From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/include/linux/cpufreq.h | 212 +++++++++++++++++++++++++++++++++++-----------------
1 files changed, 141 insertions(+), 71 deletions(-)
diff --git a/kernel/include/linux/cpufreq.h b/kernel/include/linux/cpufreq.h
index 4c7068a..54ee250 100644
--- a/kernel/include/linux/cpufreq.h
+++ b/kernel/include/linux/cpufreq.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* linux/include/linux/cpufreq.h
*
* Copyright (C) 2001 Russell King
* (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#ifndef _LINUX_CPUFREQ_H
#define _LINUX_CPUFREQ_H
@@ -16,6 +13,7 @@
#include <linux/completion.h>
#include <linux/kobject.h>
#include <linux/notifier.h>
+#include <linux/pm_qos.h>
#include <linux/spinlock.h>
#include <linux/sysfs.h>
@@ -42,24 +40,12 @@
CPUFREQ_TABLE_SORTED_DESCENDING
};
-struct cpufreq_freqs {
- unsigned int cpu; /* cpu nr */
- unsigned int old;
- unsigned int new;
- u8 flags; /* flags of cpufreq_driver, see below. */
-};
-
struct cpufreq_cpuinfo {
unsigned int max_freq;
unsigned int min_freq;
/* in 10^(-9) s = nanoseconds */
unsigned int transition_latency;
-};
-
-struct cpufreq_user_policy {
- unsigned int min; /* in kHz */
- unsigned int max; /* in kHz */
};
struct cpufreq_policy {
@@ -91,7 +77,10 @@
struct work_struct update; /* if update_policy() needs to be
* called, but you're in IRQ context */
- struct cpufreq_user_policy user_policy;
+ struct freq_constraints constraints;
+ struct freq_qos_request *min_freq_req;
+ struct freq_qos_request *max_freq_req;
+
struct cpufreq_frequency_table *freq_table;
enum cpufreq_table_sorting freq_table_sorted;
@@ -121,6 +110,12 @@
bool fast_switch_enabled;
/*
+ * Set if the CPUFREQ_GOV_STRICT_TARGET flag is set for the current
+ * governor.
+ */
+ bool strict_target;
+
+ /*
* Preferred average time interval between consecutive invocations of
* the driver to set the frequency for this policy. To be set by the
* scaling driver (0, which is the default, means no preference).
@@ -138,7 +133,7 @@
/* Cached frequency lookup from cpufreq_driver_resolve_freq. */
unsigned int cached_target_freq;
- int cached_resolved_idx;
+ unsigned int cached_resolved_idx;
/* Synchronization for frequency transitions */
bool transition_ongoing; /* Tracks transition status */
@@ -154,6 +149,30 @@
/* Pointer to the cooling device if used for thermal mitigation */
struct thermal_cooling_device *cdev;
+
+ struct notifier_block nb_min;
+ struct notifier_block nb_max;
+};
+
+/*
+ * Used for passing new cpufreq policy data to the cpufreq driver's ->verify()
+ * callback for sanitization. That callback is only expected to modify the min
+ * and max values, if necessary, and specifically it must not update the
+ * frequency table.
