diff options
Diffstat (limited to 'MdePkg/Library/BaseIoLibIntrinsic/AArch64/ArmVirtMmio.S')
| -rw-r--r-- | MdePkg/Library/BaseIoLibIntrinsic/AArch64/ArmVirtMmio.S | 296 |
1 files changed, 148 insertions, 148 deletions
diff --git a/MdePkg/Library/BaseIoLibIntrinsic/AArch64/ArmVirtMmio.S b/MdePkg/Library/BaseIoLibIntrinsic/AArch64/ArmVirtMmio.S index 85f5932427..bfdcb596f3 100644 --- a/MdePkg/Library/BaseIoLibIntrinsic/AArch64/ArmVirtMmio.S +++ b/MdePkg/Library/BaseIoLibIntrinsic/AArch64/ArmVirtMmio.S @@ -1,148 +1,148 @@ -# -# Copyright (c) 2014-2018, Linaro Limited. All rights reserved. -# -# This program and the accompanying materials are licensed and made available -# under the terms and conditions of the BSD License which accompanies this -# distribution. The full text of the license may be found at -# http://opensource.org/licenses/bsd-license.php -# -# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, -# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. -# -# - -.text -.align 3 - -GCC_ASM_EXPORT(MmioRead8Internal) -GCC_ASM_EXPORT(MmioWrite8Internal) -GCC_ASM_EXPORT(MmioRead16Internal) -GCC_ASM_EXPORT(MmioWrite16Internal) -GCC_ASM_EXPORT(MmioRead32Internal) -GCC_ASM_EXPORT(MmioWrite32Internal) -GCC_ASM_EXPORT(MmioRead64Internal) -GCC_ASM_EXPORT(MmioWrite64Internal) - -// -// Reads an 8-bit MMIO register. -// -// Reads the 8-bit MMIO register specified by Address. The 8-bit read value is -// returned. This function must guarantee that all MMIO read and write -// operations are serialized. -// -// @param Address The MMIO register to read. -// -// @return The value read. -// -ASM_PFX(MmioRead8Internal): - ldrb w0, [x0] - dmb ld - ret - -// -// Writes an 8-bit MMIO register. -// -// Writes the 8-bit MMIO register specified by Address with the value specified -// by Value and returns Value. This function must guarantee that all MMIO read -// and write operations are serialized. -// -// @param Address The MMIO register to write. -// @param Value The value to write to the MMIO register. -// -ASM_PFX(MmioWrite8Internal): - dmb st - strb w1, [x0] - ret - -// -// Reads a 16-bit MMIO register. -// -// Reads the 16-bit MMIO register specified by Address. The 16-bit read value is -// returned. This function must guarantee that all MMIO read and write -// operations are serialized. -// -// @param Address The MMIO register to read. -// -// @return The value read. -// -ASM_PFX(MmioRead16Internal): - ldrh w0, [x0] - dmb ld - ret - -// -// Writes a 16-bit MMIO register. -// -// Writes the 16-bit MMIO register specified by Address with the value specified -// by Value and returns Value. This function must guarantee that all MMIO read -// and write operations are serialized. -// -// @param Address The MMIO register to write. -// @param Value The value to write to the MMIO register. -// -ASM_PFX(MmioWrite16Internal): - dmb st - strh w1, [x0] - ret - -// -// Reads a 32-bit MMIO register. -// -// Reads the 32-bit MMIO register specified by Address. The 32-bit read value is -// returned. This function must guarantee that all MMIO read and write -// operations are serialized. -// -// @param Address The MMIO register to read. -// -// @return The value read. -// -ASM_PFX(MmioRead32Internal): - ldr w0, [x0] - dmb ld - ret - -// -// Writes a 32-bit MMIO register. -// -// Writes the 32-bit MMIO register specified by Address with the value specified -// by Value and returns Value. This function must guarantee that all MMIO read -// and write operations are serialized. -// -// @param Address The MMIO register to write. -// @param Value The value to write to the MMIO register. -// -ASM_PFX(MmioWrite32Internal): - dmb st - str w1, [x0] - ret - -// -// Reads a 64-bit MMIO register. -// -// Reads the 64-bit MMIO register specified by Address. The 64-bit read value is -// returned. This function must guarantee that all MMIO read and write -// operations are serialized. -// -// @param Address The MMIO register to read. -// -// @return The value read. -// -ASM_PFX(MmioRead64Internal): - ldr x0, [x0] - dmb ld - ret - -// -// Writes a 64-bit MMIO register. -// -// Writes the 64-bit MMIO register specified by Address with the value specified -// by Value and returns Value. This function must guarantee that all MMIO read -// and write operations are serialized. -// -// @param Address The MMIO register to write. -// @param Value The value to write to the MMIO register. -// -ASM_PFX(MmioWrite64Internal): - dmb st - str x1, [x0] - ret +#
+# Copyright (c) 2014-2018, Linaro Limited. All rights reserved.
