| /* |
| * linux/include/asm/traps.h |
| * |
| * Copyright (C) 1993 Hamish Macdonald |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of this archive |
| * for more details. |
| */ |
| |
| #ifndef _M68K_TRAPS_H |
| #define _M68K_TRAPS_H |
| |
| #ifndef __ASSEMBLY__ |
| |
| #include <linux/linkage.h> |
| #include <asm/ptrace.h> |
| |
| typedef void (*e_vector)(void); |
| extern e_vector vectors[]; |
| extern e_vector *_ramvec; |
| |
| asmlinkage void auto_inthandler(void); |
| asmlinkage void user_inthandler(void); |
| asmlinkage void bad_inthandler(void); |
| |
| #endif |
| |
| #define VEC_RESETSP (0) |
| #define VEC_RESETPC (1) |
| #define VEC_BUSERR (2) |
| #define VEC_ADDRERR (3) |
| #define VEC_ILLEGAL (4) |
| #define VEC_ZERODIV (5) |
| #define VEC_CHK (6) |
| #define VEC_TRAP (7) |
| #define VEC_PRIV (8) |
| #define VEC_TRACE (9) |
| #define VEC_LINE10 (10) |
| #define VEC_LINE11 (11) |
| #define VEC_RESV12 (12) |
| #define VEC_COPROC (13) |
| #define VEC_FORMAT (14) |
| #define VEC_UNINT (15) |
| #define VEC_RESV16 (16) |
| #define VEC_RESV17 (17) |
| #define VEC_RESV18 (18) |
| #define VEC_RESV19 (19) |
| #define VEC_RESV20 (20) |
| #define VEC_RESV21 (21) |
| #define VEC_RESV22 (22) |
| #define VEC_RESV23 (23) |
| #define VEC_SPUR (24) |
| #define VEC_INT1 (25) |
| #define VEC_INT2 (26) |
| #define VEC_INT3 (27) |
| #define VEC_INT4 (28) |
| #define VEC_INT5 (29) |
| #define VEC_INT6 (30) |
| #define VEC_INT7 (31) |
| #define VEC_SYS (32) |
| #define VEC_TRAP1 (33) |
| #define VEC_TRAP2 (34) |
| #define VEC_TRAP3 (35) |
| #define VEC_TRAP4 (36) |
| #define VEC_TRAP5 (37) |
| #define VEC_TRAP6 (38) |
| #define VEC_TRAP7 (39) |
| #define VEC_TRAP8 (40) |
| #define VEC_TRAP9 (41) |
| #define VEC_TRAP10 (42) |
| #define VEC_TRAP11 (43) |
| #define VEC_TRAP12 (44) |
| #define VEC_TRAP13 (45) |
| #define VEC_TRAP14 (46) |
| #define VEC_TRAP15 (47) |
| #define VEC_FPBRUC (48) |
| #define VEC_FPIR (49) |
| #define VEC_FPDIVZ (50) |
| #define VEC_FPUNDER (51) |
| #define VEC_FPOE (52) |
| #define VEC_FPOVER (53) |
| #define VEC_FPNAN (54) |
| #define VEC_FPUNSUP (55) |
| #define VEC_MMUCFG (56) |
| #define VEC_MMUILL (57) |
| #define VEC_MMUACC (58) |
| #define VEC_RESV59 (59) |
| #define VEC_UNIMPEA (60) |
| #define VEC_UNIMPII (61) |
| #define VEC_RESV62 (62) |
| #define VEC_RESV63 (63) |
| #define VEC_USER (64) |
| |
| #define VECOFF(vec) ((vec)<<2) |
| |
| #ifndef __ASSEMBLY__ |
| |
| /* Status register bits */ |
| #define PS_T (0x8000) |
| #define PS_S (0x2000) |
| #define PS_M (0x1000) |
| #define PS_C (0x0001) |
| |
| /* bits for 68020/68030 special status word */ |
| |
| #define FC (0x8000) |
| #define FB (0x4000) |
| #define RC (0x2000) |
| #define RB (0x1000) |
| #define DF (0x0100) |
| #define RM (0x0080) |
| #define RW (0x0040) |
| #define SZ (0x0030) |
| #define DFC (0x0007) |
| |
| /* bits for 68030 MMU status register (mmusr,psr) */ |
| |
