// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Performance counter support for POWER5 ( not POWER5 + + ) processors .
*
* Copyright 2009 Paul Mackerras , IBM Corporation .
*/
#include <linux/kernel.h>
#include <linux/perf_event.h>
#include <linux/string.h>
#include <asm /reg.h>
#include <asm /cputable.h>
#include "internal.h"
/*
* Bits in event code for POWER5 ( not POWER5 + + )
*/
#define PM_PMC_SH 20 /* PMC number (1-based) for direct events */
#define PM_PMC_MSK 0 xf
#define PM_PMC_MSKS (PM_PMC_MSK << PM_PMC_SH)
#define PM_UNIT_SH 16 /* TTMMUX number and setting - unit select */
#define PM_UNIT_MSK 0 xf
#define PM_BYTE_SH 12 /* Byte number of event bus to use */
#define PM_BYTE_MSK 7
#define PM_GRS_SH 8 /* Storage subsystem mux select */
#define PM_GRS_MSK 7
#define PM_BUSEVENT_MSK 0 x80 /* Set if event uses event bus */
#define PM_PMCSEL_MSK 0 x7f
/* Values in PM_UNIT field */
#define PM_FPU 0
#define PM_ISU0 1
#define PM_IFU 2
#define PM_ISU1 3
#define PM_IDU 4
#define PM_ISU0_ALT 6
#define PM_GRS 7
#define PM_LSU0 8
#define PM_LSU1 0 xc
#define PM_LASTUNIT 0 xc
/*
* Bits in MMCR1 for POWER5
*/
#define MMCR1_TTM0SEL_SH 62
#define MMCR1_TTM1SEL_SH 60
#define MMCR1_TTM2SEL_SH 58
#define MMCR1_TTM3SEL_SH 56
#define MMCR1_TTMSEL_MSK 3
#define MMCR1_TD_CP_DBG0SEL_SH 54
#define MMCR1_TD_CP_DBG1SEL_SH 52
#define MMCR1_TD_CP_DBG2SEL_SH 50
#define MMCR1_TD_CP_DBG3SEL_SH 48
#define MMCR1_GRS_L2SEL_SH 46
#define MMCR1_GRS_L2SEL_MSK 3
#define MMCR1_GRS_L3SEL_SH 44
#define MMCR1_GRS_L3SEL_MSK 3
#define MMCR1_GRS_MCSEL_SH 41
#define MMCR1_GRS_MCSEL_MSK 7
#define MMCR1_GRS_FABSEL_SH 39
#define MMCR1_GRS_FABSEL_MSK 3
#define MMCR1_PMC1_ADDER_SEL_SH 35
#define MMCR1_PMC2_ADDER_SEL_SH 34
#define MMCR1_PMC3_ADDER_SEL_SH 33
#define MMCR1_PMC4_ADDER_SEL_SH 32
#define MMCR1_PMC1SEL_SH 25
#define MMCR1_PMC2SEL_SH 17
#define MMCR1_PMC3SEL_SH 9
#define MMCR1_PMC4SEL_SH 1
#define MMCR1_PMCSEL_SH(n) (MMCR1_PMC1SEL_SH - (n) * 8 )
#define MMCR1_PMCSEL_MSK 0 x7f
/*
* Layout of constraint bits :
* 6666555555555544444444443333333333222222222211111111110000000000
* 3210987654321098765432109876543210987654321098765432109876543210
* < > < > [ > < > < > < > < > [ > [ > [ > < > < > < > < > < > < > < > < > < > < >
* T0T1 NC G0G1G2 G3 UC PS1PS2 B0 B1 B2 B3 P6P5P4P3P2P1
*
* T0 - TTM0 constraint
* 54 - 55 : TTM0SEL value ( 0 = FPU , 2 = IFU , 3 = ISU1 ) 0 xc0_0000_0000_0000
*
* T1 - TTM1 constraint
* 52 - 53 : TTM1SEL value ( 0 = IDU , 3 = GRS ) 0 x30_0000_0000_0000
*
* NC - number of counters
* 51 : NC error 0 x0008_0000_0000_0000
* 48 - 50 : number of events needing PMC1 - 4 0 x0007_0000_0000_0000
*
* G0 . . G3 - GRS mux constraints