+ */
+struct cpufreq_policy_data {
+ struct cpufreq_cpuinfo cpuinfo;
+ struct cpufreq_frequency_table *freq_table;
+ unsigned int cpu;
+ unsigned int min; /* in kHz */
+ unsigned int max; /* in kHz */
+};
+
+struct cpufreq_freqs {
+ struct cpufreq_policy *policy;
+ unsigned int old;
+ unsigned int new;
+ u8 flags; /* flags of cpufreq_driver, see below. */
};
/* Only for ACPI */
@@ -178,24 +197,33 @@
static inline void cpufreq_cpu_put(struct cpufreq_policy *policy) { }
#endif
+static inline bool policy_is_inactive(struct cpufreq_policy *policy)
+{
+ return cpumask_empty(policy->cpus);
+}
+
static inline bool policy_is_shared(struct cpufreq_policy *policy)
{
return cpumask_weight(policy->cpus) > 1;
}
-/* /sys/devices/system/cpu/cpufreq: entry point for global variables */
-extern struct kobject *cpufreq_global_kobject;
-
#ifdef CONFIG_CPU_FREQ
unsigned int cpufreq_get(unsigned int cpu);
unsigned int cpufreq_quick_get(unsigned int cpu);
unsigned int cpufreq_quick_get_max(unsigned int cpu);
+unsigned int cpufreq_get_hw_max_freq(unsigned int cpu);
void disable_cpufreq(void);
u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy);
+
+struct cpufreq_policy *cpufreq_cpu_acquire(unsigned int cpu);
+void cpufreq_cpu_release(struct cpufreq_policy *policy);
int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu);
+void refresh_frequency_limits(struct cpufreq_policy *policy);
void cpufreq_update_policy(unsigned int cpu);
+void cpufreq_update_limits(unsigned int cpu);
bool have_governor_per_policy(void);
+bool cpufreq_supports_freq_invariance(void);
struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy);
void cpufreq_enable_fast_switch(struct cpufreq_policy *policy);
void cpufreq_disable_fast_switch(struct cpufreq_policy *policy);
@@ -212,8 +240,15 @@
{
return 0;
}
+static inline unsigned int cpufreq_get_hw_max_freq(unsigned int cpu)
+{
+ return 0;
+}
+static inline bool cpufreq_supports_freq_invariance(void)
+{
+ return false;
+}
static inline void disable_cpufreq(void) { }
-static inline void cpufreq_update_policy(unsigned int cpu) { }
#endif
#ifdef CONFIG_CPU_FREQ_STAT
@@ -269,12 +304,12 @@
struct cpufreq_driver {
char name[CPUFREQ_NAME_LEN];
- u8 flags;
+ u16 flags;
void *driver_data;
/* needed by all drivers */
int (*init)(struct cpufreq_policy *policy);
- int (*verify)(struct cpufreq_policy *policy);
+ int (*verify)(struct cpufreq_policy_data *policy);
/* define one out of two */
int (*setpolicy)(struct cpufreq_policy *policy);
@@ -306,7 +341,7 @@
*
* get_intermediate should return a stable intermediate frequency
* platform wants to switch to and target_intermediate() should set CPU
- * to to that frequency, before jumping to the frequency corresponding
+ * to that frequency, before jumping to the frequency corresponding
* to 'index'. Core will take care of sending notifications and driver
* doesn't have to handle them in target_intermediate() or
* target_index().
@@ -323,9 +358,14 @@
/* should be defined, if possible */
unsigned int (*get)(unsigned int cpu);
+ /* Called to update policy limits on firmware notifications. */
+ void (*update_limits)(unsigned int cpu);
+
/* optional */
int (*bios_limit)(int cpu, unsigned int *limit);
+ int (*online)(struct cpufreq_policy *policy);
+ int (*offline)(struct cpufreq_policy *policy);
int (*exit)(struct cpufreq_policy *policy);
void (*stop_cpu)(struct cpufreq_policy *policy);
int (*suspend)(struct cpufreq_policy *policy);
@@ -338,18 +378,19 @@
/* platform specific boost support code */
bool boost_enabled;
- int (*set_boost)(int state);
+ int (*set_boost)(struct cpufreq_policy *policy, int state);
};
/* flags */
-#define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
- all ->init() calls failed */
-#define CPUFREQ_CONST_LOOPS (1 << 1) /* loops_per_jiffy or other
- kernel "constants" aren't
- affected by frequency
- transitions */
-#define CPUFREQ_PM_NO_WARN (1 << 2) /* don't warn on suspend/resume
- speed mismatches */
+
+/* driver isn't removed even if all ->init() calls failed */
+#define CPUFREQ_STICKY BIT(0)
+
+/* loops_per_jiffy or other kernel "constants" aren't affected by frequency transitions */
+#define CPUFREQ_CONST_LOOPS BIT(1)
+
+/* don't warn on suspend/resume speed mismatches */
+#define CPUFREQ_PM_NO_WARN BIT(2)
/*
* This should be set by platforms having multiple clock-domains, i.e.
