| /openbmc/linux/Documentation/admin-guide/pm/ |
| H A D | intel_idle.rst | 28 processor's functional blocks into low-power states. That instruction takes two
42 .. _intel-idle-enumeration-of-states:
44 Enumeration of Idle States
50 as C-states (in the ACPI terminology) or idle states. The list of meaningful
51 ``MWAIT`` hint values and idle states (i.e. low-power configurations of the
55 In order to create a list of available idle states required by the ``CPUIdle``
56 subsystem (see :ref:`idle-states-representation` in
58 ``intel_idle`` can use two sources of information: static tables of idle states
69 states, ``intel_idle`` first looks for a ``_CST`` object under one of the ACPI
72 ``CPUIdle`` subsystem expects that the list of idle states supplied by the
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| H A D | strategies.rst | 15 One of them is based on using global low-power states of the whole system in
17 significantly reduced, referred to as :doc:`sleep states <sleep-states>`. The
18 kernel puts the system into one of these states when requested by user space
21 user space code can run. Because sleep states are global and the whole system
26 <working-state>`, is based on adjusting the power states of individual hardware
30 a metastate covering a range of different power states of the system in which
32 ``inactive`` (idle). If they are active, they have to be in power states
34 are inactive, ideally, they should be in low-power states in which they may not
43 for the same system in a sleep state. However, transitions from sleep states
47 sleep states than when they are runtime idle most of the time.
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| H A D | intel_pstate.rst | 27 information about that). For this reason, the representation of P-states used
32 ``intel_pstate`` maps its internal representation of P-states to frequencies too
69 hardware-managed P-states (HWP) support. If it works in this mode, the
89 depends on whether or not the hardware-managed P-states (HWP) feature has been
106 select P-states by itself, but still it can give hints to the processor's
130 Also, in this configuration the range of P-states available to the processor's
182 registers of the CPU. It generally selects P-states proportional to the
199 hardware-managed P-states (HWP) support. It is always used if the
223 the entire range of available P-states is exposed by ``intel_pstate`` to the
232 Turbo P-states Support
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| /openbmc/pldm/configurations/pdr/com.ibm.Hardware.Chassis.Model.Everest/ |
| H A D | 4.json | 15 "states": [1, 2] array
40 "states": [1, 2] array
59 "states": [1, 2] array
78 "states": [1, 2] array
97 "states": [1, 2] array
116 "states": [1, 2] array
135 "states": [1, 2] array
154 "states": [1, 2] array
173 "states": [1, 2] array
192 "states": [1, 2] array
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| H A D | 11.json | 15 "states": [1, 2] array
34 "states": [1, 2] array
53 "states": [1, 2] array
72 "states": [1, 2] array
91 "states": [1, 2] array
110 "states": [1, 2] array
129 "states": [1, 2] array
148 "states": [1, 2] array
167 "states": [1, 2] array
186 "states": [1, 2] array
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| /openbmc/pldm/configurations/pdr/com.ibm.Hardware.Chassis.Model.Rainier4U/ |
| H A D | 4.json | 15 "states": [1, 2] array
40 "states": [1, 2] array
59 "states": [1, 2] array
78 "states": [1, 2] array
97 "states": [1, 2] array
116 "states": [1, 2] array
135 "states": [1, 2] array
154 "states": [1, 2] array
173 "states": [1, 2] array
192 "states": [1, 2] array
