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From: Qing Wang <wangqing@vivo.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: vincent.guittot@linaro.org, peterz@infradead.org,
	dietmar.eggemann@arm.com, Wang Qing <wangqing@vivo.com>
Subject: [PATCH V2] arm64: add SCHED_CLUSTER's dependency on ACPI
Date: Sun, 24 Apr 2022 19:55:01 -0700	[thread overview]
Message-ID: <1650855303-91388-1-git-send-email-wangqing@vivo.com> (raw)

From: Wang Qing <wangqing@vivo.com>

cluster sched_domain configured by cpu_topology[].cluster_sibling, 
which is set by cluster_id, cluster_id can only get from ACPI.

If the system does not enable ACPI, cluster_id is always -1, even enable
SCHED_CLUSTER is invalid, this is misleading. 

So we add SCHED_CLUSTER's dependency on ACPI here.

Signed-off-by: Wang Qing <wangqing@vivo.com>
---
v2:
- just modify commit log
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 25b33feed800..edbe035cb0e3 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1199,6 +1199,7 @@ config SCHED_MC
 
 config SCHED_CLUSTER
 	bool "Cluster scheduler support"
+	depends on ACPI
 	help
 	  Cluster scheduler support improves the CPU scheduler's decision
 	  making when dealing with machines that have clusters of CPUs.
-- 
2.27.0.windows.1


WARNING: multiple messages have this Message-ID (diff)
From: Qing Wang <wangqing@vivo.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: vincent.guittot@linaro.org, peterz@infradead.org,
	dietmar.eggemann@arm.com, Wang Qing <wangqing@vivo.com>
Subject: [PATCH V2] arm64: add SCHED_CLUSTER's dependency on ACPI
Date: Sun, 24 Apr 2022 19:55:01 -0700	[thread overview]
Message-ID: <1650855303-91388-1-git-send-email-wangqing@vivo.com> (raw)

From: Wang Qing <wangqing@vivo.com>

cluster sched_domain configured by cpu_topology[].cluster_sibling, 
which is set by cluster_id, cluster_id can only get from ACPI.

If the system does not enable ACPI, cluster_id is always -1, even enable
SCHED_CLUSTER is invalid, this is misleading. 

So we add SCHED_CLUSTER's dependency on ACPI here.

Signed-off-by: Wang Qing <wangqing@vivo.com>
---
v2:
- just modify commit log
---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 25b33feed800..edbe035cb0e3 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1199,6 +1199,7 @@ config SCHED_MC
 
 config SCHED_CLUSTER
 	bool "Cluster scheduler support"
+	depends on ACPI
 	help
 	  Cluster scheduler support improves the CPU scheduler's decision
 	  making when dealing with machines that have clusters of CPUs.
-- 
2.27.0.windows.1


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             reply	other threads:[~2022-04-25  2:55 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-25  2:55 Qing Wang [this message]
2022-04-25  2:55 ` [PATCH V2] arm64: add SCHED_CLUSTER's dependency on ACPI Qing Wang
2022-04-25 10:06 ` Sudeep Holla
2022-04-25 10:06   ` Sudeep Holla
2022-04-25 11:18   ` 王擎
2022-04-25 11:18     ` 王擎
2022-04-25 16:59     ` Sudeep Holla
2022-04-25 16:59       ` Sudeep Holla
2022-04-26  2:23       ` 王擎
2022-04-26  2:23         ` 王擎
2022-04-26  6:40         ` Sudeep Holla
2022-04-26  6:40           ` Sudeep Holla
2022-04-26  6:52           ` 王擎
2022-04-26  6:52             ` 王擎
2022-04-26 13:25             ` Sudeep Holla
2022-04-26 13:25               ` Sudeep Holla
2022-04-26 19:14               ` Dietmar Eggemann
2022-04-26 19:14                 ` Dietmar Eggemann
2022-04-27  2:18                 ` 王擎
2022-04-27  2:18                   ` 王擎
2022-04-27 15:47                   ` Dietmar Eggemann
2022-04-27 15:47                     ` Dietmar Eggemann
2022-04-28  0:04                     ` 王擎
2022-04-28  0:04                       ` 王擎

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