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 # define _ASM_UNSET_GINV 16 #else 17 # define _ASM_SET_GINV \ 18 _ASM_MACRO_1R1I(ginvt, rs, type, \ 19 _ASM_INSN_IF_MIPS(0x7c0000bd | (__rs << 21) | (\\type << 8)) \ 20 _ASM_INSN32_IF_MM(0x0000717c | (__rs << 16) | (\\type << 9))) 21 # define _ASM_UNSET_GINV ".purgem ginvt\n" 22 #endif 23 24 static __always_inline void ginvt(unsigned long addr, enum ginvt_type type) 25 { 26 asm volatile( 27 ".set push\n" 28 _ASM_SET_GINV 29 " ginvt %0, %1\n" 30 _ASM_UNSET_GINV 31 ".set pop" 32 : /* no outputs */ 33 : "r"(addr), "i"(type) 34 : "memory"); 35 } 36 37 static inline void ginvt_full(void) 38 { 39 ginvt(0, GINVT_FULL); 40 } 41 42 static inline void ginvt_va(unsigned long addr) 43 { 44 addr &= PAGE_MASK << 1; 45 ginvt(addr, GINVT_VA); 46 } 47 48 static inline void ginvt_mmid(void) 49 { 50 ginvt(0, GINVT_MMID); 51 } 52 53 static inline void ginvt_va_mmid(unsigned long addr) 54 { 55 addr &= PAGE_MASK << 1; 56 ginvt(addr, GINVT_VA | GINVT_MMID); 57 } 58 59 #endif /* __MIPS_ASM_GINVT_H__ */ 60