From: "levi.yun" <yeoreum.yun@arm.com>
To: <devel@edk2.groups.io>
Cc: <yeoreum.yun@arm.com>, <zhichao.gao@intel.com>,
<pedro.falcato@gmail.com>, <sami.mujawar@arm.com>,
<pierre.gondois@arm.com>, <nd@arm.com>
Subject: [edk2-devel] [PATCH v2 1/1] ShellPkg: Acpiview/GTDT: Print timer flags information.
Date: Mon, 17 Jul 2023 08:44:22 +0100 [thread overview]
Message-ID: <20230717074422.1936009-1-yeoreum.yun@arm.com> (raw)
Currently, GTDT only prints the value of timer flags in hex.
This change prints the detail information about Timer flags in GTDT.
before:
Shell> acpiview -s GTDT
...
Non-Secure EL1 timer FLAGS : 0x2
Virtual timer GSIV : 0x1B
Virtual timer FLAGS : 0x2
...
after:
Shell> acpiview -s GTDT
...
Non-Secure EL1 timer FLAGS : 0x2
Timer Interrupt Mode : Level Trigger(0)
Timer Interrupt Polarity : Active Low(1)
Always-on Capability : 0
Reserved : 0
Virtual timer GSIV : 0x1B
Virtual timer FLAGS : 0x2
Signed-off-by: levi.yun <yeoreum.yun@arm.com>
Tested-by: Pierre Gondois <pierre.gondois@arm.com>
---
The changes can be seen at https://github.com/LeviYeoReum/edk2/tree/2711_gtdt_flags_v2
Notes:
v2:
- Fix typos.
- Remove unnecessary type casting.
ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Gtdt/GtdtParser.c | 111 +++++++++++++++++---
1 file changed, 98 insertions(+), 13 deletions(-)
diff --git a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Gtdt/GtdtParser.c b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Gtdt/GtdtParser.c
index e62927098a010a0e1dad8361dcfc6559d32dcebf..c95b96a673bf7e6afea7902f5730dcb61a3ce508 100644
--- a/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Gtdt/GtdtParser.c
+++ b/ShellPkg/Library/UefiShellAcpiViewCommandLib/Parsers/Gtdt/GtdtParser.c
@@ -84,33 +84,118 @@ ValidateGtFrameNumber (
}
}
+/**
+ This function prints trigger mode information in timer flags.
+
+ @param [in] Format Print format.
+ @param [in] Ptr Pointer to the start of the field data.
+**/
+STATIC
+VOID
+EFIAPI
+PrintTimerInterruptMode (
+ IN CONST CHAR16 *Format OPTIONAL,
+ IN UINT8 *Ptr
+ )
+{
+ UINT8 TriggerMode;
+
+ TriggerMode = *Ptr;
+
+ Print (
+ L"%s(%d)",
+ (TriggerMode ? L"Edge Trigger" : L"Level Trigger"),
+ TriggerMode
+ );
+}
+
+/**
+ This function prints polarity information in timer flags.
+
+ @param [in] Format Print format.
+ @param [in] Ptr Pointer to the start of the field data.
+**/
+STATIC
+VOID
+EFIAPI
+PrintTimerInterruptPolarity (
+ IN CONST CHAR16 *Format OPTIONAL,
+ IN UINT8 *Ptr
+ )
+{
+ UINT8 Polarity;
+
+ Polarity = *Ptr;
+
+ Print (
+ L"%s(%d)",
+ (Polarity ? L"Active Low" : L"Active High"),
+ Polarity
+ );
+}
+
+/**
+ An ACPI_PARSER array describing the Timer Flags Field in GTDT Table.
+**/
+STATIC CONST ACPI_PARSER TimerFlagsParser[] = {
+ { L"Timer Interrupt Mode", 1, 0, NULL, PrintTimerInterruptMode, NULL, NULL, NULL },
+ { L"Timer Interrupt Polarity", 1, 1, NULL, PrintTimerInterruptPolarity, NULL, NULL, NULL },
+ { L"Always-on Capability", 1, 2, L"%d", NULL, NULL, NULL, NULL },
+ { L"Reserved", 29, 3, L"%d", NULL, NULL, NULL, NULL },
+};
+
+/**
+ This function parses the Timer Flags.
