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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-12-23 14:18:06 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-01-13 11:37:28 +0100 |
| commit | 3e2647a7146d4b972c6a0290e6657bab0de18afa (patch) | |
| tree | 027f8a7d676d3ae80950344b3891072e2ca0a736 /cpukit/score/cpu/powerpc/rtems/score/powerpc.h | |
| parent | bsps/powerpc: Use e500 exc categories for e6500 (diff) | |
| download | rtems-3e2647a7146d4b972c6a0290e6657bab0de18afa.tar.bz2 | |
powerpc: AltiVec and FPU context support
Add AltiVec and FPU support to the Context_Control in case we use the
e6500 multilib.
Add PPC_MULTILIB_ALTIVEC and PPC_MULTILIB_FPU multilib defines. Add
non-volatile AltiVec and FPU context to Context_Control. Add save/restore of
non-volatile AltiVec and FPU to _CPU_Context_switch(). Add save/restore
of volatile AltiVec and FPU context to the exception code. Adjust data
cache optimizations for the new context and cache line size.
Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/cpu/powerpc/rtems/score/powerpc.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/cpukit/score/cpu/powerpc/rtems/score/powerpc.h b/cpukit/score/cpu/powerpc/rtems/score/powerpc.h index 7eaa237125..c640b2f783 100644 --- a/cpukit/score/cpu/powerpc/rtems/score/powerpc.h +++ b/cpukit/score/cpu/powerpc/rtems/score/powerpc.h @@ -120,12 +120,22 @@ extern "C" { * Assume PPC_HAS_FPU to be a synonym for _SOFT_FLOAT. */ -#if defined(_SOFT_FLOAT) || defined(__NO_FPRS__) /* e500 has unified integer/FP registers */ +#if defined(_SOFT_FLOAT) \ + || defined(__NO_FPRS__) /* e500 has unified integer/FP registers */ \ + || defined(__PPC_CPU_E6500__) #define PPC_HAS_FPU 0 #else #define PPC_HAS_FPU 1 #endif +#if defined(__PPC_CPU_E6500__) && defined(__ALTIVEC__) +#define PPC_MULTILIB_ALTIVEC +#endif + +#if defined(__PPC_CPU_E6500__) && !defined(_SOFT_FLOAT) +#define PPC_MULTILIB_FPU +#endif + /* * Unless specified above, If the model has FP support, it is assumed to * support doubles (8-byte floating point numbers). |