| /kernel/linux/linux-6.6/drivers/cpufreq/ |
| D | cpufreq.c | 82 static unsigned int __cpufreq_get(struct cpufreq_policy *policy);
83 static int cpufreq_init_governor(struct cpufreq_policy *policy);
84 static void cpufreq_exit_governor(struct cpufreq_policy *policy);
85 static void cpufreq_governor_limits(struct cpufreq_policy *policy);
86 static int cpufreq_set_policy(struct cpufreq_policy *policy,
92 * Two notifier lists: the "policy" list is involved in the
93 * validation process for a new CPU frequency policy; the
120 struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy) in get_governor_parent_kobj() argument
123 return &policy->kobj; in get_governor_parent_kobj()
172 * - policy->cpus with all possible CPUs
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| D | cpufreq_userspace.c | 23 * @policy: pointer to policy struct where freq is being set
28 static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq) in cpufreq_set() argument
31 unsigned int *setspeed = policy->governor_data; in cpufreq_set()
33 pr_debug("cpufreq_set for cpu %u, freq %u kHz\n", policy->cpu, freq); in cpufreq_set()
36 if (!per_cpu(cpu_is_managed, policy->cpu)) in cpufreq_set()
41 ret = __cpufreq_driver_target(policy, freq, CPUFREQ_RELATION_L); in cpufreq_set()
47 static ssize_t show_speed(struct cpufreq_policy *policy, char *buf) in show_speed() argument
49 return sprintf(buf, "%u\n", policy->cur); in show_speed()
52 static int cpufreq_userspace_policy_init(struct cpufreq_policy *policy) in cpufreq_userspace_policy_init() argument
60 policy->governor_data = setspeed; in cpufreq_userspace_policy_init()
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| D | freq_table.c | 17 bool policy_has_boost_freq(struct cpufreq_policy *policy) in policy_has_boost_freq() argument
19 struct cpufreq_frequency_table *pos, *table = policy->freq_table; in policy_has_boost_freq()
32 int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy, in cpufreq_frequency_table_cpuinfo() argument
43 if ((!cpufreq_boost_enabled() || !policy->boost_enabled) in cpufreq_frequency_table_cpuinfo()
54 policy->min = policy->cpuinfo.min_freq = min_freq; in cpufreq_frequency_table_cpuinfo()
55 policy->max = max_freq; in cpufreq_frequency_table_cpuinfo()
60 if (policy->cpuinfo.max_freq < max_freq) in cpufreq_frequency_table_cpuinfo()
61 policy->max = policy->cpuinfo.max_freq = max_freq; in cpufreq_frequency_table_cpuinfo()
63 if (policy->min == ~0) in cpufreq_frequency_table_cpuinfo()
69 int cpufreq_frequency_table_verify(struct cpufreq_policy_data *policy, in cpufreq_frequency_table_verify() argument
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| D | cppc_cpufreq.c | 160 static void cppc_cpufreq_cpu_fie_init(struct cpufreq_policy *policy) in cppc_cpufreq_cpu_fie_init() argument
168 for_each_cpu(cpu, policy->cpus) { in cppc_cpufreq_cpu_fie_init()
171 cppc_fi->cpu_data = policy->driver_data; in cppc_cpufreq_cpu_fie_init()
190 topology_set_scale_freq_source(&cppc_sftd, policy->cpus); in cppc_cpufreq_cpu_fie_init()
194 * We free all the resources on policy's removal and not on CPU removal as the
199 * We just need to make sure to remove them all on policy->exit().
