summaryrefslogtreecommitdiff
path: root/include/asm-m68k/traps.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-m68k/traps.h')
-rw-r--r--include/asm-m68k/traps.h265
1 files changed, 265 insertions, 0 deletions
diff --git a/include/asm-m68k/traps.h b/include/asm-m68k/traps.h
new file mode 100644
index 000000000000..475056191252
--- /dev/null
+++ b/include/asm-m68k/traps.h
@@ -0,0 +1,265 @@
+/*
+ * 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_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 */