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| H A D | 11.json | 15 "states": [1, 2] array
34 "states": [1, 2] array
53 "states": [1, 2] array
72 "states": [1, 2] array
91 "states": [1, 2] array
110 "states": [1, 2] array
129 "states": [1, 2] array
148 "states": [1, 2] array
167 "states": [1, 2] array
186 "states": [1, 2] array
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| /openbmc/pldm/configurations/pdr/com.ibm.Hardware.Chassis.Model.Rainier2U/ |
| H A D | 4.json | 15 "states": [1, 2] array
40 "states": [1, 2] array
59 "states": [1, 2] array
78 "states": [1, 2] array
97 "states": [1, 2] array
116 "states": [1, 2] array
135 "states": [1, 2] array
154 "states": [1, 2] array
173 "states": [1, 2] array
192 "states": [1, 2] array
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| H A D | 11.json | 15 "states": [1, 2] array
34 "states": [1, 2] array
53 "states": [1, 2] array
72 "states": [1, 2] array
91 "states": [1, 2] array
110 "states": [1, 2] array
129 "states": [1, 2] array
148 "states": [1, 2] array
167 "states": [1, 2] array
186 "states": [1, 2] array
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| /openbmc/pldm/configurations/pdr/com.ibm.Hardware.Chassis.Model.Rainier1S4U/ |
| H A D | 4.json | 15 "states": [1, 2] array
40 "states": [1, 2] array
59 "states": [1, 2] array
78 "states": [1, 2] array
97 "states": [1, 2] array
116 "states": [1, 2] array
135 "states": [1, 2] array
154 "states": [1, 2] array
173 "states": [1, 2] array
192 "states": [1, 2] array
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| H A D | 11.json | 15 "states": [1, 2] array
34 "states": [1, 2] array
53 "states": [1, 2] array
72 "states": [1, 2] array
91 "states": [1, 2] array
110 "states": [1, 2] array
129 "states": [1, 2] array
148 "states": [1, 2] array
167 "states": [1, 2] array
186 "states": [1, 2] array
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| /openbmc/linux/drivers/cpuidle/ |
| H A D | dt_idle_genpd.c | 26 struct genpd_power_state *states, int state_count) in pd_parse_state_nodes() argument
32 ret = parse_state(to_of_node(states[i].fwnode), &state); in pd_parse_state_nodes()
42 states[i].data = state_buf; in pd_parse_state_nodes()
50 kfree(states[i].data); in pd_parse_state_nodes()
56 struct genpd_power_state **states, in pd_parse_states() argument
61 /* Parse the domain idle states. */ in pd_parse_states()
62 ret = of_genpd_parse_idle_states(np, states, state_count); in pd_parse_states()
67 ret = pd_parse_state_nodes(parse_state, *states, *state_count); in pd_parse_states()
69 kfree(*states); in pd_parse_states()
74 static void pd_free_states(struct genpd_power_state *states, in pd_free_states() argument
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| H A D | cpuidle-riscv-sbi.c | 33 u32 *states; member
100 u32 *states = __this_cpu_read(sbi_cpuidle_data.states); in sbi_cpuidle_enter_state() local
101 u32 state = states[idx]; in sbi_cpuidle_enter_state()
115 u32 *states = data->states; in __sbi_enter_domain_idle_state() local
135 state = states[idx]; in __sbi_enter_domain_idle_state()
252 * of a shared state for the domain, assumes the domain states are all in sbi_dt_cpu_init_topology()
253 * deeper states. in sbi_dt_cpu_init_topology()
255 drv->states[state_count - 1].flags |= CPUIDLE_FLAG_RCU_IDLE; in sbi_dt_cpu_init_topology()
256 drv->states[state_count - 1].enter = sbi_enter_domain_idle_state; in sbi_dt_cpu_init_topology()
257 drv->states[state_count - 1].enter_s2idle = in sbi_dt_cpu_init_topology()
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| H A D | dt_idle_states.c | 3 * DT idle states parsing code.
