/* $NetBSD: tc_3000_500.c,v 1.17 1998/10/23 23:49:31 briggs 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 /* RCS ID & Copyright macro defns */ __KERNEL_RCSID(0, "$NetBSD: tc_3000_500.c,v 1.17 1998/10/23 23:49:31 briggs Exp $"); #include #include #include #include #include #include #ifndef EVCNT_COUNTERS #include #endif #include #include #include #include "sfb.h" #if NSFB > 0 #include #endif void tc_3000_500_intr_setup __P((void)); void tc_3000_500_intr_establish __P((struct device *, void *, tc_intrlevel_t, int (*)(void *), void *)); void tc_3000_500_intr_disestablish __P((struct device *, void *)); void tc_3000_500_iointr __P((void *, unsigned long)); int tc_3000_500_intrnull __P((void *)); int tc_3000_500_fb_cnattach __P((u_int64_t)); #define C(x) ((void *)(u_long)x) #define KV(x) (ALPHA_PHYS_TO_K0SEG(x)) struct tc_slotdesc tc_3000_500_slots[] = { { KV(0x100000000), C(TC_3000_500_DEV_OPT0), }, /* 0 - opt slot 0 */ { KV(0x120000000), C(TC_3000_500_DEV_OPT1), }, /* 1 - opt slot 1 */ { KV(0x140000000), C(TC_3000_500_DEV_OPT2), }, /* 2 - opt slot 2 */ { KV(0x160000000), C(TC_3000_500_DEV_OPT3), }, /* 3 - opt slot 3 */ { KV(0x180000000), C(TC_3000_500_DEV_OPT4), }, /* 4 - opt slot 4 */ { KV(0x1a0000000), C(TC_3000_500_DEV_OPT5), }, /* 5 - opt slot 5 */ { KV(0x1c0000000), C(TC_3000_500_DEV_BOGUS), }, /* 6 - TCDS ASIC */ { KV(0x1e0000000), C(TC_3000_500_DEV_BOGUS), }, /* 7 - IOCTL ASIC */ }; int tc_3000_500_nslots = sizeof(tc_3000_500_slots) / sizeof(tc_3000_500_slots[0]); struct tc_builtin tc_3000_500_graphics_builtins[] = { { "FLAMG-IO", 7, 0x00000000, C(TC_3000_500_DEV_IOASIC), }, { "PMAGB-BA", 7, 0x02000000, C(TC_3000_500_DEV_CXTURBO), }, { "PMAZ-DS ", 6, 0x00000000, C(TC_3000_500_DEV_TCDS), }, }; int tc_3000_500_graphics_nbuiltins = sizeof(tc_3000_500_graphics_builtins) / sizeof(tc_3000_500_graphics_builtins[0]); struct tc_builtin tc_3000_500_nographics_builtins[] = { { "FLAMG-IO", 7, 0x00000000, C(TC_3000_500_DEV_IOASIC), }, { "PMAZ-DS ", 6, 0x00000000, C(TC_3000_500_DEV_TCDS), }, }; int tc_3000_500_nographics_nbuiltins = sizeof(tc_3000_500_nographics_builtins) / sizeof(tc_3000_500_nographics_builtins[0]); u_int32_t tc_3000_500_intrbits[TC_3000_500_NCOOKIES] = { TC_3000_500_IR_OPT0, TC_3000_500_IR_OPT1, TC_3000_500_IR_OPT2, TC_3000_500_IR_OPT3, TC_3000_500_IR_OPT4, TC_3000_500_IR_OPT5, TC_3000_500_IR_TCDS, TC_3000_500_IR_IOASIC, TC_3000_500_IR_CXTURBO, }; struct tcintr { int (*tci_func) __P((void *)); void *tci_arg; } tc_3000_500_intr[TC_3000_500_NCOOKIES]; u_int32_t tc_3000_500_imask; /* intrs we want to ignore; mirrors IMR. */ void tc_3000_500_intr_setup() { u_long i; /* * Disable all slot interrupts. Note that this cannot * actually disable CXTurbo, TCDS, and IOASIC interrupts. */ tc_3000_500_imask = *(volatile u_int32_t *)TC_3000_500_IMR_READ; for (i = 0; i < TC_3000_500_NCOOKIES; i++) tc_3000_500_imask |= tc_3000_500_intrbits[i]; *(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask; tc_mb(); /* * Set up interrupt handlers. */ for (i = 0; i < TC_3000_500_NCOOKIES; i++) { tc_3000_500_intr[i].tci_func = tc_3000_500_intrnull; tc_3000_500_intr[i].tci_arg = (void *)i; } } void tc_3000_500_intr_establish(tcadev, cookie, level, func, arg) struct device *tcadev; void *cookie, *arg; tc_intrlevel_t level; int (*func) __P((void *)); { u_long dev = (u_long)cookie; #ifdef DIAGNOSTIC /* XXX bounds-check cookie. */ #endif if (tc_3000_500_intr[dev].tci_func != tc_3000_500_intrnull) panic("tc_3000_500_intr_establish: cookie %d twice", dev); tc_3000_500_intr[dev].tci_func = func; tc_3000_500_intr[dev].tci_arg = arg; tc_3000_500_imask &= ~tc_3000_500_intrbits[dev]; *(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask; tc_mb(); } void tc_3000_500_intr_disestablish(tcadev, cookie) struct