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authorYang Zhang <yang.z.zhang@intel.com>2015-08-28 09:58:54 +0800
committerYang Zhang <yang.z.zhang@intel.com>2015-09-01 12:44:00 +0800
commite44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch)
tree66b09f592c55df2878107a468a91d21506104d3f /qemu/roms/SLOF/slof/fs/available.fs
parent9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff)
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5 Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/roms/SLOF/slof/fs/available.fs')
-rw-r--r--qemu/roms/SLOF/slof/fs/available.fs72
1 files changed, 72 insertions, 0 deletions
diff --git a/qemu/roms/SLOF/slof/fs/available.fs b/qemu/roms/SLOF/slof/fs/available.fs
new file mode 100644
index 000000000..5eb8fa93a
--- /dev/null
+++ b/qemu/roms/SLOF/slof/fs/available.fs
@@ -0,0 +1,72 @@
+\ *****************************************************************************
+\ * Copyright (c) 2004, 2008 IBM Corporation
+\ * All rights reserved.
+\ * This program and the accompanying materials
+\ * are made available under the terms of the BSD License
+\ * which accompanies this distribution, and is available at
+\ * http://www.opensource.org/licenses/bsd-license.php
+\ *
+\ * Contributors:
+\ * IBM Corporation - initial implementation
+\ ****************************************************************************/
+
+VARIABLE chosen-memory-ih 0 chosen-memory-ih !
+
+\ +
+\ Maintain "available" property.
+\ Sun has a single memory node with "available" property
+\ and separate memory controller nodes.
+\ We corespond memory nodes with their respective memory controllers
+\ and use /chosen/memory as default memory node to hold the "available" map
+\ NOTE -> /chosen/memory is expected 2B initialized before using claim/release
+\ +
+
+: (chosen-memory-ph) ( -- phandle )
+ chosen-memory-ih @ ?dup 0= IF
+ s" memory" get-chosen IF
+ decode-int nip nip dup chosen-memory-ih !
+ ihandle>phandle
+ ELSE 0 THEN
+ ELSE ihandle>phandle THEN
+;
+
+: (set-available-prop) ( prop plen -- )
+ s" available"
+ (chosen-memory-ph) ?dup 0<> IF set-property ELSE
+ cr ." Can't find chosen memory node - "
+ ." no available property created" cr
+ 2dup 2dup
+ THEN
+;
+
+: update-available-property ( available-ptr -- )
+ dup >r available>size@
+ 0= r@ available AVAILABLE-SIZE /available * + >= or IF
+ available r> available - encode-bytes (set-available-prop)
+ ELSE
+ r> /available + RECURSE
+ THEN
+;
+
+: update-available-property available update-available-property ;
+
+\ \\\\\\\\\\\\\\ Exported Interface:
+\ +
+\ IEEE 1275 implementation:
+\ claim
+\ Claim the region with given start address and size (if align parameter is 0);
+\ alternatively claim any region of given alignment
+\ +
+\ Throw an exception if failed
+\ +
+: claim ( [ addr ] len align -- base ) claim update-available-property ;
+
+\ +
+\ IEEE 1275 implementation:
+\ release
+\ Free the region with given start address and size
+\ +
+: release ( addr len -- ) release update-available-property ;
+
+update-available-property
+