/* * Intel_SCU 0.2: An Intel SCU IOH Based Watchdog Device * for Intel part #(s): * - AF82MP20 PCH * * Copyright (C) 2009-2010 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of version 2 of the GNU General * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be * useful, but WITHOUT ANY WARRANTY; without even the implied * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR * PURPOSE. See the GNU General Public License for more details. * You should have received a copy of the GNU General Public * License along with this program; if not, write to the Free * Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. * The full GNU General Public License is included in this * distribution in the file called COPYING. * */ #ifndef __INTEL_SCU_WATCHDOG_H #define __INTEL_SCU_WATCHDOG_H #define WDT_VER "0.3" /* minimum time between interrupts */ #define MIN_TIME_CYCLE 1 /* Time from warning to reboot is 2 seconds */ #define DEFAULT_SOFT_TO_HARD_MARGIN 2 #define MAX_TIME 170 #define DEFAULT_TIME 5 #define MAX_SOFT_TO_HARD_MARGIN (MAX_TIME-MIN_TIME_CYCLE) /* Ajustment to clock tick frequency to make timing come out right */ #define FREQ_ADJUSTMENT 8 struct intel_scu_watchdog_dev { ulong driver_open; ulong driver_closed; u32 timer_started; u32 timer_set; u32 threshold; u32 soft_threshold; u32 __iomem *timer_load_count_addr; u32 __iomem *timer_current_value_addr; u32 __iomem *timer_control_addr; u32 __iomem *timer_clear_interrupt_addr; u32 __iomem *timer_interrupt_status_addr; struct sfi_timer_table_entry *timer_tbl_ptr; struct notifier_block intel_scu_notifier; struct miscdevice miscdev; }; extern int sfi_mtimer_num; /* extern struct sfi_timer_table_entry *sfi_get_mtmr(int hint); */ #endif /* __INTEL_SCU_WATCHDOG_H */ gi/linux/net-next.git/diff/include/uapi/drm/radeon_drm.h?id=dd86e373e09fb16b83e8adf5c48c421a4ca76468'>diff
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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 /include/uapi/drm/radeon_drm.h
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 'include/uapi/drm/radeon_drm.h')