From 3f1232147dcc4aa4476f5e77727173fc0e6e5174 Mon Sep 17 00:00:00 2001 From: tsutsui Date: Wed, 4 Oct 2000 16:26:43 +0000 Subject: [PATCH] Initial bus_space(9) support for news68k. From hp300. --- sys/arch/news68k/conf/files.news68k | 3 +- sys/arch/news68k/dev/hb.c | 7 +- sys/arch/news68k/dev/hbvar.h | 14 +- sys/arch/news68k/include/Makefile | 4 +- sys/arch/news68k/include/bus.h | 602 +++++++++++++++++++++++++++ sys/arch/news68k/include/cpu.h | 8 +- sys/arch/news68k/news68k/bus_space.c | 184 ++++++++ 7 files changed, 812 insertions(+), 10 deletions(-) create mode 100644 sys/arch/news68k/include/bus.h create mode 100644 sys/arch/news68k/news68k/bus_space.c diff --git a/sys/arch/news68k/conf/files.news68k b/sys/arch/news68k/conf/files.news68k index 7d74079d18f9..98948451bb64 100644 --- a/sys/arch/news68k/conf/files.news68k +++ b/sys/arch/news68k/conf/files.news68k @@ -1,4 +1,4 @@ -# $NetBSD: files.news68k,v 1.7 2000/10/03 13:49:24 tsutsui Exp $ +# $NetBSD: files.news68k,v 1.8 2000/10/04 16:26:43 tsutsui Exp $ # NEWS68K-specific configuration info @@ -13,6 +13,7 @@ device mainbus { [systype = -1] } attach mainbus at root file arch/news68k/news68k/autoconf.c +file arch/news68k/news68k/bus_space.c file arch/news68k/news68k/conf.c file arch/news68k/news68k/clock.c file arch/news68k/news68k/db_memrw.c ddb | kgdb diff --git a/sys/arch/news68k/dev/hb.c b/sys/arch/news68k/dev/hb.c index 6a53e858b412..a141916665b4 100644 --- a/sys/arch/news68k/dev/hb.c +++ b/sys/arch/news68k/dev/hb.c @@ -1,4 +1,4 @@ -/* $NetBSD: hb.c,v 1.3 2000/02/08 16:17:31 tsutsui Exp $ */ +/* $NetBSD: hb.c,v 1.4 2000/10/04 16:26:43 tsutsui Exp $ */ /*- * Copyright (C) 1999 Izumi Tsutsui. All rights reserved. @@ -31,6 +31,7 @@ #include #include +#include #include #include @@ -91,6 +92,10 @@ hb_search(parent, cf, aux) ha->ha_ipl = cf->cf_ipl; ha->ha_vect = cf->cf_vect; + /* XXX news68k Hyper-bus is not a real bus... */ + ha->ha_bust = ISIIOPA(ha->ha_address) ? + NEWS68K_BUS_SPACE_INTIO : NEWS68K_BUS_SPACE_EIO; + if ((*cf->cf_attach->ca_match)(parent, cf, ha) > 0) config_attach(parent, cf, ha, hb_print); diff --git a/sys/arch/news68k/dev/hbvar.h b/sys/arch/news68k/dev/hbvar.h index 0648076a5a5c..7c3349c44e5c 100644 --- a/sys/arch/news68k/dev/hbvar.h +++ b/sys/arch/news68k/dev/hbvar.h @@ -1,4 +1,4 @@ -/* $NetBSD: hbvar.h,v 1.2 2000/02/08 16:17:31 tsutsui Exp $ */ +/* $NetBSD: hbvar.h,v 1.3 2000/10/04 16:26:43 tsutsui Exp $ */ /*- * Copyright (C) 1999 Izumi Tsutsui. All rights reserved. @@ -26,6 +26,8 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ +#include + /* Shorthand for locators. */ #include "locators.h" #define cf_addr cf_loc[HBCF_ADDR] @@ -36,10 +38,12 @@ * Structure used to attach hb devices. */ struct hb_attach_args { - char *ha_name; /* name of device */ - u_long ha_address; /* device address */ - int ha_ipl; /* interrupt level */ - int ha_vect; /* interrupt vector */ + char *ha_name; /* name of device */ + bus_space_tag_t ha_bust; /* bus space tag */ + bus_addr_t ha_address; /* device address */ + bus_size_t ha_size; /* device space */ + int ha_ipl; /* interrupt level */ + int ha_vect; /* interrupt vector */ }; void hb_intr_establish __P((int, int (*)(void *), int, void *)); diff --git a/sys/arch/news68k/include/Makefile b/sys/arch/news68k/include/Makefile index 2d3b0cf29353..12f4eda9793f 100644 --- a/sys/arch/news68k/include/Makefile +++ b/sys/arch/news68k/include/Makefile @@ -1,9 +1,9 @@ -# $NetBSD: Makefile,v 1.5 2000/06/26 15:42:51 kleink Exp $ +# $NetBSD: Makefile,v 1.6 2000/10/04 16:26:43 tsutsui Exp $ KDIR= /sys/arch/news68k/include INCSDIR= /usr/include/news68k -INCS= ansi.h aout_machdep.h asm.h autoconf.h bswap.h cdefs.h cpu.h \ +INCS= ansi.h aout_machdep.h asm.h autoconf.h bswap.h bus.h cdefs.h cpu.h \ db_machdep.h disklabel.h elf_machdep.h endian.h endian_machdep.h \ float.h frame.h ieee.h ieeefp.h int_types.h intr.h kcore.h limits.h \ lock.h math.h param.h pcb.h pmap.h proc.h profile.h psl.h pte.h \ diff --git a/sys/arch/news68k/include/bus.h b/sys/arch/news68k/include/bus.h new file mode 100644 index 000000000000..9a82e2a11991 --- /dev/null +++ b/sys/arch/news68k/include/bus.h @@ -0,0 +1,602 @@ +/* $NetBSD: bus.h,v 1.1 2000/10/04 16:26:43 tsutsui Exp $ */ + +/*- + * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, + * NASA Ames Research Center. + * + * 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 NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +/* + * Copyright (C) 1997 Scott Reynolds. 