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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2020-11-02 13:02:20 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2022-09-08 15:54:23 +0200 |
| commit | d907c2294a438f07099730b88ff88a659e940de7 (patch) | |
| tree | 152a6878727e1699624a34759bc465a54172182e /spec/build/bsps/powerpc/qoriq/abi.yml | |
| parent | rtems: Include <rtems/score/cpuopts.h> (diff) | |
| download | rtems-d907c2294a438f07099730b88ff88a659e940de7.tar.bz2 | |
powerpc: Add support for VRSAVE
The VRSAVE feature of the Altivec unit can be used to reduce the amount of
Altivec registers which need to be saved/restored during interrupt processing
and context switches.
In order to use the VRSAVE optimization a corresponding multilib (-mvrsave) is
required, see GCC configuration. The -mvrsave option must be added to the
ABI_FLAGS of the BSP.
Currently only the -mcpu=e6500 based QorIQ BSP support this optimization.
Update #4712.
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