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* [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code.
@ 2020-04-21  7:53 Abner Chang
  2020-04-21  8:53 ` [edk2-devel] " Zhiguang Liu
  2020-04-22  9:03 ` Zhiguang Liu
  0 siblings, 2 replies; 4+ messages in thread
From: Abner Chang @ 2020-04-21  7:53 UTC (permalink / raw)
  To: devel
  Cc: abner.chang, Gilbert Chen, Leif Lindholm, Michael D Kinney,
	Liming Gao

Support RISC-V cache related functions.

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
---
 .../BaseSynchronizationLib.inf                |  5 ++
 .../RiscV64/Synchronization.S                 | 78 +++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S

diff --git a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
index 446bc19b63..83d5b8ed7c 100755
--- a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
+++ b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
@@ -3,6 +3,7 @@
 #
 #  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
 #  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+#  Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -78,6 +79,10 @@
   AArch64/Synchronization.S     | GCC
   AArch64/Synchronization.asm   | MSFT
 
+[Sources.RISCV64]
+  Synchronization.c
+  RiscV64/Synchronization.S
+
 [Packages]
   MdePkg/MdePkg.dec
 
diff --git a/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S b/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
new file mode 100644
index 0000000000..bac80d6871
--- /dev/null
+++ b/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
@@ -0,0 +1,78 @@
+//------------------------------------------------------------------------------
+//
+// RISC-V synchronization functions.
+//
+// Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+//------------------------------------------------------------------------------
+#include <Base.h>
+
+.data
+
+.text
+.align 3
+
+.global ASM_PFX(InternalSyncCompareExchange32)
+.global ASM_PFX(InternalSyncCompareExchange64)
+.global ASM_PFX(InternalSyncIncrement)
+.global ASM_PFX(InternalSyncDecrement)
+
+//
+// ompare and xchange a 32-bit value.
+//
+// @param a0 : Pointer to 32-bit value.
+// @param a1 : Compare value.
+// @param a2 : Exchange value.
+//
+ASM_PFX (InternalSyncCompareExchange32):
+    lr.w  a3, (a0)        // Load the value from a0 and make
+                          // the reservation of address.
+    bne   a3, a1, exit
+    sc.w  a3, a2, (a0)    // Write the value back to the address.
+    mv    a3, a1
+exit:
+    mv    a0, a3
+    ret
+
+.global ASM_PFX(InternalSyncCompareExchange64)
+
+//
+// Compare and xchange a 64-bit value.
+//
+// @param a0 : Pointer to 64-bit value.
+// @param a1 : Compare value.
+// @param a2 : Exchange value.
+//
+ASM_PFX (SyncCompareExchange64):
+    lr.d  a3, (a0)       // Load the value from a0 and make
+                         // the reservation of address.
+    bne   a3, a1, exit
+    sc.d  a3, a2, (a0)   // Write the value back to the address.
+    mv    a3, a1
+exit2:
+    mv    a0, a3
+    ret
+
+//
+// Performs an atomic increment of an 32-bit unsigned integer.
+//
+// @param a0 : Pointer to 32-bit value.
+//
+ASM_PFX (InternalSyncIncrement):
+    li  a1, 1
+    amoadd.w  a2, a1, (a0)
+    mv  a0, a2
+    ret
+
+//
+// Performs an atomic decrement of an 32-bit unsigned integer.
+//
+// @param a0 : Pointer to 32-bit value.
+//
+ASM_PFX (InternalSyncDecrement):
+    li  a1, -1
+    amoadd.w  a2, a1, (a0)
+    mv  a0, a2
+    ret
-- 
2.25.0


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [edk2-devel] [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code.
  2020-04-21  7:53 [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code Abner Chang
@ 2020-04-21  8:53 ` Zhiguang Liu
  2020-04-22  9:03 ` Zhiguang Liu
  1 sibling, 0 replies; 4+ messages in thread
From: Zhiguang Liu @ 2020-04-21  8:53 UTC (permalink / raw)
  To: devel@edk2.groups.io, abner.chang@hpe.com
  Cc: Gilbert Chen, Leif Lindholm, Kinney, Michael D, Gao, Liming

Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>

-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Abner Chang
Sent: Tuesday, April 21, 2020 3:53 PM
To: devel@edk2.groups.io
Cc: abner.chang@hpe.com; Gilbert Chen <gilbert.chen@hpe.com>; Leif Lindholm <leif.lindholm@linaro.org>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming <liming.gao@intel.com>
Subject: [edk2-devel] [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code.