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. 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 ``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 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. + */ + +/* bus_space(9) functions for news68k. Just taken from hp300. */ + +#ifndef _NEWS68K_BUS_H_ +#define _NEWS68K_BUS_H_ + +/* + * Values for the news68k bus space tag, not to be used directly by MI code. + */ +#define NEWS68K_BUS_SPACE_INTIO 0 /* space is intio space */ +#define NEWS68K_BUS_SPACE_EIO 1 /* space is eio space */ + +/* + * Bus address and size types + */ +typedef u_long bus_addr_t; +typedef u_long bus_size_t; + +/* + * Access methods for bus resources and address space. + */ +typedef int bus_space_tag_t; +typedef u_long bus_space_handle_t; + +/* + * int bus_space_map __P((bus_space_tag_t t, bus_addr_t addr, + * bus_size_t size, int flags, bus_space_handle_t *bshp)); + * + * Map a region of bus space. + */ + +#define BUS_SPACE_MAP_CACHEABLE 0x01 +#define BUS_SPACE_MAP_LINEAR 0x02 +#define BUS_SPACE_MAP_PREFETCHABLE 0x04 + +int bus_space_map __P((bus_space_tag_t, bus_addr_t, bus_size_t, + int, bus_space_handle_t *)); + +/* + * void bus_space_unmap __P((bus_space_tag_t t, + * bus_space_handle_t bsh, bus_size_t size)); + * + * Unmap a region of bus space. + */ + +void bus_space_unmap __P((bus_space_tag_t, bus_space_handle_t, bus_size_t)); + +/* + * int bus_space_subregion __P((bus_space_tag_t t, + * bus_space_handle_t bsh, bus_size_t offset, bus_size_t size, + * bus_space_handle_t *nbshp)); + * + * Get a new handle for a subregion of an already-mapped area of bus space. + */ + +int bus_space_subregion __P((bus_space_tag_t t, bus_space_handle_t bsh, + bus_size_t offset, bus_size_t size, bus_space_handle_t *nbshp)); + +/* + * int bus_space_alloc __P((bus_space_tag_t t, bus_addr_t, rstart, + * bus_addr_t rend, bus_size_t size, bus_size_t align, + * bus_size_t boundary, int flags, bus_addr_t *addrp, + * bus_space_handle_t *bshp)); + * + * Allocate a region of bus space. + */ + +int bus_space_alloc __P((bus_space_tag_t t, bus_addr_t rstart, + bus_addr_t rend, bus_size_t size, bus_size_t align, + bus_size_t boundary, int cacheable, bus_addr_t *addrp, + bus_space_handle_t *bshp)); + +/* + * int bus_space_free __P((bus_space_tag_t t, + * bus_space_handle_t bsh, bus_size_t size)); + * + * Free a region of bus space. + */ + +void bus_space_free __P((bus_space_tag_t t, bus_space_handle_t bsh, + bus_size_t size)); + +/* + * int news68k_bus_space_probe __P((bus_space_tag_t t, + * bus_space_handle_t bsh, bus_size_t offset, int sz)); + * + * Probe the bus at t/bsh/offset, using sz as the size of the load. + * + * This is a machine-dependent extension, and is not to be used by + * machine-independent code. + */ + +int news68k_bus_space_probe __P((bus_space_tag_t t, + bus_space_handle_t bsh, bus_size_t offset, int sz)); + +/* + * u_intN_t bus_space_read_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset)); + * + * Read a 1, 2, 4, or 8 byte quantity from bus space + * described by tag/handle/offset. + */ + +#define bus_space_read_1(t, h, o) \ + ((void) t, (*(volatile u_int8_t *)((h) + (o)))) + +#define bus_space_read_2(t, h, o) \ + ((void) t, (*(volatile u_int16_t *)((h) + (o)))) + +#define bus_space_read_4(t, h, o) \ + ((void) t, (*(volatile u_int32_t *)((h) + (o)))) + +#if 0 /* Cause a link error for bus_space_read_8 */ +#define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!! +#endif + +/* + * void bus_space_read_multi_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset, + * u_intN_t *addr, size_t count)); + * + * Read `count' 1, 2, 4, or 8 byte