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authorKate Hsuan <hpa@redhat.com>2021-08-20 14:04:46 +0300
committerHans de Goede <hdegoede@redhat.com>2021-08-20 21:08:09 +0300
commit2b6cb8f2e88b416393d2b34cad51bfe6e1aae8a7 (patch)
tree07ade762faf9047e2974bfe33b1aa8210de4e825 /drivers/platform/x86/intel_telemetry_debugfs.c
parentfa082a7cf5a66a42a06da048afd972e2cc1b67ea (diff)
downloadlinux-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.c961
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");