@@ -357,14 +398,14 @@
* be created in cpu/cpu<num>/cpufreq/ directory and so they can use the same
* governor with different tunables for different clusters.
*/
-#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3)
+#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY BIT(3)
/*
* Driver will do POSTCHANGE notifications from outside of their ->target()
* routine and so must set cpufreq_driver->flags with this flag, so that core
* can handle them specially.
*/
-#define CPUFREQ_ASYNC_NOTIFICATION (1 << 4)
+#define CPUFREQ_ASYNC_NOTIFICATION BIT(4)
/*
* Set by drivers which want cpufreq core to check if CPU is running at a
@@ -373,13 +414,13 @@
* from the table. And if that fails, we will stop further boot process by
* issuing a BUG_ON().
*/
-#define CPUFREQ_NEED_INITIAL_FREQ_CHECK (1 << 5)
+#define CPUFREQ_NEED_INITIAL_FREQ_CHECK BIT(5)
/*
* Set by drivers to disallow use of governors with "dynamic_switching" flag
* set.
*/
-#define CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING (1 << 6)
+#define CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING BIT(6)
/*
* Set by drivers that want the core to automatically register the cpufreq
@@ -387,14 +428,30 @@
*/
#define CPUFREQ_IS_COOLING_DEV BIT(7)
+/*
+ * Set by drivers that need to update internale upper and lower boundaries along
+ * with the target frequency and so the core and governors should also invoke
+ * the diver if the target frequency does not change, but the policy min or max
+ * may have changed.
+ */
+#define CPUFREQ_NEED_UPDATE_LIMITS BIT(8)
+
int cpufreq_register_driver(struct cpufreq_driver *driver_data);
int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
+bool cpufreq_driver_test_flags(u16 flags);
const char *cpufreq_get_current_driver(void);
void *cpufreq_get_driver_data(void);
-static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
- unsigned int min, unsigned int max)
+static inline int cpufreq_thermal_control_enabled(struct cpufreq_driver *drv)
+{
+ return IS_ENABLED(CONFIG_CPU_THERMAL) &&
+ (drv->flags & CPUFREQ_IS_COOLING_DEV);
+}
+
+static inline void cpufreq_verify_within_limits(struct cpufreq_policy_data *policy,
+ unsigned int min,
+ unsigned int max)
{
if (policy->min < min)
policy->min = min;
@@ -410,10 +467,10 @@
}
static inline void
-cpufreq_verify_within_cpu_limits(struct cpufreq_policy *policy)
+cpufreq_verify_within_cpu_limits(struct cpufreq_policy_data *policy)
{
cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- policy->cpuinfo.max_freq);
+ policy->cpuinfo.max_freq);
}
#ifdef CONFIG_CPU_FREQ
@@ -437,8 +494,8 @@
#define CPUFREQ_POSTCHANGE (1)
/* Policy Notifiers */
-#define CPUFREQ_ADJUST (0)
-#define CPUFREQ_NOTIFY (1)
+#define CPUFREQ_CREATE_POLICY (0)
+#define CPUFREQ_REMOVE_POLICY (1)
#ifdef CONFIG_CPU_FREQ
int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list);
@@ -491,6 +548,7 @@
* CPUFREQ GOVERNORS *
*********************************************************************/
+#define CPUFREQ_POLICY_UNKNOWN (0)
/*
* If (cpufreq_driver->target) exists, the ->governor decides what frequency
* within the limits is used. If (cpufreq_driver->setpolicy> exists, these
@@ -518,11 +576,19 @@
char *buf);
int (*store_setspeed) (struct cpufreq_policy *policy,
unsigned int freq);
- /* For governors which change frequency dynamically by themselves */
- bool dynamic_switching;
struct list_head governor_list;
struct module *owner;
+ u8 flags;
};
+
+/* Governor flags */
