| Message ID | 1374492747-13879-3-git-send-email-Sudeep.KarkadaNagesha@arm.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Mon, 22 Jul 2013, Sudeep KarkadaNagesha wrote: > From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> > > OF/DT core library now provides architecture specific hook to match the > logical cpu index with the corresponding physical identifier. Most of the > cpu DT node parsing and initialisation is contained in devtree.c. So it's > better to define ARM specific arch_match_cpu_phys_id there. > > This mainly helps to avoid replication of the code doing CPU node parsing > and physical(MPIDR) to logical mapping. > > Cc: Russell King <linux@arm.linux.org.uk> > Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> > Acked-by: Rob Herring <rob.herring@calxeda.com> > Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> Acked-by: Nicolas Pitre <nico@linaro.org> > --- > arch/arm/kernel/devtree.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c > index 5859c8b..2ee8a17 100644 > --- a/arch/arm/kernel/devtree.c > +++ b/arch/arm/kernel/devtree.c > @@ -169,6 +169,11 @@ void __init arm_dt_init_cpu_maps(void) > } > } > > +bool arch_match_cpu_phys_id(int cpu, u64 phys_id) > +{ > + return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu); > +} > + > /** > * setup_machine_fdt - Machine setup when an dtb was passed to the kernel > * @dt_phys: physical address of dt blob > -- > 1.8.1.2 > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c index 5859c8b..2ee8a17 100644 --- a/arch/arm/kernel/devtree.c +++ b/arch/arm/kernel/devtree.c @@ -169,6 +169,11 @@ void __init arm_dt_init_cpu_maps(void) } } +bool arch_match_cpu_phys_id(int cpu, u64 phys_id) +{ + return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu); +} + /** * setup_machine_fdt - Machine setup when an dtb was passed to the kernel * @dt_phys: physical address of dt blob