xref: /OK3568_Linux_fs/kernel/arch/mips/include/asm/tlb.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __ASM_TLB_H
3*4882a593Smuzhiyun #define __ASM_TLB_H
4*4882a593Smuzhiyun 
5*4882a593Smuzhiyun #include <asm/cpu-features.h>
6*4882a593Smuzhiyun #include <asm/mipsregs.h>
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun #define _UNIQUE_ENTRYHI(base, idx)					\
9*4882a593Smuzhiyun 		(((base) + ((idx) << (PAGE_SHIFT + 1))) |		\
10*4882a593Smuzhiyun 		 (cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
11*4882a593Smuzhiyun #define UNIQUE_ENTRYHI(idx)		_UNIQUE_ENTRYHI(CKSEG0, idx)
12*4882a593Smuzhiyun #define UNIQUE_GUEST_ENTRYHI(idx)	_UNIQUE_ENTRYHI(CKSEG1, idx)
13*4882a593Smuzhiyun 
num_wired_entries(void)14*4882a593Smuzhiyun static inline unsigned int num_wired_entries(void)
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun 	unsigned int wired = read_c0_wired();
17*4882a593Smuzhiyun 
18*4882a593Smuzhiyun 	if (cpu_has_mips_r6)
19*4882a593Smuzhiyun 		wired &= MIPSR6_WIRED_WIRED;
20*4882a593Smuzhiyun 
21*4882a593Smuzhiyun 	return wired;
22*4882a593Smuzhiyun }
23*4882a593Smuzhiyun 
24*4882a593Smuzhiyun #include <asm-generic/tlb.h>
25*4882a593Smuzhiyun 
26*4882a593Smuzhiyun #endif /* __ASM_TLB_H */
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