From b69358e4ca42b573ab00c4f1748526b5679ceb66 Mon Sep 17 00:00:00 2001 From: thorpej Date: Sun, 11 Jan 1998 21:26:04 +0000 Subject: [PATCH] bus.h for the hp300 port. Only supports bus_space for now. --- sys/arch/hp300/include/bus.h | 597 +++++++++++++++++++++++++++++++++++ 1 file changed, 597 insertions(+) create mode 100644 sys/arch/hp300/include/bus.h diff --git a/sys/arch/hp300/include/bus.h b/sys/arch/hp300/include/bus.h new file mode 100644 index 000000000000..781716370235 --- /dev/null +++ b/sys/arch/hp300/include/bus.h @@ -0,0 +1,597 @@ +/* $NetBSD: bus.h,v 1.1 1998/01/11 21:26:04 thorpej 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. + */ + +#ifndef _HP300_BUS_H_ +#define _HP300_BUS_H_ + +/* + * Values for the hp300 bus space tag, not to be used directly by MI code. + */ +#define HP300_BUS_SPACE_INTIO 0 /* space is intio space */ +#define HP300_BUS_SPACE_DIO 1 /* space is dio 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 + +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 hp300_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 hp300_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 __HP300_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)); \ + } \ +} +__HP300_copy_region_N(1) +__HP300_copy_region_N(2) +__HP300_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 __HP300_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 */ + +#endif /* _HP300_BUS_H_ */