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authorLinus Torvalds <torvalds@linux-foundation.org>2025-01-21 10:52:03 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-01-21 10:52:03 -0800
commit6c4aa896ebee5edf2b35a9d071e5a468797f96d8 (patch)
treebe4307f37214a440755fb5791ca13a1da0499049 /arch
parenta6640c8c2fc029f015c87672585931c6106971c1 (diff)
parentb709eb872e19a19607bbb6d2975bc264d59735cf (diff)
Merge tag 'perf-core-2025-01-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar: "Seqlock optimizations that arose in a perf context and were merged into the perf tree: - seqlock: Add raw_seqcount_try_begin (Suren Baghdasaryan) - mm: Convert mm_lock_seq to a proper seqcount (Suren Baghdasaryan) - mm: Introduce mmap_lock_speculate_{try_begin|retry} (Suren Baghdasaryan) - mm/gup: Use raw_seqcount_try_begin() (Peter Zijlstra) Core perf enhancements: - Reduce 'struct page' footprint of perf by mapping pages in advance (Lorenzo Stoakes) - Save raw sample data conditionally based on sample type (Yabin Cui) - Reduce sampling overhead by checking sample_type in perf_sample_save_callchain() and perf_sample_save_brstack() (Yabin Cui) - Export perf_exclude_event() (Namhyung Kim) Uprobes scalability enhancements: (Andrii Nakryiko) - Simplify find_active_uprobe_rcu() VMA checks - Add speculative lockless VMA-to-inode-to-uprobe resolution - Simplify session consumer tracking - Decouple return_instance list traversal and freeing - Ensure return_instance is detached from the list before freeing - Reuse return_instances between multiple uretprobes within task - Guard against kmemdup() failing in dup_return_instance() AMD core PMU driver enhancements: - Relax privilege filter restriction on AMD IBS (Namhyung Kim) AMD RAPL energy counters support: (Dhananjay Ugwekar) - Introduce topology_logical_core_id() (K Prateek Nayak) - Remove the unused get_rapl_pmu_cpumask() function - Remove the cpu_to_rapl_pmu() function - Rename rapl_pmu variables - Make rapl_model struct global - Add arguments to the init and cleanup functions - Modify the generic variable names to *_pkg* - Remove the global variable rapl_msrs - Move the cntr_mask to rapl_pmus struct - Add core energy counter support for AMD CPUs Intel core PMU driver enhancements: - Support RDPMC 'metrics clear mode' feature (Kan Liang) - Clarify adaptive PEBS processing (Kan Liang) - Factor out functions for PEBS records processing (Kan Liang) - Simplify the PEBS records processing for adaptive PEBS (Kan Liang) Intel uncore driver enhancements: (Kan Liang) - Convert buggy pmu->func_id use to pmu->registered - Support more units on Granite Rapids" * tag 'perf-core-2025-01-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) perf: map pages in advance perf/x86/intel/uncore: Support more units on Granite Rapids perf/x86/intel/uncore: Clean up func_id perf/x86/intel: Support RDPMC metrics clear mode uprobes: Guard against kmemdup() failing in dup_return_instance() perf/x86: Relax privilege filter restriction on AMD IBS perf/core: Export perf_exclude_event() uprobes: Reuse return_instances between multiple uretprobes within task uprobes: Ensure return_instance is detached from the list before freeing uprobes: Decouple return_instance list traversal and freeing uprobes: Simplify session consumer tracking uprobes: add speculative lockless VMA-to-inode-to-uprobe resolution uprobes: simplify find_active_uprobe_rcu() VMA checks mm: introduce mmap_lock_speculate_{try_begin|retry} mm: convert mm_lock_seq to a proper seqcount mm/gup: Use raw_seqcount_try_begin() seqlock: add raw_seqcount_try_begin perf/x86/rapl: Add core energy counter support for AMD CPUs perf/x86/rapl: Move the cntr_mask to rapl_pmus struct perf/x86/rapl: Remove the global variable rapl_msrs ...
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/perf_cpum_cf.c2
-rw-r--r--arch/s390/kernel/perf_cpum_sf.c6
-rw-r--r--arch/s390/kernel/perf_pai_crypto.c2
-rw-r--r--arch/s390/kernel/perf_pai_ext.c2
-rw-r--r--arch/x86/events/amd/core.c3
-rw-r--r--arch/x86/events/amd/ibs.c64
-rw-r--r--arch/x86/events/core.c3
-rw-r--r--arch/x86/events/intel/core.c20
-rw-r--r--arch/x86/events/intel/ds.c198
-rw-r--r--arch/x86/events/intel/uncore.c20
-rw-r--r--arch/x86/events/intel/uncore.h1
-rw-r--r--arch/x86/events/intel/uncore_snb.c2
-rw-r--r--arch/x86/events/intel/uncore_snbep.c48
-rw-r--r--arch/x86/events/perf_event.h1
-rw-r--r--arch/x86/events/rapl.c415
-rw-r--r--arch/x86/include/asm/perf_event.h20
-rw-r--r--arch/x86/include/asm/processor.h1
-rw-r--r--arch/x86/include/asm/topology.h1
-rw-r--r--arch/x86/kernel/cpu/debugfs.c1
-rw-r--r--arch/x86/kernel/cpu/topology_common.c1
20 files changed, 514 insertions, 297 deletions
diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index b0bc68da6a11..33205dd410e4 100644
--- a/arch/s390/kernel/perf_cpum_cf.c
+++ b/arch/s390/kernel/perf_cpum_cf.c
@@ -981,7 +981,7 @@ static int cfdiag_push_sample(struct perf_event *event,
if (event->attr.sample_type & PERF_SAMPLE_RAW) {
raw.frag.size = cpuhw->usedss;
raw.frag.data = cpuhw->stop;
- perf_sample_save_raw_data(&data, &raw);
+ perf_sample_save_raw_data(&data, event, &raw);
}
overflow = perf_event_overflow(event, &data, &regs);
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index 1e99514fb7ae..5f60248cb468 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -981,7 +981,7 @@ static void cpumsf_pmu_disable(struct pmu *pmu)
cpuhw->flags &= ~PMU_F_ENABLED;
}
-/* perf_exclude_event() - Filter event
+/* perf_event_exclude() - Filter event
* @event: The perf event
* @regs: pt_regs structure
* @sde_regs: Sample-data-entry (sde) regs structure
@@ -990,7 +990,7 @@ static void cpumsf_pmu_disable(struct pmu *pmu)
*
* Return non-zero if the event shall be excluded.
*/
-static int perf_exclude_event(struct perf_event *event, struct pt_regs *regs,
+static int perf_event_exclude(struct perf_event *event, struct pt_regs *regs,
struct perf_sf_sde_regs *sde_regs)
{
if (event->attr.exclude_user && user_mode(regs))
@@ -1073,7 +1073,7 @@ static int perf_push_sample(struct perf_event *event,
data.tid_entry.pid = basic->hpp & LPP_PID_MASK;
overflow = 0;
- if (perf_exclude_event(event, &regs, sde_regs))
+ if (perf_event_exclude(event, &regs, sde_regs))
goto out;
if (perf_event_overflow(event, &data, &regs)) {
overflow = 1;
diff --git a/arch/s390/kernel/perf_pai_crypto.c b/arch/s390/kernel/perf_pai_crypto.c
index fa7325454266..10725f5a6f0f 100644
--- a/arch/s390/kernel/perf_pai_crypto.c
+++ b/arch/s390/kernel/perf_pai_crypto.c
@@ -478,7 +478,7 @@ static int paicrypt_push_sample(size_t rawsize, struct paicrypt_map *cpump,
if (event->attr.sample_type & PERF_SAMPLE_RAW) {
raw.frag.size = rawsize;
raw.frag.data = cpump->save;
- perf_sample_save_raw_data(&data, &raw);
+ perf_sample_save_raw_data(&data, event, &raw);
}
overflow = perf_event_overflow(event, &data, &regs);
diff --git a/arch/s390/kernel/perf_pai_ext.c b/arch/s390/kernel/perf_pai_ext.c
index 7f462bef1fc0..a8f0bad99cf0 100644
--- a/arch/s390/kernel/perf_pai_ext.c
+++ b/arch/s390/kernel/perf_pai_ext.c
@@ -503,7 +503,7 @@ static int paiext_push_sample(size_t rawsize, struct paiext_map *cpump,
if (event->attr.sample_type & PERF_SAMPLE_RAW) {
raw.frag.size = rawsize;
raw.frag.data = cpump->save;
- perf_sample_save_raw_data(&data, &raw);
+ perf_sample_save_raw_data(&data, event, &raw);
}
overflow = perf_event_overflow(event, &data, &regs);
diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
index b4a1a2576510..30d6ceb4c8ad 100644
--- a/arch/x86/events/amd/core.c
+++ b/arch/x86/events/amd/core.c
@@ -1001,8 +1001,7 @@ static int amd_pmu_v2_handle_irq(struct pt_regs *regs)
if (!x86_perf_event_set_period(event))
continue;
- if (has_branch_stack(event))
- perf_sample_save_brstack(&data, event, &cpuc->lbr_stack, NULL);
+ perf_sample_save_brstack(&data, event, &cpuc->lbr_stack, NULL);
if (perf_event_overflow(event, &data, regs))
x86_pmu_stop(event, 0);
diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
index e91970b01d62..e7a8b8758e08 100644
--- a/arch/x86/events/amd/ibs.c
+++ b/arch/x86/events/amd/ibs.c
@@ -31,6 +31,8 @@ static u32 ibs_caps;
#define IBS_FETCH_CONFIG_MASK (IBS_FETCH_RAND_EN | IBS_FETCH_MAX_CNT)
#define IBS_OP_CONFIG_MASK IBS_OP_MAX_CNT
+/* attr.config2 */
