diff options
| author | Timur Tabi <timur@freescale.com> | 2011-08-05 16:15:24 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-09-29 19:01:05 -0500 |
| commit | fbb9ecf7493fbd6b8c8af7d52e90c915459f7040 (patch) | |
| tree | b19bce4d9c77be58fc1aba43bd73625222c99f8f /include/common.h | |
| parent | 86df5142a14868ea0e24511f4293d43a611a2b39 (diff) | |
powerpc/mp: add support for discontiguous cores
Some SOCs have discontiguously-numbered cores, and so we can't determine the
valid core numbers via the FRR register any more. We define
CPU_TYPE_ENTRY_MASK to specify a discontiguous core mask, and helper functions
to process the mask and enumerate over the set of valid cores.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'include/common.h')
| -rw-r--r-- | include/common.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/common.h b/include/common.h index d244bd40b5..05e2f728e7 100644 --- a/include/common.h +++ b/include/common.h @@ -485,7 +485,22 @@ void ddr_enable_ecc(unsigned int dram_size); #endif /* $(CPU)/cpu.c */ +static inline int cpumask_next(int cpu, unsigned int mask) +{ + for (cpu++; !((1 << cpu) & mask); cpu++) + ; + + return cpu; +} + +#define for_each_cpu(iter, cpu, num_cpus, mask) \ + for (iter = 0, cpu = cpumask_next(-1, mask); \ + iter < num_cpus; \ + iter++, cpu = cpumask_next(cpu, mask)) \ + int cpu_numcores (void); +u32 cpu_mask (void); +int is_core_valid (unsigned int); int probecpu (void); int checkcpu (void); int checkicache (void); |