[staging/LoongArch RESEND PATCH v1 25/33] MdePkg/BaseCpuLib: LoongArch Base CPU library implementation.


Chao Li
 

Implement LoongArch CPU related functions in BaseCpuLib.

Cc: Michael D Kinney <michael.d.kinney@...>
Cc: Liming Gao <gaoliming@...>
Cc: Zhiguang Liu <zhiguang.liu@...>

Signed-off-by: Chao Li <lichao@...>
---
MdePkg/Library/BaseCpuLib/BaseCpuLib.inf | 7 ++++++-
MdePkg/Library/BaseCpuLib/BaseCpuLib.uni | 5 +++--
MdePkg/Library/BaseCpuLib/LoongArch/CpuFlushTlb.S | 15 +++++++++++++++
MdePkg/Library/BaseCpuLib/LoongArch/CpuSleep.S | 15 +++++++++++++++
4 files changed, 39 insertions(+), 3 deletions(-)
create mode 100644 MdePkg/Library/BaseCpuLib/LoongArch/CpuFlushTlb.S
create mode 100644 MdePkg/Library/BaseCpuLib/LoongArch/CpuSleep.S

diff --git a/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf b/MdePkg/Library/Base=
CpuLib/BaseCpuLib.inf
index 950f5229b2..3101fc656e 100644
--- a/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
+++ b/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf
@@ -8,6 +8,7 @@
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>=
=0D
# Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>=0D
# Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All righ=
ts reserved.<BR>=0D
+# Portions Copyright (c) 2022, Loongson Technology Corporation Limited. A=
ll rights reserved.<BR>=0D
#=0D
# SPDX-License-Identifier: BSD-2-Clause-Patent=0D
#=0D
@@ -25,7 +26,7 @@
=0D
=0D
#=0D
-# VALID_ARCHITECTURES =3D IA32 X64 EBC ARM AARCH64 RISCV64=0D
+# VALID_ARCHITECTURES =3D IA32 X64 EBC ARM AARCH64 RISCV64 LOON=
GARCH64=0D
#=0D
=0D
[Sources.IA32]=0D
@@ -63,6 +64,10 @@
[Sources.RISCV64]=0D
RiscV/Cpu.S=0D
=0D
+[Sources.LOONGARCH64]=0D
+ LoongArch/CpuFlushTlb.S | GCC=0D
+ LoongArch/CpuSleep.S | GCC=0D
+=0D
[Packages]=0D
MdePkg/MdePkg.dec=0D
=0D
diff --git a/MdePkg/Library/BaseCpuLib/BaseCpuLib.uni b/MdePkg/Library/Base=
CpuLib/BaseCpuLib.uni
index 80dc495786..7c5c8dfb37 100644
--- a/MdePkg/Library/BaseCpuLib/BaseCpuLib.uni
+++ b/MdePkg/Library/BaseCpuLib/BaseCpuLib.uni
@@ -1,13 +1,14 @@
// /** @file=0D
// Instance of CPU Library for various architecture.=0D
//=0D
-// CPU Library implemented using ASM functions for IA-32, X64 and RISCV64,=
=0D
+// CPU Library implemented using ASM functions for IA-32, X64, RISCV64 and=
LoongArch64,=0D
// PAL CALLs for IPF, and empty functions for EBC.=0D
//=0D
// Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>=
=0D
// Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>=
=0D
// Portions copyright (c) 2011 - 2013, ARM Ltd. All rights reserved.<BR>=0D
// Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All righ=
ts reserved.<BR>=0D
+// Portions Copyright (c) 2022, Loongson Technology Corporation Limited. A=
ll rights reserved.<BR>=0D
//=0D
// SPDX-License-Identifier: BSD-2-Clause-Patent=0D
//=0D
@@ -16,5 +17,5 @@
=0D
#string STR_MODULE_ABSTRACT #language en-US "Instance of CPU L=
ibrary for various architectures"=0D
=0D
-#string STR_MODULE_DESCRIPTION #language en-US "CPU Library imple=
mented using ASM functions for IA-32, X64 and RISCV64, PAL CALLs for IPF, a=
nd empty functions for EBC."=0D
+#string STR_MODULE_DESCRIPTION #language en-US "CPU Library imple=
mented using ASM functions for IA-32, X64, RISCV64 and LoongArch64, PAL CAL=
Ls for IPF, and empty functions for EBC."=0D
=0D
diff --git a/MdePkg/Library/BaseCpuLib/LoongArch/CpuFlushTlb.S b/MdePkg/Lib=
rary/BaseCpuLib/LoongArch/CpuFlushTlb.S
new file mode 100644
index 0000000000..8b792f0a37
--- /dev/null
+++ b/MdePkg/Library/BaseCpuLib/LoongArch/CpuFlushTlb.S
@@ -0,0 +1,15 @@
+#-------------------------------------------------------------------------=
-----=0D
+#=0D
+# CpuFlushTlb() for LoongArch64=0D
+#=0D
+# Copyright (c) 2022, Loongson Technology Corporation Limited. All rights =
reserved.<BR>=0D
+#=0D
+# SPDX-License-Identifier: BSD-2-Clause-Patent=0D
+#=0D
+#-------------------------------------------------------------------------=
-----=0D
+ASM_GLOBAL ASM_PFX(CpuFlushTlb)=0D
+=0D
+ASM_PFX(CpuFlushTlb):=0D
+ tlbflush=0D
+ jirl $zero, $ra, 0=0D
+ .end=0D
diff --git a/MdePkg/Library/BaseCpuLib/LoongArch/CpuSleep.S b/MdePkg/Librar=
y/BaseCpuLib/LoongArch/CpuSleep.S
new file mode 100644
index 0000000000..eb31b10714
--- /dev/null
+++ b/MdePkg/Library/BaseCpuLib/LoongArch/CpuSleep.S
@@ -0,0 +1,15 @@
+#-------------------------------------------------------------------------=
-----=0D
+#=0D
+# CpuSleep() for LoongArch64=0D
+#=0D
+# Copyright (c) 2022, Loongson Technology Corporation Limited. All rights =
reserved.<BR>=0D
+#=0D
+# SPDX-License-Identifier: BSD-2-Clause-Patent=0D
+#=0D
+#-------------------------------------------------------------------------=
-----=0D
+ASM_GLOBAL ASM_PFX(CpuSleep)=0D
+=0D
+ASM_PFX(CpuSleep):=0D
+ idle 0=0D
+ jirl $zero, $ra, 0=0D
+ .end=0D
--=20
2.27.0

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