/* $OpenBSD: uba_sbi.c,v 1.2 2002/03/14 01:26:48 millert Exp $ */ /* $NetBSD: uba_sbi.c,v 1.1 1999/06/21 16:23:01 ragge Exp $ */ /* * Copyright (c) 1996 Jonathan Stone. * Copyright (c) 1994, 1996 Ludd, University of Lule}, Sweden. * Copyright (c) 1982, 1986 The Regents of the University of California. * All rights reserved. * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. * * @(#)uba.c 7.10 (Berkeley) 12/16/90 * @(#)autoconf.c 7.20 (Berkeley) 5/9/91 */ #include #include #include #include #define _VAX_BUS_DMA_PRIVATE #include #include #include #include #include #include #include #include /* Some SBI-specific defines */ #define UBASIZE (UBAPAGES * VAX_NBPG) #define UMEMA8600(i) (0x20100000+(i)*0x40000) #define UMEMB8600(i) (0x22100000+(i)*0x40000) /* * Some status registers. */ #define UBACNFGR_UBIC 0x00010000 /* unibus init complete */ #define UBACNFGR_BITS \ "\40\40PARFLT\37WSQFLT\36URDFLT\35ISQFLT\34MXTFLT\33XMTFLT\30ADPDN\27ADPUP\23UBINIT\22UBPDN\21UBIC" #define UBACR_IFS 0x00000040 /* interrupt field switch */ #define UBACR_BRIE 0x00000020 /* BR interrupt enable */ #define UBACR_USEFIE 0x00000010 /* UNIBUS to SBI error field IE */ #define UBACR_SUEFIE 0x00000008 /* SBI to UNIBUS error field IE */ #define UBACR_ADINIT 0x00000001 /* adapter init */ #define UBADPR_BNE 0x80000000 /* buffer not empty - purge */ #define UBABRRVR_DIV 0x0000ffff /* device interrupt vector field */ #define UBASR_BITS \ "\20\13RDTO\12RDS\11CRD\10CXTER\7CXTMO\6DPPE\5IVMR\4MRPF\3LEB\2UBSTO\1UBSSYNTO" char ubasr_bits[] = UBASR_BITS; /* * The DW780 are directly connected to the SBI on 11/780 and 8600. */ static int dw780_match(struct device *, struct cfdata *, void *); static void dw780_attach(struct device *, struct device *, void *); static void dw780_init(struct uba_softc*); static void dw780_beforescan(struct uba_softc *); static void dw780_afterscan(struct uba_softc *); static int dw780_errchk(struct uba_softc *); static void uba_dw780int(int); static void ubaerror(struct uba_softc *, int *, int *); #ifdef notyet static void dw780_purge(struct uba_softc *, int); #endif struct cfattach uba_sbi_ca = { sizeof(struct uba_vsoftc), dw780_match, dw780_attach }; extern struct vax_bus_space vax_mem_bus_space; volatile int svec; int dw780_match(parent, cf, aux) struct device *parent; struct cfdata *cf; void *aux; { struct sbi_attach_args *sa = (struct sbi_attach_args *)aux; if ((cf->cf_loc[0] != sa->nexnum) && (cf->cf_loc[0] > -1 )) return 0; /* * The uba type is actually only telling where the uba * space is in nexus space. */ if ((sa->type & ~3) != NEX_UBA0) return 0; return 1; } void dw780_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct uba_vsoftc *sc = (void *)self; struct sbi_attach_args *sa = aux; int ubaddr = sa->type & 3; int i; printf(": DW780\n"); /* * Fill in bus specific data. */ sc->uv_sc.uh_ubainit = dw780_init; #ifdef notyet sc->uv_sc.uh_ubapurge = dw780_purge; #endif sc->uv_sc.uh_beforescan = dw780_beforescan; sc->uv_sc.uh_afterscan = dw780_afterscan; sc->uv_sc.uh_errchk = dw780_errchk; sc->uv_sc.uh_iot = &vax_mem_bus_space; sc->uv_sc.uh_dmat = &sc->uv_dmat; sc->uv_uba = (void *)sa->nexaddr; sc->uh_ibase = VAX_NBPG + ubaddr * VAX_NBPG; /* * Set up dispatch vectors for DW780. */ for (i = 0; i < 4; i++) scb_vecalloc(256 + i * 64 + sa->nexnum * 4, uba_dw780int, sc->uv_sc.uh_dev.dv_unit, SCB_ISTACK); /* * Fill in variables used by the sgmap system. */ sc->uv_size = UBASIZE; /* Size in bytes of Qbus space */ sc->uv_addr = (paddr_t)sc->uv_uba->uba_map; uba_dma_init(sc); uba_attach(&sc->uv_sc, (parent->dv_unit ? UMEMB8600(ubaddr) : UMEMA8600(ubaddr)) + (UBAPAGES * VAX_NBPG)); } void dw780_beforescan(sc) struct uba_softc *sc; { struct uba_vsoftc *vc = (void *)sc; volatile int *hej = &vc->uv_uba->uba_sr; *hej = *hej; vc->uv_uba->uba_cr = UBACR_IFS|UBACR_BRIE; } void dw780_afterscan(sc) struct uba_softc *sc; { struct uba_vsoftc *vc = (void *)sc; vc->uv_uba->uba_cr = UBACR_IFS | UBACR_BRIE | UBACR_USEFIE | UBACR_SUEFIE | (vc->uv_uba->uba_cr & 0x7c000000); } int dw780_errchk(sc) struct uba_softc *sc; { struct uba_vsoftc *vc = (void *)sc; volatile int *hej = &vc->uv_uba->uba_sr; if (*hej) { *hej = *hej; return 1; } return 0; } void uba_dw780int(uba) int uba; { int br, vec, arg; struct uba_vsoftc *vc = uba_cd.cd_devs[uba]; struct uba_regs *ur = vc->uv_uba; void (*func)(int); br = mfpr(PR_IPL); vec = ur->uba_brrvr[br - 0x14]; if (vec <= 0) { ubaerror(&vc->uv_sc, &br, (int *)&vec); if (svec == 0) return; } if (cold) scb_fake(vec + vc->uh_ibase, br); else { struct ivec_dsp *scb_vec = (struct ivec_dsp *)((int)scb + 512); func = scb_vec[vec/4].hoppaddr; arg = scb_vec[vec/4].pushlarg; (*func)(arg); } } void dw780_init(sc) struct uba_softc *sc; { struct uba_vsoftc *vc = (void *)sc; vc->uv_uba->uba_cr = UBACR_ADINIT; vc->uv_uba->uba_cr = UBACR_IFS|UBACR_BRIE|UBACR_USEFIE|UBACR_SUEFIE; while ((vc->uv_uba->uba_cnfgr & UBACNFGR_UBIC) == 0) ; } #ifdef notyet void dw780_purge(sc, bdp) struct uba_softc *sc; int bdp; { struct uba_vsoftc *vc = (void *)sc; vc->uv_uba->uba_dpr[bdp] |= UBADPR_BNE; } #endif int ubawedgecnt = 10; int ubacrazy = 500; int zvcnt_max = 5000; /* in 8 sec */ int ubaerrcnt; /* * This routine is called by the locore code to process a UBA * error on an 11/780 or 8600. The arguments are passed * on the stack, and value-result (through some trickery). * In particular, the uvec argument is used for further * uba processing so the result aspect of it is very important. * It must not be declared register. */ /*ARGSUSED*/ void ubaerror(uh, ipl, uvec) register struct uba_softc *uh; int *ipl, *uvec; { struct uba_vsoftc *vc = (void *)uh; struct uba_regs *uba = vc->uv_uba; register int sr, s; if (*uvec == 0) { /* * Declare dt as unsigned so that negative values * are handled as >8 below, in case time was set back. */ u_long dt = time.tv_sec - vc->uh_zvtime; vc->uh_zvtotal++; if (dt > 8) { vc->uh_zvtime = time.tv_sec; vc->uh_zvcnt = 0; } if (++vc->uh_zvcnt > zvcnt_max) { printf("%s: too many zero vectors (%d in <%d sec)\n", vc->uv_sc.uh_dev.dv_xname, vc->uh_zvcnt, (int)dt + 1); printf("\tIPL 0x%x\n\tcnfgr: %b Adapter Code: 0x%x\n", *ipl, uba->uba_cnfgr&(~0xff), UBACNFGR_BITS, uba->uba_cnfgr&0xff); printf("\tsr: %b\n\tdcr: %x (MIC %sOK)\n", uba->uba_sr, ubasr_bits, uba->uba_dcr, (uba->uba_dcr&0x8000000)?"":"NOT "); ubareset(vc->uv_sc.uh_dev.dv_unit); } return; } if (uba->uba_cnfgr & NEX_CFGFLT) { printf("%s: sbi fault sr=%b cnfgr=%b\n", vc->uv_sc.uh_dev.dv_xname, uba->uba_sr, ubasr_bits, uba->uba_cnfgr, NEXFLT_BITS); ubareset(vc->uv_sc.uh_dev.dv_unit); *uvec = 0; return; } sr = uba->uba_sr; s = splimp(); printf("%s: uba error sr=%b fmer=%x fubar=%o\n", vc->uv_sc.uh_dev.dv_xname, uba->uba_sr, ubasr_bits, uba->uba_fmer, 4*uba->uba_fubar); splx(s); uba->uba_sr = sr; *uvec &= UBABRRVR_DIV; if (++ubaerrcnt % ubawedgecnt == 0) { if (ubaerrcnt > ubacrazy) panic("uba crazy"); printf("ERROR LIMIT "); ubareset(vc->uv_sc.uh_dev.dv_unit); *uvec = 0; } }