quantities from bus space + * described by tag/handle/offset and copy into buffer provided. + */ + +#define bus_space_read_multi_1(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movb %%a0@,%%a1@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#define bus_space_read_multi_2(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movw %%a0@,%%a1@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#define bus_space_read_multi_4(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movl %%a0@,%%a1@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#if 0 /* Cause a link error for bus_space_read_multi_8 */ +#define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!! +#endif + +/* + * void bus_space_read_region_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset, + * u_intN_t *addr, size_t count)); + * + * Read `count' 1, 2, 4, or 8 byte quantities from bus space + * described by tag/handle and starting at `offset' and copy into + * buffer provided. + */ + +#define bus_space_read_region_1(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movb %%a0@+,%%a1@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#define bus_space_read_region_2(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movw %%a0@+,%%a1@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#define bus_space_read_region_4(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movl %%a0@+,%%a1@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#if 0 /* Cause a link error for bus_space_read_region_8 */ +#define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!! +#endif + +/* + * void bus_space_write_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset, + * u_intN_t value)); + * + * Write the 1, 2, 4, or 8 byte value `value' to bus space + * described by tag/handle/offset. + */ + +#define bus_space_write_1(t, h, o, v) \ + ((void) t, ((void)(*(volatile u_int8_t *)((h) + (o)) = (v)))) + +#define bus_space_write_2(t, h, o, v) \ + ((void) t, ((void)(*(volatile u_int16_t *)((h) + (o)) = (v)))) + +#define bus_space_write_4(t, h, o, v) \ + ((void) t, ((void)(*(volatile u_int32_t *)((h) + (o)) = (v)))) + +#if 0 /* Cause a link error for bus_space_write_8 */ +#define bus_space_write_8 !!! bus_space_write_8 not implemented !!! +#endif + +/* + * void bus_space_write_multi_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset, + * const u_intN_t *addr, size_t count)); + * + * Write `count' 1, 2, 4, or 8 byte quantities from the buffer + * provided to bus space described by tag/handle/offset. + */ + +#define bus_space_write_multi_1(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movb %%a1@+,%%a0@ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#define bus_space_write_multi_2(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movw %%a1@+,%%a0@ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#define bus_space_write_multi_4(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movl %%a1@+,%%a0@ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#if 0 /* Cause a link error for bus_space_write_8 */ +#define bus_space_write_multi_8(t, h, o, a, c) \ + !!! bus_space_write_multi_8 unimplimented !!! +#endif + +/* + * void bus_space_write_region_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset, + * const u_intN_t *addr, size_t count)); + * + * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided + * to bus space described by tag/handle starting at `offset'. + */ + +#define bus_space_write_region_1(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movb %%a1@+,%%a0@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#define bus_space_write_region_2(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movw %%a1@+,%%a0@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#define bus_space_write_region_4(t, h, o, a, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%a1 ; \ + movl %2,%%d0 ; \ + 1: movl %%a1@+,%%a0@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (a), "g" (c) : \ + "%a0","%a1","%d0"); \ +} while (0) + +#if 0 /* Cause a link error for bus_space_write_region_8 */ +#define