diff options
| -rw-r--r-- | cpukit/score/cpu/powerpc/rtems/score/cpu.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/cpukit/score/cpu/powerpc/rtems/score/cpu.h b/cpukit/score/cpu/powerpc/rtems/score/cpu.h index 6f1ac9b02f..814e3a0104 100644 --- a/cpukit/score/cpu/powerpc/rtems/score/cpu.h +++ b/cpukit/score/cpu/powerpc/rtems/score/cpu.h @@ -61,6 +61,60 @@ #include <rtems/new-exceptions/cpu.h> #endif +/* + * Should be large enough to run all RTEMS tests. This insures + * that a "reasonable" small application should not have any problems. + */ + +#define CPU_STACK_MINIMUM_SIZE (1024*8) + +/* + * CPU's worst alignment requirement for data types on a byte boundary. This + * alignment does not take into account the requirements for the stack. + */ + +#define CPU_ALIGNMENT (PPC_ALIGNMENT) + +/* + * This number corresponds to the byte alignment requirement for the + * heap handler. This alignment requirement may be stricter than that + * for the data types alignment specified by CPU_ALIGNMENT. It is + * common for the heap to follow the same alignment requirement as + * CPU_ALIGNMENT. If the CPU_ALIGNMENT is strict enough for the heap, + * then this should be set to CPU_ALIGNMENT. + * + * NOTE: This does not have to be a power of 2. It does have to + * be greater or equal to than CPU_ALIGNMENT. + */ + +#define CPU_HEAP_ALIGNMENT (PPC_ALIGNMENT) + +/* + * This number corresponds to the byte alignment requirement for memory + * buffers allocated by the partition manager. This alignment requirement + * may be stricter than that for the data types alignment specified by + * CPU_ALIGNMENT. It is common for the partition to follow the same + * alignment requirement as CPU_ALIGNMENT. If the CPU_ALIGNMENT is strict + * enough for the partition, then this should be set to CPU_ALIGNMENT. + * + * NOTE: This does not have to be a power of 2. It does have to + * be greater or equal to than CPU_ALIGNMENT. + */ + +#define CPU_PARTITION_ALIGNMENT (PPC_ALIGNMENT) + +/* + * This number corresponds to the byte alignment requirement for the + * stack. This alignment requirement may be stricter than that for the + * data types alignment specified by CPU_ALIGNMENT. If the CPU_ALIGNMENT + * is strict enough for the stack, then this should be set to 0. + * + * NOTE: This must be a power of 2 either 0 or greater than CPU_ALIGNMENT. + */ + +#define CPU_STACK_ALIGNMENT (PPC_STACK_ALIGNMENT) + + #ifndef ASM /* The following routine swaps the endian format of an unsigned int. * It must be static because it is referenced indirectly. |