[mirror_edk2.git] / ShellPkg / Library / UefiShellAcpiViewCommandLib / Parsers / Gtdt / GtdtParser.c

/** @file\r
  GTDT table parser\r
\r
  Copyright (c) 2016 - 2019, ARM Limited. All rights reserved.\r
  SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
  @par Reference(s):\r
    - ACPI 6.2 Specification - Errata A, September 2017\r
  **/\r
\r
#include <IndustryStandard/Acpi.h>\r
#include <Library/UefiLib.h>\r
#include "AcpiParser.h"\r
#include "AcpiTableParser.h"\r
\r
// Local variables\r
STATIC CONST UINT32* GtdtPlatformTimerCount;\r
STATIC CONST UINT32* GtdtPlatformTimerOffset;\r
STATIC CONST UINT8*  PlatformTimerType;\r
STATIC CONST UINT16* PlatformTimerLength;\r
STATIC CONST UINT32* GtBlockTimerCount;\r
STATIC CONST UINT32* GtBlockTimerOffset;\r
STATIC CONST UINT16* GtBlockLength;\r
STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;\r
\r
/**\r
  This function validates the GT Block timer count.\r
\r
  @param [in] Ptr     Pointer to the start of the field data.\r
  @param [in] Context Pointer to context specific information e.g. this\r
                      could be a pointer to the ACPI table header.\r
**/\r
STATIC\r
VOID\r
EFIAPI\r
ValidateGtBlockTimerCount (\r
  IN UINT8* Ptr,\r
  IN VOID*  Context\r
  );\r
\r
/**\r
  This function validates the GT Frame Number.\r
\r
  @param [in] Ptr     Pointer to the start of the field data.\r
  @param [in] Context Pointer to context specific information e.g. this\r
                      could be a pointer to the ACPI table header.\r
**/\r
STATIC\r
VOID\r
EFIAPI\r
ValidateGtFrameNumber (\r
  IN UINT8* Ptr,\r
  IN VOID*  Context\r
  );\r
\r
/**\r
  An ACPI_PARSER array describing the ACPI GTDT Table.\r
**/\r
STATIC CONST ACPI_PARSER GtdtParser[] = {\r
  PARSE_ACPI_HEADER (&AcpiHdrInfo),\r
  {L"CntControlBase Physical Address", 8, 36, L"0x%lx", NULL, NULL,\r
   NULL, NULL},\r
  {L"Reserved", 4, 44, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Secure EL1 timer GSIV", 4, 48, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Secure EL1 timer FLAGS", 4, 52, L"0x%x", NULL, NULL, NULL, NULL},\r
\r
  {L"Non-Secure EL1 timer GSIV", 4, 56, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Non-Secure EL1 timer FLAGS", 4, 60, L"0x%x", NULL, NULL, NULL, NULL},\r
\r
  {L"Virtual timer GSIV", 4, 64, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Virtual timer FLAGS", 4, 68, L"0x%x", NULL, NULL, NULL, NULL},\r
\r
  {L"Non-Secure EL2 timer GSIV", 4, 72, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Non-Secure EL2 timer FLAGS", 4, 76, L"0x%x", NULL, NULL, NULL, NULL},\r
\r
  {L"CntReadBase Physical address", 8, 80, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"Platform Timer Count", 4, 88, L"%d", NULL,\r
   (VOID**)&GtdtPlatformTimerCount, NULL, NULL},\r
  {L"Platform Timer Offset", 4, 92, L"0x%x", NULL,\r
   (VOID**)&GtdtPlatformTimerOffset, NULL, NULL}\r
};\r
\r
/**\r
  An ACPI_PARSER array describing the Platform timer header.\r
**/\r
STATIC CONST ACPI_PARSER GtPlatformTimerHeaderParser[] = {\r
  {L"Type", 1, 0, NULL, NULL, (VOID**)&PlatformTimerType, NULL, NULL},\r
