1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef __MIPS_ASM_GINVT_H__
3*4882a593Smuzhiyun #define __MIPS_ASM_GINVT_H__
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <asm/mipsregs.h>
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun enum ginvt_type {
8*4882a593Smuzhiyun GINVT_FULL,
9*4882a593Smuzhiyun GINVT_VA,
10*4882a593Smuzhiyun GINVT_MMID,
11*4882a593Smuzhiyun };
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #ifdef TOOLCHAIN_SUPPORTS_GINV
14*4882a593Smuzhiyun # define _ASM_SET_GINV ".set ginv\n"
15*4882a593Smuzhiyun #else
16*4882a593Smuzhiyun _ASM_MACRO_1R1I(ginvt, rs, type,
17*4882a593Smuzhiyun _ASM_INSN_IF_MIPS(0x7c0000bd | (__rs << 21) | (\\type << 8))
18*4882a593Smuzhiyun _ASM_INSN32_IF_MM(0x0000717c | (__rs << 16) | (\\type << 9)));
19*4882a593Smuzhiyun # define _ASM_SET_GINV
20*4882a593Smuzhiyun #endif
21*4882a593Smuzhiyun
ginvt(unsigned long addr,enum ginvt_type type)22*4882a593Smuzhiyun static __always_inline void ginvt(unsigned long addr, enum ginvt_type type)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun asm volatile(
25*4882a593Smuzhiyun ".set push\n"
26*4882a593Smuzhiyun _ASM_SET_GINV
27*4882a593Smuzhiyun " ginvt %0, %1\n"
28*4882a593Smuzhiyun ".set pop"
29*4882a593Smuzhiyun : /* no outputs */
30*4882a593Smuzhiyun : "r"(addr), "i"(type)
31*4882a593Smuzhiyun : "memory");
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun
ginvt_full(void)34*4882a593Smuzhiyun static inline void ginvt_full(void)
35*4882a593Smuzhiyun {
36*4882a593Smuzhiyun ginvt(0, GINVT_FULL);
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun
ginvt_va(unsigned long addr)39*4882a593Smuzhiyun static inline void ginvt_va(unsigned long addr)
40*4882a593Smuzhiyun {
41*4882a593Smuzhiyun addr &= PAGE_MASK << 1;
42*4882a593Smuzhiyun ginvt(addr, GINVT_VA);
43*4882a593Smuzhiyun }
44*4882a593Smuzhiyun
ginvt_mmid(void)45*4882a593Smuzhiyun static inline void ginvt_mmid(void)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun ginvt(0, GINVT_MMID);
48*4882a593Smuzhiyun }
49*4882a593Smuzhiyun
ginvt_va_mmid(unsigned long addr)50*4882a593Smuzhiyun static inline void ginvt_va_mmid(unsigned long addr)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun addr &= PAGE_MASK << 1;
53*4882a593Smuzhiyun ginvt(addr, GINVT_VA | GINVT_MMID);
54*4882a593Smuzhiyun }
55*4882a593Smuzhiyun
56*4882a593Smuzhiyun #endif /* __MIPS_ASM_GINVT_H__ */
57