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MdePkg/BaseSynchronizationLib: LoongArch cache related code.

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4053

Support LoongArch cache related functions.

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>
Co-authored-by: Baoqi Zhang <zhangbaoqi@loongson.cn>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
This commit is contained in:
Chao Li
2022-10-01 07:38:07 +08:00
committed by mergify[bot]
parent f89815a125
commit 104df6136f
3 changed files with 361 additions and 0 deletions
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122
MdePkg/Library/BaseSynchronizationLib/LoongArch64/AsmSynchronization.S Normal file
View File

@@ -0,0 +1,122 @@
#------------------------------------------------------------------------------
#
# LoongArch synchronization ASM functions.
#
# Copyright (c) 2022, Loongson Technology Corporation Limited. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(AsmInternalSyncCompareExchange16)
ASM_GLOBAL ASM_PFX(AsmInternalSyncCompareExchange32)
ASM_GLOBAL ASM_PFX(AsmInternalSyncCompareExchange64)
ASM_GLOBAL ASM_PFX(AsmInternalSyncIncrement)
ASM_GLOBAL ASM_PFX(AsmInternalSyncDecrement)
/**
UINT32
EFIAPI
AsmInternalSyncCompareExchange16 (
IN volatile UINT32 *Ptr32,
IN UINT64 Mask,
IN UINT64 LocalCompareValue,
IN UINT64 LocalExchangeValue
)
**/
ASM_PFX(AsmInternalSyncCompareExchange16):
1:
ll.w $t0, $a0, 0x0
and $t1, $t0, $a1
bne $t1, $a2, 2f
andn $t1, $t0, $a1
or $t1, $t1, $a3
sc.w $t1, $a0, 0x0
beqz $t1, 1b
b 3f
2:
dbar 0
3:
move $a0, $t0
jirl $zero, $ra, 0
/**
UINT32
EFIAPI
AsmInternalSyncCompareExchange32 (
IN volatile UINT32 *Value,
IN UINT64 CompareValue,
IN UINT64 ExchangeValue
)
**/
ASM_PFX(AsmInternalSyncCompareExchange32):
1:
ll.w $t0, $a0, 0x0
bne $t0, $a1, 2f
move $t0, $a2
sc.w $t0, $a0, 0x0
beqz $t0, 1b
b 3f
2:
dbar 0
3:
move $a0, $t0
jirl $zero, $ra, 0
/**
UINT64
EFIAPI
AsmInternalSyncCompareExchange64 (
IN volatile UINT64 *Value,
IN UINT64 CompareValue,
IN UINT64 ExchangeValue
)
**/
ASM_PFX(AsmInternalSyncCompareExchange64):
1:
ll.d $t0, $a0, 0x0
bne $t0, $a1, 2f
move $t0, $a2
sc.d $t0, $a0, 0x0
beqz $t0, 1b
b 3f
2:
dbar 0
3:
move $a0, $t0
jirl $zero, $ra, 0
/**
UINT32
EFIAPI
AsmInternalSyncIncrement (
IN volatile UINT32 *Value
)
**/
ASM_PFX(AsmInternalSyncIncrement):
move $t0, $a0
dbar 0
ld.w $t1, $t0, 0x0
li.w $t2, 1
amadd.w $t1, $t2, $t0
ld.w $a0, $t0, 0x0
jirl $zero, $ra, 0
/**
UINT32
EFIAPI
AsmInternalSyncDecrement (
IN volatile UINT32 *Value
)
**/
ASM_PFX(AsmInternalSyncDecrement):
move $t0, $a0
dbar 0
ld.w $t1, $t0, 0x0
li.w $t2, -1
amadd.w $t1, $t2, $t0
ld.w $a0, $t0, 0x0
jirl $zero, $ra, 0
.end