  {L"Length", 2, 1, NULL, NULL, (VOID**)&PlatformTimerLength, NULL, NULL},\r
  {L"Reserved", 1, 3, NULL, NULL, NULL, NULL, NULL}\r
};\r
\r
/**\r
  An ACPI_PARSER array describing the Platform GT Block.\r
**/\r
STATIC CONST ACPI_PARSER GtBlockParser[] = {\r
  {L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
  {L"Length", 2, 1, L"%d", NULL, (VOID**)&GtBlockLength, NULL, NULL},\r
  {L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
  {L"Physical address (CntCtlBase)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"Timer Count", 4, 12, L"%d", NULL, (VOID**)&GtBlockTimerCount,\r
   ValidateGtBlockTimerCount, NULL},\r
  {L"Timer Offset", 4, 16, L"%d", NULL, (VOID**)&GtBlockTimerOffset, NULL,\r
    NULL}\r
};\r
\r
/**\r
  An ACPI_PARSER array describing the GT Block timer.\r
**/\r
STATIC CONST ACPI_PARSER GtBlockTimerParser[] = {\r
  {L"Frame Number", 1, 0, L"%d", NULL, NULL, ValidateGtFrameNumber, NULL},\r
  {L"Reserved", 3, 1, L"%x %x %x", Dump3Chars, NULL, NULL, NULL},\r
  {L"Physical address (CntBaseX)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"Physical address (CntEL0BaseX)", 8, 12, L"0x%lx", NULL, NULL, NULL,\r
    NULL},\r
  {L"Physical Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Physical Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Virtual Timer GSIV", 4, 28, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Virtual Timer Flags", 4, 32, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Common Flags", 4, 36, L"0x%x", NULL, NULL, NULL, NULL}\r
};\r
\r
/**\r
  An ACPI_PARSER array describing the Platform Watchdog.\r
**/\r
STATIC CONST ACPI_PARSER SBSAGenericWatchdogParser[] = {\r
  {L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
  {L"Length", 2, 1, L"%d", NULL, NULL, NULL, NULL},\r
  {L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
  {L"RefreshFrame Physical address", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"ControlFrame Physical address", 8, 12, L"0x%lx", NULL, NULL, NULL, NULL},\r
  {L"Watchdog Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
  {L"Watchdog Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL}\r
};\r
\r
/**\r
  This function validates the GT Block timer count.\r
\r
  @param [in] Ptr     Pointer to the start of the field data.\r
  @param [in] Context Pointer to context specific information e.g. this\r
                      could be a pointer to the ACPI table header.\r
**/\r
STATIC\r
VOID\r
EFIAPI\r
ValidateGtBlockTimerCount (\r
  IN UINT8* Ptr,\r
  IN VOID*  Context\r
  )\r
{\r
  UINT32 BlockTimerCount;\r
\r
  BlockTimerCount = *(UINT32*)Ptr;\r
\r
  if (BlockTimerCount > 8) {\r
    IncrementErrorCount ();\r
    Print (\r
      L"\nERROR: Timer Count = %d. Max Timer Count is 8.",\r
      BlockTimerCount\r
      );\r
  }\r
}\r
\r
/**\r
  This function validates the GT Frame Number.\r
\r
  @param [in] Ptr     Pointer to the start of the field data.\r
  @param [in] Context Pointer to context specific information e.g. this\r
                      could be a pointer to the ACPI table header.\r
**/\r
STATIC\r
VOID\r
EFIAPI\r
