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Programming Interface Information:
This information is NOT
intended to be
used as Programming Interfaces of VM/ESA. It is to be used for diagnosis only. |
PCSBK
Cross Reference (Contains links to field and bit definitions)
PCSBK Prolog
NAME : HCPPCSBK
DESCRIPTION: PROCESSOR CONTROLLER STATUS BLOCK
DSECT : PCSBK
FUNCTION : THIS CONTROL BLOCK RECORDS ALL COMMUNICATION STATUS
BETWEEN CP AND THE PROCESSOR CONTROLLER. THE REAL
PROCESSOR CONTROLLER REQUEST STATUS IS STRICTLY
MAINTAINED BY THE PROCESSING SUPPORT MODULE HCPPCR.
LOCATED BY : SYSPCSBK ANCHOR FIELD IN HCPSYSCM
CREATED BY : HCPPCR ALLOCATED AND INITIALIZED WHEN REAL PROCESSOR
CONTROLLER REQUEST PROCESS IS FIRST INVOKED.
DELETED BY : NEVER DELETED
PCSBK Control Block Content
PCSBK DSECT
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure PCSBK PROCESSOR CONTROLLER STATUS BLOCK 0000 0 Address 4 PCSPCRQ POINTER TO FIRST PCRBK IN PC QUEUE 0004 4 Address 4 PCSACTIV ADDRESS OF PROCESSOR CONTROLLER DATA BLOCK SENT IN DIAGNOSE INST. 0008 8 Address 4 PCSREQBK ADDRESS OF ACTIVE PCRBK 000C 12 Address 4 PCSTIADD ADDRESS OF TRQBK USED FOR PC TIMER INTERVAL 0010 16 Bitstring 1 PCSRQFLG PROCESSOR CONTROLLER REQUEST FLAG NOTES : ONLY THE CONDITION CODE 2 (PSWCOND2) DEFINITION IS USED BY PCSDIAGC. 00000000 PCSRQNON X'00' NO VALID REQUESTS MADE YET 00000001 PCSRQFST X'01' FIRST VALID REQUEST 000000FF PCSRQPST X'FF' PAST FIRST VALID REQUEST 0011 17 Bitstring 1 PCSICC CONDITION CODE RESULTING FROM PC INTERFACE INSTRUCTION 11.. .... PSWASMSK X'C0' ADDRESS SPACE CONTROL MASK 11.. .... PSWHMODE X'C0' HOME-SPACE MODE 1... .... PSWSMODE X'80' SECONDARY MODE .1.. .... PSWAMODE X'40' ACCESS-REGISTER MODE ..11 .... PSWCOND X'30' PSW CONDITION CODE ..1. .... PSWCOND2 X'20' PSW CONDITION CODE BIT FOR CC=2,3 ...1 .... PSWCOND1 X'10' PSW CONDITION CODE BIT FOR CC=1,3 .... 1111 PSWPMSK X'0F' FIXO+DECO+EXUN+SIGN PROGRAM MASK .... 1... PSWFIXO X'08' FIXED-PT OVERFLOW INTRPT MASK .... .1.. PSWDECO X'04' DECIMAL OVERFLOW INTRPT MASK .... ..1. PSWEXUN X'02' EXPONENT UNDERFLOW INTRPT MASK .... ...1 PSWSIGN X'01' SIGNIFICANCE INTERRUPT MASK .... .... PSWPMODE X'00' PRIMARY-SPACE MODE 0012 18 Bitstring 1 * Reserved for future IBM use 0013 19 Bitstring 1 PCSRPCIF REAL PROCESSOR CONTROLLER INTERFACES USED BY VM/XA FOR REAL REQUEST PROCESSING 1... .... SYSRSCIF X'80' SERVICE CALL TYPE INTERFACE .1.. .... SYSRDGIF X'40' DIAGNOSE X'80' TYPE INTERFACE 0014 20 Bitstring 1 PCSSTATS PROCESSOR CONTROLLER STATUS BITS 1... .... PCSSPDMC X'80' SERVICE PROCESSOR DAMAGE MACHINE CHECK HAS BEEN RECEIVED .1.. .... PCSLDISC X'40' PROCESSOR CONTROLLER IS LOGICALLY DISCONNECTED FROM THE SYSTEM .... ..1. PCSINOPW X'02' PC INTERRUPT HANDLER HAS OPENED A WINDOW TO ALLOW THE PC TIMER INTERRUPT TO HAVE PRIORITY OVER THE TIMEOUT INTERRUPT IN THE SITUATION WHERE THEY ARE BOTH RECEIVED AT THE SAME TIME .... ...1 PCSPRVRQ X'01' ASSUMPTION IS MADE THAT THE PC IS BUSY FROM A PREVIOUS REQUEST ACTIVATED PRIOR TO THE IPL OF THIS SYSTEM 0015 21 Bitstring 1 PCSSTATE STATE(S) OF THE ACTIVE REQUEST 1... .... PCSXPEND X'80' EXTERNAL INTERRUPT PENDING (PROCESSOR CONTROLLER WILL SIGNAL COMPLETION) .1.. .... PCSRSREQ X'40' ACTIVE REQUEST IS FOR A VIRTUAL SYSTEM WHICH HAS BEEN RESET ..1. .... PCSTOUT X'20' TIMER INTERVAL HAS EXPIRED FOR ACTIVE REQUEST 0016 22 Bitstring 2 * RESERVED BY IBM FOR FUTURE USE 0018 24 Dbl-Word 8 * RESERVED FOR FUTURE IBM USE 0020 32 Dbl-Word 8 PCSIOCPL (0) DOUBLE IOCP LOCKS 0020 32 Address 4 PCSIOCPW IOCP WRITE LOCK (BASE ADDRESS OF VMDBK CONFIGURATION ISSUING AN IOCP WRITE REQUEST) 0024 36 Address 4 PCSIOCPR IOCP READ LOCK (BASE ADDRESS OF VMDBK CONFIGURATION ISSUING AN IOCP READ REQUEST) 0028 40 Dbl-Word 8 * RESERVED FOR FUTURE IBM USE 0030 48 Bitstring 1 PCSDSIVL INDICATES WHEN A QUEUED REQUEST TO WRITE TO IOCDS DATASET HAS BEEN ACTIVATED AND THE DATA SET IS NOW OPEN (INVALID) 00000010 PCRIOCPW X'10' IOCP OPEN WRITE REQUEST STARTED; WHEN THIS REQUEST IS ACTIVATED SEND A MESSAGE THAT THAT THE IOCDS DATA SET WILL BE ALTERED (MARKED INVALID) 00000000 PCRNODS X'00' FLAG TO SHOW THAT NO IOCDS DATASET IS CURRENTLY BEING ALTERED NOTES : CODES DEFINED FOR PCRRPCIF BY HCPSYSCM SYSRPCIF 0031 49 Bitstring 1 PCSDSLVL DATASET LEVEL USED DURING AN IOCP READ OR WRITE SEQUENCE 0032 50 Bitstring 2 * RESERVED BY IBM FOR FUTURE USE 0034 52 Signed 4 * RESERVED BY IBM FOR FUTURE USE 00000007 PCSSIZE (*-PCSBK+7)/8 :SIZE OF BLOCK IN DOUBLEWORDS
PCSBK Storage Layout
*** PCSBK - PROCESSOR CONTROLLER STATUS BLOCK * * +---------------------------+---------------------------+ * 0 | PCSPCRQ | PCSACTIV | * +---------------------------+---------------------------+ * 8 | PCSREQBK | PCSTIADD | * +------+------+------+------+------+------+-------------+ * 10 |:RQFLG|PCSICC|//////|:RPCIF|:STATS|:STATE|/////////////| * +------+------+------+------+------+------+-------------+ * 18 |///////////////////////////////////////////////////////| * +---------------------------+---------------------------+ * 20 | PCSIOCPW | PCSIOCPR | * +---------------------------+---------------------------+ * 28 |///////////////////////////////////////////////////////| * +------+------+-------------+---------------------------+ * 30 |:DSIVL|:DSLVL|/////////////|///////////////////////////| * +------+------+-------------+---------------------------+ * 38 * *** PCSBK - PROCESSOR CONTROLLER STATUS BLOCK
PCSBK Cross Reference
(contains links to field and bit definitions)Symbol Dspl Value -------------- ---- -----PCRIOCPW 0030 00000010
PCRNODS 0030 00000000
PCSACTIV 0004
PCSDSIVL 0030
PCSDSLVL 0031
PCSICC 0011
PCSINOPW 0014 02
PCSIOCPL 0020
PCSIOCPR 0024
PCSIOCPW 0020
PCSLDISC 0014 40
PCSPCRQ 0000
PCSPRVRQ 0014 01
PCSREQBK 0008
PCSRPCIF 0013
PCSRQFLG 0010
PCSRQFST 0010 00000001
PCSRQNON 0010 00000000
PCSRQPST 0010 000000FF
PCSRSREQ 0015 40
PCSSIZE 0034 00000007
PCSSPDMC 0014 80
PCSSTATE 0015
PCSSTATS 0014
PCSTIADD 000C
PCSTOUT 0015 20
PCSXPEND 0015 80
PSWAMODE 0011 40
PSWASMSK 0011 C0
PSWCOND 0011 30
PSWCOND1 0011 10
PSWCOND2 0011 20
PSWDECO 0011 04
PSWEXUN 0011 02
PSWFIXO 0011 08
PSWHMODE 0011 C0
PSWPMODE 0011 00
PSWPMSK 0011 0F
PSWSIGN 0011 01
PSWSMODE 0011 80
SYSRDGIF 0013 40
SYSRSCIF 0013 80
Last updated on 3 Aug 1999 at 12:20:59 EDT.
Copyright IBM Corporation, 1990, 1999