|
|
|
static int telem_pss_trc_verb_show(struct seq_file *s, void *unused)
|
|
{
|
|
u32 verbosity;
|
|
int err;
|
|
|
|
err = telemetry_get_trace_verbosity(TELEM_PSS, &verbosity);
|
|
if (err) {
|
|
pr_err("Get PSS Trace Verbosity Failed with Error %d\n", err);
|
|
return -EFAULT;
|
|
}
|
|
|
|
seq_printf(s, "PSS Trace Verbosity %u\n", verbosity);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t telem_pss_trc_verb_write(struct file *file,
|
|
const char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
u32 verbosity;
|
|
int err;
|
|
|
|
if (kstrtou32_from_user(userbuf, count, 0, &verbosity))
|
|
return -EFAULT;
|
|
|
|
err = telemetry_set_trace_verbosity(TELEM_PSS, verbosity);
|
|
if (err) {
|
|
pr_err("Changing PSS Trace Verbosity Failed. Error %d\n", err);
|
|
count = err;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static int telem_pss_trc_verb_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, telem_pss_trc_verb_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations telem_pss_trc_verb_ops = {
|
|
.open = telem_pss_trc_verb_open,
|
|
.read = seq_read,
|
|
.write = telem_pss_trc_verb_write,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
|
|
static int telem_ioss_trc_verb_show(struct seq_file *s, void *unused)
|
|
{
|
|
u32 verbosity;
|
|
int err;
|
|
|
|
err = telemetry_get_trace_verbosity(TELEM_IOSS, &verbosity);
|
|
if (err) {
|
|
pr_err("Get IOSS Trace Verbosity Failed with Error %d\n", err);
|
|
return -EFAULT;
|
|
}
|
|
|
|
seq_printf(s, "IOSS Trace Verbosity %u\n", verbosity);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t telem_ioss_trc_verb_write(struct file *file,
|
|
const char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
u32 verbosity;
|
|
int err;
|
|
|
|
if (kstrtou32_from_user(userbuf, count, 0, &verbosity))
|
|
return -EFAULT;
|
|
|
|
err = telemetry_set_trace_verbosity(TELEM_IOSS, verbosity);
|
|
if (err) {
|
|
pr_err("Changing IOSS Trace Verbosity Failed. Error %d\n", err);
|
|
count = err;
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static int telem_ioss_trc_verb_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, telem_ioss_trc_verb_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations telem_ioss_trc_verb_ops = {
|
|
.open = telem_ioss_trc_verb_open,
|
|
.read = seq_read,
|
|
.write = telem_ioss_trc_verb_write,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
static int pm_suspend_prep_cb(void)
|
|
{
|
|
struct telemetry_evtlog evtlog[TELEM_MAX_OS_ALLOCATED_EVENTS];
|
|
struct telemetry_debugfs_conf *conf = debugfs_conf;
|
|
int ret, index;
|
|
|
|
ret = telemetry_raw_read_eventlog(TELEM_IOSS, evtlog,
|
|
TELEM_MAX_OS_ALLOCATED_EVENTS);
|
|
if (ret < 0) {
|
|
suspend_prep_ok = 0;
|
|
goto out;
|
|
}
|
|
|
|
for (index = 0; index < ret; index++) {
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_shlw_occ_id,
|
|
suspend_shlw_ctr_temp);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_deep_occ_id,
