therm_throt.c (762f99f4f3cb41a775b5157dd761217beba65873) therm_throt.c (1cb19cabeb0e187b6c244d0da73d27f7432c40dc)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Thermal throttle event support code (such as syslog messaging and rate
4 * limiting) that was factored out from x86_64 (mce_intel.c) and i386 (p4.c).
5 *
6 * This allows consistent reporting of CPU thermal throttle events.
7 *
8 * Maintains a counter in /sys that keeps track of the number of thermal

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27
28#include <asm/processor.h>
29#include <asm/thermal.h>
30#include <asm/traps.h>
31#include <asm/apic.h>
32#include <asm/irq.h>
33#include <asm/msr.h>
34
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Thermal throttle event support code (such as syslog messaging and rate
4 * limiting) that was factored out from x86_64 (mce_intel.c) and i386 (p4.c).
5 *
6 * This allows consistent reporting of CPU thermal throttle events.
7 *
8 * Maintains a counter in /sys that keeps track of the number of thermal

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27
28#include <asm/processor.h>
29#include <asm/thermal.h>
30#include <asm/traps.h>
31#include <asm/apic.h>
32#include <asm/irq.h>
33#include <asm/msr.h>
34
35#include "intel_hfi.h"
35#include "thermal_interrupt.h"
36
37/* How long to wait between reporting thermal events */
38#define CHECK_INTERVAL (300 * HZ)
39
40#define THERMAL_THROTTLING_EVENT 0
41#define POWER_LIMIT_EVENT 1
42

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504
505static __init int thermal_throttle_init_device(void)
506{
507 int ret;
508
509 if (!atomic_read(&therm_throt_en))
510 return 0;
511
36#include "thermal_interrupt.h"
37
38/* How long to wait between reporting thermal events */
39#define CHECK_INTERVAL (300 * HZ)
40
41#define THERMAL_THROTTLING_EVENT 0
42#define POWER_LIMIT_EVENT 1
43

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505
506static __init int thermal_throttle_init_device(void)
507{
508 int ret;
509
510 if (!atomic_read(&therm_throt_en))
511 return 0;
512
513 intel_hfi_init();
514
512 ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/therm:online",
513 thermal_throttle_online,
514 thermal_throttle_offline);
515 return ret < 0 ? ret : 0;
516}
517device_initcall(thermal_throttle_init_device);
518
519#endif /* CONFIG_SYSFS */

--- 211 unchanged lines hidden --- 		515 ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/therm:online",
516 thermal_throttle_online,
517 thermal_throttle_offline);
518 return ret < 0 ? ret : 0;
519}
520device_initcall(thermal_throttle_init_device);
521
522#endif /* CONFIG_SYSFS */

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