xnu-1456.1.26.tar.gz

[apple/xnu.git] / osfmk / mach / ppc / vm_param.h

diff --git a/osfmk/mach/ppc/vm_param.h b/osfmk/mach/ppc/vm_param.h
index e011515820df1505fdb102bbbd3711890e6136cc..ae7238f01efdaca8cd48c6e89b429a9a886fe0a4 100644 (file)
--- a/osfmk/mach/ppc/vm_param.h
+++ b/osfmk/mach/ppc/vm_param.h
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
@@ -20,35 +23,78 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * @OSF_COPYRIGHT@
  */
+
 #ifndef        _MACH_PPC_VM_PARAM_H_
 #define _MACH_PPC_VM_PARAM_H_
 
-#define BYTE_SIZE      8       /* byte size in bits */
+/*
+ * These are the global definitions
+ */
 
-#define PPC_PGBYTES    4096    /* bytes per ppc page */
-#define PPC_PGSHIFT    12      /* number of bits to shift for pages */
+#define BYTE_SIZE              8               /* byte size in bits */
 
-#define VM_MIN_ADDRESS ((vm_offset_t) 0)
-#define VM_MAX_ADDRESS ((vm_offset_t) 0xfffff000U)
+#define PPC_PGBYTES            4096    /* bytes per ppc page */
+#define PPC_PGSHIFT            12              /* number of bits to shift for pages */
 
-#define VM_MIN_KERNEL_ADDRESS  ((vm_offset_t) 0x00001000)
+#define        PAGE_SIZE               PPC_PGBYTES
+#define        PAGE_SHIFT              PPC_PGSHIFT
+#define PAGE_MASK              (PAGE_SIZE - 1)
 
-/* We map the kernel using only SR0,SR1,SR2,SR3 leaving segments alone */
-#define VM_MAX_KERNEL_ADDRESS  ((vm_offset_t) 0x3fffffff)
+#if 0
+#define VM_MAX_PAGE_ADDRESS 0xFFFFFFFFFFFFF000ULL
+#else
+/* 
+ * LP64todo - For now, we are limited to 51-bits of user addressing
+ */
+#define VM_MAX_PAGE_ADDRESS 0x0007FFFFFFFFF000ULL
+#endif
 
-#define USER_STACK_END  ((vm_offset_t) 0xffff0000U)
+#define MACH_VM_MIN_ADDRESS    ((mach_vm_offset_t) 0)
+#define MACH_VM_MAX_ADDRESS    ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS)
 
-#define ppc_round_page(x)      ((((unsigned)(x)) + PPC_PGBYTES - 1) & \
-                                       ~(PPC_PGBYTES-1))
-#define ppc_trunc_page(x)      (((unsigned)(x)) & ~(PPC_PGBYTES-1))
+/*
+ * These are the values relative to the local process.
+ */
+#if defined (__ppc64__)
+/*
+ * LP64todo - We don't have the 64-bit address space layout yet.
+ * Use the 32-bit stack layout for now.
+ */
+#define VM_MIN_ADDRESS ((vm_offset_t) MACH_VM_MIN_ADDRESS)
+#define VM_MAX_ADDRESS ((vm_offset_t) MACH_VM_MAX_ADDRESS)
+#define USER_STACK_END         ((vm_offset_t) 0x00000000ffff0000ULL)
+#else
+#define VM_MIN_ADDRESS ((vm_offset_t) 0)
+#define VM_MAX_ADDRESS ((vm_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
+#define USER_STACK_END         ((vm_offset_t) 0xffff0000U)
+#endif /* defined(__ppc64__) */
 
+#ifdef KERNEL_PRIVATE
 
-#define KERNEL_STACK_SIZE      (4 * PPC_PGBYTES)
+/* Kernel-wide values */
+#define VM_MIN_KERNEL_ADDRESS  ((vm_offset_t) 0x00001000U)
+#define VM_MIN_KERNEL_AND_KEXT_ADDRESS VM_MIN_KERNEL_ADDRESS
+#define VM_MAX_KERNEL_ADDRESS  ((vm_offset_t) 0xDFFFFFFFU)
+#define KERNEL_STACK_SIZE              (4 * PPC_PGBYTES)
 #define INTSTACK_SIZE          (5 * PPC_PGBYTES)
 
-#endif /* _PPC_VM_PARAM_H_ */
+#define VM_MAP_MIN_ADDRESS     MACH_VM_MIN_ADDRESS
+#define VM_MAP_MAX_ADDRESS     MACH_VM_MAX_ADDRESS
+
+#ifdef MACH_KERNEL_PRIVATE
+
+/* For implementing legacy 32-bit interfaces */
+#define VM32_SUPPORT           1
+#define VM32_MIN_ADDRESS       ((vm32_offset_t) 0)
+#define VM32_MAX_ADDRESS       ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
+
+#endif /* MACH_KERNEL_PRIVATE */
+
+#endif /* KERNEL_PRIVATE */
+
+#endif /* _MACH_PPC_VM_PARAM_H_ */