diff options
| author | Kanoj Sarcar <kanoj@engr.sgi.com> | 2001-03-02 08:42:17 +0000 |
|---|---|---|
| committer | Kanoj Sarcar <kanoj@engr.sgi.com> | 2001-03-02 08:42:17 +0000 |
| commit | 5ab307f5e6368d6e8eb5d758b41311458827ea39 (patch) | |
| tree | 8bbcd229292163a6e5cdf5d27d02748ae120bf98 /include | |
| parent | 1a811c4fbfd1671c78b64382cf16261ab75cd3ca (diff) | |
Add in mips64 specific support for handling 128 cpus.
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-mips64/smp.h | 39 |
1 files changed, 33 insertions, 6 deletions
diff --git a/include/asm-mips64/smp.h b/include/asm-mips64/smp.h index 8ec23cc47..efb50ba18 100644 --- a/include/asm-mips64/smp.h +++ b/include/asm-mips64/smp.h @@ -11,10 +11,10 @@ #define __ASM_SMP_H #include <linux/config.h> -#include <linux/threads.h> #ifdef CONFIG_SMP +#include <linux/threads.h> #include <linux/irq.h> #if 0 @@ -47,15 +47,42 @@ extern int __cpu_number_map[NR_CPUS]; extern int __cpu_logical_map[NR_CPUS]; #define cpu_logical_map(cpu) __cpu_logical_map[cpu] -#endif /* CONFIG_SMP */ +#endif #define NO_PROC_ID (-1) +#if (NR_CPUS <= _MIPS_SZLONG) + typedef unsigned long cpumask_t; -#define CPUMASK_CLRALL(p) (p) = 0 -#define CPUMASK_SETB(p, bit) (p) |= 1 << (bit) -#define CPUMASK_CLRB(p, bit) (p) &= ~(1ULL << (bit)) -#define CPUMASK_TSTB(p, bit) ((p) & (1ULL << (bit))) +#define CPUMASK_CLRALL(p) (p) = 0 +#define CPUMASK_SETB(p, bit) (p) |= 1 << (bit) +#define CPUMASK_CLRB(p, bit) (p) &= ~(1ULL << (bit)) +#define CPUMASK_TSTB(p, bit) ((p) & (1ULL << (bit))) + +#elif (NR_CPUS <= 128) + +/* + * The foll should work till 128 cpus. + */ +#define CPUMASK_SIZE (NR_CPUS/_MIPS_SZLONG) +#define CPUMASK_INDEX(bit) ((bit) >> 6) +#define CPUMASK_SHFT(bit) ((bit) & 0x3f) + +typedef struct { + unsigned long _bits[CPUMASK_SIZE]; +} cpumask_t; + +#define CPUMASK_CLRALL(p) (p)._bits[0] = 0, (p)._bits[1] = 0 +#define CPUMASK_SETB(p, bit) (p)._bits[CPUMASK_INDEX(bit)] |= \ + (1ULL << CPUMASK_SHFT(bit)) +#define CPUMASK_CLRB(p, bit) (p)._bits[CPUMASK_INDEX(bit)] &= \ + ~(1ULL << CPUMASK_SHFT(bit)) +#define CPUMASK_TSTB(p, bit) ((p)._bits[CPUMASK_INDEX(bit)] & \ + (1ULL << CPUMASK_SHFT(bit))) + +#else +#error cpumask macros only defined for 128p kernels +#endif #endif /* __ASM_SMP_H */ |