diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-03-08 10:11:33 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-03-08 10:11:33 -0300 |
| commit | 009ef05f98129aa91c62c3baab859ba593a15bb2 (patch) | |
| tree | f3414f08d636a597545b1e4f443b373b9d6d8f4b /arch/openrisc/kernel/smp.c | |
| parent | 2777b81b379df772defd654bc4d3fa82dca17a4b (diff) | |
| parent | 144c79ef33536b4ecb4951e07dbc1f2b7fa99d32 (diff) | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up the fixes sent for v5.12 and continue development based on
v5.12-rc2, i.e. without the swap on file bug.
This also gets a slightly newer and better tools/perf/arch/arm/util/cs-etm.c
patch version, using the BIT() macro, that had already been slated to
v5.13 but ended up going to v5.12-rc1 on an older version.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/openrisc/kernel/smp.c')
| -rw-r--r-- | arch/openrisc/kernel/smp.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c index 29c82ef2e207..48e1092a64de 100644 --- a/arch/openrisc/kernel/smp.c +++ b/arch/openrisc/kernel/smp.c @@ -16,6 +16,7 @@ #include <linux/sched.h> #include <linux/sched/mm.h> #include <linux/irq.h> +#include <linux/of.h> #include <asm/cpuinfo.h> #include <asm/mmu_context.h> #include <asm/tlbflush.h> @@ -60,22 +61,32 @@ void __init smp_prepare_boot_cpu(void) void __init smp_init_cpus(void) { - int i; + struct device_node *cpu; + u32 cpu_id; - for (i = 0; i < NR_CPUS; i++) - set_cpu_possible(i, true); + for_each_of_cpu_node(cpu) { + if (of_property_read_u32(cpu, "reg", &cpu_id)) { + pr_warn("%s missing reg property", cpu->full_name); + continue; + } + + if (cpu_id < NR_CPUS) + set_cpu_possible(cpu_id, true); + } } void __init smp_prepare_cpus(unsigned int max_cpus) { - int i; + unsigned int cpu; /* * Initialise the present map, which describes the set of CPUs * actually populated at the present time. */ - for (i = 0; i < max_cpus; i++) - set_cpu_present(i, true); + for_each_possible_cpu(cpu) { + if (cpu < max_cpus) + set_cpu_present(cpu, true); + } } void __init smp_cpus_done(unsigned int max_cpus) |