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org-hyperion-cules/diagmssf.c
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Jan Jaeger 38dc432335 Update copyright statements to include 2003 
git-svn-id: file:///home/jj/hercules.svn/trunk@1107 956126f8-22a0-4046-8f4a-272fa8102e63
2003-01-05 12:17:12 +00:00

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/* DIAGMSSF.C (c) Copyright Jan Jaeger, 1999-2003 */
/* ESA/390 Diagnose Functions */
/*-------------------------------------------------------------------*/
/* This module implements various diagnose functions */
/* MSSF call as described in SA22-7098-0 */
/* SCPEND as described in GC19-6215-0 which is also used with PR/SM */
/* LPAR RMF interface call */
/* */
/* 04/12/1999 Jan Jaeger */
/* z/Architecture support - (c) Copyright Jan Jaeger, 1999-2003 */
/*-------------------------------------------------------------------*/
#include "hercules.h"
#include "opcode.h"
#if !defined(_DIAGMSSF_C)
#define _DIAGMSSF_C
/*-------------------------------------------------------------------*/
/* MSSF Call service processor commands */
/*-------------------------------------------------------------------*/
#define MSSF_READ_CONFIG_INFO 0x00020001
#define MSSF_READ_CHP_STATUS 0x00030001
/*-------------------------------------------------------------------*/
/* Service Processor Command Control Block */
/*-------------------------------------------------------------------*/
typedef struct _SPCCB_HEADER {
HWORD length; /* Total length of SPCCB */
BYTE resv1[4]; /* Reserved */
HWORD resp; /* Response code */
} SPCCB_HEADER;
#define SPCCB_REAS_COMPLETE 0x00
#define SPCCB_RESP_COMPLETE 0x10
#define SPCCB_REAS_CHECK 0x00
#define SPCCB_RESP_CHECK 0x40
#define SPCCB_REAS_BADLENGTH 0x01
#define SPCCB_RESP_BADLENGTH 0xF0
#define SPCCB_REAS_NOT2KALIGN 0x01
#define SPCCB_RESP_NOT2KALIGN 0x00
#define SPCCB_REAS_UNASSIGNED 0x06
#define SPCCB_RESP_UNASSIGNED 0xF0
/*-------------------------------------------------------------------*/
/* Service Processor Command Control Block */
/*-------------------------------------------------------------------*/
typedef struct _SPCCB_CONFIG_INFO {
BYTE totstori; /* Total number of installed
storage increments. */
BYTE storisiz; /* Storage increment size in
units of one megabyte. */
BYTE hex04; /* This field contains the
value of 04 hex. */
BYTE hex01; /* This field contains the
value of either 01 hex or
02 hex. */
FWORD reserved; /* Reserved. */
HWORD toticpu; /* Total number of installed
CPUs. This number also
specifies the total number
of entries in the CPU-
description list. */
HWORD officpu; /* Offset in the SPCCB to the
first entry in the CPU-
description list. */
HWORD tothsa; /* Total number of machine-
storage areas reserved for
the requesting
configuration. This number
also specifies the total
number of entries in the
machine-storage-area-
description list. */
HWORD offhsa; /* Offset in the SPCCB to the
first entry in the
machine-storage-area-
description list. */
