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

/** @file\r
  GTDT table parser\r
\r
  Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.\r
  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
  @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
  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, NULL, 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 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
	3	\r
	4	Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.\r
	5	This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
	13	@par Reference(s):\r
	14	- ACPI 6.2 Specification - Errata A, September 2017\r
	15	**/\r
	16	\r
	17	#include <IndustryStandard/Acpi.h>\r
	18	#include <Library/UefiLib.h>\r
	19	#include "AcpiParser.h"\r
	20	#include "AcpiTableParser.h"\r
	21	\r
	22	// Local variables\r
	23	STATIC CONST UINT32* GtdtPlatformTimerCount;\r
	24	STATIC CONST UINT32* GtdtPlatformTimerOffset;\r
	25	STATIC CONST UINT8* PlatformTimerType;\r
	26	STATIC CONST UINT16* PlatformTimerLength;\r
	27	STATIC CONST UINT32* GtBlockTimerCount;\r
	28	STATIC CONST UINT32* GtBlockTimerOffset;\r
	29	STATIC CONST UINT16* GtBlockLength;\r
	30	STATIC ACPI_DESCRIPTION_HEADER_INFO AcpiHdrInfo;\r
	31	\r
a6eaba4d DB	32	/**\r
a6eaba4d DB	33	This function validates the GT Block timer count.\r
ee4dc24f RN	34	\r
	35	@param [in] Ptr Pointer to the start of the field data.\r
	36	@param [in] Context Pointer to context specific information e.g. this\r
	37	could be a pointer to the ACPI table header.\r
a6eaba4d	38	**/\r
ee4dc24f RN	39	STATIC\r
	40	VOID\r
	41	EFIAPI\r
	42	ValidateGtBlockTimerCount (\r
	43	IN UINT8* Ptr,\r
	44	IN VOID* Context\r
	45	);\r
	46	\r
a6eaba4d DB	47	/**\r
	48	An ACPI_PARSER array describing the ACPI GTDT Table.\r
	49	**/\r
ee4dc24f RN	50	STATIC CONST ACPI_PARSER GtdtParser[] = {\r
	51	PARSE_ACPI_HEADER (&AcpiHdrInfo),\r
	52	{L"CntControlBase Physical Address", 8, 36, L"0x%lx", NULL, NULL,\r
	53	NULL, NULL},\r
	54	{L"Reserved", 4, 44, L"0x%x", NULL, NULL, NULL, NULL},\r
	55	{L"Secure EL1 timer GSIV", 4, 48, L"0x%x", NULL, NULL, NULL, NULL},\r
	56	{L"Secure EL1 timer FLAGS", 4, 52, L"0x%x", NULL, NULL, NULL, NULL},\r
	57	\r
	58	{L"Non-Secure EL1 timer GSIV", 4, 56, L"0x%x", NULL, NULL, NULL, NULL},\r
	59	{L"Non-Secure EL1 timer FLAGS", 4, 60, L"0x%x", NULL, NULL, NULL, NULL},\r
	60	\r
	61	{L"Virtual timer GSIV", 4, 64, L"0x%x", NULL, NULL, NULL, NULL},\r
	62	{L"Virtual timer FLAGS", 4, 68, L"0x%x", NULL, NULL, NULL, NULL},\r
	63	\r
	64	{L"Non-Secure EL2 timer GSIV", 4, 72, L"0x%x", NULL, NULL, NULL, NULL},\r
	65	{L"Non-Secure EL2 timer FLAGS", 4, 76, L"0x%x", NULL, NULL, NULL, NULL},\r
	66	\r
	67	{L"CntReadBase Physical address", 8, 80, L"0x%lx", NULL, NULL, NULL, NULL},\r
	68	{L"Platform Timer Count", 4, 88, L"%d", NULL,\r
	69	(VOID**)&GtdtPlatformTimerCount, NULL, NULL},\r
	70	{L"Platform Timer Offset", 4, 92, L"0x%x", NULL,\r
	71	(VOID**)&GtdtPlatformTimerOffset, NULL, NULL}\r
	72	};\r
	73	\r
a6eaba4d DB	74	/**\r
	75	An ACPI_PARSER array describing the Platform timer header.\r
	76	**/\r
ee4dc24f RN	77	STATIC CONST ACPI_PARSER GtPlatformTimerHeaderParser[] = {\r
	78	{L"Type", 1, 0, NULL, NULL, (VOID**)&PlatformTimerType, NULL, NULL},\r
	79	{L"Length", 2, 1, NULL, NULL, (VOID**)&PlatformTimerLength, NULL, NULL},\r
	80	{L"Reserved", 1, 3, NULL, NULL, NULL, NULL, NULL}\r
	81	};\r
	82	\r
a6eaba4d DB	83	/**\r
	84	An ACPI_PARSER array describing the Platform GT Block.\r
	85	**/\r
