Skip to content

Commit

Permalink
[IA64] Perfmon for Montecito
Browse files Browse the repository at this point in the history 
Add Montecito PMU description table for perfmon2

Signed-off-by: Stephane Eranian <eranian@hpl.hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
  • Loading branch information
Stephane Eranian authored and Tony Luck committed Jan 16, 2006
1 parent 4a8e4a2 commit 9179cb6
Show file tree
Hide file tree
Showing 3 changed files with 273 additions and 2 deletions.
2 changes: 2 additions & 0 deletions arch/ia64/kernel/perfmon.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -628,9 +628,11 @@ static int pfm_write_ibr_dbr(int mode, pfm_context_t *ctx, void *arg, int count,

#include "perfmon_itanium.h"
#include "perfmon_mckinley.h"
#include "perfmon_montecito.h"
#include "perfmon_generic.h"

static pmu_config_t *pmu_confs[]={
&pmu_conf_mont,
&pmu_conf_mck,
&pmu_conf_ita,
&pmu_conf_gen, /* must be last */
Expand Down
269 changes: 269 additions & 0 deletions arch/ia64/kernel/perfmon_montecito.h
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,269 @@
/*
* This file contains the Montecito PMU register description tables
* and pmc checker used by perfmon.c.
*
* Copyright (c) 2005-2006 Hewlett-Packard Development Company, L.P.
* Contributed by Stephane Eranian <eranian@hpl.hp.com>
*/
static int pfm_mont_pmc_check(struct task_struct *task, pfm_context_t *ctx, unsigned int cnum, unsigned long *val, struct pt_regs *regs);

#define RDEP_MONT_ETB (RDEP(38)|RDEP(39)|RDEP(48)|RDEP(49)|RDEP(50)|RDEP(51)|RDEP(52)|RDEP(53)|RDEP(54)|\
RDEP(55)|RDEP(56)|RDEP(57)|RDEP(58)|RDEP(59)|RDEP(60)|RDEP(61)|RDEP(62)|RDEP(63))
#define RDEP_MONT_DEAR (RDEP(32)|RDEP(33)|RDEP(36))
#define RDEP_MONT_IEAR (RDEP(34)|RDEP(35))

