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From: David Marchand <david.marchand@redhat.com>
To: dev@dpdk.org
Cc: ferruh.yigit@amd.com, thomas@monjalon.net,
	bruce.richardson@intel.com, konstantin.v.ananyev@yandex.ru,
	ruifeng.wang@arm.com, zhoumin@loongson.cn,
	drc@linux.vnet.ibm.com, kda@semihalf.com,
	roretzla@linux.microsoft.com
Subject: [PATCH 0/2] Introduce x86 specific identification API
Date: Fri, 22 Sep 2023 11:37:19 +0200	[thread overview]
Message-ID: <20230922093722.2057688-1-david.marchand@redhat.com> (raw)

Rather than have every driver implement their own set of cpuid() ugly
stuff, provide an abstracted (gcc/clang vs MSVC) API for querying about
x86 processor details.

Note:
- coming up with a cross arch API seems a difficult task, hence a arch
  specific API has been preferred. If other arches have ideas how to
  abstract I am open to suggestions though I won't have the time to
  implement it for this release,
- usage of this arch specific API must not become the common practice
  and maintainers will have to be wary that drivers are still working
  fine with generic/common processor/arch features,


-- 
David Marchand

David Marchand (2):
  eal: introduce x86 processor identification
  common/mlx5: use EAL x86 processor identification

 MAINTAINERS                       |   1 +
 app/test/meson.build              |   1 +
 app/test/test_cpu.c               |  37 ++++++++
 drivers/common/mlx5/mlx5_common.c |  81 +++++------------
 lib/eal/common/eal_common_cpu.c   | 141 ++++++++++++++++++++++++++++++
 lib/eal/common/eal_cpu.h          |  77 ++++++++++++++++
 lib/eal/common/meson.build        |   1 +
 lib/eal/version.map               |   6 ++
 8 files changed, 285 insertions(+), 60 deletions(-)
 create mode 100644 app/test/test_cpu.c
 create mode 100644 lib/eal/common/eal_common_cpu.c
 create mode 100644 lib/eal/common/eal_cpu.h

-- 
2.41.0


             reply	other threads:[~2023-09-22  9:37 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-22  9:37 David Marchand [this message]
2023-09-22  9:37 ` [PATCH 1/2] eal: introduce x86 processor identification David Marchand
2023-09-22  9:46   ` Bruce Richardson
2023-09-25  9:42     ` David Marchand
2023-09-22 10:38   ` Bruce Richardson
2023-09-22 10:55     ` Bruce Richardson
2023-09-25  9:46     ` David Marchand
2023-09-25 10:16       ` Bruce Richardson
2023-09-25 10:52         ` Morten Brørup
2023-09-22  9:37 ` [PATCH 2/2] common/mlx5: use EAL " David Marchand

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