mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-12-29 09:16:33 +00:00
0300a92e96
Currently in some cases, when the sampled instruction address register
latches to a specific address during sampling, the privilege bits
captured in the sampled event register are incorrect.
For example, a snippet from the perf report on a power10 system is:
Overhead Address Command Shared Object Symbol
........ .................. ............ ................. .......................
2.41% 0x7fff9f94a02c null_syscall [unknown] [k] 0x00007fff9f94a02c
2.20% 0x7fff9f94a02c null_syscall libc.so.6 [.] syscall
perf_get_misc_flags() function looks at the privilege bits to return
the corresponding flags to be used for the address symbol and these
privilege bit details are read from the sampled event register. In the
above snippet, address "0x00007fff9f94a02c" is shown as "k" (kernel) due
to the incorrect privilege bits captured in the sampled event register.
To address this case check whether the sampled address is in the kernel
area. Since this is specific to the latest platform, a new pmu flag
is added called "PPMU_P10" and is used to contain the proposed fix.
PPMU_P10_DD1 marked events are also included under PPMU_P10, hence
remove the code specific to PPMU_P10_DD1 marked events.
Signed-off-by: Anjali K <anjalik@linux.ibm.com>
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com <mailto:atrajeev@linux.vnet.ibm.com>>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240528040356.2722275-1-anjalik@linux.ibm.com
665 lines
18 KiB
C
665 lines
18 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Performance counter support for POWER10 processors.
|
|
*
|
|
* Copyright 2020 Madhavan Srinivasan, IBM Corporation.
|
|
* Copyright 2020 Athira Rajeev, IBM Corporation.
|
|
*/
|
|
|
|
#define pr_fmt(fmt) "power10-pmu: " fmt
|
|
|
|
#include "isa207-common.h"
|
|
|
|
/*
|
|
* Raw event encoding for Power10:
|
|
*
|
|
* 60 56 52 48 44 40 36 32
|
|
* | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - |
|
|
* | | [ ] [ src_match ] [ src_mask ] | [ ] [ l2l3_sel ] [ thresh_ctl ]
|
|
* | | | | | |
|
|
* | | *- IFM (Linux) | | thresh start/stop -*
|
|
* | *- BHRB (Linux) | src_sel
|
|
* *- EBB (Linux) *invert_bit
|
|
*
|
|
* 28 24 20 16 12 8 4 0
|
|
* | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - |
|
|
* [ ] [ sample ] [ ] [ ] [ pmc ] [unit ] [ ] | m [ pmcxsel ]
|
|
* | | | | | | |
|
|
* | | | | | | *- mark
|
|
* | | | *- L1/L2/L3 cache_sel | |*-radix_scope_qual
|
|
* | | sdar_mode |
|
|
* | *- sampling mode for marked events *- combine
|
|
* |
|
|
* *- thresh_sel
|
|
*
|
|
* Below uses IBM bit numbering.
|
|
*
|
|
* MMCR1[x:y] = unit (PMCxUNIT)
|
|
* MMCR1[24] = pmc1combine[0]
|
|
* MMCR1[25] = pmc1combine[1]
|
|
* MMCR1[26] = pmc2combine[0]
|
|
* MMCR1[27] = pmc2combine[1]
|
|
* MMCR1[28] = pmc3combine[0]
|
|
* MMCR1[29] = pmc3combine[1]
|
|
* MMCR1[30] = pmc4combine[0]
|
|
* MMCR1[31] = pmc4combine[1]
|
|
*
|
|
* if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011
|
|
* MMCR1[20:27] = thresh_ctl
|
|
* else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001
|
|
* MMCR1[20:27] = thresh_ctl
|
|
* else
|
|
* MMCRA[48:55] = thresh_ctl (THRESH START/END)
|
|
*
|
|
* if thresh_sel:
|
|
* MMCRA[45:47] = thresh_sel
|
|
*
|
|
* if l2l3_sel:
|
|
* MMCR2[56:60] = l2l3_sel[0:4]
|
|
*
|
|
* MMCR1[16] = cache_sel[0]
|
|
* MMCR1[17] = cache_sel[1]
|
|
* MMCR1[18] = radix_scope_qual
|
|
*
|
|
* if mark:
|
|
* MMCRA[63] = 1 (SAMPLE_ENABLE)
|
|
* MMCRA[57:59] = sample[0:2] (RAND_SAMP_ELIG)
|
|
* MMCRA[61:62] = sample[3:4] (RAND_SAMP_MODE)
|
|
*
|
|
* if EBB and BHRB:
|
|
* MMCRA[32:33] = IFM
|
|
*
|
|
* MMCRA[SDAR_MODE] = sdar_mode[0:1]
|
|
*/
|
|
|
|
/*
|
|
* Some power10 event codes.
