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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-01-13 14:51:55 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-01-17 08:14:12 +0100 |
| commit | 12a2a8e4426c05161aa76a9c86de1e36e43e8a61 (patch) | |
| tree | 2fc95f72415a243cc05aa7aae73586ea18f0cd3d /cpukit/score/cpu/arm/include/rtems/score/arm.h | |
| parent | arm: Fix stack alignment during interrupt handling (diff) | |
| download | rtems-12a2a8e4426c05161aa76a9c86de1e36e43e8a61.tar.bz2 | |
arm: Optimize interrupt handling
Use the SRS (Store Return State) instruction if available. This
considerably simplifies the context save and restore.
Diffstat (limited to 'cpukit/score/cpu/arm/include/rtems/score/arm.h')
| -rw-r--r-- | cpukit/score/cpu/arm/include/rtems/score/arm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/cpukit/score/cpu/arm/include/rtems/score/arm.h b/cpukit/score/cpu/arm/include/rtems/score/arm.h index b1e4b07a37..7eaa69d889 100644 --- a/cpukit/score/cpu/arm/include/rtems/score/arm.h +++ b/cpukit/score/cpu/arm/include/rtems/score/arm.h @@ -47,6 +47,7 @@ extern "C" { #define ARM_MULTILIB_HAS_WFI #define ARM_MULTILIB_HAS_LOAD_STORE_EXCLUSIVE #define ARM_MULTILIB_HAS_BARRIER_INSTRUCTIONS + #define ARM_MULTILIB_HAS_STORE_RETURN_STATE #endif #ifndef ARM_DISABLE_THREAD_ID_REGISTER_USE |