diff mbox

[1/7] arm-cci: Do not enable CCI-400 PMU by default

Message ID 1432633996-7229-2-git-send-email-suzuki.poulose@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Suzuki K Poulose May 26, 2015, 9:53 a.m. UTC 
From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>

Do not enable CCI-400 PMU by default and fix the dependency on PERF_EVENTS
than HW_PERF_EVENTS.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Cc: arm@kernel.org
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
---
Changes since V1:
 - Make CCI400_PMU depend on CPU_V7 for ARM (Suggested by: Russell)
---
 drivers/bus/Kconfig |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

Comments

Suzuki K Poulose May 29, 2015, 10:06 a.m. UTC | #1 
On 26/05/15 10:53, Suzuki K. Poulose wrote:
> From: "Suzuki K. Poulose" <suzuki.poulose@arm.com>
>
> Do not enable CCI-400 PMU by default and fix the dependency on PERF_EVENTS
> than HW_PERF_EVENTS.
>
> Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
> Cc: Will Deacon <will.deacon@arm.com>
> Cc: arm@kernel.org
> Cc: Russell King <rmk+kernel@arm.linux.org.uk>
> Signed-off-by: Suzuki K. Poulose <suzuki.poulose@arm.com>
Forgot to add :

Acked-by: Punit Agrawal <punit.agrawal@arm.com>

from https://patchwork.kernel.org/patch/6387121/

Thanks
Suzuki
diff mbox

Patch

diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index a1d4af6..a6b37d4 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -13,15 +13,13 @@  config ARM_CCI400_COMMON
 
 config ARM_CCI400_PMU
 	bool "ARM CCI400 PMU support"
-	default y
-	depends on ARM || ARM64
-	depends on HW_PERF_EVENTS
+	depends on (ARM && CPU_V7) || ARM64
+	depends on PERF_EVENTS
 	select ARM_CCI400_COMMON
 	help
-	  Support for PMU events monitoring on the ARM CCI cache coherent
-	  interconnect.
-
-	  If unsure, say Y
+	  Support for PMU events monitoring on the ARM CCI-400 (cache coherent
+	  interconnect). CCI-400 supports counting events related to the
+	  connected slave/master interfaces.
 
 config ARM_CCI400_PORT_CTRL
 	bool