|
|
*/
|
|
#define EVENT(_name, _code) enum{_name = _code}
|
|
|
|
#include "power10-events-list.h"
|
|
|
|
#undef EVENT
|
|
|
|
/* MMCRA IFM bits - POWER10 */
|
|
#define POWER10_MMCRA_IFM1 0x0000000040000000UL
|
|
#define POWER10_MMCRA_IFM2 0x0000000080000000UL
|
|
#define POWER10_MMCRA_IFM3 0x00000000C0000000UL
|
|
#define POWER10_MMCRA_BHRB_MASK 0x00000000C0000000UL
|
|
|
|
extern u64 PERF_REG_EXTENDED_MASK;
|
|
|
|
/* Table of alternatives, sorted by column 0 */
|
|
static const unsigned int power10_event_alternatives[][MAX_ALT] = {
|
|
{ PM_INST_CMPL_ALT, PM_INST_CMPL },
|
|
{ PM_CYC_ALT, PM_CYC },
|
|
};
|
|
|
|
static int power10_get_alternatives(u64 event, unsigned int flags, u64 alt[])
|
|
{
|
|
int num_alt = 0;
|
|
|
|
num_alt = isa207_get_alternatives(event, alt,
|
|
ARRAY_SIZE(power10_event_alternatives), flags,
|
|
power10_event_alternatives);
|
|
|
|
return num_alt;
|
|
}
|
|
|
|
static int power10_check_attr_config(struct perf_event *ev)
|
|
{
|
|
u64 val;
|
|
u64 event = ev->attr.config;
|
|
|
|
val = (event >> EVENT_SAMPLE_SHIFT) & EVENT_SAMPLE_MASK;
|
|
if (val == 0x10 || isa3XX_check_attr_config(ev))
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GENERIC_EVENT_ATTR(cpu-cycles, PM_CYC);
|
|
GENERIC_EVENT_ATTR(instructions, PM_INST_CMPL);
|
|
GENERIC_EVENT_ATTR(branch-instructions, PM_BR_CMPL);
|
|
GENERIC_EVENT_ATTR(branch-misses, PM_BR_MPRED_CMPL);
|
|
GENERIC_EVENT_ATTR(cache-references, PM_LD_REF_L1);
|
|
GENERIC_EVENT_ATTR(cache-misses, PM_LD_MISS_L1);
|
|
GENERIC_EVENT_ATTR(mem-loads, MEM_LOADS);
|
|
GENERIC_EVENT_ATTR(mem-stores, MEM_STORES);
|
|
GENERIC_EVENT_ATTR(branch-instructions, PM_BR_FIN);
|
|
GENERIC_EVENT_ATTR(branch-misses, PM_MPRED_BR_FIN);
|
|
GENERIC_EVENT_ATTR(cache-misses, PM_LD_DEMAND_MISS_L1_FIN);
|
|
|
|
CACHE_EVENT_ATTR(L1-dcache-load-misses, PM_LD_MISS_L1);
|
|
CACHE_EVENT_ATTR(L1-dcache-loads, PM_LD_REF_L1);
|
|
CACHE_EVENT_ATTR(L1-dcache-prefetches, PM_LD_PREFETCH_CACHE_LINE_MISS);
|
|
CACHE_EVENT_ATTR(L1-dcache-store-misses, PM_ST_MISS_L1);
|
|
CACHE_EVENT_ATTR(L1-icache-load-misses, PM_L1_ICACHE_MISS);
|
|
CACHE_EVENT_ATTR(L1-icache-loads, PM_INST_FROM_L1);
|
|
CACHE_EVENT_ATTR(L1-icache-prefetches, PM_IC_PREF_REQ);
|
|
CACHE_EVENT_ATTR(LLC-load-misses, PM_DATA_FROM_L3MISS);
|
|
CACHE_EVENT_ATTR(LLC-loads, PM_DATA_FROM_L3);
|
|
CACHE_EVENT_ATTR(LLC-prefetches, PM_L3_PF_MISS_L3);
|
|
CACHE_EVENT_ATTR(LLC-store-misses, PM_L2_ST_MISS);
|
|
CACHE_EVENT_ATTR(LLC-stores, PM_L2_ST);
|
|
CACHE_EVENT_ATTR(branch-load-misses, PM_BR_MPRED_CMPL);
|
|
CACHE_EVENT_ATTR(branch-loads, PM_BR_CMPL);
|
|
