xnu-792.22.5.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)
index 0000000..01d431f
--- /dev/null
+++ b/osfmk/chud/chud_memory.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2003-2004 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ * 
+ * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_OSREFERENCE_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);
+}