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powerpc/64: move account_stolen_time into its own function

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This will be used by interrupt entry as well.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-38-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2021-01-30 23:08:47 +10:00 committed by Michael Ellerman
parent 75b96950fd
commit 2994e1babf
2 changed files with 15 additions and 9 deletions
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14
arch/powerpc/include/asm/cputime.h
View file

@ -87,6 +87,17 @@ static notrace inline void account_cpu_user_exit(void)
acct->starttime_user = tb;
}
static notrace inline void account_stolen_time(void)
{
#ifdef CONFIG_PPC_SPLPAR
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
struct lppaca *lp = local_paca->lppaca_ptr;
if (unlikely(local_paca->dtl_ridx != be64_to_cpu(lp->dtl_idx)))
accumulate_stolen_time();
}
#endif
}
#endif /* __KERNEL__ */
#else /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */
@ -96,5 +107,8 @@ static inline void account_cpu_user_entry(void)
static inline void account_cpu_user_exit(void)
{
}
static notrace inline void account_stolen_time(void)
{
}
#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */
#endif /* __POWERPC_CPUTIME_H */

10
arch/powerpc/kernel/syscall_64.c
View file

@ -69,15 +69,7 @@ notrace long system_call_exception(long r3, long r4, long r5,
account_cpu_user_entry();
#ifdef CONFIG_PPC_SPLPAR
if (IS_ENABLED(CONFIG_VIRT_CPU_ACCOUNTING_NATIVE) &&
firmware_has_feature(FW_FEATURE_SPLPAR)) {
struct lppaca *lp = local_paca->lppaca_ptr;
if (unlikely(local_paca->dtl_ridx != be64_to_cpu(lp->dtl_idx)))
accumulate_stolen_time();
}
#endif
account_stolen_time();
/*
* This is not required for the syscall exit path, but makes the