diff options
author | Kate Hsuan <hpa@redhat.com> | 2021-08-20 14:04:46 +0300 |
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committer | Hans de Goede <hdegoede@redhat.com> | 2021-08-20 21:08:09 +0300 |
commit | 2b6cb8f2e88b416393d2b34cad51bfe6e1aae8a7 (patch) | |
tree | 07ade762faf9047e2974bfe33b1aa8210de4e825 /drivers/platform/x86/intel_telemetry_debugfs.c | |
parent | fa082a7cf5a66a42a06da048afd972e2cc1b67ea (diff) | |
download | linux-2b6cb8f2e88b416393d2b34cad51bfe6e1aae8a7.tar.xz |
platform/x86: intel_telemetry: Move to intel sub-directory
Move Intel telemetry driver to intel sub-directory to improve readability.
While at it, spell APL fully in the Kconfig.
Signed-off-by: Kate Hsuan <hpa@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com>
Link: https://lore.kernel.org/r/20210820110458.73018-9-andriy.shevchenko@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/intel_telemetry_debugfs.c')
-rw-r--r-- | drivers/platform/x86/intel_telemetry_debugfs.c | 961 |
1 files changed, 0 insertions, 961 deletions
diff --git a/drivers/platform/x86/intel_telemetry_debugfs.c b/drivers/platform/x86/intel_telemetry_debugfs.c deleted file mode 100644 index 1d4d0fbfd63c..000000000000 --- a/drivers/platform/x86/intel_telemetry_debugfs.c +++ /dev/null @@ -1,961 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Intel SOC Telemetry debugfs Driver: Currently supports APL - * Copyright (c) 2015, Intel Corporation. - * All Rights Reserved. - * - * This file provides the debugfs interfaces for telemetry. - * /sys/kernel/debug/telemetry/pss_info: Shows Primary Control Sub-Sys Counters - * /sys/kernel/debug/telemetry/ioss_info: Shows IO Sub-System Counters - * /sys/kernel/debug/telemetry/soc_states: Shows SoC State - * /sys/kernel/debug/telemetry/pss_trace_verbosity: Read and Change Tracing - * Verbosity via firmware - * /sys/kernel/debug/telemetry/ioss_race_verbosity: Write and Change Tracing - * Verbosity via firmware - */ -#include <linux/debugfs.h> -#include <linux/device.h> -#include <linux/mfd/intel_pmc_bxt.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/seq_file.h> -#include <linux/suspend.h> - -#include <asm/cpu_device_id.h> -#include <asm/intel-family.h> -#include <asm/intel_telemetry.h> - -#define DRIVER_NAME "telemetry_soc_debugfs" -#define DRIVER_VERSION "1.0.0" - -/* ApolloLake SoC Event-IDs */ -#define TELEM_APL_PSS_PSTATES_ID 0x2802 -#define TELEM_APL_PSS_IDLE_ID 0x2806 -#define TELEM_APL_PCS_IDLE_BLOCKED_ID 0x2C00 -#define TELEM_APL_PCS_S0IX_BLOCKED_ID 0x2C01 -#define TELEM_APL_PSS_WAKEUP_ID 0x2C02 -#define TELEM_APL_PSS_LTR_BLOCKING_ID 0x2C03 - -#define TELEM_APL_S0IX_TOTAL_OCC_ID 0x4000 -#define TELEM_APL_S0IX_SHLW_OCC_ID 0x4001 -#define TELEM_APL_S0IX_DEEP_OCC_ID 0x4002 -#define TELEM_APL_S0IX_TOTAL_RES_ID 0x4800 -#define TELEM_APL_S0IX_SHLW_RES_ID 0x4801 -#define TELEM_APL_S0IX_DEEP_RES_ID 0x4802 -#define TELEM_APL_D0IX_ID 0x581A -#define TELEM_APL_D3_ID 0x5819 -#define TELEM_APL_PG_ID 0x5818 - -#define TELEM_INFO_SRAMEVTS_MASK 0xFF00 -#define TELEM_INFO_SRAMEVTS_SHIFT 0x8 -#define TELEM_SSRAM_READ_TIMEOUT 10 - -#define TELEM_MASK_BIT 1 -#define TELEM_MASK_BYTE 0xFF -#define BYTES_PER_LONG 8 -#define TELEM_APL_MASK_PCS_STATE 0xF - -/* Max events in bitmap to check for */ -#define TELEM_PSS_IDLE_EVTS 25 -#define TELEM_PSS_IDLE_BLOCKED_EVTS 20 -#define TELEM_PSS_S0IX_BLOCKED_EVTS 20 -#define TELEM_PSS_S0IX_WAKEUP_EVTS 20 -#define TELEM_PSS_LTR_BLOCKING_EVTS 20 -#define TELEM_IOSS_DX_D0IX_EVTS 25 -#define TELEM_IOSS_PG_EVTS 30 - -#define TELEM_CHECK_AND_PARSE_EVTS(EVTID, EVTNUM, BUF, EVTLOG, EVTDAT, MASK) { \ - if (evtlog[index].telem_evtid == (EVTID)) { \ - for (idx = 0; idx < (EVTNUM); idx++) \ - (BUF)[idx] = ((EVTLOG) >> (EVTDAT)[idx].bit_pos) & \ - (MASK); \ - continue; \ - } \ -} - -#define TELEM_CHECK_AND_PARSE_CTRS(EVTID, CTR) { \ - if (evtlog[index].telem_evtid == (EVTID)) { \ - (CTR) = evtlog[index].telem_evtlog; \ - continue; \ - } \ -} - -static u8 suspend_prep_ok; -static u32 suspend_shlw_ctr_temp, suspend_deep_ctr_temp; -static u64 suspend_shlw_res_temp, suspend_deep_res_temp; - -struct telemetry_susp_stats { - u32 shlw_ctr; - u32 deep_ctr; - u64 shlw_res; - u64 deep_res; -}; - -/* Bitmap definitions for default counters in APL */ -struct telem_pss_idle_stateinfo { - const char *name; - u32 bit_pos; -}; - -static struct telem_pss_idle_stateinfo telem_apl_pss_idle_data[] = { - {"IA_CORE0_C1E", 0}, - {"IA_CORE1_C1E", 1}, - {"IA_CORE2_C1E", 2}, - {"IA_CORE3_C1E", 3}, - {"IA_CORE0_C6", 16}, - {"IA_CORE1_C6", 17}, - {"IA_CORE2_C6", 18}, - {"IA_CORE3_C6", 19}, - {"IA_MODULE0_C7", 32}, - {"IA_MODULE1_C7", 33}, - {"GT_RC6", 40}, - {"IUNIT_PROCESSING_IDLE", 41}, - {"FAR_MEM_IDLE", 43}, - {"DISPLAY_IDLE", 44}, - {"IUNIT_INPUT_SYSTEM_IDLE", 45}, - {"PCS_STATUS", 60}, -}; - -struct telem_pcs_blkd_info { - const char *name; - u32 bit_pos; -}; - -static struct telem_pcs_blkd_info telem_apl_pcs_idle_blkd_data[] = { - {"COMPUTE", 0}, - {"MISC", 8}, - {"MODULE_ACTIONS_PENDING", 16}, - {"LTR", 24}, - {"DISPLAY_WAKE", 32}, - {"ISP_WAKE", 40}, - {"PSF0_ACTIVE", 48}, -}; - -static struct telem_pcs_blkd_info telem_apl_pcs_s0ix_blkd_data[] = { - {"LTR", 0}, - {"IRTL", 8}, - {"WAKE_DEADLINE_PENDING", 16}, - {"DISPLAY", 24}, - {"ISP", 32}, - {"CORE", 40}, - {"PMC", 48}, - {"MISC", 56}, -}; - -struct telem_pss_ltr_info { - const char *name; - u32 bit_pos; -}; - -static struct telem_pss_ltr_info