ValidateGtFrameNumber (\r
  IN UINT8* Ptr,\r
  IN VOID*  Context\r
  )\r
{\r
  UINT8 FrameNumber;\r
\r
  FrameNumber = *(UINT8*)Ptr;\r
\r
  if (FrameNumber > 7) {\r
    IncrementErrorCount ();\r
    Print (\r
      L"\nERROR: GT Frame Number = %d. GT Frame Number must be in range 0-7.",\r
      FrameNumber\r
      );\r
  }\r
}\r
\r
/**\r
  This function parses the Platform GT Block.\r
\r
  @param [in] Ptr     Pointer to the start of the GT Block data.\r
  @param [in] Length  Length of the GT Block structure.\r
**/\r
STATIC\r
VOID\r
DumpGTBlock (\r
  IN UINT8* Ptr,\r
  IN UINT32 Length\r
  )\r
{\r
  UINT32 Index;\r
  UINT32 Offset;\r
  UINT32 GTBlockTimerLength;\r
\r
  Offset = ParseAcpi (\r
             TRUE,\r
             2,\r
             "GT Block",\r
             Ptr,\r
             Length,\r
             PARSER_PARAMS (GtBlockParser)\r
             );\r
  GTBlockTimerLength = (*GtBlockLength - Offset) / (*GtBlockTimerCount);\r
  Length -= Offset;\r
\r
  if (*GtBlockTimerCount != 0) {\r
    Ptr += (*GtBlockTimerOffset);\r
    Index = 0;\r
    while ((Index < (*GtBlockTimerCount)) && (Length >= GTBlockTimerLength)) {\r
      Offset = ParseAcpi (\r
                 TRUE,\r
                 2,\r
                 "GT Block Timer",\r
                 Ptr,\r
                 GTBlockTimerLength,\r
                 PARSER_PARAMS (GtBlockTimerParser)\r
                 );\r
      // Increment by GT Block Timer structure size\r
      Ptr += Offset;\r
      Length -= Offset;\r
      Index++;\r
    }\r
\r
    if (Length != 0) {\r
      IncrementErrorCount ();\r
      Print (\r
        L"ERROR:GT Block Timer length mismatch. Unparsed %d bytes.\n",\r
        Length\r
        );\r
    }\r
  }\r
}\r
\r
/**\r
  This function parses the Platform Watchdog timer.\r
\r
  @param [in] Ptr     Pointer to the start of the watchdog timer data.\r
  @param [in] Length  Length of the watchdog timer structure.\r
**/\r
STATIC\r
VOID\r
DumpWatchdogTimer (\r
  IN UINT8* Ptr,\r
  IN UINT16 Length\r
  )\r
{\r
  ParseAcpi (\r
    TRUE,\r
    2,\r
    "SBSA Generic Watchdog",\r
    Ptr,\r
    Length,\r
    PARSER_PARAMS (SBSAGenericWatchdogParser)\r
    );\r
}\r
\r
/**\r
  This function parses the ACPI GTDT table.\r
  When trace is enabled this function parses the GTDT table and\r
  traces the ACPI table fields.\r
\r
  This function also parses the following platform timer structures:\r
    - GT Block timer\r
    - Watchdog timer\r
\r
  This function also performs validation of the ACPI table fields.\r
\r
  @param [in] Trace              If TRUE, trace the ACPI fields.\r
  @param [in] Ptr                Pointer to the start of the buffer.\r
  @param [in] AcpiTableLength    Length of the ACPI table.\r
  @param [in] AcpiTableRevision  Revision of the ACPI table.\r
**/\r
VOID\r
EFIAPI\r
ParseAcpiGtdt (\r
  IN BOOLEAN Trace,\r
  IN UINT8*  Ptr,\r
  IN UINT32  AcpiTableLength,\r
  IN UINT8   AcpiTableRevision\r
  )\r
{\r
  UINT32 Index;\r
  UINT8* TimerPtr;\r
\r
  if (!Trace) {\r
    return;\r
  }\r
\r
  ParseAcpi (\r
    TRUE,\r
    0,\r
    "GTDT",\r
    Ptr,\r