BYTE loadparm[8]; /* Load parameter. This field
conains eight bytes of
EBCDIC information specified
by the operator for the
manually initiated load
function. If the operator
specifies fewer then eight
characters, they are left-
justified and padded on the
right with 40 hex (preferred),
or F0 hex, or 00 hex to
form an eight byte load
parameter. If the operator
does not specify a load
parameter, a default load
parameter is formed,
consisting of F1 hex (preferred),
or 40 hex, or 00 hex, padded
on the right with 40 hex
(preferred), or F0 hex, of
00 hex. The load parameter
is set to this default value
by the activation of the
system-reset-clear key or by
performing certain operator
functions. */
} SPCCB_CONFIG_INFO;
typedef struct _SPCCB_CPU_INFO {
BYTE cpuaddr; /* Rightmost eight bits of the
CPU address */
BYTE todid; /* Identity of the TOD clock
accessed by this CPU */
} SPCCB_CPU_INFO;
typedef struct _SPCCB_HSA_INFO {
BYTE hsasize; /* Bits 1-15 of this field
specify the size of the
area in units of 4K bytes
or 32K bytes. When bit 0
of byte 0 is zero, the
size is in units of 32K
bytes; otherwise, the
size is in units of 4K
bytes. */
BYTE hsaaddr; /* Absolute address of the
start of the machine-
storage area. */
} SPCCB_HSA_INFO;
typedef struct _SPCCB_CHP_STATUS {
BYTE installed[32]; /* Installed-channel-path bit
map. */
BYTE assigned[32]; /* Assigned-channel-path bit
map. */
BYTE configured[32]; /* Configured-channel-path bit
map. */
BYTE reserved[152]; /* Reserved. */
} SPCCB_CHP_STATUS;
typedef struct _DIAG204_HDR {
BYTE numpart; /* Number of partitions */
BYTE flags; /* Flag Byte */
#define DIAG204_PHYSICAL_PRESENT 0x80
HWORD resv; /* Unknown , 0 on 2003,
0x0005 under VM */
HWORD physcpu; /* Number of phys CP's */
HWORD offown; /* Offset to own partition */
DWORD diagstck; /* TOD of last diag204 */
} DIAG204_HDR;
typedef struct _DIAG204_PART {
BYTE partnum; /* Logical partition number
starts with 1 */
BYTE virtcpu; /* Number of virt CP's */
HWORD resv1[3];
BYTE partname[8]; /* Partition name */
} DIAG204_PART;
typedef struct _DIAG204_PART_CPU {
HWORD cpaddr; /* CP address */
HWORD resv2[2];
HWORD relshare; /* Relative share */
DWORD totdispatch; /* Total dispatch time */
DWORD effdispatch; /* Effective dispatch time */
} DIAG204_PART_CPU;
#endif /*!defined(_DIAGMSSF_C)*/
/*-------------------------------------------------------------------*/
/* Process SCPEND call (Function code 0x044) */
/*-------------------------------------------------------------------*/
void ARCH_DEP(scpend_call) (void)
{
usleep(1L); /* Just go to the dispatcher
for a minimum delay */
} /* end function scpend_call */
#ifdef FEATURE_MSSF_CALL
/*-------------------------------------------------------------------*/
/* Process MSSF call (Function code 0x080) */
/*-------------------------------------------------------------------*/
int ARCH_DEP(mssf_call) (int r1, int r2, REGS *regs)
{
U32 spccb_absolute_addr; /* Absolute addr of SPCCB */
U32 mssf_command; /* MSSF command word */
U32 spccblen; /* Length of SPCCB */
