-----Original Message-----
From: linux-acpi-ow...@vger.kernel.org
[mailto:linux-acpi-ow...@vger.kernel.org] On Behalf Of Ben Guthro
Sent: Wednesday, June 26, 2013 10:06 PM
To: Konrad Rzeszutek Wilk; Jan Beulich; Rafaell J . Wysocki;
linux-kernel@vger.kernel.org; linux-a...@vger.kernel.org;
xen-de...@lists.xen.org
Cc: Ben Guthro; Moore, Robert
Subject: [PATCH v3 1/3] acpi: Call acpi_os_prepare_sleep hook in reduced
hardware sleep path
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: Ben Guthro <benjamin.gut...@citrix.com>
Signed-off-by: Jan Beulich <jbeul...@suse.com>
Cc: Bob Moore <robert.mo...@intel.com>
Cc: Rafaell J. Wysocki <r...@sisk.pl>
Cc: linux-a...@vger.kernel.org
---
drivers/acpi/acpica/hwesleep.c | 8 ++++++++
drivers/acpi/acpica/hwsleep.c | 2 +-
drivers/acpi/osl.c | 16 ++++++++--------
include/linux/acpi.h | 10 +++++-----
4 files changed, 22 insertions(+), 14 deletions(-)
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 5e5f762..6834dd7 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -43,6 +43,7 @@
*/
#include <acpi/acpi.h>
+#include <linux/acpi.h>
#include "accommon.h"
#define _COMPONENT ACPI_HARDWARE
@@ -128,6 +129,13 @@ 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 e3828cc..a93c299 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -153,7 +153,7 @@ 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/drivers/acpi/osl.c b/drivers/acpi/osl.c
index e721863..3fc2801 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -77,8 +77,8 @@ EXPORT_SYMBOL(acpi_in_debugger);
extern char line_buf[80];
#endif /*ENABLE_DEBUGGER */
-static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 pm1a_ctrl,
- u32 pm1b_ctrl);
+static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 val_a, u32 val_b,
+ u8 extended);
static acpi_osd_handler acpi_irq_handler;
static void *acpi_irq_context;
@@ -1757,13 +1757,13 @@ acpi_status acpi_os_terminate(void)
return AE_OK;
}
-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)
{
int rc = 0;
if (__acpi_os_prepare_sleep)
- rc = __acpi_os_prepare_sleep(sleep_state,
- pm1a_control, pm1b_control);
+ rc = __acpi_os_prepare_sleep(sleep_state, val_a, val_b,
+ extended);
if (rc < 0)
return AE_ERROR;
else if (rc > 0)
@@ -1772,8 +1772,8 @@ acpi_status acpi_os_prepare_sleep(u8 sleep_state,
u32 pm1a_control,
return AE_OK;
}
-void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
- u32 pm1a_ctrl, u32 pm1b_ctrl))
+void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, u32 val_a,
+ u32 val_b, u8 extended))
{
__acpi_os_prepare_sleep = func;
}
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 17b5b59..de99022 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -477,11 +477,11 @@ static inline bool acpi_driver_match_device(struct
device *dev,
#endif /* !CONFIG_ACPI */
#ifdef CONFIG_ACPI
-void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
- u32 pm1a_ctrl, u32 pm1b_ctrl));
+void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state, u32 val_a,
+ u32 val_b, u8 extended));
-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);
#ifdef CONFIG_X86
void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
#else
@@ -491,7 +491,7 @@ static inline void
arch_reserve_mem_area(acpi_physical_address addr,
}
#endif /* CONFIG_X86 */
#else
-#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while
(0)
+#define acpi_os_set_prepare_sleep(func, val_a, val_b, ext) do { } while (0)
#endif
#if defined(CONFIG_ACPI) && defined(CONFIG_PM_RUNTIME)
--
1.7.9.5
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