CACHE_EVENT_ATTR(dTLB-load-misses, PM_DTLB_MISS);
|
|
CACHE_EVENT_ATTR(iTLB-load-misses, PM_ITLB_MISS);
|
|
|
|
static struct attribute *power10_events_attr_dd1[] = {
|
|
GENERIC_EVENT_PTR(PM_CYC),
|
|
GENERIC_EVENT_PTR(PM_INST_CMPL),
|
|
GENERIC_EVENT_PTR(PM_BR_CMPL),
|
|
GENERIC_EVENT_PTR(PM_BR_MPRED_CMPL),
|
|
GENERIC_EVENT_PTR(PM_LD_REF_L1),
|
|
GENERIC_EVENT_PTR(PM_LD_MISS_L1),
|
|
GENERIC_EVENT_PTR(MEM_LOADS),
|
|
GENERIC_EVENT_PTR(MEM_STORES),
|
|
CACHE_EVENT_PTR(PM_LD_MISS_L1),
|
|
CACHE_EVENT_PTR(PM_LD_REF_L1),
|
|
CACHE_EVENT_PTR(PM_LD_PREFETCH_CACHE_LINE_MISS),
|
|
CACHE_EVENT_PTR(PM_ST_MISS_L1),
|
|
CACHE_EVENT_PTR(PM_L1_ICACHE_MISS),
|
|
CACHE_EVENT_PTR(PM_INST_FROM_L1),
|
|
CACHE_EVENT_PTR(PM_IC_PREF_REQ),
|
|
CACHE_EVENT_PTR(PM_DATA_FROM_L3MISS),
|
|
CACHE_EVENT_PTR(PM_DATA_FROM_L3),
|
|
CACHE_EVENT_PTR(PM_BR_MPRED_CMPL),
|
|
CACHE_EVENT_PTR(PM_BR_CMPL),
|
|
CACHE_EVENT_PTR(PM_DTLB_MISS),
|
|
CACHE_EVENT_PTR(PM_ITLB_MISS),
|
|
NULL
|
|
};
|
|
|
|
static struct attribute *power10_events_attr[] = {
|
|
GENERIC_EVENT_PTR(PM_CYC),
|
|
GENERIC_EVENT_PTR(PM_INST_CMPL),
|
|
GENERIC_EVENT_PTR(PM_BR_FIN),
|
|
GENERIC_EVENT_PTR(PM_MPRED_BR_FIN),
|
|
GENERIC_EVENT_PTR(PM_LD_REF_L1),
|
|
GENERIC_EVENT_PTR(PM_LD_DEMAND_MISS_L1_FIN),
|
|
GENERIC_EVENT_PTR(MEM_LOADS),
|
|
GENERIC_EVENT_PTR(MEM_STORES),
|
|
CACHE_EVENT_PTR(PM_LD_MISS_L1),
|
|
CACHE_EVENT_PTR(PM_LD_REF_L1),
|
|
CACHE_EVENT_PTR(PM_LD_PREFETCH_CACHE_LINE_MISS),
|
|
CACHE_EVENT_PTR(PM_ST_MISS_L1),
|
|
CACHE_EVENT_PTR(PM_L1_ICACHE_MISS),
|
|
CACHE_EVENT_PTR(PM_INST_FROM_L1),
|
|
CACHE_EVENT_PTR(PM_IC_PREF_REQ),
|
|
CACHE_EVENT_PTR(PM_DATA_FROM_L3MISS),
|
|
CACHE_EVENT_PTR(PM_DATA_FROM_L3),
|
|
CACHE_EVENT_PTR(PM_L3_PF_MISS_L3),
|
|
CACHE_EVENT_PTR(PM_L2_ST_MISS),
|
|
CACHE_EVENT_PTR(PM_L2_ST),
|
|
CACHE_EVENT_PTR(PM_BR_MPRED_CMPL),
|
|
CACHE_EVENT_PTR(PM_BR_CMPL),
|
|
CACHE_EVENT_PTR(PM_DTLB_MISS),
|
|
CACHE_EVENT_PTR(PM_ITLB_MISS),
|
|
NULL
|
|
};
|
|
|
|
static const struct attribute_group power10_pmu_events_group_dd1 = {
|
|
.name = "events",
|
|
.attrs = power10_events_attr_dd1,
|
|
};
|
|
|
|
static const struct attribute_group power10_pmu_events_group = {
|
|
.name = "events",
|
|
.attrs = power10_events_attr,
|
|
};
|
|
|
|
PMU_FORMAT_ATTR(event, "config:0-59");
|
|
PMU_FORMAT_ATTR(pmcxsel, "config:0-7");
|
|
PMU_FORMAT_ATTR(mark, "config:8");
|
|
PMU_FORMAT_ATTR(combine, "config:10-11");
|
|
PMU_FORMAT_ATTR(unit, "config:12-15");
|
|
PMU_FORMAT_ATTR(pmc, "config:16-19");
|
|
PMU_FORMAT_ATTR(cache_sel, "config:20-21");
|
|
PMU_FORMAT_ATTR(sdar_mode, "config:22-23");
|
|
PMU_FORMAT_ATTR(sample_mode, "config:24-28");
