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Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse source 
Pull perf fixes from Ingo Molnar:
 "This tree contains various perf fixes on the kernel side, plus three
  hw/event-enablement late additions:

   - Intel Memory Bandwidth Monitoring events and handling
   - the AMD Accumulated Power Mechanism reporting facility
   - more IOMMU events

  ... and a final round of perf tooling updates/fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  perf llvm: Use strerror_r instead of the thread unsafe strerror one
  perf llvm: Use realpath to canonicalize paths
  perf tools: Unexport some methods unused outside strbuf.c
  perf probe: No need to use formatting strbuf method
  perf help: Use asprintf instead of adhoc equivalents
  perf tools: Remove unused perf_pathdup, xstrdup functions
  perf tools: Do not include stringify.h from the kernel sources
  tools include: Copy linux/stringify.h from the kernel
  tools lib traceevent: Remove redundant CPU output
  perf tools: Remove needless 'extern' from function prototypes
  perf tools: Simplify die() mechanism
  perf tools: Remove unused DIE_IF macro
  perf script: Remove lots of unused arguments
  perf thread: Rename perf_event__preprocess_sample_addr to thread__resolve
  perf machine: Rename perf_event__preprocess_sample to machine__resolve
  perf tools: Add cpumode to struct perf_sample
  perf tests: Forward the perf_sample in the dwarf unwind test
  perf tools: Remove misplaced __maybe_unused
  perf list: Fix documentation of :ppp
  perf bench numa: Fix assertion for nodes bitfield
  ...
This commit is contained in:
Linus Torvalds 2016-03-24 10:02:14 -07:00
commit 3fa2fe2ce0
95 changed files with 1330 additions and 628 deletions
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9
arch/x86/Kconfig
View file

@ -1210,6 +1210,15 @@ config MICROCODE_OLD_INTERFACE
def_bool y
depends on MICROCODE
config PERF_EVENTS_AMD_POWER
depends on PERF_EVENTS && CPU_SUP_AMD
tristate "AMD Processor Power Reporting Mechanism"
---help---
Provide power reporting mechanism support for AMD processors.
Currently, it leverages X86_FEATURE_ACC_POWER
(CPUID Fn8000_0007_EDX[12]) interface to calculate the
average power consumption on Family 15h processors.
config X86_MSR
tristate "/dev/cpu/*/msr - Model-specific register support"
---help---

1
arch/x86/events/Makefile
View file

@ -1,6 +1,7 @@
obj-y += core.o
obj-$(CONFIG_CPU_SUP_AMD) += amd/core.o amd/uncore.o
obj-$(CONFIG_PERF_EVENTS_AMD_POWER) += amd/power.o
obj-$(CONFIG_X86_LOCAL_APIC) += amd/ibs.o msr.o
ifdef CONFIG_AMD_IOMMU
obj-$(CONFIG_CPU_SUP_AMD) += amd/iommu.o

37
arch/x86/events/amd/ibs.c
View file

@ -376,7 +376,13 @@ static void perf_ibs_start(struct perf_event *event, int flags)
hwc->state = 0;
perf_ibs_set_period(perf_ibs, hwc, &period);
/*
* Set STARTED before enabling the hardware, such that
* a subsequent NMI must observe it. Then clear STOPPING
* such that we don't consume NMIs by accident.
*/
set_bit(IBS_STARTED, pcpu->state);
clear_bit(IBS_STOPPING, pcpu->state);
perf_ibs_enable_event(perf_ibs, hwc, period >> 4);
perf_event_update_userpage(event);
@ -390,7 +396,7 @@ static void perf_ibs_stop(struct perf_event *event, int flags)
u64 config;
int stopping;
stopping = test_and_clear_bit(IBS_STARTED, pcpu->state);
stopping = test_bit(IBS_STARTED, pcpu->state);
if (!stopping && (hwc->state & PERF_HES_UPTODATE))
return;
@ -398,8 +404,24 @@ static void perf_ibs_stop(struct perf_event *event, int flags)
rdmsrl(hwc->config_base, config);
if (stopping) {
/*
* Set STOPPING before disabling the hardware, such that it
* must be visible to NMIs the moment we clear the EN bit,
* at which point we can generate an !VALID sample which
* we need to consume.
*/
set_bit(IBS_STOPPING, pcpu->state);
perf_ibs_disable_event(perf_ibs, hwc, config);
/*
* Clear STARTED after disabling the hardware; if it were
* cleared before an NMI hitting after the clear but before
* clearing the EN bit might think it a spurious NMI and not
* handle it.
*
* Clearing it after, however, creates the problem of the NMI
* handler seeing STARTED but not having a valid sample.
*/
clear_bit(IBS_STARTED, pcpu->state);
WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
hwc->state |= PERF_HES_STOPPED;
}
@ -527,20 +549,24 @@ static int perf_ibs_handle_irq(struct perf_ibs *perf_ibs, struct pt_regs *iregs)
u64 *buf, *config, period;
if (!test_bit(IBS_STARTED, pcpu->state)) {
fail:
/*
* Catch spurious interrupts after stopping IBS: After
* disabling IBS there could be still incoming NMIs
* with samples that even have the valid bit cleared.
* Mark all this NMIs as handled.
*/
return test_and_clear_bit(IBS_STOPPING, pcpu->state) ? 1 : 0;
if (test_and_clear_bit(IBS_STOPPING, pcpu->state))
return 1;
return 0;
}
msr = hwc->config_base;
buf = ibs_data.regs;
rdmsrl(msr, *buf);
if (!(*buf++ & perf_ibs->valid_mask))
return 0;
goto fail;
config = &ibs_data.regs[0];
perf_ibs_event_update(perf_ibs, event, config);
@ -599,7 +625,7 @@ static int perf_ibs_handle_irq(struct perf_ibs *perf_ibs, struct pt_regs *iregs)
throttle = perf_event_overflow(event, &data, &regs);
out:
if (throttle)
perf_ibs_disable_event(perf_ibs, hwc, *config);
perf_ibs_stop(event, 0);
else
perf_ibs_enable_event(perf_ibs, hwc, period >> 4);
@ -611,6 +637,7 @@ static int perf_ibs_handle_irq(struct perf_ibs *perf_ibs, struct pt_regs *iregs)
static int
perf_ibs_nmi_handler(unsigned int cmd, struct pt_regs *regs)
{
u64 stamp = sched_clock();
int handled = 0;
handled += perf_ibs_handle_irq(&perf_ibs_fetch, regs);
@ -619,6 +646,8 @@ perf_ibs_nmi_handler(unsigned int cmd, struct pt_regs *regs)
if (handled)
inc_irq_stat(apic_perf_irqs);
perf_sample_event_took(sched_clock() - stamp);
return handled;
}
NOKPROBE_SYMBOL(perf_ibs_nmi_handler);

5
arch/x86/events/amd/iommu.c
View file

@ -118,6 +118,11 @@ static struct amd_iommu_event_desc amd_iommu_v2_event_descs[] = {
AMD_IOMMU_EVENT_DESC(cmd_processed, "csource=0x11"),
AMD_IOMMU_EVENT_DESC(cmd_processed_inv, "csource=0x12"),
AMD_IOMMU_EVENT_DESC(tlb_inv, "csource=0x13"),
AMD_IOMMU_EVENT_DESC(ign_rd_wr_mmio_1ff8h, "csource=0x14"),
AMD_IOMMU_EVENT_DESC(vapic_int_non_guest, "csource=0x15"),
AMD_IOMMU_EVENT_DESC(vapic_int_guest, "csource=0x16"),
AMD_IOMMU_EVENT_DESC(smi_recv, "csource=0x17"),
AMD_IOMMU_EVENT_DESC(smi_blk, "csource=0x18"),
{ /* end: all zeroes */ },
};

353
arch/x86/events/amd/power.c Normal file
View file

@ -0,0 +1,353 @@
/*
* Performance events - AMD Processor Power Reporting Mechanism
*
* Copyright (C) 2016 Advanced Micro Devices, Inc.
*
* Author: Huang Rui <ray.huang@amd.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/perf_event.h>
#include <asm/cpu_device_id.h>
#include "../perf_event.h"
#define MSR_F15H_CU_PWR_ACCUMULATOR 0xc001007a
#define MSR_F15H_CU_MAX_PWR_ACCUMULATOR 0xc001007b
#define MSR_F15H_PTSC 0xc0010280
/* Event code: LSB 8 bits, passed in attr->config any other bit is reserved. */
#define AMD_POWER_EVENT_MASK 0xFFULL
/*
* Accumulated power status counters.
*/
#define AMD_POWER_EVENTSEL_PKG 1
/*
* The ratio of compute unit power accumulator sample period to the
* PTSC period.
*/
static unsigned int cpu_pwr_sample_ratio;
/* Maximum accumulated power of a compute unit. */
static u64 max_cu_acc_power;
static struct pmu pmu_class;
/*
* Accumulated power represents the sum of each compute unit's (CU) power
* consumption. On any core of each CU we read the total accumulated power from
* MSR_F15H_CU_PWR_ACCUMULATOR. cpu_mask represents CPU bit map of all cores
* which are picked to measure the power for the CUs they belong to.
*/
static cpumask_t cpu_mask;
static void event_update(struct perf_event *event)
{
struct hw_perf_event *hwc = &event->hw;
u64 prev_pwr_acc, new_pwr_acc, prev_ptsc, new_ptsc;
u64 delta, tdelta;
prev_pwr_acc = hwc->pwr_acc;
prev_ptsc = hwc->ptsc;
rdmsrl(MSR_F15H_CU_PWR_ACCUMULATOR, new_pwr_acc);
rdmsrl(MSR_F15H_PTSC, new_ptsc);
/*
* Calculate the CU power consumption over a time period, the unit of
* final value (delta) is micro-Watts. Then add it to the event count.
*/
if (new_pwr_acc < prev_pwr_acc) {
delta = max_cu_acc_power + new_pwr_acc;
delta -= prev_pwr_acc;
} else
delta = new_pwr_acc - prev_pwr_acc;
delta *= cpu_pwr_sample_ratio * 1000;
tdelta = new_ptsc - prev_ptsc;
do_div(delta, tdelta);
local64_add(delta, &event->count);
}
static void __pmu_event_start(struct perf_event *event)
{
if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
return;
event->hw.state = 0;
rdmsrl(MSR_F15H_PTSC, event->hw.ptsc);
rdmsrl(MSR_F15H_CU_PWR_ACCUMULATOR, event->hw.pwr_acc);
}
static void pmu_event_start(struct perf_event *event, int mode)
{
__pmu_event_start(event);
}
static void pmu_event_stop(struct perf_event *event, int mode)
{
struct hw_perf_event *hwc = &event->hw;
/* Mark event as deactivated and stopped. */
if (!(hwc->state & PERF_HES_STOPPED))
hwc->state |= PERF_HES_STOPPED;
/* Check if software counter update is necessary. */
if ((mode & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
/*
* Drain the remaining delta count out of an event
* that we are disabling:
*/
event_update(event);
hwc->state |= PERF_HES_UPTODATE;
}
}
static int pmu_event_add(struct perf_event *event, int mode)
{
struct hw_perf_event *hwc = &event->hw;
hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
if (mode & PERF_EF_START)
__pmu_event_start(event);
return 0;
}
static void pmu_event_del(struct perf_event *event, int flags)
{
pmu_event_stop(event, PERF_EF_UPDATE);
}
static int pmu_event_init(struct perf_event *event)
{
u64 cfg = event->attr.config & AMD_POWER_EVENT_MASK;
/* Only look at AMD power events. */
if (event->attr.type != pmu_class.type)
return -ENOENT;
/* Unsupported modes and filters. */
if (event->attr.exclude_user ||
event->attr.exclude_kernel ||
event->attr.exclude_hv ||
event->attr.exclude_idle ||
event->attr.exclude_host ||
event->attr.exclude_guest ||
/* no sampling */
event->attr.sample_period)
return -EINVAL;
if (cfg != AMD_POWER_EVENTSEL_PKG)
return -EINVAL;
return 0;
}
static void pmu_event_read(struct perf_event *event)
{
event_update(event);
}
static ssize_t
get_attr_cpumask(struct device *dev, struct device_attribute *attr, char *buf)
{
return cpumap_print_to_pagebuf(true, buf, &cpu_mask);
}
static DEVICE_ATTR(cpumask, S_IRUGO, get_attr_cpumask, NULL);
static struct attribute *pmu_attrs[] = {
&dev_attr_cpumask.attr,
NULL,
};
static struct attribute_group pmu_attr_group = {
.attrs = pmu_attrs,
};
/*
* Currently it only supports to report the power of each
* processor/package.
*/
EVENT_ATTR_STR(power-pkg, power_pkg, "event=0x01");
EVENT_ATTR_STR(power-pkg.unit, power_pkg_unit, "mWatts");
/* Convert the count from micro-Watts to milli-Watts. */
EVENT_ATTR_STR(power-pkg.scale, power_pkg_scale, "1.000000e-3");
static struct attribute *events_attr[] = {
EVENT_PTR(power_pkg),
EVENT_PTR(power_pkg_unit),
EVENT_PTR(power_pkg_scale),
NULL,
};
static struct attribute_group pmu_events_group = {
.name = "events",
.attrs = events_attr,
};
PMU_FORMAT_ATTR(event, "config:0-7");
static struct attribute *formats_attr[] = {
&format_attr_event.attr,
NULL,
};
static struct attribute_group pmu_format_group = {
.name = "format",
.attrs = formats_attr,
};
static const struct attribute_group *attr_groups[] = {
&pmu_attr_group,
&pmu_format_group,
&pmu_events_group,
NULL,
};
static struct pmu pmu_class = {
.attr_groups = attr_groups,
/* system-wide only */
.task_ctx_nr = perf_invalid_context,
.event_init = pmu_event_init,
.add = pmu_event_add,
.del = pmu_event_del,
.start = pmu_event_start,
.stop = pmu_event_stop,
.read = pmu_event_read,
};
static void power_cpu_exit(int cpu)
{
int target;
if (!cpumask_test_and_clear_cpu(cpu, &cpu_mask))
return;
/*
* Find a new CPU on the same compute unit, if was set in cpumask
* and still some CPUs on compute unit. Then migrate event and
* context to new CPU.
*/
target = cpumask_any_but(topology_sibling_cpumask(cpu), cpu);
if (target < nr_cpumask_bits) {
cpumask_set_cpu(target, &cpu_mask);
perf_pmu_migrate_context(&pmu_class, cpu, target);
}
}
static void power_cpu_init(int cpu)
{
int target;
/*
* 1) If any CPU is set at cpu_mask in the same compute unit, do
* nothing.
* 2) If no CPU is set at cpu_mask in the same compute unit,
* set current STARTING CPU.
*
* Note: if there is a CPU aside of the new one already in the
* sibling mask, then it is also in cpu_mask.
*/
target = cpumask_any_but(topology_sibling_cpumask(cpu), cpu);
if (target >= nr_cpumask_bits)
cpumask_set_cpu(cpu, &cpu_mask);
}
static int
power_cpu_notifier(struct notifier_block *self, unsigned long action, void *hcpu)
{
unsigned int cpu = (long)hcpu;
switch (action & ~CPU_TASKS_FROZEN) {
case CPU_DOWN_FAILED:
case CPU_STARTING:
power_cpu_init(cpu);
break;
case CPU_DOWN_PREPARE:
power_cpu_exit(cpu);
break;
default:
break;
}
return NOTIFY_OK;
}
static struct notifier_block power_cpu_notifier_nb = {
.notifier_call = power_cpu_notifier,
.priority = CPU_PRI_PERF,
};
static const struct x86_cpu_id cpu_match[] = {
{ .vendor = X86_VENDOR_AMD, .family = 0x15 },
{},
};
static int __init amd_power_pmu_init(void)
{
int cpu, target, ret;
if (!x86_match_cpu(cpu_match))
return 0;
if (!boot_cpu_has(X86_FEATURE_ACC_POWER))
return -ENODEV;
cpu_pwr_sample_ratio = cpuid_ecx(0x80000007);
if (rdmsrl_safe(MSR_F15H_CU_MAX_PWR_ACCUMULATOR, &max_cu_acc_power)) {
pr_err("Failed to read max compute unit power accumulator MSR\n");
return -ENODEV;
}
cpu_notifier_register_begin();
/* Choose one online core of each compute unit. */
for_each_online_cpu(cpu) {
target = cpumask_first(topology_sibling_cpumask(cpu));
if (!cpumask_test_cpu(target, &cpu_mask))
cpumask_set_cpu(target, &cpu_mask);
}
ret = perf_pmu_register(&pmu_class, "power", -1);
if (WARN_ON(ret)) {
pr_warn("AMD Power PMU registration failed\n");
goto out;
}
__register_cpu_notifier(&power_cpu_notifier_nb);
pr_info("AMD Power PMU detected\n");
out:
cpu_notifier_register_done();
return ret;
}
module_init(amd_power_pmu_init);
static void __exit amd_power_pmu_exit(void)
{
cpu_notifier_register_begin();
__unregister_cpu_notifier(&power_cpu_notifier_nb);
cpu_notifier_register_done();
perf_pmu_unregister(&pmu_class);
}
module_exit(amd_power_pmu_exit);
MODULE_AUTHOR("Huang Rui <ray.huang@amd.com>");
MODULE_DESCRIPTION("AMD Processor Power Reporting Mechanism");
MODULE_LICENSE("GPL v2");

