Changeset 06f10ac in mainline for kernel/arch/arm64/include/arch/mm/km.h

Timestamp:

2021-08-22T19:08:44Z (3 years ago)

Author:

Martin Decky <martin@…>

Branches:

master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

c21cc26

Parents:

95b7d4df

Message:

Implement support for HiKey 960

Initial support for the 96Boards HiKey 960 board.

• The kernel identity mapping has been extended to 4 GiB. The initial bootstrap mapping maps 3 GiB as nornal memory and the next 1 GiB as device memory to support early UART debugging output.

• The istate_t has been padded in order to preserve the stack pointer alignment invariant.

The current implementation is limited to UP and UART input/output.

File:

• kernel/arch/arm64/include/arch/mm/km.h (modified) (2 diffs)

kernel/arch/arm64/include/arch/mm/km.h

@@ -41 +41 @@
 #include <typedefs.h>
 
-#define KM_ARM64_IDENTITY_START  UINT64_C(0xffffffff80000000)
-#define KM_ARM64_IDENTITY_SIZE   UINT64_C(0x0000000080000000)
+#define KM_ARM64_IDENTITY_START  UINT64_C(0xffffffff00000000)
+#define KM_ARM64_IDENTITY_SIZE   UINT64_C(0x0000000100000000)
 
 #define KM_ARM64_NON_IDENTITY_START  UINT64_C(0xffff000000000000)
-#define KM_ARM64_NON_IDENTITY_SIZE   UINT64_C(0x0000ffff80000000)
+#define KM_ARM64_NON_IDENTITY_SIZE   UINT64_C(0x0000ffff00000000)
 
 extern void km_identity_arch_init(void);
@@ -53 +53 @@
 #else /* __ASSEMBLER__ */
 
-#define KM_ARM64_IDENTITY_START  0xffffffff80000000
-#define KM_ARM64_IDENTITY_SIZE   0x0000000080000000
+#define KM_ARM64_IDENTITY_START  0xffffffff00000000
+#define KM_ARM64_IDENTITY_SIZE   0x0000000100000000
 
 #define KM_ARM64_NON_IDENTITY_START  0xffff000000000000
-#define KM_ARM64_NON_IDENTITY_SIZE   0x0000ffff80000000
+#define KM_ARM64_NON_IDENTITY_SIZE   0x0000ffff00000000
 
 #endif /* __ASSEMBLER__ */