@@ -1158,10 +1158,6 @@ config X86_MCE_INJECT
If you don't know what a machine check is and you don't do kernel
QA it is safe to say n.
-config X86_THERMAL_VECTOR
- def_bool y
- depends on X86_MCE_INTEL
-
source "arch/x86/events/Kconfig"
config X86_LEGACY_VM86
@@ -53,4 +53,8 @@ void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
#endif
+#ifdef CONFIG_X86_THERMAL_VECTOR
+void thermal_set_handler(void (*handler)(void));
+#endif
+
#endif /* _ASM_X86_IRQ_H */
@@ -288,22 +288,6 @@ extern void (*mce_threshold_vector)(void);
/* Deferred error interrupt handler */
extern void (*deferred_error_int_vector)(void);
-/*
- * Thermal handler
- */
-
-void intel_init_thermal(struct cpuinfo_x86 *c);
-
-/* Interrupt Handler for core thermal thresholds */
-extern int (*platform_thermal_notify)(__u64 msr_val);
-
-/* Interrupt Handler for package thermal thresholds */
-extern int (*platform_thermal_package_notify)(__u64 msr_val);
-
-/* Callback support of rate control, return true, if
- * callback has rate control */
-extern bool (*platform_thermal_package_rate_control)(void);
-
/*
* Used by APEI to report memory error via /dev/mcelog
*/
new file mode 100644
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_THERMAL_H
+#define _ASM_X86_THERMAL_H
+
+/* Interrupt Handler for package thermal thresholds */
+extern int (*platform_thermal_package_notify)(__u64 msr_val);
+
+/* Interrupt Handler for core thermal thresholds */
+extern int (*platform_thermal_notify)(__u64 msr_val);
+
+/* Callback support of rate control, return true, if
+ * callback has rate control */
+extern bool (*platform_thermal_package_rate_control)(void);
+
+#ifdef CONFIG_X86_THERMAL_VECTOR
+void intel_init_thermal(struct cpuinfo_x86 *c);
+#else
+static inline void intel_init_thermal(struct cpuinfo_x86 *c) { }
+#endif
+
+#endif /* _ASM_X86_THERMAL_H */
@@ -24,6 +24,7 @@
#include <asm/traps.h>
#include <asm/resctrl.h>
#include <asm/numa.h>
+#include <asm/thermal.h>
#ifdef CONFIG_X86_64
#include <linux/topology.h>
@@ -719,6 +720,8 @@ static void init_intel(struct cpuinfo_x86 *c)
tsx_disable();
split_lock_init();
+
+ intel_init_thermal(c);
}
#ifdef CONFIG_X86_32
@@ -9,8 +9,6 @@ obj-$(CONFIG_X86_MCE_THRESHOLD) += threshold.o
mce-inject-y := inject.o
obj-$(CONFIG_X86_MCE_INJECT) += mce-inject.o
-obj-$(CONFIG_X86_THERMAL_VECTOR) += therm_throt.o
-
obj-$(CONFIG_ACPI_APEI) += apei.o
obj-$(CONFIG_X86_MCELOG_LEGACY) += dev-mcelog.o
@@ -531,7 +531,6 @@ static void intel_imc_init(struct cpuinfo_x86 *c)
void mce_intel_feature_init(struct cpuinfo_x86 *c)
{
- intel_init_thermal(c);
intel_init_cmci();
intel_init_lmce();
intel_ppin_init(c);
@@ -374,3 +374,31 @@ void fixup_irqs(void)
}
}
#endif
+
+#ifdef CONFIG_X86_THERMAL_VECTOR
+static void unexpected_thermal_interrupt(void)
+{
+ pr_err("CPU%d: Unexpected LVT thermal interrupt!\n",
+ smp_processor_id());
+}
+
+static void (*smp_thermal_vector)(void) = unexpected_thermal_interrupt;
+
+void thermal_set_handler(void (*handler)(void))
+{
+ if (handler)
+ smp_thermal_vector = handler;
+ else
+ smp_thermal_vector = unexpected_thermal_interrupt;
+}
+EXPORT_SYMBOL_GPL(thermal_set_handler);
+
+DEFINE_IDTENTRY_SYSVEC(sysvec_thermal)
+{
+ trace_thermal_apic_entry(THERMAL_APIC_VECTOR);
+ inc_irq_stat(irq_thermal_count);
+ smp_thermal_vector();
+ trace_thermal_apic_exit(THERMAL_APIC_VECTOR);
+ ack_APIC_irq();
+}
+#endif
@@ -8,6 +8,10 @@ config INTEL_POWERCLAMP
enforce idle time which results in more package C-state residency. The
user interface is exposed via generic thermal framework.