201 static void cppc_cpufreq_cpu_fie_exit(struct cpufreq_policy *policy) in cppc_cpufreq_cpu_fie_exit() argument
209 /* policy->cpus will be empty here, use related_cpus instead */ in cppc_cpufreq_cpu_fie_exit()
210 topology_clear_scale_freq_source(SCALE_FREQ_SOURCE_CPPC, policy->related_cpus); in cppc_cpufreq_cpu_fie_exit()
212 for_each_cpu(cpu, policy->related_cpus) { in cppc_cpufreq_cpu_fie_exit()
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| D | sh-cpufreq.c | 33 struct cpufreq_policy *policy; member
45 struct cpufreq_policy *policy = target->policy; in __sh_cpufreq_target() local
46 int cpu = policy->cpu; in __sh_cpufreq_target()
60 if (freq < (policy->min * 1000) || freq > (policy->max * 1000)) in __sh_cpufreq_target()
69 cpufreq_freq_transition_begin(target->policy, &freqs); in __sh_cpufreq_target()
71 cpufreq_freq_transition_end(target->policy, &freqs, 0); in __sh_cpufreq_target()
80 static int sh_cpufreq_target(struct cpufreq_policy *policy, in sh_cpufreq_target() argument
84 struct cpufreq_target data = { .policy = policy, .freq = target_freq }; in sh_cpufreq_target()
86 return work_on_cpu(policy->cpu, __sh_cpufreq_target, &data); in sh_cpufreq_target()
89 static int sh_cpufreq_verify(struct cpufreq_policy_data *policy) in sh_cpufreq_verify() argument
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| D | amd-pstate.c | 247 if (epp > 0 && cpudata->policy == CPUFREQ_POLICY_PERFORMANCE) { in amd_pstate_set_energy_pref_index()
248 pr_debug("EPP cannot be set under performance policy\n"); in amd_pstate_set_energy_pref_index()
495 static int amd_pstate_verify(struct cpufreq_policy_data *policy) in amd_pstate_verify() argument
497 cpufreq_verify_within_cpu_limits(policy); in amd_pstate_verify()
502 static int amd_pstate_update_min_max_limit(struct cpufreq_policy *policy) in amd_pstate_update_min_max_limit() argument
505 struct amd_cpudata *cpudata = policy->driver_data; in amd_pstate_update_min_max_limit()
507 max_limit_perf = div_u64(policy->max * cpudata->highest_perf, cpudata->max_freq); in amd_pstate_update_min_max_limit()
508 min_limit_perf = div_u64(policy->min * cpudata->highest_perf, cpudata->max_freq); in amd_pstate_update_min_max_limit()
512 WRITE_ONCE(cpudata->max_limit_freq, policy->max); in amd_pstate_update_min_max_limit()
513 WRITE_ONCE(cpudata->min_limit_freq, policy->min); in amd_pstate_update_min_max_limit()
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| /kernel/linux/linux-5.10/drivers/cpufreq/ |
| D | cpufreq.c | 79 static unsigned int __cpufreq_get(struct cpufreq_policy *policy);
80 static int cpufreq_init_governor(struct cpufreq_policy *policy);
81 static void cpufreq_exit_governor(struct cpufreq_policy *policy);
82 static void cpufreq_governor_limits(struct cpufreq_policy *policy);
83 static int cpufreq_set_policy(struct cpufreq_policy *policy,
88 * Two notifier lists: the "policy" list is involved in the
89 * validation process for a new CPU frequency policy; the
116 struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy) in get_governor_parent_kobj() argument
119 return &policy->kobj; in get_governor_parent_kobj()
168 * - policy->cpus with all possible CPUs
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| D | cpufreq_userspace.c | 23 * @policy: pointer to policy struct where freq is being set
28 static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq) in cpufreq_set() argument
31 unsigned int *setspeed = policy->governor_data; in cpufreq_set()
33 pr_debug("cpufreq_set for cpu %u, freq %u kHz\n", policy->cpu, freq); in cpufreq_set()
36 if (!per_cpu(cpu_is_managed, policy->cpu)) in cpufreq_set()
41 ret = __cpufreq_driver_target(policy, freq, CPUFREQ_RELATION_L); in cpufreq_set()
47 static ssize_t show_speed(struct cpufreq_policy *policy, char *buf) in show_speed() argument
49 return sprintf(buf, "%u\n", policy->cur); in show_speed()
52 static int cpufreq_userspace_policy_init(struct cpufreq_policy *policy) in cpufreq_userspace_policy_init() argument
60 policy->governor_data = setspeed; in cpufreq_userspace_policy_init()
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| D | freq_table.c | 17 bool policy_has_boost_freq(struct cpufreq_policy *policy) in policy_has_boost_freq() argument
19 struct cpufreq_frequency_table *pos, *table = policy->freq_table; in policy_has_boost_freq()
32 int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy, in cpufreq_frequency_table_cpuinfo() argument
54 policy->min = policy->cpuinfo.min_freq = min_freq; in cpufreq_frequency_table_cpuinfo()
55 policy->max = max_freq; in cpufreq_frequency_table_cpuinfo()