* 46 - 47 : GRS_L2SEL value
* 44 - 45 : GRS_L3SEL value
* 41 - 44 : GRS_MCSEL value
* 39 - 40 : GRS_FABSEL value
* Note that these match up with their bit positions in MMCR1
*
* UC - unit constraint : can ' t have all three of FPU | IFU | ISU1 , ISU0 , IDU | GRS
* 37 : UC3 error 0 x20_0000_0000
* 36 : FPU | IFU | ISU1 events needed 0 x10_0000_0000
* 35 : ISU0 events needed 0 x08_0000_0000
* 34 : IDU | GRS events needed 0 x04_0000_0000
*
* PS1
* 33 : PS1 error 0 x2_0000_0000
* 31 - 32 : count of events needing PMC1 / 2 0 x1_8000_0000
*
* PS2
* 30 : PS2 error 0 x4000_0000
* 28 - 29 : count of events needing PMC3 / 4 0 x3000_0000
*
* B0
* 24 - 27 : Byte 0 event source 0 x0f00_0000
* Encoding as for the event code
*
* B1 , B2 , B3
* 20 - 23 , 16 - 19 , 12 - 15 : Byte 1 , 2 , 3 event sources
*
* P1 . . P6
* 0 - 11 : Count of events needing PMC1 . . PMC6
*/
static const int grsel_shift[8 ] = {
MMCR1_GRS_L2SEL_SH, MMCR1_GRS_L2SEL_SH, MMCR1_GRS_L2SEL_SH,
MMCR1_GRS_L3SEL_SH, MMCR1_GRS_L3SEL_SH, MMCR1_GRS_L3SEL_SH,
MMCR1_GRS_MCSEL_SH, MMCR1_GRS_FABSEL_SH
};
/* Masks and values for using events from the various units */
static unsigned long unit_cons[PM_LASTUNIT+1 ][2 ] = {
[PM_FPU] = { 0 xc0002000000000ul, 0 x00001000000000ul },
[PM_ISU0] = { 0 x00002000000000ul, 0 x00000800000000ul },
[PM_ISU1] = { 0 xc0002000000000ul, 0 xc0001000000000ul },
[PM_IFU] = { 0 xc0002000000000ul, 0 x80001000000000ul },
[PM_IDU] = { 0 x30002000000000ul, 0 x00000400000000ul },
[PM_GRS] = { 0 x30002000000000ul, 0 x30000400000000ul },
};
static int power5_get_constraint(u64 event, unsigned long *maskp,
unsigned long *valp, u64 event_config1 __maybe_unused)
{
int pmc, byte, unit, sh;
int bit, fmask;
unsigned long mask = 0 , value = 0 ;
int grp = -1 ;
pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
if (pmc) {
if (pmc > 6 )
return -1 ;
sh = (pmc - 1 ) * 2 ;
mask |= 2 << sh;
value |= 1 << sh;
if (pmc <= 4 )
grp = (pmc - 1 ) >> 1 ;
else if (event != 0 x500009 && event != 0 x600005)
return -1 ;
}
if (event & PM_BUSEVENT_MSK) {
unit = (event >> PM_UNIT_SH) & PM_UNIT_MSK;
if (unit > PM_LASTUNIT)
return -1 ;
if (unit == PM_ISU0_ALT)
unit = PM_ISU0;
mask |= unit_cons[unit][0 ];
value |= unit_cons[unit][1 ];
byte = (event >> PM_BYTE_SH) & PM_BYTE_MSK;
if (byte >= 4 ) {
if (unit != PM_LSU1)
return -1 ;
/* Map LSU1 low word (bytes 4-7) to unit LSU1+1 */
++unit;
byte &= 3 ;
}
if (unit == PM_GRS) {
bit = event & 7 ;
fmask = (bit == 6 )? 7 : 3 ;
sh = grsel_shift[bit];
mask |= (unsigned long )fmask << sh;
value |= (unsigned long )((event >> PM_GRS_SH) & fmask)
<< sh;
}
/*
* Bus events on bytes 0 and 2 can be counted
* on PMC1 / 2 ; bytes 1 and 3 on PMC3 / 4 .
