From: Peter Zijlstra <peterz@infradead.org>
To: Alexey Dobriyan <adobriyan@gmail.com>
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
hpa@zytor.com, x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86: drop REG_OUT macro from hweight functions
Date: Tue, 30 Jul 2019 10:08:43 +0200 [thread overview]
Message-ID: <20190730080843.GG31381@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20190729204417.GA2146@avx2>
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 ;-)
next prev parent reply other threads:[~2019-07-30 8:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-28 11:51 [PATCH] x86: drop REG_OUT macro from hweight functions 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 [this message]
2019-07-30 13:42 ` hpa
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