mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 10:00:03 +07:00
ce53da02eb
The X86_FAMILY_ANY in here is bogus. "BYT" and model 0x37 are family-6 only. Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave@sr71.net> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Zhang Rui <rui.zhang@intel.com> Cc: jacob.jun.pan@intel.com Cc: linux-pm@vger.kernel.org Link: http://lkml.kernel.org/r/20160603001952.9B6E114D@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/*
|
|
* intel_soc_dts_thermal.c
|
|
* Copyright (c) 2014, Intel Corporation.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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.
|
|
*
|
|
*/
|
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/interrupt.h>
|
|
#include <asm/cpu_device_id.h>
|
|
#include <asm/intel-family.h>
|
|
#include "intel_soc_dts_iosf.h"
|
|
|
|
#define CRITICAL_OFFSET_FROM_TJ_MAX 5000
|
|
|
|
static int crit_offset = CRITICAL_OFFSET_FROM_TJ_MAX;
|
|
module_param(crit_offset, int, 0644);
|
|
MODULE_PARM_DESC(crit_offset,
|
|
"Critical Temperature offset from tj max in millidegree Celsius.");
|
|
|
|
/* IRQ 86 is a fixed APIC interrupt for BYT DTS Aux threshold notifications */
|
|
#define BYT_SOC_DTS_APIC_IRQ 86
|
|
|
|
static int soc_dts_thres_irq;
|
|
static struct intel_soc_dts_sensors *soc_dts;
|
|
|
|
static irqreturn_t soc_irq_thread_fn(int irq, void *dev_data)
|
|
{
|
|
pr_debug("proc_thermal_interrupt\n");
|
|
intel_soc_dts_iosf_interrupt_handler(soc_dts);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static const struct x86_cpu_id soc_thermal_ids[] = {
|
|
{ X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_SILVERMONT1, 0,
|
|
BYT_SOC_DTS_APIC_IRQ},
|
|
{}
|
|
};
|
|
MODULE_DEVICE_TABLE(x86cpu, soc_thermal_ids);
|
|
|
|
static int __init intel_soc_thermal_init(void)
|
|
{
|
|
int err = 0;
|
|
const struct x86_cpu_id *match_cpu;
|
|
|
|
match_cpu = x86_match_cpu(soc_thermal_ids);
|
|
if (!match_cpu)
|
|
return -ENODEV;
|
|
|
|
/* Create a zone with 2 trips with marked as read only */
|
|
soc_dts = intel_soc_dts_iosf_init(INTEL_SOC_DTS_INTERRUPT_APIC, 2, 1);
|
|
if (IS_ERR(soc_dts)) {
|
|
err = PTR_ERR(soc_dts);
|
|
return err;
|
|
}
|
|
|
|
soc_dts_thres_irq = (int)match_cpu->driver_data;
|
|
|
|
if (soc_dts_thres_irq) {
|
|
err = request_threaded_irq(soc_dts_thres_irq, NULL,
|
|
soc_irq_thread_fn,
|
|
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
|
|
"soc_dts", soc_dts);
|
|
if (err) {
|
|
pr_err("request_threaded_irq ret %d\n", err);
|
|
goto error_irq;
|
|
}
|
|
}
|
|
|
|
err = intel_soc_dts_iosf_add_read_only_critical_trip(soc_dts,
|
|
crit_offset);
|
|
if (err)
|
|
goto error_trips;
|
|
|
|
return 0;
|
|
|
|
error_trips:
|
|
if (soc_dts_thres_irq)
|
|
free_irq(soc_dts_thres_irq, soc_dts);
|
|
error_irq:
|
|
intel_soc_dts_iosf_exit(soc_dts);
|
|
|
|
return err;
|
|
}
|
|
|
|
static void __exit intel_soc_thermal_exit(void)
|
|
{
|
|
if (soc_dts_thres_irq)
|
|
free_irq(soc_dts_thres_irq, soc_dts);
|
|
intel_soc_dts_iosf_exit(soc_dts);
|
|
}
|
|
|
|
module_init(intel_soc_thermal_init)
|
|
module_exit(intel_soc_thermal_exit)
|
|
|
|
MODULE_DESCRIPTION("Intel SoC DTS Thermal Driver");
|
|
MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
|
|
MODULE_LICENSE("GPL v2");
|