| #define MMU_B (0x8000) /* bus error */ |
| #define MMU_L (0x4000) /* limit violation */ |
| #define MMU_S (0x2000) /* supervisor violation */ |
| #define MMU_WP (0x0800) /* write-protected */ |
| #define MMU_I (0x0400) /* invalid descriptor */ |
| #define MMU_M (0x0200) /* ATC entry modified */ |
| #define MMU_T (0x0040) /* transparent translation */ |
| #define MMU_NUM (0x0007) /* number of levels traversed */ |
| |
| |
| /* bits for 68040 special status word */ |
| #define CP_040 (0x8000) |
| #define CU_040 (0x4000) |
| #define CT_040 (0x2000) |
| #define CM_040 (0x1000) |
| #define MA_040 (0x0800) |
| #define ATC_040 (0x0400) |
| #define LK_040 (0x0200) |
| #define RW_040 (0x0100) |
| #define SIZ_040 (0x0060) |
| #define TT_040 (0x0018) |
| #define TM_040 (0x0007) |
| |
| /* bits for 68040 write back status word */ |
| #define WBV_040 (0x80) |
| #define WBSIZ_040 (0x60) |
| #define WBBYT_040 (0x20) |
| #define WBWRD_040 (0x40) |
| #define WBLNG_040 (0x00) |
| #define WBTT_040 (0x18) |
| #define WBTM_040 (0x07) |
| |
| /* bus access size codes */ |
| #define BA_SIZE_BYTE (0x20) |
| #define BA_SIZE_WORD (0x40) |
| #define BA_SIZE_LONG (0x00) |
| #define BA_SIZE_LINE (0x60) |
| |
| /* bus access transfer type codes */ |
| #define BA_TT_MOVE16 (0x08) |
| |
| /* bits for 68040 MMU status register (mmusr) */ |
| #define MMU_B_040 (0x0800) |
| #define MMU_G_040 (0x0400) |
| #define MMU_S_040 (0x0080) |
| #define MMU_CM_040 (0x0060) |
| #define MMU_M_040 (0x0010) |
| #define MMU_WP_040 (0x0004) |
| #define MMU_T_040 (0x0002) |
| #define MMU_R_040 (0x0001) |
| |
| /* bits in the 68060 fault status long word (FSLW) */ |
| #define MMU060_MA (0x08000000) /* misaligned */ |
| #define MMU060_LK (0x02000000) /* locked transfer */ |
| #define MMU060_RW (0x01800000) /* read/write */ |
| # define MMU060_RW_W (0x00800000) /* write */ |
| # define MMU060_RW_R (0x01000000) /* read */ |
| # define MMU060_RW_RMW (0x01800000) /* read/modify/write */ |
| # define MMU060_W (0x00800000) /* general write, includes rmw */ |
| #define MMU060_SIZ (0x00600000) /* transfer size */ |
| #define MMU060_TT (0x00180000) /* transfer type (TT) bits */ |
| #define MMU060_TM (0x00070000) /* transfer modifier (TM) bits */ |
| #define MMU060_IO (0x00008000) /* instruction or operand */ |
| #define MMU060_PBE (0x00004000) /* push buffer bus error */ |
| #define MMU060_SBE (0x00002000) /* store buffer bus error */ |
| #define MMU060_PTA (0x00001000) /* pointer A fault */ |
| #define MMU060_PTB (0x00000800) /* pointer B fault */ |
| #define MMU060_IL (0x00000400) /* double indirect descr fault */ |
| #define MMU060_PF (0x00000200) /* page fault (invalid descr) */ |
| #define MMU060_SP (0x00000100) /* supervisor protection */ |
| #define MMU060_WP (0x00000080) /* write protection */ |
| #define MMU060_TWE (0x00000040) /* bus error on table search */ |
| #define MMU060_RE (0x00000020) /* bus error on read */ |
