/* $NetBSD: frame.h,v 1.31 2019/02/18 01:12:23 thorpej Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: Utah $Hdr: frame.h 1.8 92/12/20$ * * @(#)frame.h 8.1 (Berkeley) 6/10/93 */ #ifndef _M68K_FRAME_H_ #define _M68K_FRAME_H_ #include /* common frame size */ #define CFSIZE (sizeof(struct frame) - sizeof(union F_u)) #define NFMTSIZE 9 #define FMT0 0x0 #define FMT1 0x1 #define FMT2 0x2 #define FMT3 0x3 #define FMT4 0x4 #define FMT7 0x7 #define FMT8 0x8 #define FMT9 0x9 #define FMTA 0xA #define FMTB 0xB /* frame specific info sizes */ #define FMT0SIZE 0 #define FMT1SIZE 0 #define FMT2SIZE sizeof(struct fmt2) #define FMT3SIZE sizeof(struct fmt3) #define FMT4SIZE sizeof(struct fmt4) #define FMT7SIZE sizeof(struct fmt7) #define FMT8SIZE sizeof(struct fmt8) #define FMT9SIZE sizeof(struct fmt9) #define FMTASIZE sizeof(struct fmtA) #define FMTBSIZE sizeof(struct fmtB) #define V_BUSERR 0x008 #define V_ADDRERR 0x00C #define V_TRAP1 0x084 /* 68010 SSW bits */ #define SSW1_RR 0x8000 #define SSW1_IF 0x2000 #define SSW1_DF 0x1000 #define SSW1_RM 0x0800 #define SSW1_HI 0x0400 #define SSW1_BX 0x0200 #define SSW1_RW 0x0100 #define SSW1_FCMASK 0x000F /* 68020/68030 SSW bits */ #define SSW_RC 0x2000 #define SSW_RB 0x1000 #define SSW_DF 0x0100 #define SSW_RM 0x0080 #define SSW_RW 0x0040 #define SSW_FCMASK 0x0007 /* 68040 SSW bits */ #define SSW4_CP 0x8000 #define SSW4_CU 0x4000 #define SSW4_CT 0x2000 #define SSW4_CM 0x1000 #define SSW4_MA 0x0800 #define SSW4_ATC 0x0400 #define SSW4_LK 0x0200 #define SSW4_RW 0x0100 #define SSW4_WBSV 0x0080 /* really in WB status, not SSW */ #define SSW4_SZMASK 0x0060 #define SSW4_SZLW 0x0000 #define SSW4_SZB 0x0020 #define SSW4_SZW 0x0040 #define SSW4_SZLN 0x0060 #define SSW4_TTMASK 0x0018 #define SSW4_TTNOR 0x0000 #define SSW4_TTM16 0x0008 #define SSW4_TMMASK 0x0007 #define SSW4_TMDCP 0x0000 #define SSW4_TMUD 0x0001 #define SSW4_TMUC 0x0002 #define SSW4_TMKD 0x0005 #define SSW4_TMKC 0x0006 /* 060 Fault Status Long Word (FPSP) */ #define FSLW_MA 0x08000000 #define FSLW_LK 0x02000000 #define FSLW_RW 0x01800000 #define FSLW_RW_R 0x01000000 #define FSLW_RW_W 0x00800000 #define FSLW_SIZE 0x00600000 /* * We better define the FSLW_SIZE values here, as the table given in the * MC68060UM/AD rev. 0/1 p. 8-23 is wrong, and was corrected in the errata * document. */ #define FSLW_SIZE_LONG 0x00000000 #define FSLW_SIZE_BYTE 0x00200000 #define FSLW_SIZE_WORD 0x00400000 #define FSLW_SIZE_MV16 0x00600000 #define FLSW_TT 0x00180000 #define FSLW_TM 0x00070000 #define FSLW_TM_SV 0x00040000 #define FSLW_IO 0x00008000 #define FSLW_PBE 0x00004000 #define FSLW_SBE 0x00002000 #define FSLW_PTA 0x00001000 #define FSLW_PTB 0x00000800 #define FSLW_IL 0x00000400 #define FSLW_PF 0x00000200 #define FSLW_SP 0x00000100 #define FSLW_WP 0x00000080 #define FSLW_TWE 0x00000040 #define FSLW_RE 0x00000020 #define FSLW_WE 0x00000010 #define FSLW_TTR 0x00000008 #define FSLW_BPE 0x00000004 #define FSLW_SEE 0x00000001 /* struct fpframe060 */ #define FPF6_FMT_NULL 0x00 #define FPF6_FMT_IDLE 0x60 #define FPF6_FMT_EXCP 0xe0 #define FPF6_V_BSUN 0 #define FPF6_V_INEX12 1 #define FPF6_V_DZ 2 #define FPF6_V_UNFL 3 #define FPF6_V_OPERR 4 #define FPF6_V_OVFL 5 #define FPF6_V_SNAN 6 #define FPF6_V_UNSUP 7 #if defined(_KERNEL) #include #if defined(COMPAT_16) /* * Stack frame layout when delivering a signal. */ struct sigframe_sigcontext { int sf_ra; /* handler return address */ int sf_signum; /* signal number for handler */ int sf_code; /* additional info for handler */ struct sigcontext *sf_scp; /* context pointer for handler */ struct sigcontext sf_sc; /* actual context */ struct sigstate sf_state; /* state of the hardware */ }; #endif struct sigframe_siginfo { int sf_ra; /* return address for handler */ int sf_signum; /* "signum" argument for handler */ siginfo_t *sf_sip; /* "sip" argument for handler */ ucontext_t *sf_ucp; /* "ucp" argument for handler */ siginfo_t sf_si; /* actual saved siginfo */ ucontext_t sf_uc; /* actual saved ucontext */ }; /* * Utility function to relocate the initial frame, make room to restore an * exception frame and reenter the syscall. */ void reenter_syscall(struct frame *, int) __attribute__((__noreturn__)); /* * Create an FPU "idle" frame for use by cpu_setmcontext() */ extern void m68k_make_fpu_idle_frame(void); extern struct fpframe m68k_cached_fpu_idle_frame; void *getframe(struct lwp *, int, int *); void buildcontext(struct lwp *, void *, void *); #ifdef COMPAT_16 void sendsig_sigcontext(const ksiginfo_t *, const sigset_t *); #endif #ifdef M68040 int m68040_writeback(struct frame *, int); #endif #if defined(__mc68010__) /* * Restartable atomic sequence-cased compare-and-swap for atomic_cas ops * and locking primitives. We defined this here because it manipulates a * "clockframe" as prepared by interrupt handlers. */ extern char _atomic_cas_ras_start; extern char _atomic_cas_ras_end; #define ATOMIC_CAS_CHECK(cfp) \ do { \ if (! CLKF_USERMODE(cfp) && \ (CLKF_PC(cfp) < (u_long)&_atomic_cas_ras_end && \ CLKF_PC(cfp) > (u_long)&_atomic_cas_ras_start)) { \ (cfp)->cf_pc = (u_long)&_atomic_cas_ras_start; \ } \ } while (/*CONSTCOND*/0) #else #define ATOMIC_CAS_CHECK(cfp) /* nothing */ #endif /* __mc68010__ */ #endif /* _KERNEL */ #endif /* _M68K_FRAME_H_ */