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| author | Gregory CLEMENT <gregory.clement@bootlin.com> | 2024-02-16 18:42:10 +0100 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2024-02-20 12:44:39 +0100 |
| commit | e40192dabaaae540578339d86b4e3fb105973710 (patch) | |
| tree | 236da179a8eb6ddd29e261725a7a6c9388c67e2b /arch/mips | |
| parent | 6d74e0fc0a34ef72365f88a249e351a353f8dc03 (diff) | |
| download | linux-e40192dabaaae540578339d86b4e3fb105973710.tar.gz | |
MIPS: spaces: Define a couple of handy macros
Define CKSEGX_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>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/addrspace.h | 5 | ||||
| -rw-r--r-- | arch/mips/include/asm/mach-generic/spaces.h | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/mips/include/asm/addrspace.h b/arch/mips/include/asm/addrspace.h index 59a48c60a065c..7e9ef01cb182b 100644 --- a/arch/mips/include/asm/addrspace.h +++ b/arch/mips/include/asm/addrspace.h @@ -48,6 +48,11 @@ #define KSEGX(a) ((_ACAST32_(a)) & _ACAST32_(0xe0000000)) /* + * Gives the size of each kernel segment + */ +#define CSEGX_SIZE 0x20000000 + +/* * Returns the physical address of a CKSEGx / XKPHYS address */ #define CPHYSADDR(a) ((_ACAST32_(a)) & 0x1fffffff) 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 */ /* |