4
arch/x86/events/core.c
View file

@ -1602,8 +1602,7 @@ __init struct attribute **merge_attr(struct attribute **a, struct attribute **b)
return new;
}
ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr,
char *page)
ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr, char *page)
{
struct perf_pmu_events_attr *pmu_attr = \
container_of(attr, struct perf_pmu_events_attr, attr);
@ -1615,6 +1614,7 @@ ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr,
return x86_pmu.events_sysfs_show(page, config);
}
EXPORT_SYMBOL_GPL(events_sysfs_show);
EVENT_ATTR(cpu-cycles, CPU_CYCLES );
EVENT_ATTR(instructions, INSTRUCTIONS );

456
arch/x86/events/intel/cqm.c
View file

@ -13,8 +13,16 @@
#define MSR_IA32_QM_CTR 0x0c8e
#define MSR_IA32_QM_EVTSEL 0x0c8d
#define MBM_CNTR_WIDTH 24
/*
* Guaranteed time in ms as per SDM where MBM counters will not overflow.
*/
#define MBM_CTR_OVERFLOW_TIME 1000
static u32 cqm_max_rmid = -1;
static unsigned int cqm_l3_scale; /* supposedly cacheline size */
static bool cqm_enabled, mbm_enabled;
unsigned int mbm_socket_max;
/**
* struct intel_pqr_state - State cache for the PQR MSR
@ -42,7 +50,36 @@ struct intel_pqr_state {
* interrupts disabled, which is sufficient for the protection.
*/
static DEFINE_PER_CPU(struct intel_pqr_state, pqr_state);
static struct hrtimer *mbm_timers;
/**
* struct sample - mbm event's (local or total) data
* @total_bytes #bytes since we began monitoring
* @prev_msr previous value of MSR
*/
struct sample {
u64 total_bytes;
u64 prev_msr;
};
/*
* samples profiled for total memory bandwidth type events
*/
static struct sample *mbm_total;
/*
* samples profiled for local memory bandwidth type events
*/
static struct sample *mbm_local;
#define pkg_id topology_physical_package_id(smp_processor_id())
/*
* rmid_2_index returns the index for the rmid in mbm_local/mbm_total array.
* mbm_total[] and mbm_local[] are linearly indexed by socket# * max number of
* rmids per socket, an example is given below
* RMID1 of Socket0: vrmid = 1
* RMID1 of Socket1: vrmid = 1 * (cqm_max_rmid + 1) + 1
* RMID1 of Socket2: vrmid = 2 * (cqm_max_rmid + 1) + 1
*/
#define rmid_2_index(rmid) ((pkg_id * (cqm_max_rmid + 1)) + rmid)
/*
* Protects cache_cgroups and cqm_rmid_free_lru and cqm_rmid_limbo_lru.
* Also protects event->hw.cqm_rmid
@ -65,9 +102,13 @@ static cpumask_t cqm_cpumask;
#define RMID_VAL_ERROR (1ULL << 63)
#define RMID_VAL_UNAVAIL (1ULL << 62)
#define QOS_L3_OCCUP_EVENT_ID (1 << 0)
#define QOS_EVENT_MASK QOS_L3_OCCUP_EVENT_ID
/*
* Event IDs are used to program IA32_QM_EVTSEL before reading event
* counter from IA32_QM_CTR
*/
#define QOS_L3_OCCUP_EVENT_ID 0x01
#define QOS_MBM_TOTAL_EVENT_ID 0x02
#define QOS_MBM_LOCAL_EVENT_ID 0x03
/*
* This is central to the rotation algorithm in __intel_cqm_rmid_rotate().
@ -211,6 +252,21 @@ static void __put_rmid(u32 rmid)
list_add_tail(&entry->list, &cqm_rmid_limbo_lru);
}
static void cqm_cleanup(void)
{
int i;
if (!cqm_rmid_ptrs)
return;
for (i = 0; i < cqm_max_rmid; i++)
kfree(cqm_rmid_ptrs[i]);
kfree(cqm_rmid_ptrs);
cqm_rmid_ptrs = NULL;
cqm_enabled = false;
}
static int intel_cqm_setup_rmid_cache(void)
{
struct cqm_rmid_entry *entry;
@ -218,7 +274,7 @@ static int intel_cqm_setup_rmid_cache(void)
int r = 0;
nr_rmids = cqm_max_rmid + 1;
cqm_rmid_ptrs = kmalloc(sizeof(struct cqm_rmid_entry *) *
cqm_rmid_ptrs = kzalloc(sizeof(struct cqm_rmid_entry *) *
nr_rmids, GFP_KERNEL);
if (!cqm_rmid_ptrs)
return -ENOMEM;
@ -249,11 +305,9 @@ static int intel_cqm_setup_rmid_cache(void)
mutex_unlock(&cache_mutex);
return 0;
fail:
while (r--)
kfree(cqm_rmid_ptrs[r]);
kfree(cqm_rmid_ptrs);
fail:
cqm_cleanup();
return -ENOMEM;
}
@ -281,9 +335,13 @@ static bool __match_event(struct perf_event *a, struct perf_event *b)
/*
* Events that target same task are placed into the same cache group.
* Mark it as a multi event group, so that we update ->count
* for every event rather than just the group leader later.
*/
if (a->hw.target == b->hw.target)
if (a->hw.target == b->hw.target) {
b->hw.is_group_event = true;
return true;
}
/*
* Are we an inherited event?
@ -392,10 +450,26 @@ static bool __conflict_event(struct perf_event *a, struct perf_event *b)
struct rmid_read {
u32 rmid;
u32 evt_type;
atomic64_t value;
};
static void __intel_cqm_event_count(void *info);
static void init_mbm_sample(u32 rmid, u32 evt_type);
static void __intel_mbm_event_count(void *info);
static bool is_mbm_event(int e)
{
return (e >= QOS_MBM_TOTAL_EVENT_ID && e <= QOS_MBM_LOCAL_EVENT_ID);
}
static void cqm_mask_call(struct rmid_read *rr)
{
if (is_mbm_event(rr->evt_type))
on_each_cpu_mask(&cqm_cpumask, __intel_mbm_event_count, rr, 1);
else
on_each_cpu_mask(&cqm_cpumask, __intel_cqm_event_count, rr, 1);
}
/*
* Exchange the RMID of a group of events.
@ -413,12 +487,12 @@ static u32 intel_cqm_xchg_rmid(struct perf_event *group, u32 rmid)
*/
if (__rmid_valid(old_rmid) && !__rmid_valid(rmid)) {
struct rmid_read rr = {
.value = ATOMIC64_INIT(0),
.rmid = old_rmid,
.evt_type = group->attr.config,
.value = ATOMIC64_INIT(0),
};
on_each_cpu_mask(&cqm_cpumask, __intel_cqm_event_count,
&rr, 1);
cqm_mask_call(&rr);
local64_set(&group->count, atomic64_read(&rr.value));
}
@ -430,6 +504,22 @@ static u32 intel_cqm_xchg_rmid(struct perf_event *group, u32 rmid)
raw_spin_unlock_irq(&cache_lock);
/*
* If the allocation is for mbm, init the mbm stats.
* Need to check if each event in the group is mbm event
* because there could be multiple type of events in the same group.
*/
if (__rmid_valid(rmid)) {
event = group;
if (is_mbm_event(event->attr.config))
init_mbm_sample(rmid, event->attr.config);
list_for_each_entry(event, head, hw.cqm_group_entry) {
if (is_mbm_event(event->attr.config))
init_mbm_sample(rmid, event->attr.config);
}
}
return old_rmid;
}
@ -837,6 +927,72 @@ static void intel_cqm_rmid_rotate(struct work_struct *work)
schedule_delayed_work(&intel_cqm_rmid_work, delay);
}
static u64 update_sample(unsigned int rmid, u32 evt_type, int first)
{
struct sample *mbm_current;
u32 vrmid = rmid_2_index(rmid);
u64 val, bytes, shift;
u32 eventid;
if (evt_type == QOS_MBM_LOCAL_EVENT_ID) {
mbm_current = &mbm_local[vrmid];
eventid = QOS_MBM_LOCAL_EVENT_ID;
} else {
mbm_current = &mbm_total[vrmid];
eventid = QOS_MBM_TOTAL_EVENT_ID;
}
wrmsr(MSR_IA32_QM_EVTSEL, eventid, rmid);
rdmsrl(MSR_IA32_QM_CTR, val);
if (val & (RMID_VAL_ERROR | RMID_VAL_UNAVAIL))
return mbm_current->total_bytes;
if (first) {
mbm_current->prev_msr = val;
mbm_current->total_bytes = 0;
return mbm_current->total_bytes;
}
/*
* The h/w guarantees that counters will not overflow
* so long as we poll them at least once per second.
*/
shift = 64 - MBM_CNTR_WIDTH;
bytes = (val << shift) - (mbm_current->prev_msr << shift);
bytes >>= shift;
bytes *= cqm_l3_scale;
mbm_current->total_bytes += bytes;
mbm_current->prev_msr = val;
return mbm_current->total_bytes;
}
static u64 rmid_read_mbm(unsigned int rmid, u32 evt_type)
{
return update_sample(rmid, evt_type, 0);
}
static void __intel_mbm_event_init(void *info)
{
struct rmid_read *rr = info;
update_sample(rr->rmid, rr->evt_type, 1);
}
static void init_mbm_sample(u32 rmid, u32 evt_type)
{
struct rmid_read rr = {
.rmid = rmid,
.evt_type = evt_type,
.value = ATOMIC64_INIT(0),
};
/* on each socket, init sample */
on_each_cpu_mask(&cqm_cpumask, __intel_mbm_event_init, &rr, 1);
}
/*
* Find a group and setup RMID.
*
@ -849,6 +1005,7 @@ static void intel_cqm_setup_event(struct perf_event *event,
bool conflict = false;
u32 rmid;
event->hw.is_group_event = false;
list_for_each_entry(iter, &cache_groups, hw.cqm_groups_entry) {
rmid = iter->hw.cqm_rmid;
@ -856,6 +1013,8 @@ static void intel_cqm_setup_event(struct perf_event *event,
/* All tasks in a group share an RMID */
event->hw.cqm_rmid = rmid;
*group = iter;
if (is_mbm_event(event->attr.config) && __rmid_valid(rmid))
init_mbm_sample(rmid, event->attr.config);
return;
}
@ -872,6 +1031,9 @@ static void intel_cqm_setup_event(struct perf_event *event,
else
rmid = __get_rmid();
if (is_mbm_event(event->attr.config) && __rmid_valid(rmid))
init_mbm_sample(rmid, event->attr.config);
event->hw.cqm_rmid = rmid;
}
@ -893,7 +1055,10 @@ static void intel_cqm_event_read(struct perf_event *event)
if (!__rmid_valid(rmid))
goto out;
val = __rmid_read(rmid);
if (is_mbm_event(event->attr.config))
val = rmid_read_mbm(rmid, event->attr.config);
else
val = __rmid_read(rmid);
/*
* Ignore this reading on error states and do not update the value.
@ -924,10 +1089,100 @@ static inline bool cqm_group_leader(struct perf_event *event)
return !list_empty(&event->hw.cqm_groups_entry);
}
static void __intel_mbm_event_count(void *info)
{
struct rmid_read *rr = info;
u64 val;
val = rmid_read_mbm(rr->rmid, rr->evt_type);
if (val & (RMID_VAL_ERROR | RMID_VAL_UNAVAIL))
return;
atomic64_add(val, &rr->value);
}
static enum hrtimer_restart mbm_hrtimer_handle(struct hrtimer *hrtimer)
{
struct perf_event *iter, *iter1;
int ret = HRTIMER_RESTART;
struct list_head *head;
unsigned long flags;
u32 grp_rmid;
/*
* Need to cache_lock as the timer Event Select MSR reads
* can race with the mbm/cqm count() and mbm_init() reads.
*/
raw_spin_lock_irqsave(&cache_lock, flags);
if (list_empty(&cache_groups)) {
ret = HRTIMER_NORESTART;
goto out;
}
list_for_each_entry(iter, &cache_groups, hw.cqm_groups_entry) {
grp_rmid = iter->hw.cqm_rmid;
if (!__rmid_valid(grp_rmid))
continue;
if (is_mbm_event(iter->attr.config))
update_sample(grp_rmid, iter->attr.config, 0);
head = &iter->hw.cqm_group_entry;
if (list_empty(head))
continue;
list_for_each_entry(iter1, head, hw.cqm_group_entry) {
if (!iter1->hw.is_group_event)
break;
if (is_mbm_event(iter1->attr.config))
update_sample(iter1->hw.cqm_rmid,
iter1->attr.config, 0);
}
}
hrtimer_forward_now(hrtimer, ms_to_ktime(MBM_CTR_OVERFLOW_TIME));
out:
raw_spin_unlock_irqrestore(&cache_lock, flags);
return ret;
}
static void __mbm_start_timer(void *info)
{
hrtimer_start(&mbm_timers[pkg_id], ms_to_ktime(MBM_CTR_OVERFLOW_TIME),
HRTIMER_MODE_REL_PINNED);
}
static void __mbm_stop_timer(void *info)
{
hrtimer_cancel(&mbm_timers[pkg_id]);
}
static void mbm_start_timers(void)
{
on_each_cpu_mask(&cqm_cpumask, __mbm_start_timer, NULL, 1);
}
static void mbm_stop_timers(void)
{
on_each_cpu_mask(&cqm_cpumask, __mbm_stop_timer, NULL, 1);
}
static void mbm_hrtimer_init(void)
{
struct hrtimer *hr;
int i;
for (i = 0; i < mbm_socket_max; i++) {
hr = &mbm_timers[i];
hrtimer_init(hr, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
hr->function = mbm_hrtimer_handle;
}
}
static u64 intel_cqm_event_count(struct perf_event *event)
{
unsigned long flags;
struct rmid_read rr = {
.evt_type = event->attr.config,
.value = ATOMIC64_INIT(0),
};
@ -940,7 +1195,9 @@ static u64 intel_cqm_event_count(struct perf_event *event)
return __perf_event_count(event);
/*
* Only the group leader gets to report values. This stops us
* Only the group leader gets to report values except in case of
* multiple events in the same group, we still need to read the
* other events.This stops us
* reporting duplicate values to userspace, and gives us a clear
* rule for which task gets to report the values.
*
@ -948,7 +1205,7 @@ static u64 intel_cqm_event_count(struct perf_event *event)
* specific packages - we forfeit that ability when we create
* task events.
*/
if (!cqm_group_leader(event))
if (!cqm_group_leader(event) && !event->hw.is_group_event)
return 0;
/*
@ -975,7 +1232,7 @@ static u64 intel_cqm_event_count(struct perf_event *event)
if (!__rmid_valid(rr.rmid))
goto out;
on_each_cpu_mask(&cqm_cpumask, __intel_cqm_event_count, &rr, 1);
cqm_mask_call(&rr);
raw_spin_lock_irqsave(&cache_lock, flags);
if (event->hw.cqm_rmid == rr.rmid)
@ -1046,8 +1303,14 @@ static int intel_cqm_event_add(struct perf_event *event, int mode)
static void intel_cqm_event_destroy(struct perf_event *event)
{
struct perf_event *group_other = NULL;
unsigned long flags;
mutex_lock(&cache_mutex);
/*
* Hold the cache_lock as mbm timer handlers could be
* scanning the list of events.
*/
raw_spin_lock_irqsave(&cache_lock, flags);
/*
* If there's another event in this group...
@ -1079,6 +1342,14 @@ static void intel_cqm_event_destroy(struct perf_event *event)
}
}
raw_spin_unlock_irqrestore(&cache_lock, flags);
/*
* Stop the mbm overflow timers when the last event is destroyed.
*/
if (mbm_enabled && list_empty(&cache_groups))
mbm_stop_timers();
mutex_unlock(&cache_mutex);
}
@ -1086,11 +1357,13 @@ static int intel_cqm_event_init(struct perf_event *event)
{
struct perf_event *group = NULL;
bool rotate = false;
unsigned long flags;
if (event->attr.type != intel_cqm_pmu.type)
return -ENOENT;
if (event->attr.config & ~QOS_EVENT_MASK)
if ((event->attr.config < QOS_L3_OCCUP_EVENT_ID) ||
(event->attr.config > QOS_MBM_LOCAL_EVENT_ID))
return -EINVAL;
/* unsupported modes and filters */
@ -1110,9 +1383,21 @@ static int intel_cqm_event_init(struct perf_event *event)
mutex_lock(&cache_mutex);
/*
* Start the mbm overflow timers when the first event is created.
*/
if (mbm_enabled && list_empty(&cache_groups))
mbm_start_timers();
/* Will also set rmid */
intel_cqm_setup_event(event, &group);
/*
* Hold the cache_lock as mbm timer handlers be
* scanning the list of events.
*/
raw_spin_lock_irqsave(&cache_lock, flags);
if (group) {
list_add_tail(&event->hw.cqm_group_entry,
&group->hw.cqm_group_entry);
@ -1131,6 +1416,7 @@ static int intel_cqm_event_init(struct perf_event *event)
rotate = true;
}
raw_spin_unlock_irqrestore(&cache_lock, flags);
mutex_unlock(&cache_mutex);
if (rotate)
@ -1145,6 +1431,16 @@ EVENT_ATTR_STR(llc_occupancy.unit, intel_cqm_llc_unit, "Bytes");
EVENT_ATTR_STR(llc_occupancy.scale, intel_cqm_llc_scale, NULL);
EVENT_ATTR_STR(llc_occupancy.snapshot, intel_cqm_llc_snapshot, "1");
EVENT_ATTR_STR(total_bytes, intel_cqm_total_bytes, "event=0x02");
EVENT_ATTR_STR(total_bytes.per-pkg, intel_cqm_total_bytes_pkg, "1");
EVENT_ATTR_STR(total_bytes.unit, intel_cqm_total_bytes_unit, "MB");
EVENT_ATTR_STR(total_bytes.scale, intel_cqm_total_bytes_scale, "1e-6");
EVENT_ATTR_STR(local_bytes, intel_cqm_local_bytes, "event=0x03");
EVENT_ATTR_STR(local_bytes.per-pkg, intel_cqm_local_bytes_pkg, "1");
EVENT_ATTR_STR(local_bytes.unit, intel_cqm_local_bytes_unit, "MB");
EVENT_ATTR_STR(local_bytes.scale, intel_cqm_local_bytes_scale, "1e-6");
static struct attribute *intel_cqm_events_attr[] = {
EVENT_PTR(intel_cqm_llc),
EVENT_PTR(intel_cqm_llc_pkg),
@ -1154,9 +1450,38 @@ static struct attribute *intel_cqm_events_attr[] = {
NULL,
};
static struct attribute *intel_mbm_events_attr[] = {
EVENT_PTR(intel_cqm_total_bytes),
EVENT_PTR(intel_cqm_local_bytes),
EVENT_PTR(intel_cqm_total_bytes_pkg),
EVENT_PTR(intel_cqm_local_bytes_pkg),
EVENT_PTR(intel_cqm_total_bytes_unit),
EVENT_PTR(intel_cqm_local_bytes_unit),
EVENT_PTR(intel_cqm_total_bytes_scale),
EVENT_PTR(intel_cqm_local_bytes_scale),
NULL,
};
static struct attribute *intel_cmt_mbm_events_attr[] = {
EVENT_PTR(intel_cqm_llc),
EVENT_PTR(intel_cqm_total_bytes),
EVENT_PTR(intel_cqm_local_bytes),
EVENT_PTR(intel_cqm_llc_pkg),
EVENT_PTR(intel_cqm_total_bytes_pkg),
EVENT_PTR(intel_cqm_local_bytes_pkg),
EVENT_PTR(intel_cqm_llc_unit),
EVENT_PTR(intel_cqm_total_bytes_unit),
EVENT_PTR(intel_cqm_local_bytes_unit),
EVENT_PTR(intel_cqm_llc_scale),
EVENT_PTR(intel_cqm_total_bytes_scale),
EVENT_PTR(intel_cqm_local_bytes_scale),
EVENT_PTR(intel_cqm_llc_snapshot),
NULL,
};
static struct attribute_group intel_cqm_events_group = {
.name = "events",
.attrs = intel_cqm_events_attr,
.attrs = NULL,
};
PMU_FORMAT_ATTR(event, "config:0-7");
@ -1303,12 +1628,70 @@ static const struct x86_cpu_id intel_cqm_match[] = {
{}
};
static void mbm_cleanup(void)
{
if (!mbm_enabled)
return;
kfree(mbm_local);
kfree(mbm_total);
mbm_enabled = false;
}
static const struct x86_cpu_id intel_mbm_local_match[] = {
{ .vendor = X86_VENDOR_INTEL, .feature = X86_FEATURE_CQM_MBM_LOCAL },
{}
};
static const struct x86_cpu_id intel_mbm_total_match[] = {
{ .vendor = X86_VENDOR_INTEL, .feature = X86_FEATURE_CQM_MBM_TOTAL },
{}
};
static int intel_mbm_init(void)
{
int ret = 0, array_size, maxid = cqm_max_rmid + 1;
mbm_socket_max = topology_max_packages();
array_size = sizeof(struct sample) * maxid * mbm_socket_max;
mbm_local = kmalloc(array_size, GFP_KERNEL);
if (!mbm_local)
return -ENOMEM;
mbm_total = kmalloc(array_size, GFP_KERNEL);
if (!mbm_total) {
ret = -ENOMEM;
goto out;
}
array_size = sizeof(struct hrtimer) * mbm_socket_max;
mbm_timers = kmalloc(array_size, GFP_KERNEL);
if (!mbm_timers) {
ret = -ENOMEM;
goto out;
}
mbm_hrtimer_init();
out:
if (ret)
mbm_cleanup();
return ret;
}
static int __init intel_cqm_init(void)
{
char *str, scale[20];
char *str = NULL, scale[20];
int i, cpu, ret;
if (!x86_match_cpu(intel_cqm_match))
if (x86_match_cpu(intel_cqm_match))
cqm_enabled = true;
if (x86_match_cpu(intel_mbm_local_match) &&
x86_match_cpu(intel_mbm_total_match))
mbm_enabled = true;
if (!cqm_enabled && !mbm_enabled)
return -ENODEV;
cqm_l3_scale = boot_cpu_data.x86_cache_occ_scale;
@ -1365,16 +1748,41 @@ static int __init intel_cqm_init(void)
cqm_pick_event_reader(i);
}
__perf_cpu_notifier(intel_cqm_cpu_notifier);
if (mbm_enabled)
ret = intel_mbm_init();
if (ret && !cqm_enabled)
goto out;
if (cqm_enabled && mbm_enabled)
intel_cqm_events_group.attrs = intel_cmt_mbm_events_attr;
else if (!cqm_enabled && mbm_enabled)
intel_cqm_events_group.attrs = intel_mbm_events_attr;
else if (cqm_enabled && !mbm_enabled)
intel_cqm_events_group.attrs = intel_cqm_events_attr;
ret = perf_pmu_register(&intel_cqm_pmu, "intel_cqm", -1);
if (ret)
if (ret) {
pr_err("Intel CQM perf registration failed: %d\n", ret);
else
pr_info("Intel CQM monitoring enabled\n");
goto out;
}
if (cqm_enabled)
pr_info("Intel CQM monitoring enabled\n");
if (mbm_enabled)
pr_info("Intel MBM enabled\n");
/*
* Register the hot cpu notifier once we are sure cqm
* is enabled to avoid notifier leak.
*/
__perf_cpu_notifier(intel_cqm_cpu_notifier);
out:
cpu_notifier_register_done();
if (ret) {
kfree(str);
cqm_cleanup();
mbm_cleanup();
}
return ret;
}