+#
+# This program and the accompanying materials are licensed and made available
+# under the terms and conditions of the BSD License which accompanies this
+# distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+
+.text
+.align 3
+
+GCC_ASM_EXPORT(MmioRead8Internal)
+GCC_ASM_EXPORT(MmioWrite8Internal)
+GCC_ASM_EXPORT(MmioRead16Internal)
+GCC_ASM_EXPORT(MmioWrite16Internal)
+GCC_ASM_EXPORT(MmioRead32Internal)
+GCC_ASM_EXPORT(MmioWrite32Internal)
+GCC_ASM_EXPORT(MmioRead64Internal)
+GCC_ASM_EXPORT(MmioWrite64Internal)
+
+//
+// Reads an 8-bit MMIO register.
+//
+// Reads the 8-bit MMIO register specified by Address. The 8-bit read value is
+// returned. This function must guarantee that all MMIO read and write
+// operations are serialized.
+//
+// @param Address The MMIO register to read.
+//
+// @return The value read.
+//
+ASM_PFX(MmioRead8Internal):
+ ldrb w0, [x0]
+ dmb ld
+ ret
+
+//
+// Writes an 8-bit MMIO register.
+//
+// Writes the 8-bit MMIO register specified by Address with the value specified
+// by Value and returns Value. This function must guarantee that all MMIO read
+// and write operations are serialized.
+//
+// @param Address The MMIO register to write.
+// @param Value The value to write to the MMIO register.
+//
+ASM_PFX(MmioWrite8Internal):
+ dmb st
+ strb w1, [x0]
+ ret
+
+//
+// Reads a 16-bit MMIO register.
+//
+// Reads the 16-bit MMIO register specified by Address. The 16-bit read value is
+// returned. This function must guarantee that all MMIO read and write
+// operations are serialized.
+//
+// @param Address The MMIO register to read.
+//
+// @return The value read.
+//
+ASM_PFX(MmioRead16Internal):
+ ldrh w0, [x0]
+ dmb ld
+ ret
+
+//
+// Writes a 16-bit MMIO register.
+//
+// Writes the 16-bit MMIO register specified by Address with the value specified
+// by Value and returns Value. This function must guarantee that all MMIO read
+// and write operations are serialized.
+//
+// @param Address The MMIO register to write.
+// @param Value The value to write to the MMIO register.
+//
+ASM_PFX(MmioWrite16Internal):
+ dmb st
+ strh w1, [x0]
+ ret
+
+//
+// Reads a 32-bit MMIO register.
+//
+// Reads the 32-bit MMIO register specified by Address. The 32-bit read value is
+// returned. This function must guarantee that all MMIO read and write
+// operations are serialized.
+//
+// @param Address The MMIO register to read.
+//
+// @return The value read.
+//
+ASM_PFX(MmioRead32Internal):
+ ldr w0, [x0]
+ dmb ld
+ ret
+
+//
+// Writes a 32-bit MMIO register.
+//
+// Writes the 32-bit MMIO register specified by Address with the value specified
+// by Value and returns Value. This function must guarantee that all MMIO read
+// and write operations are serialized.
+//
+// @param Address The MMIO register to write.
+// @param Value The value to write to the MMIO register.
+//
+ASM_PFX(MmioWrite32Internal):
+ dmb st
+ str w1, [x0]
+ ret
+
+//
+// Reads a 64-bit MMIO register.
+//
+// Reads the 64-bit MMIO register specified by Address. The 64-bit read value is
+// returned. This function must guarantee that all MMIO read and write
+// operations are serialized.
+//
+// @param Address The MMIO register to read.
+//
+// @return The value read.
+//
+ASM_PFX(MmioRead64Internal):
+ ldr x0, [x0]
+ dmb ld
+ ret
+
+//
+// Writes a 64-bit MMIO register.
+//
+// Writes the 64-bit MMIO register specified by Address with the value specified
+// by Value and returns Value. This function must guarantee that all MMIO read
+// and write operations are serialized.
+//
+// @param Address The MMIO register to write.
+// @param Value The value to write to the MMIO register.
+//
+ASM_PFX(MmioWrite64Internal):
+ dmb st
+ str x1, [x0]
+ ret
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