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From: Qing Wang <wangqing@vivo.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: vincent.guittot@linaro.org, dietmar.eggemann@arm.com,
	Wang Qing <wangqing@vivo.com>
Subject: [PATCH V2 0/2] Add complex scheduler level for arm64
Date: Fri, 22 Apr 2022 04:51:24 -0700	[thread overview]
Message-ID: <1650628289-67716-1-git-send-email-wangqing@vivo.com> (raw)

From: Wang Qing <wangqing@vivo.com>

The DSU cluster supports blocks that are called complexes
which contain up to two cores of the same type and some shared logic,
which sharing some logic between the cores can make a complex area efficient.

Complex also can be considered as a shared cache group smaller
than cluster.

This patch adds complex level for complexs by parsing cache topology
form DT. It will directly benefit a lot of workload which loves more
resources such as memory bandwidth, caches.

Note this patch only handle the DT case.

V2:
fix commit log and loop more

wangqing (2):
  arch_topology: support for describing cache topology from DT
  arm64: Add complex scheduler level for arm64

 arch/arm64/Kconfig            | 13 ++++++++++
 arch/arm64/kernel/smp.c       | 48 ++++++++++++++++++++++++++++++++++-
 drivers/base/arch_topology.c  | 47 +++++++++++++++++++++++++++++++++-
 include/linux/arch_topology.h |  3 +++
 4 files changed, 109 insertions(+), 2 deletions(-)

-- 
2.7.4


             reply	other threads:[~2022-04-22 11:52 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-22 11:51 Qing Wang [this message]
2022-04-22 11:51 ` [PATCH V2 1/2] arch_topology: support for parsing cache topology from DT Qing Wang
2022-04-22 12:30   ` Greg Kroah-Hartman
2022-04-24  2:53     ` [PATCH V2 RESEND " 王擎
2022-04-22 11:51 ` [PATCH V2 2/2] arm64: Add complex scheduler level for arm64 Qing Wang
2022-04-22 12:31   ` Greg Kroah-Hartman
2022-04-24  2:26     ` 王擎
2022-04-26 18:15   ` kernel test robot
2022-04-25 13:19 ` [PATCH V2 0/2] " Jonathan Cameron
2022-04-26  3:06   ` 王擎
2022-04-26  7:05     ` 王擎
2022-04-26 13:27       ` Sudeep Holla

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