|
|
suspend_deep_ctr_temp);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_shlw_res_id,
|
|
suspend_shlw_res_temp);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_deep_res_id,
|
|
suspend_deep_res_temp);
|
|
}
|
|
suspend_prep_ok = 1;
|
|
out:
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
static int pm_suspend_exit_cb(void)
|
|
{
|
|
struct telemetry_evtlog evtlog[TELEM_MAX_OS_ALLOCATED_EVENTS];
|
|
static u32 suspend_shlw_ctr_exit, suspend_deep_ctr_exit;
|
|
static u64 suspend_shlw_res_exit, suspend_deep_res_exit;
|
|
struct telemetry_debugfs_conf *conf = debugfs_conf;
|
|
int ret, index;
|
|
|
|
if (!suspend_prep_ok)
|
|
goto out;
|
|
|
|
ret = telemetry_raw_read_eventlog(TELEM_IOSS, evtlog,
|
|
TELEM_MAX_OS_ALLOCATED_EVENTS);
|
|
if (ret < 0)
|
|
goto out;
|
|
|
|
for (index = 0; index < ret; index++) {
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_shlw_occ_id,
|
|
suspend_shlw_ctr_exit);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_deep_occ_id,
|
|
suspend_deep_ctr_exit);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_shlw_res_id,
|
|
suspend_shlw_res_exit);
|
|
|
|
TELEM_CHECK_AND_PARSE_CTRS(conf->s0ix_deep_res_id,
|
|
suspend_deep_res_exit);
|
|
}
|
|
|
|
if ((suspend_shlw_ctr_exit < suspend_shlw_ctr_temp) ||
|
|
(suspend_deep_ctr_exit < suspend_deep_ctr_temp) ||
|
|
(suspend_shlw_res_exit < suspend_shlw_res_temp) ||
|
|
(suspend_deep_res_exit < suspend_deep_res_temp)) {
|
|
pr_err("Wrong s0ix counters detected\n");
|
|
goto out;
|
|
}
|
|
|
|
suspend_shlw_ctr_exit -= suspend_shlw_ctr_temp;
|
|
suspend_deep_ctr_exit -= suspend_deep_ctr_temp;
|
|
suspend_shlw_res_exit -= suspend_shlw_res_temp;
|
|
suspend_deep_res_exit -= suspend_deep_res_temp;
|
|
|
|
if (suspend_shlw_ctr_exit == 1) {
|
|
conf->suspend_stats.shlw_ctr +=
|
|
suspend_shlw_ctr_exit;
|
|
|
|
conf->suspend_stats.shlw_res +=
|
|
suspend_shlw_res_exit;
|
|
}
|
|
/* Shallow Wakes Case */
|
|
else if (suspend_shlw_ctr_exit > 1) {
|
|
conf->suspend_stats.shlw_swake_ctr +=
|
|
suspend_shlw_ctr_exit;
|
|
|
|
conf->suspend_stats.shlw_swake_res +=
|
|
suspend_shlw_res_exit;
|
|
}
|
|
|
|
if (suspend_deep_ctr_exit == 1) {
|
|
conf->suspend_stats.deep_ctr +=
|
|
suspend_deep_ctr_exit;
|
|
|
|
conf->suspend_stats.deep_res +=
|
|
suspend_deep_res_exit;
|
|
}
|
|
|
|
/* Shallow Wakes Case */
|
|
else if (suspend_deep_ctr_exit > 1) {
|
|
conf->suspend_stats.deep_swake_ctr +=
|
|
suspend_deep_ctr_exit;
|
|
|
|
conf->suspend_stats.deep_swake_res +=
|
|
suspend_deep_res_exit;
|
|
}
|
|
|
|
out:
|
|
suspend_prep_ok = 0;
|
|
return NOTIFY_OK;
|
|
}
|
|
|
|
static int pm_notification(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
switch (event) {
|
|
case PM_SUSPEND_PREPARE:
|
|
return pm_suspend_prep_cb();
|
|
case PM_POST_SUSPEND:
|
|
return pm_suspend_exit_cb();
|
|
}
|
|