ee4dc24f RN	86	STATIC CONST ACPI_PARSER GtBlockParser[] = {\r
	87	{L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
	88	{L"Length", 2, 1, L"%d", NULL, (VOID**)&GtBlockLength, NULL, NULL},\r
	89	{L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
	90	{L"Physical address (CntCtlBase)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	91	{L"Timer Count", 4, 12, L"%d", NULL, (VOID**)&GtBlockTimerCount,\r
	92	ValidateGtBlockTimerCount, NULL},\r
	93	{L"Timer Offset", 4, 16, L"%d", NULL, (VOID**)&GtBlockTimerOffset, NULL,\r
	94	NULL}\r
	95	};\r
	96	\r
a6eaba4d DB	97	/**\r
	98	An ACPI_PARSER array describing the GT Block timer.\r
	99	**/\r
ee4dc24f RN	100	STATIC CONST ACPI_PARSER GtBlockTimerParser[] = {\r
	101	{L"Frame Number", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
	102	{L"Reserved", 3, 1, L"%x %x %x", Dump3Chars, NULL, NULL, NULL},\r
	103	{L"Physical address (CntBaseX)", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	104	{L"Physical address (CntEL0BaseX)", 8, 12, L"0x%lx", NULL, NULL, NULL,\r
	105	NULL},\r
	106	{L"Physical Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
	107	{L"Physical Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL},\r
	108	{L"Virtual Timer GSIV", 4, 28, L"0x%x", NULL, NULL, NULL, NULL},\r
	109	{L"Virtual Timer Flags", 4, 32, L"0x%x", NULL, NULL, NULL, NULL},\r
	110	{L"Common Flags", 4, 36, L"0x%x", NULL, NULL, NULL, NULL}\r
	111	};\r
	112	\r
a6eaba4d DB	113	/**\r
	114	An ACPI_PARSER array describing the Platform Watchdog.\r
	115	**/\r
ee4dc24f RN	116	STATIC CONST ACPI_PARSER SBSAGenericWatchdogParser[] = {\r
	117	{L"Type", 1, 0, L"%d", NULL, NULL, NULL, NULL},\r
	118	{L"Length", 2, 1, L"%d", NULL, NULL, NULL, NULL},\r
	119	{L"Reserved", 1, 3, L"%x", NULL, NULL, NULL, NULL},\r
	120	{L"RefreshFrame Physical address", 8, 4, L"0x%lx", NULL, NULL, NULL, NULL},\r
	121	{L"ControlFrame Physical address", 8, 12, L"0x%lx", NULL, NULL, NULL, NULL},\r
	122	{L"Watchdog Timer GSIV", 4, 20, L"0x%x", NULL, NULL, NULL, NULL},\r
	123	{L"Watchdog Timer Flags", 4, 24, L"0x%x", NULL, NULL, NULL, NULL}\r
	124	};\r
	125	\r
a6eaba4d DB	126	/**\r
a6eaba4d DB	127	This function validates the GT Block timer count.\r
ee4dc24f RN	128	\r
	129	@param [in] Ptr Pointer to the start of the field data.\r
	130	@param [in] Context Pointer to context specific information e.g. this\r
	131	could be a pointer to the ACPI table header.\r
a6eaba4d	132	**/\r
ee4dc24f RN	133	STATIC\r
	134	VOID\r
	135	EFIAPI\r
	136	ValidateGtBlockTimerCount (\r
	137	IN UINT8* Ptr,\r
	138	IN VOID* Context\r
	139	)\r
	140	{\r
f75c7478 DB	141	UINT32 BlockTimerCount;\r
	142	\r
	143	BlockTimerCount = (UINT32)Ptr;\r
	144	\r
ee4dc24f RN	145	if (BlockTimerCount > 8) {\r
	146	IncrementErrorCount ();\r
	147	Print (\r
	148	L"\nERROR: Timer Count = %d. Max Timer Count is 8.",\r
	149	BlockTimerCount\r
	150	);\r
	151	}\r
	152	}\r
	153	\r
a6eaba4d DB	154	/**\r
a6eaba4d DB	155	This function parses the Platform GT Block.\r
ee4dc24f RN	156	\r
	157	@param [in] Ptr Pointer to the start of the GT Block data.\r
	158	@param [in] Length Length of the GT Block structure.\r
a6eaba4d	159	**/\r
ee4dc24f RN	160	STATIC\r
	161	VOID\r
	162	DumpGTBlock (\r
	163	IN UINT8* Ptr,\r
68bef3f0	164	IN UINT32 Length\r
ee4dc24f RN	165	)\r
	166	{\r
	167	UINT32 Index;\r
	168	UINT32 Offset;\r
68bef3f0	169	UINT32 GTBlockTimerLength;\r
ee4dc24f RN	170	\r
	171	Offset = ParseAcpi (\r
	172	TRUE,\r
	173	2,\r
	174	"GT Block",\r
	175	Ptr,\r
	176	Length,\r
