Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7222f779 authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
Browse files

powerpc/prom: early_init_dt_scan_cpus() updates cpu features only once 



All our cpu feature updates were done for every CPU in the device-tree,
thus overwriting the cputable bits over and over again. Instead do them
only for the boot CPU.

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 36ae37e3

arch/powerpc/kernel/prom.c

+26 −26
Original line number Diff line number Diff line
@@ -347,12 +347,14 @@ static int __init early_init_dt_scan_cpus(unsigned long node, 
#endif

	}



	if (found >= 0) {

	/* Not the boot CPU */

	if (found < 0)

		return 0;



	DBG("boot cpu: logical %d physical %d\n", found,

	    be32_to_cpu(intserv[found_thread]));

	boot_cpuid = found;

		set_hard_smp_processor_id(found,

			be32_to_cpu(intserv[found_thread]));

	set_hard_smp_processor_id(found, be32_to_cpu(intserv[found_thread]));



	/*

	 * PAPR defines "logical" PVR values for cpus that
@@ -373,7 +375,6 @@ static int __init early_init_dt_scan_cpus(unsigned long node, 
		identify_cpu(0, be32_to_cpup(prop));



	identical_pvr_fixup(node);

	}



	check_cpu_feature_properties(node);

	check_cpu_pa_features(node);
@@ -385,7 +386,6 @@ static int __init early_init_dt_scan_cpus(unsigned long node, 
	else

		cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT;

#endif



	return 0;

}