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authorjhibbits <jhibbits@FreeBSD.org>2016-04-10 15:50:45 +0000
committerjhibbits <jhibbits@FreeBSD.org>2016-04-10 15:50:45 +0000
commit6db53037b7cb66dfa64c4503b32d55a70737e114 (patch)
tree8486a53d58c40c678d39e794b5e14a2c29c81966 /sys/powerpc
parent19c7765e37f00e2171f79cbe90f99eeda55e07c9 (diff)
downloadFreeBSD-src-6db53037b7cb66dfa64c4503b32d55a70737e114.zip
FreeBSD-src-6db53037b7cb66dfa64c4503b32d55a70737e114.tar.gz
VM_MAXUSER_ADDRESS is highest page start, not highest address.
In case a single page mapping is requested first, which might overlap the user address space, fix the device map block to the next page.
Diffstat (limited to 'sys/powerpc')
-rw-r--r--sys/powerpc/booke/pmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/powerpc/booke/pmap.c b/sys/powerpc/booke/pmap.c
index fd04ab4..42eb631 100644
--- a/sys/powerpc/booke/pmap.c
+++ b/sys/powerpc/booke/pmap.c
@@ -192,7 +192,7 @@ static tlb_entry_t tlb1[TLB1_MAXENTRIES];
/* Next free entry in the TLB1 */
static unsigned int tlb1_idx;
-static vm_offset_t tlb1_map_base = VM_MAXUSER_ADDRESS;
+static vm_offset_t tlb1_map_base = VM_MAXUSER_ADDRESS + PAGE_SIZE;
static tlbtid_t tid_alloc(struct pmap *);
static void tid_flush(tlbtid_t tid);
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