diff options
| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2024-10-10 09:01:28 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2024-11-02 12:37:36 +0100 |
| commit | 1184674d6ef9368b9377213caad3aeb0d97ee1d5 (patch) | |
| tree | 9770c905d99e2b1afdcc4c697b8a85663c5a3cd9 /arch/powerpc/kernel/smp.c | |
| parent | c22c06b4cc3a7434f36dac9310604be3ebc6f4f9 (diff) | |
powerpc: Split systemcfg data out of vdso data page
The systemcfg data only has minimal overlap with the vdso data.
Splitting the two avoids mapping the implementation-defined vdso data
into /proc/ppc64/systemcfg.
It is also a preparation for the standardization of vdso data storage.
The only field actually used by both systemcfg and vdso is
tb_ticks_per_sec and it is only changed once during time_init().
Initialize it in both structures there.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-26-b64f0842d512@linutronix.de
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 4ab9b8cee77a..87ae45bf1045 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -1186,8 +1186,8 @@ int generic_cpu_disable(void) return -EBUSY; set_cpu_online(cpu, false); -#ifdef CONFIG_PPC64 - vdso_data->processorCount--; +#ifdef CONFIG_PPC64_PROC_SYSTEMCFG + systemcfg->processorCount--; #endif /* Update affinity of all IRQs previously aimed at this CPU */ irq_migrate_all_off_this_cpu(); @@ -1642,10 +1642,12 @@ void start_secondary(void *unused) secondary_cpu_time_init(); -#ifdef CONFIG_PPC64 +#ifdef CONFIG_PPC64_PROC_SYSTEMCFG if (system_state == SYSTEM_RUNNING) - vdso_data->processorCount++; + systemcfg->processorCount++; +#endif +#ifdef CONFIG_PPC64 vdso_getcpu_init(); #endif set_numa_node(numa_cpu_lookup_table[cpu]); |