5
arch/x86/events/intel/ds.c
View file

@ -570,11 +570,12 @@ int intel_pmu_drain_bts_buffer(void)
* We will overwrite the from and to address before we output
* the sample.
*/
rcu_read_lock();
perf_prepare_sample(&header, &data, event, &regs);
if (perf_output_begin(&handle, event, header.size *
(top - base - skip)))
return 1;
goto unlock;
for (at = base; at < top; at++) {
/* Filter out any records that contain kernel addresses. */
@ -593,6 +594,8 @@ int intel_pmu_drain_bts_buffer(void)
/* There's new data available. */
event->hw.interrupts++;
event->pending_kill = POLL_IN;
unlock:
rcu_read_unlock();
return 1;
}

2
arch/x86/events/intel/rapl.c
View file

@ -711,6 +711,7 @@ static int __init rapl_pmu_init(void)
rapl_pmu_events_group.attrs = rapl_events_cln_attr;
break;
case 63: /* Haswell-Server */
case 79: /* Broadwell-Server */
apply_quirk = true;
rapl_cntr_mask = RAPL_IDX_SRV;
rapl_pmu_events_group.attrs = rapl_events_srv_attr;
@ -718,6 +719,7 @@ static int __init rapl_pmu_init(void)
case 60: /* Haswell */
case 69: /* Haswell-Celeron */
case 61: /* Broadwell */
case 71: /* Broadwell-H */
rapl_cntr_mask = RAPL_IDX_HSW;
rapl_pmu_events_group.attrs = rapl_events_hsw_attr;
break;

7
arch/x86/events/intel/uncore_snbep.c
View file

@ -46,7 +46,6 @@
(SNBEP_PMON_CTL_EV_SEL_MASK | \
SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
SNBEP_PMON_CTL_EDGE_DET | \
SNBEP_PMON_CTL_EV_SEL_EXT | \
SNBEP_PMON_CTL_INVERT | \
SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \
SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
@ -148,7 +147,6 @@
/* IVBEP PCU */
#define IVBEP_PCU_MSR_PMON_RAW_EVENT_MASK \
(SNBEP_PMON_CTL_EV_SEL_MASK | \
SNBEP_PMON_CTL_EV_SEL_EXT | \
SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
SNBEP_PMON_CTL_EDGE_DET | \
SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \
@ -258,7 +256,6 @@
SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
SNBEP_PMON_CTL_EDGE_DET | \
SNBEP_CBO_PMON_CTL_TID_EN | \
SNBEP_PMON_CTL_EV_SEL_EXT | \
SNBEP_PMON_CTL_INVERT | \
KNL_PCU_MSR_PMON_CTL_TRESH_MASK | \
SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
@ -472,7 +469,7 @@ static struct attribute *snbep_uncore_cbox_formats_attr[] = {
};
static struct attribute *snbep_uncore_pcu_formats_attr[] = {
&format_attr_event_ext.attr,
&format_attr_event.attr,
&format_attr_occ_sel.attr,
&format_attr_edge.attr,
&format_attr_inv.attr,
@ -1313,7 +1310,7 @@ static struct attribute *ivbep_uncore_cbox_formats_attr[] = {
};
static struct attribute *ivbep_uncore_pcu_formats_attr[] = {
&format_attr_event_ext.attr,
&format_attr_event.attr,
&format_attr_occ_sel.attr,
&format_attr_edge.attr,
&format_attr_thresh5.attr,

4
arch/x86/include/asm/cpufeatures.h
View file

@ -94,7 +94,7 @@
#define X86_FEATURE_REP_GOOD ( 3*32+16) /* rep microcode works well */
#define X86_FEATURE_MFENCE_RDTSC ( 3*32+17) /* "" Mfence synchronizes RDTSC */
#define X86_FEATURE_LFENCE_RDTSC ( 3*32+18) /* "" Lfence synchronizes RDTSC */
/* free, was #define X86_FEATURE_11AP ( 3*32+19) * "" Bad local APIC aka 11AP */
#define X86_FEATURE_ACC_POWER ( 3*32+19) /* AMD Accumulated Power Mechanism */
#define X86_FEATURE_NOPL ( 3*32+20) /* The NOPL (0F 1F) instructions */
#define X86_FEATURE_ALWAYS ( 3*32+21) /* "" Always-present feature */
#define X86_FEATURE_XTOPOLOGY ( 3*32+22) /* cpu topology enum extensions */
@ -245,6 +245,8 @@
/* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:1 (edx), word 12 */
#define X86_FEATURE_CQM_OCCUP_LLC (12*32+ 0) /* LLC occupancy monitoring if 1 */
#define X86_FEATURE_CQM_MBM_TOTAL (12*32+ 1) /* LLC Total MBM monitoring */
#define X86_FEATURE_CQM_MBM_LOCAL (12*32+ 2) /* LLC Local MBM monitoring */
/* AMD-defined CPU features, CPUID level 0x80000008 (ebx), word 13 */
#define X86_FEATURE_CLZERO (13*32+0) /* CLZERO instruction */

18
arch/x86/kernel/cpu/amd.c
View file

@ -309,7 +309,6 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
u32 eax, ebx, ecx, edx;
cpuid(0x8000001e, &eax, &ebx, &ecx, &edx);
nodes_per_socket = ((ecx >> 8) & 7) + 1;
node_id = ecx & 7;
/* get compute unit information */
@ -320,7 +319,6 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
u64 value;
rdmsrl(MSR_FAM10H_NODE_ID, value);
nodes_per_socket = ((value >> 3) & 7) + 1;
node_id = value & 7;
} else
return;
@ -522,6 +520,18 @@ static void bsp_init_amd(struct cpuinfo_x86 *c)
if (cpu_has(c, X86_FEATURE_MWAITX))
use_mwaitx_delay();
if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
u32 ecx;
ecx = cpuid_ecx(0x8000001e);
nodes_per_socket = ((ecx >> 8) & 7) + 1;
} else if (boot_cpu_has(X86_FEATURE_NODEID_MSR)) {
u64 value;
rdmsrl(MSR_FAM10H_NODE_ID, value);
nodes_per_socket = ((value >> 3) & 7) + 1;
}
}
static void early_init_amd(struct cpuinfo_x86 *c)
@ -539,6 +549,10 @@ static void early_init_amd(struct cpuinfo_x86 *c)
set_sched_clock_stable();
}
/* Bit 12 of 8000_0007 edx is accumulated power mechanism. */
if (c->x86_power & BIT(12))
set_cpu_cap(c, X86_FEATURE_ACC_POWER);
#ifdef CONFIG_X86_64
set_cpu_cap(c, X86_FEATURE_SYSCALL32);
#else

4
arch/x86/kernel/cpu/common.c
View file

@ -692,7 +692,9 @@ void get_cpu_cap(struct cpuinfo_x86 *c)
cpuid_count(0x0000000F, 1, &eax, &ebx, &ecx, &edx);
c->x86_capability[CPUID_F_1_EDX] = edx;
if (cpu_has(c, X86_FEATURE_CQM_OCCUP_LLC)) {
if ((cpu_has(c, X86_FEATURE_CQM_OCCUP_LLC)) ||
((cpu_has(c, X86_FEATURE_CQM_MBM_TOTAL)) ||
(cpu_has(c, X86_FEATURE_CQM_MBM_LOCAL)))) {
c->x86_cache_max_rmid = ecx;
c->x86_cache_occ_scale = ebx;
}

5
include/linux/perf_event.h
View file

@ -121,6 +121,7 @@ struct hw_perf_event {
struct { /* intel_cqm */
int cqm_state;
u32 cqm_rmid;
int is_group_event;
struct list_head cqm_events_entry;
struct list_head cqm_groups_entry;
struct list_head cqm_group_entry;
@ -128,6 +129,10 @@ struct hw_perf_event {
struct { /* itrace */
int itrace_started;
};
struct { /* amd_power */
u64 pwr_acc;
u64 ptsc;
};
#ifdef CONFIG_HAVE_HW_BREAKPOINT
struct { /* breakpoint */
/*