telem_apl_pss_ltr_data[] = { - {"CORE_ACTIVE", 0}, - {"MEM_UP", 8}, - {"DFX", 16}, - {"DFX_FORCE_LTR", 24}, - {"DISPLAY", 32}, - {"ISP", 40}, - {"SOUTH", 48}, -}; - -struct telem_pss_wakeup_info { - const char *name; - u32 bit_pos; -}; - -static struct telem_pss_wakeup_info telem_apl_pss_wakeup[] = { - {"IP_IDLE", 0}, - {"DISPLAY_WAKE", 8}, - {"VOLTAGE_REG_INT", 16}, - {"DROWSY_TIMER (HOTPLUG)", 24}, - {"CORE_WAKE", 32}, - {"MISC_S0IX", 40}, - {"MISC_ABORT", 56}, -}; - -struct telem_ioss_d0ix_stateinfo { - const char *name; - u32 bit_pos; -}; - -static struct telem_ioss_d0ix_stateinfo telem_apl_ioss_d0ix_data[] = { - {"CSE", 0}, - {"SCC2", 1}, - {"GMM", 2}, - {"XDCI", 3}, - {"XHCI", 4}, - {"ISH", 5}, - {"AVS", 6}, - {"PCIE0P1", 7}, - {"PECI0P0", 8}, - {"LPSS", 9}, - {"SCC", 10}, - {"PWM", 11}, - {"PCIE1_P3", 12}, - {"PCIE1_P2", 13}, - {"PCIE1_P1", 14}, - {"PCIE1_P0", 15}, - {"CNV", 16}, - {"SATA", 17}, - {"PRTC", 18}, -}; - -struct telem_ioss_pg_info { - const char *name; - u32 bit_pos; -}; - -static struct telem_ioss_pg_info telem_apl_ioss_pg_data[] = { - {"LPSS", 0}, - {"SCC", 1}, - {"P2SB", 2}, - {"SCC2", 3}, - {"GMM", 4}, - {"PCIE0", 5}, - {"XDCI", 6}, - {"xHCI", 7}, - {"CSE", 8}, - {"SPI", 9}, - {"AVSPGD4", 10}, - {"AVSPGD3", 11}, - {"AVSPGD2", 12}, - {"AVSPGD1", 13}, - {"ISH", 14}, - {"EXI", 15}, - {"NPKVRC", 16}, - {"NPKVNN", 17}, - {"CUNIT", 18}, - {"FUSE_CTRL", 19}, - {"PCIE1", 20}, - {"CNV", 21}, - {"LPC", 22}, - {"SATA", 23}, - {"SMB", 24}, - {"PRTC", 25}, -}; - -struct telemetry_debugfs_conf { - struct telemetry_susp_stats suspend_stats; - struct dentry *telemetry_dbg_dir; - - /* Bitmap Data */ - struct telem_ioss_d0ix_stateinfo *ioss_d0ix_data; - struct telem_pss_idle_stateinfo *pss_idle_data; - struct telem_pcs_blkd_info *pcs_idle_blkd_data; - struct telem_pcs_blkd_info *pcs_s0ix_blkd_data; - struct telem_pss_wakeup_info *pss_wakeup; - struct telem_pss_ltr_info *pss_ltr_data; - struct telem_ioss_pg_info *ioss_pg_data; - u8 pcs_idle_blkd_evts; - u8 pcs_s0ix_blkd_evts; - u8 pss_wakeup_evts; - u8 pss_idle_evts; - u8 pss_ltr_evts; - u8 ioss_d0ix_evts; - u8 ioss_pg_evts; - - /* IDs */ - u16 pss_ltr_blocking_id; - u16 pcs_idle_blkd_id; - u16 pcs_s0ix_blkd_id; - u16 s0ix_total_occ_id; - u16 s0ix_shlw_occ_id; - u16 s0ix_deep_occ_id; - u16 s0ix_total_res_id; - u16 s0ix_shlw_res_id; - u16 s0ix_deep_res_id; - u16 pss_wakeup_id; - u16 ioss_d0ix_id; - u16 pstates_id; - u16 pss_idle_id; - u16 ioss_d3_id; - u16 ioss_pg_id; -}; - -static struct telemetry_debugfs_conf *debugfs_conf; - -static struct telemetry_debugfs_conf telem_apl_debugfs_conf = { - .pss_idle_data = telem_apl_pss_idle_data, - .pcs_idle_blkd_data = telem_apl_pcs_idle_blkd_data, - .pcs_s0ix_blkd_data = telem_apl_pcs_s0ix_blkd_data, - .pss_ltr_data = telem_apl_pss_ltr_data, - .pss_wakeup = telem_apl_pss_wakeup, - .ioss_d0ix_data = telem_apl_ioss_d0ix_data, - .ioss_pg_data = telem_apl_ioss_pg_data, - - .pss_idle_evts = ARRAY_SIZE(telem_apl_pss_idle_data), - .pcs_idle_blkd_evts = ARRAY_SIZE(telem_apl_pcs_idle_blkd_data), - .pcs_s0ix_blkd_evts = ARRAY_SIZE(telem_apl_pcs_s0ix_blkd_data), - .pss_ltr_evts = ARRAY_SIZE(telem_apl_pss_ltr_data), - .pss_wakeup_evts = ARRAY_SIZE(telem_apl_pss_wakeup), - .ioss_d0ix_evts = ARRAY_SIZE(telem_apl_ioss_d0ix_data), - .ioss_pg_evts = ARRAY_SIZE(telem_apl_ioss_pg_data), - - .pstates_id = TELEM_APL_PSS_PSTATES_ID, - .pss_idle_id = TELEM_APL_PSS_IDLE_ID, - .pcs_idle_blkd_id = TELEM_APL_PCS_IDLE_BLOCKED_ID, - .pcs_s0ix_blkd_id = TELEM_APL_PCS_S0IX_BLOCKED_ID, - .pss_wakeup_id = TELEM_APL_PSS_WAKEUP_ID, - .pss_ltr_blocking_id = TELEM_APL_PSS_LTR_BLOCKING_ID, - .s0ix_total_occ_id = TELEM_APL_S0IX_TOTAL_OCC_ID, - .s0ix_shlw_occ_id = TELEM_APL_S0IX_SHLW_OCC_ID, - .s0ix_deep_occ_id = TELEM_APL_S0IX_DEEP_OCC_ID, - .s0ix_total_res_id = TELEM_APL_S0IX_TOTAL_RES_ID, - .s0ix_shlw_res_id = TELEM_APL_S0IX_SHLW_RES_ID, - .s0ix_deep_res_id = TELEM_APL_S0IX_DEEP_RES_ID, - .ioss_d0ix_id = TELEM_APL_D0IX_ID, - .ioss_d3_id = TELEM_APL_D3_ID, - .ioss_pg_id = TELEM_APL_PG_ID, -}; - -static const struct x86_cpu_id telemetry_debugfs_cpu_ids[] = { - X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT, &telem_apl_debugfs_conf), - X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_PLUS, &telem_apl_debugfs_conf), - {} -}; -MODULE_DEVICE_TABLE(x86cpu, telemetry_debugfs_cpu_ids); - -static int telemetry_debugfs_check_evts(void) -{ - if ((debugfs_conf->pss_idle_evts > TELEM_PSS_IDLE_EVTS) || - (debugfs_conf->pcs_idle_blkd_evts > TELEM_PSS_IDLE_BLOCKED_EVTS) || - (debugfs_conf->pcs_s0ix_blkd_evts > TELEM_PSS_S0IX_BLOCKED_EVTS) || - (debugfs_conf->pss_ltr_evts > TELEM_PSS_LTR_BLOCKING_EVTS) || - (debugfs_conf->pss_wakeup_evts > TELEM_PSS_S0IX_WAKEUP_EVTS) || - (debugfs_conf->ioss_d0ix_evts > TELEM_IOSS_DX_D0IX_EVTS) || - (debugfs_conf->ioss_pg_evts > TELEM_IOSS_PG_EVTS)) - return -EINVAL; - - return 0; -} - -static int telem_pss_states_show(struct seq_file *s, void *unused) -{ - struct telemetry_evtlog evtlog[TELEM_MAX_OS_ALLOCATED_EVENTS]; - struct telemetry_debugfs_conf *conf = debugfs_conf; - const char *name[TELEM_MAX_OS_ALLOCATED_EVENTS]; - u32 pcs_idle_blkd[TELEM_PSS_IDLE_BLOCKED_EVTS], - pcs_s0ix_blkd[TELEM_PSS_S0IX_BLOCKED_EVTS], - pss_s0ix_wakeup[TELEM_PSS_S0IX_WAKEUP_EVTS], - pss_ltr_blkd[TELEM_PSS_LTR_BLOCKING_EVTS], - pss_idle[TELEM_PSS_IDLE_EVTS]; - int index, idx, ret, err = 0; - u64 pstates = 0; - - ret = telemetry_read_eventlog(TELEM_PSS, evtlog, - TELEM_MAX_OS_ALLOCATED_EVENTS); - if (ret < 0) - return ret; - - err = telemetry_get_evtname(TELEM_PSS, name, - TELEM_MAX_OS_ALLOCATED_EVENTS); - if (err < 0) - return err; - - seq_puts(s, "\n----------------------------------------------------\n"); - seq_puts(s, "\tPSS TELEM EVENTLOG (Residency = field/19.2 us\n"); - seq_puts(s, "----------------------------------------------------\n"); - for (index = 0; index < ret; index++) { - seq_printf(s, "%-32s %llu\n", - name[index], evtlog[index].telem_evtlog); - - /* Fetch PSS IDLE State */ - if (evtlog[index].telem_evtid == conf->pss_idle_id) { - pss_idle[conf->pss_idle_evts - 1] = - (evtlog[index].telem_evtlog >> - conf->pss_idle_data[conf->pss_idle_evts - 1].bit_pos) & - TELEM_APL_MASK_PCS_STATE; - } - - TELEM_CHECK_AND_PARSE_EVTS(conf->pss_idle_id, - conf->pss_idle_evts - 1, - pss_idle, evtlog[index].telem_evtlog, - conf->pss_idle_data, TELEM_MASK_BIT); - - TELEM_CHECK_AND_PARSE_EVTS(conf->pcs_idle_blkd_id, - conf->pcs_idle_blkd_evts, - pcs_idle_blkd, - evtlog[index].telem_evtlog, - conf->pcs_idle_blkd_data, - TELEM_MASK_BYTE); - - TELEM_CHECK_AND_PARSE_EVTS(conf->pcs_s0ix_blkd_id, - conf->pcs_s0ix_blkd_evts, - pcs_s0ix_blkd, - evtlog[index].telem_evtlog, - conf->pcs_s0ix_blkd_data, - TELEM_MASK_BYTE); - - TELEM_CHECK_AND_PARSE_EVTS(conf->pss_wakeup_id, - conf->pss_wakeup_evts, - pss_s0ix_wakeup, - evtlog[index].telem_evtlog, - conf->pss_wakeup, TELEM_MASK_BYTE); - - 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; -} - -DEFINE_SHOW_ATTRIBUTE(telem_pss_states); - -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; -} - -DEFINE_SHOW_ATTRIBUTE(telem_ioss_states); - -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, - (u64)((s0ix_shlw_res - - conf->suspend_stats.shlw_res)*10/192)); - - seq_printf(s, "S0IX Deep\t\t\t %10u\t %10llu\n", - s0ix_deep_ctr - - conf->suspend_stats.deep_ctr, - (u64)((s0ix_deep_res - - conf->suspend_stats.deep_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, "TOTAL S0IX\t\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; -} - -DEFINE_SHOW_ATTRIBUTE(telem_soc_states); - -static int telem_s0ix_res_get(void *data, u64 *val) -{ - struct telemetry_plt_config *plt_config = telemetry_get_pltdata(); - u64 s0ix_total_res; - int ret; - - ret = intel_pmc_s0ix_counter_read(plt_config->pmc, &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; - - err = kstrtou32_from_user(userbuf, count, 0, &verbosity); - if (err) - return err; - - err = telemetry_set_trace_verbosity(TELEM_PSS, verbosity); - if (err) { - pr_err("Changing PSS Trace Verbosity Failed. Error %d\n", err); - return 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; - - err = kstrtou32_from_user(userbuf, count, 0, &verbosity); - if (err) - return err; - - err = telemetry_set_trace_verbosity(TELEM_IOSS, verbosity); - if (err) { - pr_err("Changing IOSS Trace Verbosity Failed. Error %d\n", err); - return 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; - } - - /* - * Due to some design limitations in the firmware, sometimes the - * counters do not get updated by the time we reach here. As a - * workaround, we try to see if this was a genuine case of sleep - * failure or not by cross-checking from PMC GCR registers directly. - */ - if (suspend_shlw_ctr_exit == suspend_shlw_ctr_temp && - suspend_deep_ctr_exit == suspend_deep_ctr_temp) { - struct telemetry_plt_config *plt_config = telemetry_get_pltdata(); - struct intel_pmc_dev *pmc = plt_config->pmc; - - ret = intel_pmc_gcr_read64(pmc, PMC_GCR_TELEM_SHLW_S0IX_REG, - &suspend_shlw_res_exit); - if (ret < 0) - goto out; - - ret = intel_pmc_gcr_read64(pmc, PMC_GCR_TELEM_DEEP_S0IX_REG, - &suspend_deep_res_exit); - if (ret < 0) - goto out; - - if (suspend_shlw_res_exit > suspend_shlw_res_temp) - suspend_shlw_ctr_exit++; - - if (suspend_deep_res_exit > suspend_deep_res_temp) - suspend_deep_ctr_exit++; - } - - 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 != 0) { - conf->suspend_stats.shlw_ctr += - suspend_shlw_ctr_exit; - - conf->suspend_stats.shlw_res += - suspend_shlw_res_exit; - } - - if (suspend_deep_ctr_exit != 0) { - conf->suspend_stats.deep_ctr += - suspend_deep_ctr_exit; - - conf->suspend_stats.deep_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 *dir; - - /* 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; - - if (!telemetry_get_pltdata()) { - pr_info("Invalid pltconfig, ensure IPC1 device is enabled in BIOS\n"); - return -ENODEV; - } - - err = telemetry_debugfs_check_evts(); - if (err < 0) { - pr_info("telemetry_debugfs_check_evts failed\n"); - return -EINVAL; - } - - register_pm_notifier(&pm_notifier); - - dir = debugfs_create_dir("telemetry", NULL); - debugfs_conf->telemetry_dbg_dir = dir; - - debugfs_create_file("pss_info", S_IFREG | S_IRUGO, dir, NULL, - &telem_pss_states_fops); - debugfs_create_file("ioss_info", S_IFREG | S_IRUGO, dir, NULL, - &telem_ioss_states_fops); - debugfs_create_file("soc_states", S_IFREG | S_IRUGO, dir, NULL, - &telem_soc_states_fops); - debugfs_create_file("s0ix_residency_usec", S_IFREG | S_IRUGO, dir, NULL, - &telem_s0ix_fops); - debugfs_create_file("pss_trace_verbosity", S_IFREG | S_IRUGO, dir, NULL, - &telem_pss_trc_verb_ops); - debugfs_create_file("ioss_trace_verbosity", S_IFREG | S_IRUGO, dir, - NULL, &telem_ioss_trc_verb_ops); - return 0; -} - -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 v2"); |