SPCCB_HEADER *spccb; /* -> SPCCB header */
SPCCB_CONFIG_INFO *spccbconfig; /* -> SPCCB CONFIG info */
SPCCB_CPU_INFO *spccbcpu; /* -> SPCCB CPU information */
SPCCB_CHP_STATUS *spccbchp; /* -> SPCCB channel path info */
U16 offset; /* Offset from start of SPCCB */
int i; /* loop counter */
DEVBLK *dev; /* Device block pointer */
/* R1 contains the real address of the SPCCB */
spccb_absolute_addr = APPLY_PREFIXING (regs->GR_L(r1), regs->PX);
/* R2 contains the service-processor-command word */
mssf_command = regs->GR_L(r2);
/* Program check if SPCCB is not on a doubleword boundary */
if ( spccb_absolute_addr & 0x00000007 )
ARCH_DEP(program_interrupt) (regs, PGM_SPECIFICATION_EXCEPTION);
/* Program check if SPCCB is outside main storage */
if ( spccb_absolute_addr > regs->mainlim )
ARCH_DEP(program_interrupt) (regs, PGM_ADDRESSING_EXCEPTION);
// /*debug*/logmsg("MSSF call %8.8X SPCCB=%8.8X\n",
// /*debug*/ mssf_command, spccb_absolute_addr);
/* Point to Service Processor Command Control Block */
spccb = (SPCCB_HEADER*)(regs->mainstor + spccb_absolute_addr);
/* Load SPCCB length from header */
FETCH_HW(spccblen,spccb->length);
/* Mark page referenced */
STORAGE_KEY(spccb_absolute_addr, regs) |= STORKEY_REF;
/* Program check if end of SPCCB falls outside main storage */
if ( sysblk.mainsize - spccblen < spccb_absolute_addr )
ARCH_DEP(program_interrupt) (regs, PGM_ADDRESSING_EXCEPTION);
/* Obtain the interrupt lock */
obtain_lock (&sysblk.intlock);
/* If a service signal is pending then we cannot process the request */
if( IS_IC_SERVSIG && (sysblk.servparm & SERVSIG_ADDR)) {
release_lock (&sysblk.intlock);
return 2; /* Service Processor Busy */
}
if( spccb_absolute_addr & 0x7ffff800 ) {
spccb->resp[0] = SPCCB_REAS_NOT2KALIGN;
spccb->resp[1] = SPCCB_RESP_NOT2KALIGN;
} else
/* Test MSSF command word */
switch (mssf_command) {
case MSSF_READ_CONFIG_INFO:
/* Set response code X'01F0' if SPCCB length
is insufficient to contain CONFIG info */
if ( spccblen < 64 )
{
spccb->resp[0] = SPCCB_REAS_BADLENGTH;
spccb->resp[1] = SPCCB_RESP_BADLENGTH;
break;
}
/* Point to SPCCB data area following SPCCB header */
spccbconfig = (SPCCB_CONFIG_INFO*)(spccb+1);
memset (spccbconfig, 0, sizeof(SPCCB_CONFIG_INFO));
/* Set main storage size in SPCCB */
spccbconfig->totstori = sysblk.mainsize >> 20;
spccbconfig->storisiz = 1;
spccbconfig->hex04 = 0x04;
spccbconfig->hex01 = 0x01;
/* Set CPU array count and offset in SPCCB */
#ifdef _FEATURE_CPU_RECONFIG
STORE_HW(spccbconfig->toticpu,MAX_CPU_ENGINES);
#else /*!_FEATURE_CPU_RECONFIG*/
STORE_HW(spccbconfig->toticpu,sysblk.numcpu);
#endif /*!_FEATURE_CPU_RECONFIG*/
offset = sizeof(SPCCB_HEADER) + sizeof(SPCCB_CONFIG_INFO);
STORE_HW(spccbconfig->officpu,offset);
/* Set HSA array count and offset in SPCCB */
STORE_HW(spccbconfig->tothsa,0);
#ifdef _FEATURE_CPU_RECONFIG
offset += sizeof(SPCCB_CPU_INFO) * MAX_CPU_ENGINES;
#else /*!_FEATURE_CPU_RECONFIG*/
offset += sizeof(SPCCB_CPU_INFO) * sysblk.numcpu;
#endif /*!_FEATURE_CPU_RECONFIG*/
