diff options
| author | Thordur I. Bjornsson <thib@cvs.openbsd.org> | 2010-06-27 03:03:50 +0000 |
|---|---|---|
| committer | Thordur I. Bjornsson <thib@cvs.openbsd.org> | 2010-06-27 03:03:50 +0000 |
| commit | 8a46d785199bcae03d0469a55b99e08fe33263fa (patch) | |
| tree | 9b784b445528b5c78da12077fd065ae9030cf6d7 /sys/arch/hppa | |
| parent | b109c783d06f4af76ff573fa020fbe9d1d855f7b (diff) | |
uvm constraints. Add two mandatory MD symbols, uvm_md_constraints
which contains the constraints for DMA/memory allocation for each
architecture, and dma_constraints which contains the range of addresses
that are dma accessable by the system.
This is based on ariane@'s physcontig diff, with lots of bugfixes and
additions the following additions by my self:
Introduce a new function pool_set_constraints() which sets the address
range for which we allocate pages for the pool from, this is now used
for the mbuf/mbuf cluster pools to keep them dma accessible.
The !direct archs no longer stuff pages into the kernel object in
uvm_km_getpage_pla but rather do a pmap_extract() in uvm_km_putpages.
Tested heavily by my self on i386, amd64 and sparc64. Some tests on
alpha and SGI.
"commit it" beck, art, oga, deraadt
"i like the diff" deraadt
Diffstat (limited to 'sys/arch/hppa')
| -rw-r--r-- | sys/arch/hppa/hppa/machdep.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/arch/hppa/hppa/machdep.c b/sys/arch/hppa/hppa/machdep.c index c2a74de56ea..2cc6fe47640 100644 --- a/sys/arch/hppa/hppa/machdep.c +++ b/sys/arch/hppa/hppa/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.188 2010/06/27 00:04:44 jsing Exp $ */ +/* $OpenBSD: machdep.c,v 1.189 2010/06/27 03:03:48 thib Exp $ */ /* * Copyright (c) 1999-2003 Michael Shalayeff @@ -202,6 +202,9 @@ pid_t sigpid = 0; #define SDB_FOLLOW 0x01 #endif +struct uvm_constraint_range dma_constraint = { 0x0, (paddr_t)-1 }; +struct uvm_constraint_range *uvm_md_constraints[] = { NULL }; + /* * Whatever CPU types we support */ |