From: David Marchand <david.marchand@redhat.com>
To: Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
Phil Yang <phil.yang@arm.com>
Cc: Gage Eads <gage.eads@intel.com>, dev <dev@dpdk.org>,
Thomas Monjalon <thomas@monjalon.net>,
Hemant Agrawal <hemant.agrawal@nxp.com>,
Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
Gavin Hu <gavin.hu@arm.com>, nd <nd@arm.com>,
Bruce Richardson <bruce.richardson@intel.com>
Subject: Re: [dpdk-dev] [PATCH v11 1/3] eal/arm64: add 128-bit atomic compare exchange
Date: Fri, 18 Oct 2019 16:16:06 +0200 [thread overview]
Message-ID: <CAJFAV8zvxrbnzAo629QsUZ7tN9tTThNcQuJVfSve_PvgkktUmw@mail.gmail.com> (raw)
In-Reply-To: <1571397690-14116-1-git-send-email-phil.yang@arm.com>
On Fri, Oct 18, 2019 at 1:22 PM Phil Yang <phil.yang@arm.com> wrote:
>
> This patch adds the implementation of the 128-bit atomic compare
> exchange API on AArch64. Using 64-bit 'ldxp/stxp' instructions
> can perform this operation. Moreover, on the LSE atomic extension
> accelerated platforms, it implemented by 'casp' instructions for
> better performance.
>
> Since the '__ARM_FEATURE_ATOMICS' flag only supports GCC-9, so this
> patch adds a new config flag 'RTE_ARM_FEATURE_ATOMICS' to enable the
> 'cas' version on elder version compilers.
Jerin, Phil,
I am getting a build error on the octeontx2 target:
{standard input}: Assembler messages:
{standard input}:672: Error: selected processor does not support `casp
x0,x1,x2,x3,[x4]'
{standard input}:690: Error: selected processor does not support
`caspa x0,x1,x2,x3,[x4]'
{standard input}:708: Error: selected processor does not support
`caspl x0,x1,x2,x3,[x4]'
{standard input}:726: Error: selected processor does not support
`caspal x0,x1,x2,x3,[x4]'
ninja: build stopped: subcommand failed.
Looking into the meson logs, I can see:
Native C compiler: ccache gcc (gcc 9.2.1 "gcc (GCC) 9.2.1 20190827
(Red Hat 9.2.1-1)")
Cross C compiler: aarch64-linux-gnu-gcc (gcc 8.2.1)
Host machine cpu family: aarch64
Host machine cpu: armv8-a
Target machine cpu family: aarch64
Target machine cpu: armv8-a
Build machine cpu family: x86_64
Build machine cpu: x86_64
...
Message: Implementer : Cavium
Compiler for C supports arguments -mcpu=octeontx2: NO
Message: []
Fetching value of define "__ARM_NEON" : 1
Fetching value of define "__ARM_FEATURE_CRC32" :
Fetching value of define "__ARM_FEATURE_CRYPTO" :
My toolchain does not support the octeontx2 target, but
RTE_ARM_FEATURE_ATOMICS ends up being set in the configuration anyway.
Tried with Linaro toolchains (4.7.1, 7.4) mentionned in the dpdk
documentation, same result.
Looking at config/arm/meson.build, the "extra machine specific flags"
are appended to the configuration, regardless of what the compiler
replied when testing the machine args.
--
David Marchand
next prev parent reply other threads:[~2019-10-18 14:16 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-23 2:41 [dpdk-dev] [PATCH v1 1/3] eal/arm64: add 128-bit atomic compare exchange Phil Yang
2019-06-23 2:41 ` [dpdk-dev] [PATCH v1 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-06-23 2:41 ` [dpdk-dev] [PATCH v1 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-06-23 3:15 ` [dpdk-dev] [PATCH v2 1/3] eal/arm64: add 128-bit atomic compare exchange Phil Yang
2019-06-23 3:15 ` [dpdk-dev] [PATCH v2 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-06-24 15:09 ` Eads, Gage
2019-06-24 15:29 ` Phil Yang (Arm Technology China)
2019-06-23 3:15 ` [dpdk-dev] [PATCH v2 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-06-24 15:15 ` Eads, Gage
2019-06-24 15:22 ` Phil Yang (Arm Technology China)
2019-06-24 14:46 ` [dpdk-dev] [PATCH v2 1/3] eal/arm64: add 128-bit atomic compare exchange Eads, Gage
2019-06-24 15:35 ` Phil Yang (Arm Technology China)
2019-06-28 8:11 ` [dpdk-dev] [PATCH v3 " Phil Yang
2019-06-28 8:11 ` [dpdk-dev] [PATCH v3 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-06-29 0:17 ` Eads, Gage
2019-07-19 4:03 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-06-28 8:11 ` [dpdk-dev] [PATCH v3 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-06-29 0:18 ` Eads, Gage
2019-07-19 4:18 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-07-19 4:42 ` Eads, Gage
2019-07-19 5:02 ` Jerin Jacob Kollanukkaran
2019-07-19 5:15 ` Phil Yang (Arm Technology China)