60 if (policy->cpuinfo.max_freq < max_freq) in cpufreq_frequency_table_cpuinfo()
61 policy->max = policy->cpuinfo.max_freq = max_freq; in cpufreq_frequency_table_cpuinfo()
63 if (policy->min == ~0) in cpufreq_frequency_table_cpuinfo()
69 int cpufreq_frequency_table_verify(struct cpufreq_policy_data *policy, in cpufreq_frequency_table_verify() argument
76 pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n", in cpufreq_frequency_table_verify()
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| D | sh-cpufreq.c | 34 struct cpufreq_policy *policy; member
46 struct cpufreq_policy *policy = target->policy; in __sh_cpufreq_target() local
47 int cpu = policy->cpu; in __sh_cpufreq_target()
61 if (freq < (policy->min * 1000) || freq > (policy->max * 1000)) in __sh_cpufreq_target()
70 cpufreq_freq_transition_begin(target->policy, &freqs); in __sh_cpufreq_target()
72 cpufreq_freq_transition_end(target->policy, &freqs, 0); in __sh_cpufreq_target()
81 static int sh_cpufreq_target(struct cpufreq_policy *policy, in sh_cpufreq_target() argument
85 struct cpufreq_target data = { .policy = policy, .freq = target_freq }; in sh_cpufreq_target()
87 return work_on_cpu(policy->cpu, __sh_cpufreq_target, &data); in sh_cpufreq_target()
90 static int sh_cpufreq_verify(struct cpufreq_policy_data *policy) in sh_cpufreq_verify() argument
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| D | longrun.c | 29 * longrun_get_policy - get the current LongRun policy
30 * @policy: struct cpufreq_policy where current policy is written into
32 * Reads the current LongRun policy by access to MSR_TMTA_LONGRUN_FLAGS
35 static void longrun_get_policy(struct cpufreq_policy *policy) in longrun_get_policy() argument
42 policy->policy = CPUFREQ_POLICY_PERFORMANCE; in longrun_get_policy()
44 policy->policy = CPUFREQ_POLICY_POWERSAVE; in longrun_get_policy()
53 policy->min = policy->max = longrun_high_freq; in longrun_get_policy()
55 policy->min = longrun_low_freq + msr_lo * in longrun_get_policy()
57 policy->max = longrun_low_freq + msr_hi * in longrun_get_policy()
60 policy->cpu = 0; in longrun_get_policy()
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| /kernel/linux/linux-6.6/Documentation/admin-guide/mm/ |
| D | numa_memory_policy.rst | 2 NUMA Memory Policy
5 What is NUMA Memory Policy?
8 In the Linux kernel, "memory policy" determines from which node the kernel will
11 The current memory policy support was added to Linux 2.6 around May 2004. This
12 document attempts to describe the concepts and APIs of the 2.6 memory policy
24 Memory Policy Concepts
30 The Linux kernel supports _scopes_ of memory policy, described here from
33 System Default Policy
34 this policy is "hard coded" into the kernel. It is the policy
36 one of the more specific policy scopes discussed below. When
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| /kernel/linux/linux-5.10/Documentation/admin-guide/mm/ |
| D | numa_memory_policy.rst | 4 NUMA Memory Policy
7 What is NUMA Memory Policy?
10 In the Linux kernel, "memory policy" determines from which node the kernel will
13 The current memory policy support was added to Linux 2.6 around May 2004. This
14 document attempts to describe the concepts and APIs of the 2.6 memory policy
26 Memory Policy Concepts
32 The Linux kernel supports _scopes_ of memory policy, described here from
35 System Default Policy
36 this policy is "hard coded" into the kernel. It is the policy
38 one of the more specific policy scopes discussed below. When
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| /kernel/linux/linux-5.10/fs/crypto/ |
| D | policy.c | 3 * Encryption policy functions for per-file encryption support.
10 * Modified by Eric Biggers, 2019 for v2 policy support.
21 * @policy1: the first policy
22 * @policy2: the second policy
80 static bool supported_iv_ino_lblk_policy(const struct fscrypt_policy_v2 *policy, in supported_iv_ino_lblk_policy() argument
95 if (policy->contents_encryption_mode != FSCRYPT_MODE_AES_256_XTS) { in supported_iv_ino_lblk_policy()
97 "Can't use %s policy with contents mode other than AES-256-XTS", in supported_iv_ino_lblk_policy()
109 "Can't use %s policy on filesystem '%s' because it doesn't have stable inode numbers", in supported_iv_ino_lblk_policy()
117 "Can't use %s policy on filesystem '%s' because its inode numbers are too long", in supported_iv_ino_lblk_policy()
123 "Can't use %s policy on filesystem '%s' because its block numbers are too long", in supported_iv_ino_lblk_policy()
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| /kernel/linux/linux-6.6/fs/crypto/ |
| D | policy.c | 3 * Encryption policy functions for per-file encryption support.
