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| author | Michael Ellerman | 2018-03-30 15:11:24 +0200 |
|---|---|---|
| committer | Michael Ellerman | 2018-03-31 00:09:36 +0200 |
| commit | f437c51748fa1dd423a878c870ad203843a51c8d (patch) | |
| tree | d1593fe45c0341f88eecd26568bb913ac74c64a1 /arch/powerpc/kernel/prom.c | |
| parent | powerpc/mm/hash: Don't memset pgd table if not needed (diff) | |
| parent | powerpc/mm: Pass node id into create_section_mapping (diff) | |
| download | kernel-qcow2-linux-f437c51748fa1dd423a878c870ad203843a51c8d.tar.gz kernel-qcow2-linux-f437c51748fa1dd423a878c870ad203843a51c8d.tar.xz kernel-qcow2-linux-f437c51748fa1dd423a878c870ad203843a51c8d.zip | |
Merge branch 'topic/paca' into next
Bring in yet another series that touches KVM code, and might need to
be merged into the kvm-ppc branch to resolve conflicts.
This required some changes in pnv_power9_force_smt4_catch/release()
due to the paca array becomming an array of pointers.
Diffstat (limited to 'arch/powerpc/kernel/prom.c')
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 330c65f04820..9dbed488aba1 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -365,7 +365,6 @@ static int __init early_init_dt_scan_cpus(unsigned long node, 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])); /* * PAPR defines "logical" PVR values for cpus that @@ -403,7 +402,9 @@ static int __init early_init_dt_scan_cpus(unsigned long node, cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT; else if (!dt_cpu_ftrs_in_use()) cur_cpu_spec->cpu_features |= CPU_FTR_SMT; + allocate_paca(boot_cpuid); #endif + set_hard_smp_processor_id(found, be32_to_cpu(intserv[found_thread])); return 0; } @@ -744,7 +745,7 @@ void __init early_init_devtree(void *params) * FIXME .. and the initrd too? */ move_device_tree(); - allocate_pacas(); + allocate_paca_ptrs(); DBG("Scanning CPUs ...\n"); @@ -874,5 +875,15 @@ EXPORT_SYMBOL(cpu_to_chip_id); bool arch_match_cpu_phys_id(int cpu, u64 phys_id) { +#ifdef CONFIG_SMP + /* + * Early firmware scanning must use this rather than + * get_hard_smp_processor_id because we don't have pacas allocated + * until memory topology is discovered. + */ + if (cpu_to_phys_id != NULL) + return (int)phys_id == cpu_to_phys_id[cpu]; +#endif + return (int)phys_id == get_hard_smp_processor_id(cpu); } |