diff options
author | Chao Li <lichao@loongson.cn> | 2024-01-03 10:27:56 +0800 |
---|---|---|
committer | Liming Gao <gaoliming@byosoft.com.cn> | 2024-02-06 23:51:47 +0800 |
commit | e5b50731539a419421ffe330dc3222d6a1d73c3d (patch) | |
tree | 1136977e0c7d399cd7773db33d166ef821149f79 /MdePkg/Library | |
parent | 9e1576bc10e6de364fbb285985cafc2ef403da74 (diff) | |
download | edk2-e5b50731539a419421ffe330dc3222d6a1d73c3d.zip edk2-e5b50731539a419421ffe330dc3222d6a1d73c3d.tar.gz edk2-e5b50731539a419421ffe330dc3222d6a1d73c3d.tar.bz2 |
MdePkg: Add LoongArch64 FPU function set into BaseCpuLib
Adding InitializeFloatingPointUnits, EnableFloatingPointUnits and
DisableFloatingPointUnits functions for LoongArch64.
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>
Diffstat (limited to 'MdePkg/Library')
-rw-r--r-- | MdePkg/Library/BaseCpuLib/BaseCpuLib.inf | 7 | ||||
-rw-r--r-- | MdePkg/Library/BaseCpuLib/LoongArch/DisableFpu.S | 17 | ||||
-rw-r--r-- | MdePkg/Library/BaseCpuLib/LoongArch/EnableFpu.S | 17 | ||||
-rw-r--r-- | MdePkg/Library/BaseCpuLib/LoongArch/InitializeFpu.S | 51 |
4 files changed, 90 insertions, 2 deletions
diff --git a/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf b/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf index 9a162af..89f6272 100644 --- a/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf +++ b/MdePkg/Library/BaseCpuLib/BaseCpuLib.inf @@ -65,8 +65,11 @@ RiscV/Cpu.S
[Sources.LOONGARCH64]
- LoongArch/CpuFlushTlb.S | GCC
- LoongArch/CpuSleep.S | GCC
+ LoongArch/CpuFlushTlb.S | GCC
+ LoongArch/CpuSleep.S | GCC
+ LoongArch/InitializeFpu.S | GCC
+ LoongArch/EnableFpu.S | GCC
+ LoongArch/DisableFpu.S | GCC
[Packages]
MdePkg/MdePkg.dec
diff --git a/MdePkg/Library/BaseCpuLib/LoongArch/DisableFpu.S b/MdePkg/Library/BaseCpuLib/LoongArch/DisableFpu.S new file mode 100644 index 0000000..33c6bf3 --- /dev/null +++ b/MdePkg/Library/BaseCpuLib/LoongArch/DisableFpu.S @@ -0,0 +1,17 @@ +#------------------------------------------------------------------------------
+#
+# DisableFloatingPointUnits() for LoongArch64
+#
+# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(DisableFloatingPointUnits)
+
+ASM_PFX(DisableFloatingPointUnits):
+ li.w $t0, 0x1
+ csrxchg $zero, $t0, 0x2
+
+ jirl $zero, $ra, 0
+ .end
diff --git a/MdePkg/Library/BaseCpuLib/LoongArch/EnableFpu.S b/MdePkg/Library/BaseCpuLib/LoongArch/EnableFpu.S new file mode 100644 index 0000000..3e4f741 --- /dev/null +++ b/MdePkg/Library/BaseCpuLib/LoongArch/EnableFpu.S @@ -0,0 +1,17 @@ +#------------------------------------------------------------------------------
+#
+# EnableFloatingPointUnits() for LoongArch64
+#
+# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(EnableFloatingPointUnits)
+
+ASM_PFX(EnableFloatingPointUnits):
+ li.w $t0, 0x1
+ csrxchg $t0, $t0, 0x2
+
+ jirl $zero, $ra, 0
+ .end
diff --git a/MdePkg/Library/BaseCpuLib/LoongArch/InitializeFpu.S b/MdePkg/Library/BaseCpuLib/LoongArch/InitializeFpu.S new file mode 100644 index 0000000..2cea555 --- /dev/null +++ b/MdePkg/Library/BaseCpuLib/LoongArch/InitializeFpu.S @@ -0,0 +1,51 @@ +#------------------------------------------------------------------------------
+#
+# InitializeFloatingPointUnits() for LoongArch64
+#
+# Copyright (c) 2024, Loongson Technology Corporation Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(InitializeFloatingPointUnits)
+
+ASM_PFX(InitializeFloatingPointUnits):
+ li.d $t0, 0x0 // RNE mode
+ movgr2fcsr $r0, $t0
+ li.d $t1, -1 // SNaN
+
+ movgr2fr.d $f0, $t1
+ movgr2fr.d $f1, $t1
+ movgr2fr.d $f2, $t1
+ movgr2fr.d $f3, $t1
+ movgr2fr.d $f4, $t1
+ movgr2fr.d $f5, $t1
+ movgr2fr.d $f6, $t1
+ movgr2fr.d $f7, $t1
+ movgr2fr.d $f8, $t1
+ movgr2fr.d $f9, $t1
+ movgr2fr.d $f10, $t1
+ movgr2fr.d $f11, $t1
+ movgr2fr.d $f12, $t1
+ movgr2fr.d $f13, $t1
+ movgr2fr.d $f14, $t1
+ movgr2fr.d $f15, $t1
+ movgr2fr.d $f16, $t1
+ movgr2fr.d $f17, $t1
+ movgr2fr.d $f18, $t1
+ movgr2fr.d $f19, $t1
+ movgr2fr.d $f20, $t1
+ movgr2fr.d $f21, $t1
+ movgr2fr.d $f22, $t1
+ movgr2fr.d $f23, $t1
+ movgr2fr.d $f24, $t1
+ movgr2fr.d $f25, $t1
+ movgr2fr.d $f26, $t1
+ movgr2fr.d $f27, $t1
+ movgr2fr.d $f28, $t1
+ movgr2fr.d $f29, $t1
+ movgr2fr.d $f30, $t1
+ movgr2fr.d $f31, $t1
+
+ jirl $zero, $ra, 0
+ .end
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