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From: hpa@zytor.com
To: Peter Zijlstra <peterz@infradead.org>,
	Alexey Dobriyan <adobriyan@gmail.com>
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: drop REG_OUT macro from hweight functions
Date: Tue, 30 Jul 2019 06:42:51 -0700	[thread overview]
Message-ID: <5DF8B85C-57EF-4AE4-A2EE-863D06D7C55E@zytor.com> (raw)
In-Reply-To: <20190730080843.GG31381@hirez.programming.kicks-ass.net>

On July 30, 2019 1:08:43 AM PDT, Peter Zijlstra <peterz@infradead.org> wrote:
>On Mon, Jul 29, 2019 at 11:44:17PM +0300, Alexey Dobriyan wrote:
>> On Mon, Jul 29, 2019 at 12:04:47PM +0200, Peter Zijlstra wrote:
>> > +#define _ASM_ARG1B	__ASM_FORM_RAW(dil)
>> > +#define _ASM_ARG2B	__ASM_FORM_RAW(sil)
>> > +#define _ASM_ARG3B	__ASM_FORM_RAW(dl)
>> > +#define _ASM_ARG4B	__ASM_FORM_RAW(cl)
>> > +#define _ASM_ARG5B	__ASM_FORM_RAW(r8b)
>> > +#define _ASM_ARG6B	__ASM_FORM_RAW(r9b)
>> 
>> I preprocessed percpu code once to see what precisely it does because
>> it was easier than wading through forest of macroes.
>
>Per cpu is easy, try reading the tracepoint code ;-)

Sometimes it's the .s file one ends up wanting to check out...
-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.

      reply	other threads:[~2019-07-30 13:43 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-28 11:51 Alexey Dobriyan
2019-07-29  9:43 ` Peter Zijlstra
2019-07-29 10:04   ` Peter Zijlstra
2019-07-29 20:44     ` Alexey Dobriyan
2019-07-30  8:08       ` Peter Zijlstra
2019-07-30 13:42         ` hpa [this message]

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