MFi386: revision 1.656

  Add the machine-specific definitions for configuring the new physical
  memory allocator.

  Set the size of phys_avail[] and dump_avail[] using one of these
  definitions.

1 files changed, 7 insertions, 1 deletions

diff --git a/sys/pc98/pc98/machdep.c b/sys/pc98/pc98/machdep.c
index 1e5f6cf..0ef1291 100644
--- a/sys/pc98/pc98/machdep.c
+++ b/sys/pc98/pc98/machdep.c
@@ -186,7 +186,13 @@ static void freebsd4_sendsig(sig_t catcher, ksiginfo_t *, sigset_t *mask);
 long Maxmem = 0;
 long realmem = 0;
 
-#define PHYSMAP_SIZE	(2 * 16)
+/*
+ * The number of PHYSMAP entries must be one less than the number of
+ * PHYSSEG entries because the PHYSMAP entry that spans the largest
+ * physical address that is accessible by ISA DMA is split into two
+ * PHYSSEG entries.
+ */
+#define	PHYSMAP_SIZE	(2 * (VM_PHYSSEG_MAX - 1))
 
 vm_paddr_t phys_avail[PHYSMAP_SIZE + 2];
 vm_paddr_t dump_avail[PHYSMAP_SIZE + 2];