diff options
| author | Dale Rahn <drahn@cvs.openbsd.org> | 2001-09-15 21:23:53 +0000 |
|---|---|---|
| committer | Dale Rahn <drahn@cvs.openbsd.org> | 2001-09-15 21:23:53 +0000 |
| commit | 4b641cc89ec35c9acf6d74eea6218bc4e4686ee5 (patch) | |
| tree | 8593318c9689d1318b2a3cb142e451676663091f /sys/arch | |
| parent | 1b74d91209f02f8f5f0280a7a1d1fbd8a7df1afb (diff) | |
Two changes here.
Verify that regions which were allocated by stealing are not returned
to phys_map, perhaps before phys_map is initialized. Not seen
to be a problem, but is potentially.
Also, the system can deal with not having the devices mapped with BATs.
In fact after some testing the systems seem more stable when BATs are
not used for devices. Stop using them, at least for now.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/macppc/macppc/machdep.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sys/arch/macppc/macppc/machdep.c b/sys/arch/macppc/macppc/machdep.c index b41cfd7e0ee..5a9ada1f655 100644 --- a/sys/arch/macppc/macppc/machdep.c +++ b/sys/arch/macppc/macppc/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.4 2001/09/12 05:28:42 pvalchev Exp $ */ +/* $OpenBSD: machdep.c,v 1.5 2001/09/15 21:23:52 drahn Exp $ */ /* $NetBSD: machdep.c,v 1.4 1996/10/16 19:33:11 ws Exp $ */ /* @@ -231,6 +231,7 @@ where = 3; battable[0].batl = BATL(0x00000000, BAT_M); battable[0].batu = BATU(0x00000000); +#if 0 battable[0x8].batl = BATL(0x80000000, BAT_I); battable[0x8].batu = BATU(0x80000000); battable[0x9].batl = BATL(0x90000000, BAT_I); @@ -238,6 +239,7 @@ where = 3; battable[0xa].batl = BATL(0xa0000000, BAT_I); battable[0xa].batu = BATU(0xa0000000); segment8_a_mapped = 1; +#endif /* * Now setup fixed bat registers @@ -1164,7 +1166,12 @@ bus_space_unmap(t, bsh, size) off = bsh - sva; len = size+off; - uvm_km_free_wakeup(phys_map, sva, len); + if (ppc_malloc_ok && + ((sva >= VM_MIN_KERNEL_ADDRESS) && (sva < VM_MAX_KERNEL_ADDRESS)) ) + { + /* do not free memory which was stolen from the vm system */ + uvm_km_free(phys_map, sva, len); + } #if 0 pmap_extract(pmap_kernel(), sva, &bpa); if (extent_free(devio_ex, bpa, size, EX_NOWAIT | |