/*- * Copyright (c) 1998 Doug Rabson * 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. * * 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. * * $FreeBSD$ */ /* * Copyright (c) 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. */ /* * Additional Copyright (c) 1998 by Andrew Gallatin for Duke University */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define KV(pa) ALPHA_PHYS_TO_K0SEG(pa) static devclass_t apecs_devclass; static device_t apecs0; /* XXX only one for now */ struct apecs_softc { vm_offset_t dmem_base; /* dense memory */ vm_offset_t smem_base; /* sparse memory */ vm_offset_t io_base; /* dense i/o */ vm_offset_t cfg0_base; /* dense pci0 config */ vm_offset_t cfg1_base; /* dense pci1 config */ }; #define APECS_SOFTC(dev) (struct apecs_softc*) device_get_softc(dev) static alpha_chipset_inb_t apecs_swiz_inb; static alpha_chipset_inw_t apecs_swiz_inw; static alpha_chipset_inl_t apecs_swiz_inl; static alpha_chipset_outb_t apecs_swiz_outb; static alpha_chipset_outw_t apecs_swiz_outw; static alpha_chipset_outl_t apecs_swiz_outl; static alpha_chipset_readb_t apecs_swiz_readb; static alpha_chipset_readw_t apecs_swiz_readw; static alpha_chipset_readl_t apecs_swiz_readl; static alpha_chipset_writeb_t apecs_swiz_writeb; static alpha_chipset_writew_t apecs_swiz_writew; static alpha_chipset_writel_t apecs_swiz_writel; static alpha_chipset_maxdevs_t apecs_swiz_maxdevs; static alpha_chipset_cfgreadb_t apecs_swiz_cfgreadb; static alpha_chipset_cfgreadw_t apecs_swiz_cfgreadw; static alpha_chipset_cfgreadl_t apecs_swiz_cfgreadl; static alpha_chipset_cfgwriteb_t apecs_swiz_cfgwriteb; static alpha_chipset_cfgwritew_t apecs_swiz_cfgwritew; static alpha_chipset_cfgwritel_t apecs_swiz_cfgwritel; static alpha_chipset_addrcvt_t apecs_cvt_dense; static alpha_chipset_read_hae_t apecs_read_hae; static alpha_chipset_write_hae_t apecs_write_hae; static alpha_chipset_t apecs_swiz_chipset = { apecs_swiz_inb, apecs_swiz_inw, apecs_swiz_inl, apecs_swiz_outb, apecs_swiz_outw, apecs_swiz_outl, apecs_swiz_readb, apecs_swiz_readw, apecs_swiz_readl, apecs_swiz_writeb, apecs_swiz_writew, apecs_swiz_writel, apecs_swiz_maxdevs, apecs_swiz_cfgreadb, apecs_swiz_cfgreadw, apecs_swiz_cfgreadl, apecs_swiz_cfgwriteb, apecs_swiz_cfgwritew, apecs_swiz_cfgwritel, apecs_cvt_dense, NULL, apecs_read_hae, apecs_write_hae, }; static int apecs_swiz_maxdevs(u_int b) { return 12; /* XXX */ } static u_int8_t apecs_swiz_inb(u_int32_t port) { alpha_mb(); return SPARSE_READ_BYTE(KV(APECS_PCI_SIO), port); } static u_int16_t apecs_swiz_inw(u_int32_t port) { alpha_mb(); return SPARSE_READ_WORD(KV(APECS_PCI_SIO), port); } static u_int32_t apecs_swiz_inl(u_int32_t port) { alpha_mb(); return SPARSE_READ_LONG(KV(APECS_PCI_SIO), port); } static void apecs_swiz_outb(u_int32_t port, u_int8_t data) { SPARSE_WRITE_BYTE(KV(APECS_PCI_SIO), port, data); alpha_wmb(); } static