diff mbox series

[v18,5/7] clocksource: Add clocksource id for arm arch counter

Message ID 20210208134029.3269384-6-maz@kernel.org
State New
Headers show
Series KVM: arm64: Add host/guest KVM-PTP support | expand

Commit Message

Marc Zyngier Feb. 8, 2021, 1:40 p.m. UTC
From: Jianyong Wu <jianyong.wu@arm.com>

Add clocksource id to the ARM generic counter so that it can be easily
identified from callers such as ptp_kvm.

Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201209060932.212364-6-jianyong.wu@arm.com
---
 drivers/clocksource/arm_arch_timer.c | 2 ++
 include/linux/clocksource_ids.h      | 1 +
 2 files changed, 3 insertions(+)

Comments

Andre Przywara Feb. 10, 2021, 4:22 p.m. UTC | #1
On Mon,  8 Feb 2021 13:40:27 +0000
Marc Zyngier <maz@kernel.org> wrote:

> From: Jianyong Wu <jianyong.wu@arm.com>

> 

> Add clocksource id to the ARM generic counter so that it can be easily

> identified from callers such as ptp_kvm.

> 

> Cc: Mark Rutland <mark.rutland@arm.com>

> Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>

> Signed-off-by: Marc Zyngier <maz@kernel.org>

> Link: https://lore.kernel.org/r/20201209060932.212364-6-jianyong.wu@arm.com


Reviewed-by: Andre Przywara <andre.przywara@arm.com>


Cheers,
Andre

> ---

>  drivers/clocksource/arm_arch_timer.c | 2 ++

>  include/linux/clocksource_ids.h      | 1 +

>  2 files changed, 3 insertions(+)

> 

> diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c

> index d0177824c518..8f12e223703f 100644

> --- a/drivers/clocksource/arm_arch_timer.c

> +++ b/drivers/clocksource/arm_arch_timer.c

> @@ -16,6 +16,7 @@

>  #include <linux/cpu_pm.h>

>  #include <linux/clockchips.h>

>  #include <linux/clocksource.h>

> +#include <linux/clocksource_ids.h>

>  #include <linux/interrupt.h>

>  #include <linux/of_irq.h>

>  #include <linux/of_address.h>

> @@ -191,6 +192,7 @@ static u64 arch_counter_read_cc(const struct cyclecounter *cc)

>  

>  static struct clocksource clocksource_counter = {

>  	.name	= "arch_sys_counter",

> +	.id	= CSID_ARM_ARCH_COUNTER,

>  	.rating	= 400,

>  	.read	= arch_counter_read,

>  	.mask	= CLOCKSOURCE_MASK(56),

> diff --git a/include/linux/clocksource_ids.h b/include/linux/clocksource_ids.h

> index 4d8e19e05328..16775d7d8f8d 100644

> --- a/include/linux/clocksource_ids.h

> +++ b/include/linux/clocksource_ids.h

> @@ -5,6 +5,7 @@

>  /* Enum to give clocksources a unique identifier */

>  enum clocksource_ids {

>  	CSID_GENERIC		= 0,

> +	CSID_ARM_ARCH_COUNTER,

>  	CSID_MAX,

>  };

>
diff mbox series

Patch

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index d0177824c518..8f12e223703f 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -16,6 +16,7 @@ 
 #include <linux/cpu_pm.h>
 #include <linux/clockchips.h>
 #include <linux/clocksource.h>
+#include <linux/clocksource_ids.h>
 #include <linux/interrupt.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
@@ -191,6 +192,7 @@  static u64 arch_counter_read_cc(const struct cyclecounter *cc)
 
 static struct clocksource clocksource_counter = {
 	.name	= "arch_sys_counter",
+	.id	= CSID_ARM_ARCH_COUNTER,
 	.rating	= 400,
 	.read	= arch_counter_read,
 	.mask	= CLOCKSOURCE_MASK(56),
diff --git a/include/linux/clocksource_ids.h b/include/linux/clocksource_ids.h
index 4d8e19e05328..16775d7d8f8d 100644
--- a/include/linux/clocksource_ids.h
+++ b/include/linux/clocksource_ids.h
@@ -5,6 +5,7 @@ 
 /* Enum to give clocksources a unique identifier */
 enum clocksource_ids {
 	CSID_GENERIC		= 0,
+	CSID_ARM_ARCH_COUNTER,
 	CSID_MAX,
 };