10 * Modified by Eric Biggers, 2019 for v2 policy support.
22 * @policy1: the first policy
23 * @policy2: the second policy
36 int fscrypt_policy_to_key_spec(const union fscrypt_policy *policy, in fscrypt_policy_to_key_spec() argument
39 switch (policy->version) { in fscrypt_policy_to_key_spec()
42 memcpy(key_spec->u.descriptor, policy->v1.master_key_descriptor, in fscrypt_policy_to_key_spec()
47 memcpy(key_spec->u.identifier, policy->v2.master_key_identifier, in fscrypt_policy_to_key_spec()
120 static bool supported_iv_ino_lblk_policy(const struct fscrypt_policy_v2 *policy, in supported_iv_ino_lblk_policy() argument
135 if (policy->contents_encryption_mode != FSCRYPT_MODE_AES_256_XTS) { in supported_iv_ino_lblk_policy()
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| /kernel/linux/linux-5.10/include/linux/ |
| D | cpufreq.h | 59 unsigned int cpu; /* cpu managing this policy, must be online */
68 unsigned int restore_freq; /* = policy->cur before transition */
71 unsigned int policy; /* see above */ member
72 unsigned int last_policy; /* policy before unplug */
93 * - Any routine that wants to read from the policy structure will
95 * - Any routine that will write to the policy structure and/or may take away
96 * the policy altogether (eg. CPU hotplug), will hold this lock in write
105 * policy and that the change will affect all of the policy CPUs then.
120 * the driver to set the frequency for this policy. To be set by the
158 * Used for passing new cpufreq policy data to the cpufreq driver's ->verify()
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| /kernel/linux/linux-6.6/include/linux/ |
| D | cpufreq.h | 63 unsigned int cpu; /* cpu managing this policy, must be online */
74 unsigned int policy; /* see above */ member
75 unsigned int last_policy; /* policy before unplug */
96 * - Any routine that wants to read from the policy structure will
98 * - Any routine that will write to the policy structure and/or may take away
99 * the policy altogether (eg. CPU hotplug), will hold this lock in write
108 * policy and that the change will affect all of the policy CPUs then.
130 * the driver to set the frequency for this policy. To be set by the
144 /* Per policy boost enabled flag. */
171 * Used for passing new cpufreq policy data to the cpufreq driver's ->verify()
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| /kernel/linux/linux-5.10/net/netlink/ |
| D | policy.c | 3 * NETLINK Policy advertisement to userspace
22 const struct nla_policy *policy; member
28 const struct nla_policy *policy, in add_policy() argument
34 if (!policy || !maxtype) in add_policy()
38 if (state->policies[i].policy == policy && in add_policy()
42 if (!state->policies[i].policy) { in add_policy()
43 state->policies[i].policy = policy; in add_policy()
58 state->policies[state->n_alloc].policy = policy; in add_policy()
67 * netlink_policy_dump_get_policy_idx - retrieve policy index
68 * @state: the policy dump state
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| /kernel/linux/linux-6.6/net/netlink/ |
| D | policy.c | 3 * NETLINK Policy advertisement to userspace
22 const struct nla_policy *policy; member
28 const struct nla_policy *policy, in add_policy() argument
34 if (!policy || !maxtype) in add_policy()
38 if (state->policies[i].policy == policy && in add_policy()
42 if (!state->policies[i].policy) { in add_policy()
43 state->policies[i].policy = policy; in add_policy()
58 state->policies[state->n_alloc].policy = policy; in add_policy()
67 * netlink_policy_dump_get_policy_idx - retrieve policy index
68 * @state: the policy dump state
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| /kernel/linux/linux-5.10/tools/perf/Documentation/ |
| D | security.txt | 13 Targeted policy with perf_event_open() access control capabilities:
15 1. Download selinux-policy SRPM package (e.g. selinux-policy-3.14.4-48.fc31.src.rpm on FC31)
18 # rpm -Uhv selinux-policy-3.14.4-48.fc31.src.rpm
22 # rpmbuild -bp selinux-policy.spec
24 3. Place patch below at rpmbuild/BUILD/selinux-policy-b86eaaf4dbcf2d51dd4432df7185c0eaf3cbcc02