void apecs_swiz_outw(u_int32_t port, u_int16_t data) { SPARSE_WRITE_WORD(KV(APECS_PCI_SIO), port, data); alpha_wmb(); } static void apecs_swiz_outl(u_int32_t port, u_int32_t data) { SPARSE_WRITE_LONG(KV(APECS_PCI_SIO), port, data); alpha_wmb(); } /* * Memory functions. * * XXX linux does 32-bit reads/writes via dense space. This doesn't * appear to work for devices behind a ppb. I'm using sparse * accesses & they appear to work just fine everywhere. */ static u_int32_t apecs_hae_mem; #define REG1 (1UL << 24) static __inline void apecs_swiz_set_hae_mem(u_int32_t *pa) { int s; u_int32_t msb; if(*pa >= REG1){ msb = *pa & 0xf8000000; *pa -= msb; s = splhigh(); if (msb != apecs_hae_mem) { apecs_hae_mem = msb; REGVAL(EPIC_HAXR1) = apecs_hae_mem; alpha_mb(); apecs_hae_mem = REGVAL(EPIC_HAXR1); } splx(s); } } static u_int8_t apecs_swiz_readb(u_int32_t pa) { alpha_mb(); apecs_swiz_set_hae_mem(&pa); return SPARSE_READ_BYTE(KV(APECS_PCI_SPARSE), pa); } static u_int16_t apecs_swiz_readw(u_int32_t pa) { alpha_mb(); apecs_swiz_set_hae_mem(&pa); return SPARSE_READ_WORD(KV(APECS_PCI_SPARSE), pa); } static u_int32_t apecs_swiz_readl(u_int32_t pa) { alpha_mb(); apecs_swiz_set_hae_mem(&pa); return SPARSE_READ_LONG(KV(APECS_PCI_SPARSE), pa); } static void apecs_swiz_writeb(u_int32_t pa, u_int8_t data) { apecs_swiz_set_hae_mem(&pa); SPARSE_WRITE_BYTE(KV(APECS_PCI_SPARSE), pa, data); alpha_wmb(); } static void apecs_swiz_writew(u_int32_t pa, u_int16_t data) { apecs_swiz_set_hae_mem(&pa); SPARSE_WRITE_WORD(KV(APECS_PCI_SPARSE), pa, data); alpha_wmb(); } static void apecs_swiz_writel(u_int32_t pa, u_int32_t data) { apecs_swiz_set_hae_mem(&pa); SPARSE_WRITE_LONG(KV(APECS_PCI_SPARSE), pa, data); alpha_wmb(); } #define APECS_SWIZ_CFGOFF(b, s, f, r) \ (((b) << 16) | ((s) << 11) | ((f) << 8) | (r)) #define APECS_TYPE1_SETUP(b,s,old_haxr2) if((b)) { \ do { \ (s) = splhigh(); \ (old_haxr2) = REGVAL(EPIC_HAXR2); \ alpha_mb(); \ REGVAL(EPIC_HAXR2) = (old_haxr2) | 0x1; \ alpha_mb(); \ } while(0); \ } #define APECS_TYPE1_TEARDOWN(b,s,old_haxr2) if((b)) { \ do { \ alpha_mb(); \ REGVAL(EPIC_HAXR2) = (old_haxr2); \ alpha_mb(); \ splx((s)); \ } while(0); \ } #define SWIZ_CFGREAD(b, s, f, r, width, type) \ type val = ~0; \ int ipl = 0; \ u_int32_t old_haxr2 = 0; \ struct apecs_softc* sc = APECS_SOFTC(apecs0); \ vm_offset_t off = APECS_SWIZ_CFGOFF(b, s, f, r); \ vm_offset_t kv = SPARSE_##width##_ADDRESS(sc->cfg0_base, off); \ alpha_mb(); \ APECS_TYPE1_SETUP(b,ipl,old_haxr2); \ if (!badaddr((caddr_t)kv, sizeof(type))) { \ val = SPARSE_##width##_EXTRACT(off, SPARSE_READ(kv)); \ } \ APECS_TYPE1_TEARDOWN(b,ipl,old_haxr2); \ return val; #define SWIZ_CFGWRITE(b, s, f, r, data, width, type) \ int ipl = 0; \ u_int32_t old_haxr2 = 0; \ struct apecs_softc* sc = APECS_SOFTC(apecs0); \ vm_offset_t off = APECS_SWIZ_CFGOFF(b, s, f, r); \ vm_offset_t kv = SPARSE_##width##_ADDRESS(sc->cfg0_base, off); \ alpha_mb(); \ APECS_TYPE1_SETUP(b,ipl,old_haxr2); \ if (!badaddr((caddr_t)kv, sizeof(type))) { \ SPARSE_WRITE(kv, SPARSE_##width##_INSERT(off, data)); \ alpha_wmb(); \ } \ APECS_TYPE1_TEARDOWN(b,ipl,old_haxr2); \ return; #if 1 static u_int8_t apecs_swiz_cfgreadb(u_int h, u_int b, u_int s, u_int f, u_int r) { SWIZ_CFGREAD(b, s, f, r, BYTE, u_int8_t); } static u_int16_t apecs_swiz_cfgreadw(u_int h, u_int b, u_int s, u_int f, u_int r) { SWIZ_CFGREAD(b, s, f, r, WORD, u_int16_t); } static u_int32_t apecs_swiz_cfgreadl(u_int h, u_int b, u_int s, u_int f, u_int r) { SWIZ_CFGREAD(b, s, f, r, LONG, u_int32_t); } static void apecs_swiz_cfgwriteb(u_int h, u_int b, u_int s, u_int f, u_int r, u_int8_t data) { SWIZ_CFGWRITE(b, s, f, r, data, BYTE, u_int8_t); } static void apecs_swiz_cfgwritew(u_int h, u_int b, u_int s, u_int f, u_int r, u_int16_t data) { SWIZ_CFGWRITE(b, s, f, r, data, WORD, u_int16_t); } static void apecs_swiz_cfgwritel(u_int h, u_int b, u_int s, u_int f, u_int r, u_int32_t data) { SWIZ_CFGWRITE(b, s, f, r, data, LONG, u_int32_t); } #else static u_int8_t apecs_swiz_cfgreadb(u_int h, u_int b, u_int s, u_int f, u_int r) { struct apecs_softc* sc = APECS_SOFTC(apecs0); vm_offset_t off = APECS_SWIZ_CFGOFF(b, s, f, r); alpha_mb(); if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_BYTE_OFFSET(off)), 1)) return ~0; return SPARSE_READ_BYTE(sc->cfg0_base, off); } static u_int16_t apecs_swiz_cfgreadw(u_int h, u_int b, u_int s, u_int f, u_int r) { struct apecs_softc* sc = APECS_SOFTC(apecs0); vm_offset_t off = APECS_SWIZ_CFGOFF(b, s, f, r); alpha_mb(); if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_WORD_OFFSET(off)), 2)) return ~0; return SPARSE_READ_WORD(sc->cfg0_base, off); } static u_int32_t apecs_swiz_cfgreadl(u_int h, u_int b, u_int s, u_int f, u_int r) { struct apecs_softc* sc = APECS_SOFTC(apecs0); vm_offset_t off = APECS_SWIZ_CFGOFF(b, s, f, r); alpha_mb(); if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_LONG_OFFSET(off)), 4)) return ~0; return SPARSE_READ_LONG(sc->cfg0_base, off); } static void apecs_swiz_cfgwriteb(u_int h, u_int b, u_int s, u_int f, u_int r, u_int8_t data) { struct apecs_softc* sc = APECS_SOFTC(apecs0); vm_offset_t off = APECS_SWIZ_CFGOFF(b, s, f, r); if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_BYTE_OFFSET(off)), 1)) return; SPARSE_WRITE_BYTE(sc->cfg0_base, off, data); alpha_wmb(); } static void apecs_swiz_cfgwritew(u_int h, u_int b, u_int s, u_int f, u_int r, u_int16_t data) { struct apecs_softc* sc = APECS_SOFTC(apecs0); vm_offset_t off = APECS_SWIZ_CFGOFF(b, s, f, r); if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_WORD_OFFSET(off)), 2)) return; SPARSE_WRITE_WORD(sc->cfg0_base, off, data); alpha_wmb(); } static void apecs_swiz_cfgwritel(u_int h, u_int b, u_int s, u_int f, u_int r, u_int32_t data) { struct apecs_softc* sc = APECS_SOFTC(apecs0); vm_offset_t off = APECS_SWIZ_CFGOFF(b, s, f, r); if (badaddr((caddr_t)(sc->cfg0_base + SPARSE_LONG_OFFSET(off)), 4)) return; SPARSE_WRITE_LONG(sc->cfg0_base, off, data); alpha_wmb(); } #endif static vm_offset_t apecs_cvt_dense(vm_offset_t addr) { addr &= 0xffffffffUL; return (addr | APECS_PCI_DENSE); } static u_int64_t apecs_read_hae(void) { return apecs_hae_mem & 0xf8000000; } static void apecs_write_hae(u_int64_t hae) { u_int32_t pa = hae; apecs_swiz_set_hae_mem(&pa); } static int apecs_probe(device_t dev); static int apecs_attach(device_t dev); static struct resource *apecs_alloc_resource(device_t bus, device_t child, int type, int *rid, u_long start, u_long end, u_long count, u_int flags); static int apecs_release_resource(device_t bus, device_t child, int type, int rid, struct resource *r); static int apecs_setup_intr(device_t dev, device_t child, struct resource *irq, int flags, driver_intr_t *intr, void *arg, void **cookiep); static int apecs_teardown_intr(device_t dev, device_t child, struct resource *irq, void *cookie); static device_method_t apecs_methods[] = { /* Device interface */ DEVMETHOD(device_probe, apecs_probe), DEVMETHOD(device_attach, apecs_attach), /* Bus interface */ DEVMETHOD(bus_alloc_resource, apecs_alloc_resource), DEVMETHOD(bus_release_resource, apecs_release_resource), DEVMETHOD(bus_activate_resource, pci_activate_resource), DEVMETHOD(bus_deactivate_resource, pci_deactivate_resource), DEVMETHOD(bus_setup_intr, apecs_setup_intr), DEVMETHOD(bus_teardown_intr, apecs_teardown_intr), { 0, 0 } }; static driver_t apecs_driver = { "apecs", apecs_methods, sizeof(struct apecs_softc), }; #define APECS_SGMAP_BASE (8*1024*1024) #define APECS_SGMAP_SIZE (8*1024*1024) static void apecs_sgmap_invalidate(void) { alpha_mb(); REGVAL(EPIC_TBIA) = 0; alpha_mb(); } static void apecs_sgmap_map(void *arg, vm_offset_t ba, vm_offset_t pa) { u_int64_t *sgtable = arg; int index = alpha_btop(ba - APECS_SGMAP_BASE); if (pa) { if (pa > (1L<<32)) panic("apecs_sgmap_map: can't map address 0x%lx", pa); sgtable[index] = ((pa >> 13) << 1) | 1; } else { sgtable[index] = 0; } alpha_mb(); apecs_sgmap_invalidate(); } static void apecs_init_sgmap(void) { void *sgtable; /* * First setup Window 0 to map 8Mb to 16Mb with an * sgmap. Allocate the map aligned to a 32 boundary. */ REGVAL(EPIC_PCI_BASE_1) = APECS_SGMAP_BASE | EPIC_PCI_BASE_SGEN | EPIC_PCI_BASE_WENB; alpha_mb(); REGVAL(EPIC_PCI_MASK_1) = EPIC_PCI_MASK_8M; alpha_mb(); sgtable = contigmalloc(8192, M_DEVBUF, M_NOWAIT, 0, (1L<<34), 32*1024, (1L<<34)); if (!sgtable) panic("apecs_init_sgmap: can't allocate page table"); REGVAL(EPIC_TBASE_1) = (pmap_kextract((vm_offset_t) sgtable) >> EPIC_TBASE_SHIFT); chipset.sgmap = sgmap_map_create(APECS_SGMAP_BASE, APECS_SGMAP_BASE + APECS_SGMAP_SIZE, apecs_sgmap_map, sgtable); } void apecs_init() { static int initted = 0; if (initted) return; initted = 1; chipset = apecs_swiz_chipset; if (platform.pci_intr_init) platform.pci_intr_init(); } static int apecs_probe(device_t dev) { int memwidth; if (apecs0) return ENXIO; apecs0 = dev; memwidth = (REGVAL(COMANCHE_GCR) & COMANCHE_GCR_WIDEMEM) != 0 ? 