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Diffstat (limited to 'Documentation/scheduler/sched-arch.txt')
| -rw-r--r-- | Documentation/scheduler/sched-arch.txt | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/Documentation/scheduler/sched-arch.txt b/Documentation/scheduler/sched-arch.txt index 28aa1075e291..b1b8587b86f0 100644 --- a/Documentation/scheduler/sched-arch.txt +++ b/Documentation/scheduler/sched-arch.txt | |||
| @@ -17,16 +17,6 @@ you must `#define __ARCH_WANT_UNLOCKED_CTXSW` in a header file | |||
| 17 | Unlocked context switches introduce only a very minor performance | 17 | Unlocked context switches introduce only a very minor performance |
| 18 | penalty to the core scheduler implementation in the CONFIG_SMP case. | 18 | penalty to the core scheduler implementation in the CONFIG_SMP case. |
| 19 | 19 | ||
| 20 | 2. Interrupt status | ||
| 21 | By default, the switch_to arch function is called with interrupts | ||
| 22 | disabled. Interrupts may be enabled over the call if it is likely to | ||
| 23 | introduce a significant interrupt latency by adding the line | ||
| 24 | `#define __ARCH_WANT_INTERRUPTS_ON_CTXSW` in the same place as for | ||
| 25 | unlocked context switches. This define also implies | ||
| 26 | `__ARCH_WANT_UNLOCKED_CTXSW`. See arch/arm/include/asm/system.h for an | ||
| 27 | example. | ||
| 28 | |||
| 29 | |||
| 30 | CPU idle | 20 | CPU idle |
| 31 | ======== | 21 | ======== |
| 32 | Your cpu_idle routines need to obey the following rules: | 22 | Your cpu_idle routines need to obey the following rules: |