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