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 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 34 static inline void ginvt_full(void) 35 { 36 ginvt(0, GINVT_FULL); 37 } 38 39 static inline void ginvt_va(unsigned long addr) 40 { 41 addr &= PAGE_MASK << 1; 42 ginvt(addr, GINVT_VA); 43 } 44 45 static inline void ginvt_mmid(void) 46 { 47 ginvt(0, GINVT_MMID); 48 } 49 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