ArmPkg: Create MpCoreInfo PPI and HOB to describe CPU Cores on a MPCore platform

These info are:
- ClusterId, CoreId
- MailBox Set/Get/Clear address



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12423 6f19259b-4bc3-4df7-8a09-765794883524

4 files changed, 129 insertions, 1 deletions

diff --git a/ArmPkg/Drivers/CpuDxe/CpuDxe.c b/ArmPkg/Drivers/CpuDxe/CpuDxe.c
index cea333f91d..f14a676383 100644
--- a/ArmPkg/Drivers/CpuDxe/CpuDxe.c
+++ b/ArmPkg/Drivers/CpuDxe/CpuDxe.c
@@ -257,6 +257,12 @@ CpuDxeInitialize (
   //

   SyncCacheConfig (&mCpu);

   

+  // If the platform is a MPCore system then install the Configuration Table describing the

+  // secondary core states

+  if (ArmIsMPCore()) {

+    PublishArmProcessorTable();

+  }

+

   //

   // Setup a callback for idle events

   //

diff --git a/ArmPkg/Drivers/CpuDxe/CpuDxe.h b/ArmPkg/Drivers/CpuDxe/CpuDxe.h
index 70f77ca059..6349d8087f 100644
--- a/ArmPkg/Drivers/CpuDxe/CpuDxe.h
+++ b/ArmPkg/Drivers/CpuDxe/CpuDxe.h
@@ -124,6 +124,20 @@ ConvertSectionToPages (
   IN EFI_PHYSICAL_ADDRESS  BaseAddress

   );

 

+/**

+ * Publish ARM Processor Data table in UEFI SYSTEM Table.

+ * @param  HobStart               Pointer to the beginning of the HOB List from PEI.

+ *

+ * Description : This function iterates through HOB list and finds ARM processor Table Entry HOB.

+ *               If  the ARM processor Table Entry HOB is found, the HOB data is copied to run-time memory

+ *               and a pointer is assigned to it in ARM processor table. Then the ARM processor table is

+ *               installed in EFI configuration table.

+**/

+VOID

+EFIAPI

+PublishArmProcessorTable(

+  VOID

+  );

 

 extern VIRTUAL_UNCACHED_PAGES_PROTOCOL  gVirtualUncachedPages;

 

diff --git a/ArmPkg/Drivers/CpuDxe/CpuDxe.inf b/ArmPkg/Drivers/CpuDxe/CpuDxe.inf
index 231257cc1a..e5709a63d0 100644
--- a/ArmPkg/Drivers/CpuDxe/CpuDxe.inf
+++ b/ArmPkg/Drivers/CpuDxe/CpuDxe.inf
@@ -27,6 +27,7 @@
 [Sources.ARM]

   CpuDxe.c

   CpuDxe.h

+  CpuMpCore.c

   Exception.c

 

 #

@@ -40,7 +41,7 @@
 #

   ExceptionSupport.ARMv6.asm | RVCT

   ExceptionSupport.ARMv6.S   | GCC

-  Mmu.c

+  Mmu.c  

 

 

 [Packages]

@@ -50,13 +51,16 @@
   MdeModulePkg/MdeModulePkg.dec

 

 [LibraryClasses]

+  ArmLib

   BaseMemoryLib

   CacheMaintenanceLib

   CpuLib

   DebugLib

   DefaultExceptionHandlerLib

   DxeServicesTableLib

+  HobLib

   PeCoffGetEntryPointLib

+  UefiDriverEntryPoint

   UefiLib

 

 [Protocols]

@@ -66,6 +70,7 @@
 

 [Guids]

   gEfiDebugImageInfoTableGuid

+  gArmMpCoreInfoGuid

   gIdleLoopEventGuid

 

 [Pcd.common]

diff --git a/ArmPkg/Drivers/CpuDxe/CpuMpCore.c b/ArmPkg/Drivers/CpuDxe/CpuMpCore.c
new file mode 100644
index 0000000000..49bc25c8c5
--- /dev/null
+++ b/ArmPkg/Drivers/CpuDxe/CpuMpCore.c
@@ -0,0 +1,103 @@
+/** @file

+*

+*  Copyright (c) 2011, ARM Limited. All rights reserved.

