From: Szabolcs Nagy <szabolcs.nagy@arm.com>
To: Joseph Myers <joseph@codesourcery.com>
Cc: nd@arm.com, libc-alpha@sourceware.org
Subject: Re: Add AArch64 hwcap values from Linux 4.17
Date: Tue, 05 Jun 2018 15:46:00 -0000 [thread overview]
Message-ID: <ba9bb020-331f-2ead-88ea-9f279feeda0e@arm.com> (raw)
In-Reply-To: <alpine.DEB.2.20.1806051520280.28715@digraph.polyomino.org.uk>
On 05/06/18 16:20, Joseph Myers wrote:
> On Tue, 5 Jun 2018, Szabolcs Nagy wrote:
>> On 04/06/18 21:56, Joseph Myers wrote:
>>> Linux 4.17 adds four new AArch64 hwcap values. This patch adds them
>>> to glibc's AArch64 bits/hwcap.h.
>>>
>>
>> dl-procinfo.c needs to be updated too.
>
> Thanks, here's an updated patch.
>
> Add AArch64 hwcap values from Linux 4.17.
>
> Linux 4.17 adds four new AArch64 hwcap values. This patch adds them
> to glibc's AArch64 bits/hwcap.h, with corresponding dl-procinfo.c
> updates.
>
> Tested with build-many-glibcs.py for aarch64.
>
This is OK to commit, thanks.
> 2018-06-05 Joseph Myers <joseph@codesourcery.com>
>
> * sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_DIT): New
> macro.
> (HWCAP_USCAT): Likewise.
> (HWCAP_ILRCPC): Likewise.
> (HWCAP_FLAGM): Likewise.
> * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
> Increase to 28.
> (_dl_aarch64_cap_flags): Add new flag names.
>
> diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
> index 6f05ec1..0837913 100644
> --- a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
> +++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
> @@ -45,3 +45,7 @@
> #define HWCAP_SHA512 (1 << 21)
> #define HWCAP_SVE (1 << 22)
> #define HWCAP_ASIMDFHM (1 << 23)
> +#define HWCAP_DIT (1 << 24)
> +#define HWCAP_USCAT (1 << 25)
> +#define HWCAP_ILRCPC (1 << 26)
> +#define HWCAP_FLAGM (1 << 27)
> diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
> index 054d5c8..2ac0635 100644
> --- a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
> +++ b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
> @@ -57,7 +57,7 @@ PROCINFO_CLASS struct cpu_features _dl_aarch64_cpu_features
> #endif
>
> /* Number of HWCAP bits set. */
> -#define _DL_HWCAP_COUNT 24
> +#define _DL_HWCAP_COUNT 28
>
> #if !defined PROCINFO_DECL && defined SHARED
> ._dl_aarch64_cap_flags
> @@ -69,7 +69,7 @@ PROCINFO_CLASS const char _dl_aarch64_cap_flags[_DL_HWCAP_COUNT][10]
> = { "fp", "asimd", "evtstrm", "aes", "pmull", "sha1", "sha2", "crc32",
> "atomics", "fphp", "asimdhp", "cpuid", "asimdrdm", "jscvt", "fcma",
> "lrcpc", "dcpop", "sha3", "sm3", "sm4", "asimddp", "sha512", "sve",
> - "asimdfhm" }
> + "asimdfhm", "dit", "uscat", "ilrcpc", "flagm" }
> #endif
> #if !defined SHARED || defined PROCINFO_DECL
> ;
>
>
prev parent reply other threads:[~2018-06-05 15:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-04 20:56 Joseph Myers
2018-06-05 8:57 ` Szabolcs Nagy
2018-06-05 15:21 ` Joseph Myers
2018-06-05 15:46 ` Szabolcs Nagy [this message]
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