Date: Thu, 19 Oct 2017 11:30:57 -0700 From: John Baldwin <jhb@freebsd.org> To: freebsd-arm@freebsd.org Cc: Jan Beich <jbeich@freebsd.org> Subject: Re: AT_HWCAP support on aarch64 Message-ID: <3317147.pUqZiAYRoN@ralph.baldwin.cx> In-Reply-To: <mv4o-ovdt-wny@FreeBSD.org> References: <mv4o-ovdt-wny@FreeBSD.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thursday, October 19, 2017 02:04:46 AM Jan Beich wrote: > armv6 and armv7 recently gained support to check NEON or VFP* at runtime. > However, some ports want to take advantage of AES, CRC32, SHA1, SHA256 > acceleration on aarch64 as well. > > Do you plan to support any HWCAP_* for AT_HWCAP on aarch64? > > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223016 > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=223019 (ditto Chromium) > http://elixir.free-electrons.com/linux/latest/source/arch/arm64/include/uapi/asm/hwcap.h I think there is certainly a desire to do so, it should just be a matter of populating a hwcap variable and setting it in sysentvec. -- John Baldwin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3317147.pUqZiAYRoN>