[src/trunk]: src/sys/uvm Add uvm_km_valloc_prefer_wait(). Used to valloc wit...

[jeffs <jeffs%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/5764e67950d5
branches:  trunk
changeset: 495247:5764e67950d5
user:      jeffs <jeffs%NetBSD.org@localhost>
date:      Mon Jul 24 20:10:51 2000 +0000

description:
Add uvm_km_valloc_prefer_wait().  Used to valloc with the passed in
voff_t being passed to PMAP_PREFER(), which results in the propper
virtual alignment of the allocated space.

diffstat:

 sys/uvm/uvm_extern.h |   4 +++-
 sys/uvm/uvm_km.c     |  17 +++++++++++++----
 2 files changed, 16 insertions(+), 5 deletions(-)

diffs (67 lines):

diff -r b4cc83bbe000 -r 5764e67950d5 sys/uvm/uvm_extern.h
--- a/sys/uvm/uvm_extern.h      Mon Jul 24 20:09:15 2000 +0000
+++ b/sys/uvm/uvm_extern.h      Mon Jul 24 20:10:51 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_extern.h,v 1.45 2000/06/27 16:16:43 mrg Exp $      */
+/*     $NetBSD: uvm_extern.h,v 1.46 2000/07/24 20:10:51 jeffs Exp $    */
 
 /*
  *
@@ -453,6 +453,8 @@
                                boolean_t, vm_map_t));
 vaddr_t                        uvm_km_valloc __P((vm_map_t, vsize_t));
 vaddr_t                        uvm_km_valloc_wait __P((vm_map_t, vsize_t));
+vaddr_t                        uvm_km_valloc_prefer_wait __P((vm_map_t, vsize_t,
+                                       voff_t));
 vaddr_t                        uvm_km_alloc_poolpage1 __P((vm_map_t,
                                struct uvm_object *, boolean_t));
 void                   uvm_km_free_poolpage1 __P((vm_map_t, vaddr_t));
diff -r b4cc83bbe000 -r 5764e67950d5 sys/uvm/uvm_km.c
--- a/sys/uvm/uvm_km.c  Mon Jul 24 20:09:15 2000 +0000
+++ b/sys/uvm/uvm_km.c  Mon Jul 24 20:10:51 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_km.c,v 1.37 2000/06/27 17:29:24 mrg Exp $  */
+/*     $NetBSD: uvm_km.c,v 1.38 2000/07/24 20:10:53 jeffs Exp $        */
 
 /* 
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -806,12 +806,13 @@
  */
 
 vaddr_t
-uvm_km_valloc_wait(map, size)
+uvm_km_valloc_prefer_wait(map, size, prefer)
        vm_map_t map;
        vsize_t size;
+       voff_t prefer;
 {
        vaddr_t kva;
-       UVMHIST_FUNC("uvm_km_valloc_wait"); UVMHIST_CALLED(maphist);
+       UVMHIST_FUNC("uvm_km_valloc_prefer_wait"); UVMHIST_CALLED(maphist);
 
        UVMHIST_LOG(maphist, "(map=0x%x, size=0x%x)", map, size, 0,0);
 
@@ -833,7 +834,7 @@
                 */
 
                if (__predict_true(uvm_map(map, &kva, size, uvm.kernel_object,
-                   UVM_UNKNOWN_OFFSET, UVM_MAPFLAG(UVM_PROT_ALL,
+                   prefer, UVM_MAPFLAG(UVM_PROT_ALL,
                    UVM_PROT_ALL, UVM_INH_NONE, UVM_ADV_RANDOM, 0))
                    == KERN_SUCCESS)) {
                        UVMHIST_LOG(maphist,"<- done (kva=0x%x)", kva,0,0,0);
@@ -850,6 +851,14 @@
        /*NOTREACHED*/
 }
 
+vaddr_t
+uvm_km_valloc_wait(map, size)
+       vm_map_t map;
+       vsize_t size;
+{
+       return uvm_km_valloc_prefer_wait(map, size, UVM_UNKNOWN_OFFSET);
+}
+
 /* Sanity; must specify both or none. */
 #if (defined(PMAP_MAP_POOLPAGE) || defined(PMAP_UNMAP_POOLPAGE)) && \
     (!defined(PMAP_MAP_POOLPAGE) || !defined(PMAP_UNMAP_POOLPAGE))