bus_space_write_region_8 \ + !!! bus_space_write_region_8 unimplemented !!! +#endif + +/* + * void bus_space_set_multi_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, + * size_t count)); + * + * Write the 1, 2, 4, or 8 byte value `val' to bus space described + * by tag/handle/offset `count' times. + */ + +#define bus_space_set_multi_1(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%d1 ; \ + movl %2,%%d0 ; \ + 1: movb %%d1,%%a0@ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "%a0","%d0","%d1"); \ +} while (0) + +#define bus_space_set_multi_2(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%d1 ; \ + movl %2,%%d0 ; \ + 1: movw %%d1,%%a0@ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "%a0","%d0","%d1"); \ +} while (0) + +#define bus_space_set_multi_4(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%d1 ; \ + movl %2,%%d0 ; \ + 1: movl %%d1,%%a0@ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "%a0","%d0","%d1"); \ +} while (0) + +#if 0 /* Cause a link error for bus_space_set_multi_8 */ +#define bus_space_set_multi_8 \ + !!! bus_space_set_multi_8 unimplemented !!! +#endif + +/* + * void bus_space_set_region_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset, u_intN_t val, + * size_t count)); + * + * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described + * by tag/handle starting at `offset'. + */ + +#define bus_space_set_region_1(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%d1 ; \ + movl %2,%%d0 ; \ + 1: movb %%d1,%%a0@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "%a0","%d0","%d1"); \ +} while (0) + +#define bus_space_set_region_2(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%d1 ; \ + movl %2,%%d0 ; \ + 1: movw %%d1,%%a0@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "%a0","%d0","%d1"); \ +} while (0) + +#define bus_space_set_region_4(t, h, o, val, c) do { \ + (void) t; \ + __asm __volatile (" \ + movl %0,%%a0 ; \ + movl %1,%%d1 ; \ + movl %2,%%d0 ; \ + 1: movl %%d1,%%a0@+ ; \ + subql #1,%%d0 ; \ + jne 1b" : \ + : \ + "r" ((h) + (o)), "g" (val), "g" (c) : \ + "%a0","%d0","%d1"); \ +} while (0) + +#if 0 /* Cause a link error for bus_space_set_region_8 */ +#define bus_space_set_region_8 \ + !!! bus_space_set_region_8 unimplemented !!! +#endif + +/* + * void bus_space_copy_region_N __P((bus_space_tag_t tag, + * bus_space_handle_t bsh1, bus_size_t off1, + * bus_space_handle_t bsh2, bus_size_t off2, + * bus_size_t count)); + * + * Copy `count' 1, 2, 4, or 8 byte values from bus space starting + * at tag/bsh1/off1 to bus space starting at tag/bsh2/off2. + */ + +#define __NEWS68K_copy_region_N(BYTES) \ +static __inline void __CONCAT(bus_space_copy_region_,BYTES) \ + __P((bus_space_tag_t, \ + bus_space_handle_t bsh1, bus_size_t off1, \ + bus_space_handle_t bsh2, bus_size_t off2, \ + bus_size_t count)); \ + \ +static __inline void \ +__CONCAT(bus_space_copy_region_,BYTES)(t, h1, o1, h2, o2, c) \ + bus_space_tag_t t; \ + bus_space_handle_t h1, h2; \ + bus_size_t o1, o2, c; \ +{ \ + bus_size_t o; \ + \ + if ((h1 + o1) >= (h2 + o2)) { \ + /* src after dest: copy forward */ \ + for (o = 0; c != 0; c--, o += BYTES) \ + __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ + __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ + } else { \ + /* dest after src: copy backwards */ \ + for (o = (c - 1) * BYTES; c != 0; c--, o -= BYTES) \ + __CONCAT(bus_space_write_,BYTES)(t, h2, o2 + o, \ + __CONCAT(bus_space_read_,BYTES)(t, h1, o1 + o)); \ + } \ +} +__NEWS68K_copy_region_N(1) +__NEWS68K_copy_region_N(2) +__NEWS68K_copy_region_N(4) +#if 0 /* Cause a link error for bus_space_copy_region_8 */ +#define bus_space_copy_region_8 \ + !!! bus_space_copy_region_8 unimplemented !!! +#endif + +#undef __NEWS68K_copy_region_N + +/* + * Bus read/write barrier methods. + * + * void bus_space_barrier __P((bus_space_tag_t tag, + * bus_space_handle_t bsh, bus_size_t offset, + * bus_size_t len, int flags)); + * + * Note: the 680x0 does not currently require barriers, but we must + * provide the flags to MI code. + */ +#define bus_space_barrier(t, h, o, l, f) \ + ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f))) +#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */ +#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */ + +#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t) + +#endif /* _NEWS68K_BUS_H_ */ diff --git a/sys/arch/news68k/include/cpu.h b/sys/arch/news68k/include/cpu.h index 2b4e59b21f0a..6c12af9bc7a0 100644 --- a/sys/arch/news68k/include/cpu.h +++ b/sys/arch/news68k/include/cpu.h @@ -1,4 +1,4 @@ -/* $NetBSD: cpu.h,v 1.5 2000/08/25 01:04:08 thorpej Exp $ */ +/* $NetBSD: cpu.h,v 1.6 2000/10/04 16:26:43 tsutsui Exp $ */ /* * Copyright (c) 1988 University of Utah. @@ -271,4 +271,10 @@ void child_return __P((void *)); #define IIOP(va) (((u_int)(va) - (u_int)intiobase) + intiobase_phys) #define IIOPOFF(pa) ((u_int)(pa) - intiobase_phys) +/* XXX EIO space mapping should be modified like hp300 XXX */ +#define EIOSIZE (extiotop_phys - extiobase_phys) +#define ISEIOVA(va) \ + ((char *)(va) >= extiobase && (char *)(va) < (char *)EIOSIZE) +#define EIOV(pa) (((u_int)(pa) - extiobase_phys) + (u_int)extiobase) + #endif /* !_NEWS68K_CPU_H_ */ diff --git a/sys/arch/news68k/news68k/bus_space.c b/sys/arch/news68k/news68k/bus_space.c new file mode 100644 index 000000000000..8403cd8b8b85 --- /dev/null +++ b/sys/arch/news68k/news68k/bus_space.c @@ -0,0 +1,184 @@ +/* $NetBSD: bus_space.c,v 1.1 2000/10/04 16:26:44 tsutsui Exp $ */ + +/*- + * Copyright (c) 1998 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe. + * + * 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 NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. + */ + +/* + * Implementation of bus_space mapping for the news68k. + * Just taken from hp300. + */ + +#include +#include +#include + +#include + +#include + +extern caddr_t extiobase; +extern int *nofault; + +/* ARGSUSED */ +int +bus_space_map(t, bpa, size, flags, bshp) + bus_space_tag_t t; + bus_addr_t bpa; + bus_size_t size; + int flags; + bus_space_handle_t *bshp; +{ + + if (t == NEWS68K_BUS_SPACE_INTIO) { + /* + * Intio space is direct-mapped in pmap_bootstrap(); just + * do the translation. + */ + *bshp = (bus_space_handle_t)IIOV(bpa); + return (0); + } + + if (t == NEWS68K_BUS_SPACE_EIO) + *bshp = (bus_space_handle_t)EIOV(bpa); + return (0); + + return (1); +} + +/* ARGSUSED */ +int +bus_space_alloc(t, rstart, rend, size, alignment, boundary, flags, + bpap, bshp) + bus_space_tag_t t; + bus_addr_t rstart, rend; + bus_size_t size, alignment, boundary; + int flags; + bus_addr_t *bpap; + bus_space_handle_t *bshp; +{ + + /* + * Not meaningful on any currently-supported news68k bus. + */ + return (EINVAL); +} + +/* ARGSUSED */ +void +bus_space_free(t, bsh, size) + bus_space_tag_t t; + bus_space_handle_t bsh; + bus_size_t size; +{ + + /* + * Not meaningful on any currently-supported news68k bus. + */ + panic("bus_space_free: shouldn't be here"); +} + +void +bus_space_unmap(t, bsh, size) + bus_space_tag_t t; + bus_space_handle_t bsh; + bus_size_t size; +{ + + if (t == NEWS68K_BUS_SPACE_INTIO) { + /* + * Intio space is direct-mapped in pmap_bootstrap(); nothing + * to do + */ + return; + } + + if (t != NEWS68K_BUS_SPACE_EIO) + panic("bus_space_map: bad space tag"); + + return; +} + +/* ARGSUSED */ +int +bus_space_subregion(t, bsh, offset, size, nbshp) + bus_space_tag_t t; + bus_space_handle_t bsh; + bus_size_t offset, size; + bus_space_handle_t *nbshp; +{ + + *nbshp = bsh + offset; + return (0); +} + +/* ARGSUSED */ +int +news68k_bus_space_probe(t, bsh, offset, sz) + bus_space_tag_t t; + bus_space_handle_t bsh; + bus_size_t offset; + int sz; +{ + label_t faultbuf; + int i; + + nofault = (int *)&faultbuf; + if (setjmp((label_t *)nofault)) { + nofault = NULL; + return (0); + } + + switch (sz) { + case 1: + i = bus_space_read_1(t, bsh, offset); + break; + + case 2: + i = bus_space_read_2(t, bsh, offset); + break; + + case 4: + i = bus_space_read_4(t, bsh, offset); + break; + + default: + panic("bus_space_probe: unupported data size %d\n", sz); + /* NOTREACHED */ + } + + nofault = NULL; + return (1); +}