xnu-792.10.96.tar.gz

[apple/xnu.git] / osfmk / chud / chud_memory.c

diff --git a/osfmk/chud/chud_memory.c b/osfmk/chud/chud_memory.c
new file mode 100644 (file)
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--- /dev/null
+++ b/osfmk/chud/chud_memory.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2003-2004 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ *
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <mach/vm_param.h>
+#include <chud/chud_xnu.h>
+#include <machine/machine_routines.h>
+
+extern unsigned int IODefaultCacheBits(addr64_t pa);
+extern unsigned int vm_page_free_count;
+
+__private_extern__
+uint64_t chudxnu_avail_memory_size(void)
+{
+    return max_mem;
+}
+
+__private_extern__
+uint64_t chudxnu_phys_memory_size(void)
+{
+    return mem_actual;
+}
+
+/* 
+ * This function is not intended to be valid for any amount of time,
+ * it is just an instantaneous snapshot of the current free memory size.
+ */
+__private_extern__
+uint64_t chudxnu_free_memory_size(void)
+{
+    return (uint64_t)vm_page_free_count * (uint64_t)page_size;
+}
+
+__private_extern__
+vm_offset_t chudxnu_io_map(uint64_t phys_addr, vm_size_t size)
+{
+    return ml_io_map(phys_addr, size); // XXXXX limited to first 2GB XXXXX
+}
+
+__private_extern__
+uint32_t chudxnu_phys_addr_wimg(uint64_t phys_addr)
+{
+    return IODefaultCacheBits(phys_addr);
+}