*/
if (!pmc)
grp = byte & 1 ;
/* Set byte lane select field */
mask |= 0 xfUL << (24 - 4 * byte);
value |= (unsigned long )unit << (24 - 4 * byte);
}
if (grp == 0 ) {
/* increment PMC1/2 field */
mask |= 0 x200000000ul;
value |= 0 x080000000ul;
} else if (grp == 1 ) {
/* increment PMC3/4 field */
mask |= 0 x40000000ul;
value |= 0 x10000000ul;
}
if (pmc < 5 ) {
/* need a counter from PMC1-4 set */
mask |= 0 x8000000000000ul;
value |= 0 x1000000000000ul;
}
*maskp = mask;
*valp = value;
return 0 ;
}
#define MAX_ALT 3 /* at most 3 alternatives for any event */
static const unsigned int event_alternatives[][MAX_ALT] = {
{ 0 x120e4, 0 x400002 }, /* PM_GRP_DISP_REJECT */
{ 0 x410c7, 0 x441084 }, /* PM_THRD_L2MISS_BOTH_CYC */
{ 0 x100005, 0 x600005 }, /* PM_RUN_CYC */
{ 0 x100009, 0 x200009, 0 x500009 }, /* PM_INST_CMPL */
{ 0 x300009, 0 x400009 }, /* PM_INST_DISP */
};
/*
* Scan the alternatives table for a match and return the
* index into the alternatives table if found , else - 1 .
*/
static int find_alternative(u64 event)
{
int i, j;
for (i = 0 ; i < ARRAY_SIZE(event_alternatives); ++i) {
if (event < event_alternatives[i][0 ])
break ;
for (j = 0 ; j < MAX_ALT && event_alternatives[i][j]; ++j)
if (event == event_alternatives[i][j])
return i;
}
return -1 ;
}
static const unsigned char bytedecode_alternatives[4 ][4 ] = {
/* PMC 1 */ { 0x21, 0x23, 0x25, 0x27 },
/* PMC 2 */ { 0x07, 0x17, 0x0e, 0x1e },
/* PMC 3 */ { 0x20, 0x22, 0x24, 0x26 },
/* PMC 4 */ { 0x07, 0x17, 0x0e, 0x1e }
};
/*
* Some direct events for decodes of event bus byte 3 have alternative
* PMCSEL values on other counters . This returns the alternative
* event code for those that do , or - 1 otherwise .
*/
static s64 find_alternative_bdecode(u64 event)
{
int pmc, altpmc, pp, j;
pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
if (pmc == 0 || pmc > 4 )
return -1 ;
altpmc = 5 - pmc; /* 1 <-> 4, 2 <-> 3 */
pp = event & PM_PMCSEL_MSK;
for (j = 0 ; j < 4 ; ++j) {
if (bytedecode_alternatives[pmc - 1 ][j] == pp) {
return (event & ~(PM_PMC_MSKS | PM_PMCSEL_MSK)) |
(altpmc << PM_PMC_SH) |
bytedecode_alternatives[altpmc - 1 ][j];
}
}
return -1 ;
}
static int power5_get_alternatives(u64 event, unsigned int flags, u64 alt[])
{
int i, j, nalt = 1 ;
s64 ae;
alt[0 ] = event;
nalt = 1 ;
i = find_alternative(event);
if (i >= 0 ) {
for (j = 0 ; j < MAX_ALT; ++j) {
ae = event_alternatives[i][j];
if (ae && ae != event)
alt[nalt++] = ae;
}
} else {
ae = find_alternative_bdecode(event);
if (ae > 0 )
alt[nalt++] = ae;
}
return nalt;
}
/*
* Map of which direct events on which PMCs are marked instruction events .
* Indexed by PMCSEL value , bit i ( LE ) set if PMC i is a marked event .
* Bit 0 is set if it is marked for all PMCs .
* The 0 x80 bit indicates a byte decode PMCSEL value .