114
kernel/events/core.c
View file

@ -376,8 +376,11 @@ static void update_perf_cpu_limits(void)
u64 tmp = perf_sample_period_ns;
tmp *= sysctl_perf_cpu_time_max_percent;
do_div(tmp, 100);
ACCESS_ONCE(perf_sample_allowed_ns) = tmp;
tmp = div_u64(tmp, 100);
if (!tmp)
tmp = 1;
WRITE_ONCE(perf_sample_allowed_ns, tmp);
}
static int perf_rotate_context(struct perf_cpu_context *cpuctx);
@ -409,7 +412,13 @@ int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
if (ret || !write)
return ret;
update_perf_cpu_limits();
if (sysctl_perf_cpu_time_max_percent == 100) {
printk(KERN_WARNING
"perf: Dynamic interrupt throttling disabled, can hang your system!\n");
WRITE_ONCE(perf_sample_allowed_ns, 0);
} else {
update_perf_cpu_limits();
}
return 0;
}
@ -423,62 +432,68 @@ int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
#define NR_ACCUMULATED_SAMPLES 128
static DEFINE_PER_CPU(u64, running_sample_length);
static u64 __report_avg;
static u64 __report_allowed;
static void perf_duration_warn(struct irq_work *w)
{
u64 allowed_ns = ACCESS_ONCE(perf_sample_allowed_ns);
u64 avg_local_sample_len;
u64 local_samples_len;
local_samples_len = __this_cpu_read(running_sample_length);
avg_local_sample_len = local_samples_len/NR_ACCUMULATED_SAMPLES;
printk_ratelimited(KERN_WARNING
"perf interrupt took too long (%lld > %lld), lowering "
"kernel.perf_event_max_sample_rate to %d\n",
avg_local_sample_len, allowed_ns >> 1,
sysctl_perf_event_sample_rate);
"perf: interrupt took too long (%lld > %lld), lowering "
"kernel.perf_event_max_sample_rate to %d\n",
__report_avg, __report_allowed,
sysctl_perf_event_sample_rate);
}
static DEFINE_IRQ_WORK(perf_duration_work, perf_duration_warn);
void perf_sample_event_took(u64 sample_len_ns)
{
u64 allowed_ns = ACCESS_ONCE(perf_sample_allowed_ns);
u64 avg_local_sample_len;
u64 local_samples_len;
u64 max_len = READ_ONCE(perf_sample_allowed_ns);
u64 running_len;
u64 avg_len;
u32 max;
if (allowed_ns == 0)
if (max_len == 0)
return;
/* decay the counter by 1 average sample */
local_samples_len = __this_cpu_read(running_sample_length);
local_samples_len -= local_samples_len/NR_ACCUMULATED_SAMPLES;
local_samples_len += sample_len_ns;
__this_cpu_write(running_sample_length, local_samples_len);
/* Decay the counter by 1 average sample. */
running_len = __this_cpu_read(running_sample_length);
running_len -= running_len/NR_ACCUMULATED_SAMPLES;
running_len += sample_len_ns;
__this_cpu_write(running_sample_length, running_len);
/*
* note: this will be biased artifically low until we have
* seen NR_ACCUMULATED_SAMPLES. Doing it this way keeps us
* Note: this will be biased artifically low until we have
* seen NR_ACCUMULATED_SAMPLES. Doing it this way keeps us
* from having to maintain a count.
*/
avg_local_sample_len = local_samples_len/NR_ACCUMULATED_SAMPLES;
if (avg_local_sample_len <= allowed_ns)
avg_len = running_len/NR_ACCUMULATED_SAMPLES;
if (avg_len <= max_len)
return;
if (max_samples_per_tick <= 1)
return;
__report_avg = avg_len;
__report_allowed = max_len;
max_samples_per_tick = DIV_ROUND_UP(max_samples_per_tick, 2);
sysctl_perf_event_sample_rate = max_samples_per_tick * HZ;
/*
* Compute a throttle threshold 25% below the current duration.
*/
avg_len += avg_len / 4;
max = (TICK_NSEC / 100) * sysctl_perf_cpu_time_max_percent;
if (avg_len < max)
max /= (u32)avg_len;
else
max = 1;
WRITE_ONCE(perf_sample_allowed_ns, avg_len);
WRITE_ONCE(max_samples_per_tick, max);
sysctl_perf_event_sample_rate = max * HZ;
perf_sample_period_ns = NSEC_PER_SEC / sysctl_perf_event_sample_rate;
update_perf_cpu_limits();
if (!irq_work_queue(&perf_duration_work)) {
early_printk("perf interrupt took too long (%lld > %lld), lowering "
early_printk("perf: interrupt took too long (%lld > %lld), lowering "
"kernel.perf_event_max_sample_rate to %d\n",
avg_local_sample_len, allowed_ns >> 1,
__report_avg, __report_allowed,
sysctl_perf_event_sample_rate);
}
}
@ -4210,6 +4225,14 @@ static void __perf_event_period(struct perf_event *event,
active = (event->state == PERF_EVENT_STATE_ACTIVE);
if (active) {
perf_pmu_disable(ctx->pmu);
/*
* We could be throttled; unthrottle now to avoid the tick
* trying to unthrottle while we already re-started the event.
*/
if (event->hw.interrupts == MAX_INTERRUPTS) {
event->hw.interrupts = 0;
perf_log_throttle(event, 1);
}
event->pmu->stop(event, PERF_EF_UPDATE);
}
@ -9426,10 +9449,29 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu)
switch (action & ~CPU_TASKS_FROZEN) {
case CPU_UP_PREPARE:
/*
* This must be done before the CPU comes alive, because the
* moment we can run tasks we can encounter (software) events.
*
* Specifically, someone can have inherited events on kthreadd
* or a pre-existing worker thread that gets re-bound.
*/
perf_event_init_cpu(cpu);
break;
case CPU_DOWN_PREPARE:
/*
* This must be done before the CPU dies because after that an
* active event might want to IPI the CPU and that'll not work
* so great for dead CPUs.
*
* XXX smp_call_function_single() return -ENXIO without a warn
* so we could possibly deal with this.
*
* This is safe against new events arriving because
* sys_perf_event_open() serializes against hotplug using
* get_online_cpus().
*/
perf_event_exit_cpu(cpu);
break;
default:

6
kernel/events/ring_buffer.c
View file

@ -746,8 +746,10 @@ struct ring_buffer *rb_alloc(int nr_pages, long watermark, int cpu, int flags)
rb->user_page = all_buf;
rb->data_pages[0] = all_buf + PAGE_SIZE;
rb->page_order = ilog2(nr_pages);
rb->nr_pages = !!nr_pages;
if (nr_pages) {
rb->nr_pages = 1;
rb->page_order = ilog2(nr_pages);
}
ring_buffer_init(rb, watermark, flags);

12
tools/include/linux/stringify.h Normal file
View file

@ -0,0 +1,12 @@
#ifndef __LINUX_STRINGIFY_H
#define __LINUX_STRINGIFY_H
/* Indirect stringification. Doing two levels allows the parameter to be a
* macro itself. For example, compile with -DFOO=bar, __stringify(FOO)
* converts to "bar".
*/
#define __stringify_1(x...) #x
#define __stringify(x...) __stringify_1(x)
#endif /* !__LINUX_STRINGIFY_H */

2
tools/lib/api/Makefile
View file

@ -1,5 +1,5 @@
include ../../scripts/Makefile.include
include ../../perf/config/utilities.mak # QUIET_CLEAN
include ../../scripts/utilities.mak # QUIET_CLEAN
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))

2
tools/lib/subcmd/Makefile
View file

@ -1,5 +1,5 @@
include ../../scripts/Makefile.include
include ../../perf/config/utilities.mak # QUIET_CLEAN
include ../../scripts/utilities.mak # QUIET_CLEAN
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))

4
tools/lib/traceevent/event-parse.c
View file

@ -5427,10 +5427,8 @@ void pevent_print_event_time(struct pevent *pevent, struct trace_seq *s,
}
if (pevent->latency_format) {
trace_seq_printf(s, " %3d", record->cpu);
pevent_data_lat_fmt(pevent, s, record);
} else
trace_seq_printf(s, " [%03d]", record->cpu);
}
if (use_usec_format) {
if (pevent->flags & PEVENT_NSEC_OUTPUT) {

2
tools/perf/Documentation/Makefile
View file

@ -1,5 +1,5 @@
include ../../scripts/Makefile.include
include ../config/utilities.mak
include ../../scripts/utilities.mak
MAN1_TXT= \
$(filter-out $(addsuffix .txt, $(ARTICLES) $(SP_ARTICLES)), \

6
tools/perf/Documentation/perf-list.txt
View file

@ -40,10 +40,12 @@ address should be. The 'p' modifier can be specified multiple times:
0 - SAMPLE_IP can have arbitrary skid
1 - SAMPLE_IP must have constant skid
2 - SAMPLE_IP requested to have 0 skid
3 - SAMPLE_IP must have 0 skid
3 - SAMPLE_IP must have 0 skid, or uses randomization to avoid
sample shadowing effects.
For Intel systems precise event sampling is implemented with PEBS
which supports up to precise-level 2.
which supports up to precise-level 2, and precise level 3 for
some special cases
On AMD systems it is implemented using IBS (up to precise-level 2).
The precise modifier works with event types 0x76 (cpu-cycles, CPU

2
tools/perf/Makefile.perf
View file

@ -3,7 +3,7 @@ include ../scripts/Makefile.include
# The default target of this Makefile is...
all:
include config/utilities.mak
include ../scripts/utilities.mak
# Define V to have a more verbose compile.
#

4
tools/perf/arch/powerpc/util/header.c
View file

@ -3,9 +3,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../../util/header.h"
#include "../../util/util.h"
#include <linux/stringify.h>
#define mfspr(rn) ({unsigned long rval; \
asm volatile("mfspr %0," __stringify(rn) \

22
tools/perf/bench/bench.h
View file

@ -25,19 +25,17 @@
# endif
#endif
extern int bench_numa(int argc, const char **argv, const char *prefix);
extern int bench_sched_messaging(int argc, const char **argv, const char *prefix);
extern int bench_sched_pipe(int argc, const char **argv, const char *prefix);
extern int bench_mem_memcpy(int argc, const char **argv,
const char *prefix __maybe_unused);
extern int bench_mem_memset(int argc, const char **argv, const char *prefix);
extern int bench_futex_hash(int argc, const char **argv, const char *prefix);
extern int bench_futex_wake(int argc, const char **argv, const char *prefix);
extern int bench_futex_wake_parallel(int argc, const char **argv,
const char *prefix);
extern int bench_futex_requeue(int argc, const char **argv, const char *prefix);
int bench_numa(int argc, const char **argv, const char *prefix);
int bench_sched_messaging(int argc, const char **argv, const char *prefix);
int bench_sched_pipe(int argc, const char **argv, const char *prefix);
int bench_mem_memcpy(int argc, const char **argv, const char *prefix);
int bench_mem_memset(int argc, const char **argv, const char *prefix);
int bench_futex_hash(int argc, const char **argv, const char *prefix);
int bench_futex_wake(int argc, const char **argv, const char *prefix);
int bench_futex_wake_parallel(int argc, const char **argv, const char *prefix);
int bench_futex_requeue(int argc, const char **argv, const char *prefix);
/* pi futexes */
extern int bench_futex_lock_pi(int argc, const char **argv, const char *prefix);
int bench_futex_lock_pi(int argc, const char **argv, const char *prefix);
#define BENCH_FORMAT_DEFAULT_STR "default"
#define BENCH_FORMAT_DEFAULT 0

2
tools/perf/bench/mem-memcpy-arch.h
View file

@ -2,7 +2,7 @@
#ifdef HAVE_ARCH_X86_64_SUPPORT
#define MEMCPY_FN(fn, name, desc) \
extern void *fn(void *, const void *, size_t);
void *fn(void *, const void *, size_t);
#include "mem-memcpy-x86-64-asm-def.h"

2
tools/perf/bench/mem-memset-arch.h
View file

@ -2,7 +2,7 @@
#ifdef HAVE_ARCH_X86_64_SUPPORT
#define MEMSET_FN(fn, name, desc) \
extern void *fn(void *, int, size_t);
void *fn(void *, int, size_t);
#include "mem-memset-x86-64-asm-def.h"

2
tools/perf/bench/numa.c
View file

@ -293,7 +293,7 @@ static void bind_to_memnode(int node)
if (node == -1)
return;
BUG_ON(g->p.nr_nodes > (int)sizeof(nodemask));
BUG_ON(g->p.nr_nodes > (int)sizeof(nodemask)*8);
nodemask = 1L << node;
ret = set_mempolicy(MPOL_BIND, &nodemask, sizeof(nodemask)*8);

2
tools/perf/builtin-annotate.c
View file

@ -94,7 +94,7 @@ static int process_sample_event(struct perf_tool *tool,
struct addr_location al;
int ret = 0;
if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
if (machine__resolve(machine, &al, sample) < 0) {
pr_warning("problem processing %d event, skipping it.\n",
event->header.type);
return -1;

2
tools/perf/builtin-diff.c
View file

@ -330,7 +330,7 @@ static int diff__process_sample_event(struct perf_tool *tool __maybe_unused,
struct hists *hists = evsel__hists(evsel);
int ret = -1;
if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
if (machine__resolve(machine, &al, sample) < 0) {
pr_warning("problem processing %d event, skipping it.\n",
event->header.type);
return -1;

69
tools/perf/builtin-help.c
View file

@ -106,12 +106,14 @@ static void exec_woman_emacs(const char *path, const char *page)
if (!check_emacsclient_version()) {
/* This works only with emacsclient version >= 22. */
struct strbuf man_page = STRBUF_INIT;
char *man_page;
if (!path)
path = "emacsclient";
strbuf_addf(&man_page, "(woman \"%s\")", page);
execlp(path, "emacsclient", "-e", man_page.buf, NULL);
if (asprintf(&man_page, "(woman \"%s\")", page) > 0) {
execlp(path, "emacsclient", "-e", man_page, NULL);
free(man_page);
}
warning("failed to exec '%s': %s", path,
strerror_r(errno, sbuf, sizeof(sbuf)));
}
@ -122,7 +124,7 @@ static void exec_man_konqueror(const char *path, const char *page)
const char *display = getenv("DISPLAY");
if (display && *display) {
struct strbuf man_page = STRBUF_INIT;
char *man_page;
const char *filename = "kfmclient";
char sbuf[STRERR_BUFSIZE];
@ -141,8 +143,10 @@ static void exec_man_konqueror(const char *path, const char *page)
filename = file;
} else
path = "kfmclient";
strbuf_addf(&man_page, "man:%s(1)", page);
execlp(path, filename, "newTab", man_page.buf, NULL);
if (asprintf(&man_page, "man:%s(1)", page) > 0) {
execlp(path, filename, "newTab", man_page, NULL);
free(man_page);
}
warning("failed to exec '%s': %s", path,
strerror_r(errno, sbuf, sizeof(sbuf)));
}
@ -161,11 +165,13 @@ static void exec_man_man(const char *path, const char *page)
static void exec_man_cmd(const char *cmd, const char *page)
{
struct strbuf shell_cmd = STRBUF_INIT;
char sbuf[STRERR_BUFSIZE];
char *shell_cmd;
strbuf_addf(&shell_cmd, "%s %s", cmd, page);
execl("/bin/sh", "sh", "-c", shell_cmd.buf, NULL);
if (asprintf(&shell_cmd, "%s %s", cmd, page) > 0) {
execl("/bin/sh", "sh", "-c", shell_cmd, NULL);
free(shell_cmd);
}
warning("failed to exec '%s': %s", cmd,
strerror_r(errno, sbuf, sizeof(sbuf)));
}
@ -299,43 +305,33 @@ static int is_perf_command(const char *s)
is_in_cmdlist(&other_cmds, s);
}
static const char *prepend(const char *prefix, const char *cmd)
{
size_t pre_len = strlen(prefix);
size_t cmd_len = strlen(cmd);
char *p = malloc(pre_len + cmd_len + 1);
memcpy(p, prefix, pre_len);
strcpy(p + pre_len, cmd);
return p;
}
static const char *cmd_to_page(const char *perf_cmd)
{
char *s;
if (!perf_cmd)
return "perf";
else if (!prefixcmp(perf_cmd, "perf"))
return perf_cmd;
else
return prepend("perf-", perf_cmd);
return asprintf(&s, "perf-%s", perf_cmd) < 0 ? NULL : s;
}
static void setup_man_path(void)
{
struct strbuf new_path = STRBUF_INIT;
char *new_path;
const char *old_path = getenv("MANPATH");
/* We should always put ':' after our path. If there is no
* old_path, the ':' at the end will let 'man' to try
* system-wide paths after ours to find the manual page. If
* there is old_path, we need ':' as delimiter. */
strbuf_addstr(&new_path, system_path(PERF_MAN_PATH));
strbuf_addch(&new_path, ':');
if (old_path)
strbuf_addstr(&new_path, old_path);
setenv("MANPATH", new_path.buf, 1);
strbuf_release(&new_path);
if (asprintf(&new_path, "%s:%s", system_path(PERF_MAN_PATH), old_path ?: "") > 0) {
setenv("MANPATH", new_path, 1);
free(new_path);
} else {
error("Unable to setup man path");
}
}
static void exec_viewer(const char *name, const char *page)
@ -380,7 +376,7 @@ static int show_info_page(const char *perf_cmd)
return -1;
}
static int get_html_page_path(struct strbuf *page_path, const char *page)
static int get_html_page_path(char **page_path, const char *page)
{
struct stat st;
const char *html_path = system_path(PERF_HTML_PATH);
@ -392,10 +388,7 @@ static int get_html_page_path(struct strbuf *page_path, const char *page)
return -1;
}
strbuf_init(page_path, 0);
strbuf_addf(page_path, "%s/%s.html", html_path, page);
return 0;
return asprintf(page_path, "%s/%s.html", html_path, page);
}
/*
@ -413,12 +406,12 @@ static void open_html(const char *path)
static int show_html_page(const char *perf_cmd)
{
const char *page = cmd_to_page(perf_cmd);
struct strbuf page_path; /* it leaks but we exec bellow */
char *page_path; /* it leaks but we exec bellow */
if (get_html_page_path(&page_path, page) != 0)
if (get_html_page_path(&page_path, page) < 0)
return -1;
open_html(page_path.buf);
open_html(page_path);
return 0;
}

8
tools/perf/builtin-inject.c
View file

@ -131,8 +131,7 @@ static int copy_bytes(struct perf_inject *inject, int fd, off_t size)
static s64 perf_event__repipe_auxtrace(struct perf_tool *tool,
union perf_event *event,
struct perf_session *session
__maybe_unused)
struct perf_session *session)
{
struct perf_inject *inject = container_of(tool, struct perf_inject,
tool);
@ -417,9 +416,6 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
{
struct addr_location al;
struct thread *thread;
u8 cpumode;
cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
thread = machine__findnew_thread(machine, sample->pid, sample->tid);
if (thread == NULL) {
@ -428,7 +424,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
goto repipe;
}
thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->ip, &al);
thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al);
if (al.map != NULL) {
if (!al.map->dso->hit) {