|
|
PMU_FORMAT_ATTR(thresh_sel, "config:29-31");
|
|
PMU_FORMAT_ATTR(thresh_stop, "config:32-35");
|
|
PMU_FORMAT_ATTR(thresh_start, "config:36-39");
|
|
PMU_FORMAT_ATTR(l2l3_sel, "config:40-44");
|
|
PMU_FORMAT_ATTR(src_sel, "config:45-46");
|
|
PMU_FORMAT_ATTR(invert_bit, "config:47");
|
|
PMU_FORMAT_ATTR(src_mask, "config:48-53");
|
|
PMU_FORMAT_ATTR(src_match, "config:54-59");
|
|
PMU_FORMAT_ATTR(radix_scope, "config:9");
|
|
PMU_FORMAT_ATTR(thresh_cmp, "config1:0-17");
|
|
|
|
static struct attribute *power10_pmu_format_attr[] = {
|
|
&format_attr_event.attr,
|
|
&format_attr_pmcxsel.attr,
|
|
&format_attr_mark.attr,
|
|
&format_attr_combine.attr,
|
|
&format_attr_unit.attr,
|
|
&format_attr_pmc.attr,
|
|
&format_attr_cache_sel.attr,
|
|
&format_attr_sdar_mode.attr,
|
|
&format_attr_sample_mode.attr,
|
|
&format_attr_thresh_sel.attr,
|
|
&format_attr_thresh_stop.attr,
|
|
&format_attr_thresh_start.attr,
|
|
&format_attr_l2l3_sel.attr,
|
|
&format_attr_src_sel.attr,
|
|
&format_attr_invert_bit.attr,
|
|
&format_attr_src_mask.attr,
|
|
&format_attr_src_match.attr,
|
|
&format_attr_radix_scope.attr,
|
|
&format_attr_thresh_cmp.attr,
|
|
NULL,
|
|
};
|
|
|
|
static const struct attribute_group power10_pmu_format_group = {
|
|
.name = "format",
|
|
.attrs = power10_pmu_format_attr,
|
|
};
|
|
|
|
static struct attribute *power10_pmu_caps_attrs[] = {
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group power10_pmu_caps_group = {
|
|
.name = "caps",
|
|
.attrs = power10_pmu_caps_attrs,
|
|
};
|
|
|
|
static const struct attribute_group *power10_pmu_attr_groups_dd1[] = {
|
|
&power10_pmu_format_group,
|
|
&power10_pmu_events_group_dd1,
|
|
&power10_pmu_caps_group,
|
|
NULL,
|
|
};
|
|
|
|
static const struct attribute_group *power10_pmu_attr_groups[] = {
|
|
&power10_pmu_format_group,
|
|
&power10_pmu_events_group,
|
|
&power10_pmu_caps_group,
|
|
NULL,
|
|
};
|
|
|
|
static int power10_generic_events_dd1[] = {
|
|
[PERF_COUNT_HW_CPU_CYCLES] = PM_CYC,
|
|
[PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_CMPL,
|
|
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BR_CMPL,
|
|
[PERF_COUNT_HW_BRANCH_MISSES] = PM_BR_MPRED_CMPL,
|
|
[PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1,
|
|
[PERF_COUNT_HW_CACHE_MISSES] = PM_LD_MISS_L1,
|
|
};
|
|
|
|
static int power10_generic_events[] = {
|
|
[PERF_COUNT_HW_CPU_CYCLES] = PM_CYC,
|
|
[PERF_COUNT_HW_INSTRUCTIONS] = PM_INST_CMPL,
|
|
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = PM_BR_FIN,
|
|
[PERF_COUNT_HW_BRANCH_MISSES] = PM_MPRED_BR_FIN,
|
|
