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Implement generic bus probe function.

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This commit is contained in:
pk 1998-03-28 19:44:08 +00:00
parent d725b1a332
commit 89444e9309
1 changed files with 32 additions and 3 deletions
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35
sys/arch/sparc/sparc/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.107 1998/03/24 10:00:14 pk Exp $ */ /* $NetBSD: machdep.c,v 1.108 1998/03/28 19:44:08 pk Exp $ */
/*- /*-
* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc. * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@ -1862,9 +1862,10 @@ sparc_bus_unmap(cookie, bh, size)
bus_space_handle_t bh; bus_space_handle_t bh;
bus_size_t size; bus_size_t size;
{ {
vm_offset_t vaddr = (vm_offset_t)bh; vm_offset_t va = trunc_page((vm_offset_t)bh);
vm_offset_t endva = va + round_page(size);
pmap_remove(pmap_kernel(), vaddr, vaddr + size); pmap_remove(pmap_kernel(), va, endva);
return (0); return (0);
} }
@ -1878,6 +1879,34 @@ sparc_bus_mmap(cookie, iospace, paddr, flags)
return (paddr | PMAP_IOENC(iospace) | PMAP_NC); return (paddr | PMAP_IOENC(iospace) | PMAP_NC);
} }
/*
* Establish a temporary bus mapping for device probing.
*/
int
bus_space_probe(tag, btype, paddr, size, offset, flags, callback, arg)
bus_space_tag_t tag;
bus_type_t btype;
bus_addr_t paddr;
bus_size_t size;
size_t offset;
int flags;
int (*callback) __P((void *, void *));
void *arg;
{
bus_space_handle_t bh;
caddr_t tmp;
int result;
if (bus_space_map2(tag, btype, paddr, size, flags, TMPMAP_VA, &bh) != 0)
return (0);
tmp = (caddr_t)bh;
result = (probeget(tmp + offset, size) != -1);
if (result && callback != NULL)
result = (*callback)(tmp, arg);
bus_space_unmap(tag, bh, size);
return (result);
}
static void *sparc_mainbus_intr_establish __P(( static void *sparc_mainbus_intr_establish __P((
void *, /*cookie*/ void *, /*cookie*/