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powerpc/pseries/lparcfg: Use num_possible_cpus() for potential processors

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The systemcfg processorCount variable tracks currently online variables,
not possible ones, so the stored value is wrong.
The code preferably tries to use the ibm,lrdr-capacity field 4 which
"represents the maximum number of processors that the guest can have."
Switch from processorCount to the better matching num_possible_cpus().

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-v1-24-b64f0842d512@linutronix.de
This commit is contained in:
Thomas Weißschuh 2024-10-10 09:01:26 +02:00 committed by Thomas Gleixner
parent af2c15920a
commit e07359f171
1 changed files with 1 additions and 2 deletions
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3
arch/powerpc/platforms/pseries/lparcfg.c
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@ -29,7 +29,6 @@
#include <asm/firmware.h>
#include <asm/rtas.h>
#include <asm/time.h>
#include <asm/vdso_datapage.h>
#include <asm/vio.h>
#include <asm/mmu.h>
#include <asm/machdep.h>
@ -530,7 +529,7 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v)
lrdrp = of_get_property(rtas_node, "ibm,lrdr-capacity", NULL);
if (lrdrp == NULL) {
partition_potential_processors = vdso_data->processorCount;
partition_potential_processors = num_possible_cpus();
} else {
partition_potential_processors = be32_to_cpup(lrdrp + 4);
}