[PERF_COUNT_HW_CACHE_REFERENCES] = PM_LD_REF_L1,
|
|
[PERF_COUNT_HW_CACHE_MISSES] = PM_LD_DEMAND_MISS_L1_FIN,
|
|
};
|
|
|
|
static u64 power10_bhrb_filter_map(u64 branch_sample_type)
|
|
{
|
|
u64 pmu_bhrb_filter = 0;
|
|
|
|
/* BHRB and regular PMU events share the same privilege state
|
|
* filter configuration. BHRB is always recorded along with a
|
|
* regular PMU event. As the privilege state filter is handled
|
|
* in the basic PMC configuration of the accompanying regular
|
|
* PMU event, we ignore any separate BHRB specific request.
|
|
*/
|
|
|
|
/* No branch filter requested */
|
|
if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY)
|
|
return pmu_bhrb_filter;
|
|
|
|
/* Invalid branch filter options - HW does not support */
|
|
if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY_RETURN)
|
|
return -1;
|
|
|
|
if (branch_sample_type & PERF_SAMPLE_BRANCH_IND_CALL) {
|
|
pmu_bhrb_filter |= POWER10_MMCRA_IFM2;
|
|
return pmu_bhrb_filter;
|
|
}
|
|
|
|
if (branch_sample_type & PERF_SAMPLE_BRANCH_COND) {
|
|
pmu_bhrb_filter |= POWER10_MMCRA_IFM3;
|
|
return pmu_bhrb_filter;
|
|
}
|
|
|
|
if (branch_sample_type & PERF_SAMPLE_BRANCH_CALL)
|
|
return -1;
|
|
|
|
if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY_CALL) {
|
|
pmu_bhrb_filter |= POWER10_MMCRA_IFM1;
|
|
return pmu_bhrb_filter;
|
|
}
|
|
|
|
/* Every thing else is unsupported */
|
|
return -1;
|
|
}
|
|
|
|
static void power10_config_bhrb(u64 pmu_bhrb_filter)
|
|
{
|
|
pmu_bhrb_filter &= POWER10_MMCRA_BHRB_MASK;
|
|
|
|
/* Enable BHRB filter in PMU */
|
|
mtspr(SPRN_MMCRA, (mfspr(SPRN_MMCRA) | pmu_bhrb_filter));
|
|
}
|
|
|
|
#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 power10_cache_events_dd1[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
|
|
[C(L1D)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = PM_LD_REF_L1,
|
|
[C(RESULT_MISS)] = PM_LD_MISS_L1,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = 0,
|
|
[C(RESULT_MISS)] = PM_ST_MISS_L1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = PM_LD_PREFETCH_CACHE_LINE_MISS,
|
|
[C(RESULT_MISS)] = 0,
|
|
},
|
|
},
|
|
[C(L1I)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = PM_INST_FROM_L1,
|
|
[C(RESULT_MISS)] = PM_L1_ICACHE_MISS,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = PM_INST_FROM_L1MISS,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = PM_IC_PREF_REQ,
|
|
[C(RESULT_MISS)] = 0,
|
|
},
|
|
},
|
|
[C(LL)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = PM_DATA_FROM_L3,
|
|
[C(RESULT_MISS)] = PM_DATA_FROM_L3MISS,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = 0,
|
|
},
|
|
},
|
|