+*  

+*  This program and the accompanying materials                          

+*  are licensed and made available under the terms and conditions of the BSD License         

+*  which accompanies this distribution.  The full text of the license may be found at        

+*  http://opensource.org/licenses/bsd-license.php                                            

+*

+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     

+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             

+*

+**/

+

+#include <Library/UefiBootServicesTableLib.h>

+#include <Library/BaseMemoryLib.h>

+#include <Library/HobLib.h>

+#include <Library/DebugLib.h>

+#include <Library/MemoryAllocationLib.h>

+

+#include <Guid/ArmMpCoreInfo.h>

+

+ARM_PROCESSOR_TABLE mArmProcessorTableTemplate = {

+  {

+    EFI_ARM_PROCESSOR_TABLE_SIGNATURE,

+    0,

+    EFI_ARM_PROCESSOR_TABLE_REVISION,

+    EFI_ARM_PROCESSOR_TABLE_OEM_ID,

+    EFI_ARM_PROCESSOR_TABLE_OEM_TABLE_ID,

+    EFI_ARM_PROCESSOR_TABLE_OEM_REVISION,

+    EFI_ARM_PROCESSOR_TABLE_CREATOR_ID,

+    EFI_ARM_PROCESSOR_TABLE_CREATOR_REVISION,

+    0,

+    0

+  },   //ARM Processor table header

+  0,   // Number of entries in ARM processor Table

+  NULL // ARM Processor Table

+};

+

+/** Publish ARM Processor Data table in UEFI SYSTEM Table.

+ * @param:  HobStart               Pointer to the beginning of the HOB List from PEI.

+ *

+ * Description : This function iterates through HOB list and finds ARM processor Table Entry HOB.

+ *               If  the ARM processor Table Entry HOB is found, the HOB data is copied to run-time memory

+ *               and a pointer is assigned to it in ARM processor table. Then the ARM processor table is

+ *               installed in EFI configuration table.

+**/

+VOID

+EFIAPI

+PublishArmProcessorTable (

+  VOID

+  )

+{

+  EFI_PEI_HOB_POINTERS    Hob;

+

+  Hob.Raw = GetHobList ();

+

+  // Iterate through the HOBs and find if there is ARM PROCESSOR ENTRY HOB

+  for (; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {

+    // Check for Correct HOB type

+    if ((GET_HOB_TYPE (Hob)) == EFI_HOB_TYPE_GUID_EXTENSION) {

+      // Check for correct GUID type

+      if (CompareGuid(&(Hob.Guid->Name), &gArmMpCoreInfoGuid)) {

+        ARM_PROCESSOR_TABLE     *ArmProcessorTable;

+        EFI_STATUS              Status;

+

+        // Allocate Runtime memory for ARM processor table

+        ArmProcessorTable = (ARM_PROCESSOR_TABLE*)AllocateRuntimePool(sizeof(ARM_PROCESSOR_TABLE));

+

+        // Check if the memory allocation is succesful or not

+        ASSERT(NULL != ArmProcessorTable);

+

+        // Set ARM processor table to default values

+        CopyMem(ArmProcessorTable,&mArmProcessorTableTemplate,sizeof(ARM_PROCESSOR_TABLE));

+

+        // Fill in Length fields of ARM processor table

+        ArmProcessorTable->Header.Length = sizeof(ARM_PROCESSOR_TABLE);

+        ArmProcessorTable->Header.DataLen = GET_GUID_HOB_DATA_SIZE(Hob);

+

+        // Fill in Identifier(ARM processor table GUID)

+        ArmProcessorTable->Header.Identifier = gArmMpCoreInfoGuid;

+

+        // Set Number of ARM core entries in the Table

+        ArmProcessorTable->NumberOfEntries = GET_GUID_HOB_DATA_SIZE(Hob)/sizeof(ARM_CORE_INFO);

+

+        // Allocate runtime memory for ARM processor Table entries

+        ArmProcessorTable->ArmCpus = (ARM_CORE_INFO*)AllocateRuntimePool (

+           ArmProcessorTable->NumberOfEntries * sizeof(ARM_CORE_INFO));

+

+        // Check if the memory allocation is succesful or not

+        ASSERT(NULL != ArmProcessorTable->ArmCpus);

+

+        // Copy ARM Processor Table data from HOB list to newly allocated memory

+        CopyMem(ArmProcessorTable->ArmCpus,GET_GUID_HOB_DATA(Hob), ArmProcessorTable->Header.DataLen);

+

+        // Install the ARM Processor table into EFI system configuration table

+        Status = gBS->InstallConfigurationTable (&gArmMpCoreInfoGuid, ArmProcessorTable);

+

+        ASSERT_EFI_ERROR (Status);

+      }

+    }

+  }

+}