128 : 64; if(memwidth == 64){ device_set_desc(dev, "DECchip 21071 Core Logic chipset"); } else { device_set_desc(dev, "DECchip 21072 Core Logic chipset"); } apecs_hae_mem = REGVAL(EPIC_HAXR1); pci_init_resources(); isa_init_intr(); apecs_init_sgmap(); device_add_child(dev, "pcib", 0); return 0; } static int apecs_attach(device_t dev) { struct apecs_softc* sc = APECS_SOFTC(dev); apecs_init(); sc->dmem_base = APECS_PCI_DENSE; sc->smem_base = APECS_PCI_SPARSE; sc->io_base = APECS_PCI_SIO; sc->cfg0_base = KV(APECS_PCI_CONF); sc->cfg1_base = NULL; set_iointr(alpha_dispatch_intr); snprintf(chipset_type, sizeof(chipset_type), "apecs"); chipset_bwx = 0; chipset_ports = APECS_PCI_SIO; chipset_memory = APECS_PCI_SPARSE; chipset_dense = APECS_PCI_DENSE; chipset_hae_mask = EPIC_HAXR1_EADDR; bus_generic_attach(dev); return 0; } static struct resource * apecs_alloc_resource(device_t bus, device_t child, int type, int *rid, u_long start, u_long end, u_long count, u_int flags) { if ((hwrpb->rpb_type == ST_DEC_2100_A50) && (type == SYS_RES_IRQ)) return isa_alloc_intr(bus, child, start); else return pci_alloc_resource(bus, child, type, rid, start, end, count, flags); } static int apecs_release_resource(device_t bus, device_t child, int type, int rid, struct resource *r) { if ((hwrpb->rpb_type == ST_DEC_2100_A50) && (type == SYS_RES_IRQ)) return isa_release_intr(bus, child, r); else return pci_release_resource(bus, child, type, rid, r); } static int apecs_setup_intr(device_t dev, device_t child, struct resource *irq, int flags, driver_intr_t *intr, void *arg, void **cookiep) { int error; /* * the avanti routes interrupts through the isa interrupt * controller, so we need to special case it */ if(hwrpb->rpb_type == ST_DEC_2100_A50) return isa_setup_intr(dev, child, irq, flags, intr, arg, cookiep); error = rman_activate_resource(irq); if (error) return error; error = alpha_setup_intr(0x900 + (irq->r_start << 4), intr, arg, cookiep, &intrcnt[INTRCNT_EB64PLUS_IRQ + irq->r_start]); if (error) return error; /* Enable PCI interrupt */ platform.pci_intr_enable(irq->r_start); device_printf(child, "interrupting at APECS irq %d\n", (int) irq->r_start); return 0; } static int apecs_teardown_intr(device_t dev, device_t child, struct resource *irq, void *cookie) { /* * the avanti routes interrupts through the isa interrupt * controller, so we need to special case it */ if(hwrpb->rpb_type == ST_DEC_2100_A50) return isa_teardown_intr(dev, child, irq, cookie); alpha_teardown_intr(cookie); return rman_deactivate_resource(irq); } DRIVER_MODULE(apecs, root, apecs_driver, apecs_devclass, 0, 0);