[C(DTLB)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = 0,
|
|
[C(RESULT_MISS)] = PM_DTLB_MISS,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
},
|
|
[C(ITLB)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = 0,
|
|
[C(RESULT_MISS)] = PM_ITLB_MISS,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
},
|
|
[C(BPU)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = PM_BR_CMPL,
|
|
[C(RESULT_MISS)] = PM_BR_MPRED_CMPL,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
},
|
|
[C(NODE)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
},
|
|
};
|
|
|
|
static u64 power10_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
|
|
[C(L1D)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = PM_LD_REF_L1,
|
|
[C(RESULT_MISS)] = PM_LD_MISS_L1,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = 0,
|
|
[C(RESULT_MISS)] = PM_ST_MISS_L1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = PM_LD_PREFETCH_CACHE_LINE_MISS,
|
|
[C(RESULT_MISS)] = 0,
|
|
},
|
|
},
|
|
[C(L1I)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = PM_INST_FROM_L1,
|
|
[C(RESULT_MISS)] = PM_L1_ICACHE_MISS,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = PM_INST_FROM_L1MISS,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = PM_IC_PREF_REQ,
|
|
[C(RESULT_MISS)] = 0,
|
|
},
|
|
},
|
|
[C(LL)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = PM_DATA_FROM_L3,
|
|
[C(RESULT_MISS)] = PM_DATA_FROM_L3MISS,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = PM_L2_ST,
|
|
[C(RESULT_MISS)] = PM_L2_ST_MISS,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = PM_L3_PF_MISS_L3,
|
|
[C(RESULT_MISS)] = 0,
|
|
},
|
|
},
|
|
[C(DTLB)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = 0,
|
|
[C(RESULT_MISS)] = PM_DTLB_MISS,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
},
|
|
[C(ITLB)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = 0,
|
|
[C(RESULT_MISS)] = PM_ITLB_MISS,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
},
|
|
[C(BPU)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = PM_BR_CMPL,
|
|
[C(RESULT_MISS)] = PM_BR_MPRED_CMPL,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
},
|
|
[C(NODE)] = {
|
|
[C(OP_READ)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_WRITE)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
[C(OP_PREFETCH)] = {
|
|
[C(RESULT_ACCESS)] = -1,
|
|
[C(RESULT_MISS)] = -1,
|
|
},
|
|
},
|
|
};
|
|
|
|
#undef C
|
|
|
|
/*
|
|
* Set the MMCR0[CC56RUN] bit to enable counting for
|
|
* PMC5 and PMC6 regardless of the state of CTRL[RUN],
|
|
* so that we can use counters 5 and 6 as PM_INST_CMPL and
|
|
* PM_CYC.
