From: Jeffrey Walton <noloader@gmail.com>
To: Yury Norov <ynorov@caviumnetworks.com>
Cc: linux-arm-kernel@lists.infradead.org, linux-arch@vger.kernel.org,
LKML <linux-kernel@vger.kernel.org>,
Linux Crypto Mailing List <linux-crypto@vger.kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>,
Andrew Morton <akpm@linux-foundation.org>,
Andrew Pinski <Andrew.Pinski@cavium.com>,
Arnd Bergmann <arnd@arndb.de>,
Catalin Marinas <catalin.marinas@arm.com>,
"David S . Miller" <davem@davemloft.net>,
Geethasowjanya Akula <Geethasowjanya.Akula@cavium.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Ingo Molnar <mingo@kernel.org>, Kees Cook <keescook@chromium.org>,
Laura Abbott <labbott@redhat.com>,
Nicholas Piggin <npiggin@gmail.com>,
Sunil Goutham <Sunil.Goutham@cavium.com>,
Will Deacon <will.deacon@arm.com>
Subject: Re: [PATCH RFC 0/3] API for 128-bit IO access
Date: Wed, 24 Jan 2018 11:38:42 -0500 [thread overview]
Message-ID: <CAH8yC8nvD-CWt9eZ_CumwtVB0xAKKD1uosftAKGvxrhJhcneNw@mail.gmail.com> (raw)
In-Reply-To: <20180124090519.6680-1-ynorov@caviumnetworks.com>
On Wed, Jan 24, 2018 at 4:05 AM, Yury Norov <ynorov@caviumnetworks.com> wrote:
>
> ...
> With all that, this example code:
>
> static int __init 128bit_test(void)
> {
> __uint128_t v;
> __uint128_t addr;
> __uint128_t val = (__uint128_t) 0x1234567890abc;
> ...
In case it matters, you can check for GCC support of the 128-bit types
in userland with:
#if (__SIZEOF_INT128__ >= 16)
...
#endif
Also see https://gcc.gnu.org/ml/gcc-help/2015-08/msg00185.html .
Jeff
prev parent reply other threads:[~2018-01-24 16:38 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-24 9:05 [PATCH RFC 0/3] API for 128-bit IO access Yury Norov
2018-01-24 9:05 ` [PATCH 1/3] UAPI: Introduce 128-bit types and byteswap operations Yury Norov
2018-01-24 9:05 ` [PATCH 2/3] asm-generic/io.h: API for 128-bit memory accessors Yury Norov
2018-01-24 9:05 ` [PATCH 3/3] arm64: enable 128-bit memory read/write support Yury Norov
2018-01-24 13:00 ` Geert Uytterhoeven
2018-01-24 18:19 ` Yury Norov
2018-01-24 10:22 ` [PATCH RFC 0/3] API for 128-bit IO access Will Deacon
2018-01-26 9:05 ` Yury Norov
2018-01-26 18:11 ` Will Deacon
2018-01-29 10:25 ` Yury Norov
2018-01-24 10:28 ` Arnd Bergmann
2018-01-24 15:48 ` Andy Shevchenko
2018-01-25 11:38 ` Yury Norov
2018-01-25 12:11 ` Robin Murphy
2018-01-25 13:59 ` Arnd Bergmann
2018-01-24 16:38 ` Jeffrey Walton [this message]
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