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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-01-25 10:20:28 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-01-26 09:07:30 +0100 |
| commit | a8865f8b415788c4e9bb7f68e38d41aec0e485db (patch) | |
| tree | d7b70c608239be68c6476b0d9e9893e099ec8be6 /cpukit/score/cpu/i386/rtems/score/cpu.h | |
| parent | score: Add RTEMS_ALIGNED() (diff) | |
| download | rtems-a8865f8b415788c4e9bb7f68e38d41aec0e485db.tar.bz2 | |
score: Introduce CPU_CACHE_LINE_BYTES
Add CPU_CACHE_LINE_BYTES for the maximum cache line size in bytes. The
actual processor may use no cache or a smaller cache line size.
Diffstat (limited to '')
| -rw-r--r-- | cpukit/score/cpu/i386/rtems/score/cpu.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cpukit/score/cpu/i386/rtems/score/cpu.h b/cpukit/score/cpu/i386/rtems/score/cpu.h index 8a495972e3..5a8e5d6cb3 100644 --- a/cpukit/score/cpu/i386/rtems/score/cpu.h +++ b/cpukit/score/cpu/i386/rtems/score/cpu.h @@ -100,6 +100,10 @@ extern "C" { #endif /* __SSE__ */ #define CPU_STACK_GROWS_UP FALSE + +/* FIXME: The Pentium 4 used 128 bytes, it this processor still relevant? */ +#define CPU_CACHE_LINE_BYTES 64 + #define CPU_STRUCTURE_ALIGNMENT /* |