|
|
*/
|
|
static int power10_compute_mmcr(u64 event[], int n_ev,
|
|
unsigned int hwc[], struct mmcr_regs *mmcr,
|
|
struct perf_event *pevents[], u32 flags)
|
|
{
|
|
int ret;
|
|
|
|
ret = isa207_compute_mmcr(event, n_ev, hwc, mmcr, pevents, flags);
|
|
if (!ret)
|
|
mmcr->mmcr0 |= MMCR0_C56RUN;
|
|
return ret;
|
|
}
|
|
|
|
static struct power_pmu power10_pmu = {
|
|
.name = "POWER10",
|
|
.n_counter = MAX_PMU_COUNTERS,
|
|
.add_fields = ISA207_ADD_FIELDS,
|
|
.test_adder = ISA207_TEST_ADDER,
|
|
.group_constraint_mask = CNST_CACHE_PMC4_MASK,
|
|
.group_constraint_val = CNST_CACHE_PMC4_VAL,
|
|
.compute_mmcr = power10_compute_mmcr,
|
|
.config_bhrb = power10_config_bhrb,
|
|
.bhrb_filter_map = power10_bhrb_filter_map,
|
|
.get_constraint = isa207_get_constraint,
|
|
.get_alternatives = power10_get_alternatives,
|
|
.get_mem_data_src = isa207_get_mem_data_src,
|
|
.get_mem_weight = isa207_get_mem_weight,
|
|
.disable_pmc = isa207_disable_pmc,
|
|
.flags = PPMU_HAS_SIER | PPMU_ARCH_207S |
|
|
PPMU_ARCH_31 | PPMU_HAS_ATTR_CONFIG1 |
|
|
PPMU_P10,
|
|
.n_generic = ARRAY_SIZE(power10_generic_events),
|
|
.generic_events = power10_generic_events,
|
|
.cache_events = &power10_cache_events,
|
|
.attr_groups = power10_pmu_attr_groups,
|
|
.bhrb_nr = 32,
|
|
.capabilities = PERF_PMU_CAP_EXTENDED_REGS,
|
|
.check_attr_config = power10_check_attr_config,
|
|
};
|
|
|
|
int __init init_power10_pmu(void)
|
|
{
|
|
unsigned int pvr;
|
|
int rc;
|
|
|
|
pvr = mfspr(SPRN_PVR);
|
|
if (PVR_VER(pvr) != PVR_POWER10)
|
|
return -ENODEV;
|
|
|
|
/* Add the ppmu flag for power10 DD1 */
|
|
if ((PVR_CFG(pvr) == 1))
|
|
power10_pmu.flags |= PPMU_P10_DD1;
|
|
|
|
/* Set the PERF_REG_EXTENDED_MASK here */
|
|
PERF_REG_EXTENDED_MASK = PERF_REG_PMU_MASK_31;
|
|
|
|
if ((PVR_CFG(pvr) == 1)) {
|
|
power10_pmu.generic_events = power10_generic_events_dd1;
|
|
power10_pmu.attr_groups = power10_pmu_attr_groups_dd1;
|
|
power10_pmu.cache_events = &power10_cache_events_dd1;
|
|
}
|
|
|
|
rc = register_power_pmu(&power10_pmu);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* Tell userspace that EBB is supported */
|
|
cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_EBB;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct power_pmu power11_pmu;
|
|
|
|
int __init init_power11_pmu(void)
|
|
{
|
|
unsigned int pvr;
|
|
int rc;
|
|
|
|
pvr = mfspr(SPRN_PVR);
|
|
if (PVR_VER(pvr) != PVR_POWER11)
|
|
return -ENODEV;
|
|
|
|
/* Set the PERF_REG_EXTENDED_MASK here */
|
|
PERF_REG_EXTENDED_MASK = PERF_REG_PMU_MASK_31;
|
|
|
|
power11_pmu = power10_pmu;
|
|
power11_pmu.name = "Power11";
|
|
|
|
rc = register_power_pmu(&power11_pmu);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* Tell userspace that EBB is supported */
|
|
cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_EBB;
|
|
|
|
return 0;
|
|
}
|