+#define IBS_SW_FILTER_MASK 1
/*
* IBS states:
@@ -290,6 +292,16 @@ static int perf_ibs_init(struct perf_event *event)
if (has_branch_stack(event))
return -EOPNOTSUPP;
+ /* handle exclude_{user,kernel} in the IRQ handler */
+ if (event->attr.exclude_host || event->attr.exclude_guest ||
+ event->attr.exclude_idle)
+ return -EINVAL;
+
+ if (!(event->attr.config2 & IBS_SW_FILTER_MASK) &&
+ (event->attr.exclude_kernel || event->attr.exclude_user ||
+ event->attr.exclude_hv))
+ return -EINVAL;
+
ret = validate_group(event);
if (ret)
return ret;
@@ -550,24 +562,14 @@ static struct attribute *attrs_empty[] = {
NULL,
};
-static struct attribute_group empty_format_group = {
- .name = "format",
- .attrs = attrs_empty,
-};
-
static struct attribute_group empty_caps_group = {
.name = "caps",
.attrs = attrs_empty,
};
-static const struct attribute_group *empty_attr_groups[] = {
- &empty_format_group,
- &empty_caps_group,
- NULL,
-};
-
PMU_FORMAT_ATTR(rand_en, "config:57");
PMU_FORMAT_ATTR(cnt_ctl, "config:19");
+PMU_FORMAT_ATTR(swfilt, "config2:0");
PMU_EVENT_ATTR_STRING(l3missonly, fetch_l3missonly, "config:59");
PMU_EVENT_ATTR_STRING(l3missonly, op_l3missonly, "config:16");
PMU_EVENT_ATTR_STRING(zen4_ibs_extensions, zen4_ibs_extensions, "1");
@@ -578,8 +580,9 @@ zen4_ibs_extensions_is_visible(struct kobject *kobj, struct attribute *attr, int
return ibs_caps & IBS_CAPS_ZEN4 ? attr->mode : 0;
}
-static struct attribute *rand_en_attrs[] = {
+static struct attribute *fetch_attrs[] = {
&format_attr_rand_en.attr,
+ &format_attr_swfilt.attr,
NULL,
};
@@ -593,9 +596,9 @@ static struct attribute *zen4_ibs_extensions_attrs[] = {
NULL,
};
-static struct attribute_group group_rand_en = {
+static struct attribute_group group_fetch_formats = {
.name = "format",
- .attrs = rand_en_attrs,
+ .attrs = fetch_attrs,
};
static struct attribute_group group_fetch_l3missonly = {
@@ -611,7 +614,7 @@ static struct attribute_group group_zen4_ibs_extensions = {
};
static const struct attribute_group *fetch_attr_groups[] = {
- &group_rand_en,
+ &group_fetch_formats,
&empty_caps_group,
NULL,
};
@@ -628,6 +631,11 @@ cnt_ctl_is_visible(struct kobject *kobj, struct attribute *attr, int i)
return ibs_caps & IBS_CAPS_OPCNT ? attr->mode : 0;
}
+static struct attribute *op_attrs[] = {
+ &format_attr_swfilt.attr,
+ NULL,
+};
+
static struct attribute *cnt_ctl_attrs[] = {
&format_attr_cnt_ctl.attr,
NULL,
@@ -638,6 +646,11 @@ static struct attribute *op_l3missonly_attrs[] = {
NULL,
};
+static struct attribute_group group_op_formats = {
+ .name = "format",
+ .attrs = op_attrs,
+};
+
static struct attribute_group group_cnt_ctl = {
.name = "format",
.attrs = cnt_ctl_attrs,
@@ -650,6 +663,12 @@ static struct attribute_group group_op_l3missonly = {
.is_visible = zen4_ibs_extensions_is_visible,
};
+static const struct attribute_group *op_attr_groups[] = {
+ &group_op_formats,
+ &empty_caps_group,
+ NULL,
+};
+
static const struct attribute_group *op_attr_update[] = {
&group_cnt_ctl,
&group_op_l3missonly,
@@ -667,7 +686,6 @@ static struct perf_ibs perf_ibs_fetch = {
.start = perf_ibs_start,
.stop = perf_ibs_stop,
.read = perf_ibs_read,
- .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
},
.msr = MSR_AMD64_IBSFETCHCTL,
.config_mask = IBS_FETCH_CONFIG_MASK,
@@ -691,7 +709,6 @@ static struct perf_ibs perf_ibs_op = {
.start = perf_ibs_start,
.stop = perf_ibs_stop,
.read = perf_ibs_read,
- .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
},
.msr = MSR_AMD64_IBSOPCTL,
.config_mask = IBS_OP_CONFIG_MASK,
@@ -1111,6 +1128,12 @@ fail:
regs.flags |= PERF_EFLAGS_EXACT;
}
+ if ((event->attr.config2 & IBS_SW_FILTER_MASK) &&
+ perf_exclude_event(event, &regs)) {
+ throttle = perf_event_account_interrupt(event);
+ goto out;
+ }
+
if (event->attr.sample_type & PERF_SAMPLE_RAW) {
raw = (struct perf_raw_record){
.frag = {
@@ -1118,7 +1141,7 @@ fail:
.data = ibs_data.data,
},
};
- perf_sample_save_raw_data(&data, &raw);
+ perf_sample_save_raw_data(&data, event, &raw);
}
if (perf_ibs == &perf_ibs_op)
@@ -1129,8 +1152,7 @@ fail:
* recorded as part of interrupt regs. Thus we need to use rip from
* interrupt regs while unwinding call stack.
*/
- if (event->attr.sample_type & PERF_SAMPLE_CALLCHAIN)
- perf_sample_save_callchain(&data, event, iregs);
+ perf_sample_save_callchain(&data, event, iregs);
throttle = perf_event_overflow(event, &data, &regs);
out:
@@ -1228,7 +1250,7 @@ static __init int perf_ibs_op_init(void)
if (ibs_caps & IBS_CAPS_ZEN4)
perf_ibs_op.config_mask |= IBS_OP_L3MISSONLY;
- perf_ibs_op.pmu.attr_groups = empty_attr_groups;
+ perf_ibs_op.pmu.attr_groups = op_attr_groups;
perf_ibs_op.pmu.attr_update = op_attr_update;
return perf_ibs_pmu_init(&perf_ibs_op, "ibs_op");
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index c75c482d4c52..8f218ac0d445 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -1707,8 +1707,7 @@ int x86_pmu_handle_irq(struct pt_regs *regs)
perf_sample_data_init(&data, 0, event->hw.last_period);
- if (has_branch_stack(event))
- perf_sample_save_brstack(&data, event, &cpuc->lbr_stack, NULL);
+ perf_sample_save_brstack(&data, event, &cpuc->lbr_stack, NULL);
if (perf_event_overflow(event, &data, regs))
x86_pmu_stop(event, 0);
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 66ecfc884076..7601196d1d18 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -2826,6 +2826,9 @@ static void intel_pmu_enable_fixed(struct perf_event *event)
return;
idx = INTEL_PMC_IDX_FIXED_SLOTS;
+
+ if (event->attr.config1 & INTEL_TD_CFG_METRIC_CLEAR)
+ bits |= INTEL_FIXED_3_METRICS_CLEAR;
}
intel_set_masks(event, idx);
@@ -4081,7 +4084,12 @@ static int intel_pmu_hw_config(struct perf_event *event)
* is used in a metrics group, it too cannot support sampling.
*/
if (intel_pmu_has_cap(event, PERF_CAP_METRICS_IDX) && is_topdown_event(event)) {
- if (event->attr.config1 || event->attr.config2)
+ /* The metrics_clear can only be set for the slots event */
+ if (event->attr.config1 &&
+ (!is_slots_event(event) || (event->attr.config1 & ~INTEL_TD_CFG_METRIC_CLEAR)))
+ return -EINVAL;
+
+ if (event->attr.config2)
return -EINVAL;
/*
@@ -4690,6 +4698,8 @@ PMU_FORMAT_ATTR(in_tx, "config:32" );
PMU_FORMAT_ATTR(in_tx_cp, "config:33" );
PMU_FORMAT_ATTR(eq, "config:36" ); /* v6 + */
+PMU_FORMAT_ATTR(metrics_clear, "config1:0"); /* PERF_CAPABILITIES.RDPMC_METRICS_CLEAR */
+
static ssize_t umask2_show(struct device *dev,
struct device_attribute *attr,
char *page)
@@ -4709,6 +4719,7 @@ static struct device_attribute format_attr_umask2 =
static struct attribute *format_evtsel_ext_attrs[] = {
&format_attr_umask2.attr,
&format_attr_eq.attr,
+ &format_attr_metrics_clear.attr,
NULL
};
@@ -4733,6 +4744,13 @@ evtsel_ext_is_visible(struct kobject *kobj, struct attribute *attr, int i)
if (i == 1)
return (mask & ARCH_PERFMON_EVENTSEL_EQ) ? attr->mode : 0;
+ /* PERF_CAPABILITIES.RDPMC_METRICS_CLEAR */
+ if (i == 2) {
+ union perf_capabilities intel_cap = hybrid(dev_get_drvdata(dev), intel_cap);
+
+ return intel_cap.rdpmc_metrics_clear ? attr->mode : 0;
+ }
+
return 0;
}
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index 6ba6549f26fa..ba74e1198328 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -1789,8 +1789,7 @@ static void setup_pebs_fixed_sample_data(struct perf_event *event,
* previous PMI context or an (I)RET happened between the record and
* PMI.
*/
- if (sample_type & PERF_SAMPLE_CALLCHAIN)
- perf_sample_save_callchain(data, event, iregs);
+ perf_sample_save_callchain(data, event, iregs);
/*
* We use the interrupt regs as a base because the PEBS record does not
@@ -1889,8 +1888,7 @@ static void setup_pebs_fixed_sample_data(struct perf_event *event,
if (x86_pmu.intel_cap.pebs_format >= 3)
setup_pebs_time(event, data, pebs->tsc);
- if (has_branch_stack(event))
- perf_sample_save_brstack(data, event, &cpuc->lbr_stack, NULL);
+ perf_sample_save_brstack(data, event, &cpuc->lbr_stack, NULL);
}
static void adaptive_pebs_save_regs(struct pt_regs *regs,
@@ -1917,8 +1915,6 @@ static void adaptive_pebs_save_regs(struct pt_regs *regs,
}
#define PEBS_LATENCY_MASK 0xffff
-#define PEBS_CACHE_LATENCY_OFFSET 32
-#define PEBS_RETIRE_LATENCY_OFFSET 32
/*
* With adaptive PEBS the layout depends on what fields are configured.
