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| author | Alexander Gordeev <agordeev@linux.ibm.com> | 2020-03-11 14:18:05 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-03-23 13:41:53 +0100 |
| commit | 42d211a1ae3b77008d4190b7dc79ad29b48bbcd2 (patch) | |
| tree | ae430b4c228bcbc2ffd4e22494312c66e413a833 /arch/s390 | |
| parent | s390/mm: optimize page table upgrade routine (diff) | |
| download | linux-42d211a1ae3b77008d4190b7dc79ad29b48bbcd2.tar.xz linux-42d211a1ae3b77008d4190b7dc79ad29b48bbcd2.zip | |
s390/cpuinfo: show processor physical address
Show CPU physical address as reported by STAP instruction
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/include/asm/smp.h | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/processor.c | 1 | ||||
| -rw-r--r-- | arch/s390/kernel/smp.c | 5 |
3 files changed, 7 insertions, 0 deletions
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h index b157a81fb977..231a51e870fe 100644 --- a/arch/s390/include/asm/smp.h +++ b/arch/s390/include/asm/smp.h @@ -34,6 +34,7 @@ extern int smp_vcpu_scheduled(int cpu); extern void smp_yield_cpu(int cpu); extern void smp_cpu_set_polarization(int cpu, int val); extern int smp_cpu_get_polarization(int cpu); +extern int smp_cpu_get_cpu_address(int cpu); extern void smp_fill_possible_mask(void); extern void smp_detect_cpus(void); diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index 2c13ca562b48..b98654d0ce41 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -159,6 +159,7 @@ static void show_cpu_topology(struct seq_file *m, unsigned long n) seq_printf(m, "book id : %d\n", topology_book_id(n)); seq_printf(m, "drawer id : %d\n", topology_drawer_id(n)); seq_printf(m, "dedicated : %d\n", topology_cpu_dedicated(n)); + seq_printf(m, "address : %d\n", smp_cpu_get_cpu_address(n)); #endif /* CONFIG_SCHED_TOPOLOGY */ } diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index f87d4e14269c..edc1bf39c542 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -703,6 +703,11 @@ int smp_cpu_get_polarization(int cpu) return pcpu_devices[cpu].polarization; } +int smp_cpu_get_cpu_address(int cpu) +{ + return pcpu_devices[cpu].address; +} + static void __ref smp_get_core_info(struct sclp_core_info *info, int early) { static int use_sigp_detection; |