/* $OpenBSD: tc_3000_300.c,v 1.5 1996/10/30 22:41:16 niklas Exp $ */ /* $NetBSD: tc_3000_300.c,v 1.12 1996/10/13 03:00:37 christos Exp $ */ /* * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #include #include #include #include #include #ifndef EVCNT_COUNTERS #include #endif #include #include #include #include void tc_3000_300_intr_setup __P((void)); void tc_3000_300_intr_establish __P((struct device *, void *, tc_intrlevel_t, int (*)(void *), void *)); void tc_3000_300_intr_disestablish __P((struct device *, void *)); void tc_3000_300_iointr __P((void *, unsigned long)); int tc_3000_300_intrnull __P((void *)); #define C(x) ((void *)(u_long)x) #define KV(x) (ALPHA_PHYS_TO_K0SEG(x)) /* * We have to read and modify the IOASIC registers directly, because * the TC option slot interrupt request and mask bits are stored there, * and the ioasic code isn't initted when we need to frob some interrupt * bits. */ #define DEC_3000_300_IOASIC_ADDR KV(0x1a0000000) struct tc_slotdesc tc_3000_300_slots[] = { { KV(0x100000000), C(TC_3000_300_DEV_OPT0), }, /* 0 - opt slot 0 */ { KV(0x120000000), C(TC_3000_300_DEV_OPT1), }, /* 1 - opt slot 1 */ { KV(0x180000000), C(TC_3000_300_DEV_BOGUS), }, /* 2 - TCDS ASIC */ { KV(0x1a0000000), C(TC_3000_300_DEV_BOGUS), }, /* 3 - IOCTL ASIC */ { KV(0x1c0000000), C(TC_3000_300_DEV_CXTURBO), }, /* 4 - CXTurbo */ }; int tc_3000_300_nslots = sizeof(tc_3000_300_slots) / sizeof(tc_3000_300_slots[0]); struct tc_builtin tc_3000_300_builtins[] = { { "PMAGB-BA", 4, 0x02000000, C(TC_3000_300_DEV_CXTURBO), }, { "FLAMG-IO", 3, 0x00000000, C(TC_3000_300_DEV_IOASIC), }, { "PMAZ-DS ", 2, 0x00000000, C(TC_3000_300_DEV_TCDS), }, }; int tc_3000_300_nbuiltins = sizeof(tc_3000_300_builtins) / sizeof(tc_3000_300_builtins[0]); struct tcintr { int (*tci_func) __P((void *)); void *tci_arg; } tc_3000_300_intr[TC_3000_300_NCOOKIES]; void tc_3000_300_intr_setup() { volatile u_int32_t *imskp; u_long i; /* * Disable all interrupts that we can (can't disable builtins). */ imskp = (volatile u_int32_t *)IOASIC_REG_IMSK(DEC_3000_300_IOASIC_ADDR); *imskp &= ~(IOASIC_INTR_300_OPT0 | IOASIC_INTR_300_OPT1); /* * Set up interrupt handlers. */ for (i = 0; i < TC_3000_300_NCOOKIES; i++) { tc_3000_300_intr[i].tci_func = tc_3000_300_intrnull; tc_3000_300_intr[i].tci_arg = (void *)i; } } void tc_3000_300_intr_establish(tcadev, cookie, level, func, arg) struct device *tcadev; void *cookie, *arg; tc_intrlevel_t level; int (*func) __P((void *)); { volatile u_int32_t *imskp; u_long dev = (u_long)cookie; #ifdef DIAGNOSTIC /* XXX bounds-check cookie. */ #endif if (tc_3000_300_intr[dev].tci_func != tc_3000_300_intrnull) panic("tc_3000_300_intr_establish: cookie %d twice", dev); tc_3000_300_intr[dev].tci_func = func; tc_3000_300_intr[dev].tci_arg = arg; imskp = (volatile u_int32_t *)IOASIC_REG_IMSK(DEC_3000_300_IOASIC_ADDR); switch (dev) { case TC_3000_300_DEV_OPT0: *imskp |= IOASIC_INTR_300_OPT0; break; case TC_3000_300_DEV_OPT1: *imskp |= IOASIC_INTR_300_OPT1; break; default: /* interrupts for builtins always enabled */ break; } } void tc_3000_300_intr_disestablish(tcadev, cookie) struct device *tcadev; void *cookie; { volatile u_int32_t *imskp; u_long dev = (u_long)cookie; #ifdef DIAGNOSTIC /* XXX bounds-check cookie. */ #endif if (tc_3000_300_intr[dev].tci_func == tc_3000_300_intrnull) panic("tc_3000_300_intr_disestablish: cookie %d bad intr", dev); imskp = (volatile u_int32_t *)IOASIC_REG_IMSK(DEC_3000_300_IOASIC_ADDR); switch (dev) { case TC_3000_300_DEV_OPT0: *imskp &= ~IOASIC_INTR_300_OPT0; break; case TC_3000_300_DEV_OPT1: *imskp &= ~IOASIC_INTR_300_OPT1; break; default: /* interrupts for builtins always enabled */ break; } tc_3000_300_intr[dev].tci_func = tc_3000_300_intrnull; tc_3000_300_intr[dev].tci_arg = (void *)dev; } int tc_3000_300_intrnull(val) void *val; { panic("tc_3000_300_intrnull: uncaught TC intr for cookie %ld\n", (u_long)val); } void tc_3000_300_iointr(framep, vec) void *framep; unsigned long vec; { u_int32_t tcir, ioasicir, ioasicimr; int ifound; #ifdef DIAGNOSTIC int s; if (vec != 0x800) panic("INVALID ASSUMPTION: vec 0x%lx, not 0x800", vec); s = splhigh(); if (s != ALPHA_PSL_IPL_IO) panic("INVALID ASSUMPTION: IPL %d, not %d", s, ALPHA_PSL_IPL_IO); splx(s); #endif do { tc_syncbus(); /* find out what interrupts/errors occurred */ tcir = *(volatile u_int32_t *)TC_3000_300_IR; ioasicir = *(volatile u_int32_t *) IOASIC_REG_INTR(DEC_3000_300_IOASIC_ADDR); ioasicimr = *(volatile u_int32_t *) IOASIC_REG_IMSK(DEC_3000_300_IOASIC_ADDR); tc_mb(); /* Ignore interrupts that aren't enabled out. */ ioasicir &= ioasicimr; /* clear the interrupts/errors we found. */ *(volatile u_int32_t *)TC_3000_300_IR = tcir; /* XXX can't clear TC option slot interrupts here? */ tc_wmb(); ifound = 0; #ifdef EVCNT_COUNTERS /* No interrupt counting via evcnt counters */ XXX BREAK HERE XXX #else /* !EVCNT_COUNTERS */ #define INCRINTRCNT(slot) intrcnt[INTRCNT_KN16 + slot]++ #endif /* EVCNT_COUNTERS */ #define CHECKINTR(slot, flag) \ if (flag) { \ ifound = 1; \ INCRINTRCNT(slot); \ (*tc_3000_300_intr[slot].tci_func) \ (tc_3000_300_intr[slot].tci_arg); \ } /* Do them in order of priority; highest slot # first. */ CHECKINTR(TC_3000_300_DEV_CXTURBO, tcir & TC_3000_300_IR_CXTURBO); CHECKINTR(TC_3000_300_DEV_IOASIC, (tcir & TC_3000_300_IR_IOASIC) && (ioasicir & ~(IOASIC_INTR_300_OPT1|IOASIC_INTR_300_OPT0))); CHECKINTR(TC_3000_300_DEV_TCDS, tcir & TC_3000_300_IR_TCDS); CHECKINTR(TC_3000_300_DEV_OPT1, ioasicir & IOASIC_INTR_300_OPT1); CHECKINTR(TC_3000_300_DEV_OPT0, ioasicir & IOASIC_INTR_300_OPT0); #undef CHECKINTR #ifdef DIAGNOSTIC #define PRINTINTR(msg, bits) \ if (tcir & bits) \ printf(msg); PRINTINTR("BCache tag parity error\n", TC_3000_300_IR_BCTAGPARITY); PRINTINTR("TC overrun error\n", TC_3000_300_IR_TCOVERRUN); PRINTINTR("TC I/O timeout\n", TC_3000_300_IR_TCTIMEOUT); PRINTINTR("Bcache parity error\n", TC_3000_300_IR_BCACHEPARITY); PRINTINTR("Memory parity error\n", TC_3000_300_IR_MEMPARITY); #undef PRINTINTR #endif } while (ifound); }