@@ -1932,8 +1928,7 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
struct pebs_basic *basic = __pebs;
void *next_record = basic + 1;
- u64 sample_type;
- u64 format_size;
+ u64 sample_type, format_group;
struct pebs_meminfo *meminfo = NULL;
struct pebs_gprs *gprs = NULL;
struct x86_perf_regs *perf_regs;
@@ -1945,7 +1940,7 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
perf_regs->xmm_regs = NULL;
sample_type = event->attr.sample_type;
- format_size = basic->format_size;
+ format_group = basic->format_group;
perf_sample_data_init(data, 0, event->hw.last_period);
data->period = event->hw.last_period;
@@ -1957,8 +1952,7 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
* previous PMI context or an (I)RET happened between the record and
* PMI.
*/
- if (sample_type & PERF_SAMPLE_CALLCHAIN)
- perf_sample_save_callchain(data, event, iregs);
+ perf_sample_save_callchain(data, event, iregs);
*regs = *iregs;
/* The ip in basic is EventingIP */
@@ -1967,7 +1961,7 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
if (sample_type & PERF_SAMPLE_WEIGHT_STRUCT) {
if (x86_pmu.flags & PMU_FL_RETIRE_LATENCY)
- data->weight.var3_w = format_size >> PEBS_RETIRE_LATENCY_OFFSET & PEBS_LATENCY_MASK;
+ data->weight.var3_w = basic->retire_latency;
else
data->weight.var3_w = 0;
}
@@ -1977,12 +1971,12 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
* But PERF_SAMPLE_TRANSACTION needs gprs->ax.
* Save the pointer here but process later.
*/
- if (format_size & PEBS_DATACFG_MEMINFO) {
+ if (format_group & PEBS_DATACFG_MEMINFO) {
meminfo = next_record;
next_record = meminfo + 1;
}
- if (format_size & PEBS_DATACFG_GP) {
+ if (format_group & PEBS_DATACFG_GP) {
gprs = next_record;
next_record = gprs + 1;
@@ -1995,14 +1989,13 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
adaptive_pebs_save_regs(regs, gprs);
}
- if (format_size & PEBS_DATACFG_MEMINFO) {
+ if (format_group & PEBS_DATACFG_MEMINFO) {
if (sample_type & PERF_SAMPLE_WEIGHT_TYPE) {
- u64 weight = meminfo->latency;
+ u64 latency = x86_pmu.flags & PMU_FL_INSTR_LATENCY ?
+ meminfo->cache_latency : meminfo->mem_latency;
- if (x86_pmu.flags & PMU_FL_INSTR_LATENCY) {
- data->weight.var2_w = weight & PEBS_LATENCY_MASK;
- weight >>= PEBS_CACHE_LATENCY_OFFSET;
- }
+ if (x86_pmu.flags & PMU_FL_INSTR_LATENCY)
+ data->weight.var2_w = meminfo->instr_latency;
/*
* Although meminfo::latency is defined as a u64,
@@ -2010,12 +2003,13 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
* in practice on Ice Lake and earlier platforms.
*/
if (sample_type & PERF_SAMPLE_WEIGHT) {
- data->weight.full = weight ?:
+ data->weight.full = latency ?:
intel_get_tsx_weight(meminfo->tsx_tuning);
} else {
- data->weight.var1_dw = (u32)(weight & PEBS_LATENCY_MASK) ?:
+ data->weight.var1_dw = (u32)latency ?:
intel_get_tsx_weight(meminfo->tsx_tuning);
}
+
data->sample_flags |= PERF_SAMPLE_WEIGHT_TYPE;
}
@@ -2036,16 +2030,16 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
}
}
- if (format_size & PEBS_DATACFG_XMMS) {
+ if (format_group & PEBS_DATACFG_XMMS) {
struct pebs_xmm *xmm = next_record;
next_record = xmm + 1;
perf_regs->xmm_regs = xmm->xmm;
}
- if (format_size & PEBS_DATACFG_LBRS) {
+ if (format_group & PEBS_DATACFG_LBRS) {
struct lbr_entry *lbr = next_record;
- int num_lbr = ((format_size >> PEBS_DATACFG_LBR_SHIFT)
+ int num_lbr = ((format_group >> PEBS_DATACFG_LBR_SHIFT)
& 0xff) + 1;
next_record = next_record + num_lbr * sizeof(struct lbr_entry);
@@ -2055,11 +2049,11 @@ static void setup_pebs_adaptive_sample_data(struct perf_event *event,
}
}
- WARN_ONCE(next_record != __pebs + (format_size >> 48),
- "PEBS record size %llu, expected %llu, config %llx\n",
- format_size >> 48,
+ WARN_ONCE(next_record != __pebs + basic->format_size,
+ "PEBS record size %u, expected %llu, config %llx\n",
+ basic->format_size,
(u64)(next_record - __pebs),
- basic->format_size);
+ format_group);
}
static inline void *
@@ -2170,46 +2164,33 @@ intel_pmu_save_and_restart_reload(struct perf_event *event, int count)
return 0;
}
+typedef void (*setup_fn)(struct perf_event *, struct pt_regs *, void *,
+ struct perf_sample_data *, struct pt_regs *);
+
+static struct pt_regs dummy_iregs;
+
static __always_inline void
__intel_pmu_pebs_event(struct perf_event *event,
struct pt_regs *iregs,
+ struct pt_regs *regs,
struct perf_sample_data *data,
- void *base, void *top,
- int bit, int count,
- void (*setup_sample)(struct perf_event *,
- struct pt_regs *,
- void *,
- struct perf_sample_data *,
- struct pt_regs *))
+ void *at,
+ setup_fn setup_sample)
{
- struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
- struct hw_perf_event *hwc = &event->hw;
- struct x86_perf_regs perf_regs;
- struct pt_regs *regs = &perf_regs.regs;
- void *at = get_next_pebs_record_by_bit(base, top, bit);
- static struct pt_regs dummy_iregs;
-
- if (hwc->flags & PERF_X86_EVENT_AUTO_RELOAD) {
- /*
- * Now, auto-reload is only enabled in fixed period mode.
- * The reload value is always hwc->sample_period.
- * May need to change it, if auto-reload is enabled in
- * freq mode later.
- */
- intel_pmu_save_and_restart_reload(event, count);
- } else if (!intel_pmu_save_and_restart(event))
- return;
-
- if (!iregs)
- iregs = &dummy_iregs;
+ setup_sample(event, iregs, at, data, regs);
+ perf_event_output(event, data, regs);
+}
- while (count > 1) {
- setup_sample(event, iregs, at, data, regs);
- perf_event_output(event, data, regs);
- at += cpuc->pebs_record_size;
- at = get_next_pebs_record_by_bit(at, top, bit);
- count--;
- }
+static __always_inline void
+__intel_pmu_pebs_last_event(struct perf_event *event,
+ struct pt_regs *iregs,
+ struct pt_regs *regs,
+ struct perf_sample_data *data,
+ void *at,
+ int count,
+ setup_fn setup_sample)
+{
+ struct hw_perf_event *hwc = &event->hw;
setup_sample(event, iregs, at, data, regs);
if (iregs == &dummy_iregs) {
@@ -2228,6 +2209,44 @@ __intel_pmu_pebs_event(struct perf_event *event,
if (perf_event_overflow(event, data, regs))
x86_pmu_stop(event, 0);
}
+
+ if (hwc->flags & PERF_X86_EVENT_AUTO_RELOAD) {
+ /*
+ * Now, auto-reload is only enabled in fixed period mode.
+ * The reload value is always hwc->sample_period.
+ * May need to change it, if auto-reload is enabled in
+ * freq mode later.