27 # patch -p1 < selinux-policy-perf-events-perfmon.patch
28 patching file policy/flask/access_vectors
29 patching file policy/flask/security_classes
30 # cat selinux-policy-perf-events-perfmon.patch
31 diff -Nura a/policy/flask/access_vectors b/policy/flask/access_vectors
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| /kernel/linux/linux-6.6/tools/perf/Documentation/ |
| D | security.txt | 13 Targeted policy with perf_event_open() access control capabilities:
15 1. Download selinux-policy SRPM package (e.g. selinux-policy-3.14.4-48.fc31.src.rpm on FC31)
18 # rpm -Uhv selinux-policy-3.14.4-48.fc31.src.rpm
22 # rpmbuild -bp selinux-policy.spec
24 3. Place patch below at rpmbuild/BUILD/selinux-policy-b86eaaf4dbcf2d51dd4432df7185c0eaf3cbcc02
27 # patch -p1 < selinux-policy-perf-events-perfmon.patch
28 patching file policy/flask/access_vectors
29 patching file policy/flask/security_classes
30 # cat selinux-policy-perf-events-perfmon.patch
31 diff -Nura a/policy/flask/access_vectors b/policy/flask/access_vectors
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| /kernel/linux/linux-6.6/drivers/hwtracing/stm/ |
| D | policy.c | 3 * System Trace Module (STM) master/channel allocation policy management
6 * A master/channel allocation policy allows mapping string identifiers to
21 * STP Master/Channel allocation policy configfs layout.
31 struct stp_policy *policy; member
110 stm = policy_node->policy->stm; in stp_policy_node_masters_store()
157 stm = policy_node->policy->stm; in stp_policy_node_channels_store()
228 struct stp_policy *policy; in stp_policy_node_make() local
231 policy = container_of(group, struct stp_policy, group); in stp_policy_node_make()
235 policy = parent_node->policy; in stp_policy_node_make()
238 if (!policy->stm) in stp_policy_node_make()
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| /kernel/linux/linux-5.10/drivers/hwtracing/stm/ |
| D | policy.c | 3 * System Trace Module (STM) master/channel allocation policy management
6 * A master/channel allocation policy allows mapping string identifiers to
21 * STP Master/Channel allocation policy configfs layout.
31 struct stp_policy *policy; member
115 stm = policy_node->policy->stm; in stp_policy_node_masters_store()
162 stm = policy_node->policy->stm; in stp_policy_node_channels_store()
233 struct stp_policy *policy; in stp_policy_node_make() local
236 policy = container_of(group, struct stp_policy, group); in stp_policy_node_make()
240 policy = parent_node->policy; in stp_policy_node_make()
243 if (!policy->stm) in stp_policy_node_make()
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| /kernel/linux/linux-5.10/Documentation/cpu-freq/ |
| D | cpu-drivers.rst | 48 .init - A pointer to the per-policy initialization function.
71 .exit - A pointer to a per-policy cleanup function called during
74 .stop_cpu - A pointer to a per-policy stop function called during
77 .suspend - A pointer to a per-policy suspend function which is called
79 policy.
81 .resume - A pointer to a per-policy resume function which is called
84 .ready - A pointer to a per-policy ready function which is called after
85 the policy is fully initialized.
92 .set_boost - A pointer to a per-policy function to enable/disable boost
100 cpufreq driver registers itself, the per-policy initialization function
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| /kernel/linux/linux-6.6/Documentation/cpu-freq/ |
| D | cpu-drivers.rst | 48 .init - A pointer to the per-policy initialization function.
68 .exit - A pointer to a per-policy cleanup function called during
71 .suspend - A pointer to a per-policy suspend function which is called
73 policy.
75 .resume - A pointer to a per-policy resume function which is called
78 .ready - A pointer to a per-policy ready function which is called after
79 the policy is fully initialized.
86 .set_boost - A pointer to a per-policy function to enable/disable boost
94 cpufreq driver registers itself, the per-policy initialization function
95 cpufreq_driver.init is called if no cpufreq policy existed for the CPU.
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