From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Nicholas Piggin <npiggin@gmail.com>,
Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: mpe@ellerman.id.au, anton@samba.org, paulus@samba.org,
linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v9 14/14] powerpc: rewrite local_t using soft_irq
Date: Fri, 04 Aug 2017 11:40:43 +1000 [thread overview]
Message-ID: <1501810843.2664.63.camel@kernel.crashing.org> (raw)
In-Reply-To: <20170804035005.1d462325@roar.ozlabs.ibm.com>
On Fri, 2017-08-04 at 03:50 +1000, Nicholas Piggin wrote:
> Hey, so... why are any of these implemented in asm? We should
> just do them all in C, right? I looked a bit harder at code gen
> and a couple of them are still emitting larx/stcx.
As long as we can guarantee that the C compiler won't play games
moving stuff around. But yes, I tend to agree.
Cheers,
Ben.
next prev parent reply other threads:[~2017-08-04 1:41 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-03 3:49 [PATCH v9 00/14]powerpc: "paca->soft_enabled" based local atomic operation implementation Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 01/14] powerpc: Add #defs for paca->soft_enabled flags Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 02/14] powerpc: move set_soft_enabled() and rename Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 03/14] powerpc: Use soft_enabled_set api to update paca->soft_enabled Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 04/14] powerpc: Add soft_enabled manipulation functions Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 05/14] powerpc/irq: Cleanup hard_irq_disable() macro Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 06/14] powerpc/irq: Fix arch_local_irq_disable() in book3s Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 07/14] powerpc: Modify soft_enable from flag to mask Madhavan Srinivasan
2017-08-03 4:44 ` Nicholas Piggin
2017-08-03 3:49 ` [PATCH v9 08/14] powerpc: Rename soft_enabled to soft_disable_mask Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 09/14] powerpc: Avoid using EXCEPTION_PROLOG_1 macro in MASKABLE_* Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 10/14] powerpc: Add support to take additional parameter in MASKABLE_* macro Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 11/14] Add support to mask perf interrupts and replay them Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 12/14] powerpc:Add new kconfig IRQ_DEBUG_SUPPORT Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 13/14] powerpc: Add new set of soft_disable_mask_ functions Madhavan Srinivasan
2017-08-03 3:49 ` [PATCH v9 14/14] powerpc: rewrite local_t using soft_irq Madhavan Srinivasan
2017-08-03 17:50 ` Nicholas Piggin
2017-08-04 1:40 ` Benjamin Herrenschmidt [this message]
2017-08-04 9:04 ` Nicholas Piggin
2017-08-04 15:18 ` David Laight
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