+
+/* For governors which change frequency dynamically by themselves */
+#define CPUFREQ_GOV_DYNAMIC_SWITCHING BIT(0)
+
+/* For governors wanting the target frequency to be set exactly */
+#define CPUFREQ_GOV_STRICT_TARGET BIT(1)
+
/* Pass a target to the cpufreq driver */
unsigned int cpufreq_driver_fast_switch(struct cpufreq_policy *policy,
@@ -538,6 +604,22 @@
unsigned int cpufreq_policy_transition_delay_us(struct cpufreq_policy *policy);
int cpufreq_register_governor(struct cpufreq_governor *governor);
void cpufreq_unregister_governor(struct cpufreq_governor *governor);
+int cpufreq_start_governor(struct cpufreq_policy *policy);
+void cpufreq_stop_governor(struct cpufreq_policy *policy);
+
+#define cpufreq_governor_init(__governor) \
+static int __init __governor##_init(void) \
+{ \
+ return cpufreq_register_governor(&__governor); \
+} \
+core_initcall(__governor##_init)
+
+#define cpufreq_governor_exit(__governor) \
+static void __exit __governor##_exit(void) \
+{ \
+ return cpufreq_unregister_governor(&__governor); \
+} \
+module_exit(__governor##_exit)
struct cpufreq_governor *cpufreq_default_governor(void);
struct cpufreq_governor *cpufreq_fallback_governor(void);
@@ -662,9 +744,9 @@
int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table);
-int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
+int cpufreq_frequency_table_verify(struct cpufreq_policy_data *policy,
struct cpufreq_frequency_table *table);
-int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy);
+int cpufreq_generic_frequency_table_verify(struct cpufreq_policy_data *policy);
int cpufreq_table_index_unsorted(struct cpufreq_policy *policy,
unsigned int target_freq,
@@ -902,8 +984,8 @@
case CPUFREQ_RELATION_C:
return cpufreq_table_find_index_c(policy, target_freq);
default:
- pr_err("%s: Invalid relation: %d\n", __func__, relation);
- return -EINVAL;
+ WARN_ON_ONCE(1);
+ return 0;
}
}
@@ -941,29 +1023,17 @@
}
#endif
-#if defined(CONFIG_ENERGY_MODEL) && defined(CONFIG_CPU_FREQ_GOV_SCHEDUTIL)
-void sched_cpufreq_governor_change(struct cpufreq_policy *policy,
- struct cpufreq_governor *old_gov);
-#else
-static inline void sched_cpufreq_governor_change(struct cpufreq_policy *policy,
- struct cpufreq_governor *old_gov) { }
-#endif
-
-#if defined(CONFIG_ARCH_ROCKCHIP) && defined(CONFIG_CPU_FREQ_GOV_INTERACTIVE)
-void cpufreq_task_boost(int cpu, unsigned long util);
-#else
-static inline void cpufreq_task_boost(int cpu, unsigned long util)
-{
-}
-#endif
-
extern void arch_freq_prepare_all(void);
extern unsigned int arch_freq_get_on_cpu(int cpu);
-extern void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
- unsigned long max_freq);
-extern void arch_set_max_freq_scale(struct cpumask *cpus,
- unsigned long policy_max_freq);
+#ifndef arch_set_freq_scale
+static __always_inline
+void arch_set_freq_scale(const struct cpumask *cpus,
+ unsigned long cur_freq,
+ unsigned long max_freq)
+{
+}
+#endif
/* the following are really really optional */
extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
@@ -972,7 +1042,7 @@
int cpufreq_table_validate_and_sort(struct cpufreq_policy *policy);
unsigned int cpufreq_generic_get(unsigned int cpu);
-int cpufreq_generic_init(struct cpufreq_policy *policy,
+void cpufreq_generic_init(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table,
unsigned int transition_latency);
#endif /* _LINUX_CPUFREQ_H */
--
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