Support RISC-V cache related functions.

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
---
 .../BaseSynchronizationLib.inf                |  5 ++
 .../RiscV64/Synchronization.S                 | 78 +++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S

diff --git a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
index 446bc19b63..83d5b8ed7c 100755
--- a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
+++ b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
@@ -3,6 +3,7 @@
 #

 #  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>

 #  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>

+#  Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>

 #

 #  SPDX-License-Identifier: BSD-2-Clause-Patent

 #

@@ -78,6 +79,10 @@
   AArch64/Synchronization.S     | GCC

   AArch64/Synchronization.asm   | MSFT

 

+[Sources.RISCV64]

+  Synchronization.c

+  RiscV64/Synchronization.S

+

 [Packages]

   MdePkg/MdePkg.dec

 

diff --git a/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S b/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
new file mode 100644
index 0000000000..bac80d6871
--- /dev/null
+++ b/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
@@ -0,0 +1,78 @@
+//------------------------------------------------------------------------------

+//

+// RISC-V synchronization functions.

+//

+// Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>

+//

+// SPDX-License-Identifier: BSD-2-Clause-Patent

+//

+//------------------------------------------------------------------------------

+#include <Base.h>

+

+.data

+

+.text

+.align 3

+

+.global ASM_PFX(InternalSyncCompareExchange32)

+.global ASM_PFX(InternalSyncCompareExchange64)

+.global ASM_PFX(InternalSyncIncrement)

+.global ASM_PFX(InternalSyncDecrement)

+

+//

+// ompare and xchange a 32-bit value.

+//

+// @param a0 : Pointer to 32-bit value.

+// @param a1 : Compare value.

+// @param a2 : Exchange value.

+//

+ASM_PFX (InternalSyncCompareExchange32):

+    lr.w  a3, (a0)        // Load the value from a0 and make

+                          // the reservation of address.

+    bne   a3, a1, exit

+    sc.w  a3, a2, (a0)    // Write the value back to the address.

+    mv    a3, a1

+exit:

+    mv    a0, a3

+    ret

+

+.global ASM_PFX(InternalSyncCompareExchange64)

+

+//

+// Compare and xchange a 64-bit value.

+//

+// @param a0 : Pointer to 64-bit value.

+// @param a1 : Compare value.

+// @param a2 : Exchange value.

+//

+ASM_PFX (SyncCompareExchange64):

+    lr.d  a3, (a0)       // Load the value from a0 and make

+                         // the reservation of address.

+    bne   a3, a1, exit

+    sc.d  a3, a2, (a0)   // Write the value back to the address.

+    mv    a3, a1

+exit2:

+    mv    a0, a3

+    ret

+

+//

+// Performs an atomic increment of an 32-bit unsigned integer.

+//

+// @param a0 : Pointer to 32-bit value.

+//

+ASM_PFX (InternalSyncIncrement):

+    li  a1, 1

+    amoadd.w  a2, a1, (a0)

+    mv  a0, a2

+    ret

+

+//

+// Performs an atomic decrement of an 32-bit unsigned integer.

+//

+// @param a0 : Pointer to 32-bit value.

+//

+ASM_PFX (InternalSyncDecrement):

+    li  a1, -1

+    amoadd.w  a2, a1, (a0)

+    mv  a0, a2

+    ret

-- 
2.25.0


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^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [edk2-devel] [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code.
  2020-04-21  7:53 [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code Abner Chang
  2020-04-21  8:53 ` [edk2-devel] " Zhiguang Liu
@ 2020-04-22  9:03 ` Zhiguang Liu
  1 sibling, 0 replies; 4+ messages in thread
From: Zhiguang Liu @ 2020-04-22  9:03 UTC (permalink / raw)
  To: devel@edk2.groups.io, abner.chang@hpe.com
  Cc: Gilbert Chen, Leif Lindholm, Kinney, Michael D, Gao, Liming

Reviewed-by: Zhiguang Liu <zhiguang.liu@intel.com>

-----Original Message-----
From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Abner Chang
Sent: Tuesday, April 21, 2020 3:53 PM
To: devel@edk2.groups.io
Cc: abner.chang@hpe.com; Gilbert Chen <gilbert.chen@hpe.com>; Leif Lindholm <leif.lindholm@linaro.org>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming <liming.gao@intel.com>
Subject: [edk2-devel] [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code.

Support RISC-V cache related functions.