+ */
+ intel_pmu_save_and_restart_reload(event, count);
+ } else
+ intel_pmu_save_and_restart(event);
+}
+
+static __always_inline void
+__intel_pmu_pebs_events(struct perf_event *event,
+ struct pt_regs *iregs,
+ struct perf_sample_data *data,
+ void *base, void *top,
+ int bit, int count,
+ setup_fn setup_sample)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct x86_perf_regs perf_regs;
+ struct pt_regs *regs = &perf_regs.regs;
+ void *at = get_next_pebs_record_by_bit(base, top, bit);
+ int cnt = count;
+
+ if (!iregs)
+ iregs = &dummy_iregs;
+
+ while (cnt > 1) {
+ __intel_pmu_pebs_event(event, iregs, regs, data, at, setup_sample);
+ at += cpuc->pebs_record_size;
+ at = get_next_pebs_record_by_bit(at, top, bit);
+ cnt--;
+ }
+
+ __intel_pmu_pebs_last_event(event, iregs, regs, data, at, count, setup_sample);
}
static void intel_pmu_drain_pebs_core(struct pt_regs *iregs, struct perf_sample_data *data)
@@ -2264,8 +2283,8 @@ static void intel_pmu_drain_pebs_core(struct pt_regs *iregs, struct perf_sample_
return;
}
- __intel_pmu_pebs_event(event, iregs, data, at, top, 0, n,
- setup_pebs_fixed_sample_data);
+ __intel_pmu_pebs_events(event, iregs, data, at, top, 0, n,
+ setup_pebs_fixed_sample_data);
}
static void intel_pmu_pebs_event_update_no_drain(struct cpu_hw_events *cpuc, int size)
@@ -2396,9 +2415,9 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs, struct perf_sample_d
}
if (counts[bit]) {
- __intel_pmu_pebs_event(event, iregs, data, base,
- top, bit, counts[bit],
- setup_pebs_fixed_sample_data);
+ __intel_pmu_pebs_events(event, iregs, data, base,
+ top, bit, counts[bit],
+ setup_pebs_fixed_sample_data);
}
}
}
@@ -2406,8 +2425,12 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs, struct perf_sample_d
static void intel_pmu_drain_pebs_icl(struct pt_regs *iregs, struct perf_sample_data *data)
{
short counts[INTEL_PMC_IDX_FIXED + MAX_FIXED_PEBS_EVENTS] = {};
+ void *last[INTEL_PMC_IDX_FIXED + MAX_FIXED_PEBS_EVENTS];
struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
struct debug_store *ds = cpuc->ds;
+ struct x86_perf_regs perf_regs;
+ struct pt_regs *regs = &perf_regs.regs;
+ struct pebs_basic *basic;
struct perf_event *event;
void *base, *at, *top;
int bit;
@@ -2429,30 +2452,41 @@ static void intel_pmu_drain_pebs_icl(struct pt_regs *iregs, struct perf_sample_d
return;
}
- for (at = base; at < top; at += cpuc->pebs_record_size) {
+ if (!iregs)
+ iregs = &dummy_iregs;
+
+ /* Process all but the last event for each counter. */
+ for (at = base; at < top; at += basic->format_size) {
u64 pebs_status;
- pebs_status = get_pebs_status(at) & cpuc->pebs_enabled;
- pebs_status &= mask;
+ basic = at;
+ if (basic->format_size != cpuc->pebs_record_size)
+ continue;
- for_each_set_bit(bit, (unsigned long *)&pebs_status, X86_PMC_IDX_MAX)
- counts[bit]++;
+ pebs_status = basic->applicable_counters & cpuc->pebs_enabled & mask;
+ for_each_set_bit(bit, (unsigned long *)&pebs_status, X86_PMC_IDX_MAX) {
+ event = cpuc->events[bit];
+
+ if (WARN_ON_ONCE(!event) ||
+ WARN_ON_ONCE(!event->attr.precise_ip))
+ continue;
+
+ if (counts[bit]++) {
+ __intel_pmu_pebs_event(event, iregs, regs, data, last[bit],
+ setup_pebs_adaptive_sample_data);
+ }
+ last[bit] = at;
+ }
}
for_each_set_bit(bit, (unsigned long *)&mask, X86_PMC_IDX_MAX) {
- if (counts[bit] == 0)
+ if (!counts[bit])
continue;
event = cpuc->events[bit];
- if (WARN_ON_ONCE(!event))
- continue;
-
- if (WARN_ON_ONCE(!event->attr.precise_ip))
- continue;
- __intel_pmu_pebs_event(event, iregs, data, base,
- top, bit, counts[bit],
- setup_pebs_adaptive_sample_data);
+ __intel_pmu_pebs_last_event(event, iregs, regs, data, last[bit],
+ counts[bit], setup_pebs_adaptive_sample_data);
}
}
diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index e7aba7349231..60b3078b7502 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -745,7 +745,7 @@ static int uncore_pmu_event_init(struct perf_event *event)
pmu = uncore_event_to_pmu(event);
/* no device found for this pmu */
- if (pmu->func_id < 0)
+ if (!pmu->registered)
return -ENOENT;
/* Sampling not supported yet */
@@ -992,7 +992,7 @@ static void uncore_types_exit(struct intel_uncore_type **types)
uncore_type_exit(*types);
}
-static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
+static int __init uncore_type_init(struct intel_uncore_type *type)
{
struct intel_uncore_pmu *pmus;
size_t size;
@@ -1005,7 +1005,6 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
size = uncore_max_dies() * sizeof(struct intel_uncore_box *);
for (i = 0; i < type->num_boxes; i++) {
- pmus[i].func_id = setid ? i : -1;
pmus[i].pmu_idx = i;
pmus[i].type = type;
pmus[i].boxes = kzalloc(size, GFP_KERNEL);
@@ -1055,12 +1054,12 @@ err:
}
static int __init
-uncore_types_init(struct intel_uncore_type **types, bool setid)
+uncore_types_init(struct intel_uncore_type **types)
{
int ret;
for (; *types; types++) {
- ret = uncore_type_init(*types, setid);
+ ret = uncore_type_init(*types);
if (ret)
return ret;
}
@@ -1160,11 +1159,6 @@ static int uncore_pci_pmu_register(struct pci_dev *pdev,
if (!box)
return -ENOMEM;
- if (pmu->func_id < 0)
- pmu->func_id = pdev->devfn;
- else
- WARN_ON_ONCE(pmu->func_id != pdev->devfn);
-
atomic_inc(&box->refcnt);
box->dieid = die;
box->pci_dev = pdev;
@@ -1410,7 +1404,7 @@ static int __init uncore_pci_init(void)
goto err;
}
- ret = uncore_types_init(uncore_pci_uncores, false);
+ ret = uncore_types_init(uncore_pci_uncores);
if (ret)
goto errtype;
@@ -1678,7 +1672,7 @@ static int __init uncore_cpu_init(void)
{
int ret;
- ret = uncore_types_init(uncore_msr_uncores, true);
+ ret = uncore_types_init(uncore_msr_uncores);
if (ret)
goto err;
@@ -1697,7 +1691,7 @@ static int __init uncore_mmio_init(void)
struct intel_uncore_type **types = uncore_mmio_uncores;
int ret;
- ret = uncore_types_init(types, true);
+ ret = uncore_types_init(types);
if (ret)
goto err;
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index 79ff32e13dcc..3dcb88c0ecfa 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -125,7 +125,6 @@ struct intel_uncore_pmu {
struct pmu pmu;
char name[UNCORE_PMU_NAME_LEN];
int pmu_idx;
- int func_id;
bool registered;
atomic_t activeboxes;
cpumask_t cpu_mask;
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index 3934e1e4e3b1..edb7fd50efe0 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -910,7 +910,7 @@ static int snb_uncore_imc_event_init(struct perf_event *event)
pmu = uncore_event_to_pmu(event);
/* no device found for this pmu */
- if (pmu->func_id < 0)
+ if (!pmu->registered)
return -ENOENT;
/* Sampling not supported yet */
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index ca98744343b8..60973c209c0e 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -6684,17 +6684,8 @@ void spr_uncore_mmio_init(void)
/* GNR uncore support */
#define UNCORE_GNR_NUM_UNCORE_TYPES 23
-#define UNCORE_GNR_TYPE_15 15
-#define UNCORE_GNR_B2UPI 18
-#define UNCORE_GNR_TYPE_21 21
-#define UNCORE_GNR_TYPE_22 22
int gnr_uncore_units_ignore[] = {
- UNCORE_SPR_UPI,
- UNCORE_GNR_TYPE_15,
- UNCORE_GNR_B2UPI,
- UNCORE_GNR_TYPE_21,
- UNCORE_GNR_TYPE_22,
UNCORE_IGNORE_END
};
@@ -6703,6 +6694,31 @@ static struct intel_uncore_type gnr_uncore_ubox = {
.attr_update = uncore_alias_groups,
};
+static struct intel_uncore_type gnr_uncore_pciex8 = {
+ SPR_UNCORE_PCI_COMMON_FORMAT(),
+ .name = "pciex8",
+};
+
+static struct intel_uncore_type gnr_uncore_pciex16 = {
+ SPR_UNCORE_PCI_COMMON_FORMAT(),
+ .name = "pciex16",
+};
+
+static struct intel_uncore_type gnr_uncore_upi = {
+ SPR_UNCORE_PCI_COMMON_FORMAT(),
+ .name = "upi",
+};
+
+static struct intel_uncore_type gnr_uncore_b2upi = {
+ SPR_UNCORE_PCI_COMMON_FORMAT(),
+ .name = "b2upi",
+};
+
+static struct intel_uncore_type gnr_uncore_b2hot = {
+ .name = "b2hot",
+ .attr_update = uncore_alias_groups,
+};
+
static struct intel_uncore_type gnr_uncore_b2cmi = {
SPR_UNCORE_PCI_COMMON_FORMAT(),
.name = "b2cmi",
@@ -6727,21 +6743,21 @@ static struct intel_uncore_type *gnr_uncores[UNCORE_GNR_NUM_UNCORE_TYPES] = {
&gnr_uncore_ubox,
&spr_uncore_imc,
NULL,
+ &gnr_uncore_upi,
NULL,
NULL,
NULL,
+ &spr_uncore_cxlcm,
+ &spr_uncore_cxldp,
NULL,
- NULL,
- NULL,
- NULL,
- NULL,
+ &gnr_uncore_b2hot,
&gnr_uncore_b2cmi,
&gnr_uncore_b2cxl,
- NULL,
+ &gnr_uncore_b2upi,
NULL,
&gnr_uncore_mdf_sbo,
- NULL,
- NULL,
+ &gnr_uncore_pciex16,
+ &gnr_uncore_pciex8,
};
static struct freerunning_counters gnr_iio_freerunning[] = {
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 82c6f45ce975..31c2771545a6 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -624,6 +624,7 @@ union perf_capabilities {
u64 pebs_output_pt_available:1;
u64 pebs_timing_info:1;
u64 anythread_deprecated:1;
+ u64 rdpmc_metrics_clear:1;
};
u64 capabilities;
};
diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
index a8defc813c36..d3bb3865c1b1 100644
--- a/arch/x86/events/rapl.c
+++ b/arch/x86/events/rapl.c
@@ -39,6 +39,10 @@
* event: rapl_energy_psys
* perf code: 0x5
*
+ * core counter: consumption of a single physical core
+ * event: rapl_energy_core (power_core PMU)
+ * perf code: 0x1
+ *
* We manage those counters as free running (read-only). They may be
* use simultaneously by other tools, such as turbostat.