2
tools/perf/builtin-mem.c
View file

@ -131,7 +131,7 @@ dump_raw_samples(struct perf_tool *tool,
struct addr_location al;
const char *fmt;
if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
if (machine__resolve(machine, &al, sample) < 0) {
fprintf(stderr, "problem processing %d event, skipping it.\n",
event->header.type);
return -1;

3
tools/perf/builtin-report.c
View file

@ -41,6 +41,7 @@
#include <dlfcn.h>
#include <linux/bitmap.h>
#include <linux/stringify.h>
struct report {
struct perf_tool tool;
@ -154,7 +155,7 @@ static int process_sample_event(struct perf_tool *tool,
};
int ret = 0;
if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
if (machine__resolve(machine, &al, sample) < 0) {
pr_debug("problem processing %d event, skipping it.\n",
event->header.type);
return -1;

46
tools/perf/builtin-script.c
View file

@ -405,9 +405,7 @@ static int perf_session__check_output_opt(struct perf_session *session)
return 0;
}
static void print_sample_iregs(union perf_event *event __maybe_unused,
struct perf_sample *sample,
struct thread *thread __maybe_unused,
static void print_sample_iregs(struct perf_sample *sample,
struct perf_event_attr *attr)
{
struct regs_dump *regs = &sample->intr_regs;
@ -476,10 +474,7 @@ mispred_str(struct branch_entry *br)
return br->flags.predicted ? 'P' : 'M';
}
static void print_sample_brstack(union perf_event *event __maybe_unused,
struct perf_sample *sample,
struct thread *thread __maybe_unused,
struct perf_event_attr *attr __maybe_unused)
static void print_sample_brstack(struct perf_sample *sample)
{
struct branch_stack *br = sample->branch_stack;
u64 i;
@ -498,14 +493,11 @@ static void print_sample_brstack(union perf_event *event __maybe_unused,
}
}
static void print_sample_brstacksym(union perf_event *event __maybe_unused,
struct perf_sample *sample,
struct thread *thread __maybe_unused,
struct perf_event_attr *attr __maybe_unused)
static void print_sample_brstacksym(struct perf_sample *sample,
struct thread *thread)
{
struct branch_stack *br = sample->branch_stack;
struct addr_location alf, alt;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
u64 i, from, to;
if (!(br && br->nr))
@ -518,11 +510,11 @@ static void print_sample_brstacksym(union perf_event *event __maybe_unused,
from = br->entries[i].from;
to = br->entries[i].to;
thread__find_addr_map(thread, cpumode, MAP__FUNCTION, from, &alf);
thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, from, &alf);
if (alf.map)
alf.sym = map__find_symbol(alf.map, alf.addr, NULL);
thread__find_addr_map(thread, cpumode, MAP__FUNCTION, to, &alt);
thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, to, &alt);
if (alt.map)
alt.sym = map__find_symbol(alt.map, alt.addr, NULL);
@ -538,8 +530,7 @@ static void print_sample_brstacksym(union perf_event *event __maybe_unused,
}
static void print_sample_addr(union perf_event *event,
struct perf_sample *sample,
static void print_sample_addr(struct perf_sample *sample,
struct thread *thread,
struct perf_event_attr *attr)
{
@ -550,7 +541,7 @@ static void print_sample_addr(union perf_event *event,
if (!sample_addr_correlates_sym(attr))
return;
perf_event__preprocess_sample_addr(event, sample, thread, &al);
thread__resolve(thread, &al, sample);
if (PRINT_FIELD(SYM)) {
printf(" ");
@ -567,8 +558,7 @@ static void print_sample_addr(union perf_event *event,
}
}
static void print_sample_bts(union perf_event *event,
struct perf_sample *sample,
static void print_sample_bts(struct perf_sample *sample,
struct perf_evsel *evsel,
struct thread *thread,
struct addr_location *al)
@ -598,7 +588,7 @@ static void print_sample_bts(union perf_event *event,
((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
!output[attr->type].user_set)) {
printf(" => ");
print_sample_addr(event, sample, thread, attr);
print_sample_addr(sample, thread, attr);
}
if (print_srcline_last)
@ -747,7 +737,7 @@ static size_t data_src__printf(u64 data_src)
return printf("%-*s", maxlen, out);
}
static void process_event(struct perf_script *script, union perf_event *event,
static void process_event(struct perf_script *script,
struct perf_sample *sample, struct perf_evsel *evsel,
struct addr_location *al)
{
@ -776,7 +766,7 @@ static void process_event(struct perf_script *script, union perf_event *event,
print_sample_flags(sample->flags);
if (is_bts_event(attr)) {
print_sample_bts(event, sample, evsel, thread, al);
print_sample_bts(sample, evsel, thread, al);
return;
}
@ -784,7 +774,7 @@ static void process_event(struct perf_script *script, union perf_event *event,
event_format__print(evsel->tp_format, sample->cpu,
sample->raw_data, sample->raw_size);
if (PRINT_FIELD(ADDR))
print_sample_addr(event, sample, thread, attr);
print_sample_addr(sample, thread, attr);
if (PRINT_FIELD(DATA_SRC))
data_src__printf(sample->data_src);
@ -804,12 +794,12 @@ static void process_event(struct perf_script *script, union perf_event *event,
}
if (PRINT_FIELD(IREGS))
print_sample_iregs(event, sample, thread, attr);
print_sample_iregs(sample, attr);
if (PRINT_FIELD(BRSTACK))
print_sample_brstack(event, sample, thread, attr);
print_sample_brstack(sample);
else if (PRINT_FIELD(BRSTACKSYM))
print_sample_brstacksym(event, sample, thread, attr);
print_sample_brstacksym(sample, thread);
if (perf_evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT))
print_sample_bpf_output(sample);
@ -905,7 +895,7 @@ static int process_sample_event(struct perf_tool *tool,
return 0;
}
if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
if (machine__resolve(machine, &al, sample) < 0) {
pr_err("problem processing %d event, skipping it.\n",
event->header.type);
return -1;
@ -920,7 +910,7 @@ static int process_sample_event(struct perf_tool *tool,
if (scripting_ops)
scripting_ops->process_event(event, sample, evsel, &al);
else
process_event(scr, event, sample, evsel, &al);
process_event(scr, sample, evsel, &al);
out_put:
addr_location__put(&al);

2
tools/perf/builtin-timechart.c
View file

@ -489,7 +489,7 @@ static const char *cat_backtrace(union perf_event *event,
if (!chain)
goto exit;
if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
if (machine__resolve(machine, &al, sample) < 0) {
fprintf(stderr, "problem processing %d event, skipping it.\n",
event->header.type);
goto exit;

8
tools/perf/builtin-top.c
View file

@ -67,6 +67,7 @@
#include <sys/utsname.h>
#include <sys/mman.h>
#include <linux/stringify.h>
#include <linux/types.h>
static volatile int done;
@ -728,7 +729,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
top->exact_samples++;
if (perf_event__preprocess_sample(event, machine, &al, sample) < 0)
if (machine__resolve(machine, &al, sample) < 0)
return;
if (!top->kptr_restrict_warned &&
@ -809,7 +810,6 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
struct perf_session *session = top->session;
union perf_event *event;
struct machine *machine;
u8 origin;
int ret;
while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) {
@ -822,12 +822,10 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
evsel = perf_evlist__id2evsel(session->evlist, sample.id);
assert(evsel != NULL);
origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
if (event->header.type == PERF_RECORD_SAMPLE)
++top->samples;
switch (origin) {
switch (sample.cpumode) {
case PERF_RECORD_MISC_USER:
++top->us_samples;
if (top->hide_user_symbols)

9
tools/perf/builtin-trace.c
View file

@ -2256,11 +2256,10 @@ static void print_location(FILE *f, struct perf_sample *sample,
static int trace__pgfault(struct trace *trace,
struct perf_evsel *evsel,
union perf_event *event,
union perf_event *event __maybe_unused,
struct perf_sample *sample)
{
struct thread *thread;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct addr_location al;
char map_type = 'd';
struct thread_trace *ttrace;
@ -2279,7 +2278,7 @@ static int trace__pgfault(struct trace *trace,
if (trace->summary_only)
goto out;
thread__find_addr_location(thread, cpumode, MAP__FUNCTION,
thread__find_addr_location(thread, sample->cpumode, MAP__FUNCTION,
sample->ip, &al);
trace__fprintf_entry_head(trace, thread, 0, sample->time, trace->output);
@ -2292,11 +2291,11 @@ static int trace__pgfault(struct trace *trace,
fprintf(trace->output, "] => ");
thread__find_addr_location(thread, cpumode, MAP__VARIABLE,
thread__find_addr_location(thread, sample->cpumode, MAP__VARIABLE,
sample->addr, &al);
if (!al.map) {
thread__find_addr_location(thread, cpumode,
thread__find_addr_location(thread, sample->cpumode,
MAP__FUNCTION, sample->addr, &al);
if (al.map)

64
tools/perf/builtin.h
View file

@ -7,38 +7,38 @@
extern const char perf_usage_string[];
extern const char perf_more_info_string[];
extern void list_common_cmds_help(void);
extern const char *help_unknown_cmd(const char *cmd);
extern void prune_packed_objects(int);
extern int read_line_with_nul(char *buf, int size, FILE *file);
extern int check_pager_config(const char *cmd);
void list_common_cmds_help(void);
const char *help_unknown_cmd(const char *cmd);
void prune_packed_objects(int);
int read_line_with_nul(char *buf, int size, FILE *file);
int check_pager_config(const char *cmd);
extern int cmd_annotate(int argc, const char **argv, const char *prefix);
extern int cmd_bench(int argc, const char **argv, const char *prefix);
extern int cmd_buildid_cache(int argc, const char **argv, const char *prefix);
extern int cmd_buildid_list(int argc, const char **argv, const char *prefix);
extern int cmd_config(int argc, const char **argv, const char *prefix);
extern int cmd_diff(int argc, const char **argv, const char *prefix);
extern int cmd_evlist(int argc, const char **argv, const char *prefix);
extern int cmd_help(int argc, const char **argv, const char *prefix);
extern int cmd_sched(int argc, const char **argv, const char *prefix);
extern int cmd_list(int argc, const char **argv, const char *prefix);
extern int cmd_record(int argc, const char **argv, const char *prefix);
extern int cmd_report(int argc, const char **argv, const char *prefix);
extern int cmd_stat(int argc, const char **argv, const char *prefix);
extern int cmd_timechart(int argc, const char **argv, const char *prefix);
extern int cmd_top(int argc, const char **argv, const char *prefix);
extern int cmd_script(int argc, const char **argv, const char *prefix);
extern int cmd_version(int argc, const char **argv, const char *prefix);
extern int cmd_probe(int argc, const char **argv, const char *prefix);
extern int cmd_kmem(int argc, const char **argv, const char *prefix);
extern int cmd_lock(int argc, const char **argv, const char *prefix);
extern int cmd_kvm(int argc, const char **argv, const char *prefix);
extern int cmd_test(int argc, const char **argv, const char *prefix);
extern int cmd_trace(int argc, const char **argv, const char *prefix);
extern int cmd_inject(int argc, const char **argv, const char *prefix);
extern int cmd_mem(int argc, const char **argv, const char *prefix);
extern int cmd_data(int argc, const char **argv, const char *prefix);
int cmd_annotate(int argc, const char **argv, const char *prefix);
int cmd_bench(int argc, const char **argv, const char *prefix);
int cmd_buildid_cache(int argc, const char **argv, const char *prefix);
int cmd_buildid_list(int argc, const char **argv, const char *prefix);
int cmd_config(int argc, const char **argv, const char *prefix);
int cmd_diff(int argc, const char **argv, const char *prefix);
int cmd_evlist(int argc, const char **argv, const char *prefix);
int cmd_help(int argc, const char **argv, const char *prefix);
int cmd_sched(int argc, const char **argv, const char *prefix);
int cmd_list(int argc, const char **argv, const char *prefix);
int cmd_record(int argc, const char **argv, const char *prefix);
int cmd_report(int argc, const char **argv, const char *prefix);
int cmd_stat(int argc, const char **argv, const char *prefix);
int cmd_timechart(int argc, const char **argv, const char *prefix);
int cmd_top(int argc, const char **argv, const char *prefix);
int cmd_script(int argc, const char **argv, const char *prefix);
int cmd_version(int argc, const char **argv, const char *prefix);
int cmd_probe(int argc, const char **argv, const char *prefix);
int cmd_kmem(int argc, const char **argv, const char *prefix);
int cmd_lock(int argc, const char **argv, const char *prefix);
int cmd_kvm(int argc, const char **argv, const char *prefix);
int cmd_test(int argc, const char **argv, const char *prefix);
int cmd_trace(int argc, const char **argv, const char *prefix);
int cmd_inject(int argc, const char **argv, const char *prefix);
int cmd_mem(int argc, const char **argv, const char *prefix);
int cmd_data(int argc, const char **argv, const char *prefix);
extern int find_scripts(char **scripts_array, char **scripts_path_array);
int find_scripts(char **scripts_array, char **scripts_path_array);
#endif

2
tools/perf/config/Makefile
View file

@ -109,7 +109,7 @@ ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
endif
include $(src-perf)/config/utilities.mak
include $(srctree)/tools/scripts/utilities.mak
ifeq ($(call get-executable,$(FLEX)),)
dummy := $(error Error: $(FLEX) is missing on this system, please install it)

5
tools/perf/tests/code-reading.c
View file

@ -293,7 +293,6 @@ static int process_sample_event(struct machine *machine,
{
struct perf_sample sample;
struct thread *thread;
u8 cpumode;
int ret;
if (perf_evlist__parse_sample(evlist, event, &sample)) {
@ -307,9 +306,7 @@ static int process_sample_event(struct machine *machine,
return -1;
}
cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
ret = read_object_code(sample.ip, READLEN, cpumode, thread, state);
ret = read_object_code(sample.ip, READLEN, sample.cpumode, thread, state);
thread__put(thread);
return ret;
}

4
tools/perf/tests/dwarf-unwind.c
View file

@ -20,10 +20,10 @@
static int mmap_handler(struct perf_tool *tool __maybe_unused,
union perf_event *event,
struct perf_sample *sample __maybe_unused,
struct perf_sample *sample,
struct machine *machine)
{
return machine__process_mmap2_event(machine, event, NULL);
return machine__process_mmap2_event(machine, event, sample);
}
static int init_live_machine(struct machine *machine)

6
tools/perf/tests/hists_common.c
View file

@ -100,9 +100,11 @@ struct machine *setup_fake_machine(struct machines *machines)
}
for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) {
struct perf_sample sample = {
.cpumode = PERF_RECORD_MISC_USER,
};
union perf_event fake_mmap_event = {
.mmap = {
.header = { .misc = PERF_RECORD_MISC_USER, },
.pid = fake_mmap_info[i].pid,
.tid = fake_mmap_info[i].pid,
.start = fake_mmap_info[i].start,
@ -114,7 +116,7 @@ struct machine *setup_fake_machine(struct machines *machines)
strcpy(fake_mmap_event.mmap.filename,
fake_mmap_info[i].filename);
machine__process_mmap_event(machine, &fake_mmap_event, NULL);
machine__process_mmap_event(machine, &fake_mmap_event, &sample);
}
for (i = 0; i < ARRAY_SIZE(fake_symbols); i++) {

9
tools/perf/tests/hists_cumulate.c
View file

@ -81,11 +81,6 @@ static int add_hist_entries(struct hists *hists, struct machine *machine)
size_t i;
for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
const union perf_event event = {
.header = {
.misc = PERF_RECORD_MISC_USER,
},
};
struct hist_entry_iter iter = {
.evsel = evsel,
.sample = &sample,
@ -97,13 +92,13 @@ static int add_hist_entries(struct hists *hists, struct machine *machine)
else
iter.ops = &hist_iter_normal;
sample.cpumode = PERF_RECORD_MISC_USER;
sample.pid = fake_samples[i].pid;
sample.tid = fake_samples[i].pid;
sample.ip = fake_samples[i].ip;
sample.callchain = (struct ip_callchain *)fake_callchains[i];
if (perf_event__preprocess_sample(&event, machine, &al,
&sample) < 0)
if (machine__resolve(machine, &al, &sample) < 0)
goto out;
if (hist_entry_iter__add(&iter, &al, PERF_MAX_STACK_DEPTH,