device *tcadev; void *cookie; { u_long dev = (u_long)cookie; #ifdef DIAGNOSTIC /* XXX bounds-check cookie. */ #endif if (tc_3000_500_intr[dev].tci_func == tc_3000_500_intrnull) panic("tc_3000_500_intr_disestablish: cookie %d bad intr", dev); tc_3000_500_imask |= tc_3000_500_intrbits[dev]; *(volatile u_int32_t *)TC_3000_500_IMR_WRITE = tc_3000_500_imask; tc_mb(); tc_3000_500_intr[dev].tci_func = tc_3000_500_intrnull; tc_3000_500_intr[dev].tci_arg = (void *)dev; } int tc_3000_500_intrnull(val) void *val; { panic("tc_3000_500_intrnull: uncaught TC intr for cookie %ld\n", (u_long)val); } void tc_3000_500_iointr(framep, vec) void *framep; unsigned long vec; { u_int32_t ir; 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(); ir = *(volatile u_int32_t *)TC_3000_500_IR_CLEAR; /* Ignore interrupts that we haven't enabled. */ ir &= ~(tc_3000_500_imask & 0x1ff); ifound = 0; #ifdef EVCNT_COUNTERS /* No interrupt counting via evcnt counters */ XXX BREAK HERE XXX #else /* !EVCNT_COUNTERS */ #define INCRINTRCNT(slot) intrcnt[INTRCNT_KN15 + slot]++ #endif /* EVCNT_COUNTERS */ #define CHECKINTR(slot) \ if (ir & tc_3000_500_intrbits[slot]) { \ ifound = 1; \ INCRINTRCNT(slot); \ (*tc_3000_500_intr[slot].tci_func) \ (tc_3000_500_intr[slot].tci_arg); \ } /* Do them in order of priority; highest slot # first. */ CHECKINTR(TC_3000_500_DEV_CXTURBO); CHECKINTR(TC_3000_500_DEV_IOASIC); CHECKINTR(TC_3000_500_DEV_TCDS); CHECKINTR(TC_3000_500_DEV_OPT5); CHECKINTR(TC_3000_500_DEV_OPT4); CHECKINTR(TC_3000_500_DEV_OPT3); CHECKINTR(TC_3000_500_DEV_OPT2); CHECKINTR(TC_3000_500_DEV_OPT1); CHECKINTR(TC_3000_500_DEV_OPT0); #undef CHECKINTR #ifdef DIAGNOSTIC #define PRINTINTR(msg, bits) \ if (ir & bits) \ printf(msg); PRINTINTR("Second error occurred\n", TC_3000_500_IR_ERR2); PRINTINTR("DMA buffer error\n", TC_3000_500_IR_DMABE); PRINTINTR("DMA cross 2K boundary\n", TC_3000_500_IR_DMA2K); PRINTINTR("TC reset in progress\n", TC_3000_500_IR_TCRESET); PRINTINTR("TC parity error\n", TC_3000_500_IR_TCPAR); PRINTINTR("DMA tag error\n", TC_3000_500_IR_DMATAG); PRINTINTR("Single-bit error\n", TC_3000_500_IR_DMASBE); PRINTINTR("Double-bit error\n", TC_3000_500_IR_DMADBE); PRINTINTR("TC I/O timeout\n", TC_3000_500_IR_TCTIMEOUT); PRINTINTR("DMA block too long\n", TC_3000_500_IR_DMABLOCK); PRINTINTR("Invalid I/O address\n", TC_3000_500_IR_IOADDR); PRINTINTR("DMA scatter/gather invalid\n", TC_3000_500_IR_DMASG); PRINTINTR("Scatter/gather parity error\n", TC_3000_500_IR_SGPAR); #undef PRINTINTR #endif } while (ifound); } /* * tc_3000_500_fb_cnattach -- * Attempt to map the CTB output device to a slot and attach the * framebuffer as the output side of the console. */ int tc_3000_500_fb_cnattach(turbo_slot) u_int64_t turbo_slot; { u_int32_t output_slot; output_slot = turbo_slot & 0xffffffff; if (output_slot >= tc_3000_500_nslots) { return 0; } if (hwrpb->rpb_variation & SV_GRAPHICS) { if (output_slot == 0) { #if NSFB > 0 sfb_cnattach(KV(0x1e0000000) + 0x02000000); return 1; #else return 0; #endif } } else { /* * Slots 0-2 in the tc_3000_500_slots array are only * on the 500 models that also have the CXTurbo * (500/800/900) and a total of 6 TC slots. For the * 400/600/700, slots 0-2 are in table locations 3-5, so * offset the CTB slot by 3 to get the address in our table. */ output_slot += 3; } return tc_fb_cnattach(tc_3000_500_slots[output_slot-1].tcs_addr); } #if 0 /* * tc_3000_500_ioslot -- * Set the PBS bits for devices on the TC. */ void tc_3000_500_ioslot(slot, flags, set) u_int32_t slot, flags; int set; { volatile u_int32_t *iosp; u_int32_t ios; int s; iosp = (volatile u_int32_t *)TC_3000_500_IOSLOT; ios = *iosp; flags <<= (slot * 3); if (set) ios |= flags; else ios &= ~flags; s = splhigh(); *iosp = ios; tc_mb(); splx(s); } #endif