Merge Temporary Ram support patch.

[mirror_edk2.git] / MdeModulePkg / Core / Pei / Memory / MemoryServices.c

/*++\r
\r
Copyright (c) 2006, Intel Corporation                                                         \r
All rights reserved. This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
Module Name:\r
\r
  MemoryServices.c\r
\r
Abstract:\r
\r
  EFI PEI Core memory services\r
\r
--*/\r
\r
#include <PeiMain.h>\r
\r
static EFI_PEI_PPI_DESCRIPTOR mMemoryDiscoveredPpi = {\r
  (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
  &gEfiPeiMemoryDiscoveredPpiGuid,\r
  NULL\r
};\r
\r
VOID\r
InitializeMemoryServices (\r
  IN PEI_CORE_INSTANCE           *PrivateData,\r
  IN CONST EFI_SEC_PEI_HAND_OFF  *SecCoreData,\r
  IN PEI_CORE_INSTANCE           *OldCoreData\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Initialize the memory services.\r
\r
Arguments:\r
\r
  PeiServices          - The PEI core services table.\r
  SecCoreData          - Points to a data structure containing information about the PEI core's operating\r
                         environment, such as the size and location of temporary RAM, the stack location and\r
                         the BFV location.\r
\r
  OldCoreData          - Pointer to the PEI Core data.\r
                         NULL if being run in non-permament memory mode.\r
\r
Returns:\r
\r
  None\r
\r
--*/\r
{\r
  \r
  PrivateData->SwitchStackSignal      = FALSE;\r
\r
  if (OldCoreData == NULL) {\r
\r
    PrivateData->PeiMemoryInstalled = FALSE;\r
\r
    PrivateData->BottomOfCarHeap        = SecCoreData->PeiTemporaryRamBase; \r
    PrivateData->TopOfCarHeap           = (VOID *)((UINTN)(PrivateData->BottomOfCarHeap) + SecCoreData->PeiTemporaryRamSize);\r
    PrivateData->SizeOfTemporaryMemory  = SecCoreData->TemporaryRamSize;\r
    PrivateData->StackSize              = (UINT64) SecCoreData->StackSize;\r
    \r
    DEBUG_CODE_BEGIN ();\r
      PrivateData->SizeOfCacheAsRam = SecCoreData->PeiTemporaryRamSize + SecCoreData->StackSize;\r
      PrivateData->MaxTopOfCarHeap  = (VOID *) ((UINTN) PrivateData->BottomOfCarHeap + (UINTN) PrivateData->SizeOfCacheAsRam);\r
      PrivateData->StackBase        = (EFI_PHYSICAL_ADDRESS) (UINTN) SecCoreData->StackBase;\r
      PrivateData->StackSize        = (UINT64) SecCoreData->StackSize;\r
    DEBUG_CODE_END ();\r
\r
    PrivateData->HobList.Raw = PrivateData->BottomOfCarHeap;\r
    \r
    PeiCoreBuildHobHandoffInfoTable (\r
      BOOT_WITH_FULL_CONFIGURATION,\r
      (EFI_PHYSICAL_ADDRESS) (UINTN) PrivateData->BottomOfCarHeap,\r
      (UINTN) SecCoreData->PeiTemporaryRamSize\r
      );\r
\r
    //\r
    // Set PS to point to ServiceTableShadow in Cache\r
    //\r
    PrivateData->PS = &(PrivateData->ServiceTableShadow);\r
  }\r
  \r
  return;\r
}\r
\r
EFI_STATUS\r
EFIAPI\r
PeiInstallPeiMemory (\r
  IN CONST EFI_PEI_SERVICES  **PeiServices,\r
  IN EFI_PHYSICAL_ADDRESS    MemoryBegin,\r
  IN UINT64                  MemoryLength\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Install the permanent memory is now available.\r
  Creates HOB (PHIT and Stack).\r
\r
Arguments:\r
\r
  PeiServices   - The PEI core services table.\r
  MemoryBegin   - Start of memory address.\r
  MemoryLength  - Length of memory.\r
\r
Returns:\r
\r
  Status  - EFI_SUCCESS\r
            \r
--*/\r
{\r
  PEI_CORE_INSTANCE                     *PrivateData;\r
\r
  DEBUG ((EFI_D_INFO, "PeiInstallPeiMemory MemoryBegin 0x%LX, MemoryLength 0x%LX\n", MemoryBegin, MemoryLength));\r
  PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);\r
\r
  PrivateData->PhysicalMemoryBegin   = MemoryBegin;\r
  PrivateData->PhysicalMemoryLength  = MemoryLength;\r
  PrivateData->FreePhysicalMemoryTop = MemoryBegin + MemoryLength;\r
   \r
  PrivateData->SwitchStackSignal      = TRUE;\r
\r
  return EFI_SUCCESS;   \r
}\r
\r
EFI_STATUS\r
EFIAPI\r
PeiAllocatePages (\r
  IN CONST EFI_PEI_SERVICES           **PeiServices,\r
  IN EFI_MEMORY_TYPE            MemoryType,\r
  IN UINTN                      Pages,\r
  OUT EFI_PHYSICAL_ADDRESS      *Memory\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Memory allocation service on permanent memory, \r
  not usable prior to the memory installation.\r