*
@@ -70,18 +74,22 @@ MODULE_LICENSE("GPL");
/*
* RAPL energy status counters
*/
-enum perf_rapl_events {
+enum perf_rapl_pkg_events {
PERF_RAPL_PP0 = 0, /* all cores */
PERF_RAPL_PKG, /* entire package */
PERF_RAPL_RAM, /* DRAM */
PERF_RAPL_PP1, /* gpu */
PERF_RAPL_PSYS, /* psys */
- PERF_RAPL_MAX,
- NR_RAPL_DOMAINS = PERF_RAPL_MAX,
+ PERF_RAPL_PKG_EVENTS_MAX,
+ NR_RAPL_PKG_DOMAINS = PERF_RAPL_PKG_EVENTS_MAX,
};
-static const char *const rapl_domain_names[NR_RAPL_DOMAINS] __initconst = {
+#define PERF_RAPL_CORE 0 /* single core */
+#define PERF_RAPL_CORE_EVENTS_MAX 1
+#define NR_RAPL_CORE_DOMAINS PERF_RAPL_CORE_EVENTS_MAX
+
+static const char *const rapl_pkg_domain_names[NR_RAPL_PKG_DOMAINS] __initconst = {
"pp0-core",
"package",
"dram",
@@ -89,6 +97,8 @@ static const char *const rapl_domain_names[NR_RAPL_DOMAINS] __initconst = {
"psys",
};
+static const char *const rapl_core_domain_name __initconst = "core";
+
/*
* event code: LSB 8 bits, passed in attr->config
* any other bit is reserved
@@ -112,7 +122,7 @@ static struct perf_pmu_events_attr event_attr_##v = { \
* considered as either pkg-scope or die-scope, and we are considering
* them as die-scope.
*/
-#define rapl_pmu_is_pkg_scope() \
+#define rapl_pkg_pmu_is_pkg_scope() \
(boot_cpu_data.x86_vendor == X86_VENDOR_AMD || \
boot_cpu_data.x86_vendor == X86_VENDOR_HYGON)
@@ -129,7 +139,8 @@ struct rapl_pmu {
struct rapl_pmus {
struct pmu pmu;
unsigned int nr_rapl_pmu;
- struct rapl_pmu *pmus[] __counted_by(nr_rapl_pmu);
+ unsigned int cntr_mask;
+ struct rapl_pmu *rapl_pmu[] __counted_by(nr_rapl_pmu);
};
enum rapl_unit_quirk {
@@ -139,44 +150,43 @@ enum rapl_unit_quirk {
};
struct rapl_model {
- struct perf_msr *rapl_msrs;
- unsigned long events;
+ struct perf_msr *rapl_pkg_msrs;
+ struct perf_msr *rapl_core_msrs;
+ unsigned long pkg_events;
+ unsigned long core_events;
unsigned int msr_power_unit;
enum rapl_unit_quirk unit_quirk;
};
/* 1/2^hw_unit Joule */
-static int rapl_hw_unit[NR_RAPL_DOMAINS] __read_mostly;
-static struct rapl_pmus *rapl_pmus;
-static unsigned int rapl_cntr_mask;
+static int rapl_pkg_hw_unit[NR_RAPL_PKG_DOMAINS] __read_mostly;
+static int rapl_core_hw_unit __read_mostly;
+static struct rapl_pmus *rapl_pmus_pkg;
+static struct rapl_pmus *rapl_pmus_core;
static u64 rapl_timer_ms;
-static struct perf_msr *rapl_msrs;
+static struct rapl_model *rapl_model;
/*
- * Helper functions to get the correct topology macros according to the
+ * Helper function to get the correct topology id according to the
* RAPL PMU scope.
*/
-static inline unsigned int get_rapl_pmu_idx(int cpu)
-{
- return rapl_pmu_is_pkg_scope() ? topology_logical_package_id(cpu) :
- topology_logical_die_id(cpu);
-}
-
-static inline const struct cpumask *get_rapl_pmu_cpumask(int cpu)
-{
- return rapl_pmu_is_pkg_scope() ? topology_core_cpumask(cpu) :
- topology_die_cpumask(cpu);
-}
-
-static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu)
+static inline unsigned int get_rapl_pmu_idx(int cpu, int scope)
{
- unsigned int rapl_pmu_idx = get_rapl_pmu_idx(cpu);
-
/*
- * The unsigned check also catches the '-1' return value for non
- * existent mappings in the topology map.
+ * Returns unsigned int, which converts the '-1' return value
+ * (for non-existent mappings in topology map) to UINT_MAX, so
+ * the error check in the caller is simplified.
*/
- return rapl_pmu_idx < rapl_pmus->nr_rapl_pmu ? rapl_pmus->pmus[rapl_pmu_idx] : NULL;
+ switch (scope) {
+ case PERF_PMU_SCOPE_PKG:
+ return topology_logical_package_id(cpu);
+ case PERF_PMU_SCOPE_DIE:
+ return topology_logical_die_id(cpu);
+ case PERF_PMU_SCOPE_CORE:
+ return topology_logical_core_id(cpu);
+ default:
+ return -EINVAL;
+ }
}
static inline u64 rapl_read_counter(struct perf_event *event)
@@ -186,19 +196,20 @@ static inline u64 rapl_read_counter(struct perf_event *event)
return raw;
}
-static inline u64 rapl_scale(u64 v, int cfg)
+static inline u64 rapl_scale(u64 v, struct perf_event *event)
{
- if (cfg > NR_RAPL_DOMAINS) {
- pr_warn("Invalid domain %d, failed to scale data\n", cfg);
- return v;
- }
+ int hw_unit = rapl_pkg_hw_unit[event->hw.config - 1];
+
+ if (event->pmu->scope == PERF_PMU_SCOPE_CORE)
+ hw_unit = rapl_core_hw_unit;
+
/*
* scale delta to smallest unit (1/2^32)
* users must then scale back: count * 1/(1e9*2^32) to get Joules
* or use ldexp(count, -32).
* Watts = Joules/Time delta
*/
- return v << (32 - rapl_hw_unit[cfg - 1]);
+ return v << (32 - hw_unit);
}
static u64 rapl_event_update(struct perf_event *event)
@@ -225,7 +236,7 @@ static u64 rapl_event_update(struct perf_event *event)
delta = (new_raw_count << shift) - (prev_raw_count << shift);
delta >>= shift;
- sdelta = rapl_scale(delta, event->hw.config);
+ sdelta = rapl_scale(delta, event);
local64_add(sdelta, &event->count);
@@ -240,34 +251,34 @@ static void rapl_start_hrtimer(struct rapl_pmu *pmu)
static enum hrtimer_restart rapl_hrtimer_handle(struct hrtimer *hrtimer)
{
- struct rapl_pmu *pmu = container_of(hrtimer, struct rapl_pmu, hrtimer);
+ struct rapl_pmu *rapl_pmu = container_of(hrtimer, struct rapl_pmu, hrtimer);
struct perf_event *event;
unsigned long flags;
- if (!pmu->n_active)
+ if (!rapl_pmu->n_active)
return HRTIMER_NORESTART;
- raw_spin_lock_irqsave(&pmu->lock, flags);
+ raw_spin_lock_irqsave(&rapl_pmu->lock, flags);
- list_for_each_entry(event, &pmu->active_list, active_entry)
+ list_for_each_entry(event, &rapl_pmu->active_list, active_entry)
rapl_event_update(event);
- raw_spin_unlock_irqrestore(&pmu->lock, flags);
+ raw_spin_unlock_irqrestore(&rapl_pmu->lock, flags);
- hrtimer_forward_now(hrtimer, pmu->timer_interval);
+ hrtimer_forward_now(hrtimer, rapl_pmu->timer_interval);
return HRTIMER_RESTART;
}
-static void rapl_hrtimer_init(struct rapl_pmu *pmu)
+static void rapl_hrtimer_init(struct rapl_pmu *rapl_pmu)
{
- struct hrtimer *hr = &pmu->hrtimer;
+ struct hrtimer *hr = &rapl_pmu->hrtimer;
hrtimer_init(hr, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
hr->function = rapl_hrtimer_handle;
}
-static void __rapl_pmu_event_start(struct rapl_pmu *pmu,
+static void __rapl_pmu_event_start(struct rapl_pmu *rapl_pmu,
struct perf_event *event)
{
if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
@@ -275,39 +286,39 @@ static void __rapl_pmu_event_start(struct rapl_pmu *pmu,
event->hw.state = 0;
- list_add_tail(&event->active_entry, &pmu->active_list);
+ list_add_tail(&event->active_entry, &rapl_pmu->active_list);
local64_set(&event->hw.prev_count, rapl_read_counter(event));
- pmu->n_active++;
- if (pmu->n_active == 1)
- rapl_start_hrtimer(pmu);
+ rapl_pmu->n_active++;
+ if (rapl_pmu->n_active == 1)
+ rapl_start_hrtimer(rapl_pmu);
}
static void rapl_pmu_event_start(struct perf_event *event, int mode)
{
- struct rapl_pmu *pmu = event->pmu_private;
+ struct rapl_pmu *rapl_pmu = event->pmu_private;
unsigned long flags;
- raw_spin_lock_irqsave(&pmu->lock, flags);
- __rapl_pmu_event_start(pmu, event);