9 #define pr_fmt(fmt) "DT idle-states: " fmt
62 * latencies as defined in idle states bindings in init_state_node()
127 * dt_init_idle_driver() - Parse the DT idle states and initialize the
128 * idle driver states array
142 * If DT idle states are detected and are valid the state count and states
146 * Return: number of valid DT idle states parsed, <0 on failure
162 * We get the idle states for the first logical cpu in the in dt_init_idle_driver()
194 pr_warn("State index reached static CPU idle driver states array size\n"); in dt_init_idle_driver()
198 idle_state = &drv->states[state_idx++]; in dt_init_idle_driver()
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| /openbmc/linux/Documentation/devicetree/bindings/cpu/ |
| H A D | idle-states.yaml | 4 $id: http://devicetree.org/schemas/cpu/idle-states.yaml#
7 title: Idle states
19 dynamically, where cores can be put in different low-power states (ranging
20 from simple wfi to power gating) according to OS PM policies. The CPU states
21 representing the range of dynamic idle states that a processor can enter at
23 parameters required to enter/exit specific idle states on a given processor.
26 2 - ARM idle states
30 power states an ARM CPU can be put into are identified by the following list:
38 The power states described in the SBSA document define the basic CPU states on
40 PM implementation to put the processor in different idle states (which include
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| /openbmc/linux/tools/power/cpupower/man/ |
| H A D | cpupower-idle-set.1 | 12 sleep states. This can be handy for power vs performance tuning.
23 Disable all idle states with a equal or higher latency than <LATENCY>.
25 Enable all idle states with a latency lower than <LATENCY>.
28 Enable all idle states if not enabled already.
32 Cpuidle Governors Policy on Disabling Sleep States
36 how to choose sleep states, subsequent sleep states on this core, might get
46 then all deeper states are disabled as well. Likewise, if one enables a
53 If criteria are not met to enter deeper sleep states and the lightest sleep
63 By default processor sleep states of all CPU cores are set. Please refer
65 C-states of specific cores.
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| /openbmc/linux/drivers/regulator/ |
| H A D | gpio-regulator.c | 39 struct gpio_regulator_state *states; member
51 if (data->states[ptr].gpios == data->state) in gpio_regulator_get_value()
52 return data->states[ptr].value; in gpio_regulator_get_value()
65 if (data->states[ptr].value < best_val && in gpio_regulator_set_voltage()
66 data->states[ptr].value >= min_uV && in gpio_regulator_set_voltage()
67 data->states[ptr].value <= max_uV) { in gpio_regulator_set_voltage()
68 target = data->states[ptr].gpios; in gpio_regulator_set_voltage()
69 best_val = data->states[ptr].value; in gpio_regulator_set_voltage()
94 return data->states[selector].value; in gpio_regulator_list_voltage()
104 if (data->states[ptr].value > best_val && in gpio_regulator_set_current_limit()
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| /openbmc/pldm/libpldmresponder/ |
| H A D | platform_state_effecter.hpp | 9 #include <libpldm/states.h>
32 * @param[in] stateField - The state field data for each of the states,
34 * @return - Success or failure in setting the states. Returns failure in
46 state_effecter_possible_states* states = nullptr; in setStateEffecterStatesHandler() local
79 states = reinterpret_cast<state_effecter_possible_states*>( in setStateEffecterStatesHandler()
119 if (states->possible_states_size < bitfieldIndex || in setStateEffecterStatesHandler()
120 !(states->states[bitfieldIndex].byte & (1 << bit))) in setStateEffecterStatesHandler()
154 reinterpret_cast<uint8_t*>(states) + in setStateEffecterStatesHandler()
156 sizeof(states->states) + in setStateEffecterStatesHandler()
157 (states->possible_states_size * sizeof(states->states)); in setStateEffecterStatesHandler()
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| /openbmc/pldm/configurations/pdr/com.ibm.Hardware.Chassis.Model.Bonnell/ |
| H A D | 11.json | 15 "states": [1, 2] array
34 "states": [1, 2] array
53 "states": [1, 2] array
72 "states": [1, 2] array
91 "states": [1, 2] array
110 "states": [1, 2] array
129 "states": [1, 2] array
148 "states": [1, 2] array
169 "states": [1, 2] array
188 "states": [1, 2] array
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| H A D | 4.json | 15 "states": [1, 2] array
40 "states": [1, 2] array
59 "states": [1, 2] array
78 "states": [1, 2] array
97 "states": [1, 2] array
116 "states": [1, 2] array
135 "states": [1, 2] array
154 "states": [1, 2] array
173 "states": [1, 2] array
194 "states": [1, 2] array
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| /openbmc/linux/Documentation/devicetree/bindings/powerpc/opal/ |
| H A D | power-mgt.txt | 5 idle states. The description of these idle states is exposed via the
14 - flags: indicating some aspects of this idle states such as the
16 idle states and so on. The flag bits are as follows:
