Acked-by: Liming Gao <gaolim...@byosoft.com.cn> > -----邮件原件----- > 发件人: Chang, Abner (HPS SW/FW Technologist) <abner.ch...@hpe.com> > 发送时间: 2021年7月14日 22:12 > 收件人: Schaefer, Daniel <daniel.schae...@hpe.com>; devel@edk2.groups.io > 抄送: Michael D Kinney <michael.d.kin...@intel.com>; Liming Gao > <gaolim...@byosoft.com.cn>; Zhiguang Liu <zhiguang....@intel.com>; Leif > Lindholm <l...@nuviainc.com> > 主题: RE: [PATCH v1 1/1] Add MemoryFence implementation for RiscV64 > > Reviewed-by: Abner Chang <abner.ch...@hpe.com> > > > -----Original Message----- > > From: Schaefer, Daniel > > Sent: Sunday, May 16, 2021 2:13 AM > > To: devel@edk2.groups.io > > Cc: Chang, Abner (HPS SW/FW Technologist) <abner.ch...@hpe.com>; > > Michael D Kinney <michael.d.kin...@intel.com>; Liming Gao > > <gaolim...@byosoft.com.cn>; Zhiguang Liu <zhiguang....@intel.com>; Leif > > Lindholm <l...@nuviainc.com> > > Subject: [PATCH v1 1/1] Add MemoryFence implementation for RiscV64 > > > > Cc: Abner Chang <abner.ch...@hpe.com> > > Cc: Michael D Kinney <michael.d.kin...@intel.com> > > Cc: Liming Gao <gaolim...@byosoft.com.cn> > > Cc: Zhiguang Liu <zhiguang....@intel.com> > > Cc: Leif Lindholm <l...@nuviainc.com> > > Signed-off-by: Daniel Schaefer <daniel.schae...@hpe.com> > > --- > > MdePkg/Library/BaseLib/BaseLib.inf | 1 + > > MdePkg/Library/BaseLib/RiscV64/MemoryFence.S | 33 > > ++++++++++++++++++++ > > 2 files changed, 34 insertions(+) > > > > diff --git a/MdePkg/Library/BaseLib/BaseLib.inf > > b/MdePkg/Library/BaseLib/BaseLib.inf > > index b76f3af380ea..b7ab5f632366 100644 > > --- a/MdePkg/Library/BaseLib/BaseLib.inf > > +++ b/MdePkg/Library/BaseLib/BaseLib.inf > > @@ -399,6 +399,7 @@ > > RiscV64/DisableInterrupts.c > > > > RiscV64/EnableInterrupts.c > > > > RiscV64/CpuPause.c > > > > + RiscV64/MemoryFence.S | GCC > > > > RiscV64/RiscVSetJumpLongJump.S | GCC > > > > RiscV64/RiscVCpuBreakpoint.S | GCC > > > > RiscV64/RiscVCpuPause.S | GCC > > > > diff --git a/MdePkg/Library/BaseLib/RiscV64/MemoryFence.S > > b/MdePkg/Library/BaseLib/RiscV64/MemoryFence.S > > new file mode 100644 > > index 000000000000..283df9356a9a > > --- /dev/null > > +++ b/MdePkg/Library/BaseLib/RiscV64/MemoryFence.S > > @@ -0,0 +1,33 @@ > > +##------------------------------------------------------------------------- ----- > > > > +# > > > > +# MemoryFence() for RiscV64 > > > > + > > > > +# Copyright (c) 2021, Hewlett Packard Enterprise Development. All rights > > reserved. > > > > +# > > > > +# SPDX-License-Identifier: BSD-2-Clause-Patent > > > > +# > > > > +##------------------------------------------------------------------------- ----- > > > > + > > > > +.text > > > > +.p2align 2 > > > > + > > > > +ASM_GLOBAL ASM_PFX(MemoryFence) > > > > + > > > > + > > > > +#/** > > > > +# Used to serialize load and store operations. > > > > +# > > > > +# All loads and stores that proceed calls to this function are guaranteed > to > > be > > > > +# globally visible when this function returns. > > > > +# > > > > +#**/ > > > > +#VOID > > > > +#EFIAPI > > > > +#MemoryFence ( > > > > +# VOID > > > > +# ); > > > > +# > > > > +ASM_PFX(MemoryFence): > > > > + // Fence on all memory and I/O > > > > + fence > > > > + ret > > > > -- > > 2.30.1
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