2019-07-03 12:25 ` [dpdk-dev] [EXT] [PATCH v3 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob Kollanukkaran
2019-07-03 13:07 ` Jerin Jacob Kollanukkaran
2019-07-05 4:20 ` Honnappa Nagarahalli
2019-07-05 4:37 ` Pavan Nikhilesh Bhagavatula
2019-07-09 9:27 ` Phil Yang (Arm Technology China)
2019-07-09 11:14 ` Jerin Jacob Kollanukkaran
2019-07-19 6:24 ` Jerin Jacob Kollanukkaran
2019-07-19 11:01 ` Phil Yang (Arm Technology China)
2019-07-19 12:35 ` Jerin Jacob Kollanukkaran
2019-07-19 13:56 ` Phil Yang (Arm Technology China)
2019-07-19 14:50 ` Eads, Gage
2019-07-22 8:44 ` [dpdk-dev] [PATCH v4 " Phil Yang
2019-07-22 8:44 ` [dpdk-dev] [PATCH v4 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-07-22 8:44 ` [dpdk-dev] [PATCH v4 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-07-22 10:22 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-07-22 11:51 ` Phil Yang (Arm Technology China)
2019-07-22 10:20 ` [dpdk-dev] [EXT] [PATCH v4 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob Kollanukkaran
2019-07-22 11:50 ` Phil Yang (Arm Technology China)
2019-07-22 13:06 ` [dpdk-dev] [PATCH v5 " Phil Yang
2019-07-22 13:06 ` [dpdk-dev] [PATCH v5 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-07-22 13:06 ` [dpdk-dev] [PATCH v5 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-07-22 14:14 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-07-22 15:19 ` Phil Yang (Arm Technology China)
2019-07-22 14:34 ` [dpdk-dev] " Eads, Gage
2019-07-22 14:43 ` Phil Yang (Arm Technology China)
2019-07-22 14:19 ` [dpdk-dev] [EXT] [PATCH v5 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob Kollanukkaran
2019-07-22 16:23 ` Phil Yang (Arm Technology China)
2019-07-22 16:22 ` [dpdk-dev] [PATCH v6 " Phil Yang
2019-07-22 16:22 ` [dpdk-dev] [PATCH v6 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-07-22 16:22 ` [dpdk-dev] [PATCH v6 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-07-22 16:59 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-07-22 16:57 ` [dpdk-dev] [EXT] [PATCH v6 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob Kollanukkaran
2019-07-23 3:28 ` Phil Yang (Arm Technology China)
2019-07-23 7:09 ` Jerin Jacob Kollanukkaran
2019-07-23 7:53 ` Phil Yang (Arm Technology China)
2019-07-23 5:57 ` [dpdk-dev] [PATCH v7 " Phil Yang
2019-07-23 5:57 ` [dpdk-dev] [PATCH v7 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-07-23 5:57 ` [dpdk-dev] [PATCH v7 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-07-23 7:05 ` [dpdk-dev] [PATCH v8 1/3] eal/arm64: add 128-bit atomic compare exchange jerinj
2019-07-23 7:05 ` [dpdk-dev] [PATCH v8 2/3] test/atomic: add 128b compare and swap test jerinj
2019-07-23 7:05 ` [dpdk-dev] [PATCH v8 3/3] eal/stack: enable lock-free stack for aarch64 jerinj
2019-08-14 8:27 ` [dpdk-dev] [PATCH v9 1/3] eal/arm64: add 128-bit atomic compare exchange Phil Yang
2019-08-14 8:27 ` [dpdk-dev] [PATCH v9 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-10-14 15:45 ` David Marchand
2019-10-15 11:32 ` Phil Yang (Arm Technology China)
2019-08-14 8:27 ` [dpdk-dev] [PATCH v9 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-10-14 15:45 ` David Marchand
2019-10-15 11:32 ` Phil Yang (Arm Technology China)
2019-10-14 15:43 ` [dpdk-dev] [PATCH v9 1/3] eal/arm64: add 128-bit atomic compare exchange David Marchand
2019-10-15 11:32 ` Phil Yang (Arm Technology China)
2019-10-15 12:16 ` David Marchand
2019-10-16 9:04 ` Phil Yang (Arm Technology China)
2019-10-17 12:45 ` David Marchand
2019-10-15 11:38 ` [dpdk-dev] [PATCH v10 " Phil Yang
2019-10-15 11:38 ` [dpdk-dev] [PATCH v10 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-10-15 11:38 ` [dpdk-dev] [PATCH v10 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-10-18 11:21 ` [dpdk-dev] [PATCH v11 1/3] eal/arm64: add 128-bit atomic compare exchange Phil Yang
2019-10-18 11:21 ` [dpdk-dev] [PATCH v11 2/3] test/atomic: add 128b compare and swap test Phil Yang
2019-10-21 8:25 ` David Marchand
2019-10-18 11:21 ` [dpdk-dev] [PATCH v11 3/3] eal/stack: enable lock-free stack for aarch64 Phil Yang
2019-10-21 8:26 ` David Marchand
2019-10-18 14:16 ` David Marchand [this message]
2019-10-18 14:24 ` [dpdk-dev] [PATCH v11 1/3] eal/arm64: add 128-bit atomic compare exchange Jerin Jacob
2019-10-18 14:33 ` David Marchand
2019-10-18 14:36 ` Jerin Jacob
2019-10-21 8:24 ` David Marchand
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