- raw_spin_unlock_irqrestore(&pmu->lock, flags);
+ raw_spin_lock_irqsave(&rapl_pmu->lock, flags);
+ __rapl_pmu_event_start(rapl_pmu, event);
+ raw_spin_unlock_irqrestore(&rapl_pmu->lock, flags);
}
static void rapl_pmu_event_stop(struct perf_event *event, int mode)
{
- struct rapl_pmu *pmu = event->pmu_private;
+ struct rapl_pmu *rapl_pmu = event->pmu_private;
struct hw_perf_event *hwc = &event->hw;
unsigned long flags;
- raw_spin_lock_irqsave(&pmu->lock, flags);
+ raw_spin_lock_irqsave(&rapl_pmu->lock, flags);
/* mark event as deactivated and stopped */
if (!(hwc->state & PERF_HES_STOPPED)) {
- WARN_ON_ONCE(pmu->n_active <= 0);
- pmu->n_active--;
- if (pmu->n_active == 0)
- hrtimer_cancel(&pmu->hrtimer);
+ WARN_ON_ONCE(rapl_pmu->n_active <= 0);
+ rapl_pmu->n_active--;
+ if (rapl_pmu->n_active == 0)
+ hrtimer_cancel(&rapl_pmu->hrtimer);
list_del(&event->active_entry);
@@ -325,23 +336,23 @@ static void rapl_pmu_event_stop(struct perf_event *event, int mode)
hwc->state |= PERF_HES_UPTODATE;
}
- raw_spin_unlock_irqrestore(&pmu->lock, flags);
+ raw_spin_unlock_irqrestore(&rapl_pmu->lock, flags);
}
static int rapl_pmu_event_add(struct perf_event *event, int mode)
{
- struct rapl_pmu *pmu = event->pmu_private;
+ struct rapl_pmu *rapl_pmu = event->pmu_private;
struct hw_perf_event *hwc = &event->hw;
unsigned long flags;
- raw_spin_lock_irqsave(&pmu->lock, flags);
+ raw_spin_lock_irqsave(&rapl_pmu->lock, flags);
hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
if (mode & PERF_EF_START)
- __rapl_pmu_event_start(pmu, event);
+ __rapl_pmu_event_start(rapl_pmu, event);
- raw_spin_unlock_irqrestore(&pmu->lock, flags);
+ raw_spin_unlock_irqrestore(&rapl_pmu->lock, flags);
return 0;
}
@@ -354,12 +365,14 @@ static void rapl_pmu_event_del(struct perf_event *event, int flags)
static int rapl_pmu_event_init(struct perf_event *event)
{
u64 cfg = event->attr.config & RAPL_EVENT_MASK;
- int bit, ret = 0;
- struct rapl_pmu *pmu;
+ int bit, rapl_pmus_scope, ret = 0;
+ struct rapl_pmu *rapl_pmu;
+ unsigned int rapl_pmu_idx;
+ struct rapl_pmus *rapl_pmus;
- /* only look at RAPL events */
- if (event->attr.type != rapl_pmus->pmu.type)
- return -ENOENT;
+ /* unsupported modes and filters */
+ if (event->attr.sample_period) /* no sampling */
+ return -EINVAL;
/* check only supported bits are set */
if (event->attr.config & ~RAPL_EVENT_MASK)
@@ -368,26 +381,49 @@ static int rapl_pmu_event_init(struct perf_event *event)
if (event->cpu < 0)
return -EINVAL;
- if (!cfg || cfg >= NR_RAPL_DOMAINS + 1)
+ rapl_pmus = container_of(event->pmu, struct rapl_pmus, pmu);
+ if (!rapl_pmus)
+ return -EINVAL;
+ rapl_pmus_scope = rapl_pmus->pmu.scope;
+
+ if (rapl_pmus_scope == PERF_PMU_SCOPE_PKG || rapl_pmus_scope == PERF_PMU_SCOPE_DIE) {
+ /* only look at RAPL package events */
+ if (event->attr.type != rapl_pmus_pkg->pmu.type)
+ return -ENOENT;
+
+ cfg = array_index_nospec((long)cfg, NR_RAPL_PKG_DOMAINS + 1);
+ if (!cfg || cfg >= NR_RAPL_PKG_DOMAINS + 1)
+ return -EINVAL;
+
+ bit = cfg - 1;
+ event->hw.event_base = rapl_model->rapl_pkg_msrs[bit].msr;
+ } else if (rapl_pmus_scope == PERF_PMU_SCOPE_CORE) {
+ /* only look at RAPL core events */
+ if (event->attr.type != rapl_pmus_core->pmu.type)
+ return -ENOENT;
+
+ cfg = array_index_nospec((long)cfg, NR_RAPL_CORE_DOMAINS + 1);
+ if (!cfg || cfg >= NR_RAPL_PKG_DOMAINS + 1)
+ return -EINVAL;
+
+ bit = cfg - 1;
+ event->hw.event_base = rapl_model->rapl_core_msrs[bit].msr;
+ } else
return -EINVAL;
-
- cfg = array_index_nospec((long)cfg, NR_RAPL_DOMAINS + 1);
- bit = cfg - 1;
/* check event supported */
- if (!(rapl_cntr_mask & (1 << bit)))
+ if (!(rapl_pmus->cntr_mask & (1 << bit)))
return -EINVAL;
- /* unsupported modes and filters */
- if (event->attr.sample_period) /* no sampling */
+ rapl_pmu_idx = get_rapl_pmu_idx(event->cpu, rapl_pmus_scope);
+ if (rapl_pmu_idx >= rapl_pmus->nr_rapl_pmu)
return -EINVAL;
-
/* must be done before validate_group */
- pmu = cpu_to_rapl_pmu(event->cpu);
- if (!pmu)
+ rapl_pmu = rapl_pmus->rapl_pmu[rapl_pmu_idx];
+ if (!rapl_pmu)
return -EINVAL;
- event->pmu_private = pmu;
- event->hw.event_base = rapl_msrs[bit].msr;
+
+ event->pmu_private = rapl_pmu;
event->hw.config = cfg;
event->hw.idx = bit;
@@ -404,12 +440,14 @@ RAPL_EVENT_ATTR_STR(energy-pkg , rapl_pkg, "event=0x02");
RAPL_EVENT_ATTR_STR(energy-ram , rapl_ram, "event=0x03");
RAPL_EVENT_ATTR_STR(energy-gpu , rapl_gpu, "event=0x04");
RAPL_EVENT_ATTR_STR(energy-psys, rapl_psys, "event=0x05");
+RAPL_EVENT_ATTR_STR(energy-core, rapl_core, "event=0x01");
RAPL_EVENT_ATTR_STR(energy-cores.unit, rapl_cores_unit, "Joules");
RAPL_EVENT_ATTR_STR(energy-pkg.unit , rapl_pkg_unit, "Joules");
RAPL_EVENT_ATTR_STR(energy-ram.unit , rapl_ram_unit, "Joules");
RAPL_EVENT_ATTR_STR(energy-gpu.unit , rapl_gpu_unit, "Joules");
RAPL_EVENT_ATTR_STR(energy-psys.unit, rapl_psys_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-core.unit, rapl_core_unit, "Joules");
/*
* we compute in 0.23 nJ increments regardless of MSR
@@ -419,6 +457,7 @@ RAPL_EVENT_ATTR_STR(energy-pkg.scale, rapl_pkg_scale, "2.3283064365386962890
RAPL_EVENT_ATTR_STR(energy-ram.scale, rapl_ram_scale, "2.3283064365386962890625e-10");
RAPL_EVENT_ATTR_STR(energy-gpu.scale, rapl_gpu_scale, "2.3283064365386962890625e-10");
RAPL_EVENT_ATTR_STR(energy-psys.scale, rapl_psys_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-core.scale, rapl_core_scale, "2.3283064365386962890625e-10");
/*
* There are no default events, but we need to create
@@ -451,6 +490,12 @@ static const struct attribute_group *rapl_attr_groups[] = {
NULL,
};
+static const struct attribute_group *rapl_core_attr_groups[] = {
+ &rapl_pmu_format_group,
+ &rapl_pmu_events_group,
+ NULL,
+};
+
static struct attribute *rapl_events_cores[] = {
EVENT_PTR(rapl_cores),
EVENT_PTR(rapl_cores_unit),
@@ -511,6 +556,18 @@ static struct attribute_group rapl_events_psys_group = {
.attrs = rapl_events_psys,
};
+static struct attribute *rapl_events_core[] = {
+ EVENT_PTR(rapl_core),
+ EVENT_PTR(rapl_core_unit),
+ EVENT_PTR(rapl_core_scale),
+ NULL,
+};
+
+static struct attribute_group rapl_events_core_group = {
+ .name = "events",
+ .attrs = rapl_events_core,
+};
+
static bool test_msr(int idx, void *data)
{
return test_bit(idx, (unsigned long *) data);
@@ -536,11 +593,11 @@ static struct perf_msr intel_rapl_spr_msrs[] = {
};
/*
- * Force to PERF_RAPL_MAX size due to:
- * - perf_msr_probe(PERF_RAPL_MAX)
+ * Force to PERF_RAPL_PKG_EVENTS_MAX size due to:
+ * - perf_msr_probe(PERF_RAPL_PKG_EVENTS_MAX)
* - want to use same event codes across both architectures
*/
-static struct perf_msr amd_rapl_msrs[] = {
+static struct perf_msr amd_rapl_pkg_msrs[] = {
[PERF_RAPL_PP0] = { 0, &rapl_events_cores_group, NULL, false, 0 },
[PERF_RAPL_PKG] = { MSR_AMD_PKG_ENERGY_STATUS, &rapl_events_pkg_group, test_msr, false, RAPL_MSR_MASK },
[PERF_RAPL_RAM] = { 0, &rapl_events_ram_group, NULL, false, 0 },