+
+ @param [in] Format Print format.
+ @param [in] Ptr Pointer to the start of the Timer flags.
+ **/
+STATIC
+VOID
+EFIAPI
+DumpTimerFlags (
+ IN CONST CHAR16 *Format OPTIONAL,
+ IN UINT8 *Ptr
+ )
+{
+ DumpUint32 (L"0x%x\n", Ptr);
+ ParseAcpiBitFields (
+ TRUE,
+ 2,
+ NULL,
+ Ptr,
+ 4,
+ PARSER_PARAMS (TimerFlagsParser)
+ );
+}
+
/**
An ACPI_PARSER array describing the ACPI GTDT Table.
**/
STATIC CONST ACPI_PARSER GtdtParser[] = {
PARSE_ACPI_HEADER (&AcpiHdrInfo),
- { L"CntControlBase Physical Address",8, 36, L"0x%lx", NULL, NULL,
+ { L"CntControlBase Physical Address",8, 36, L"0x%lx", NULL, NULL,
NULL, NULL },
- { L"Reserved", 4, 44, L"0x%x", NULL, NULL,NULL, NULL },
- { L"Secure EL1 timer GSIV", 4, 48, L"0x%x", NULL, NULL,NULL, NULL },
- { L"Secure EL1 timer FLAGS", 4, 52, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Reserved", 4, 44, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Secure EL1 timer GSIV", 4, 48, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Secure EL1 timer FLAGS", 4, 52, NULL, DumpTimerFlags, NULL,NULL, NULL },
- { L"Non-Secure EL1 timer GSIV", 4, 56, L"0x%x", NULL, NULL,NULL, NULL },
- { L"Non-Secure EL1 timer FLAGS", 4, 60, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Non-Secure EL1 timer GSIV", 4, 56, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Non-Secure EL1 timer FLAGS", 4, 60, NULL, DumpTimerFlags, NULL,NULL, NULL },
- { L"Virtual timer GSIV", 4, 64, L"0x%x", NULL, NULL,NULL, NULL },
- { L"Virtual timer FLAGS", 4, 68, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Virtual timer GSIV", 4, 64, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Virtual timer FLAGS", 4, 68, L"0x%x", DumpTimerFlags, NULL,NULL, NULL },
- { L"Non-Secure EL2 timer GSIV", 4, 72, L"0x%x", NULL, NULL,NULL, NULL },
- { L"Non-Secure EL2 timer FLAGS", 4, 76, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Non-Secure EL2 timer GSIV", 4, 72, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Non-Secure EL2 timer FLAGS", 4, 76, L"0x%x", DumpTimerFlags, NULL,NULL, NULL },
- { L"CntReadBase Physical address", 8, 80, L"0x%lx", NULL, NULL,NULL, NULL },
+ { L"CntReadBase Physical address", 8, 80, L"0x%lx", NULL, NULL,NULL, NULL },
{ L"Platform Timer Count", 4, 88, L"%d", NULL,
(VOID **)&GtdtPlatformTimerCount, NULL, NULL },
{ L"Platform Timer Offset", 4, 92, L"0x%x", NULL,
(VOID **)&GtdtPlatformTimerOffset,NULL, NULL },
- { L"Virtual EL2 Timer GSIV", 4, 96, L"0x%x", NULL, NULL,NULL, NULL },
- { L"Virtual EL2 Timer Flags", 4, 100, L"0x%x", NULL, NULL,NULL, NULL }
+ { L"Virtual EL2 Timer GSIV", 4, 96, L"0x%x", NULL, NULL,NULL, NULL },
+ { L"Virtual EL2 Timer Flags", 4, 100, L"0x%x", NULL, NULL,NULL, NULL }
};
/**
--
Guid("CE165669-3EF3-493F-B85D-6190EE5B9759")
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next reply other threads:[~2023-07-17 7:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-17 7:44 levi.yun [this message]
2023-07-27 2:54 ` [edk2-devel] [PATCH v2 1/1] ShellPkg: Acpiview/GTDT: Print timer flags information Gao, Zhichao
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