/* * Copyright (C) 2014 Freescale Semiconductor, Inc. * * Author: Jun Li * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __DRIVERS_USB_CHIPIDEA_OTG_FSM_H #define __DRIVERS_USB_CHIPIDEA_OTG_FSM_H #include /* * A-DEVICE timing constants */ /* Wait for VBUS Rise */ #define TA_WAIT_VRISE (100) /* a_wait_vrise: section 7.1.2 * a_wait_vrise_tmr: section 7.4.5.1 * TA_VBUS_RISE <= 100ms, section 4.4 * Table 4-1: Electrical Characteristics * ->DC Electrical Timing */ /* Wait for VBUS Fall */ #define TA_WAIT_VFALL (1000) /* a_wait_vfall: section 7.1.7 * a_wait_vfall_tmr: section: 7.4.5.2 */ /* Wait for B-Connect */ #define TA_WAIT_BCON (10000) /* a_wait_bcon: section 7.1.3 * TA_WAIT_BCON: should be between 1100 * and 30000 ms, section 5.5, Table 5-1 */ /* A-Idle to B-Disconnect */ #define TA_AIDL_BDIS (5000) /* a_suspend min 200 ms, section 5.2.1 * TA_AIDL_BDIS: section 5.5, Table 5-1 */ /* B-Idle to A-Disconnect */ #define TA_BIDL_ADIS (500) /* TA_BIDL_ADIS: section 5.2.1 * 500ms is used for B switch to host * for safe */ /* * B-device timing constants */ /* Data-Line Pulse Time*/ #define TB_DATA_PLS (10) /* b_srp_init,continue 5~10ms * section:5.1.3 */ /* SRP Fail Time */ #define TB_SRP_FAIL (6000) /* b_srp_init,fail time 5~6s * section:5.1.6 */ /* A-SE0 to B-Reset */ #define TB_ASE0_BRST (155) /* minimum 155 ms, section:5.3.1 */ /* SE0 Time Before SRP */ #define TB_SE0_SRP (1000) /* b_idle,minimum 1s, section:5.1.2 */ /* SSEND time before SRP */ #define TB_SSEND_SRP (1500) /* minimum 1.5 sec, section:5.1.2 */ #define TB_AIDL_BDIS (20) /* 4ms ~ 150ms, section 5.2.1 */ #if IS_ENABLED(CONFIG_USB_OTG_FSM) int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci); int ci_otg_fsm_work(struct ci_hdrc *ci); irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci); void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci); void ci_hdrc_otg_fsm_remove(struct ci_hdrc *ci); #else static inline int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci) { return 0; } static inline int ci_otg_fsm_work(struct ci_hdrc *ci) { return -ENXIO; } static inline irqreturn_t ci_otg_fsm_irq(struct ci_hdrc *ci) { return IRQ_NONE; } static inline void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci) { } static inline void ci_hdrc_otg_fsm_remove(struct ci_hdrc *ci) { } #endif #endif /* __DRIVERS_USB_CHIPIDEA_OTG_FSM_H */ tion value='grep'>log msg
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 23:58:38 +0100
committerIngo Molnar <mingo@kernel.org>2017-02-01 08:37:27 +0100
commitdd86e373e09fb16b83e8adf5c48c421a4ca76468 (patch)
tree55703c2ea8584e303e342090614e0aab3509ab21 /tools/testing/selftests/cpu-hotplug
parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/testing/selftests/cpu-hotplug')