From: Nicholas Piggin <npiggin@gmail.com>
To: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: benh@kernel.crashing.org, mpe@ellerman.id.au, anton@samba.org,
paulus@samba.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH 10/13] powerpc: Add "bitmask" paramater to MASKABLE_* macros
Date: Fri, 16 Sep 2016 21:03:44 +1000 [thread overview]
Message-ID: <20160916210344.5689fbd8@roar.ozlabs.ibm.com> (raw)
In-Reply-To: <1473944523-624-11-git-send-email-maddy@linux.vnet.ibm.com>
On Thu, 15 Sep 2016 18:32:00 +0530
Madhavan Srinivasan <maddy@linux.vnet.ibm.com> wrote:
> Make it explicit the interrupt masking supported
> by a gievn interrupt handler. Patch correspondingly
> extends the MASKABLE_* macros with an addition's parameter.
> "bitmask" parameter is passed to SOFTEN_TEST macro to decide
> on masking the interrupt.
>
> Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
> ---
> arch/powerpc/include/asm/exception-64s.h | 62 ++++++++++++++++----------------
> arch/powerpc/kernel/exceptions-64s.S | 36 ++++++++++++-------
> 2 files changed, 54 insertions(+), 44 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
> index 1eea4ab75607..41be0c2d7658 100644
> --- a/arch/powerpc/include/asm/exception-64s.h
> +++ b/arch/powerpc/include/asm/exception-64s.h
> @@ -179,9 +179,9 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
> * checking of the interrupt maskable level in the SOFTEN_TEST.
> * Intended to be used in MASKABLE_EXCPETION_* macros.
> */
> -#define __EXCEPTION_PROLOG_1(area, extra, vec) \
> +#define __EXCEPTION_PROLOG_1(area, extra, vec, bitmask) \
> __EXCEPTION_PROLOG_1_PRE(area); \
> - extra(vec); \
> + extra(vec, bitmask); \
> __EXCEPTION_PROLOG_1_POST(area);
>
> /*
Is __EXCEPTION_PROLOG_1 now for maskable exceptions, and EXCEPTION_PROLOG_1
for unmaskable? Does it make sense to rename __EXCEPTION_PROLOG_1 to
MASKABLE_EXCEPTION_PROLOG_1? Reducing the mystery underscores in this file would
be nice!
This worked out nicely with mask bit being passed in by the exception handlers.
Very neat.
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
next prev parent reply other threads:[~2016-09-16 11:03 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-15 13:01 [PATCH 00/13] powerpc: "paca->soft_enabled" based local atomic operation implementation Madhavan Srinivasan
2016-09-15 13:01 ` [PATCH 01/13] powerpc: Add #defs for paca->soft_enabled flags Madhavan Srinivasan
2016-09-15 13:01 ` [PATCH 02/13] powerpc: Cleanup to use IRQ_DISABLE_MASK_* macros for paca->soft_enabled update Madhavan Srinivasan
2016-09-16 9:47 ` Nicholas Piggin
2016-09-19 4:04 ` Madhavan Srinivasan
2016-09-15 13:01 ` [PATCH 03/13] powerpc: move set_soft_enabled() and rename Madhavan Srinivasan
2016-09-16 9:50 ` Nicholas Piggin
2016-09-19 4:05 ` Madhavan Srinivasan
2016-09-15 13:01 ` [PATCH 04/13] powerpc: Use soft_enabled_set api to update paca->soft_enabled Madhavan Srinivasan
2016-09-16 9:53 ` Nicholas Piggin
2016-09-16 11:43 ` David Laight
2016-09-16 11:59 ` Nicholas Piggin
2016-09-16 13:22 ` David Laight
2016-09-19 2:52 ` Nicholas Piggin
2016-09-19 5:32 ` Madhavan Srinivasan
2016-09-19 5:05 ` Madhavan Srinivasan
2016-09-19 4:11 ` Madhavan Srinivasan
2016-09-15 13:01 ` [PATCH 05/13] powerpc: Add soft_enabled manipulation functions Madhavan Srinivasan
2016-09-16 9:57 ` Nicholas Piggin
2016-09-19 5:41 ` Madhavan Srinivasan
2016-09-15 13:01 ` [PATCH 06/13] powerpc: reverse the soft_enable logic Madhavan Srinivasan
2016-09-16 10:05 ` Nicholas Piggin
2016-09-19 5:45 ` Madhavan Srinivasan
2016-09-15 13:01 ` [PATCH 07/13] powerpc: Avoid using EXCEPTION_PROLOG_1 macro in MASKABLE_* Madhavan Srinivasan
2016-09-16 10:08 ` Nicholas Piggin
2016-09-15 13:01 ` [PATCH 08/13] powerpc: Add new _EXCEPTION_PROLOG_1 macro Madhavan Srinivasan
2016-09-16 10:12 ` Nicholas Piggin
2016-09-19 5:54 ` Madhavan Srinivasan
2016-09-15 13:01 ` [PATCH 09/13] powerpc: Introduce new mask bit for soft_enabled Madhavan Srinivasan
2016-09-16 10:16 ` Nicholas Piggin
2016-09-19 5:57 ` Madhavan Srinivasan
2016-09-15 13:02 ` [PATCH 10/13] powerpc: Add "bitmask" paramater to MASKABLE_* macros Madhavan Srinivasan
2016-09-16 11:03 ` Nicholas Piggin [this message]
2016-09-19 5:58 ` Madhavan Srinivasan
2016-09-15 13:02 ` [PATCH 11/13] powerpc: Add support to mask perf interrupts and replay them Madhavan Srinivasan
2016-09-16 10:47 ` Nicholas Piggin
2016-09-15 13:02 ` [PATCH 12/13] powerpc: Add a Kconfig and a functions to set new soft_enabled mask Madhavan Srinivasan
2016-09-16 10:34 ` Nicholas Piggin
2016-09-16 10:56 ` Nicholas Piggin
2016-09-19 6:03 ` Madhavan Srinivasan
2016-09-15 13:02 ` [PATCH 13/13] powerpc: rewrite local_t using soft_irq Madhavan Srinivasan
2016-09-15 16:55 ` kbuild test robot
2016-09-16 11:01 ` Nicholas Piggin
2016-09-16 11:08 ` [PATCH 00/13] powerpc: "paca->soft_enabled" based local atomic operation implementation Nicholas Piggin
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