static pfm_reg_desc_t pfm_mont_pmc_desc[PMU_MAX_PMCS]={
/* pmc0 */ { PFM_REG_CONTROL , 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc1 */ { PFM_REG_CONTROL , 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc2 */ { PFM_REG_CONTROL , 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc3 */ { PFM_REG_CONTROL , 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc4 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(4),0, 0, 0}, {0,0, 0, 0}},
/* pmc5 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(5),0, 0, 0}, {0,0, 0, 0}},
/* pmc6 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(6),0, 0, 0}, {0,0, 0, 0}},
/* pmc7 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(7),0, 0, 0}, {0,0, 0, 0}},
/* pmc8 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(8),0, 0, 0}, {0,0, 0, 0}},
/* pmc9 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(9),0, 0, 0}, {0,0, 0, 0}},
/* pmc10 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(10),0, 0, 0}, {0,0, 0, 0}},
/* pmc11 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(11),0, 0, 0}, {0,0, 0, 0}},
/* pmc12 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(12),0, 0, 0}, {0,0, 0, 0}},
/* pmc13 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(13),0, 0, 0}, {0,0, 0, 0}},
/* pmc14 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(14),0, 0, 0}, {0,0, 0, 0}},
/* pmc15 */ { PFM_REG_COUNTING, 6, 0x2000000, 0x7c7fff7f, NULL, pfm_mont_pmc_check, {RDEP(15),0, 0, 0}, {0,0, 0, 0}},
/* pmc16 */ { PFM_REG_NOTIMPL, },
/* pmc17 */ { PFM_REG_NOTIMPL, },
/* pmc18 */ { PFM_REG_NOTIMPL, },
/* pmc19 */ { PFM_REG_NOTIMPL, },
/* pmc20 */ { PFM_REG_NOTIMPL, },
/* pmc21 */ { PFM_REG_NOTIMPL, },
/* pmc22 */ { PFM_REG_NOTIMPL, },
/* pmc23 */ { PFM_REG_NOTIMPL, },
/* pmc24 */ { PFM_REG_NOTIMPL, },
/* pmc25 */ { PFM_REG_NOTIMPL, },
/* pmc26 */ { PFM_REG_NOTIMPL, },
/* pmc27 */ { PFM_REG_NOTIMPL, },
/* pmc28 */ { PFM_REG_NOTIMPL, },
/* pmc29 */ { PFM_REG_NOTIMPL, },
/* pmc30 */ { PFM_REG_NOTIMPL, },
/* pmc31 */ { PFM_REG_NOTIMPL, },
/* pmc32 */ { PFM_REG_CONFIG, 0, 0x30f01ffffffffff, 0x30f01ffffffffff, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc33 */ { PFM_REG_CONFIG, 0, 0x0, 0x1ffffffffff, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc34 */ { PFM_REG_CONFIG, 0, 0xf01ffffffffff, 0xf01ffffffffff, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc35 */ { PFM_REG_CONFIG, 0, 0x0, 0x1ffffffffff, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc36 */ { PFM_REG_CONFIG, 0, 0xfffffff0, 0xf, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc37 */ { PFM_REG_MONITOR, 4, 0x0, 0x3fff, NULL, pfm_mont_pmc_check, {RDEP_MONT_IEAR, 0, 0, 0}, {0, 0, 0, 0}},
/* pmc38 */ { PFM_REG_CONFIG, 0, 0xdb6, 0x2492, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc39 */ { PFM_REG_MONITOR, 6, 0x0, 0xffcf, NULL, pfm_mont_pmc_check, {RDEP_MONT_ETB,0, 0, 0}, {0,0, 0, 0}},
/* pmc40 */ { PFM_REG_MONITOR, 6, 0x2000000, 0xf01cf, NULL, pfm_mont_pmc_check, {RDEP_MONT_DEAR,0, 0, 0}, {0,0, 0, 0}},
/* pmc41 */ { PFM_REG_CONFIG, 0, 0x00002078fefefefe, 0x1e00018181818, NULL, pfm_mont_pmc_check, {0,0, 0, 0}, {0,0, 0, 0}},
/* pmc42 */ { PFM_REG_MONITOR, 6, 0x0, 0x7ff4f, NULL, pfm_mont_pmc_check, {RDEP_MONT_ETB,0, 0, 0}, {0,0, 0, 0}},
{ PFM_REG_END , 0, 0x0, -1, NULL, NULL, {0,}, {0,}}, /* end marker */
};