\r
Arguments:\r
\r
  PeiServices - The PEI core services table.\r
  MemoryType  - Type of memory to allocate.\r
  Pages       - Number of pages to allocate.\r
  Memory      - Pointer of memory allocated.\r
\r
Returns:\r
\r
  Status - EFI_SUCCESS              The allocation was successful\r
           EFI_INVALID_PARAMETER    Only AllocateAnyAddress is supported.\r
           EFI_NOT_AVAILABLE_YET    Called with permanent memory not available\r
           EFI_OUT_OF_RESOURCES     There is not enough HOB heap to satisfy the requirement\r
                                    to allocate the number of pages.\r
\r
--*/\r
{\r
  PEI_CORE_INSTANCE                       *PrivateData;\r
  EFI_PEI_HOB_POINTERS                    Hob;\r
  EFI_PHYSICAL_ADDRESS                    Offset;\r
  EFI_PHYSICAL_ADDRESS                    *FreeMemoryTop;\r
  EFI_PHYSICAL_ADDRESS                    *FreeMemoryBottom;\r
\r
  PrivateData = PEI_CORE_INSTANCE_FROM_PS_THIS (PeiServices);\r
  Hob.Raw     = PrivateData->HobList.Raw;\r
  \r
  //\r
  // Check if Hob already available\r
  //\r
  if (!PrivateData->PeiMemoryInstalled) {\r
    //\r
    // When PeiInstallMemory is called but CAR has *not* been moved to temporary memory,\r
    // the AllocatePage will dependent the field of PEI_CORE_INSTANCE structure.\r
    //\r
    if (!PrivateData->SwitchStackSignal) {\r
      return EFI_NOT_AVAILABLE_YET;\r
    } else {\r
      FreeMemoryTop     = &(PrivateData->FreePhysicalMemoryTop);\r
      FreeMemoryBottom  = &(PrivateData->PhysicalMemoryBegin);\r
    }\r
  } else {\r
    FreeMemoryTop     = &(Hob.HandoffInformationTable->EfiFreeMemoryTop);\r
    FreeMemoryBottom  = &(Hob.HandoffInformationTable->EfiFreeMemoryBottom);\r
  }\r
\r
  \r
\r
  //\r
  // Check to see if on 4k boundary\r
  //\r
  Offset = *(FreeMemoryTop) & 0xFFF;\r
  \r
  //\r
  // If not aligned, make the allocation aligned.\r
  //\r
  if (Offset != 0) {\r
    *(FreeMemoryTop) -= Offset;\r
  }\r
  \r
  //\r
  // Verify that there is sufficient memory to satisfy the allocation\r
  //\r
  if (*(FreeMemoryTop) - ((Pages * EFI_PAGE_SIZE) + sizeof (EFI_HOB_MEMORY_ALLOCATION)) < \r
      *(FreeMemoryBottom)) {\r
    DEBUG ((EFI_D_ERROR, "AllocatePages failed: No 0x%x Pages is available.\n", Pages));\r
    DEBUG ((EFI_D_ERROR, "There is only left 0x%x pages memory resource to be allocated.\n", \\r
    EFI_SIZE_TO_PAGES ((UINTN) (*(FreeMemoryTop) - *(FreeMemoryBottom)))));\r
    return  EFI_OUT_OF_RESOURCES;\r
  } else {\r
    //\r
    // Update the PHIT to reflect the memory usage\r
    //\r
    *(FreeMemoryTop) -= Pages * EFI_PAGE_SIZE;\r
\r
    //\r
    // Update the value for the caller\r
    //\r
    *Memory = *(FreeMemoryTop);\r
\r
    //\r
    // Create a memory allocation HOB.\r
    //\r
    BuildMemoryAllocationHob (\r
      *(FreeMemoryTop),\r
      Pages * EFI_PAGE_SIZE,\r
      MemoryType\r
      );\r
\r
    return EFI_SUCCESS;\r
  }\r
}\r
\r
\r
EFI_STATUS\r
EFIAPI\r
PeiAllocatePool (\r
  IN CONST EFI_PEI_SERVICES           **PeiServices,\r
  IN UINTN                      Size,\r
  OUT VOID                      **Buffer\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Memory allocation service on the CAR.  \r
\r
Arguments:\r
\r
  PeiServices - The PEI core services table.\r
\r
  Size        - Amount of memory required\r
\r
  Buffer      - Address of pointer to the buffer\r
\r
Returns:\r
\r
  Status - EFI_SUCCESS              The allocation was successful\r
           EFI_OUT_OF_RESOURCES     There is not enough heap to satisfy the requirement\r
                                    to allocate the requested size.\r
                                    \r
--*/\r
{\r
  EFI_STATUS               Status;\r
  EFI_HOB_MEMORY_POOL      *Hob;\r
\r
 //\r
 // If some "post-memory" PEIM wishes to allocate larger pool,\r
 // it should use AllocatePages service instead.\r
 //\r
 ASSERT (Size < 0x10000 - sizeof (EFI_HOB_MEMORY_POOL));\r
 Status = PeiServicesCreateHob (\r
             EFI_HOB_TYPE_MEMORY_POOL,\r
             (UINT16)(sizeof (EFI_HOB_MEMORY_POOL) + Size),\r
             (VOID **)&Hob\r
             );\r
  *Buffer = Hob+1;  \r
\r
\r
  return Status;\r
}\r