projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 4f86d3a8 | 1 | |
| d6f346f2 | 2 | menuconfig CPU_IDLE |
| 4f86d3a8 | 3 | bool "CPU idle PM support" |
| aa491ad3 | 4 | default y if ACPI || PPC_PSERIES |
| d6f346f2 DL |
5 | select CPU_IDLE_GOV_LADDER if (!NO_HZ && !NO_HZ_IDLE) |
| 6 | select CPU_IDLE_GOV_MENU if (NO_HZ || NO_HZ_IDLE) | |
| 4f86d3a8 LB |
7 | help |
| 8 | CPU idle is a generic framework for supporting software-controlled | |
| 9 | idle processor power management. It includes modular cross-platform | |
| 10 | governors that can be swapped during runtime. | |
| 11 | ||
| 60555e37 | 12 | If you're using an ACPI-enabled platform, you should say Y here. |
| 4f86d3a8 | 13 | |
| d6f346f2 DL |
14 | if CPU_IDLE |
| 15 | ||
| bf4d1b5d DL |
16 | config CPU_IDLE_MULTIPLE_DRIVERS |
| 17 | bool "Support multiple cpuidle drivers" | |
| bf4d1b5d DL |
18 | default n |
| 19 | help | |
| 20 | Allows the cpuidle framework to use different drivers for each CPU. | |
| 21 | This is useful if you have a system with different CPU latencies and | |
| 22 | states. If unsure say N. | |
| 23 | ||
| 4f86d3a8 | 24 | config CPU_IDLE_GOV_LADDER |
| d6f346f2 | 25 | bool "Ladder governor (for periodic timer tick)" |
| 4f86d3a8 LB |
26 | default y |
| 27 | ||
| 28 | config CPU_IDLE_GOV_MENU | |
| d6f346f2 | 29 | bool "Menu governor (for tickless system)" |
| 4f86d3a8 | 30 | default y |
| 4126c019 | 31 | |
| be6a98d3 RH |
32 | config CPU_IDLE_CALXEDA |
| 33 | bool "CPU Idle Driver for Calxeda processors" | |
| 34 | depends on ARCH_HIGHBANK | |
| 6eed846f | 35 | select ARM_CPU_SUSPEND |
| be6a98d3 RH |
36 | help |
| 37 | Select this to enable cpuidle on Calxeda processors. | |
| 38 | ||
| bd2a337a MS |
39 | config CPU_IDLE_ZYNQ |
| 40 | bool "CPU Idle Driver for Xilinx Zynq processors" | |
| 41 | depends on ARCH_ZYNQ | |
| 42 | help | |
| 43 | Select this to enable cpuidle on Xilinx Zynq processors. | |
| 44 | ||
| 14d2c34c LP |
45 | config CPU_IDLE_BIG_LITTLE |
| 46 | bool "Support for ARM big.LITTLE processors" | |
| 47 | depends on ARCH_VEXPRESS_TC2_PM | |
| 48 | select ARM_CPU_SUSPEND | |
| 49 | select CPU_IDLE_MULTIPLE_DRIVERS | |
| 50 | help | |
| 51 | Select this option to enable CPU idle driver for big.LITTLE based | |
| 52 | ARM systems. Driver manages CPUs coordination through MCPM and | |
| 53 | define different C-states for little and big cores through the | |
| 54 | multiple CPU idle drivers infrastructure. | |
| be6a98d3 | 55 | endif |
| b39b0981 DL |
56 | |
| 57 | config ARCH_NEEDS_CPU_IDLE_COUPLED | |
| 58 | def_bool n |