projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This program is free software; you can distribute it and/or modify it | |
| 3 | * under the terms of the GNU General Public License (Version 2) as | |
| 4 | * published by the Free Software Foundation. | |
| 5 | * | |
| 6 | * This program is distributed in the hope it will be useful, but WITHOUT | |
| 7 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 8 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 9 | * for more details. | |
| 10 | * | |
| 11 | * You should have received a copy of the GNU General Public License along | |
| 12 | * with this program; if not, write to the Free Software Foundation, Inc., | |
| 13 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
| 14 | * | |
| eae89076 AN |
15 | * Further private data for which no space exists in mips_fpu_struct. |
| 16 | * This should be subsumed into the mips_fpu_struct structure as | |
| 1da177e4 LT |
17 | * defined in processor.h as soon as the absurd wired absolute assembler |
| 18 | * offsets become dynamic at compile time. | |
| 19 | * | |
| 20 | * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com | |
| 21 | * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. | |
| 22 | */ | |
| 23 | #ifndef _ASM_FPU_EMULATOR_H | |
| 24 | #define _ASM_FPU_EMULATOR_H | |
| 25 | ||
| ba3049ed RB |
26 | #include <asm/break.h> |
| 27 | #include <asm/inst.h> | |
| b6ee75ed DD |
28 | #include <asm/local.h> |
| 29 | ||
| 30 | #ifdef CONFIG_DEBUG_FS | |
| ba3049ed | 31 | |
| 4a99d1e2 | 32 | struct mips_fpu_emulator_stats { |
| b6ee75ed DD |
33 | local_t emulated; |
| 34 | local_t loads; | |
| 35 | local_t stores; | |
| 36 | local_t cp1ops; | |
| 37 | local_t cp1xops; | |
| 38 | local_t errors; | |
| 1da177e4 LT |
39 | }; |
| 40 | ||
| b6ee75ed DD |
41 | DECLARE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats); |
| 42 | ||
| 43 | #define MIPS_FPU_EMU_INC_STATS(M) \ | |
| c948aca4 RB |
44 | do { \ |
| 45 | preempt_disable(); \ | |
| 46 | __local_inc(&__get_cpu_var(fpuemustats).M); \ | |
| 47 | preempt_enable(); \ | |
| 48 | } while (0) | |
| b6ee75ed DD |
49 | |
| 50 | #else | |
| 51 | #define MIPS_FPU_EMU_INC_STATS(M) do { } while (0) | |
| 52 | #endif /* CONFIG_DEBUG_FS */ | |
| 0bd5d2e9 | 53 | |
| ba3049ed RB |
54 | extern int mips_dsemul(struct pt_regs *regs, mips_instruction ir, |
| 55 | unsigned long cpc); | |
| 56 | extern int do_dsemulret(struct pt_regs *xcp); | |
| 57 | ||
| 58 | /* | |
| 59 | * Instruction inserted following the badinst to further tag the sequence | |
| 60 | */ | |
| 61 | #define BD_COOKIE 0x0000bd36 /* tne $0, $0 with baggage */ | |
| 62 | ||
| 63 | /* | |
| 64 | * Break instruction with special math emu break code set | |
| 65 | */ | |
| 66 | #define BREAK_MATH (0x0000000d | (BRK_MEMU << 16)) | |
| 67 | ||
| 1da177e4 | 68 | #endif /* _ASM_FPU_EMULATOR_H */ |