| Paul Burton | 5351138 | 2019-02-02 01:43:27 +0000 | [diff] [blame] | 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 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__ */ |