STORE_HW(spccbconfig->offhsa,offset);
/* Move IPL load parameter to SPCCB */
memcpy (spccbconfig->loadparm, sysblk.loadparm, 8);
/* Build the CPU information array after the SCP info */
spccbcpu = (SPCCB_CPU_INFO*)(spccbconfig+1);
#ifdef _FEATURE_CPU_RECONFIG
for (i = 0; i < MAX_CPU_ENGINES; i++, spccbcpu++)
#else /*!_FEATURE_CPU_RECONFIG*/
for (i = 0; i < sysblk.numcpu; i++, spccbcpu++)
#endif /*!_FEATURE_CPU_RECONFIG*/
{
memset (spccbcpu, 0, sizeof(SPCCB_CPU_INFO));
spccbcpu->cpuaddr = sysblk.regs[i].cpuad;
spccbcpu->todid = 0;
}
/* Set response code X'0010' in SPCCB header */
spccb->resp[0] = SPCCB_REAS_COMPLETE;
spccb->resp[1] = SPCCB_RESP_COMPLETE;
break;
case MSSF_READ_CHP_STATUS:
/* Set response code X'0300' if SPCCB length
is insufficient to contain channel path info */
if ( spccblen < sizeof(SPCCB_HEADER) + sizeof(SPCCB_CHP_STATUS))
{
spccb->resp[0] = SPCCB_REAS_BADLENGTH;
spccb->resp[1] = SPCCB_RESP_BADLENGTH;
break;
}
/* Point to SPCCB data area following SPCCB header */
spccbchp = (SPCCB_CHP_STATUS*)(spccb+1);
memset (spccbchp, 0, sizeof(SPCCB_CHP_STATUS));
/* Identify CHPIDs used */
for (dev = sysblk.firstdev; dev != NULL; dev = dev->nextdev) {
spccbchp->installed[dev->devnum >> 11] |= 0x80 >> ((dev->devnum >> 8) & 7);
spccbchp->assigned[dev->devnum >> 11] |= 0x80 >> ((dev->devnum >> 8) & 7);
spccbchp->configured[dev->devnum >> 11] |= 0x80 >> ((dev->devnum >> 8) & 7);
}
/* Set response code X'0010' in SPCCB header */
spccb->resp[0] = SPCCB_REAS_COMPLETE;
spccb->resp[1] = SPCCB_RESP_COMPLETE;
break;
default:
/* Set response code X'06F0' for invalid MSSF command */
spccb->resp[0] = SPCCB_REAS_UNASSIGNED;
spccb->resp[1] = SPCCB_RESP_UNASSIGNED;
break;
} /* end switch(mssf_command) */
/* Mark page changed */
STORAGE_KEY(spccb_absolute_addr, regs) |= STORKEY_CHANGE;
/* Set service signal external interrupt pending */
sysblk.servparm &= ~SERVSIG_ADDR;
sysblk.servparm |= spccb_absolute_addr;
ON_IC_SERVSIG;
/* Release the interrupt lock */
release_lock (&sysblk.intlock);
/* Return condition code 0: Command initiated */
return 0;
} /* end function mssf_call */
#endif /* FEATURE_MSSF_CALL */
/*-------------------------------------------------------------------*/
/* Process LPAR DIAG 204 call */
/*-------------------------------------------------------------------*/
void ARCH_DEP(diag204_call) (int r1, int r2, REGS *regs)
{
DIAG204_HDR *hdrinfo; /* Header */
DIAG204_PART *partinfo; /* Partition info */
DIAG204_PART_CPU *cpuinfo; /* CPU info */
RADR abs; /* abs addr of data area */
U64 dreg; /* work doubleword */
U32 i; /* loop counter */
struct rusage usage; /* RMF type data */
static char lparname[] = "HERCULES";
static char physical[] = "PHYSICAL";
static U64 diag204tod; /* last diag204 tod */
abs = APPLY_PREFIXING (regs->GR(r1), regs->PX);
/* Program check if RMF data is not on a page boundary */
if ( (abs & PAGEFRAME_BYTEMASK) != 0x000)
ARCH_DEP(program_interrupt) (regs, PGM_SPECIFICATION_EXCEPTION);
/* Program check if RMF data area is outside main storage */
if ( abs > regs->mainlim )
