xnu-1228.tar.gz

[apple/xnu.git] / osfmk / chud / chud_cpu.c

diff --git a/osfmk/chud/chud_cpu.c b/osfmk/chud/chud_cpu.c
index c6c2ae0187a770ec2afd081c23bb7b18b11f3230..9652dcf92897a66b99f9a35e0ba5dd4c9d597ef1 100644 (file)
--- a/osfmk/chud/chud_cpu.c
+++ b/osfmk/chud/chud_cpu.c
@@ -1,58 +1,49 @@
 /*
- * Copyright (c) 2003-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003-2007 Apple Inc. All rights reserved.
  *
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
+ * @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 
+ * 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_LICENSE_OSREFERENCE_HEADER_END@
+ * 
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
+
+
 #include <mach/mach_types.h>
 #include <mach/mach_host.h>
 
 #include <kern/host.h>
 #include <kern/processor.h>
 #include <kern/cpu_data.h>
-
+#include <kern/machine.h>
 #include <machine/machine_routines.h>
 
 #include <chud/chud_xnu.h>
 
 #pragma mark **** cpu count ****
 
-__private_extern__ int
-chudxnu_avail_cpu_count(void)
+__private_extern__ int 
+chudxnu_logical_cpu_count(void)
 {
-    host_basic_info_data_t hinfo;
-    kern_return_t kr;
-    mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
-
-    kr = host_info(host_self(), HOST_BASIC_INFO, (integer_t *)&hinfo, &count);
-    if(kr == KERN_SUCCESS) {
-        return hinfo.avail_cpus;
-    } else {
-        return 0;
-    }
+       return machine_info.logical_cpu_max;
 }
 
 __private_extern__ int
@@ -66,29 +57,16 @@ chudxnu_phys_cpu_count(void)
     if(kr == KERN_SUCCESS) {
         return hinfo.max_cpus;
     } else {
-        return 0;
+        return 1;  // fall back to 1, 0 doesn't make sense at all
     }
 }
 
-__private_extern__
-int chudxnu_cpu_number(void)
+__private_extern__ int
+chudxnu_cpu_number(void)
 {
     return cpu_number();
 }
 
-#pragma mark **** branch trace buffer ****
-
-extern int pc_trace_buf[1024];
-
-__private_extern__ uint32_t *
-chudxnu_get_branch_trace_buffer(uint32_t *entries)
-{
-    if(entries) {
-        *entries = sizeof(pc_trace_buf)/sizeof(int);
-    }
-    return pc_trace_buf;
-}
-
 #pragma mark **** interrupts enable/disable ****
 
 __private_extern__ boolean_t
@@ -134,3 +112,13 @@ chudxnu_get_preemption_level(void)
 {
        return get_preemption_level();
 }
+
+#pragma mark *** deprecated ***
+
+//DEPRECATED
+__private_extern__ int
+chudxnu_avail_cpu_count(void)
+{
+       return machine_info.logical_cpu;
+}
+