static pfm_reg_desc_t pfm_mont_pmd_desc[PMU_MAX_PMDS]={
/* pmd0 */ { PFM_REG_NOTIMPL, },
/* pmd1 */ { PFM_REG_NOTIMPL, },
/* pmd2 */ { PFM_REG_NOTIMPL, },
/* pmd3 */ { PFM_REG_NOTIMPL, },
/* pmd4 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(4),0, 0, 0}},
/* pmd5 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(5),0, 0, 0}},
/* pmd6 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(6),0, 0, 0}},
/* pmd7 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(7),0, 0, 0}},
/* pmd8 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(8),0, 0, 0}},
/* pmd9 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(9),0, 0, 0}},
/* pmd10 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(10),0, 0, 0}},
/* pmd11 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(11),0, 0, 0}},
/* pmd12 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(12),0, 0, 0}},
/* pmd13 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(13),0, 0, 0}},
/* pmd14 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(14),0, 0, 0}},
/* pmd15 */ { PFM_REG_COUNTING, 0, 0x0, -1, NULL, NULL, {0,0, 0, 0}, {RDEP(15),0, 0, 0}},
/* pmd16 */ { PFM_REG_NOTIMPL, },
/* pmd17 */ { PFM_REG_NOTIMPL, },
/* pmd18 */ { PFM_REG_NOTIMPL, },
/* pmd19 */ { PFM_REG_NOTIMPL, },
/* pmd20 */ { PFM_REG_NOTIMPL, },
/* pmd21 */ { PFM_REG_NOTIMPL, },
/* pmd22 */ { PFM_REG_NOTIMPL, },
/* pmd23 */ { PFM_REG_NOTIMPL, },
/* pmd24 */ { PFM_REG_NOTIMPL, },
/* pmd25 */ { PFM_REG_NOTIMPL, },
/* pmd26 */ { PFM_REG_NOTIMPL, },
/* pmd27 */ { PFM_REG_NOTIMPL, },
/* pmd28 */ { PFM_REG_NOTIMPL, },
/* pmd29 */ { PFM_REG_NOTIMPL, },
/* pmd30 */ { PFM_REG_NOTIMPL, },
/* pmd31 */ { PFM_REG_NOTIMPL, },
/* pmd32 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP(33)|RDEP(36),0, 0, 0}, {RDEP(40),0, 0, 0}},
/* pmd33 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP(32)|RDEP(36),0, 0, 0}, {RDEP(40),0, 0, 0}},
/* pmd34 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP(35),0, 0, 0}, {RDEP(37),0, 0, 0}},
/* pmd35 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP(34),0, 0, 0}, {RDEP(37),0, 0, 0}},
/* pmd36 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP(32)|RDEP(33),0, 0, 0}, {RDEP(40),0, 0, 0}},
/* pmd37 */ { PFM_REG_NOTIMPL, },
/* pmd38 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd39 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd40 */ { PFM_REG_NOTIMPL, },
/* pmd41 */ { PFM_REG_NOTIMPL, },
/* pmd42 */ { PFM_REG_NOTIMPL, },
/* pmd43 */ { PFM_REG_NOTIMPL, },
/* pmd44 */ { PFM_REG_NOTIMPL, },
/* pmd45 */ { PFM_REG_NOTIMPL, },
/* pmd46 */ { PFM_REG_NOTIMPL, },
/* pmd47 */ { PFM_REG_NOTIMPL, },
/* pmd48 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd49 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd50 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd51 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd52 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd53 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd54 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd55 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd56 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd57 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd58 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd59 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd60 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd61 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd62 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
/* pmd63 */ { PFM_REG_BUFFER, 0, 0x0, -1, NULL, NULL, {RDEP_MONT_ETB,0, 0, 0}, {RDEP(39),0, 0, 0}},
{ PFM_REG_END , 0, 0x0, -1, NULL, NULL, {0,}, {0,}}, /* end marker */
};

/*
* PMC reserved fields must have their power-up values preserved
*/
static int
pfm_mont_reserved(unsigned int cnum, unsigned long *val, struct pt_regs *regs)
{
unsigned long tmp1, tmp2, ival = *val;

/* remove reserved areas from user value */
tmp1 = ival & PMC_RSVD_MASK(cnum);

/* get reserved fields values */
tmp2 = PMC_DFL_VAL(cnum) & ~PMC_RSVD_MASK(cnum);

*val = tmp1 | tmp2;

DPRINT(("pmc[%d]=0x%lx, mask=0x%lx, reset=0x%lx, val=0x%lx\n",
cnum, ival, PMC_RSVD_MASK(cnum), PMC_DFL_VAL(cnum), *val));
return 0;
}

/*
* task can be NULL if the context is unloaded
*/
static int
pfm_mont_pmc_check(struct task_struct *task, pfm_context_t *ctx, unsigned int cnum, unsigned long *val, struct pt_regs *regs)
{
int ret = 0;
unsigned long val32 = 0, val38 = 0, val41 = 0;
unsigned long tmpval;
int check_case1 = 0;
int is_loaded;

/* first preserve the reserved fields */
pfm_mont_reserved(cnum, val, regs);

tmpval = *val;

/* sanity check */
if (ctx == NULL) return -EINVAL;

is_loaded = ctx->ctx_state == PFM_CTX_LOADED || ctx->ctx_state == PFM_CTX_MASKED;

/*
* we must clear the debug registers if pmc41 has a value which enable
* memory pipeline event constraints. In this case we need to clear the
* the debug registers if they have not yet been accessed. This is required
* to avoid picking stale state.
* PMC41 is "active" if:
* one of the pmc41.cfg_dtagXX field is different from 0x3
* AND
* at the corresponding pmc41.en_dbrpXX is set.
* AND
* ctx_fl_using_dbreg == 0 (i.e., dbr not yet used)
*/
DPRINT(("cnum=%u val=0x%lx, using_dbreg=%d loaded=%d\n", cnum, tmpval, ctx->ctx_fl_using_dbreg, is_loaded));

if (cnum == 41 && is_loaded
&& (tmpval & 0x1e00000000000) && (tmpval & 0x18181818UL) != 0x18181818UL && ctx->ctx_fl_using_dbreg == 0) {

