--- /dev/null
+/* $NetBSD: param.h,v 1.13 2010/05/06 19:10:26 joerg Exp $ */\r
+\r
+/*\r
+ * Copyright (c) 1994,1995 Mark Brinicombe.\r
+ * All rights reserved.\r
+ *\r
+ * Redistribution and use in source and binary forms, with or without\r
+ * modification, are permitted provided that the following conditions\r
+ * are met:\r
+ * 1. Redistributions of source code must retain the above copyright\r
+ * notice, this list of conditions and the following disclaimer.\r
+ * 2. Redistributions in binary form must reproduce the above copyright\r
+ * notice, this list of conditions and the following disclaimer in the\r
+ * documentation and/or other materials provided with the distribution.\r
+ * 3. All advertising materials mentioning features or use of this software\r
+ * must display the following acknowledgement:\r
+ * This product includes software developed by the RiscBSD team.\r
+ * 4. The name "RiscBSD" nor the name of the author may be used to\r
+ * endorse or promote products derived from this software without specific\r
+ * prior written permission.\r
+ *\r
+ * THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED\r
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF\r
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\r
+ * IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\r
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\r
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR\r
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)\r
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT\r
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY\r
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF\r
+ * SUCH DAMAGE.\r
+ */\r
+\r
+#ifndef _AARCH64_PARAM_H_\r
+#define _AARCH64_PARAM_H_\r
+\r
+// TODO: These were based on the ARMv7 version. Verify that it is correct.\r
+\r
+/*\r
+ * Machine dependent constants for all ARM processors\r
+ */\r
+\r
+/*\r
+ * For KERNEL code:\r
+ * MACHINE must be defined by the individual port. This is so that\r
+ * uname returns the correct thing, etc.\r
+ *\r
+ * MACHINE_ARCH may be defined by individual ports as a temporary\r
+ * measure while we're finishing the conversion to ELF.\r
+ *\r
+ * For non-KERNEL code:\r
+ * If ELF, MACHINE and MACHINE_ARCH are forced to "arm/armeb".\r
+ */\r
+\r
+#if defined(_KERNEL)\r
+#undef _MACHINE\r
+#undef MACHINE\r
+#undef _MACHINE_ARCH\r
+#undef MACHINE_ARCH\r
+#define _MACHINE aarch64\r
+#define MACHINE "aarch64"\r
+#define _MACHINE_ARCH aarch64\r
+#define MACHINE_ARCH "aarch64"\r
+#endif /* !_KERNEL */\r
+\r
+#define MID_MACHINE MID_AARCH64\r
+\r
+/*\r
+ * Round p (pointer or byte index) up to a correctly-aligned value\r
+ * for all data types (int, long, ...). The result is u_int and\r
+ * must be cast to any desired pointer type.\r
+ *\r
+ * ALIGNED_POINTER is a boolean macro that checks whether an address\r
+ * is valid to fetch data elements of type t from on this architecture.\r
+ * This does not reflect the optimal alignment, just the possibility\r
+ * (within reasonable limits).\r
+ *\r
+ */\r
+#define ALIGNBYTES (sizeof(int) - 1)\r
+#define ALIGN(p) (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)\r
+#define ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0)\r
+/* ARM-specific macro to align a stack pointer (downwards). */\r
+#define STACKALIGNBYTES (8 - 1)\r
+#define STACKALIGN(p) ((u_int)(p) &~ STACKALIGNBYTES)\r
+\r
+#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */\r
+#define DEV_BSIZE (1 << DEV_BSHIFT)\r
+#define BLKDEV_IOSIZE 2048\r
+\r
+#ifndef MAXPHYS\r
+#define MAXPHYS 65536 /* max I/O transfer size */\r
+#endif\r
+\r
+/*\r
+ * Constants related to network buffer management.\r
+ * MCLBYTES must be no larger than NBPG (the software page size), and,\r
+ * on machines that exchange pages of input or output buffers with mbuf\r
+ * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple\r
+ * of the hardware page size.\r
+ */\r
+#define MSIZE 256 /* size of an mbuf */\r
+\r
+#ifndef MCLSHIFT\r
+#define MCLSHIFT 11 /* convert bytes to m_buf clusters */\r
+ /* 2K cluster can hold Ether frame */\r
+#endif /* MCLSHIFT */\r
+\r
+#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */\r
+\r
+#ifndef NMBCLUSTERS_MAX\r
+#define NMBCLUSTERS_MAX (0x2000000 / MCLBYTES) /* Limit to 64MB for clusters */\r
+#endif\r
+\r
+/*\r
+ * Compatibility /dev/zero mapping.\r
+ */\r
+#ifdef _KERNEL\r
+#ifdef COMPAT_16\r
+#define COMPAT_ZERODEV(x) (x == makedev(0, _DEV_ZERO_oARM))\r
+#endif\r
+#endif /* _KERNEL */\r
+\r
+#endif /* _AARCH64_PARAM_H_ */\r
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