[PATCH v6 01/15] MIPS: spaces: Define a couple of handy macros

[Gregory CLEMENT <gregory.clement@bootlin.com>]

Define KSEGX_SIZE to represent the size of each KSEG segment.

Introduce CKSEG0ADDR_OR_64BIT and CKSEG1ADDR_OR_64BIT to get an XPHYS
address in 64bits and CKSEG[01]ADDR() in 32 bits mode.

Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
---
 arch/mips/include/asm/addrspace.h           | 5 +++++
 arch/mips/include/asm/mach-generic/spaces.h | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/arch/mips/include/asm/addrspace.h b/arch/mips/include/asm/addrspace.h
index 59a48c60a065c..03a5e2c8b5dc9 100644
--- a/arch/mips/include/asm/addrspace.h
+++ b/arch/mips/include/asm/addrspace.h
@@ -47,6 +47,11 @@
  */
 #define KSEGX(a)		((_ACAST32_(a)) & _ACAST32_(0xe0000000))
 
+/*
+ * Gives the size of each kernel segment
+ */
+#define KSEGX_SIZE		0x20000000
+
 /*
  * Returns the physical address of a CKSEGx / XKPHYS address
  */
diff --git a/arch/mips/include/asm/mach-generic/spaces.h b/arch/mips/include/asm/mach-generic/spaces.h
index b247575c5e699..f8783d339fb0d 100644
--- a/arch/mips/include/asm/mach-generic/spaces.h
+++ b/arch/mips/include/asm/mach-generic/spaces.h
@@ -49,6 +49,8 @@
 #define HIGHMEM_START		_AC(0x20000000, UL)
 #endif
 
+#define CKSEG0ADDR_OR_64BIT(x)	CKSEG0ADDR(x)
+#define CKSEG1ADDR_OR_64BIT(x)	CKSEG1ADDR(x)
 #endif /* CONFIG_32BIT */
 
 #ifdef CONFIG_64BIT
@@ -82,6 +84,8 @@
 #define TO_CAC(x)		(CAC_BASE   | ((x) & TO_PHYS_MASK))
 #define TO_UNCAC(x)		(UNCAC_BASE | ((x) & TO_PHYS_MASK))
 
+#define CKSEG0ADDR_OR_64BIT(x)	TO_CAC(x)
+#define CKSEG1ADDR_OR_64BIT(x)	TO_UNCAC(x)
 #endif /* CONFIG_64BIT */
 
 /*
-- 
2.43.0