@@ -548,18 +605,25 @@ static struct perf_msr amd_rapl_msrs[] = {
[PERF_RAPL_PSYS] = { 0, &rapl_events_psys_group, NULL, false, 0 },
};
-static int rapl_check_hw_unit(struct rapl_model *rm)
+static struct perf_msr amd_rapl_core_msrs[] = {
+ [PERF_RAPL_CORE] = { MSR_AMD_CORE_ENERGY_STATUS, &rapl_events_core_group,
+ test_msr, false, RAPL_MSR_MASK },
+};
+
+static int rapl_check_hw_unit(void)
{
u64 msr_rapl_power_unit_bits;
int i;
/* protect rdmsrl() to handle virtualization */
- if (rdmsrl_safe(rm->msr_power_unit, &msr_rapl_power_unit_bits))
+ if (rdmsrl_safe(rapl_model->msr_power_unit, &msr_rapl_power_unit_bits))
return -1;
- for (i = 0; i < NR_RAPL_DOMAINS; i++)
- rapl_hw_unit[i] = (msr_rapl_power_unit_bits >> 8) & 0x1FULL;
+ for (i = 0; i < NR_RAPL_PKG_DOMAINS; i++)
+ rapl_pkg_hw_unit[i] = (msr_rapl_power_unit_bits >> 8) & 0x1FULL;
- switch (rm->unit_quirk) {
+ rapl_core_hw_unit = (msr_rapl_power_unit_bits >> 8) & 0x1FULL;
+
+ switch (rapl_model->unit_quirk) {
/*
* DRAM domain on HSW server and KNL has fixed energy unit which can be
* different than the unit from power unit MSR. See
@@ -567,17 +631,16 @@ static int rapl_check_hw_unit(struct rapl_model *rm)
* of 2. Datasheet, September 2014, Reference Number: 330784-001 "
*/
case RAPL_UNIT_QUIRK_INTEL_HSW:
- rapl_hw_unit[PERF_RAPL_RAM] = 16;
+ rapl_pkg_hw_unit[PERF_RAPL_RAM] = 16;
break;
/* SPR uses a fixed energy unit for Psys domain. */
case RAPL_UNIT_QUIRK_INTEL_SPR:
- rapl_hw_unit[PERF_RAPL_PSYS] = 0;
+ rapl_pkg_hw_unit[PERF_RAPL_PSYS] = 0;
break;
default:
break;
}
-
/*
* Calculate the timer rate:
* Use reference of 200W for scaling the timeout to avoid counter
@@ -586,9 +649,9 @@ static int rapl_check_hw_unit(struct rapl_model *rm)
* if hw unit is 32, then we use 2 ms 1/200/2
*/
rapl_timer_ms = 2;
- if (rapl_hw_unit[0] < 32) {
+ if (rapl_pkg_hw_unit[0] < 32) {
rapl_timer_ms = (1000 / (2 * 100));
- rapl_timer_ms *= (1ULL << (32 - rapl_hw_unit[0] - 1));
+ rapl_timer_ms *= (1ULL << (32 - rapl_pkg_hw_unit[0] - 1));
}
return 0;
}
@@ -596,24 +659,32 @@ static int rapl_check_hw_unit(struct rapl_model *rm)
static void __init rapl_advertise(void)
{
int i;
+ int num_counters = hweight32(rapl_pmus_pkg->cntr_mask);
+
+ if (rapl_pmus_core)
+ num_counters += hweight32(rapl_pmus_core->cntr_mask);
pr_info("API unit is 2^-32 Joules, %d fixed counters, %llu ms ovfl timer\n",
- hweight32(rapl_cntr_mask), rapl_timer_ms);
+ num_counters, rapl_timer_ms);
- for (i = 0; i < NR_RAPL_DOMAINS; i++) {
- if (rapl_cntr_mask & (1 << i)) {
+ for (i = 0; i < NR_RAPL_PKG_DOMAINS; i++) {
+ if (rapl_pmus_pkg->cntr_mask & (1 << i)) {
pr_info("hw unit of domain %s 2^-%d Joules\n",
- rapl_domain_names[i], rapl_hw_unit[i]);
+ rapl_pkg_domain_names[i], rapl_pkg_hw_unit[i]);
}
}
+
+ if (rapl_pmus_core && (rapl_pmus_core->cntr_mask & (1 << PERF_RAPL_CORE)))
+ pr_info("hw unit of domain %s 2^-%d Joules\n",
+ rapl_core_domain_name, rapl_core_hw_unit);
}
-static void cleanup_rapl_pmus(void)
+static void cleanup_rapl_pmus(struct rapl_pmus *rapl_pmus)
{
int i;
for (i = 0; i < rapl_pmus->nr_rapl_pmu; i++)
- kfree(rapl_pmus->pmus[i]);
+ kfree(rapl_pmus->rapl_pmu[i]);
kfree(rapl_pmus);
}
@@ -626,46 +697,60 @@ static const struct attribute_group *rapl_attr_update[] = {
NULL,
};
-static int __init init_rapl_pmu(void)
+static const struct attribute_group *rapl_core_attr_update[] = {
+ &rapl_events_core_group,
+ NULL,
+};
+
+static int __init init_rapl_pmu(struct rapl_pmus *rapl_pmus)
{
- struct rapl_pmu *pmu;
+ struct rapl_pmu *rapl_pmu;
int idx;
for (idx = 0; idx < rapl_pmus->nr_rapl_pmu; idx++) {
- pmu = kzalloc(sizeof(*pmu), GFP_KERNEL);
- if (!pmu)
+ rapl_pmu = kzalloc(sizeof(*rapl_pmu), GFP_KERNEL);
+ if (!rapl_pmu)
goto free;
- raw_spin_lock_init(&pmu->lock);
- INIT_LIST_HEAD(&pmu->active_list);
- pmu->pmu = &rapl_pmus->pmu;
- pmu->timer_interval = ms_to_ktime(rapl_timer_ms);
- rapl_hrtimer_init(pmu);
+ raw_spin_lock_init(&rapl_pmu->lock);
+ INIT_LIST_HEAD(&rapl_pmu->active_list);
+ rapl_pmu->pmu = &rapl_pmus->pmu;
+ rapl_pmu->timer_interval = ms_to_ktime(rapl_timer_ms);
+ rapl_hrtimer_init(rapl_pmu);
- rapl_pmus->pmus[idx] = pmu;
+ rapl_pmus->rapl_pmu[idx] = rapl_pmu;
}
return 0;
free:
for (; idx > 0; idx--)
- kfree(rapl_pmus->pmus[idx - 1]);
+ kfree(rapl_pmus->rapl_pmu[idx - 1]);
return -ENOMEM;
}
-static int __init init_rapl_pmus(void)
+static int __init init_rapl_pmus(struct rapl_pmus **rapl_pmus_ptr, int rapl_pmu_scope,
+ const struct attribute_group **rapl_attr_groups,
+ const struct attribute_group **rapl_attr_update)
{
int nr_rapl_pmu = topology_max_packages();
- int rapl_pmu_scope = PERF_PMU_SCOPE_PKG;
+ struct rapl_pmus *rapl_pmus;
- if (!rapl_pmu_is_pkg_scope()) {
- nr_rapl_pmu *= topology_max_dies_per_package();
- rapl_pmu_scope = PERF_PMU_SCOPE_DIE;
- }
+ /*
+ * rapl_pmu_scope must be either PKG, DIE or CORE
+ */
+ if (rapl_pmu_scope == PERF_PMU_SCOPE_DIE)
+ nr_rapl_pmu *= topology_max_dies_per_package();
+ else if (rapl_pmu_scope == PERF_PMU_SCOPE_CORE)
+ nr_rapl_pmu *= topology_num_cores_per_package();
+ else if (rapl_pmu_scope != PERF_PMU_SCOPE_PKG)
+ return -EINVAL;
- rapl_pmus = kzalloc(struct_size(rapl_pmus, pmus, nr_rapl_pmu), GFP_KERNEL);
+ rapl_pmus = kzalloc(struct_size(rapl_pmus, rapl_pmu, nr_rapl_pmu), GFP_KERNEL);
if (!rapl_pmus)
return -ENOMEM;
+ *rapl_pmus_ptr = rapl_pmus;
+
rapl_pmus->nr_rapl_pmu = nr_rapl_pmu;
rapl_pmus->pmu.attr_groups = rapl_attr_groups;
rapl_pmus->pmu.attr_update = rapl_attr_update;
@@ -680,75 +765,77 @@ static int __init init_rapl_pmus(void)
rapl_pmus->pmu.module = THIS_MODULE;
rapl_pmus->pmu.capabilities = PERF_PMU_CAP_NO_EXCLUDE;
- return init_rapl_pmu();
+ return init_rapl_pmu(rapl_pmus);
}
static struct rapl_model model_snb = {
- .events = BIT(PERF_RAPL_PP0) |
+ .pkg_events = BIT(PERF_RAPL_PP0) |
BIT(PERF_RAPL_PKG) |
BIT(PERF_RAPL_PP1),
.msr_power_unit = MSR_RAPL_POWER_UNIT,
- .rapl_msrs = intel_rapl_msrs,
+ .rapl_pkg_msrs = intel_rapl_msrs,
};
static struct rapl_model model_snbep = {
- .events = BIT(PERF_RAPL_PP0) |
+ .pkg_events = BIT(PERF_RAPL_PP0) |
BIT(PERF_RAPL_PKG) |
BIT(PERF_RAPL_RAM),
.msr_power_unit = MSR_RAPL_POWER_UNIT,
- .rapl_msrs = intel_rapl_msrs,
+ .rapl_pkg_msrs = intel_rapl_msrs,
};
static struct rapl_model model_hsw = {
- .events = BIT(PERF_RAPL_PP0) |
+ .pkg_events = BIT(PERF_RAPL_PP0) |
BIT(PERF_RAPL_PKG) |
BIT(PERF_RAPL_RAM) |
BIT(PERF_RAPL_PP1),
.msr_power_unit = MSR_RAPL_POWER_UNIT,
- .rapl_msrs = intel_rapl_msrs,
+ .rapl_pkg_msrs = intel_rapl_msrs,
};
static struct rapl_model model_hsx = {
- .events = BIT(PERF_RAPL_PP0) |
+ .pkg_events = BIT(PERF_RAPL_PP0) |
BIT(PERF_RAPL_PKG) |
BIT(PERF_RAPL_RAM),
.unit_quirk = RAPL_UNIT_QUIRK_INTEL_HSW,
.msr_power_unit = MSR_RAPL_POWER_UNIT,
- .rapl_msrs = intel_rapl_msrs,
+ .rapl_pkg_msrs = intel_rapl_msrs,
};
static struct rapl_model model_knl = {
- .events = BIT(PERF_RAPL_PKG) |
+ .pkg_events = BIT(PERF_RAPL_PKG) |
BIT(PERF_RAPL_RAM),
.unit_quirk = RAPL_UNIT_QUIRK_INTEL_HSW,
