/* $NetBSD: pci_kn8ae.c,v 1.3 1997/04/07 02:01:26 cgd Exp $ */ /* * Copyright (c) 1997 by Matthew Jacob * NASA AMES Research Center. * 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 immediately at the beginning of the file, without modification, * 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. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. */ #include /* Pull in config options headers */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef EVCNT_COUNTERS #include #endif int dec_kn8ae_intr_map __P((void *, pcitag_t, int, int, pci_intr_handle_t *)); const char *dec_kn8ae_intr_string __P((void *, pci_intr_handle_t)); void *dec_kn8ae_intr_establish __P((void *, pci_intr_handle_t, int, int (*func)(void *), void *)); void dec_kn8ae_intr_disestablish __P((void *, void *)); #define NIONODE 5 #define NHOSE 4 struct vectab { int (*func) __P((void *)); void *arg; } vectab[NIONODE][NHOSE][DWLPX_MAXDEV]; static u_int32_t imaskcache[NIONODE][NHOSE][NHPC]; #ifdef EVCNT_COUNTERS struct evcnt kn8ae_intr_evcnt; #endif int kn8ae_spurious __P((void *)); void kn8ae_iointr __P((void *framep, unsigned long vec)); void kn8ae_enadis_intr __P((pci_intr_handle_t, int)); void kn8ae_enable_intr __P((pci_intr_handle_t irq)); void kn8ae_disable_intr __P((pci_intr_handle_t irq)); void pci_kn8ae_pickintr(ccp, first) struct dwlpx_config *ccp; int first; { int io, hose, dev; pci_chipset_tag_t pc = &ccp->cc_pc; pc->pc_intr_v = ccp; pc->pc_intr_map = dec_kn8ae_intr_map; pc->pc_intr_string = dec_kn8ae_intr_string; pc->pc_intr_establish = dec_kn8ae_intr_establish; pc->pc_intr_disestablish = dec_kn8ae_intr_disestablish; if (!first) { return; } for (io = 0; io < NIONODE; io++) { for (hose = 0; hose < NHOSE; hose++) { for (dev = 0; dev < DWLPX_MAXDEV; dev++) { vectab[io][hose][dev].func = kn8ae_spurious; vectab[io][hose][dev].arg = (void *) (u_int64_t) DWLPX_MVEC(io, hose, dev); } } } for (io = 0; io < NIONODE; io++) { for (hose = 0; hose < NHOSE; hose++) { for (dev = 0; dev < NHPC; dev++) { imaskcache[io][hose][dev] = DWLPX_IMASK_DFLT; } } } set_iointr(kn8ae_iointr); } int dec_kn8ae_intr_map(ccv, bustag, buspin, line, ihp) void *ccv; pcitag_t bustag; int buspin, line; pci_intr_handle_t *ihp; { int device, ionode, hose; struct dwlpx_config *ccp = ccv; pci_chipset_tag_t pc = &ccp->cc_pc; if (buspin == 0) { /* No IRQ used. */ return 1; } if (buspin > 4) { printf("pci_map_int: bad interrupt pin %d\n", buspin); return 1; } pci_decompose_tag(pc, bustag, NULL, &device, NULL); ionode = ccp->cc_sc->dwlpx_node - 4; hose = ccp->cc_sc->dwlpx_hosenum; /* * handle layout: * bits 0..15 DWLPX_MVEC(ionode, hose, device) * bits 16-24 buspin (1..N) * bits 24-31 IPL */ *ihp = DWLPX_MVEC(ionode, hose, device) | (buspin << 16) | (14 << 24); return (0); } const char * dec_kn8ae_intr_string(ccv, ih) void *ccv; pci_intr_handle_t ih; { static char irqstr[64]; sprintf(irqstr, "kn8ae irq %d vector 0x%x PCI Interrupt Pin %c", (ih >> 24), ih & 0xffff, (((ih >> 16) & 0x7) - 1) + 'A'); return (irqstr); } void * dec_kn8ae_intr_establish(ccv, ih, level, func, arg) void *ccv; pci_intr_handle_t ih; int level; int (*func) __P((void *)); void *arg; { struct dwlpx_config *ccp = ccv; void *cookie = NULL; int