Commit e40192da authored Feb 16, 2024 by Gregory CLEMENT Committed by Thomas Bogendoerfer Feb 20, 2024

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>

parent 6d74e0fc

arch/mips/include/asm/addrspace.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -47,6 +47,11 @@
		*/
		#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
		*/

arch/mips/include/asm/mach-generic/spaces.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -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 */

		/*