xref: /openbmc/linux/arch/mips/include/asm/tlb.h (revision c39f2d9db0fd81ea20bb5cce9b3f082ca63753e2)
1*b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */
2384740dcSRalf Baechle #ifndef __ASM_TLB_H
3384740dcSRalf Baechle #define __ASM_TLB_H
4384740dcSRalf Baechle 
510313980SPaul Burton #include <asm/cpu-features.h>
610313980SPaul Burton #include <asm/mipsregs.h>
710313980SPaul Burton 
8a6c09b9fSJames Hogan #define _UNIQUE_ENTRYHI(base, idx)					\
9a6c09b9fSJames Hogan 		(((base) + ((idx) << (PAGE_SHIFT + 1))) |		\
106e7f8b8eSLeonid Yegoshin 		 (cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
11a6c09b9fSJames Hogan #define UNIQUE_ENTRYHI(idx)		_UNIQUE_ENTRYHI(CKSEG0, idx)
12a6c09b9fSJames Hogan #define UNIQUE_GUEST_ENTRYHI(idx)	_UNIQUE_ENTRYHI(CKSEG1, idx)
13c01905eeSMarkos Chandras 
num_wired_entries(void)1410313980SPaul Burton static inline unsigned int num_wired_entries(void)
1510313980SPaul Burton {
1610313980SPaul Burton 	unsigned int wired = read_c0_wired();
1710313980SPaul Burton 
1810313980SPaul Burton 	if (cpu_has_mips_r6)
1910313980SPaul Burton 		wired &= MIPSR6_WIRED_WIRED;
2010313980SPaul Burton 
2110313980SPaul Burton 	return wired;
2210313980SPaul Burton }
2310313980SPaul Burton 
24384740dcSRalf Baechle #include <asm-generic/tlb.h>
25384740dcSRalf Baechle 
26384740dcSRalf Baechle #endif /* __ASM_TLB_H */
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