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From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Nicholas Piggin <npiggin@gmail.com>, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v5 16/21] powerpc/64: move account_stolen_time into its own function
Date: Wed, 13 Jan 2021 15:59:13 +0100	[thread overview]
Message-ID: <fa2c9884-81c8-d4cc-a33d-3aacdacfafd7@csgroup.eu> (raw)
In-Reply-To: <20210113073215.516986-17-npiggin@gmail.com>



Le 13/01/2021 à 08:32, Nicholas Piggin a écrit :
> This will be used by interrupt entry as well.
> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
>   arch/powerpc/include/asm/cputime.h | 15 +++++++++++++++
>   arch/powerpc/kernel/syscall_64.c   | 10 +---------
>   2 files changed, 16 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h
> index ed75d1c318e3..3f61604e1fcf 100644
> --- a/arch/powerpc/include/asm/cputime.h
> +++ b/arch/powerpc/include/asm/cputime.h
> @@ -87,6 +87,18 @@ 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 (IS_ENABLED(CONFIG_VIRT_CPU_ACCOUNTING_NATIVE) &&

Arent' you already inside a CONFIG_VIRT_CPU_ACCOUNTING_NATIVE section ?

> +	    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 +108,8 @@ 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 */
> diff --git a/arch/powerpc/kernel/syscall_64.c b/arch/powerpc/kernel/syscall_64.c
> index 42f0ad4b2fbb..32f72965da26 100644
> --- a/arch/powerpc/kernel/syscall_64.c
> +++ b/arch/powerpc/kernel/syscall_64.c
> @@ -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
> 

  reply	other threads:[~2021-01-13 15:01 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-13  7:31 [PATCH v5 00/21] powerpc: interrupt wrappers Nicholas Piggin
2021-01-13  7:31 ` [PATCH v5 01/21] powerpc/32s: Do DABR match out of handle_page_fault() Nicholas Piggin
2021-01-13  7:31 ` [PATCH v5 02/21] powerpc/64s: move the last of the page fault handling logic to C Nicholas Piggin
2021-01-13 14:12   ` Christophe Leroy
2021-01-14  3:24     ` Nicholas Piggin
2021-01-14 12:09       ` Nicholas Piggin
2021-01-14 12:25         ` Christophe Leroy
2021-01-14 13:17           ` Nicholas Piggin
2021-01-14 13:28             ` Christophe Leroy
2021-01-15  0:25               ` Nicholas Piggin
2021-01-13  7:31 ` [PATCH v5 03/21] powerpc: remove arguments from fault handler functions Nicholas Piggin
2021-01-14 14:12   ` Christophe Leroy
2021-01-13  7:31 ` [PATCH v5 04/21] powerpc: bad_page_fault, do_break get registers from regs Nicholas Piggin
2021-01-13 14:25   ` Christophe Leroy
2021-01-14  3:26     ` Nicholas Piggin
2021-01-13  7:31 ` [PATCH v5 05/21] powerpc/perf: move perf irq/nmi handling details into traps.c Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 06/21] powerpc: interrupt handler wrapper functions Nicholas Piggin
2021-01-13 14:45   ` Christophe Leroy
2021-01-14  3:41     ` Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 07/21] powerpc: add interrupt wrapper entry / exit stub functions Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 08/21] powerpc: add interrupt_cond_local_irq_enable helper Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 09/21] powerpc/64: context tracking remove _TIF_NOHZ Nicholas Piggin
2021-01-13 14:50   ` Christophe Leroy
2021-01-14  3:48     ` Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 10/21] powerpc/64s/hash: improve context tracking of hash faults Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 11/21] powerpc/64: context tracking move to interrupt wrappers Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 12/21] powerpc/64: add context tracking to asynchronous interrupts Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 13/21] powerpc: handle irq_enter/irq_exit in interrupt handler wrappers Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 14/21] powerpc/64s: move context tracking exit to interrupt exit path Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 15/21] powerpc/64s: reconcile interrupts in C Nicholas Piggin
2021-01-13 14:54   ` Christophe Leroy
2021-01-14  3:51     ` Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 16/21] powerpc/64: move account_stolen_time into its own function Nicholas Piggin
2021-01-13 14:59   ` Christophe Leroy [this message]
2021-01-14  3:51     ` Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 17/21] powerpc/64: entry cpu time accounting in C Nicholas Piggin
2021-01-13 15:05   ` Christophe Leroy
2021-01-14  3:58     ` Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 18/21] powerpc: move NMI entry/exit code into wrapper Nicholas Piggin
2021-01-13 15:13   ` Christophe Leroy
2021-01-14  4:00     ` Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 19/21] powerpc/64s: move NMI soft-mask handling to C Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 20/21] powerpc/64s: runlatch interrupt handling in C Nicholas Piggin
2021-01-13  7:32 ` [PATCH v5 21/21] powerpc/64s: power4 nap fixup " Nicholas Piggin

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