MdeModulePkg/Include/Protocol/GenericMemoryTest.h

   1 /** @file
   2   This protocol defines the generic memory test interfaces in Dxe phase.
   3
   4 Copyright (c) 2006 - 2008, Intel Corporation. <BR>
   5 All rights reserved. This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #ifndef __GENERIC_MEMORY_TEST_H__
  16 #define __GENERIC_MEMORY_TEST_H__
  17
  18 #define EFI_GENERIC_MEMORY_TEST_PROTOCOL_GUID  \
  19   { 0x309de7f1, 0x7f5e, 0x4ace, {0xb4, 0x9c, 0x53, 0x1b, 0xe5, 0xaa, 0x95, 0xef} }
  20
  21 typedef struct _EFI_GENERIC_MEMORY_TEST_PROTOCOL  EFI_GENERIC_MEMORY_TEST_PROTOCOL;
  22
  23 ///
  24 /// Memory test coverage level
  25 /// Ignore chooses not to test memory, Quick and Sparse test some memory, and Extensive performs a detailed memory test.
  26 ///
  27 typedef enum {
  28   IGNORE,
  29   QUICK,
  30   SPARSE,
  31   EXTENSIVE,
  32   MAXLEVEL
  33 } EXTENDMEM_COVERAGE_LEVEL;
  34
  35
  36 /**
  37   Initialize the generic memory test.
  38
  39   @param  This                Protocol instance pointer.
  40   @param  Level               The coverage level of the memory test.
  41   @param  RequireSoftECCInit  Indicate if the memory need software ECC init.
  42
  43   @retval EFI_SUCCESS         The generic memory test is initialized correctly.
  44   @retval EFI_NO_MEDIA        The system had no memory to be tested.
  45
  46 **/
  47 typedef
  48 EFI_STATUS
  49 (EFIAPI *EFI_MEMORY_TEST_INIT)(
  50   IN EFI_GENERIC_MEMORY_TEST_PROTOCOL          *This,
  51   IN  EXTENDMEM_COVERAGE_LEVEL                 Level,
  52   OUT BOOLEAN                                  *RequireSoftECCInit
  53   );
  54
  55
  56 /**
  57   Perform the memory test.
  58
  59   @param  This                Protocol instance pointer.
  60   @param  TestedMemorySize    Return the tested extended memory size.
  61   @param  TotalMemorySize     Return the whole system physical memory size.
  62                                                                                                                 The total memory size does not include memory in a slot with a disabled DIMM.
  63   @param  ErrorOut            TRUE if the memory error occured.
  64   @param  IfTestAbort         Indicates that the user pressed "ESC" to skip the memory test.
  65
  66   @retval EFI_SUCCESS         One block of memory passed the test.
  67   @retval EFI_NOT_FOUND       All memory blocks have already been tested.
  68   @retval EFI_DEVICE_ERROR    Memory device error occured, and no agent can handle it.
  69
  70 **/
  71 typedef
  72 EFI_STATUS
  73 (EFIAPI *EFI_PERFORM_MEMORY_TEST)(
  74   IN EFI_GENERIC_MEMORY_TEST_PROTOCOL          *This,
  75   OUT UINT64                                   *TestedMemorySize,
  76   OUT UINT64                                   *TotalMemorySize,
  77   OUT BOOLEAN                                  *ErrorOut,
  78   IN BOOLEAN                                   IfTestAbort
  79   );
  80
  81
  82 /**
  83   Finish the memory test.
  84
  85   @param  This                Protocol instance pointer.
  86
  87   @retval EFI_SUCCESS         Success. All resources used in the memory test are freed.
  88
  89 **/
  90 typedef
  91 EFI_STATUS
  92 (EFIAPI *EFI_MEMORY_TEST_FINISHED)(
  93   IN EFI_GENERIC_MEMORY_TEST_PROTOCOL *This
  94   );
  95
  96 /**
  97   Provides the capability to test the compatible range used by a special
  98   driver.
  99
 100   @param  This                Protocol instance pointer.
 101   @param  StartAddress        The start address of the compatible memory range that
 102                               must be below 16M.
 103   @param  Length              The compatible memory range's length.
 104
 105   @retval EFI_SUCCESS           The compatible memory range pass the memory test.
 106   @retval EFI_INVALID_PARAMETER The compatible memory range are not below Low 16M.
 107
 108 **/
 109 typedef
 110 EFI_STATUS
 111 (EFIAPI *EFI_MEMORY_TEST_COMPATIBLE_RANGE)(
 112   IN EFI_GENERIC_MEMORY_TEST_PROTOCOL          *This,
 113   IN  EFI_PHYSICAL_ADDRESS                     StartAddress,
 114   IN  UINT64                                   Length
 115   );
 116
 117 struct _EFI_GENERIC_MEMORY_TEST_PROTOCOL {
 118   EFI_MEMORY_TEST_INIT              MemoryTestInit;
 119   EFI_PERFORM_MEMORY_TEST           PerformMemoryTest;
 120   EFI_MEMORY_TEST_FINISHED          Finished;
 121   EFI_MEMORY_TEST_COMPATIBLE_RANGE  CompatibleRangeTest;
 122 };
 123
 124 extern EFI_GUID gEfiGenericMemTestProtocolGuid;
 125
 126 #endif
 127