On Fri, Jan 30, 2015 at 10:54:25PM +0000, [email protected] wrote: > From: Mathieu Poirier <[email protected]> > > Adding a lookup function allowing for quick and easy mapping > between processor HWID (as found, for example) in DT specifications > and the CPU index known to the kernel. > > Signed-off-by: Mathieu Poirier <[email protected]> > --- > arch/arm64/include/asm/smp_plat.h | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/arm64/include/asm/smp_plat.h > b/arch/arm64/include/asm/smp_plat.h > index 59e282311b58..8e4b011303b1 100644 > --- a/arch/arm64/include/asm/smp_plat.h > +++ b/arch/arm64/include/asm/smp_plat.h > @@ -19,6 +19,7 @@ > #ifndef __ASM_SMP_PLAT_H > #define __ASM_SMP_PLAT_H > > +#include <linux/cpumask.h> > #include <asm/types.h> > > struct mpidr_hash { > @@ -40,4 +41,15 @@ static inline u32 mpidr_hash_size(void) > extern u64 __cpu_logical_map[NR_CPUS]; > #define cpu_logical_map(cpu) __cpu_logical_map[cpu] > > +static inline int get_logical_index(u64 mpidr) > +{ > + int cpu; > + > + for (cpu = 0; cpu < nr_cpu_ids; cpu++) > + if (cpu_logical_map(cpu) == mpidr) > + return cpu; > + return -EINVAL; > +}
Can you not achieve the same thing using arch_find_n_match_cpu_physical_id in the coresight code? Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