*/
static unsigned char direct_event_is_marked[0 x28] = {
0 , /* 00 */
0 x1f, /* 01 PM_IOPS_CMPL */
0 x2, /* 02 PM_MRK_GRP_DISP */
0 xe, /* 03 PM_MRK_ST_CMPL, PM_MRK_ST_GPS, PM_MRK_ST_CMPL_INT */
0 , /* 04 */
0 x1c, /* 05 PM_MRK_BRU_FIN, PM_MRK_INST_FIN, PM_MRK_CRU_FIN */
0 x80, /* 06 */
0 x80, /* 07 */
0 , 0 , 0 ,/* 08 - 0a */
0 x18, /* 0b PM_THRESH_TIMEO, PM_MRK_GRP_TIMEO */
0 , /* 0c */
0 x80, /* 0d */
0 x80, /* 0e */
0 , /* 0f */
0 , /* 10 */
0 x14, /* 11 PM_MRK_GRP_BR_REDIR, PM_MRK_GRP_IC_MISS */
0 , /* 12 */
0 x10, /* 13 PM_MRK_GRP_CMPL */
0 x1f, /* 14 PM_GRP_MRK, PM_MRK_{FXU,FPU,LSU}_FIN */
0 x2, /* 15 PM_MRK_GRP_ISSUED */
0 x80, /* 16 */
0 x80, /* 17 */
0 , 0 , 0 , 0 , 0 ,
0 x80, /* 1d */
0 x80, /* 1e */
0 , /* 1f */
0 x80, /* 20 */
0 x80, /* 21 */
0 x80, /* 22 */
0 x80, /* 23 */
0 x80, /* 24 */
0 x80, /* 25 */
0 x80, /* 26 */
0 x80, /* 27 */
};
/*
* Returns 1 if event counts things relating to marked instructions
* and thus needs the MMCRA_SAMPLE_ENABLE bit set , or 0 if not .
*/
static int power5_marked_instr_event(u64 event)
{
int pmc, psel;
int bit, byte, unit;
u32 mask;
pmc = (event >> PM_PMC_SH) & PM_PMC_MSK;
psel = event & PM_PMCSEL_MSK;
if (pmc >= 5 )
return 0 ;
bit = -1 ;
if (psel < sizeof (direct_event_is_marked)) {
if (direct_event_is_marked[psel] & (1 << pmc))
return 1 ;
if (direct_event_is_marked[psel] & 0 x80)
bit = 4 ;
else if (psel == 0 x08)
bit = pmc - 1 ;
else if (psel == 0 x10)
bit = 4 - pmc;
else if (psel == 0 x1b && (pmc == 1 || pmc == 3 ))
bit = 4 ;
} else if ((psel & 0 x58) == 0 x40)
bit = psel & 7 ;
if (!(event & PM_BUSEVENT_MSK))
return 0 ;
byte = (event >> PM_BYTE_SH) & PM_BYTE_MSK;
unit = (event >> PM_UNIT_SH) & PM_UNIT_MSK;
if (unit == PM_LSU0) {
/* byte 1 bits 0-7, byte 2 bits 0,2-4,6 */
mask = 0 x5dff00;
} else if (unit == PM_LSU1 && byte >= 4 ) {
byte -= 4 ;
/* byte 4 bits 1,3,5,7, byte 5 bits 6-7, byte 7 bits 0-4,6 */
mask = 0 x5f00c0aa;
} else
return 0 ;
return (mask >> (byte * 8 + bit)) & 1 ;
}
static int power5_compute_mmcr(u64 event[], int n_ev,
unsigned int hwc[], struct mmcr_regs *mmcr,
struct perf_event *pevents[],
u32 flags __maybe_unused)
{
unsigned long mmcr1 = 0 ;
unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;
unsigned int pmc, unit, byte, psel;
unsigned int ttm, grp;
int i, isbus, bit, grsel;
unsigned int pmc_inuse = 0 ;
unsigned int pmc_grp_use[2 ];
unsigned char busbyte[4 ];
unsigned char unituse[16 ];
int ttmuse;
if (n_ev > 6 )
return -1 ;
/* First pass to count resource use */
pmc_grp_use[0 ] = pmc_grp_use[1 ] = 0 ;
memset(busbyte, 0 , sizeof (busbyte));
memset(unituse, 0 , sizeof (unituse));
for (i = 0 ; i < n_ev; ++i) {
pmc = (event[i] >> PM_PMC_SH) & PM_PMC_MSK;
if (pmc) {
if (pmc > 6 )
return -1 ;
if (pmc_inuse & (1 << (pmc - 1 )))
return -1 ;
pmc_inuse |= 1 << (pmc - 1 );
/* count 1/2 vs 3/4 use */
if (pmc <= 4 )
++pmc_grp_use[(pmc - 1 ) >> 1 ];
}
if (event[i] & PM_BUSEVENT_MSK) {
unit = (event[i] >> PM_UNIT_SH) & PM_UNIT_MSK;
byte = (event[i] >> PM_BYTE_SH) & PM_BYTE_MSK;
if (unit > PM_LASTUNIT)
return -1 ;
if (unit == PM_ISU0_ALT)
unit = PM_ISU0;
if (byte >= 4 ) {
if (unit != PM_LSU1)
return -1 ;
++unit;
byte &= 3 ;
}
if (!pmc)
++pmc_grp_use[byte & 1 ];
if (busbyte[byte] && busbyte[byte] != unit)
return -1 ;
busbyte[byte] = unit;
unituse[unit] = 1 ;
}
}
if (pmc_grp_use[0 ] > 2 || pmc_grp_use[1 ] > 2 )
return -1 ;
/*
* Assign resources and set multiplexer selects .