ionode, hose, device, s; struct vectab *vp; ionode = ccp->cc_sc->dwlpx_node - 4; hose = ccp->cc_sc->dwlpx_hosenum; device = DWLPX_MVEC_PCISLOT(ih); if (ionode < 0 || ionode >= NIONODE) { panic("dec_kn8ae_intr_establish: bad ionode %d\n", ionode); } if (hose < 0 || hose >= NHOSE) { panic("dec_kn8ae_intr_establish: bad hose %d\n", hose); } if (device < 0 || device >= DWLPX_MAXDEV) { panic("dec_kn8ae_intr_establish: bad device %d\n", device); } vp = &vectab[ionode][hose][device]; if (vp->func != kn8ae_spurious) { printf("dec_kn8ae_intr_establish: vector 0x%x already used\n", ih & 0xffff); return (cookie); } s = splhigh(); vp->func = func; vp->arg = arg; (void) splx(s); kn8ae_enable_intr(ih); cookie = (void *) (u_int64_t) DWLPX_MVEC(ionode, hose, device); return (cookie); } void dec_kn8ae_intr_disestablish(ccv, cookie) void *ccv, *cookie; { int ionode, hose, device, s; struct vectab *vp; ionode = DWLPX_MVEC_IONODE(cookie); hose = DWLPX_MVEC_HOSE(cookie); device = DWLPX_MVEC_PCISLOT(cookie); if (ionode < 0 || ionode >= NIONODE || hose < 0 || hose >= NHOSE || device < 0 || device >= DWLPX_MAXDEV) { return; } vp = &vectab[ionode][hose][device]; s = splhigh(); vp->func = kn8ae_spurious; vp->arg = cookie; (void) splx(s); } void kn8ae_iointr(framep, vec) void *framep; unsigned long vec; { struct vectab *vp; int ionode, hose, device; if ((vec & DWLPX_VEC_MARK) == 0) { panic("kn8ae_iointr: vec 0x%x\n", vec); } #ifdef EVCNT_COUNTERS kn8ae_intr_evcnt.ev_count++; #else ; /* XXX */ #endif ionode = DWLPX_MVEC_IONODE(vec); hose = DWLPX_MVEC_HOSE(vec); device = DWLPX_MVEC_PCISLOT(vec); if (ionode < 0 || ionode >= NIONODE || hose < 0 || hose >= NHOSE || device < 0 || device >= DWLPX_MAXDEV) { panic("kn8ae_iointr: malformed vector 0x%x\n", vec); } vp = &vectab[ionode][hose][device]; if ((*vp->func)(vp->arg) == 0) { printf("kn8ae_iointr: TLSB Node %d Hose %d Slot %d - " " unclaimed interrupt\n", ionode + 4, hose, device); } } int kn8ae_spurious(arg) void *arg; { int ionode, hose, device; ionode = DWLPX_MVEC_IONODE(arg); hose = DWLPX_MVEC_HOSE(arg); device = DWLPX_MVEC_PCISLOT(arg); printf("Spurious Interrupt from TLSB Node %d Hose %d Slot %d\n", ionode + 4, hose, device); return (-1); } void kn8ae_enadis_intr(irq, onoff) pci_intr_handle_t irq; int onoff; { unsigned long paddr; u_int32_t val; int ionode, hose, device, hpc, busp, s; ionode = DWLPX_MVEC_IONODE(irq); hose = DWLPX_MVEC_HOSE(irq); device = DWLPX_MVEC_PCISLOT(irq); busp = 1 << (((irq >> 16) & 0xff) - 1); paddr = (1LL << 39); paddr |= (unsigned long) ionode << 36; paddr |= (unsigned long) hose << 34; if (device < 4) { hpc = 0; } else if (device < 8) { hpc = 1; device -= 4; } else { hpc = 2; device -= 8; } busp <<= (device << 2); val = imaskcache[ionode][hose][hpc]; if (onoff) val |= busp; else val &= ~busp; imaskcache[ionode][hose][hpc] = val; #if 0 printf("kn8ae_%s_intr: irq %lx imsk 0x%x hpc %d TLSB node %d hose %d\n", onoff? "enable" : "disable", irq, val, hpc, ionode + 4, hose); #endif s = splhigh(); REGVAL(PCIA_IMASK(hpc) + paddr) = val; alpha_mb(); (void) splx(s); } void kn8ae_enable_intr(irq) pci_intr_handle_t irq; { kn8ae_enadis_intr(irq, 1); } void kn8ae_disable_intr(irq) pci_intr_handle_t irq; { kn8ae_enadis_intr(irq, 0); }