diff mbox

[v5,2/5] acpi: Call acpi_os_prepare_sleep hook in reduced hardware sleep path

Message ID 1372427184-6197-3-git-send-email-benjamin.guthro@citrix.com (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Ben Guthro June 28, 2013, 1:46 p.m. UTC
In version 3.4 acpi_os_prepare_sleep() got introduced in parallel with
reduced hardware sleep support, and the two changes didn't get
synchronized: The new code doesn't call the hook function (if so
requested). Fix this, requiring a parameter to be added to the
hook function to distinguish "extended" from "legacy" sleep.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Ben Guthro <benjamin.guthro@citrix.com>
Cc: Bob Moore <robert.moore@intel.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: linux-acpi@vger.kernel.org
---
 drivers/acpi/acpica/hwesleep.c |    7 +++++++
 drivers/acpi/acpica/hwsleep.c  |    2 +-
 include/acpi/acpiosxf.h        |    4 ++--
 3 files changed, 10 insertions(+), 3 deletions(-)

Comments

Konrad Rzeszutek Wilk June 28, 2013, 4:06 p.m. UTC | #1
On Fri, Jun 28, 2013 at 09:46:21AM -0400, Ben Guthro wrote:
> In version 3.4 acpi_os_prepare_sleep() got introduced in parallel with
> reduced hardware sleep support, and the two changes didn't get
> synchronized: The new code doesn't call the hook function (if so
> requested). Fix this, requiring a parameter to be added to the
> hook function to distinguish "extended" from "legacy" sleep.
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
> Signed-off-by: Ben Guthro <benjamin.guthro@citrix.com>
> Cc: Bob Moore <robert.moore@intel.com>
> Cc: Rafael J. Wysocki <rjw@sisk.pl>
> Cc: linux-acpi@vger.kernel.org

You can also add
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

> ---
>  drivers/acpi/acpica/hwesleep.c |    7 +++++++
>  drivers/acpi/acpica/hwsleep.c  |    2 +-
>  include/acpi/acpiosxf.h        |    4 ++--
>  3 files changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
> index 5e5f762..69b3e15 100644
> --- a/drivers/acpi/acpica/hwesleep.c
> +++ b/drivers/acpi/acpica/hwesleep.c
> @@ -128,6 +128,13 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state)
>  
>  	ACPI_FLUSH_CPU_CACHE();
>  
> +	status = acpi_os_prepare_sleep(sleep_state, acpi_gbl_sleep_type_a,
> +				       acpi_gbl_sleep_type_b, TRUE);
> +	if (ACPI_SKIP(status))
> +		return_ACPI_STATUS(AE_OK);
> +	if (ACPI_FAILURE(status))
> +		return_ACPI_STATUS(status);
> +
>  	/*
>  	 * Set the SLP_TYP and SLP_EN bits.
>  	 *
> diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
> index 867b947..cf78157 100644
> --- a/drivers/acpi/acpica/hwsleep.c
> +++ b/drivers/acpi/acpica/hwsleep.c
> @@ -152,7 +152,7 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
>  	ACPI_FLUSH_CPU_CACHE();
>  
>  	status = acpi_os_prepare_sleep(sleep_state, pm1a_control,
> -				       pm1b_control);
> +				       pm1b_control, FALSE);
>  	if (ACPI_SKIP(status))
>  		return_ACPI_STATUS(AE_OK);
>  	if (ACPI_FAILURE(status))
> diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
> index c68b779..51d0f78 100644
> --- a/include/acpi/acpiosxf.h
> +++ b/include/acpi/acpiosxf.h
> @@ -279,7 +279,7 @@ void acpi_os_close_directory(void *dir_handle);
>  /*
>   * ACPI sleep preparation
>   */
> -acpi_status acpi_os_prepare_sleep(u8 sleep_state,
> -				  u32 pm1a_control, u32 pm1b_control);
> +acpi_status acpi_os_prepare_sleep(u8 sleep_state, u32 val_a, u32 val_b,
> +				  u8 extended);
>  
>  #endif				/* __ACPIOSXF_H__ */
> -- 
> 1.7.9.5
> 
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diff mbox

Patch

diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 5e5f762..69b3e15 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -128,6 +128,13 @@  acpi_status acpi_hw_extended_sleep(u8 sleep_state)
 
 	ACPI_FLUSH_CPU_CACHE();
 
+	status = acpi_os_prepare_sleep(sleep_state, acpi_gbl_sleep_type_a,
+				       acpi_gbl_sleep_type_b, TRUE);
+	if (ACPI_SKIP(status))
+		return_ACPI_STATUS(AE_OK);
+	if (ACPI_FAILURE(status))
+		return_ACPI_STATUS(status);
+
 	/*
 	 * Set the SLP_TYP and SLP_EN bits.
 	 *
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 867b947..cf78157 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -152,7 +152,7 @@  acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 	ACPI_FLUSH_CPU_CACHE();
 
 	status = acpi_os_prepare_sleep(sleep_state, pm1a_control,
-				       pm1b_control);
+				       pm1b_control, FALSE);
 	if (ACPI_SKIP(status))
 		return_ACPI_STATUS(AE_OK);
 	if (ACPI_FAILURE(status))
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index c68b779..51d0f78 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -279,7 +279,7 @@  void acpi_os_close_directory(void *dir_handle);
 /*
  * ACPI sleep preparation
  */
-acpi_status acpi_os_prepare_sleep(u8 sleep_state,
-				  u32 pm1a_control, u32 pm1b_control);
+acpi_status acpi_os_prepare_sleep(u8 sleep_state, u32 val_a, u32 val_b,
+				  u8 extended);
 
 #endif				/* __ACPIOSXF_H__ */