diff options
| author | Martin Pieuchot <mpi@cvs.openbsd.org> | 2012-12-06 12:35:23 +0000 |
|---|---|---|
| committer | Martin Pieuchot <mpi@cvs.openbsd.org> | 2012-12-06 12:35:23 +0000 |
| commit | fbda61ad58e8dcb050be13e593b038adf3d78c3d (patch) | |
| tree | 265765896e74a7c10e309a70ebf85e6304944748 /sys/arch | |
| parent | 9c9f4fc0c31f65df26fadcfa2f2f853c34d46fab (diff) | |
Implement bus_space_mmap(9).
ok kettenis@
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/macppc/include/bus.h | 3 | ||||
| -rw-r--r-- | sys/arch/macppc/macppc/machdep.c | 19 |
2 files changed, 20 insertions, 2 deletions
diff --git a/sys/arch/macppc/include/bus.h b/sys/arch/macppc/include/bus.h index eb00af8b577..4eeec12c5f6 100644 --- a/sys/arch/macppc/include/bus.h +++ b/sys/arch/macppc/include/bus.h @@ -1,4 +1,4 @@ -/* $OpenBSD: bus.h,v 1.21 2012/08/30 18:14:26 mpi Exp $ */ +/* $OpenBSD: bus.h,v 1.22 2012/12/06 12:35:22 mpi Exp $ */ /* * Copyright (c) 1997 Per Fogelstrom. All rights reserved. @@ -76,6 +76,7 @@ int bus_space_alloc(bus_space_tag_t tag, bus_addr_t rstart, bus_space_handle_t *handlep); void bus_space_free(bus_space_tag_t tag, bus_space_handle_t handle, bus_size_t size); +paddr_t bus_space_mmap(bus_space_tag_t, bus_addr_t, off_t, int, int); #define BUS_SPACE_MAP_CACHEABLE 0x01 #define BUS_SPACE_MAP_LINEAR 0x02 diff --git a/sys/arch/macppc/macppc/machdep.c b/sys/arch/macppc/macppc/machdep.c index 0d29fc391ff..2d571cb8454 100644 --- a/sys/arch/macppc/macppc/machdep.c +++ b/sys/arch/macppc/macppc/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.134 2012/12/02 07:03:31 guenther Exp $ */ +/* $OpenBSD: machdep.c,v 1.135 2012/12/06 12:35:22 mpi Exp $ */ /* $NetBSD: machdep.c,v 1.4 1996/10/16 19:33:11 ws Exp $ */ /* @@ -1109,6 +1109,23 @@ bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size) } } +paddr_t +bus_space_mmap(bus_space_tag_t t, bus_addr_t bpa, off_t off, int prot, + int flags) +{ + int pmapflags = PMAP_NOCACHE; + + if (POWERPC_BUS_TAG_BASE(t) == 0) + return (-1); + + bpa |= POWERPC_BUS_TAG_BASE(t); + + if (flags & BUS_SPACE_MAP_CACHEABLE) + pmapflags &= ~PMAP_NOCACHE; + + return ((bpa + off) | pmapflags); +} + vaddr_t ppc_kvm_stolen = VM_KERN_ADDRESS_SIZE; int |