xnu-792.24.17.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 459bbfd247f7598afd051036dcbb25988dfd83af..7a8a1ca8434aea4b8c341198fd2f931cfe34f794 100644 (file)
--- a/osfmk/mach/ppc/vm_param.h
+++ b/osfmk/mach/ppc/vm_param.h
@@ -1,5 +1,6 @@
+
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
@@ -22,30 +23,72 @@
 /*
  * @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 BYTE_SIZE              8               /* byte size in bits */
+
+#define PPC_PGBYTES            4096    /* bytes per ppc page */
+#define PPC_PGSHIFT            12              /* number of bits to shift for pages */
+
+#define        PAGE_SIZE               PPC_PGBYTES
+#define        PAGE_SHIFT              PPC_PGSHIFT
+#define PAGE_MASK              (PAGE_SIZE - 1)
+
+#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 PPC_PGBYTES    4096    /* bytes per ppc page */
-#define PPC_PGSHIFT    12      /* number of bits to shift for pages */
+#define MACH_VM_MIN_ADDRESS    ((mach_vm_offset_t) 0)
+#define MACH_VM_MAX_ADDRESS    ((mach_vm_offset_t) VM_MAX_PAGE_ADDRESS)
 
+/*
+ * 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) 0xfffff000U)
+#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
 
+/* Kernel-wide values */
 #define VM_MIN_KERNEL_ADDRESS  ((vm_offset_t) 0x00001000)
+#define VM_MAX_KERNEL_ADDRESS  ((vm_offset_t) 0xDFFFFFFF)
+#define KERNEL_STACK_SIZE              (4 * PPC_PGBYTES)
+#define INTSTACK_SIZE          (5 * PPC_PGBYTES)
 
-/* We map the kernel using only SR0,SR1,SR2,SR3 leaving segments alone */
-#define VM_MAX_KERNEL_ADDRESS  ((vm_offset_t) 0x3fffffff)
+#define VM_MAP_MIN_ADDRESS     MACH_VM_MIN_ADDRESS
+#define VM_MAP_MAX_ADDRESS     MACH_VM_MAX_ADDRESS
 
-#define USER_STACK_END  ((vm_offset_t) 0xffff0000U)
+#ifdef MACH_KERNEL_PRIVATE
 
-#define ppc_round_page(x)      ((((unsigned)(x)) + PPC_PGBYTES - 1) & \
-                                       ~(PPC_PGBYTES-1))
-#define ppc_trunc_page(x)      (((unsigned)(x)) & ~(PPC_PGBYTES-1))
+/* For implementing legacy 32-bit interfaces */
+#define VM32_SUPPORT
+#define VM32_MIN_ADDRESS       ((vm32_offset_t) 0)
+#define VM32_MAX_ADDRESS       ((vm32_offset_t) (VM_MAX_PAGE_ADDRESS & 0xFFFFFFFF))
 
+#endif /* MACH_KERNEL_PRIVATE */
 
-#define KERNEL_STACK_SIZE      (4 * PPC_PGBYTES)
-#define INTSTACK_SIZE          (5 * PPC_PGBYTES)
+#endif /* KERNEL_PRIVATE */
 
-#endif /* _PPC_VM_PARAM_H_ */
+#endif /* _MACH_PPC_VM_PARAM_H_ */