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Annotation of XNU/osfmk/ppc/kkt.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * The contents of this file constitute Original Code as defined in and
                      7:  * are subject to the Apple Public Source License Version 1.1 (the
                      8:  * "License").  You may not use this file except in compliance with the
                      9:  * License.  Please obtain a copy of the License at
                     10:  * http://www.apple.com/publicsource and read it before using this file.
                     11:  * 
                     12:  * This Original Code and all software distributed under the License are
                     13:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     14:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     15:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     16:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     17:  * License for the specific language governing rights and limitations
                     18:  * under the License.
                     19:  * 
                     20:  * @APPLE_LICENSE_HEADER_END@
                     21:  */
                     22: /*
                     23:  * @OSF_FREE_COPYRIGHT@
                     24:  * 
                     25:  */
                     26: 
                     27: #ifndef _PPC_KKT_H_
                     28: #define _PPC_KKT_H_
                     29: 
                     30: #include <norma_scsi.h>
                     31: #include <dipc_xkern.h>
                     32: 
                     33: #if     NORMA_SCSI
                     34: #define        splkkt  splbio
                     35: #elif   DIPC_XKERN
                     36: /*
                     37:  * With DIPC/KKT/x-kernel, the whole protocol stack 
                     38:  * is executed in thread context. Thus, splkkt results 
                     39:  * in a no-op.
                     40:  */
                     41: #include <cpus.h>
                     42: #if     NCPUS > 1
                     43: 
                     44: #if     defined(__GNUC__)
                     45: #include <kern/spl.h>
                     46: #include <ppc/cpu_number.h>
                     47: 
                     48: #warning This code has been compiled but not tested
                     49: 
                     50: extern int curr_ipl[];
                     51: extern spl_t __inline__ splkkt(void);
                     52: 
                     53: extern spl_t __inline__ splkkt(void) {
                     54:        spl_t   ss;
                     55:        disable_preemption();
                     56:        ss = (spl_t)curr_ipl[cpu_number()];
                     57:        enable_preemption();
                     58:        return  ss;
                     59: }
                     60: #else   /* __GNUC__ */
                     61: #error  Not implemented
                     62: #endif  /* __GNUC__ */
                     63: 
                     64: #else   /* NCPUS == 1 */
                     65: 
                     66: extern int curr_ipl;
                     67: #define        splkkt()        ((spl_t)curr_ipl)
                     68: 
                     69: #endif  /* NCPUS == 1 */
                     70: #endif  /* DIPC_XKERN */
                     71: 
                     72: typedef struct transport {
                     73:        struct request_block    *next;
                     74: #if    NORMA_SCSI
                     75:        void *kkte;
                     76: #else  /* NORMA_SCSI */
                     77:         vm_offset_t save_address;
                     78:         vm_size_t save_size;
                     79:         boolean_t save_sg;
                     80: #endif /* NORMA_SCSI */
                     81: } transport_t;
                     82: 
                     83: #endif  /* _PPC_KKT_H_ */

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