xnu-6153.11.26.tar.gz

[apple/xnu.git] / bsd / conf / param.c

diff --git a/bsd/conf/param.c b/bsd/conf/param.c
index d3d707c89b2763caadb25e8c5587d26cdc131eb1..6878221776718ee28dac88dccc113a61882a831a 100644 (file)
--- a/bsd/conf/param.c
+++ b/bsd/conf/param.c
@@ -1,15 +1,20 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
- * @APPLE_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
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
@@ -17,8 +22,8 @@
  * 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_LICENSE_HEADER_END@
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /*
  * Copyright (c) 1980, 1986, 1989, 1993
@@ -60,7 +65,6 @@
  *     @(#)param.c     8.3 (Berkeley) 8/20/94
  */
 
-#include <confdep.h>
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/socket.h>
@@ -72,52 +76,59 @@
 #include <sys/domain.h>
 #include <sys/kernel.h>
 #include <sys/quota.h>
-#include <ufs/ufs/inode.h>
 #include <miscfs/fifofs/fifo.h>
 #include <sys/shm_internal.h>
 #include <sys/aio_kern.h>
 
-struct timezone tz = { TIMEZONE, PST };
+struct  timezone tz = { .tz_minuteswest = 0, .tz_dsttime = 0 };
+
+#if CONFIG_EMBEDDED
+#define NPROC 1000          /* Account for TOTAL_CORPSES_ALLOWED by making this slightly lower than we can. */
+#define NPROC_PER_UID 950
+#else
+#define NPROC (20 + 32 * 32)
+#define NPROC_PER_UID (NPROC/2)
+#endif
+
+/* NOTE: maxproc and hard_maxproc values are subject to device specific scaling in bsd_scale_setup */
+#define HNPROC 2500     /* based on thread_max */
+int     maxproc = NPROC;
+int     maxprocperuid = NPROC_PER_UID;
+
+#if CONFIG_EMBEDDED
+int hard_maxproc = NPROC;       /* hardcoded limit -- for embedded the number of processes is limited by the ASID space */
+#else
+int hard_maxproc = HNPROC;      /* hardcoded limit */
+#endif
 
-#define        NPROC (20 + 16 * MAXUSERS)
-#define HNPROC (20 + 64 * MAXUSERS)
-int    maxproc = NPROC;
-__private_extern__ int hard_maxproc = HNPROC;  /* hardcoded limit */
 int nprocs = 0; /* XXX */
 
-#define        NTEXT (80 + NPROC / 8)                  /* actually the object cache */
-#define        NVNODE (NPROC + NTEXT + 300)
-int    desiredvnodes = NVNODE + 700;
+//#define      NTEXT (80 + NPROC / 8)                  /* actually the object cache */
+int desiredvnodes = 0;                          /* desiredvnodes is set explicitly in unix_startup.c */
+uint32_t kern_maxvnodes = 0;            /* global, to be read from the device tree */
 
 #define MAXFILES (OPEN_MAX + 2048)
-int    maxfiles = MAXFILES;
+int     maxfiles = MAXFILES;
 
-unsigned int   ncallout = 16 + 2*NPROC;
-int nmbclusters = NMBCLUSTERS;
-int    nport = NPROC / 2;
-
-#define MAXSOCKETS NMBCLUSTERS
-int    maxsockets = MAXSOCKETS;
+unsigned int    ncallout = 16 + 2 * NPROC;
+unsigned int nmbclusters = NMBCLUSTERS;
+int     nport = NPROC / 2;
 
 /*
  *  async IO (aio) configurable limits
  */
-#define AIO_MAX                                90      /* system wide limit of async IO requests */
-#define AIO_PROCESS_MAX                AIO_LISTIO_MAX  /* process limit of async IO requests */
-#define AIO_THREAD_COUNT       4       /* number of async IO worker threads created */
-int aio_max_requests = AIO_MAX;
-int aio_max_requests_per_process = AIO_PROCESS_MAX;
-int aio_worker_threads = AIO_THREAD_COUNT;
+int aio_max_requests = CONFIG_AIO_MAX;
+int aio_max_requests_per_process = CONFIG_AIO_PROCESS_MAX;
+int aio_worker_threads = CONFIG_AIO_THREAD_COUNT;
 
 /*
  * These have to be allocated somewhere; allocating
  * them here forces loader errors if this file is omitted
  * (if they've been externed everywhere else; hah!).
  */
-struct         callout *callout;
-struct cblock *cfree;
-struct cblock *cfreelist = 0;
-int    cfreecount = 0;
-struct buf *buf;
-struct domain *domains;
-
+struct  callout *callout;
+struct  cblock *cfree;
+struct  cblock *cfreelist = NULL;
+int     cfreecount = 0;
+struct  buf *buf_headers;
+struct domains_head domains = TAILQ_HEAD_INITIALIZER(domains);