Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use rbus_new_root_share() instead of rbus_new_root_delegate().

This commit is contained in:
haya 2000-05-30 09:26:19 +00:00
parent e4217da6d0
commit 03c4724943
1 changed files with 32 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
sys/arch/i386/i386/rbus_machdep.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: rbus_machdep.c,v 1.2 1999/10/15 06:43:06 haya Exp $ */
/* $NetBSD: rbus_machdep.c,v 1.3 2000/05/30 09:26:19 haya Exp $ */
/*
* Copyright (c) 1999
@ -30,10 +30,11 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/* $Id: rbus_machdep.c,v 1.2 1999/10/15 06:43:06 haya Exp $ */
/* $Id: rbus_machdep.c,v 1.3 2000/05/30 09:26:19 haya Exp $ */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/extent.h>
#include <vm/vm.h>
#include <vm/vm_kern.h>
@ -122,41 +123,48 @@ _i386_memio_unmap(t, bsh, size, adrp)
/**********************************************************************
/*
* rbus_tag_t rbus_fakeparent_mem(struct pci_attach_args *pa)
*
* This function allocates a memory space from 1 GB to 1.25 GB.
**********************************************************************/
* This function makes an rbus tag for memory space. This rbus tag
* shares the all memory region of ex_iomem.
*/
rbus_tag_t
rbus_pccbb_parent_mem(pa)
struct pci_attach_args *pa;
struct pci_attach_args *pa;
{
bus_addr_t start = 0x40000000; /* 1 GB */
bus_size_t size = 0x08000000; /* 128 MB */
bus_space_handle_t memh; /* fake */
bus_addr_t start, offset;
bus_size_t size;
extern struct extent *iomem_ex;
start += pa->pa_function * size;
start = iomem_ex->ex_start;
if (start < 0x40000000) {
start = 0x40000000; /* 1GB */
}
/*
* XXX: unfortunately, iomem_ex cannot be used for the dynamic
* bus_space allocatoin. There are some hidden memory (or
* some obstacles which do not recognised by the kernel) in
* the region governed by iomem_ex. So I decide to use only
* very high address region.
*/
size = iomem_ex->ex_end - start;
offset = 0;
bus_space_map(pa->pa_memt, start, size, 0, &memh);
return rbus_new_root_delegate(pa->pa_memt, start, size, 0);
return rbus_new_root_share(pa->pa_memt, iomem_ex, start, size, 0);
}
/**********************************************************************
/*
* rbus_tag_t rbus_pccbb_parent_io(struct pci_attach_args *pa)
**********************************************************************/
*/
rbus_tag_t
rbus_pccbb_parent_io(pa)
struct pci_attach_args *pa;
struct pci_attach_args *pa;
{
bus_addr_t start = 0x2000;
bus_size_t size = 0x0800;
bus_space_handle_t ioh;
extern struct extent *ioport_ex;
bus_addr_t start = 0x2000;
bus_size_t size = 0x1000;
start += pa->pa_function * size;
bus_space_map(pa->pa_iot, start, size, 0, &ioh);
return rbus_new_root_delegate(pa->pa_iot, start, size, 0);
return rbus_new_root_share(pa->pa_iot, ioport_ex, start, size, 0);
}