| #define MMU060_WE (0x00000010) /* bus error on write */ |
| #define MMU060_TTR (0x00000008) /* error caused by TTR translation */ |
| #define MMU060_BPE (0x00000004) /* branch prediction error */ |
| #define MMU060_SEE (0x00000001) /* software emulated error */ |
| |
| /* cases of missing or invalid descriptors */ |
| #define MMU060_DESC_ERR (MMU060_PTA | MMU060_PTB | \ |
| MMU060_IL | MMU060_PF) |
| /* bits that indicate real errors */ |
| #define MMU060_ERR_BITS (MMU060_PBE | MMU060_SBE | MMU060_DESC_ERR | MMU060_SP | \ |
| MMU060_WP | MMU060_TWE | MMU060_RE | MMU060_WE) |
| |
| /* structure for stack frames */ |
| |
| struct frame { |
| struct pt_regs ptregs; |
| union { |
| struct { |
| unsigned long iaddr; /* instruction address */ |
| } fmt2; |
| struct { |
| unsigned long effaddr; /* effective address */ |
| } fmt3; |
| struct { |
| unsigned long effaddr; /* effective address */ |
| unsigned long pc; /* pc of faulted instr */ |
| } fmt4; |
| struct { |
| unsigned long effaddr; /* effective address */ |
| unsigned short ssw; /* special status word */ |
| unsigned short wb3s; /* write back 3 status */ |
| unsigned short wb2s; /* write back 2 status */ |
| unsigned short wb1s; /* write back 1 status */ |
| unsigned long faddr; /* fault address */ |
| unsigned long wb3a; /* write back 3 address */ |
| unsigned long wb3d; /* write back 3 data */ |
| unsigned long wb2a; /* write back 2 address */ |
| unsigned long wb2d; /* write back 2 data */ |
| unsigned long wb1a; /* write back 1 address */ |
| unsigned long wb1dpd0; /* write back 1 data/push data 0*/ |
| unsigned long pd1; /* push data 1*/ |
| unsigned long pd2; /* push data 2*/ |
| unsigned long pd3; /* push data 3*/ |
| } fmt7; |
| struct { |
| unsigned long iaddr; /* instruction address */ |
| unsigned short int1[4]; /* internal registers */ |
| } fmt9; |
| struct { |
| unsigned short int1; |
| unsigned short ssw; /* special status word */ |
| unsigned short isc; /* instruction stage c */ |
| unsigned short isb; /* instruction stage b */ |
| unsigned long daddr; /* data cycle fault address */ |
| unsigned short int2[2]; |
| unsigned long dobuf; /* data cycle output buffer */ |
| unsigned short int3[2]; |
| } fmta; |
| struct { |
| unsigned short int1; |
| unsigned short ssw; /* special status word */ |
| unsigned short isc; /* instruction stage c */ |
| unsigned short isb; /* instruction stage b */ |
| unsigned long daddr; /* data cycle fault address */ |
| unsigned short int2[2]; |
| unsigned long dobuf; /* data cycle output buffer */ |
| unsigned short int3[4]; |
| unsigned long baddr; /* stage B address */ |
| unsigned short int4[2]; |
| unsigned long dibuf; /* data cycle input buffer */ |
| unsigned short int5[3]; |
| unsigned ver : 4; /* stack frame version # */ |
| unsigned int6:12; |
| unsigned short int7[18]; |
| } fmtb; |
| } un; |
| }; |
| |
| #endif /* __ASSEMBLY__ */ |
| |
| #endif /* _M68K_TRAPS_H */ |