    AcpiTableLength,\r
    PARSER_PARAMS (GtdtParser)\r
    );\r
\r
  if (*GtdtPlatformTimerCount != 0) {\r
    TimerPtr = Ptr + (*GtdtPlatformTimerOffset);\r
    Index = 0;\r
    do {\r
      // Parse the Platform Timer Header\r
      ParseAcpi (\r
        FALSE,\r
        0,\r
        NULL,\r
        TimerPtr,\r
        4,  // GT Platform Timer structure header length.\r
        PARSER_PARAMS (GtPlatformTimerHeaderParser)\r
        );\r
      switch (*PlatformTimerType) {\r
        case EFI_ACPI_6_2_GTDT_GT_BLOCK:\r
          DumpGTBlock (TimerPtr, *PlatformTimerLength);\r
          break;\r
        case EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG:\r
          DumpWatchdogTimer (TimerPtr, *PlatformTimerLength);\r
          break;\r
        default:\r
          IncrementErrorCount ();\r
          Print (\r
            L"ERROR: INVALID Platform Timer Type = %d\n",\r
            *PlatformTimerType\r
            );\r
          break;\r
      } // switch\r
      TimerPtr += (*PlatformTimerLength);\r
      Index++;\r
    } while (Index < *GtdtPlatformTimerCount);\r
  }\r
}\r
Commit	Line	Data
a6eaba4d	1	/** @file\r
ee4dc24f RN	2	GTDT table parser\r
ee4dc24f RN	3	\r
8da8daaf	4	Copyright (c) 2016 - 2019, ARM Limited. All rights reserved.\r
56ba3746	5	SPDX-License-Identifier: BSD-2-Clause-Patent\r
ee4dc24f RN	6	\r
	7	@par Reference(s):\r
	8	- ACPI 6.2 Specification - Errata A, September 2017\r
	9	**/\r
	10	\r
	11	#include <IndustryStandard/Acpi.h>\r
	12	#include <Library/UefiLib.h>\r
	13	#include "AcpiParser.h"\r
	14	#include "AcpiTableParser.h"\r
	15	\r
	16	// Local variables\r
	17	STATIC CONST UINT32* GtdtPlatformTimerCount;\r
	18	STATIC CONST UINT32* GtdtPlatformTimerOffset;\r
	19	STATIC CONST UINT8* PlatformTimerType;\r
	20	STATIC CONST UINT16* PlatformTimerLength;\r
	21	STATIC CONST UINT32* GtBlockTimerCount;\r
	22	STATIC CONST UINT32* GtBlockTimerOffset;\r
	23	STATIC CONST UINT16* GtBlockLength;\r
	24	STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;\r
	25	\r
a6eaba4d DB	26	/**\r
a6eaba4d DB	27	This function validates the GT Block timer count.\r
ee4dc24f RN	28	\r
	29	@param [in] Ptr Pointer to the start of the field data.\r
	30	@param [in] Context Pointer to context specific information e.g. this\r
	31	could be a pointer to the ACPI table header.\r
a6eaba4d	32	**/\r
ee4dc24f RN	33	STATIC\r
	34	VOID\r
	35	EFIAPI\r
	36	ValidateGtBlockTimerCount (\r
	37	IN UINT8* Ptr,\r
	38	IN VOID* Context\r
	39	);\r
	40	\r
8da8daaf KK	41	/**\r
	42	This function validates the GT Frame Number.\r
	43	\r
	44	@param [in] Ptr Pointer to the start of the field data.\r
	45	@param [in] Context Pointer to context specific information e.g. this\r
	46	could be a pointer to the ACPI table header.\r
	47	**/\r
	48	STATIC\r
	49	VOID\r
	50	EFIAPI\r
	51	ValidateGtFrameNumber (\r
	52	IN UINT8* Ptr,\r
	53	IN VOID* Context\r
	54	);\r
	55	\r
a6eaba4d DB	56	/**\r
	57	An ACPI_PARSER array describing the ACPI GTDT Table.\r
	58	**/\r
ee4dc24f RN	59	STATIC CONST ACPI_PARSER GtdtParser[] = {\r
	60	PARSE_ACPI_HEADER (&AcpiHdrInfo),\r