9
tools/perf/tests/hists_filter.c
View file

@ -58,11 +58,6 @@ static int add_hist_entries(struct perf_evlist *evlist,
*/
evlist__for_each(evlist, evsel) {
for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
const union perf_event event = {
.header = {
.misc = PERF_RECORD_MISC_USER,
},
};
struct hist_entry_iter iter = {
.evsel = evsel,
.sample = &sample,
@ -76,12 +71,12 @@ static int add_hist_entries(struct perf_evlist *evlist,
hists->dso_filter = NULL;
hists->symbol_filter_str = NULL;
sample.cpumode = PERF_RECORD_MISC_USER;
sample.pid = fake_samples[i].pid;
sample.tid = fake_samples[i].pid;
sample.ip = fake_samples[i].ip;
if (perf_event__preprocess_sample(&event, machine, &al,
&sample) < 0)
if (machine__resolve(machine, &al, &sample) < 0)
goto out;
al.socket = fake_samples[i].socket;

20
tools/perf/tests/hists_link.c
View file

@ -76,17 +76,12 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
struct hists *hists = evsel__hists(evsel);
for (k = 0; k < ARRAY_SIZE(fake_common_samples); k++) {
const union perf_event event = {
.header = {
.misc = PERF_RECORD_MISC_USER,
},
};
sample.cpumode = PERF_RECORD_MISC_USER;
sample.pid = fake_common_samples[k].pid;
sample.tid = fake_common_samples[k].pid;
sample.ip = fake_common_samples[k].ip;
if (perf_event__preprocess_sample(&event, machine, &al,
&sample) < 0)
if (machine__resolve(machine, &al, &sample) < 0)
goto out;
he = __hists__add_entry(hists, &al, NULL,
@ -102,17 +97,10 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
}
for (k = 0; k < ARRAY_SIZE(fake_samples[i]); k++) {
const union perf_event event = {
.header = {
.misc = PERF_RECORD_MISC_USER,
},
};
sample.pid = fake_samples[i][k].pid;
sample.tid = fake_samples[i][k].pid;
sample.ip = fake_samples[i][k].ip;
if (perf_event__preprocess_sample(&event, machine, &al,
&sample) < 0)
if (machine__resolve(machine, &al, &sample) < 0)
goto out;
he = __hists__add_entry(hists, &al, NULL,

9
tools/perf/tests/hists_output.c
View file

@ -51,11 +51,6 @@ static int add_hist_entries(struct hists *hists, struct machine *machine)
size_t i;
for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
const union perf_event event = {
.header = {
.misc = PERF_RECORD_MISC_USER,
},
};
struct hist_entry_iter iter = {
.evsel = evsel,
.sample = &sample,
@ -63,13 +58,13 @@ static int add_hist_entries(struct hists *hists, struct machine *machine)
.hide_unresolved = false,
};
sample.cpumode = PERF_RECORD_MISC_USER;
sample.cpu = fake_samples[i].cpu;
sample.pid = fake_samples[i].pid;
sample.tid = fake_samples[i].pid;
sample.ip = fake_samples[i].ip;
if (perf_event__preprocess_sample(&event, machine, &al,
&sample) < 0)
if (machine__resolve(machine, &al, &sample) < 0)
goto out;
if (hist_entry_iter__add(&iter, &al, PERF_MAX_STACK_DEPTH,

2
tools/perf/ui/gtk/hists.c
View file

@ -55,7 +55,7 @@ static u64 he_get_acc_##_field(struct hist_entry *he) \
return he->stat_acc->_field; \
} \
\
static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused, \
static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt, \
struct perf_hpp *hpp, \
struct hist_entry *he) \
{ \

1
tools/perf/util/Build
View file

@ -1,4 +1,3 @@
libperf-y += abspath.o
libperf-y += alias.o
libperf-y += annotate.o
libperf-y += build-id.o

37
tools/perf/util/abspath.c
View file

@ -1,37 +0,0 @@
#include "cache.h"
static const char *get_pwd_cwd(void)
{
static char cwd[PATH_MAX + 1];
char *pwd;
struct stat cwd_stat, pwd_stat;
if (getcwd(cwd, PATH_MAX) == NULL)
return NULL;
pwd = getenv("PWD");
if (pwd && strcmp(pwd, cwd)) {
stat(cwd, &cwd_stat);
if (!stat(pwd, &pwd_stat) &&
pwd_stat.st_dev == cwd_stat.st_dev &&
pwd_stat.st_ino == cwd_stat.st_ino) {
strlcpy(cwd, pwd, PATH_MAX);
}
}
return cwd;
}
const char *make_nonrelative_path(const char *path)
{
static char buf[PATH_MAX + 1];
if (is_absolute_path(path)) {
if (strlcpy(buf, path, PATH_MAX) >= PATH_MAX)
die("Too long path: %.*s", 60, path);
} else {
const char *cwd = get_pwd_cwd();
if (!cwd)
die("Cannot determine the current working directory");
if (snprintf(buf, PATH_MAX, "%s/%s", cwd, path) >= PATH_MAX)
die("Too long path: %.*s", 60, path);
}
return buf;
}

2
tools/perf/util/annotate.h
View file

@ -158,7 +158,7 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize);
int hist_entry__annotate(struct hist_entry *he, size_t privsize);
int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym);
int symbol__annotate_init(struct map *map, struct symbol *sym);
int symbol__annotate_printf(struct symbol *sym, struct map *map,
struct perf_evsel *evsel, bool full_paths,
int min_pcnt, int max_lines, int context);

2
tools/perf/util/auxtrace.h
View file

@ -517,7 +517,7 @@ static inline void auxtrace__free(struct perf_session *session)
static inline struct auxtrace_record *
auxtrace_record__init(struct perf_evlist *evlist __maybe_unused,
int *err __maybe_unused)
int *err)
{
*err = 0;
return NULL;

3
tools/perf/util/build-id.c
View file

@ -28,7 +28,6 @@ int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
struct machine *machine)
{
struct addr_location al;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread = machine__findnew_thread(machine, sample->pid,
sample->tid);
@ -38,7 +37,7 @@ int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
return -1;
}
thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->ip, &al);
thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al);
if (al.map != NULL)
al.map->dso->hit = 1;

24
tools/perf/util/cache.h
View file

@ -26,14 +26,14 @@
extern const char *config_exclusive_filename;
typedef int (*config_fn_t)(const char *, const char *, void *);
extern int perf_default_config(const char *, const char *, void *);
extern int perf_config(config_fn_t fn, void *);
extern int perf_config_int(const char *, const char *);
extern u64 perf_config_u64(const char *, const char *);
extern int perf_config_bool(const char *, const char *);
extern int config_error_nonbool(const char *);
extern const char *perf_config_dirname(const char *, const char *);
extern const char *perf_etc_perfconfig(void);
int perf_default_config(const char *, const char *, void *);
int perf_config(config_fn_t fn, void *);
int perf_config_int(const char *, const char *);
u64 perf_config_u64(const char *, const char *);
int perf_config_bool(const char *, const char *);
int config_error_nonbool(const char *);
const char *perf_config_dirname(const char *, const char *);
const char *perf_etc_perfconfig(void);
char *alias_lookup(const char *alias);
int split_cmdline(char *cmdline, const char ***argv);
@ -64,13 +64,9 @@ static inline int is_absolute_path(const char *path)
return path[0] == '/';
}
const char *make_nonrelative_path(const char *path);
char *strip_path_suffix(const char *path, const char *suffix);
extern char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
extern char *perf_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
extern char *perf_pathdup(const char *fmt, ...)
__attribute__((format (printf, 1, 2)));
char *mkpath(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
char *perf_path(const char *fmt, ...) __attribute__((format (printf, 1, 2)));
#endif /* __PERF_CACHE_H */

4
tools/perf/util/callchain.h
View file

@ -220,7 +220,7 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *
bool hide_unresolved);
extern const char record_callchain_help[];
extern int parse_callchain_record(const char *arg, struct callchain_param *param);
int parse_callchain_record(const char *arg, struct callchain_param *param);
int parse_callchain_record_opt(const char *arg, struct callchain_param *param);
int parse_callchain_report_opt(const char *arg);
int parse_callchain_top_opt(const char *arg);
@ -236,7 +236,7 @@ static inline void callchain_cursor_snapshot(struct callchain_cursor *dest,
}
#ifdef HAVE_SKIP_CALLCHAIN_IDX
extern int arch_skip_callchain_idx(struct thread *thread, struct ip_callchain *chain);
int arch_skip_callchain_idx(struct thread *thread, struct ip_callchain *chain);
#else
static inline int arch_skip_callchain_idx(struct thread *thread __maybe_unused,
struct ip_callchain *chain __maybe_unused)

4
tools/perf/util/cgroup.h
View file

@ -13,7 +13,7 @@ struct cgroup_sel {
extern int nr_cgroups; /* number of explicit cgroups defined */
extern void close_cgroup(struct cgroup_sel *cgrp);
extern int parse_cgroups(const struct option *opt, const char *str, int unset);
void close_cgroup(struct cgroup_sel *cgrp);
int parse_cgroups(const struct option *opt, const char *str, int unset);
#endif /* __CGROUP_H__ */

2
tools/perf/util/cloexec.h
View file

@ -5,7 +5,7 @@ unsigned long perf_event_open_cloexec_flag(void);
#ifdef __GLIBC_PREREQ
#if !__GLIBC_PREREQ(2, 6) && !defined(__UCLIBC__)
extern int sched_getcpu(void) __THROW;
int sched_getcpu(void) __THROW;
#endif
#endif

2
tools/perf/util/data-convert-bt.c
View file

@ -632,7 +632,7 @@ static bool is_flush_needed(struct ctf_stream *cs)
}
static int process_sample_event(struct perf_tool *tool,
union perf_event *_event __maybe_unused,
union perf_event *_event,
struct perf_sample *sample,
struct perf_evsel *evsel,
struct machine *machine __maybe_unused)

2
tools/perf/util/db-export.c
View file

@ -333,7 +333,7 @@ int db_export__sample(struct db_export *dbe, union perf_event *event,
sample_addr_correlates_sym(&evsel->attr)) {
struct addr_location addr_al;
perf_event__preprocess_sample_addr(event, sample, thread, &addr_al);
thread__resolve(thread, &addr_al, sample);
err = db_ids_from_al(dbe, &addr_al, &es.addr_dso_db_id,
&es.addr_sym_db_id, &es.addr_offset);
if (err)

3
tools/perf/util/dso.h
View file

@ -162,6 +162,7 @@ struct dso {
u8 loaded;
u8 rel;
u8 build_id[BUILD_ID_SIZE];
u64 text_offset;
const char *short_name;
const char *long_name;
u16 long_name_len;
@ -301,7 +302,7 @@ int __kmod_path__parse(struct kmod_path *m, const char *path,
* TODO
*/
int dso__data_get_fd(struct dso *dso, struct machine *machine);
void dso__data_put_fd(struct dso *dso __maybe_unused);
void dso__data_put_fd(struct dso *dso);
void dso__data_close(struct dso *dso);
off_t dso__data_size(struct dso *dso, struct machine *machine);

10
tools/perf/util/dwarf-aux.c
View file

@ -915,7 +915,7 @@ int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf)
tmp = "*";
else if (tag == DW_TAG_subroutine_type) {
/* Function pointer */
strbuf_addf(buf, "(function_type)");
strbuf_add(buf, "(function_type)", 15);
return 0;
} else {
if (!dwarf_diename(&type))
@ -932,7 +932,7 @@ int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf)
}
ret = die_get_typename(&type, buf);
if (ret == 0)
strbuf_addf(buf, "%s", tmp);
strbuf_addstr(buf, tmp);
return ret;
}
@ -951,7 +951,7 @@ int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf)
ret = die_get_typename(vr_die, buf);
if (ret < 0) {
pr_debug("Failed to get type, make it unknown.\n");
strbuf_addf(buf, "(unknown_type)");
strbuf_add(buf, " (unknown_type)", 14);
}
strbuf_addf(buf, "\t%s", dwarf_diename(vr_die));
@ -1013,7 +1013,7 @@ static int die_get_var_innermost_scope(Dwarf_Die *sp_die, Dwarf_Die *vr_die,
}
if (!first)
strbuf_addf(buf, "]>");
strbuf_add(buf, "]>", 2);
out:
free(scopes);
@ -1076,7 +1076,7 @@ int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf)
}
if (!first)
strbuf_addf(buf, "]>");
strbuf_add(buf, "]>", 2);
return ret;
}

72
tools/perf/util/dwarf-aux.h
View file

@ -25,48 +25,48 @@
#include <elfutils/version.h>
/* Find the realpath of the target file */
extern const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname);
const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname);
/* Get DW_AT_comp_dir (should be NULL with older gcc) */
extern const char *cu_get_comp_dir(Dwarf_Die *cu_die);
const char *cu_get_comp_dir(Dwarf_Die *cu_die);
/* Get a line number and file name for given address */
extern int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
const char **fname, int *lineno);
int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
const char **fname, int *lineno);
/* Walk on funcitons at given address */
extern int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
int (*callback)(Dwarf_Die *, void *), void *data);
int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
int (*callback)(Dwarf_Die *, void *), void *data);
/* Ensure that this DIE is a subprogram and definition (not declaration) */
extern bool die_is_func_def(Dwarf_Die *dw_die);
bool die_is_func_def(Dwarf_Die *dw_die);
/* Ensure that this DIE is an instance of a subprogram */
extern bool die_is_func_instance(Dwarf_Die *dw_die);
bool die_is_func_instance(Dwarf_Die *dw_die);
/* Compare diename and tname */
extern bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
/* Matching diename with glob pattern */
extern bool die_match_name(Dwarf_Die *dw_die, const char *glob);
bool die_match_name(Dwarf_Die *dw_die, const char *glob);
/* Get callsite line number of inline-function instance */
extern int die_get_call_lineno(Dwarf_Die *in_die);
int die_get_call_lineno(Dwarf_Die *in_die);
/* Get callsite file name of inlined function instance */
extern const char *die_get_call_file(Dwarf_Die *in_die);
const char *die_get_call_file(Dwarf_Die *in_die);
/* Get type die */
extern Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
/* Get a type die, but skip qualifiers and typedef */
extern Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
/* Check whether the DIE is signed or not */
extern bool die_is_signed_type(Dwarf_Die *tp_die);
bool die_is_signed_type(Dwarf_Die *tp_die);
/* Get data_member_location offset */
extern int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs);
int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs);
/* Return values for die_find_child() callbacks */
enum {
@ -77,29 +77,29 @@ enum {
};
/* Search child DIEs */
extern Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
int (*callback)(Dwarf_Die *, void *),
void *data, Dwarf_Die *die_mem);
Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
int (*callback)(Dwarf_Die *, void *),
void *data, Dwarf_Die *die_mem);
/* Search a non-inlined function including given address */
extern Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
/* Search a non-inlined function with tail call at given address */
Dwarf_Die *die_find_tailfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
/* Search the top inlined function including given address */
extern Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
Dwarf_Die *die_find_top_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
/* Search the deepest inlined function including given address */
extern Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
/* Walk on the instances of given DIE */
extern int die_walk_instances(Dwarf_Die *in_die,
int (*callback)(Dwarf_Die *, void *), void *data);
int die_walk_instances(Dwarf_Die *in_die,
int (*callback)(Dwarf_Die *, void *), void *data);
/* Walker on lines (Note: line number will not be sorted) */
typedef int (* line_walk_callback_t) (const char *fname, int lineno,
@ -109,22 +109,20 @@ typedef int (* line_walk_callback_t) (const char *fname, int lineno,
* Walk on lines inside given DIE. If the DIE is a subprogram, walk only on
* the lines inside the subprogram, otherwise the DIE must be a CU DIE.
*/
extern int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback,
void *data);
int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data);
/* Find a variable called 'name' at given address */
extern Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
Dwarf_Addr addr, Dwarf_Die *die_mem);
Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
Dwarf_Addr addr, Dwarf_Die *die_mem);
/* Find a member called 'name' */
extern Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
Dwarf_Die *die_mem);
Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
Dwarf_Die *die_mem);
/* Get the name of given variable DIE */
extern int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf);
int die_get_typename(Dwarf_Die *vr_die, struct strbuf *buf);
/* Get the name and type of given variable DIE, stored as "type\tname" */
extern int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf);
extern int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die,
struct strbuf *buf);
int die_get_varname(Dwarf_Die *vr_die, struct strbuf *buf);
int die_get_var_range(Dwarf_Die *sp_die, Dwarf_Die *vr_die, struct strbuf *buf);
#endif

