| Leonid Yegoshin | b0a668f | 2014-12-03 15:47:03 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (c) 2014 Imagination Technologies Ltd. |
| 7 | * Author: Markos Chandras <markos.chandras@imgtec.com> |
| 8 | */ |
| 9 | |
| 10 | #ifndef __ASM_MIPS_R2_TO_R6_EMUL_H |
| 11 | #define __ASM_MIPS_R2_TO_R6_EMUL_H |
| 12 | |
| 13 | struct mips_r2_emulator_stats { |
| 14 | u64 movs; |
| 15 | u64 hilo; |
| 16 | u64 muls; |
| 17 | u64 divs; |
| 18 | u64 dsps; |
| 19 | u64 bops; |
| 20 | u64 traps; |
| 21 | u64 fpus; |
| 22 | u64 loads; |
| 23 | u64 stores; |
| 24 | u64 llsc; |
| 25 | u64 dsemul; |
| 26 | }; |
| 27 | |
| 28 | struct mips_r2br_emulator_stats { |
| 29 | u64 jrs; |
| 30 | u64 bltzl; |
| 31 | u64 bgezl; |
| 32 | u64 bltzll; |
| 33 | u64 bgezll; |
| 34 | u64 bltzall; |
| 35 | u64 bgezall; |
| 36 | u64 bltzal; |
| 37 | u64 bgezal; |
| 38 | u64 beql; |
| 39 | u64 bnel; |
| 40 | u64 blezl; |
| 41 | u64 bgtzl; |
| 42 | }; |
| 43 | |
| 44 | #ifdef CONFIG_DEBUG_FS |
| 45 | |
| 46 | #define MIPS_R2_STATS(M) \ |
| 47 | do { \ |
| 48 | u32 nir; \ |
| 49 | int err; \ |
| 50 | \ |
| 51 | preempt_disable(); \ |
| 52 | __this_cpu_inc(mipsr2emustats.M); \ |
| 53 | err = __get_user(nir, (u32 __user *)regs->cp0_epc); \ |
| 54 | if (!err) { \ |
| 55 | if (nir == BREAK_MATH) \ |
| 56 | __this_cpu_inc(mipsr2bdemustats.M); \ |
| 57 | } \ |
| 58 | preempt_enable(); \ |
| 59 | } while (0) |
| 60 | |
| 61 | #define MIPS_R2BR_STATS(M) \ |
| 62 | do { \ |
| 63 | preempt_disable(); \ |
| 64 | __this_cpu_inc(mipsr2bremustats.M); \ |
| 65 | preempt_enable(); \ |
| 66 | } while (0) |
| 67 | |
| 68 | #else |
| 69 | |
| 70 | #define MIPS_R2_STATS(M) do { } while (0) |
| 71 | #define MIPS_R2BR_STATS(M) do { } while (0) |
| 72 | |
| 73 | #endif /* CONFIG_DEBUG_FS */ |
| 74 | |
| 75 | struct r2_decoder_table { |
| 76 | u32 mask; |
| 77 | u32 code; |
| 78 | int (*func)(struct pt_regs *regs, u32 inst); |
| 79 | }; |
| 80 | |
| 81 | |
| 82 | extern void do_trap_or_bp(struct pt_regs *regs, unsigned int code, |
| 83 | const char *str); |
| 84 | |
| 85 | #ifndef CONFIG_MIPSR2_TO_R6_EMULATOR |
| 86 | static int mipsr2_emulation; |
| Maciej W. Rozycki | 304acb7 | 2015-04-03 23:27:15 +0100 | [diff] [blame] | 87 | static inline int mipsr2_decoder(struct pt_regs *regs, u32 inst, |
| 88 | unsigned long *fcr31) |
| 89 | { |
| 90 | return 0; |
| 91 | }; |
| Leonid Yegoshin | b0a668f | 2014-12-03 15:47:03 +0000 | [diff] [blame] | 92 | #else |
| 93 | /* MIPS R2 Emulator ON/OFF */ |
| 94 | extern int mipsr2_emulation; |
| Maciej W. Rozycki | 304acb7 | 2015-04-03 23:27:15 +0100 | [diff] [blame] | 95 | extern int mipsr2_decoder(struct pt_regs *regs, u32 inst, |
| 96 | unsigned long *fcr31); |
| Leonid Yegoshin | b0a668f | 2014-12-03 15:47:03 +0000 | [diff] [blame] | 97 | #endif /* CONFIG_MIPSR2_TO_R6_EMULATOR */ |
| 98 | |
| 99 | #define NO_R6EMU (cpu_has_mips_r6 && !mipsr2_emulation) |
| 100 | |
| 101 | #endif /* __ASM_MIPS_R2_TO_R6_EMUL_H */ |