From: David Mosberger <davidm@hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] atomic add instruction
Date: Wed, 18 Jul 2001 21:32:26 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590693005853@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590693005852@msgid-missing>
There are compiler intrinisics for this purpose. See the IA-64
processor-specific ABI for a description. You have to include
<ia64intrin.h> to get the intrinsics defined.
--david
>>>>> On Tue, 17 Jul 2001 15:09:46 -0700, "Swaminathan Sivasubramanian" <ssivasu@us.ibm.com> said:
Swami> Hello Everyone,
Swami> I want an atomic function that does addition of a constant to
Swami> the value in a memory location and returns the previous value
Swami> in that location.
Swami> Is there any macro/function defined in IA-64's atomic.h
Swami> already. (will fetch-and-add solve the purpose?) or one
Swami> should write his own function for it
Swami> Thanking in advance, Swami
Swami> _______________________________________________ Linux-IA64
Swami> mailing list Linux-IA64@linuxia64.org
Swami> http://lists.linuxia64.org/lists/listinfo/linux-ia64
prev parent reply other threads:[~2001-07-18 21:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-17 22:09 [Linux-ia64] atomic add instruction Swaminathan Sivasubramanian
2001-07-18 21:32 ` David Mosberger [this message]
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