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Annotation of researchv9/sys/sun3/pcb.h, revision 1.1.1.1

1.1       root        1: /*     @(#)pcb.h 1.1 86/02/03 SMI      */
                      2: 
                      3: /*
                      4:  * Copyright (c) 1985 by Sun Microsystems, Inc.
                      5:  */
                      6: 
                      7: /*
                      8:  * Sun software process control block
                      9:  */
                     10: 
                     11: #ifndef LOCORE
                     12: struct pcb {
                     13:        label_t pcb_regs;       /* saved registers */
                     14:        int     pcb_sr;         /* program status word */
                     15:        struct  pte *pcb_p0br;  /* pseudo-P0BR for Sun */
                     16:        int     pcb_p0lr;       /* pseudo-P0LR for Sun */
                     17:        struct  pte *pcb_p1br;  /* pseudo-P1BR for Sun */
                     18:        int     pcb_p1lr;       /* pseudo-P1LR for Sun */
                     19:        int     pcb_szpt;       /* number of pages of user page table */
                     20:        int     *pcb_sswap;
                     21: };
                     22: #endif
                     23: 
                     24: #define        AST_SCHED       0x80000000      /* force a reschedule */
                     25: #define        AST_STEP        0x40000000      /* force a single step */
                     26: #define        TRACE_USER      0x20000000      /* user has requested tracing */
                     27: #define        TRACE_AST       0x10000000      /* AST has requested tracing */
                     28: #define        TRACE_PENDING   0x08000000      /* trace caught in supervisor mode */
                     29: #define        AST_CLR         0xf8000000
                     30: #define        PME_CLR         0
                     31: #define        AST_NONE        0
                     32: 
                     33: #define        aston()         {u.u_pcb.pcb_p0lr |= AST_SCHED;}

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