	177	PARSER_PARAMS (GtBlockParser)\r
	178	);\r
	179	GTBlockTimerLength = (GtBlockLength - Offset) / (GtBlockTimerCount);\r
	180	Length -= Offset;\r
	181	\r
	182	if (*GtBlockTimerCount != 0) {\r
	183	Ptr += (*GtBlockTimerOffset);\r
	184	Index = 0;\r
	185	while ((Index < (*GtBlockTimerCount)) && (Length >= GTBlockTimerLength)) {\r
	186	Offset = ParseAcpi (\r
	187	TRUE,\r
	188	2,\r
	189	"GT Block Timer",\r
	190	Ptr,\r
	191	GTBlockTimerLength,\r
	192	PARSER_PARAMS (GtBlockTimerParser)\r
	193	);\r
	194	// Increment by GT Block Timer structure size\r
	195	Ptr += Offset;\r
	196	Length -= Offset;\r
	197	Index++;\r
	198	}\r
	199	\r
	200	if (Length != 0) {\r
	201	IncrementErrorCount ();\r
	202	Print (\r
	203	L"ERROR:GT Block Timer length mismatch. Unparsed %d bytes.\n",\r
	204	Length\r
	205	);\r
	206	}\r
	207	}\r
	208	}\r
	209	\r
a6eaba4d DB	210	/**\r
a6eaba4d DB	211	This function parses the Platform Watchdog timer.\r
ee4dc24f RN	212	\r
	213	@param [in] Ptr Pointer to the start of the watchdog timer data.\r
	214	@param [in] Length Length of the watchdog timer structure.\r
a6eaba4d	215	**/\r
ee4dc24f RN	216	STATIC\r
	217	VOID\r
	218	DumpWatchdogTimer (\r
	219	IN UINT8* Ptr,\r
	220	IN UINT16 Length\r
	221	)\r
	222	{\r
	223	ParseAcpi (\r
	224	TRUE,\r
	225	2,\r
	226	"SBSA Generic Watchdog",\r
	227	Ptr,\r
	228	Length,\r
	229	PARSER_PARAMS (SBSAGenericWatchdogParser)\r
	230	);\r
	231	}\r
	232	\r
a6eaba4d DB	233	/**\r
a6eaba4d DB	234	This function parses the ACPI GTDT table.\r
ee4dc24f RN	235	When trace is enabled this function parses the GTDT table and\r
	236	traces the ACPI table fields.\r
	237	\r
	238	This function also parses the following platform timer structures:\r
	239	- GT Block timer\r
	240	- Watchdog timer\r
	241	\r
	242	This function also performs validation of the ACPI table fields.\r
	243	\r
	244	@param [in] Trace If TRUE, trace the ACPI fields.\r
	245	@param [in] Ptr Pointer to the start of the buffer.\r
	246	@param [in] AcpiTableLength Length of the ACPI table.\r
	247	@param [in] AcpiTableRevision Revision of the ACPI table.\r
a6eaba4d	248	**/\r
ee4dc24f RN	249	VOID\r
	250	EFIAPI\r
	251	ParseAcpiGtdt (\r
	252	IN BOOLEAN Trace,\r
	253	IN UINT8* Ptr,\r
	254	IN UINT32 AcpiTableLength,\r
	255	IN UINT8 AcpiTableRevision\r
	256	)\r
	257	{\r
	258	UINT32 Index;\r
	259	UINT8* TimerPtr;\r
	260	\r
	261	if (!Trace) {\r
	262	return;\r
	263	}\r
	264	\r
	265	ParseAcpi (\r
	266	TRUE,\r
	267	0,\r
	268	"GTDT",\r
	269	Ptr,\r
	270	AcpiTableLength,\r
	271	PARSER_PARAMS (GtdtParser)\r
	272	);\r
	273	\r
	274	if (*GtdtPlatformTimerCount != 0) {\r
	275	TimerPtr = Ptr + (*GtdtPlatformTimerOffset);\r
	276	Index = 0;\r
	277	do {\r
	278	// Parse the Platform Timer Header\r
	279	ParseAcpi (\r
	280	FALSE,\r
	281	0,\r
	282	NULL,\r
	283	TimerPtr,\r
	284	4, // GT Platform Timer structure header length.\r
	285	PARSER_PARAMS (GtPlatformTimerHeaderParser)\r
	286	);\r
	287	switch (*PlatformTimerType) {\r
	288	case EFI_ACPI_6_2_GTDT_GT_BLOCK:\r
	289	DumpGTBlock (TimerPtr, *PlatformTimerLength);\r
	290	break;\r
	291	case EFI_ACPI_6_2_GTDT_SBSA_GENERIC_WATCHDOG:\r
	292	DumpWatchdogTimer (TimerPtr, *PlatformTimerLength);\r
	293	break;\r
	294	default:\r
	295	IncrementErrorCount ();\r
	296	Print (\r
	297	L"ERROR: INVALID Platform Timer Type = %d\n",\r
	298	*PlatformTimerType\r
	299	);\r
	300	break;\r
	301	} // switch\r
	302	TimerPtr += (*PlatformTimerLength);\r
	303	Index++;\r
	304	} while (Index < *GtdtPlatformTimerCount);\r
	305	}\r
	306	}\r