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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 v6 17/39] powerpc/fsl_booke/32: CacheLockingException remove args
Date: Fri, 15 Jan 2021 18:14:55 +0100	[thread overview]
Message-ID: <1bd92a69-71ab-cc7f-fec5-e2a67830c81b@csgroup.eu> (raw)
In-Reply-To: <20210115165012.1260253-18-npiggin@gmail.com>



Le 15/01/2021 à 17:49, Nicholas Piggin a écrit :
> Like other interrupt handler conversions, switch to getting registers
> from the pt_regs argument.
> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
>   arch/powerpc/kernel/head_fsl_booke.S | 6 +++---
>   arch/powerpc/kernel/traps.c          | 5 +++--
>   2 files changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
> index fdd4d274c245..0d4d9a6fcca1 100644
> --- a/arch/powerpc/kernel/head_fsl_booke.S
> +++ b/arch/powerpc/kernel/head_fsl_booke.S
> @@ -364,12 +364,12 @@ interrupt_base:
>   	/* Data Storage Interrupt */
>   	START_EXCEPTION(DataStorage)
>   	NORMAL_EXCEPTION_PROLOG(DATA_STORAGE)
> -	mfspr	r5,SPRN_ESR		/* Grab the ESR, save it, pass arg3 */
> +	mfspr	r5,SPRN_ESR		/* Grab the ESR, save it3 */
>   	stw	r5,_ESR(r11)
> -	mfspr	r4,SPRN_DEAR		/* Grab the DEAR, save it, pass arg2 */
> +	mfspr	r4,SPRN_DEAR		/* Grab the DEAR, save it */
> +	stw	r4, _DEAR(r11)
>   	andis.	r10,r5,(ESR_ILK|ESR_DLK)@h
>   	bne	1f
> -	stw	r4, _DEAR(r11)
>   	EXC_XFER_LITE(0x0300, handle_page_fault)
>   1:
>   	addi	r3,r1,STACK_FRAME_OVERHEAD

Why isn't the above done in patch 5 ?


> diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
> index 639bcafbad5e..1af52a4bce1f 100644
> --- a/arch/powerpc/kernel/traps.c
> +++ b/arch/powerpc/kernel/traps.c
> @@ -2105,9 +2105,10 @@ void altivec_assist_exception(struct pt_regs *regs)
>   #endif /* CONFIG_ALTIVEC */
>   
>   #ifdef CONFIG_FSL_BOOKE
> -void CacheLockingException(struct pt_regs *regs, unsigned long address,
> -			   unsigned long error_code)
> +void CacheLockingException(struct pt_regs *regs)
>   {
> +	unsigned long error_code = regs->dsisr;
> +
>   	/* We treat cache locking instructions from the user
>   	 * as priv ops, in the future we could try to do
>   	 * something smarter
> 

  reply	other threads:[~2021-01-15 18:38 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-15 16:49 [PATCH v6 00/39] powerpc: interrupt wrappers Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 01/39] KVM: PPC: Book3S HV: Context tracking exit guest context before enabling irqs Nicholas Piggin
2021-01-16 10:38   ` Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 02/39] powerpc/32s: move DABR match out of handle_page_fault Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 03/39] powerpc/64s: " Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 04/39] powerpc/64s: move the hash fault handling logic to C Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 05/39] powerpc: remove arguments from fault handler functions Nicholas Piggin
2021-01-27  6:38   ` Christophe Leroy
2021-01-28  0:05     ` Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 06/39] powerpc: do_break get registers from regs Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 07/39] powerpc: bad_page_fault " Nicholas Piggin
2021-01-15 17:09   ` Christophe Leroy
2021-01-16  0:42     ` Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 08/39] powerpc: rearrange do_page_fault error case to be inside exception_enter Nicholas Piggin
2021-01-28  9:25   ` Christophe Leroy
2021-01-15 16:49 ` [PATCH v6 09/39] powerpc/64s: move bad_page_fault handling to C Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 10/39] powerpc/64s: split do_hash_fault Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 11/39] powerpc/mm: Remove stale do_page_fault comment referring to SLB faults Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 12/39] powerpc/64s: slb comment update Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 13/39] powerpc/traps: add NOKPROBE_SYMBOL for sreset and mce Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 14/39] powerpc/perf: move perf irq/nmi handling details into traps.c Nicholas Piggin
2021-01-19 10:24   ` Athira Rajeev
2021-01-20  3:09     ` Nicholas Piggin
2021-01-20  4:21       ` Nicholas Piggin
2021-01-27  5:49       ` Athira Rajeev
2021-01-15 16:49 ` [PATCH v6 15/39] powerpc/time: move timer_broadcast_interrupt prototype to asm/time.h Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 16/39] powerpc: add and use unknown_async_exception Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 17/39] powerpc/fsl_booke/32: CacheLockingException remove args Nicholas Piggin
2021-01-15 17:14   ` Christophe Leroy [this message]
2021-01-16  0:43     ` Nicholas Piggin
2021-01-16  7:38       ` Christophe Leroy
2021-01-16 10:34         ` Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 18/39] powerpc: DebugException " Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 19/39] powerpc/cell: tidy up pervasive declarations Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 20/39] powerpc: introduce die_mce Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 21/39] powerpc/mce: ensure machine check handler always tests RI Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 22/39] powerpc: improve handling of unrecoverable system reset Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 23/39] powerpc: interrupt handler wrapper functions Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 24/39] powerpc: add interrupt wrapper entry / exit stub functions Nicholas Piggin
2021-01-15 16:49 ` [PATCH v6 25/39] powerpc: convert interrupt handlers to use wrappers Nicholas Piggin
2021-01-20 10:48   ` kernel test robot
2021-01-20 11:45   ` kernel test robot
2021-01-15 16:49 ` [PATCH v6 26/39] powerpc: add interrupt_cond_local_irq_enable helper Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 27/39] powerpc/64: context tracking remove _TIF_NOHZ Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 28/39] powerpc/64s/hash: improve context tracking of hash faults Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 29/39] powerpc/64: context tracking move to interrupt wrappers Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 30/39] powerpc/64: add context tracking to asynchronous interrupts Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 31/39] powerpc: handle irq_enter/irq_exit in interrupt handler wrappers Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 32/39] powerpc/64s: move context tracking exit to interrupt exit path Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 33/39] powerpc/64s: reconcile interrupts in C Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 34/39] powerpc/64: move account_stolen_time into its own function Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 35/39] powerpc/64: entry cpu time accounting in C Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 36/39] powerpc: move NMI entry/exit code into wrapper Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 37/39] powerpc/64s: move NMI soft-mask handling to C Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 38/39] powerpc/64s: runlatch interrupt handling in C Nicholas Piggin
2021-01-15 16:50 ` [PATCH v6 39/39] powerpc/64s: power4 nap fixup " Nicholas Piggin

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