Signed-off-by: Abner Chang <abner.chang@hpe.com>
Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Gilbert Chen <gilbert.chen@hpe.com>
---
 .../BaseSynchronizationLib.inf                |  5 ++
 .../RiscV64/Synchronization.S                 | 78 +++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S

diff --git a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
index 446bc19b63..83d5b8ed7c 100755
--- a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
+++ b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
@@ -3,6 +3,7 @@
 #

 #  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>

 #  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>

+#  Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>

 #

 #  SPDX-License-Identifier: BSD-2-Clause-Patent

 #

@@ -78,6 +79,10 @@
   AArch64/Synchronization.S     | GCC

   AArch64/Synchronization.asm   | MSFT

 

+[Sources.RISCV64]

+  Synchronization.c

+  RiscV64/Synchronization.S

+

 [Packages]

   MdePkg/MdePkg.dec

 

diff --git a/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S b/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
new file mode 100644
index 0000000000..bac80d6871
--- /dev/null
+++ b/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
@@ -0,0 +1,78 @@
+//------------------------------------------------------------------------------

+//

+// RISC-V synchronization functions.

+//

+// Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>

+//

+// SPDX-License-Identifier: BSD-2-Clause-Patent

+//

+//------------------------------------------------------------------------------

+#include <Base.h>

+

+.data

+

+.text

+.align 3

+

+.global ASM_PFX(InternalSyncCompareExchange32)

+.global ASM_PFX(InternalSyncCompareExchange64)

+.global ASM_PFX(InternalSyncIncrement)

+.global ASM_PFX(InternalSyncDecrement)

+

+//

+// ompare and xchange a 32-bit value.

+//

+// @param a0 : Pointer to 32-bit value.

+// @param a1 : Compare value.

+// @param a2 : Exchange value.

+//

+ASM_PFX (InternalSyncCompareExchange32):

+    lr.w  a3, (a0)        // Load the value from a0 and make

+                          // the reservation of address.

+    bne   a3, a1, exit

+    sc.w  a3, a2, (a0)    // Write the value back to the address.

+    mv    a3, a1

+exit:

+    mv    a0, a3

+    ret

+

+.global ASM_PFX(InternalSyncCompareExchange64)

+

+//

+// Compare and xchange a 64-bit value.

+//

+// @param a0 : Pointer to 64-bit value.

+// @param a1 : Compare value.

+// @param a2 : Exchange value.

+//

+ASM_PFX (SyncCompareExchange64):

+    lr.d  a3, (a0)       // Load the value from a0 and make

+                         // the reservation of address.

+    bne   a3, a1, exit

+    sc.d  a3, a2, (a0)   // Write the value back to the address.

+    mv    a3, a1

+exit2:

+    mv    a0, a3

+    ret

+

+//

+// Performs an atomic increment of an 32-bit unsigned integer.

+//

+// @param a0 : Pointer to 32-bit value.

+//

+ASM_PFX (InternalSyncIncrement):

+    li  a1, 1

+    amoadd.w  a2, a1, (a0)

+    mv  a0, a2

+    ret

+

+//

+// Performs an atomic decrement of an 32-bit unsigned integer.

+//

+// @param a0 : Pointer to 32-bit value.

+//

+ASM_PFX (InternalSyncDecrement):

+    li  a1, -1

+    amoadd.w  a2, a1, (a0)

+    mv  a0, a2

+    ret

-- 
2.25.0


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Groups.io Links: You receive all messages sent to this group.

View/Reply Online (#57720): https://edk2.groups.io/g/devel/message/57720
Mute This Topic: https://groups.io/mt/73168213/1779286
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^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [edk2-devel] [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code.
       [not found] <1607C88B87B941AC.8676@groups.io>
@ 2020-04-22  9:15 ` Liming Gao
  0 siblings, 0 replies; 4+ messages in thread
From: Liming Gao @ 2020-04-22  9:15 UTC (permalink / raw)
  To: devel@edk2.groups.io, Chang, Abner (HPS SW/FW Technologist)
  Cc: Chen, Gilbert, Leif Lindholm, Kinney, Michael D

