[haiku-commits] r37200 - in haiku/trunk: headers/os/kernel src/system/kernel/vm
- From: ingo_weinhold@xxxxxx
- To: haiku-commits@xxxxxxxxxxxxx
- Date: Mon, 21 Jun 2010 18:46:19 +0200 (CEST)
Author: bonefish
Date: 2010-06-21 18:46:19 +0200 (Mon, 21 Jun 2010)
New Revision: 37200
Changeset: http://dev.haiku-os.org/changeset/37200/haiku
Modified:
haiku/trunk/headers/os/kernel/OS.h
haiku/trunk/src/system/kernel/vm/vm.cpp
Log:
* Added area creation "lock" constant B_32_BIT_MEMORY for physically
contiguous memory < 4 GB.
* vm_create_anonymous_area(): Implemented support for B_LOMEM and
B_32_BIT_MEMORY.
Modified: haiku/trunk/headers/os/kernel/OS.h
===================================================================
--- haiku/trunk/headers/os/kernel/OS.h 2010-06-21 16:19:49 UTC (rev 37199)
+++ haiku/trunk/headers/os/kernel/OS.h 2010-06-21 16:46:19 UTC (rev 37200)
@@ -68,7 +68,8 @@
#define B_LAZY_LOCK 1
#define B_FULL_LOCK 2
#define B_CONTIGUOUS 3
-#define B_LOMEM 4
+#define B_LOMEM 4 /*
B_CONTIGUOUS, < 16 MB physical address */
+#define B_32_BIT_MEMORY 5 /* B_CONTIGUOUS, < 4 GB
physical address */
/* address spec for create_area(), and clone_area() */
#define B_ANY_ADDRESS 0
Modified: haiku/trunk/src/system/kernel/vm/vm.cpp
===================================================================
--- haiku/trunk/src/system/kernel/vm/vm.cpp 2010-06-21 16:19:49 UTC (rev
37199)
+++ haiku/trunk/src/system/kernel/vm/vm.cpp 2010-06-21 16:46:19 UTC (rev
37200)
@@ -1101,6 +1101,7 @@
wiring = B_CONTIGUOUS;
}
+ physical_address_restrictions stackPhysicalRestrictions;
bool doReserveMemory = false;
switch (wiring) {
case B_NO_LOCK:
@@ -1113,11 +1114,25 @@
case B_ALREADY_WIRED:
break;
case B_LOMEM:
- //case B_SLOWMEM:
- dprintf("B_LOMEM/SLOWMEM is not yet supported!\n");
- wiring = B_FULL_LOCK;
+ {
+ stackPhysicalRestrictions =
*physicalAddressRestrictions;
+ stackPhysicalRestrictions.high_address = 16 * 1024 *
1024;
+ physicalAddressRestrictions =
&stackPhysicalRestrictions;
+ wiring = B_CONTIGUOUS;
doReserveMemory = true;
break;
+ }
+ case B_32_BIT_MEMORY:
+ {
+ #if B_HAIKU_PHYSICAL_BITS > 32
+ stackPhysicalRestrictions =
*physicalAddressRestrictions;
+ stackPhysicalRestrictions.high_address =
0x100000000LL;
+ physicalAddressRestrictions =
&stackPhysicalRestrictions;
+ #endif
+ wiring = B_CONTIGUOUS;
+ doReserveMemory = true;
+ break;
+ }
default:
return B_BAD_VALUE;
}
Other related posts:
- » [haiku-commits] r37200 - in haiku/trunk: headers/os/kernel src/system/kernel/vm - ingo_weinhold