23
tools/perf/util/event.c
View file

@ -1295,12 +1295,9 @@ void thread__find_addr_location(struct thread *thread,
* Callers need to drop the reference to al->thread, obtained in
* machine__findnew_thread()
*/
int perf_event__preprocess_sample(const union perf_event *event,
struct machine *machine,
struct addr_location *al,
struct perf_sample *sample)
int machine__resolve(struct machine *machine, struct addr_location *al,
struct perf_sample *sample)
{
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread = machine__findnew_thread(machine, sample->pid,
sample->tid);
@ -1315,11 +1312,11 @@ int perf_event__preprocess_sample(const union perf_event *event,
* events, but for older perf.data files there was no such thing, so do
* it now.
*/
if (cpumode == PERF_RECORD_MISC_KERNEL &&
if (sample->cpumode == PERF_RECORD_MISC_KERNEL &&
machine__kernel_map(machine) == NULL)
machine__create_kernel_maps(machine);
thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->ip, al);
thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, al);
dump_printf(" ...... dso: %s\n",
al->map ? al->map->dso->long_name :
al->level == 'H' ? "[hypervisor]" : "<not found>");
@ -1395,16 +1392,12 @@ bool sample_addr_correlates_sym(struct perf_event_attr *attr)
return false;
}
void perf_event__preprocess_sample_addr(union perf_event *event,
struct perf_sample *sample,
struct thread *thread,
struct addr_location *al)
void thread__resolve(struct thread *thread, struct addr_location *al,
struct perf_sample *sample)
{
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
thread__find_addr_map(thread, cpumode, MAP__FUNCTION, sample->addr, al);
thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->addr, al);
if (!al->map)
thread__find_addr_map(thread, cpumode, MAP__VARIABLE,
thread__find_addr_map(thread, sample->cpumode, MAP__VARIABLE,
sample->addr, al);
al->cpu = sample->cpu;

13
tools/perf/util/event.h
View file

@ -192,6 +192,7 @@ struct perf_sample {
u64 data_src;
u32 flags;
u16 insn_len;
u8 cpumode;
void *raw_data;
struct ip_callchain *callchain;
struct branch_stack *branch_stack;
@ -597,10 +598,8 @@ int perf_event__process(struct perf_tool *tool,
struct addr_location;
int perf_event__preprocess_sample(const union perf_event *event,
struct machine *machine,
struct addr_location *al,
struct perf_sample *sample);
int machine__resolve(struct machine *machine, struct addr_location *al,
struct perf_sample *sample);
void addr_location__put(struct addr_location *al);
@ -608,10 +607,8 @@ struct thread;
bool is_bts_event(struct perf_event_attr *attr);
bool sample_addr_correlates_sym(struct perf_event_attr *attr);
void perf_event__preprocess_sample_addr(union perf_event *event,
struct perf_sample *sample,
struct thread *thread,
struct addr_location *al);
void thread__resolve(struct thread *thread, struct addr_location *al,
struct perf_sample *sample);
const char *perf_event__name(unsigned int id);

1
tools/perf/util/evsel.c
View file

@ -1643,6 +1643,7 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
data->stream_id = data->id = data->time = -1ULL;
data->period = evsel->attr.sample_period;
data->weight = 0;
data->cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
if (event->header.type != PERF_RECORD_SAMPLE) {
if (!evsel->attr.sample_id_all)

8
tools/perf/util/genelf.h
View file

@ -2,12 +2,10 @@
#define __GENELF_H__
/* genelf.c */
extern int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
const void *code, int csize,
void *debug, int nr_debug_entries);
int jit_write_elf(int fd, uint64_t code_addr, const char *sym,
const void *code, int csize, void *debug, int nr_debug_entries);
/* genelf_debug.c */
extern int jit_add_debug_info(Elf *e, uint64_t code_addr,
void *debug, int nr_debug_entries);
int jit_add_debug_info(Elf *e, uint64_t code_addr, void *debug, int nr_debug_entries);
#if defined(__arm__)
#define GEN_ELF_ARCH EM_ARM

5
tools/perf/util/header.c
View file

@ -1872,11 +1872,6 @@ static int process_cpu_topology(struct perf_file_section *section,
if (ph->needs_swap)
nr = bswap_32(nr);
if (nr > (u32)cpu_nr) {
pr_debug("core_id number is too big."
"You may need to upgrade the perf tool.\n");
goto free_cpu;
}
ph->env.cpu[i].core_id = nr;
ret = readn(fd, &nr, sizeof(nr));

2
tools/perf/util/header.h
View file

@ -121,7 +121,7 @@ int perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
perf_event__handler_t process);
int perf_event__process_attr(struct perf_tool *tool, union perf_event *event,
struct perf_evlist **pevlist);
int perf_event__process_event_update(struct perf_tool *tool __maybe_unused,
int perf_event__process_event_update(struct perf_tool *tool,
union perf_event *event,
struct perf_evlist **pevlist);
size_t perf_event__fprintf_event_update(union perf_event *event, FILE *fp);

2
tools/perf/util/hist.c
View file

@ -670,7 +670,7 @@ iter_prepare_branch_entry(struct hist_entry_iter *iter, struct addr_location *al
}
static int
iter_add_single_branch_entry(struct hist_entry_iter *iter __maybe_unused,
iter_add_single_branch_entry(struct hist_entry_iter *iter,
struct addr_location *al __maybe_unused)
{
/* to avoid calling callback function */

3
tools/perf/util/hist.h
View file

@ -433,8 +433,7 @@ void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
struct perf_sample *sample, bool nonany_branch_mode);
struct option;
int parse_filter_percentage(const struct option *opt __maybe_unused,
const char *arg, int unset __maybe_unused);
int parse_filter_percentage(const struct option *opt, const char *arg, int unset);
int perf_hist_config(const char *var, const char *value);
void perf_hpp_list__init(struct perf_hpp_list *list);

2
tools/perf/util/intel-bts.c
View file

@ -678,7 +678,7 @@ static int intel_bts_process_auxtrace_event(struct perf_session *session,
return 0;
}
static int intel_bts_flush(struct perf_session *session __maybe_unused,
static int intel_bts_flush(struct perf_session *session,
struct perf_tool *tool __maybe_unused)
{
struct intel_bts *bts = container_of(session->auxtrace, struct intel_bts,

10
tools/perf/util/jit.h
View file

@ -3,13 +3,9 @@
#include <data.h>
extern int jit_process(struct perf_session *session,
struct perf_data_file *output,
struct machine *machine,
char *filename,
pid_t pid,
u64 *nbytes);
int jit_process(struct perf_session *session, struct perf_data_file *output,
struct machine *machine, char *filename, pid_t pid, u64 *nbytes);
extern int jit_inject_record(const char *filename);
int jit_inject_record(const char *filename);
#endif /* __JIT_H__ */

24
tools/perf/util/llvm-utils.c
View file

@ -3,11 +3,11 @@
* Copyright (C) 2015, Huawei Inc.
*/
#include <limits.h>
#include <stdio.h>
#include "util.h"
#include <stdlib.h>
#include "debug.h"
#include "llvm-utils.h"
#include "cache.h"
#define CLANG_BPF_CMD_DEFAULT_TEMPLATE \
"$CLANG_EXEC -D__KERNEL__ -D__NR_CPUS__=$NR_CPUS "\
@ -98,11 +98,12 @@ read_from_pipe(const char *cmd, void **p_buf, size_t *p_read_sz)
void *buf = NULL;
FILE *file = NULL;
size_t read_sz = 0, buf_sz = 0;
char serr[STRERR_BUFSIZE];
file = popen(cmd, "r");
if (!file) {
pr_err("ERROR: unable to popen cmd: %s\n",
strerror(errno));
strerror_r(errno, serr, sizeof(serr)));
return -EINVAL;
}
@ -136,7 +137,7 @@ read_from_pipe(const char *cmd, void **p_buf, size_t *p_read_sz)
if (ferror(file)) {
pr_err("ERROR: error occurred when reading from pipe: %s\n",
strerror(errno));
strerror_r(errno, serr, sizeof(serr)));
err = -EIO;
goto errout;
}
@ -334,10 +335,18 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
unsigned int kernel_version;
char linux_version_code_str[64];
const char *clang_opt = llvm_param.clang_opt;
char clang_path[PATH_MAX], nr_cpus_avail_str[64];
char clang_path[PATH_MAX], abspath[PATH_MAX], nr_cpus_avail_str[64];
char serr[STRERR_BUFSIZE];
char *kbuild_dir = NULL, *kbuild_include_opts = NULL;
const char *template = llvm_param.clang_bpf_cmd_template;
if (path[0] != '-' && realpath(path, abspath) == NULL) {
err = errno;
pr_err("ERROR: problems with path %s: %s\n",
path, strerror_r(err, serr, sizeof(serr)));
return -err;
}
if (!template)
template = CLANG_BPF_CMD_DEFAULT_TEMPLATE;
@ -362,7 +371,7 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
if (nr_cpus_avail <= 0) {
pr_err(
"WARNING:\tunable to get available CPUs in this system: %s\n"
" \tUse 128 instead.\n", strerror(errno));
" \tUse 128 instead.\n", strerror_r(errno, serr, sizeof(serr)));
nr_cpus_avail = 128;
}
snprintf(nr_cpus_avail_str, sizeof(nr_cpus_avail_str), "%d",
@ -387,8 +396,7 @@ int llvm__compile_bpf(const char *path, void **p_obj_buf,
* stdin to be source file (testing).
*/
force_set_env("CLANG_SOURCE",
(path[0] == '-') ? path :
make_nonrelative_path(path));
(path[0] == '-') ? path : abspath);
pr_debug("llvm compiling command template: %s\n", template);
err = read_from_pipe(template, &obj_buf, &obj_buf_sz);

7
tools/perf/util/llvm-utils.h
View file

@ -39,11 +39,10 @@ struct llvm_param {
};
extern struct llvm_param llvm_param;
extern int perf_llvm_config(const char *var, const char *value);
int perf_llvm_config(const char *var, const char *value);
extern int llvm__compile_bpf(const char *path, void **p_obj_buf,
size_t *p_obj_buf_sz);
int llvm__compile_bpf(const char *path, void **p_obj_buf, size_t *p_obj_buf_sz);
/* This function is for test__llvm() use only */
extern int llvm__search_clang(void);
int llvm__search_clang(void);
#endif

14
tools/perf/util/machine.c
View file

@ -1301,9 +1301,8 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
int machine__process_mmap2_event(struct machine *machine,
union perf_event *event,
struct perf_sample *sample __maybe_unused)
struct perf_sample *sample)
{
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread;
struct map *map;
enum map_type type;
@ -1312,8 +1311,8 @@ int machine__process_mmap2_event(struct machine *machine,
if (dump_trace)
perf_event__fprintf_mmap2(event, stdout);
if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
cpumode == PERF_RECORD_MISC_KERNEL) {
if (sample->cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
sample->cpumode == PERF_RECORD_MISC_KERNEL) {
ret = machine__process_kernel_mmap_event(machine, event);
if (ret < 0)
goto out_problem;
@ -1355,9 +1354,8 @@ int machine__process_mmap2_event(struct machine *machine,
}
int machine__process_mmap_event(struct machine *machine, union perf_event *event,
struct perf_sample *sample __maybe_unused)
struct perf_sample *sample)
{
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct thread *thread;
struct map *map;
enum map_type type;
@ -1366,8 +1364,8 @@ int machine__process_mmap_event(struct machine *machine, union perf_event *event
if (dump_trace)
perf_event__fprintf_mmap(event, stdout);
if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
cpumode == PERF_RECORD_MISC_KERNEL) {
if (sample->cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
sample->cpumode == PERF_RECORD_MISC_KERNEL) {
ret = machine__process_kernel_mmap_event(machine, event);
if (ret < 0)
goto out_problem;

2
tools/perf/util/machine.h
View file

@ -94,7 +94,7 @@ int machine__process_aux_event(struct machine *machine,
union perf_event *event);
int machine__process_itrace_start_event(struct machine *machine,
union perf_event *event);
int machine__process_switch_event(struct machine *machine __maybe_unused,
int machine__process_switch_event(struct machine *machine,
union perf_event *event);
int machine__process_mmap_event(struct machine *machine, union perf_event *event,
struct perf_sample *sample);

21
tools/perf/util/parse-events.h
View file

@ -22,19 +22,18 @@ struct tracepoint_path {
struct tracepoint_path *next;
};
extern struct tracepoint_path *tracepoint_id_to_path(u64 config);
extern struct tracepoint_path *tracepoint_name_to_path(const char *name);
extern bool have_tracepoints(struct list_head *evlist);
struct tracepoint_path *tracepoint_id_to_path(u64 config);
struct tracepoint_path *tracepoint_name_to_path(const char *name);
bool have_tracepoints(struct list_head *evlist);
const char *event_type(int type);
extern int parse_events_option(const struct option *opt, const char *str,
int unset);
extern int parse_events(struct perf_evlist *evlist, const char *str,
struct parse_events_error *error);
extern int parse_events_terms(struct list_head *terms, const char *str);
extern int parse_filter(const struct option *opt, const char *str, int unset);
extern int exclude_perf(const struct option *opt, const char *arg, int unset);
int parse_events_option(const struct option *opt, const char *str, int unset);
int parse_events(struct perf_evlist *evlist, const char *str,
struct parse_events_error *error);
int parse_events_terms(struct list_head *terms, const char *str);
int parse_filter(const struct option *opt, const char *str, int unset);
int exclude_perf(const struct option *opt, const char *arg, int unset);
#define EVENTS_HELP_MAX (128*1024)
@ -183,7 +182,7 @@ void print_symbol_events(const char *event_glob, unsigned type,
void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
bool name_only);
int print_hwcache_events(const char *event_glob, bool name_only);
extern int is_valid_tracepoint(const char *event_string);
int is_valid_tracepoint(const char *event_string);
int valid_event_mount(const char *eventfs);
char *parse_events_formats_error_string(char *additional_terms);

30
tools/perf/util/path.c
View file

@ -41,36 +41,6 @@ static char *cleanup_path(char *path)
return path;
}
static char *perf_vsnpath(char *buf, size_t n, const char *fmt, va_list args)
{
const char *perf_dir = get_perf_dir();
size_t len;
len = strlen(perf_dir);
if (n < len + 1)
goto bad;
memcpy(buf, perf_dir, len);
if (len && !is_dir_sep(perf_dir[len-1]))
buf[len++] = '/';
len += vsnprintf(buf + len, n - len, fmt, args);
if (len >= n)
goto bad;
return cleanup_path(buf);
bad:
strlcpy(buf, bad_path, n);
return buf;
}
char *perf_pathdup(const char *fmt, ...)
{
char path[PATH_MAX];
va_list args;
va_start(args, fmt);
(void)perf_vsnpath(path, sizeof(path), fmt, args);
va_end(args);
return xstrdup(path);
}
char *mkpath(const char *fmt, ...)
{
va_list args;

2
tools/perf/util/probe-event.c
View file

@ -2179,7 +2179,7 @@ static int perf_probe_event__sprintf(const char *group, const char *event,
strbuf_addf(result, " in %s", module);
if (pev->nargs > 0) {
strbuf_addstr(result, " with");
strbuf_add(result, " with", 5);
for (i = 0; i < pev->nargs; i++) {
ret = synthesize_perf_probe_arg(&pev->args[i],
buf, 128);

53
tools/perf/util/probe-event.h
View file

@ -114,49 +114,44 @@ int init_probe_symbol_maps(bool user_only);
void exit_probe_symbol_maps(void);
/* Command string to events */
extern int parse_perf_probe_command(const char *cmd,
struct perf_probe_event *pev);
extern int parse_probe_trace_command(const char *cmd,
struct probe_trace_event *tev);
int parse_perf_probe_command(const char *cmd, struct perf_probe_event *pev);
int parse_probe_trace_command(const char *cmd, struct probe_trace_event *tev);
/* Events to command string */
extern char *synthesize_perf_probe_command(struct perf_probe_event *pev);
extern char *synthesize_probe_trace_command(struct probe_trace_event *tev);
extern int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf,
size_t len);
char *synthesize_perf_probe_command(struct perf_probe_event *pev);
char *synthesize_probe_trace_command(struct probe_trace_event *tev);
int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf, size_t len);
/* Check the perf_probe_event needs debuginfo */
extern bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
/* Release event contents */
extern void clear_perf_probe_event(struct perf_probe_event *pev);
extern void clear_probe_trace_event(struct probe_trace_event *tev);
void clear_perf_probe_event(struct perf_probe_event *pev);
void clear_probe_trace_event(struct probe_trace_event *tev);
/* Command string to line-range */
extern int parse_line_range_desc(const char *cmd, struct line_range *lr);
int parse_line_range_desc(const char *cmd, struct line_range *lr);
/* Release line range members */
extern void line_range__clear(struct line_range *lr);
void line_range__clear(struct line_range *lr);
/* Initialize line range */
extern int line_range__init(struct line_range *lr);
int line_range__init(struct line_range *lr);
extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
extern int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs);
extern int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs);
extern void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs);
extern int del_perf_probe_events(struct strfilter *filter);
int add_perf_probe_events(struct perf_probe_event *pevs, int npevs);
int convert_perf_probe_events(struct perf_probe_event *pevs, int npevs);
int apply_perf_probe_events(struct perf_probe_event *pevs, int npevs);
void cleanup_perf_probe_events(struct perf_probe_event *pevs, int npevs);
int del_perf_probe_events(struct strfilter *filter);
extern int show_perf_probe_event(const char *group, const char *event,
struct perf_probe_event *pev,
const char *module, bool use_stdout);
extern int show_perf_probe_events(struct strfilter *filter);
extern int show_line_range(struct line_range *lr, const char *module,
bool user);
extern int show_available_vars(struct perf_probe_event *pevs, int npevs,
struct strfilter *filter);
extern int show_available_funcs(const char *module, struct strfilter *filter,
bool user);
int show_perf_probe_event(const char *group, const char *event,
struct perf_probe_event *pev,
const char *module, bool use_stdout);
int show_perf_probe_events(struct strfilter *filter);
int show_line_range(struct line_range *lr, const char *module, bool user);
int show_available_vars(struct perf_probe_event *pevs, int npevs,
struct strfilter *filter);
int show_available_funcs(const char *module, struct strfilter *filter, bool user);
bool arch__prefers_symtab(void);
void arch__fix_tev_from_maps(struct perf_probe_event *pev,
struct probe_trace_event *tev, struct map *map);

