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Implement bus_space_subregion(). Identical to i386.

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Approved by: re (carte blanc)
This commit is contained in:
Marcel Moolenaar 2002-11-29 20:14:03 +00:00
parent ddc6d86ca3
commit 4ea25f94be
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=107395
1 changed files with 8 additions and 3 deletions
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11
sys/ia64/include/bus.h
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@ -131,9 +131,14 @@ void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh,
* Get a new handle for a subregion of an already-mapped area of bus space.
*/
int bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
bus_size_t offset, bus_size_t size,
bus_space_handle_t *nbshp);
static __inline int
bus_space_subregion(bus_space_tag_t t, bus_space_handle_t bsh,
bus_size_t offset, bus_size_t size,
bus_space_handle_t *nbshp)
{
*nbshp = bsh + offset;
return (0);
}
/*
* Allocate a region of memory that is accessible to devices in bus space.