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block pm_notifier = {
|
|
.notifier_call = pm_notification,
|
|
};
|
|
|
|
static int __init telemetry_debugfs_init(void)
|
|
{
|
|
const struct x86_cpu_id *id;
|
|
int err;
|
|
struct dentry *f;
|
|
|
|
/* Only APL supported for now */
|
|
id = x86_match_cpu(telemetry_debugfs_cpu_ids);
|
|
if (!id)
|
|
return -ENODEV;
|
|
|
|
debugfs_conf = (struct telemetry_debugfs_conf *)id->driver_data;
|
|
|
|
err = telemetry_pltconfig_valid();
|
|
if (err < 0)
|
|
return -ENODEV;
|
|
|
|
err = telemetry_debugfs_check_evts();
|
|
if (err < 0)
|
|
return -EINVAL;
|
|
|
|
register_pm_notifier(&pm_notifier);
|
|
|
|
err = -ENOMEM;
|
|
debugfs_conf->telemetry_dbg_dir = debugfs_create_dir("telemetry", NULL);
|
|
if (!debugfs_conf->telemetry_dbg_dir)
|
|
goto out_pm;
|
|
|
|
f = debugfs_create_file("pss_info", S_IFREG | S_IRUGO,
|
|
debugfs_conf->telemetry_dbg_dir, NULL,
|
|
&telem_pss_ops);
|
|
if (!f) {
|
|
pr_err("pss_sample_info debugfs register failed\n");
|
|
goto out;
|
|
}
|
|
|
|
f = debugfs_create_file("ioss_info", S_IFREG | S_IRUGO,
|
|
debugfs_conf->telemetry_dbg_dir, NULL,
|
|
&telem_ioss_ops);
|
|
if (!f) {
|
|
pr_err("ioss_sample_info debugfs register failed\n");
|
|
goto out;
|
|
}
|
|
|
|
f = debugfs_create_file("soc_states", S_IFREG | S_IRUGO,
|
|
debugfs_conf->telemetry_dbg_dir,
|
|
NULL, &telem_socstate_ops);
|
|
if (!f) {
|
|
pr_err("ioss_sample_info debugfs register failed\n");
|
|
goto out;
|
|
}
|
|
|
|
f = debugfs_create_file("s0ix_residency_usec", S_IFREG | S_IRUGO,
|
|
debugfs_conf->telemetry_dbg_dir,
|
|
NULL, &telem_s0ix_fops);
|
|
if (!f) {
|
|
pr_err("s0ix_residency_usec debugfs register failed\n");
|
|
goto out;
|
|
}
|
|
|
|
f = debugfs_create_file("pss_trace_verbosity", S_IFREG | S_IRUGO,
|
|
debugfs_conf->telemetry_dbg_dir, NULL,
|
|
&telem_pss_trc_verb_ops);
|
|
if (!f) {
|
|
pr_err("pss_trace_verbosity debugfs register failed\n");
|
|
goto out;
|
|
}
|
|
|
|
f = debugfs_create_file("ioss_trace_verbosity", S_IFREG | S_IRUGO,
|
|
debugfs_conf->telemetry_dbg_dir, NULL,
|
|
&telem_ioss_trc_verb_ops);
|
|
if (!f) {
|
|
pr_err("ioss_trace_verbosity debugfs register failed\n");
|
|
goto out;
|
|
}
|
|
|
|
return 0;
|
|
|
|
out:
|
|
debugfs_remove_recursive(debugfs_conf->telemetry_dbg_dir);
|
|
debugfs_conf->telemetry_dbg_dir = NULL;
|
|
out_pm:
|
|
unregister_pm_notifier(&pm_notifier);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __exit telemetry_debugfs_exit(void)
|
|
{
|
|
debugfs_remove_recursive(debugfs_conf->telemetry_dbg_dir);
|
|
debugfs_conf->telemetry_dbg_dir = NULL;
|
|
unregister_pm_notifier(&pm_notifier);
|
|
}
|
|
|
|
late_initcall(telemetry_debugfs_init);
|
|
module_exit(telemetry_debugfs_exit);
|
|
|
|
MODULE_AUTHOR("Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>");
|
|
MODULE_DESCRIPTION("Intel SoC Telemetry debugfs Interface");
|
|
MODULE_VERSION(DRIVER_VERSION);
|
|
MODULE_LICENSE("GPL");
|