ARCH_DEP(program_interrupt) (regs, PGM_ADDRESSING_EXCEPTION);
/* Test DIAG204 command word */
switch (regs->GR_L(r2)) {
case 0x04:
/* Obtain the TOD clock update lock */
obtain_lock (&sysblk.todlock);
/* Update the TOD clock */
update_TOD_clock();
/* save last diag204 tod */
dreg = diag204tod;
/* Retrieve the TOD clock value and shift out the epoch */
diag204tod = (sysblk.todclk + regs->todoffset) << 8;
/* Release the TOD clock update lock */
release_lock (&sysblk.todlock);
/* Point to DIAG 204 data area */
hdrinfo = (DIAG204_HDR*)(regs->mainstor + abs);
/* Mark page referenced */
STORAGE_KEY(abs, regs) |= STORKEY_REF | STORKEY_CHANGE;
memset(hdrinfo, 0, sizeof(DIAG204_HDR));
hdrinfo->numpart = 1;
hdrinfo->flags = DIAG204_PHYSICAL_PRESENT;
STORE_HW(hdrinfo->physcpu,sysblk.numcpu);
STORE_HW(hdrinfo->offown,sizeof(DIAG204_HDR));
STORE_DW(hdrinfo->diagstck,dreg);
/* hercules partition */
partinfo = (DIAG204_PART*)(hdrinfo + 1);
memset(partinfo, 0, sizeof(DIAG204_PART));
partinfo->partnum = 1;
partinfo->virtcpu = sysblk.numcpu;
for(i = 0; i < sizeof(partinfo->partname); i++)
partinfo->partname[i] = host_to_guest((int)lparname[i]);
/* hercules cpu's */
getrusage(RUSAGE_SELF,&usage);
cpuinfo = (DIAG204_PART_CPU*)(partinfo + 1);
#ifdef _FEATURE_CPU_RECONFIG
for(i = 0; i < MAX_CPU_ENGINES;i++)
if(sysblk.regs[i].cpuonline)
#else /*!_FEATURE_CPU_RECONFIG*/
for(i = 0; i < sysblk.numcpu;i++)
#endif /*!_FEATURE_CPU_RECONFIG*/
{
memset(cpuinfo, 0, sizeof(DIAG204_PART_CPU));
STORE_HW(cpuinfo->cpaddr,sysblk.regs[i].cpuad);
STORE_HW(cpuinfo->relshare,100);
dreg = (U64)(usage.ru_utime.tv_sec + usage.ru_stime.tv_sec) / sysblk.numcpu;
dreg = dreg * 1000000 + (i ? 0 : usage.ru_utime.tv_usec + usage.ru_stime.tv_usec);
dreg <<= 12;
STORE_DW(cpuinfo->totdispatch,dreg);
dreg = (U64)(usage.ru_utime.tv_sec) / sysblk.numcpu;
dreg = dreg * 1000000 + (i ? 0 : usage.ru_utime.tv_usec );
dreg <<= 12;
STORE_DW(cpuinfo->effdispatch,dreg);
cpuinfo += 1;
}
/* lpar management */
getrusage(RUSAGE_CHILDREN,&usage);
partinfo = (DIAG204_PART*)cpuinfo;
memset(partinfo, 0, sizeof(DIAG204_PART));
partinfo->partnum = 0;
partinfo->virtcpu = 1;
for(i = 0; i < sizeof(partinfo->partname); i++)
partinfo->partname[i] = host_to_guest((int)physical[i]);
cpuinfo = (DIAG204_PART_CPU*)(partinfo + 1);
memset(cpuinfo, 0, sizeof(DIAG204_PART_CPU));
// STORE_HW(cpuinfo->cpaddr,0);
dreg = (U64)(usage.ru_utime.tv_sec + usage.ru_stime.tv_sec) / sysblk.numcpu;
dreg = dreg * 1000000 + (i ? 0 : usage.ru_utime.tv_usec + usage.ru_stime.tv_usec);
dreg <<= 12;
STORE_DW(cpuinfo->totdispatch,dreg);
// cpuinfo->effdispatch = 0;
regs->GR_L(r2) = 0;
break;
default:
regs->GR_L(r2) = 4;
} /*switch(regs->GR_L(r2))*/
} /* end function diag204_call */
#if !defined(_GEN_ARCH)
#if defined(_ARCHMODE2)
#define _GEN_ARCH _ARCHMODE2
#include "diagmssf.c"
#endif
#if defined(_ARCHMODE3)
#undef _GEN_ARCH
#define _GEN_ARCH _ARCHMODE3
#include "diagmssf.c"
#endif
#endif /*!defined(_GEN_ARCH)*/
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