	61	{L"CntControlBase Physical Address", 8, 36, L"0x%lx", NULL, NULL,\r
	62	NULL, NULL},\r
	63	{L"Reserved", 4, 44, L"0x%x", NULL, NULL, NULL, NULL},\r
	64	{L"Secure EL1 timer GSIV", 4, 48, L"0x%x", NULL, NULL, NULL, NULL},\r
	65	{L"Secure EL1 timer FLAGS", 4, 52, L"0x%x", NULL, NULL, NULL, NULL},\r
	66	\r
	67	{L"Non-Secure EL1 timer GSIV", 4, 56, L"0x%x", NULL, NULL, NULL, NULL},\r
	68	{L"Non-Secure EL1 timer FLAGS", 4, 60, L"0x%x", NULL, NULL, NULL, NULL},\r
	69	\r
	70	{L"Virtual timer GSIV", 4, 64, L"0x%x", NULL, NULL, NULL, NULL},\r
	71	{L"Virtual timer FLAGS", 4, 68, L"0x%x", NULL, NULL, NULL, NULL},\r
	72	\r
	73	{L"Non-Secure EL2 timer GSIV", 4, 72, L"0x%x", NULL, NULL, NULL, NULL},\r
	74	{L"Non-Secure EL2 timer FLAGS", 4, 76, L"0x%x", NULL, NULL, NULL, NULL},\r
	75	\r
	76	{L"CntReadBase Physical address", 8, 80, L"0x%lx", NULL, NULL, NULL, NULL},\r
	77	{L"Platform Timer Count", 4, 88, L"%d", NULL,\r
	78	(VOID**)&GtdtPlatformTimerCount, NULL, NULL},\r
	79	{L"Platform Timer Offset", 4, 92, L"0x%x", NULL,\r
	80	(VOID**)&GtdtPlatformTimerOffset, NULL, NULL}\r
	81	};\r
	82	\r
a6eaba4d DB	83	/**\r
	84	An ACPI_PARSER array describing the Platform timer header.\r
	85	**/\r
ee4dc24f RN	86	STATIC CONST ACPI_PARSER GtPlatformTimerHeaderParser[] = {\r
	87	{L"Type", 1, 0, NULL, NULL, (VOID**)&PlatformTimerType, NULL, NULL},\r
	88	{L"Length", 2, 1, NULL, NULL, (VOID**)&PlatformTimerLength, NULL, NULL},\r
	89	{L"Reserved", 1, 3, NULL, NULL, NULL, NULL, NULL}\r
	90	};\r
	91	\r
a6eaba4d DB	92	/**\r
	93	An ACPI_PARSER array describing the Platform GT Block.\r
	94	**/\r
ee4dc24f RN	95	STATIC CONST ACPI_PARSER GtBlockParser[] = {\r
	96	{L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
	97	{L"Length", 2, 1, L"%d", NULL, (VOID**)&GtBlockLength, NULL, NULL},\r
	98	{L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
	99	{L"Physical address (CntCtlBase)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	100	{L"Timer Count", 4, 12, L"%d", NULL, (VOID**)&GtBlockTimerCount,\r
	101	ValidateGtBlockTimerCount, NULL},\r
	102	{L"Timer Offset", 4, 16, L"%d", NULL, (VOID**)&GtBlockTimerOffset, NULL,\r
	103	NULL}\r
	104	};\r
	105	\r
a6eaba4d DB	106	/**\r
	107	An ACPI_PARSER array describing the GT Block timer.\r
	108	**/\r
ee4dc24f	109	STATIC CONST ACPI_PARSER GtBlockTimerParser[] = {\r
8da8daaf	110	{L"Frame Number", 1, 0, L"%d", NULL, NULL, ValidateGtFrameNumber, NULL},\r
ee4dc24f RN	111	{L"Reserved", 3, 1, L"%x %x %x", Dump3Chars, NULL, NULL, NULL},\r
	112	{L"Physical address (CntBaseX)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	113	{L"Physical address (CntEL0BaseX)", 8, 12, L"0x%lx", NULL, NULL, NULL,\r
	114	NULL},\r
	115	{L"Physical Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
	116	{L"Physical Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL},\r
	117	{L"Virtual Timer GSIV", 4, 28, L"0x%x", NULL, NULL, NULL, NULL},\r
	118	{L"Virtual Timer Flags", 4, 32, L"0x%x", NULL, NULL, NULL, NULL},\r
	119	{L"Common Flags", 4, 36, L"0x%x", NULL, NULL, NULL, NULL}\r
	120	};\r
	121	\r
a6eaba4d DB	122	/**\r
	123	An ACPI_PARSER array describing the Platform Watchdog.\r
