Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Chao Li
> Sent: Sunday, November 5, 2023 7:27 PM
> To: devel@edk2.groups.io
> Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming
> <gaoliming@byosoft.com.cn>; Liu, Zhiguang <zhiguang.liu@intel.com>
> Subject: [edk2-devel] [PATCH v2 04/30] MdePkg: Add LoongArch64 local
> interrupt function set into BaseLib
>
> Adding LoongArch local interrupt function set, which is used to
> control
> the opening or closing of the local interrupt when the global
> interrupt
> is enabled.
>
> 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>
> ---
> MdePkg/Include/Library/BaseLib.h | 20 +++++++++++++++++
> .../BaseLib/LoongArch64/DisableInterrupts.S | 22 ++++++++++++++----
> -
> .../BaseLib/LoongArch64/EnableInterrupts.S | 22 ++++++++++++++----
> -
> 3 files changed, 54 insertions(+), 10 deletions(-)
>
> diff --git a/MdePkg/Include/Library/BaseLib.h
> b/MdePkg/Include/Library/BaseLib.h
> index a9a69c734c..93a014cd49 100644
> --- a/MdePkg/Include/Library/BaseLib.h
> +++ b/MdePkg/Include/Library/BaseLib.h
> @@ -249,6 +249,26 @@ SetTlbRebaseAddress (
> IN UINT64
> );
>
> +/**
> + Enables local CPU interrupts.
> +
> + @param Needs to enable local interrupt bit.
> +**/
> +VOID
> +EnableLocalInterrupts (
> + IN UINT16
> + );
> +
> +/**
> + Disables local CPU interrupts.
> +
> + @param Needs to disable local interrupt bit.
> +**/
> +VOID
> +DisableLocalInterrupts (
> + IN UINT16
> + );
> +
> #endif // defined (MDE_CPU_LOONGARCH64)
>
> //
> diff --git a/MdePkg/Library/BaseLib/LoongArch64/DisableInterrupts.S
> b/MdePkg/Library/BaseLib/LoongArch64/DisableInterrupts.S
> index 0f228339af..5de10e9e7a 100644
> --- a/MdePkg/Library/BaseLib/LoongArch64/DisableInterrupts.S
> +++ b/MdePkg/Library/BaseLib/LoongArch64/DisableInterrupts.S
> @@ -1,21 +1,33 @@
> #--------------------------------------------------------------------
> ----------
> #
> -# LoongArch interrupt disable
> +# LoongArch interrupt disable operations
> #
> -# Copyright (c) 2022, Loongson Technology Corporation Limited. All
> rights reserved.<BR>
> +# Copyright (c) 2023, Loongson Technology Corporation Limited. All
> rights reserved.<BR>
> #
> # SPDX-License-Identifier: BSD-2-Clause-Patent
> #
> #--------------------------------------------------------------------
> ----------
>
> +#include <Base.h>
> +#include <Register/LoongArch64/Csr.h>
> +
> +ASM_GLOBAL ASM_PFX(DisableLocalInterrupts)
> ASM_GLOBAL ASM_PFX(DisableInterrupts)
>
> #/**
> -# Disables CPU interrupts.
> +# Disables local CPU interrupts.
> +#
> +# @param Needs to disable local interrupt bit.
> #**/
> +ASM_PFX(DisableLocalInterrupts):
> + csrxchg $zero, $a0, LOONGARCH_CSR_ECFG
> + jirl $zero, $ra, 0
>
> +#/**
> +# Disables global CPU interrupts.
> +#**/
> ASM_PFX(DisableInterrupts):
> - li.w $t0, 0x4
> - csrxchg $zero, $t0, 0x0
> + li.w $t0, BIT2
> + csrxchg $zero, $t0, LOONGARCH_CSR_CRMD
> jirl $zero, $ra, 0
> .end
> diff --git a/MdePkg/Library/BaseLib/LoongArch64/EnableInterrupts.S
> b/MdePkg/Library/BaseLib/LoongArch64/EnableInterrupts.S
> index 3c34fb2cdd..73adcd7b0c 100644
> --- a/MdePkg/Library/BaseLib/LoongArch64/EnableInterrupts.S
> +++ b/MdePkg/Library/BaseLib/LoongArch64/EnableInterrupts.S
> @@ -1,21 +1,33 @@
> #--------------------------------------------------------------------
> ----------
> #
> -# LoongArch interrupt enable
> +# LoongArch interrupt enable operations
> #
> -# Copyright (c) 2022, Loongson Technology Corporation Limited. All
> rights reserved.<BR>
> +# Copyright (c) 2023, Loongson Technology Corporation Limited. All
> rights reserved.<BR>
> #
> # SPDX-License-Identifier: BSD-2-Clause-Patent
> #
> #--------------------------------------------------------------------
> ----------
>
> +#include <Base.h>
> +#include <Register/LoongArch64/Csr.h>
> +
> +ASM_GLOBAL ASM_PFX(EnableLocalInterrupts)
> ASM_GLOBAL ASM_PFX(EnableInterrupts)
>
> #/**
> -# Enables CPU interrupts.
> +# Enables local CPU interrupts.
> +#
> +# @param Needs to enable local interrupt bit.
> #**/
> +ASM_PFX(EnableLocalInterrupts):
> + csrxchg $a0, $a0, LOONGARCH_CSR_ECFG
> + jirl $zero, $ra, 0
>
> +#/**
> +# Enables global CPU interrupts.
> +#**/
> ASM_PFX(EnableInterrupts):
> - li.w $t0, 0x4
> - csrxchg $t0, $t0, 0x0
> + li.w $t0, BIT2
> + csrxchg $t0, $t0, LOONGARCH_CSR_CRMD
> jirl $zero, $ra, 0
> .end
> --
> 2.27.0
>
>
>
>
>
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