27 The following properties provide details about the idle states. These
32 If idle-states are defined, then the properties
38 Array of strings containing the names of the idle states.
42 flags associated with the aforementioned idle-states. The
62 exit-latencies (in ns) for the idle states in
67 target-residency (in ns) for the idle states in
75 PSSCR for each of the idle states in ibm,cpu-idle-state-names.
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| /openbmc/pldm/libpldmresponder/test/ |
| H A D | libpldmresponder_pdr_effecter_test.cpp | 64 state_effecter_possible_states* states = in TEST() local
66 ASSERT_EQ(states->state_set_id, 196); in TEST()
67 ASSERT_EQ(states->possible_states_size, 1); in TEST()
70 ASSERT_EQ(states->states[0].byte, bf1.byte); in TEST()
96 states = in TEST()
98 ASSERT_EQ(states->state_set_id, 197); in TEST()
99 ASSERT_EQ(states->possible_states_size, 1); in TEST()
101 ASSERT_EQ(states->states[0].byte, bf1.byte); in TEST()
102 states = reinterpret_cast<state_effecter_possible_states*>( in TEST()
104 ASSERT_EQ(states->state_set_id, 198); in TEST()
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| /openbmc/linux/Documentation/ABI/testing/ |
| H A D | sysfs-devices-power | 15 from sleep states, such as the memory sleep state (suspend to
33 be enabled to wake up the system from sleep states.
87 the system from sleep states, this attribute is not present.
89 states, this attribute is empty.
99 system from sleep states, this attribute is not present. If
101 states, this attribute is empty.
111 is not capable to wake up the system from sleep states, this
113 up the system from sleep states, this attribute is empty.
123 from sleep states, this attribute is not present. If the
124 device is not enabled to wake up the system from sleep states,
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| /openbmc/libpldm/include/libpldm/ |
| H A D | state_set.h | 138 /* @brief List of states for the Health State state set (ID 1).
153 /* @brief List of states for the State Set Availability (ID 2),
159 /* @brief List of states for the Operational Stress status (ID 9).
165 /* @brief List of states for Operational Fault status (ID 10).
173 /* @brief List of states for the Operational Running Status state set (ID 11).
184 /* @brief List of states for the Set Identify state (ID 17).
191 /* @brief List of states for the Set Thermal Trip state set (ID 21).
198 /* @brief List of states for the Set Link state (ID 33).
205 /* @brief List of states for the Software-related state set (ID 129).
218 /* @brief List of states for the Boot Restart Cause state set (ID 192).
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| /openbmc/pldm/oem/ibm/test/ |
| H A D | libpldmresponder_oem_platform_test.cpp | 270 state_effecter_possible_states* states = in TEST() local
272 ASSERT_EQ(states->state_set_id, 32769); in TEST()
273 ASSERT_EQ(states->possible_states_size, 2); in TEST()
276 ASSERT_EQ(states->states[0].byte, bf1.byte); in TEST()
297 states = in TEST()
299 ASSERT_EQ(states->state_set_id, 32769); in TEST()
300 ASSERT_EQ(states->possible_states_size, 2); in TEST()
303 ASSERT_EQ(states->states[0].byte, bf2.byte); in TEST()
324 states = in TEST()
326 ASSERT_EQ(states->state_set_id, 32768); in TEST()
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