	124	**/\r
ee4dc24f RN	125	STATIC CONST ACPI_PARSER SBSAGenericWatchdogParser[] = {\r
	126	{L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
	127	{L"Length", 2, 1, L"%d", NULL, NULL, NULL, NULL},\r
	128	{L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
	129	{L"RefreshFrame Physical address", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	130	{L"ControlFrame Physical address", 8, 12, L"0x%lx", NULL, NULL, NULL, NULL},\r
	131	{L"Watchdog Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
	132	{L"Watchdog Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL}\r
	133	};\r
	134	\r
a6eaba4d DB	135	/**\r
a6eaba4d DB	136	This function validates the GT Block timer count.\r
ee4dc24f RN	137	\r
	138	@param [in] Ptr Pointer to the start of the field data.\r
	139	@param [in] Context Pointer to context specific information e.g. this\r
	140	could be a pointer to the ACPI table header.\r
a6eaba4d	141	**/\r
ee4dc24f RN	142	STATIC\r
	143	VOID\r
	144	EFIAPI\r
	145	ValidateGtBlockTimerCount (\r
	146	IN UINT8* Ptr,\r
	147	IN VOID* Context\r
	148	)\r
	149	{\r
f75c7478 DB	150	UINT32 BlockTimerCount;\r
	151	\r
	152	BlockTimerCount = (UINT32)Ptr;\r
	153	\r
ee4dc24f RN	154	if (BlockTimerCount > 8) {\r
	155	IncrementErrorCount ();\r
	156	Print (\r
	157	L"\nERROR: Timer Count = %d. Max Timer Count is 8.",\r
	158	BlockTimerCount\r
	159	);\r
	160	}\r
	161	}\r
	162	\r
8da8daaf KK	163	/**\r
	164	This function validates the GT Frame Number.\r
	165	\r
	166	@param [in] Ptr Pointer to the start of the field data.\r
	167	@param [in] Context Pointer to context specific information e.g. this\r
	168	could be a pointer to the ACPI table header.\r
	169	**/\r
	170	STATIC\r
	171	VOID\r
	172	EFIAPI\r
	173	ValidateGtFrameNumber (\r
	174	IN UINT8* Ptr,\r
	175	IN VOID* Context\r
	176	)\r
	177	{\r
	178	UINT8 FrameNumber;\r
	179	\r
	180	FrameNumber = (UINT8)Ptr;\r
	181	\r
	182	if (FrameNumber > 7) {\r
	183	IncrementErrorCount ();\r
	184	Print (\r
	185	L"\nERROR: GT Frame Number = %d. GT Frame Number must be in range 0-7.",\r
	186	FrameNumber\r
	187	);\r
	188	}\r
	189	}\r
	190	\r
a6eaba4d DB	191	/**\r
a6eaba4d DB	192	This function parses the Platform GT Block.\r
ee4dc24f RN	193	\r
	194	@param [in] Ptr Pointer to the start of the GT Block data.\r
	195	@param [in] Length Length of the GT Block structure.\r
a6eaba4d	196	**/\r
ee4dc24f RN	197	STATIC\r
	198	VOID\r
	199	DumpGTBlock (\r
	200	IN UINT8* Ptr,\r
68bef3f0	201	IN UINT32 Length\r
ee4dc24f RN	202	)\r
	203	{\r
	204	UINT32 Index;\r
	205	UINT32 Offset;\r
68bef3f0	206	UINT32 GTBlockTimerLength;\r
ee4dc24f RN	207	\r
	208	Offset = ParseAcpi (\r
	209	TRUE,\r
	210	2,\r
	211	"GT Block",\r
	212	Ptr,\r
	213	Length,\r
	214	PARSER_PARAMS (GtBlockParser)\r
	215	);\r
	216	GTBlockTimerLength = (GtBlockLength - Offset) / (GtBlockTimerCount);\r
	217	Length -= Offset;\r
	218	\r
	219	if (*GtBlockTimerCount != 0) {\r
	220	Ptr += (*GtBlockTimerOffset);\r
	221	Index = 0;\r
	222	while ((Index < (*GtBlockTimerCount)) && (Length >= GTBlockTimerLength)) {\r
	223	Offset = ParseAcpi (\r
	224	TRUE,\r
	225	2,\r
	226	"GT Block Timer",\r
