diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibV7Support.asm | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibV7Support.asm')
| -rw-r--r-- | roms/edk2/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibV7Support.asm | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/roms/edk2/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibV7Support.asm b/roms/edk2/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibV7Support.asm new file mode 100644 index 000000000..a65e95db5 --- /dev/null +++ b/roms/edk2/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibV7Support.asm @@ -0,0 +1,26 @@ +//------------------------------------------------------------------------------
+//
+// Copyright (c) 2016, Linaro Limited. All rights reserved.
+//
+// SPDX-License-Identifier: BSD-2-Clause-Patent
+//
+//------------------------------------------------------------------------------
+
+
+
+ INCLUDE AsmMacroExport.inc
+
+
+//------------------------------------------------------------------------------
+
+ RVCT_ASM_EXPORT ArmHasMpExtensions
+ mrc p15,0,R0,c0,c0,5
+ // Get Multiprocessing extension (bit31)
+ lsr R0, R0, #31
+ bx LR
+
+ RVCT_ASM_EXPORT ArmReadIdMmfr0
+ mrc p15, 0, r0, c0, c1, 4 ; Read ID_MMFR0 Register
+ bx lr
+
+ END
|