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authorMiod Vallat <miod@cvs.openbsd.org>2006-05-25 22:42:23 +0000
committerMiod Vallat <miod@cvs.openbsd.org>2006-05-25 22:42:23 +0000
commite54e9ace7dbdc620235ae69b728fdeea69bca5d3 (patch)
tree964bd2305b7d097b63aa599e179707d3f5f3e9c6 /sys/uvm/uvm_glue.c
parentccd6dc55e4ee96262a9111c415f98a7053500a38 (diff)
Enable optional specific handling of the u-area in pmap via PMAP_UAREA if
defined; from NetBSD. Currently only used on xscale arm to use the mini data cache for u area mappings instead of the main data cache.
Diffstat (limited to 'sys/uvm/uvm_glue.c')
-rw-r--r--sys/uvm/uvm_glue.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/uvm/uvm_glue.c b/sys/uvm/uvm_glue.c
index 9ac9098ed85..c7bfa5e21ab 100644
--- a/sys/uvm/uvm_glue.c
+++ b/sys/uvm/uvm_glue.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: uvm_glue.c,v 1.43 2005/11/01 14:18:14 aaron Exp $ */
+/* $OpenBSD: uvm_glue.c,v 1.44 2006/05/25 22:42:22 miod Exp $ */
/* $NetBSD: uvm_glue.c,v 1.44 2001/02/06 19:54:44 eeh Exp $ */
/*
@@ -276,6 +276,11 @@ uvm_fork(p1, p2, shared, stack, stacksize, func, arg)
if (rv != KERN_SUCCESS)
panic("uvm_fork: uvm_fault_wire failed: %d", rv);
+#ifdef PMAP_UAREA
+ /* Tell the pmap this is a u-area mapping */
+ PMAP_UAREA((vaddr_t)up);
+#endif
+
/*
* p_stats currently points at a field in the user struct. Copy
* parts of p_stats, and zero out the rest.