*
* PM_ISU0 can go either on TTM0 or TTM1 , but that ' s the only
* choice we have to deal with .
*/
if (unituse[PM_ISU0] &
(unituse[PM_FPU] | unituse[PM_IFU] | unituse[PM_ISU1])) {
unituse[PM_ISU0_ALT] = 1 ; /* move ISU to TTM1 */
unituse[PM_ISU0] = 0 ;
}
/* Set TTM[01]SEL fields. */
ttmuse = 0 ;
for (i = PM_FPU; i <= PM_ISU1; ++i) {
if (!unituse[i])
continue ;
if (ttmuse++)
return -1 ;
mmcr1 |= (unsigned long )i << MMCR1_TTM0SEL_SH;
}
ttmuse = 0 ;
for (; i <= PM_GRS; ++i) {
if (!unituse[i])
continue ;
if (ttmuse++)
return -1 ;
mmcr1 |= (unsigned long )(i & 3 ) << MMCR1_TTM1SEL_SH;
}
if (ttmuse > 1 )
return -1 ;
/* Set byte lane select fields, TTM[23]SEL and GRS_*SEL. */
for (byte = 0 ; byte < 4 ; ++byte) {
unit = busbyte[byte];
if (!unit)
continue ;
if (unit == PM_ISU0 && unituse[PM_ISU0_ALT]) {
/* get ISU0 through TTM1 rather than TTM0 */
unit = PM_ISU0_ALT;
} else if (unit == PM_LSU1 + 1 ) {
/* select lower word of LSU1 for this byte */
mmcr1 |= 1 ul << (MMCR1_TTM3SEL_SH + 3 - byte);
}
ttm = unit >> 2 ;
mmcr1 |= (unsigned long )ttm
<< (MMCR1_TD_CP_DBG0SEL_SH - 2 * byte);
}
/* Second pass: assign PMCs, set PMCxSEL and PMCx_ADDER_SEL fields */
for (i = 0 ; i < n_ev; ++i) {
pmc = (event[i] >> PM_PMC_SH) & PM_PMC_MSK;
unit = (event[i] >> PM_UNIT_SH) & PM_UNIT_MSK;
byte = (event[i] >> PM_BYTE_SH) & PM_BYTE_MSK;
psel = event[i] & PM_PMCSEL_MSK;
isbus = event[i] & PM_BUSEVENT_MSK;
if (!pmc) {
/* Bus event or any-PMC direct event */
for (pmc = 0 ; pmc < 4 ; ++pmc) {
if (pmc_inuse & (1 << pmc))
continue ;
grp = (pmc >> 1 ) & 1 ;
if (isbus) {
if (grp == (byte & 1 ))
break ;
} else if (pmc_grp_use[grp] < 2 ) {
++pmc_grp_use[grp];
break ;
}
}
pmc_inuse |= 1 << pmc;
} else if (pmc <= 4 ) {
/* Direct event */
--pmc;
if ((psel == 8 || psel == 0 x10) && isbus && (byte & 2 ))
/* add events on higher-numbered bus */
mmcr1 |= 1 ul << (MMCR1_PMC1_ADDER_SEL_SH - pmc);
} else {
/* Instructions or run cycles on PMC5/6 */
--pmc;
}
if (isbus && unit == PM_GRS) {
bit = psel & 7 ;
grsel = (event[i] >> PM_GRS_SH) & PM_GRS_MSK;
mmcr1 |= (unsigned long )grsel << grsel_shift[bit];
}
if (power5_marked_instr_event(event[i]))
mmcra |= MMCRA_SAMPLE_ENABLE;
if (pmc <= 3 )
mmcr1 |= psel << MMCR1_PMCSEL_SH(pmc);
hwc[i] = pmc;
}
/* Return MMCRx values */
mmcr->mmcr0 = 0 ;
if (pmc_inuse & 1 )
mmcr->mmcr0 = MMCR0_PMC1CE;
if (pmc_inuse & 0 x3e)
mmcr->mmcr0 |= MMCR0_PMCjCE;
mmcr->mmcr1 = mmcr1;
mmcr->mmcra = mmcra;
return 0 ;
}
