1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __MIPS_ASM_GINVT_H__
3 #define __MIPS_ASM_GINVT_H__
4
5 #include <asm/mipsregs.h>
6
7 enum ginvt_type {
8 GINVT_FULL,
9 GINVT_VA,
10 GINVT_MMID,
11 };
12
13 #ifdef TOOLCHAIN_SUPPORTS_GINV
14 # define _ASM_SET_GINV ".set ginv\n"
15 #else
16 _ASM_MACRO_1R1I(ginvt, rs, type,
17 _ASM_INSN_IF_MIPS(0x7c0000bd | (__rs << 21) | (\\type << 8))
18 _ASM_INSN32_IF_MM(0x0000717c | (__rs << 16) | (\\type << 9)));
19 # define _ASM_SET_GINV
20 #endif
21
ginvt(unsigned long addr,enum ginvt_type type)22 static __always_inline void ginvt(unsigned long addr, enum ginvt_type type)
23 {
24 asm volatile(
25 ".set push\n"
26 _ASM_SET_GINV
27 " ginvt %0, %1\n"
28 ".set pop"
29 : /* no outputs */
30 : "r"(addr), "i"(type)
31 : "memory");
32 }
33
ginvt_full(void)34 static inline void ginvt_full(void)
35 {
36 ginvt(0, GINVT_FULL);
37 }
38
ginvt_va(unsigned long addr)39 static inline void ginvt_va(unsigned long addr)
40 {
41 addr &= PAGE_MASK << 1;
42 ginvt(addr, GINVT_VA);
43 }
44
ginvt_mmid(void)45 static inline void ginvt_mmid(void)
46 {
47 ginvt(0, GINVT_MMID);
48 }
49
ginvt_va_mmid(unsigned long addr)50 static inline void ginvt_va_mmid(unsigned long addr)
51 {
52 addr &= PAGE_MASK << 1;
53 ginvt(addr, GINVT_VA | GINVT_MMID);
54 }
55
56 #endif /* __MIPS_ASM_GINVT_H__ */
57
