mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/drivers/acpi/acpi_pad.c
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@@ -1,17 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * acpi_pad.c ACPI Processor Aggregator Driver
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  *
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  * Copyright (c) 2009, Intel Corporation.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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  */
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 #include <linux/kernel.h>
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@@ -70,8 +61,10 @@
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 #if defined(CONFIG_X86)
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 	switch (boot_cpu_data.x86_vendor) {
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+	case X86_VENDOR_HYGON:
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 	case X86_VENDOR_AMD:
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 	case X86_VENDOR_INTEL:
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+	case X86_VENDOR_ZHAOXIN:
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 		/*
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 		 * AMD Fam10h TSC will tick in all
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 		 * C/P/S0/S1 states when this bit is set.
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@@ -95,7 +88,7 @@
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 	cpumask_var_t tmp;
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 	int cpu;
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 	unsigned long min_weight = -1;
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-	unsigned long uninitialized_var(preferred_cpu);
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+	unsigned long preferred_cpu;
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 	if (!alloc_cpumask_var(&tmp, GFP_KERNEL))
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 		return;
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@@ -143,12 +136,11 @@
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 static unsigned int round_robin_time = 1; /* second */
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 static int power_saving_thread(void *data)
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 {
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-	struct sched_param param = {.sched_priority = 1};
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 	int do_sleep;
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 	unsigned int tsk_index = (unsigned long)data;
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 	u64 last_jiffies = 0;
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-	sched_setscheduler(current, SCHED_RR, &param);
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+	sched_set_fifo_low(current);
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 	while (!kthread_should_stop()) {
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 		unsigned long expire_time;
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@@ -269,7 +261,7 @@
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 	return ps_tsk_num;
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 }
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-static ssize_t acpi_pad_rrtime_store(struct device *dev,
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+static ssize_t rrtime_store(struct device *dev,
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 	struct device_attribute *attr, const char *buf, size_t count)
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 {
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 	unsigned long num;
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@@ -283,16 +275,14 @@
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 	return count;
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 }
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-static ssize_t acpi_pad_rrtime_show(struct device *dev,
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+static ssize_t rrtime_show(struct device *dev,
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 	struct device_attribute *attr, char *buf)
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 {
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 	return scnprintf(buf, PAGE_SIZE, "%d\n", round_robin_time);
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 }
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-static DEVICE_ATTR(rrtime, S_IRUGO|S_IWUSR,
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-	acpi_pad_rrtime_show,
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-	acpi_pad_rrtime_store);
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+static DEVICE_ATTR_RW(rrtime);
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-static ssize_t acpi_pad_idlepct_store(struct device *dev,
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+static ssize_t idlepct_store(struct device *dev,
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 	struct device_attribute *attr, const char *buf, size_t count)
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 {
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 	unsigned long num;
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@@ -306,16 +296,14 @@
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 	return count;
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 }
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-static ssize_t acpi_pad_idlepct_show(struct device *dev,
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+static ssize_t idlepct_show(struct device *dev,
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 	struct device_attribute *attr, char *buf)
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 {
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 	return scnprintf(buf, PAGE_SIZE, "%d\n", idle_pct);
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 }
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-static DEVICE_ATTR(idlepct, S_IRUGO|S_IWUSR,
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-	acpi_pad_idlepct_show,
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-	acpi_pad_idlepct_store);
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+static DEVICE_ATTR_RW(idlepct);
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-static ssize_t acpi_pad_idlecpus_store(struct device *dev,
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+static ssize_t idlecpus_store(struct device *dev,
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 	struct device_attribute *attr, const char *buf, size_t count)
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 {
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 	unsigned long num;
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@@ -327,16 +315,14 @@
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 	return count;
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 }
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-static ssize_t acpi_pad_idlecpus_show(struct device *dev,
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+static ssize_t idlecpus_show(struct device *dev,
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 	struct device_attribute *attr, char *buf)
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 {
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 	return cpumap_print_to_pagebuf(false, buf,
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 				       to_cpumask(pad_busy_cpus_bits));
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 }
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-static DEVICE_ATTR(idlecpus, S_IRUGO|S_IWUSR,
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-	acpi_pad_idlecpus_show,
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-	acpi_pad_idlecpus_store);
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+static DEVICE_ATTR_RW(idlecpus);
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 static int acpi_pad_add_sysfs(struct acpi_device *device)
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 {