| /kernel/linux/linux-5.10/arch/h8300/lib/ |
| D | mulsi3.S | 9 ; 16b * 16b = 372 states (worst case)
10 ; 32b * 32b = 724 states (worst case)
14 ; 16b * 16b = 48 states
15 ; 16b * 32b = 72 states
16 ; 32b * 32b = 92 states
21 mov.w r1,r2 ; ( 2 states) b * d
22 mulxu r0,er2 ; (22 states)
24 mov.w e0,r3 ; ( 2 states) a * d
25 beq L_skip1 ; ( 4 states)
26 mulxu r1,er3 ; (22 states)
[all …]
|
| /kernel/linux/linux-5.10/Documentation/admin-guide/pm/ |
| 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 :doc:`cpuidle`),
57 ``intel_idle`` can use two sources of information: static tables of idle states
68 states, ``intel_idle`` first looks for a ``_CST`` object under one of the ACPI
71 ``CPUIdle`` subsystem expects that the list of idle states supplied by the
[all …]
|
| 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.
|
| 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
[all …]
|
| /kernel/linux/linux-6.6/Documentation/admin-guide/pm/ |
| 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
[all …]
|
| 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.
|
| 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
[all …]
|
| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/arm/ |
| D | idle-states.yaml | 4 $id: http://devicetree.org/schemas/arm/idle-states.yaml#
7 title: ARM idle states binding description
18 where cores can be put in different low-power states (ranging from simple wfi
19 to power gating) according to OS PM policies. The CPU states representing the
20 range of dynamic idle states that a processor can enter at run-time, can be
22 enter/exit specific idle states on a given processor.
25 power states an ARM CPU can be put into are identified by the following list:
33 The power states described in the SBSA document define the basic CPU states on
35 PM implementation to put the processor in different idle states (which include
36 states listed above; "off" state is not an idle state since it does not have
[all …]
|
| /kernel/linux/linux-6.6/drivers/cpuidle/ |
| 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
[all …]
|
| 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()
[all …]
|
| 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()
[all …]
|
| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/cpu/ |
| 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
[all …]
|
| /kernel/linux/linux-5.10/drivers/cpuidle/governors/ |
| D | teo.c | 11 * wakeups from idle states. Moreover, information about what happened in the
15 * which of the shallower idle states to choose.
98 * @states: Idle states data corresponding to this CPU.
105 struct teo_idle_state states[CPUIDLE_STATE_MAX]; member
131 u64 lat_ns = drv->states[dev->last_state_idx].exit_latency_ns; in teo_update()
154 * Decay the "early hits" metric for all of the states and find the in teo_update()
155 * states matching the sleep length and the measured idle duration. in teo_update()
158 unsigned int early_hits = cpu_data->states[i].early_hits; in teo_update()
160 cpu_data->states[i].early_hits -= early_hits >> DECAY_SHIFT; in teo_update()
162 if (drv->states[i].target_residency_ns <= cpu_data->sleep_length_ns) { in teo_update()
[all …]
|
| /kernel/linux/linux-5.10/drivers/regulator/ |
| 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()
[all …]
|
| /kernel/linux/linux-5.10/drivers/cpuidle/ |
| D | cpuidle-psci-domain.c | 34 struct genpd_power_state *state = &pd->states[pd->state_idx]; in psci_pd_power_off()
50 static int psci_pd_parse_state_nodes(struct genpd_power_state *states, in psci_pd_parse_state_nodes() argument
57 ret = psci_dt_parse_state_node(to_of_node(states[i].fwnode), in psci_pd_parse_state_nodes()
68 states[i].data = psci_state_buf; in psci_pd_parse_state_nodes()
76 kfree(states[i].data); in psci_pd_parse_state_nodes()
81 struct genpd_power_state **states, int *state_count) in psci_pd_parse_states() argument
85 /* Parse the domain idle states. */ in psci_pd_parse_states()
86 ret = of_genpd_parse_idle_states(np, states, state_count); in psci_pd_parse_states()
91 ret = psci_pd_parse_state_nodes(*states, *state_count); in psci_pd_parse_states()
93 kfree(*states); in psci_pd_parse_states()
[all …]
|
| D | dt_idle_states.c | 3 * DT idle states parsing code.
9 #define pr_fmt(fmt) "DT idle-states: " fmt
63 * latencies as defined in idle states bindings in init_state_node()
128 * dt_init_idle_driver() - Parse the DT idle states and initialize the
129 * idle driver states array
143 * If DT idle states are detected and are valid the state count and states
147 * Return: number of valid DT idle states parsed, <0 on failure
163 * We get the idle states for the first logical cpu in the in dt_init_idle_driver()
195 pr_warn("State index reached static CPU idle driver states array size\n"); in dt_init_idle_driver()
199 idle_state = &drv->states[state_idx++]; in dt_init_idle_driver()
[all …]
|
| /kernel/linux/linux-6.6/tools/power/cpupower/man/ |
| 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.
|
| /kernel/linux/linux-5.10/tools/power/cpupower/man/ |
| 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.
|
| /kernel/linux/linux-6.6/drivers/regulator/ |
| 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()
[all …]
|
| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/powerpc/opal/ |
| 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 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.
[all …]
|
| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/powerpc/opal/ |
| 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.
[all …]
|
| /kernel/linux/linux-5.10/Documentation/ABI/testing/ |
| 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,
[all …]
|
| /kernel/linux/linux-6.6/Documentation/ABI/testing/ |
| 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,
[all …]
|
| /kernel/linux/linux-6.6/tools/verification/dot2/ |
| D | automata.py | 26 self.states, self.initial_state, self.final_states = self.__get_state_variables()
80 states = []
96 states.append(state)
107 states = sorted(set(states))
108 states.remove(initial_state)
110 # Insert the initial state at the bein og the states
111 states.insert(0, initial_state)
116 return states, initial_state, final_states
145 states = self.states
154 for state in states:
|
| /kernel/linux/linux-6.6/drivers/acpi/ |
| D | processor_idle.c | 137 * Check, if one of the previous states already marked the lapic in lapic_timer_check_state()
167 return cx - pr->power.states >= pr->power.timer_broadcast_on_state; in lapic_timer_needs_broadcast()
195 * C/P/S0/S1 states when this bit is set. in tsc_check_state()
217 pr->power.states[ACPI_STATE_C2].type = ACPI_STATE_C2; in acpi_processor_get_power_info_fadt()
218 pr->power.states[ACPI_STATE_C3].type = ACPI_STATE_C3; in acpi_processor_get_power_info_fadt()
231 pr->power.states[ACPI_STATE_C2].address = pr->pblk + 4; in acpi_processor_get_power_info_fadt()
232 pr->power.states[ACPI_STATE_C3].address = pr->pblk + 5; in acpi_processor_get_power_info_fadt()
235 pr->power.states[ACPI_STATE_C2].latency = acpi_gbl_FADT.c2_latency; in acpi_processor_get_power_info_fadt()
236 pr->power.states[ACPI_STATE_C3].latency = acpi_gbl_FADT.c3_latency; in acpi_processor_get_power_info_fadt()
246 pr->power.states[ACPI_STATE_C2].address = 0; in acpi_processor_get_power_info_fadt()
[all …]
|