osfmk/chud/i386/chud_xnu_private.h

   1 /*
   2  * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License.  The rights granted to you under the
  10  * License may not be used to create, or enable the creation or
  11  * redistribution of, unlawful or unlicensed copies of an Apple operating
  12  * system, or to circumvent, violate, or enable the circumvention or
  13  * violation of, any terms of an Apple operating system software license
  14  * agreement.
  15  *
  16  * Please obtain a copy of the License at
  17  * http://www.opensource.apple.com/apsl/ and read it before using this
  18  * file.
  19  *
  20  * The Original Code and all software distributed under the License are
  21  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  22  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  23  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  24  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  25  * Please see the License for the specific language governing rights and
  26  * limitations under the License.
  27  *
  28  * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  29  */
  30
  31 #ifndef _I386_CHUD_XNU_PRIVATE_H_
  32 #define _I386_CHUD_XNU_PRIVATE_H_
  33
  34 #include <kern/queue.h>
  35
  36 #pragma mark **** cpu timer ****
  37
  38 /*
  39  * Cross-cpu signal request entries are queued on the target cpu's
  40  * chudcpu_data_t struct. This differs from PPC because i386 doesn't
  41  * support sending arguments with cross-cpu signals. Hence we have
  42  * to do it ourselves.
  43  */
  44 typedef struct {
  45         struct queue_entry      req_entry;      /* Must be first */
  46         uint32_t                req_type;
  47         uint32_t                req_code;
  48         volatile uint32_t       req_sync;
  49 } chudcpu_signal_request_t;
  50
  51 typedef struct {
  52         void                                    *cpu_chud_fn_tablep;
  53         timer_call_data_t                       cpu_timer_call;
  54         uint64_t                                t_deadline;
  55         chudxnu_cpu_timer_callback_func_t       cpu_timer_callback_fn;
  56         mpqueue_head_t                          cpu_request_queue;
  57 } chudcpu_data_t;
  58 /* NB: cpu_chud_fn_tablep is expected to be the first member, at offset 0 */
  59
  60 extern void chudxnu_cpu_signal_handler(void);
  61
  62 #endif /* _I386_CHUD_XNU_PRIVATE_H_ */