- /*
- * 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__
- typedef void (*e_vector)(void);
- extern e_vector vectors[];
- #endif
- #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_RESV1 (12)
- #define VEC_COPROC (13)
- #define VEC_FORMAT (14)
- #define VEC_UNINT (15)
- #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_UNIMPEA (60)
- #define VEC_UNIMPII (61)
- #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 */