8
tools/perf/util/probe-finder.c
View file

@ -1314,18 +1314,18 @@ static int collect_variables_cb(Dwarf_Die *die_mem, void *data)
if (probe_conf.show_location_range) {
if (!externs) {
if (ret)
strbuf_addf(&buf, "[INV]\t");
strbuf_add(&buf, "[INV]\t", 6);
else
strbuf_addf(&buf, "[VAL]\t");
strbuf_add(&buf, "[VAL]\t", 6);
} else
strbuf_addf(&buf, "[EXT]\t");
strbuf_add(&buf, "[EXT]\t", 6);
}
ret2 = die_get_varname(die_mem, &buf);
if (!ret2 && probe_conf.show_location_range &&
!externs) {
strbuf_addf(&buf, "\t");
strbuf_addch(&buf, '\t');
ret2 = die_get_var_range(&af->pf.sp_die,
die_mem, &buf);
}

24
tools/perf/util/probe-finder.h
View file

@ -34,27 +34,25 @@ struct debuginfo {
};
/* This also tries to open distro debuginfo */
extern struct debuginfo *debuginfo__new(const char *path);
extern void debuginfo__delete(struct debuginfo *dbg);
struct debuginfo *debuginfo__new(const char *path);
void debuginfo__delete(struct debuginfo *dbg);
/* Find probe_trace_events specified by perf_probe_event from debuginfo */
extern int debuginfo__find_trace_events(struct debuginfo *dbg,
struct perf_probe_event *pev,
struct probe_trace_event **tevs);
int debuginfo__find_trace_events(struct debuginfo *dbg,
struct perf_probe_event *pev,
struct probe_trace_event **tevs);
/* Find a perf_probe_point from debuginfo */
extern int debuginfo__find_probe_point(struct debuginfo *dbg,
unsigned long addr,
struct perf_probe_point *ppt);
int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
struct perf_probe_point *ppt);
/* Find a line range */
extern int debuginfo__find_line_range(struct debuginfo *dbg,
struct line_range *lr);
int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr);
/* Find available variables */
extern int debuginfo__find_available_vars_at(struct debuginfo *dbg,
struct perf_probe_event *pev,
struct variable_list **vls);
int debuginfo__find_available_vars_at(struct debuginfo *dbg,
struct perf_probe_event *pev,
struct variable_list **vls);
/* Find a src file from a DWARF tag path */
int get_real_path(const char *raw_path, const char *comp_dir,

2
tools/perf/util/quote.h
View file

@ -24,6 +24,6 @@
* sq_quote() in a real application.
*/
extern void sq_quote_argv(struct strbuf *, const char **argv, size_t maxlen);
void sq_quote_argv(struct strbuf *, const char **argv, size_t maxlen);
#endif /* __PERF_QUOTE_H */

5
tools/perf/util/session.c
View file

@ -1107,12 +1107,11 @@ static struct machine *machines__find_for_cpumode(struct machines *machines,
union perf_event *event,
struct perf_sample *sample)
{
const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
struct machine *machine;
if (perf_guest &&
((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) ||
(cpumode == PERF_RECORD_MISC_GUEST_USER))) {
((sample->cpumode == PERF_RECORD_MISC_GUEST_KERNEL) ||
(sample->cpumode == PERF_RECORD_MISC_GUEST_USER))) {
u32 pid;
if (event->header.type == PERF_RECORD_MMAP

2
tools/perf/util/sort.c
View file

@ -2225,7 +2225,7 @@ int hpp_dimension__add_output(unsigned col)
}
static int sort_dimension__add(struct perf_hpp_list *list, const char *tok,
struct perf_evlist *evlist __maybe_unused,
struct perf_evlist *evlist,
int level)
{
unsigned int i;

18
tools/perf/util/stat-shadow.c
View file

@ -152,8 +152,7 @@ static const char *get_ratio_color(enum grc_type type, double ratio)
}
static void print_stalled_cycles_frontend(int cpu,
struct perf_evsel *evsel
__maybe_unused, double avg,
struct perf_evsel *evsel, double avg,
struct perf_stat_output_ctx *out)
{
double total, ratio = 0.0;
@ -175,8 +174,7 @@ static void print_stalled_cycles_frontend(int cpu,
}
static void print_stalled_cycles_backend(int cpu,
struct perf_evsel *evsel
__maybe_unused, double avg,
struct perf_evsel *evsel, double avg,
struct perf_stat_output_ctx *out)
{
double total, ratio = 0.0;
@ -194,7 +192,7 @@ static void print_stalled_cycles_backend(int cpu,
}
static void print_branch_misses(int cpu,
struct perf_evsel *evsel __maybe_unused,
struct perf_evsel *evsel,
double avg,
struct perf_stat_output_ctx *out)
{
@ -213,7 +211,7 @@ static void print_branch_misses(int cpu,
}
static void print_l1_dcache_misses(int cpu,
struct perf_evsel *evsel __maybe_unused,
struct perf_evsel *evsel,
double avg,
struct perf_stat_output_ctx *out)
{
@ -232,7 +230,7 @@ static void print_l1_dcache_misses(int cpu,
}
static void print_l1_icache_misses(int cpu,
struct perf_evsel *evsel __maybe_unused,
struct perf_evsel *evsel,
double avg,
struct perf_stat_output_ctx *out)
{
@ -250,7 +248,7 @@ static void print_l1_icache_misses(int cpu,
}
static void print_dtlb_cache_misses(int cpu,
struct perf_evsel *evsel __maybe_unused,
struct perf_evsel *evsel,
double avg,
struct perf_stat_output_ctx *out)
{
@ -268,7 +266,7 @@ static void print_dtlb_cache_misses(int cpu,
}
static void print_itlb_cache_misses(int cpu,
struct perf_evsel *evsel __maybe_unused,
struct perf_evsel *evsel,
double avg,
struct perf_stat_output_ctx *out)
{
@ -286,7 +284,7 @@ static void print_itlb_cache_misses(int cpu,
}
static void print_ll_cache_misses(int cpu,
struct perf_evsel *evsel __maybe_unused,
struct perf_evsel *evsel,
double avg,
struct perf_stat_output_ctx *out)
{

9
tools/perf/util/strbuf.c
View file

@ -51,6 +51,13 @@ void strbuf_grow(struct strbuf *sb, size_t extra)
ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc);
}
void strbuf_addch(struct strbuf *sb, int c)
{
strbuf_grow(sb, 1);
sb->buf[sb->len++] = c;
sb->buf[sb->len] = '\0';
}
void strbuf_add(struct strbuf *sb, const void *data, size_t len)
{
strbuf_grow(sb, len);
@ -58,7 +65,7 @@ void strbuf_add(struct strbuf *sb, const void *data, size_t len)
strbuf_setlen(sb, sb->len + len);
}
void strbuf_addv(struct strbuf *sb, const char *fmt, va_list ap)
static void strbuf_addv(struct strbuf *sb, const char *fmt, va_list ap)
{
int len;
va_list ap_saved;

21
tools/perf/util/strbuf.h
View file

@ -51,16 +51,16 @@ struct strbuf {
#define STRBUF_INIT { 0, 0, strbuf_slopbuf }
/*----- strbuf life cycle -----*/
extern void strbuf_init(struct strbuf *buf, ssize_t hint);
extern void strbuf_release(struct strbuf *);
extern char *strbuf_detach(struct strbuf *, size_t *);
void strbuf_init(struct strbuf *buf, ssize_t hint);
void strbuf_release(struct strbuf *buf);
char *strbuf_detach(struct strbuf *buf, size_t *);
/*----- strbuf size related -----*/
static inline ssize_t strbuf_avail(const struct strbuf *sb) {
return sb->alloc ? sb->alloc - sb->len - 1 : 0;
}
extern void strbuf_grow(struct strbuf *, size_t);
void strbuf_grow(struct strbuf *buf, size_t);
static inline void strbuf_setlen(struct strbuf *sb, size_t len) {
if (!sb->alloc)
@ -71,22 +71,17 @@ static inline void strbuf_setlen(struct strbuf *sb, size_t len) {
}
/*----- add data in your buffer -----*/
static inline void strbuf_addch(struct strbuf *sb, int c) {
strbuf_grow(sb, 1);
sb->buf[sb->len++] = c;
sb->buf[sb->len] = '\0';
}
void strbuf_addch(struct strbuf *sb, int c);
extern void strbuf_add(struct strbuf *, const void *, size_t);
void strbuf_add(struct strbuf *buf, const void *, size_t);
static inline void strbuf_addstr(struct strbuf *sb, const char *s) {
strbuf_add(sb, s, strlen(s));
}
__attribute__((format(printf,2,3)))
extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
extern void strbuf_addv(struct strbuf *sb, const char *fmt, va_list ap);
void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
/* XXX: if read fails, any partial read is undone */
extern ssize_t strbuf_read(struct strbuf *, int fd, ssize_t hint);
ssize_t strbuf_read(struct strbuf *, int fd, ssize_t hint);
#endif /* __PERF_STRBUF_H */

43
tools/perf/util/svghelper.h
View file

@ -3,32 +3,31 @@
#include <linux/types.h>
extern void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end);
extern void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
extern void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
extern void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
extern void svg_box(int Yslot, u64 start, u64 end, const char *type);
extern void svg_blocked(int Yslot, int cpu, u64 start, u64 end, const char *backtrace);
extern void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace);
extern void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *backtrace);
extern void svg_cpu_box(int cpu, u64 max_frequency, u64 turbo_frequency);
void open_svg(const char *filename, int cpus, int rows, u64 start, u64 end);
void svg_ubox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
void svg_lbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
void svg_fbox(int Yslot, u64 start, u64 end, double height, const char *type, int fd, int err, int merges);
void svg_box(int Yslot, u64 start, u64 end, const char *type);
void svg_blocked(int Yslot, int cpu, u64 start, u64 end, const char *backtrace);
void svg_running(int Yslot, int cpu, u64 start, u64 end, const char *backtrace);
void svg_waiting(int Yslot, int cpu, u64 start, u64 end, const char *backtrace);
void svg_cpu_box(int cpu, u64 max_frequency, u64 turbo_frequency);
extern void svg_process(int cpu, u64 start, u64 end, int pid, const char *name, const char *backtrace);
extern void svg_cstate(int cpu, u64 start, u64 end, int type);
extern void svg_pstate(int cpu, u64 start, u64 end, u64 freq);
void svg_process(int cpu, u64 start, u64 end, int pid, const char *name, const char *backtrace);
void svg_cstate(int cpu, u64 start, u64 end, int type);
void svg_pstate(int cpu, u64 start, u64 end, u64 freq);
extern void svg_time_grid(double min_thickness);
extern void svg_io_legenda(void);
extern void svg_legenda(void);
extern void svg_wakeline(u64 start, int row1, int row2, const char *backtrace);
extern void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2, const char *backtrace);
extern void svg_interrupt(u64 start, int row, const char *backtrace);
extern void svg_text(int Yslot, u64 start, const char *text);
extern void svg_close(void);
extern int svg_build_topology_map(char *sib_core, int sib_core_nr,
char *sib_thr, int sib_thr_nr);
void svg_time_grid(double min_thickness);
void svg_io_legenda(void);
void svg_legenda(void);
void svg_wakeline(u64 start, int row1, int row2, const char *backtrace);
void svg_partial_wakeline(u64 start, int row1, char *desc1, int row2, char *desc2, const char *backtrace);
void svg_interrupt(u64 start, int row, const char *backtrace);
void svg_text(int Yslot, u64 start, const char *text);
void svg_close(void);
int svg_build_topology_map(char *sib_core, int sib_core_nr, char *sib_thr, int sib_thr_nr);
extern int svg_page_width;
extern u64 svg_highlight;

12
tools/perf/util/symbol-elf.c
View file

@ -793,6 +793,7 @@ int dso__load_sym(struct dso *dso, struct map *map,
uint32_t idx;
GElf_Ehdr ehdr;
GElf_Shdr shdr;
GElf_Shdr tshdr;
Elf_Data *syms, *opddata = NULL;
GElf_Sym sym;
Elf_Scn *sec, *sec_strndx;
@ -832,6 +833,9 @@ int dso__load_sym(struct dso *dso, struct map *map,
sec = syms_ss->symtab;
shdr = syms_ss->symshdr;
if (elf_section_by_name(elf, &ehdr, &tshdr, ".text", NULL))
dso->text_offset = tshdr.sh_addr - tshdr.sh_offset;
if (runtime_ss->opdsec)
opddata = elf_rawdata(runtime_ss->opdsec, NULL);
@ -880,12 +884,8 @@ int dso__load_sym(struct dso *dso, struct map *map,
* Handle any relocation of vdso necessary because older kernels
* attempted to prelink vdso to its virtual address.
*/
if (dso__is_vdso(dso)) {
GElf_Shdr tshdr;
if (elf_section_by_name(elf, &ehdr, &tshdr, ".text", NULL))
map->reloc = map->start - tshdr.sh_addr + tshdr.sh_offset;
}
if (dso__is_vdso(dso))
map->reloc = map->start - dso->text_offset;
dso->adjust_symbols = runtime_ss->adjust_symbols || ref_reloc(kmap);
/*

4
tools/perf/util/symbol.h
View file

@ -34,8 +34,8 @@
#endif
#ifdef HAVE_LIBELF_SUPPORT
extern Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
GElf_Shdr *shp, const char *name, size_t *idx);
Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep,
GElf_Shdr *shp, const char *name, size_t *idx);
#endif
#ifndef DMGL_PARAMS

8
tools/perf/util/usage.c
View file

@ -41,15 +41,9 @@ static void warn_builtin(const char *warn, va_list params)
/* If we are in a dlopen()ed .so write to a global variable would segfault
* (ugh), so keep things static. */
static void (*usage_routine)(const char *err) NORETURN = usage_builtin;
static void (*die_routine)(const char *err, va_list params) NORETURN = die_builtin;
static void (*error_routine)(const char *err, va_list params) = error_builtin;
static void (*warn_routine)(const char *err, va_list params) = warn_builtin;
void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN)
{
die_routine = routine;
}
void set_warning_routine(void (*routine)(const char *err, va_list params))
{
warn_routine = routine;
@ -65,7 +59,7 @@ void die(const char *err, ...)
va_list params;
va_start(params, err);
die_routine(err, params);
die_builtin(err, params);
va_end(params);
}

27
tools/perf/util/util.h
View file

@ -133,25 +133,15 @@ extern char buildid_dir[];
#define PERF_GTK_DSO "libperf-gtk.so"
/* General helper functions */
extern void usage(const char *err) NORETURN;
extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
extern int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
extern void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
void usage(const char *err) NORETURN;
void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
int error(const char *err, ...) __attribute__((format (printf, 1, 2)));
void warning(const char *err, ...) __attribute__((format (printf, 1, 2)));
#include "../../../include/linux/stringify.h"
void set_warning_routine(void (*routine)(const char *err, va_list params));
#define DIE_IF(cnd) \
do { if (cnd) \
die(" at (" __FILE__ ":" __stringify(__LINE__) "): " \
__stringify(cnd) "\n"); \
} while (0)
extern void set_die_routine(void (*routine)(const char *err, va_list params) NORETURN);
extern void set_warning_routine(void (*routine)(const char *err, va_list params));
extern int prefixcmp(const char *str, const char *prefix);
extern void set_buildid_dir(const char *dir);
int prefixcmp(const char *str, const char *prefix);
void set_buildid_dir(const char *dir);
#ifdef __GLIBC_PREREQ
#if __GLIBC_PREREQ(2, 1)
@ -172,8 +162,7 @@ static inline char *gitstrchrnul(const char *s, int c)
/*
* Wrappers:
*/
extern char *xstrdup(const char *str);
extern void *xrealloc(void *ptr, size_t size) __attribute__((weak));
void *xrealloc(void *ptr, size_t size) __attribute__((weak));
static inline void *zalloc(size_t size)

12
tools/perf/util/wrapper.c
View file

@ -12,18 +12,6 @@ static inline void release_pack_memory(size_t size __maybe_unused,
{
}
char *xstrdup(const char *str)
{
char *ret = strdup(str);
if (!ret) {
release_pack_memory(strlen(str) + 1, -1);
ret = strdup(str);
if (!ret)
die("Out of memory, strdup failed");
}
return ret;
}
void *xrealloc(void *ptr, size_t size)
{
void *ret = realloc(ptr, size);

0
tools/perf/config/utilities.mak → tools/scripts/utilities.mak
View file