+config X86_THERMAL_VECTOR
+ def_bool y
+ depends on X86 && CPU_SUP_INTEL && X86_LOCAL_APIC
+
config X86_PKG_TEMP_THERMAL
tristate "X86 package temperature thermal driver"
depends on X86_THERMAL_VECTOR
@@ -10,3 +10,4 @@ obj-$(CONFIG_INTEL_QUARK_DTS_THERMAL) += intel_quark_dts_thermal.o
obj-$(CONFIG_INT340X_THERMAL) += int340x_thermal/
obj-$(CONFIG_INTEL_BXT_PMIC_THERMAL) += intel_bxt_pmic_thermal.o
obj-$(CONFIG_INTEL_PCH_THERMAL) += intel_pch_thermal.o
+obj-$(CONFIG_X86_THERMAL_VECTOR) += therm_throt.o
similarity index 97%
rename from arch/x86/kernel/cpu/mce/therm_throt.c
rename to drivers/thermal/intel/therm_throt.c
@@ -26,13 +26,11 @@
#include <linux/cpu.h>
#include <asm/processor.h>
+#include <asm/thermal.h>
#include <asm/traps.h>
#include <asm/apic.h>
-#include <asm/mce.h>
+#include <asm/irq.h>
#include <asm/msr.h>
-#include <asm/trace/irq_vectors.h>
-
-#include "internal.h"
/* How long to wait between reporting thermal events */
#define CHECK_INTERVAL (300 * HZ)
@@ -606,23 +604,6 @@ static void intel_thermal_interrupt(void)
}
}
-static void unexpected_thermal_interrupt(void)
-{
- pr_err("CPU%d: Unexpected LVT thermal interrupt!\n",
- smp_processor_id());
-}
-
-static void (*smp_thermal_vector)(void) = unexpected_thermal_interrupt;
-
-DEFINE_IDTENTRY_SYSVEC(sysvec_thermal)
-{
- trace_thermal_apic_entry(THERMAL_APIC_VECTOR);
- inc_irq_stat(irq_thermal_count);
- smp_thermal_vector();
- trace_thermal_apic_exit(THERMAL_APIC_VECTOR);
- ack_APIC_irq();
-}
-
/* Thermal monitoring depends on APIC, ACPI and clock modulation */
static int intel_thermal_supported(struct cpuinfo_x86 *c)
{
@@ -718,7 +699,7 @@ void intel_init_thermal(struct cpuinfo_x86 *c)
| PACKAGE_THERM_INT_HIGH_ENABLE), h);
}
- smp_thermal_vector = intel_thermal_interrupt;
+ thermal_set_handler(intel_thermal_interrupt);
rdmsr(MSR_IA32_MISC_ENABLE, l, h);
wrmsr(MSR_IA32_MISC_ENABLE, l | MSR_IA32_MISC_ENABLE_TM1, h);
@@ -17,8 +17,9 @@
#include <linux/pm.h>
#include <linux/thermal.h>
#include <linux/debugfs.h>
+
#include <asm/cpu_device_id.h>
-#include <asm/mce.h>
+#include <asm/thermal.h>
/*
* Rate control delay: Idea is to introduce denounce effect