Reviewed-by: Liming Gao <liming.gao@intel.com>

> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Chang, Abner (HPS SW/FW Technologist)
> Sent: Tuesday, April 21, 2020 3:53 PM
> To: devel@edk2.groups.io
> Cc: Chang, Abner (HPS SW/FW Technologist) <abner.chang@hpe.com>; Chen, Gilbert <gilbert.chen@hpe.com>; Leif Lindholm
> <leif.lindholm@linaro.org>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming <liming.gao@intel.com>
> Subject: [edk2-devel] [PATCH v2 8/9] MdePkg/BaseSynchronizationLib: RISC-V cache related code.
> 
> Support RISC-V cache related functions.
> 
> Signed-off-by: Abner Chang <abner.chang@hpe.com>
> Co-authored-by: Gilbert Chen <gilbert.chen@hpe.com>
> Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
> 
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Liming Gao <liming.gao@intel.com>
> Cc: Leif Lindholm <leif.lindholm@linaro.org>
> Cc: Gilbert Chen <gilbert.chen@hpe.com>
> ---
>  .../BaseSynchronizationLib.inf                |  5 ++
>  .../RiscV64/Synchronization.S                 | 78 +++++++++++++++++++
>  2 files changed, 83 insertions(+)
>  create mode 100644 MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
> 
> diff --git a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
> b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
> index 446bc19b63..83d5b8ed7c 100755
> --- a/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
> +++ b/MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf
> @@ -3,6 +3,7 @@
>  #
>  #  Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
>  #  Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
> +#  Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
>  #
>  #  SPDX-License-Identifier: BSD-2-Clause-Patent
>  #
> @@ -78,6 +79,10 @@
>    AArch64/Synchronization.S     | GCC
>    AArch64/Synchronization.asm   | MSFT
> 
> +[Sources.RISCV64]
> +  Synchronization.c
> +  RiscV64/Synchronization.S
> +
>  [Packages]
>    MdePkg/MdePkg.dec
> 
> diff --git a/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
> b/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
> new file mode 100644
> index 0000000000..bac80d6871
> --- /dev/null
> +++ b/MdePkg/Library/BaseSynchronizationLib/RiscV64/Synchronization.S
> @@ -0,0 +1,78 @@
> +//------------------------------------------------------------------------------
> +//
> +// RISC-V synchronization functions.
> +//
> +// Copyright (c) 2020, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
> +//
> +// SPDX-License-Identifier: BSD-2-Clause-Patent
> +//
> +//------------------------------------------------------------------------------
> +#include <Base.h>
> +
> +.data
> +
> +.text
> +.align 3
> +
> +.global ASM_PFX(InternalSyncCompareExchange32)
> +.global ASM_PFX(InternalSyncCompareExchange64)
> +.global ASM_PFX(InternalSyncIncrement)
> +.global ASM_PFX(InternalSyncDecrement)
> +
> +//
> +// ompare and xchange a 32-bit value.
> +//
> +// @param a0 : Pointer to 32-bit value.
> +// @param a1 : Compare value.
> +// @param a2 : Exchange value.
> +//
> +ASM_PFX (InternalSyncCompareExchange32):
> +    lr.w  a3, (a0)        // Load the value from a0 and make
> +                          // the reservation of address.
> +    bne   a3, a1, exit
> +    sc.w  a3, a2, (a0)    // Write the value back to the address.
> +    mv    a3, a1
> +exit:
> +    mv    a0, a3
> +    ret
> +
> +.global ASM_PFX(InternalSyncCompareExchange64)
> +
> +//
> +// Compare and xchange a 64-bit value.
> +//
> +// @param a0 : Pointer to 64-bit value.
> +// @param a1 : Compare value.
> +// @param a2 : Exchange value.
> +//
> +ASM_PFX (SyncCompareExchange64):
> +    lr.d  a3, (a0)       // Load the value from a0 and make
> +                         // the reservation of address.
> +    bne   a3, a1, exit
> +    sc.d  a3, a2, (a0)   // Write the value back to the address.
> +    mv    a3, a1
> +exit2:
> +    mv    a0, a3
> +    ret
> +
> +//
> +// Performs an atomic increment of an 32-bit unsigned integer.
> +//
> +// @param a0 : Pointer to 32-bit value.
> +//
> +ASM_PFX (InternalSyncIncrement):
> +    li  a1, 1
> +    amoadd.w  a2, a1, (a0)
> +    mv  a0, a2
> +    ret
> +
> +//
> +// Performs an atomic decrement of an 32-bit unsigned integer.
> +//
> +// @param a0 : Pointer to 32-bit value.
> +//
> +ASM_PFX (InternalSyncDecrement):
> +    li  a1, -1
> +    amoadd.w  a2, a1, (a0)
> +    mv  a0, a2
> +    ret
> --
> 2.25.0
> 
> 
> 


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2020-04-22  9:16 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2020-04-21  8:53 ` [edk2-devel] " Zhiguang Liu
2020-04-22  9:03 ` Zhiguang Liu
     [not found] <1607C88B87B941AC.8676@groups.io>
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