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| author | Chao Li <lichao@loongson.cn> | 2023-10-12 11:18:28 +0800 |
|---|---|---|
| committer | Liming Gao <gaoliming@byosoft.com.cn> | 2024-02-06 23:51:47 +0800 |
| commit | 414ad233a51192662ed66ceee7a23007c6710ec9 (patch) | |
| tree | ac15c7230782745e18ec5140f45e85e6c2e3b2e1 | |
| parent | 344dc4b9d3c29965ecc92686f9f7a7e2e69c6576 (diff) | |
| download | edk2-414ad233a51192662ed66ceee7a23007c6710ec9.tar.gz edk2-414ad233a51192662ed66ceee7a23007c6710ec9.tar.bz2 edk2-414ad233a51192662ed66ceee7a23007c6710ec9.zip | |
MdePkg: Add read stable counter operation for LoongArch
Add LoongArch gets stable counter ASM function.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
| -rw-r--r-- | MdePkg/Include/Library/BaseLib.h | 12 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/BaseLib.inf | 1 | ||||
| -rw-r--r-- | MdePkg/Library/BaseLib/LoongArch64/ReadStableCounter.S | 24 |
3 files changed, 37 insertions, 0 deletions
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h index d64e406b7c..29009adbc9 100644 --- a/MdePkg/Include/Library/BaseLib.h +++ b/MdePkg/Include/Library/BaseLib.h @@ -339,6 +339,18 @@ AsmCpucfg ( OUT UINT32 *Data
);
+/**
+ Gets the timer count value.
+
+ @param[] VOID
+ @retval timer count value.
+
+**/
+UINTN
+AsmReadStableCounter (
+ VOID
+ );
+
#endif // defined (MDE_CPU_LOONGARCH64)
//
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf index 2f1e3b3d91..1dad587b0c 100644 --- a/MdePkg/Library/BaseLib/BaseLib.inf +++ b/MdePkg/Library/BaseLib/BaseLib.inf @@ -422,6 +422,7 @@ LoongArch64/SwitchStack.S | GCC
LoongArch64/ExceptionBase.S | GCC
LoongArch64/Cpucfg.S | GCC
+ LoongArch64/ReadStableCounter.S | GCC
[Packages]
MdePkg/MdePkg.dec
diff --git a/MdePkg/Library/BaseLib/LoongArch64/ReadStableCounter.S b/MdePkg/Library/BaseLib/LoongArch64/ReadStableCounter.S new file mode 100644 index 0000000000..aa74ff603e --- /dev/null +++ b/MdePkg/Library/BaseLib/LoongArch64/ReadStableCounter.S @@ -0,0 +1,24 @@ +#------------------------------------------------------------------------------
+#
+# LoongArch Read Stable Counter
+#
+# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+ASM_GLOBAL ASM_PFX(AsmReadStableCounter)
+
+#/**
+# Gets the timer count value.
+#
+# @param[] VOID
+# @retval timer count value.
+#
+#**/
+
+ASM_PFX(AsmReadStableCounter):
+ rdtime.d $a0, $zero
+ jirl $zero, $ra, 0
+ .end
|