static void power5_disable_pmc(unsigned int pmc, struct mmcr_regs *mmcr)
{
if (pmc <= 3 )
mmcr->mmcr1 &= ~(0 x7fUL << MMCR1_PMCSEL_SH(pmc));
}
static int power5_generic_events[] = {
[PERF_COUNT_HW_CPU_CYCLES] = 0 xf,
[PERF_COUNT_HW_INSTRUCTIONS] = 0 x100009,
[PERF_COUNT_HW_CACHE_REFERENCES] = 0 x4c1090, /* LD_REF_L1 */
[PERF_COUNT_HW_CACHE_MISSES] = 0 x3c1088, /* LD_MISS_L1 */
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0 x230e4, /* BR_ISSUED */
[PERF_COUNT_HW_BRANCH_MISSES] = 0 x230e5, /* BR_MPRED_CR */
};
#define C(x) PERF_COUNT_HW_CACHE_## x
/*
* Table of generalized cache - related events .
* 0 means not supported , - 1 means nonsensical , other values
* are event codes .
*/
static u64 power5_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
[C(L1D)] = { /* RESULT_ACCESS RESULT_MISS */
[C(OP_READ)] = { 0 x4c1090, 0 x3c1088 },
[C(OP_WRITE)] = { 0 x3c1090, 0 xc10c3 },
[C(OP_PREFETCH)] = { 0 xc70e7, 0 },
},
[C(L1I)] = { /* RESULT_ACCESS RESULT_MISS */
[C(OP_READ)] = { 0 , 0 },
[C(OP_WRITE)] = { -1 , -1 },
[C(OP_PREFETCH)] = { 0 , 0 },
},
[C(LL)] = { /* RESULT_ACCESS RESULT_MISS */
[C(OP_READ)] = { 0 , 0 x3c309b },
[C(OP_WRITE)] = { 0 , 0 },
[C(OP_PREFETCH)] = { 0 xc50c3, 0 },
},
[C(DTLB)] = { /* RESULT_ACCESS RESULT_MISS */
[C(OP_READ)] = { 0 x2c4090, 0 x800c4 },
[C(OP_WRITE)] = { -1 , -1 },
[C(OP_PREFETCH)] = { -1 , -1 },
},
[C(ITLB)] = { /* RESULT_ACCESS RESULT_MISS */
[C(OP_READ)] = { 0 , 0 x800c0 },
[C(OP_WRITE)] = { -1 , -1 },
[C(OP_PREFETCH)] = { -1 , -1 },
},
[C(BPU)] = { /* RESULT_ACCESS RESULT_MISS */
[C(OP_READ)] = { 0 x230e4, 0 x230e5 },
[C(OP_WRITE)] = { -1 , -1 },
[C(OP_PREFETCH)] = { -1 , -1 },
},
[C(NODE)] = { /* RESULT_ACCESS RESULT_MISS */
[C(OP_READ)] = { -1 , -1 },
[C(OP_WRITE)] = { -1 , -1 },
[C(OP_PREFETCH)] = { -1 , -1 },
},
};
static struct power_pmu power5_pmu = {
.name = "POWER5" ,
.n_counter = 6 ,
.max_alternatives = MAX_ALT,
.add_fields = 0 x7000090000555ul,
.test_adder = 0 x3000490000000ul,
.compute_mmcr = power5_compute_mmcr,
.get_constraint = power5_get_constraint,
.get_alternatives = power5_get_alternatives,
.disable_pmc = power5_disable_pmc,
.n_generic = ARRAY_SIZE(power5_generic_events),
.generic_events = power5_generic_events,
.cache_events = &power5_cache_events,
.flags = PPMU_HAS_SSLOT,
};
int __init init_power5_pmu(void )
{
unsigned int pvr = mfspr(SPRN_PVR);
if (PVR_VER(pvr) != PVR_POWER5)
return -ENODEV;
return register_power_pmu(&power5_pmu);
}
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