	227	Ptr,\r
	228	GTBlockTimerLength,\r
	229	PARSER_PARAMS (GtBlockTimerParser)\r
	230	);\r
	231	// Increment by GT Block Timer structure size\r
	232	Ptr += Offset;\r
	233	Length -= Offset;\r
	234	Index++;\r
	235	}\r
	236	\r
	237	if (Length != 0) {\r
	238	IncrementErrorCount ();\r
	239	Print (\r
	240	L"ERROR:GT Block Timer length mismatch. Unparsed %d bytes.\n",\r
	241	Length\r
	242	);\r
	243	}\r
	244	}\r
	245	}\r
	246	\r
a6eaba4d DB	247	/**\r
a6eaba4d DB	248	This function parses the Platform Watchdog timer.\r
ee4dc24f RN	249	\r
	250	@param [in] Ptr Pointer to the start of the watchdog timer data.\r
	251	@param [in] Length Length of the watchdog timer structure.\r
a6eaba4d	252	**/\r
ee4dc24f RN	253	STATIC\r
	254	VOID\r
	255	DumpWatchdogTimer (\r
	256	IN UINT8* Ptr,\r
	257	IN UINT16 Length\r
	258	)\r
	259	{\r
	260	ParseAcpi (\r
	261	TRUE,\r
	262	2,\r
	263	"SBSA Generic Watchdog",\r
	264	Ptr,\r
	265	Length,\r
	266	PARSER_PARAMS (SBSAGenericWatchdogParser)\r
	267	);\r
	268	}\r
	269	\r
a6eaba4d DB	270	/**\r
a6eaba4d DB	271	This function parses the ACPI GTDT table.\r
ee4dc24f RN	272	When trace is enabled this function parses the GTDT table and\r
	273	traces the ACPI table fields.\r
	274	\r
	275	This function also parses the following platform timer structures:\r
	276	- GT Block timer\r
	277	- Watchdog timer\r
	278	\r
	279	This function also performs validation of the ACPI table fields.\r
	280	\r
	281	@param [in] Trace If TRUE, trace the ACPI fields.\r
	282	@param [in] Ptr Pointer to the start of the buffer.\r
	283	@param [in] AcpiTableLength Length of the ACPI table.\r
	284	@param [in] AcpiTableRevision Revision of the ACPI table.\r
a6eaba4d	285	**/\r
ee4dc24f RN	286	VOID\r
	287	EFIAPI\r
	288	ParseAcpiGtdt (\r
	289	IN BOOLEAN Trace,\r
	290	IN UINT8* Ptr,\r
	291	IN UINT32 AcpiTableLength,\r
	292	IN UINT8 AcpiTableRevision\r
	293	)\r
	294	{\r
	295	UINT32 Index;\r
	296	UINT8* TimerPtr;\r
	297	\r
	298	if (!Trace) {\r
	299	return;\r
	300	}\r
	301	\r
	302	ParseAcpi (\r
	303	TRUE,\r
	304	0,\r
	305	"GTDT",\r
	306	Ptr,\r
	307	AcpiTableLength,\r
	308	PARSER_PARAMS (GtdtParser)\r
	309	);\r
	310	\r
	311	if (*GtdtPlatformTimerCount != 0) {\r
	312	TimerPtr = Ptr + (*GtdtPlatformTimerOffset);\r
	313	Index = 0;\r
	314	do {\r
	315	// Parse the Platform Timer Header\r
	316	ParseAcpi (\r
	317	FALSE,\r
	318	0,\r
	319	NULL,\r
	320	TimerPtr,\r
	321	4, // GT Platform Timer structure header length.\r
	322	PARSER_PARAMS (GtPlatformTimerHeaderParser)\r
	323	);\r
	324	switch (*PlatformTimerType) {\r
	325	case EFI_ACPI_6_2_GTDT_GT_BLOCK:\r
	326	DumpGTBlock (TimerPtr, *PlatformTimerLength);\r
	327	break;\r
	328	case EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG:\r
	329	DumpWatchdogTimer (TimerPtr, *PlatformTimerLength);\r
	330	break;\r
	331	default:\r
	332	IncrementErrorCount ();\r
	333	Print (\r
	334	L"ERROR: INVALID Platform Timer Type = %d\n",\r
	335	*PlatformTimerType\r
	336	);\r
	337	break;\r
	338	} // switch\r
	339	TimerPtr += (*PlatformTimerLength);\r
	340	Index++;\r
	341	} while (Index < *GtdtPlatformTimerCount);\r
	342	}\r
	343	}\r