DPRINT(("pmc[%d]=0x%lx has active pmc41 settings, clearing dbr\n", cnum, tmpval));

/* don't mix debug with perfmon */
if (task && (task->thread.flags & IA64_THREAD_DBG_VALID) != 0) return -EINVAL;

/*
* a count of 0 will mark the debug registers if:
* AND
*/
ret = pfm_write_ibr_dbr(PFM_DATA_RR, ctx, NULL, 0, regs);
if (ret) return ret;
}
/*
* we must clear the (instruction) debug registers if:
* pmc38.ig_ibrpX is 0 (enabled)
* AND
* ctx_fl_using_dbreg == 0 (i.e., dbr not yet used)
*/
if (cnum == 38 && is_loaded && ((tmpval & 0x492UL) != 0x492UL) && ctx->ctx_fl_using_dbreg == 0) {

DPRINT(("pmc38=0x%lx has active pmc38 settings, clearing ibr\n", tmpval));

/* don't mix debug with perfmon */
if (task && (task->thread.flags & IA64_THREAD_DBG_VALID) != 0) return -EINVAL;

/*
* a count of 0 will mark the debug registers as in use and also
* ensure that they are properly cleared.
*/
ret = pfm_write_ibr_dbr(PFM_CODE_RR, ctx, NULL, 0, regs);
if (ret) return ret;

}
switch(cnum) {
case 32: val32 = *val;
val38 = ctx->ctx_pmcs[38];
val41 = ctx->ctx_pmcs[41];
check_case1 = 1;
break;
case 38: val38 = *val;
val32 = ctx->ctx_pmcs[32];
val41 = ctx->ctx_pmcs[41];
check_case1 = 1;
break;
case 41: val41 = *val;
val32 = ctx->ctx_pmcs[32];
val38 = ctx->ctx_pmcs[38];
check_case1 = 1;
break;
}
/* check illegal configuration which can produce inconsistencies in tagging
* i-side events in L1D and L2 caches
*/
if (check_case1) {
ret = (((val41 >> 45) & 0xf) == 0 && ((val32>>57) & 0x1) == 0)
&& ((((val38>>1) & 0x3) == 0x2 || ((val38>>1) & 0x3) == 0)
|| (((val38>>4) & 0x3) == 0x2 || ((val38>>4) & 0x3) == 0));
if (ret) {
DPRINT(("invalid config pmc38=0x%lx pmc41=0x%lx pmc32=0x%lx\n", val38, val41, val32));
return -EINVAL;
}
}
*val = tmpval;
return 0;
}

/*
* impl_pmcs, impl_pmds are computed at runtime to minimize errors!
*/
static pmu_config_t pmu_conf_mont={
.pmu_name = "Montecito",
.pmu_family = 0x20,
.flags = PFM_PMU_IRQ_RESEND,
.ovfl_val = (1UL << 47) - 1,
.pmd_desc = pfm_mont_pmd_desc,
.pmc_desc = pfm_mont_pmc_desc,
.num_ibrs = 8,
.num_dbrs = 8,
.use_rr_dbregs = 1 /* debug register are use for range retrictions */
};
4 changes: 2 additions & 2 deletions include/asm-ia64/processor.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -25,8 +25,8 @@
* Limits for PMC and PMD are set to less than maximum architected values
* but should be sufficient for a while
*/
#define IA64_NUM_PMC_REGS 32
#define IA64_NUM_PMD_REGS 32
#define IA64_NUM_PMC_REGS 64
#define IA64_NUM_PMD_REGS 64

#define DEFAULT_MAP_BASE __IA64_UL_CONST(0x2000000000000000)
#define DEFAULT_TASK_SIZE __IA64_UL_CONST(0xa000000000000000)
Expand Down

0 comments on commit 9179cb6

Please sign in to comment.