.msr_power_unit = MSR_RAPL_POWER_UNIT,
- .rapl_msrs = intel_rapl_msrs,
+ .rapl_pkg_msrs = intel_rapl_msrs,
};
static struct rapl_model model_skl = {
- .events = BIT(PERF_RAPL_PP0) |
+ .pkg_events = BIT(PERF_RAPL_PP0) |
BIT(PERF_RAPL_PKG) |
BIT(PERF_RAPL_RAM) |
BIT(PERF_RAPL_PP1) |
BIT(PERF_RAPL_PSYS),
.msr_power_unit = MSR_RAPL_POWER_UNIT,
- .rapl_msrs = intel_rapl_msrs,
+ .rapl_pkg_msrs = intel_rapl_msrs,
};
static struct rapl_model model_spr = {
- .events = BIT(PERF_RAPL_PP0) |
+ .pkg_events = BIT(PERF_RAPL_PP0) |
BIT(PERF_RAPL_PKG) |
BIT(PERF_RAPL_RAM) |
BIT(PERF_RAPL_PSYS),
.unit_quirk = RAPL_UNIT_QUIRK_INTEL_SPR,
.msr_power_unit = MSR_RAPL_POWER_UNIT,
- .rapl_msrs = intel_rapl_spr_msrs,
+ .rapl_pkg_msrs = intel_rapl_spr_msrs,
};
static struct rapl_model model_amd_hygon = {
- .events = BIT(PERF_RAPL_PKG),
+ .pkg_events = BIT(PERF_RAPL_PKG),
+ .core_events = BIT(PERF_RAPL_CORE),
.msr_power_unit = MSR_AMD_RAPL_POWER_UNIT,
- .rapl_msrs = amd_rapl_msrs,
+ .rapl_pkg_msrs = amd_rapl_pkg_msrs,
+ .rapl_core_msrs = amd_rapl_core_msrs,
};
static const struct x86_cpu_id rapl_model_match[] __initconst = {
@@ -804,45 +891,73 @@ MODULE_DEVICE_TABLE(x86cpu, rapl_model_match);
static int __init rapl_pmu_init(void)
{
const struct x86_cpu_id *id;
- struct rapl_model *rm;
+ int rapl_pkg_pmu_scope = PERF_PMU_SCOPE_DIE;
int ret;
+ if (rapl_pkg_pmu_is_pkg_scope())
+ rapl_pkg_pmu_scope = PERF_PMU_SCOPE_PKG;
+
id = x86_match_cpu(rapl_model_match);
if (!id)
return -ENODEV;
- rm = (struct rapl_model *) id->driver_data;
-
- rapl_msrs = rm->rapl_msrs;
+ rapl_model = (struct rapl_model *) id->driver_data;
- rapl_cntr_mask = perf_msr_probe(rapl_msrs, PERF_RAPL_MAX,
- false, (void *) &rm->events);
-
- ret = rapl_check_hw_unit(rm);
+ ret = rapl_check_hw_unit();
if (ret)
return ret;
- ret = init_rapl_pmus();
+ ret = init_rapl_pmus(&rapl_pmus_pkg, rapl_pkg_pmu_scope, rapl_attr_groups,
+ rapl_attr_update);
if (ret)
return ret;
- ret = perf_pmu_register(&rapl_pmus->pmu, "power", -1);
+ rapl_pmus_pkg->cntr_mask = perf_msr_probe(rapl_model->rapl_pkg_msrs,
+ PERF_RAPL_PKG_EVENTS_MAX, false,
+ (void *) &rapl_model->pkg_events);
+
+ ret = perf_pmu_register(&rapl_pmus_pkg->pmu, "power", -1);
if (ret)
goto out;
+ if (rapl_model->core_events) {
+ ret = init_rapl_pmus(&rapl_pmus_core, PERF_PMU_SCOPE_CORE,
+ rapl_core_attr_groups,
+ rapl_core_attr_update);
+ if (ret) {
+ pr_warn("power-core PMU initialization failed (%d)\n", ret);
+ goto core_init_failed;
+ }
+
+ rapl_pmus_core->cntr_mask = perf_msr_probe(rapl_model->rapl_core_msrs,
+ PERF_RAPL_CORE_EVENTS_MAX, false,
+ (void *) &rapl_model->core_events);
+
+ ret = perf_pmu_register(&rapl_pmus_core->pmu, "power_core", -1);
+ if (ret) {
+ pr_warn("power-core PMU registration failed (%d)\n", ret);
+ cleanup_rapl_pmus(rapl_pmus_core);
+ }
+ }
+
+core_init_failed:
rapl_advertise();
return 0;
out:
pr_warn("Initialization failed (%d), disabled\n", ret);
- cleanup_rapl_pmus();
+ cleanup_rapl_pmus(rapl_pmus_pkg);
return ret;
}
module_init(rapl_pmu_init);
static void __exit intel_rapl_exit(void)
{
- perf_pmu_unregister(&rapl_pmus->pmu);
- cleanup_rapl_pmus();
+ if (rapl_pmus_core) {
+ perf_pmu_unregister(&rapl_pmus_core->pmu);
+ cleanup_rapl_pmus(rapl_pmus_core);
+ }
+ perf_pmu_unregister(&rapl_pmus_pkg->pmu);
+ cleanup_rapl_pmus(rapl_pmus_pkg);
}
module_exit(intel_rapl_exit);
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index d95f902acc52..1ac79f361645 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -41,6 +41,7 @@
#define INTEL_FIXED_0_USER (1ULL << 1)
#define INTEL_FIXED_0_ANYTHREAD (1ULL << 2)
#define INTEL_FIXED_0_ENABLE_PMI (1ULL << 3)
+#define INTEL_FIXED_3_METRICS_CLEAR (1ULL << 2)
#define HSW_IN_TX (1ULL << 32)
#define HSW_IN_TX_CHECKPOINTED (1ULL << 33)
@@ -372,6 +373,9 @@ static inline bool use_fixed_pseudo_encoding(u64 code)
#define INTEL_TD_METRIC_MAX INTEL_TD_METRIC_MEM_BOUND
#define INTEL_TD_METRIC_NUM 8
+#define INTEL_TD_CFG_METRIC_CLEAR_BIT 0
+#define INTEL_TD_CFG_METRIC_CLEAR BIT_ULL(INTEL_TD_CFG_METRIC_CLEAR_BIT)
+
static inline bool is_metric_idx(int idx)
{
return (unsigned)(idx - INTEL_PMC_IDX_METRIC_BASE) < INTEL_TD_METRIC_NUM;
@@ -422,7 +426,9 @@ static inline bool is_topdown_idx(int idx)
*/
struct pebs_basic {
- u64 format_size;
+ u64 format_group:32,
+ retire_latency:16,
+ format_size:16;
u64 ip;
u64 applicable_counters;
u64 tsc;
@@ -431,7 +437,17 @@ struct pebs_basic {
struct pebs_meminfo {
u64 address;
u64 aux;
- u64 latency;
+ union {
+ /* pre Alder Lake */
+ u64 mem_latency;
+ /* Alder Lake and later */
+ struct {
+ u64 instr_latency:16;
+ u64 pad2:16;
+ u64 cache_latency:16;
+ u64 pad3:16;
+ };
+ };
u64 tsx_tuning;
};
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 20e6009381ed..c0cd10182e90 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -98,6 +98,7 @@ struct cpuinfo_topology {
// Logical ID mappings
u32 logical_pkg_id;
u32 logical_die_id;
+ u32 logical_core_id;
// AMD Node ID and Nodes per Package info
u32 amd_node_id;
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index fd41103ad342..3973cb9bb2e6 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -143,6 +143,7 @@ extern const struct cpumask *cpu_clustergroup_mask(int cpu);
#define topology_logical_package_id(cpu) (cpu_data(cpu).topo.logical_pkg_id)
#define topology_physical_package_id(cpu) (cpu_data(cpu).topo.pkg_id)
#define topology_logical_die_id(cpu) (cpu_data(cpu).topo.logical_die_id)
+#define topology_logical_core_id(cpu) (cpu_data(cpu).topo.logical_core_id)
#define topology_die_id(cpu) (cpu_data(cpu).topo.die_id)
#define topology_core_id(cpu) (cpu_data(cpu).topo.core_id)
#define topology_ppin(cpu) (cpu_data(cpu).ppin)
diff --git a/arch/x86/kernel/cpu/debugfs.c b/arch/x86/kernel/cpu/debugfs.c
index 10719aba6276..cacfd3f6abef 100644
--- a/arch/x86/kernel/cpu/debugfs.c
+++ b/arch/x86/kernel/cpu/debugfs.c
@@ -25,6 +25,7 @@ static int cpu_debug_show(struct seq_file *m, void *p)
seq_printf(m, "cpu_type: %s\n", get_topology_cpu_type_name(c));
seq_printf(m, "logical_pkg_id: %u\n", c->topo.logical_pkg_id);
seq_printf(m, "logical_die_id: %u\n", c->topo.logical_die_id);
+ seq_printf(m, "logical_core_id: %u\n", c->topo.logical_core_id);
seq_printf(m, "llc_id: %u\n", c->topo.llc_id);
seq_printf(m, "l2c_id: %u\n", c->topo.l2c_id);
seq_printf(m, "amd_node_id: %u\n", c->topo.amd_node_id);
diff --git a/arch/x86/kernel/cpu/topology_common.c b/arch/x86/kernel/cpu/topology_common.c
index 8277c64f88db..b5a5e1411469 100644
--- a/arch/x86/kernel/cpu/topology_common.c
+++ b/arch/x86/kernel/cpu/topology_common.c
@@ -185,6 +185,7 @@ static void topo_set_ids(struct topo_scan *tscan, bool early)
if (!early) {
c->topo.logical_pkg_id = topology_get_logical_id(apicid, TOPO_PKG_DOMAIN);
c->topo.logical_die_id = topology_get_logical_id(apicid, TOPO_DIE_DOMAIN);
+ c->topo.logical_core_id = topology_get_logical_id(apicid, TOPO_CORE_DOMAIN);
}
/* Package relative core ID */