Revision: 17805
http://sourceforge.net/p/edk2/code/17805
Author: abiesheuvel
Date: 2015-07-02 06:36:29 +0000 (Thu, 02 Jul 2015)
Log Message:
-----------
IntelFrameworkModulePkg: AcpiS3SaveDxe: call S3Ready() at End-of-Dxe
Call S3Ready() whenever the first of the following occurs:
- a driver signals End-of-Dxe,
- a driver calls EFI_ACPI_S3_SAVE_PROTOCOL.S3Save().
S3Ready() already contains a static, function scope "latch" that causes it
to exit early when called for the second time or later.
(At the moment, the only platform in the edk2 tree that includes this
driver is Vlv2TbltDevicePkg. That platform does not signal End-of-Dxe
(yet).)
http://thread.gmane.org/gmane.comp.bios.tianocore.devel/16088/focus=16146
Suggested-by: Yao Jiewen <[email protected]>
Cc: Yao Jiewen <[email protected]>
Cc: Jeff Fan <[email protected]>
Cc: David Wei <[email protected]>
Cc: Tim He <[email protected]>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <[email protected]>
Modified Paths:
--------------
trunk/edk2/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.c
trunk/edk2/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3SaveDxe.inf
Modified:
trunk/edk2/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.c
===================================================================
---
trunk/edk2/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.c
2015-07-02 06:36:19 UTC (rev 17804)
+++
trunk/edk2/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3Save.c
2015-07-02 06:36:29 UTC (rev 17805)
@@ -28,6 +28,7 @@
#include <Guid/AcpiVariableCompatibility.h>
#include <Guid/AcpiS3Context.h>
#include <Guid/Acpi.h>
+#include <Guid/EventGroup.h>
#include <Protocol/AcpiS3Save.h>
#include <IndustryStandard/Acpi.h>
@@ -550,6 +551,40 @@
}
/**
+ Callback function executed when the EndOfDxe event group is signaled.
+
+ @param[in] Event Event whose notification function is being invoked.
+ @param[in] Context The pointer to the notification function's context, which
+ is implementation-dependent.
+**/
+VOID
+EFIAPI
+OnEndOfDxe (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Our S3Ready() function ignores both of its parameters, and always
+ // succeeds.
+ //
+ Status = S3Ready (
+ NULL, // This
+ NULL // LegacyMemoryAddress
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Close the event, deregistering the callback and freeing resources.
+ //
+ Status = gBS->CloseEvent (Event);
+ ASSERT_EFI_ERROR (Status);
+}
+
+
+/**
The Driver Entry Point.
The function is the driver Entry point which will produce AcpiS3SaveProtocol.
@@ -570,6 +605,7 @@
)
{
EFI_STATUS Status;
+ EFI_EVENT EndOfDxeEvent;
if (!FeaturePcdGet(PcdPlatformCsmSupport)) {
//
@@ -591,5 +627,15 @@
&mS3Save
);
ASSERT_EFI_ERROR (Status);
+
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ OnEndOfDxe,
+ NULL, /* NotifyContext */
+ &gEfiEndOfDxeEventGroupGuid,
+ &EndOfDxeEvent
+ );
+ ASSERT_EFI_ERROR (Status);
return Status;
}
Modified:
trunk/edk2/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3SaveDxe.inf
===================================================================
---
trunk/edk2/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3SaveDxe.inf
2015-07-02 06:36:19 UTC (rev 17804)
+++
trunk/edk2/IntelFrameworkModulePkg/Universal/Acpi/AcpiS3SaveDxe/AcpiS3SaveDxe.inf
2015-07-02 06:36:29 UTC (rev 17805)
@@ -60,6 +60,7 @@
## SOMETIMES_CONSUMES ## Variable:L"AcpiGlobalVariable"
## SOMETIMES_PRODUCES ## Variable:L"AcpiGlobalVariable"
gEfiAcpiVariableCompatiblityGuid
+ gEfiEndOfDxeEventGroupGuid ## CONSUMES ## Event
[Protocols]
gEfiAcpiS3SaveProtocolGuid ## PRODUCES
------------------------------------------------------------------------------
Don't Limit Your Business. Reach for the Cloud.
GigeNET's Cloud Solutions provide you with the tools and support that
you need to offload your IT needs and focus on growing your business.
Configured For All Businesses. Start Your Cloud Today.
https://www.gigenetcloud.com/
_______________________________________________
edk2-commits mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/edk2-commits
