Matt Fleming bfe1fcd268 perf/x86/intel: Support task events with Intel CQM ... Add support for task events as well as system-wide events. This change has a big impact on the way that we gather LLC occupancy values in intel_cqm_event_read(). Currently, for system-wide (per-cpu) events we defer processing to userspace which knows how to discard all but one cpu result per package. Things aren't so simple for task events because we need to do the value aggregation ourselves. To do this, we defer updating the LLC occupancy value in event->count from intel_cqm_event_read() and do an SMP cross-call to read values for all packages in intel_cqm_event_count(). We need to ensure that we only do this for one task event per cache group, otherwise we'll report duplicate values. If we're a system-wide event we want to fallback to the default perf_event_count() implementation. Refactor this into a common function so that we don't duplicate the code. Also, introduce PERF_TYPE_INTEL_CQM, since we need a way to track an event's task (if the event isn't per-cpu) inside of the Intel CQM PMU driver. This task information is only availble in the upper layers of the perf infrastructure. Other perf backends stash the target task in event->hw.*target so we need to do something similar. The task is used to determine whether events should share a cache group and an RMID. Signed-off-by: Matt Fleming <matt.fleming@intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kanaka Juvva <kanaka.d.juvva@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com> Cc: linux-api@vger.kernel.org Link: http://lkml.kernel.org/r/1422038748-21397-8-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>		2015-02-25 13:53:34 +01:00
..
acpi	x86: Store a per-cpu shadow copy of CR4	2015-02-04 12:10:42 +01:00
apic	Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-12-19 14:02:02 -08:00
cpu	perf/x86/intel: Support task events with Intel CQM	2015-02-25 13:53:34 +01:00
kprobes	ftrace/jprobes/x86: Fix conflict between jprobes and function graph tracing	2015-01-15 09:39:18 -05:00
.gitignore
alternative.c	kprobes, x86: Allow kprobes on text_poke/hw_breakpoint	2014-04-24 10:03:02 +02:00
amd_gart_64.c	x86: enable DMA CMA with swiotlb	2014-06-04 16:53:57 -07:00
amd_nb.c	x86, amd_nb: Add device IDs to NB tables for F15h M60h	2014-10-20 14:18:45 +02:00
apb_timer.c	x86, intel-mid: Create IRQs for APB timers and RTC timers	2014-10-29 08:52:23 +01:00
aperture_64.c	x86/gart: Tidy messages and add bridge device info	2014-05-23 10:47:19 -06:00
apm_32.c	cpuidle: Invert CPUIDLE_FLAG_TIME_VALID logic	2014-11-12 21:17:27 +01:00
asm-offsets.c	sched, x86: Provide a per-cpu preempt_count implementation	2013-09-25 14:07:57 +02:00
asm-offsets_32.c	x86/asm: Guard against building the 32/64-bit versions of the asm-offsets*.c file directly	2014-12-11 11:43:56 +01:00
asm-offsets_64.c	Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-12-14 11:51:50 -08:00
audit_64.c	x86: hook up execveat system call	2014-12-13 12:42:51 -08:00
bootflag.c
check.c	x86/mm: memblock: switch to use NUMA_NO_NODE	2014-01-21 16:19:47 -08:00
cpuid.c	x86, cpuid: Use PTR_ERR_OR_ZERO	2014-10-17 13:40:51 -07:00
crash.c	x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h	2014-12-16 14:08:17 +01:00
crash_dump_32.c
crash_dump_64.c
devicetree.c	x86, irq, devicetree: Release IOAPIC pin when PCI device is disabled	2014-06-21 23:05:44 +02:00
doublefault.c	x86: Delete non-required instances of include <linux/init.h>	2014-01-06 21:25:18 -08:00
dumpstack.c	kprobes, x86: Use NOKPROBE_SYMBOL() instead of __kprobes annotation	2014-04-24 10:26:38 +02:00
dumpstack_32.c	Merge branch 'x86-threadinfo-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-04-01 10:17:18 -07:00
dumpstack_64.c	x86_64, traps: Stop using IST for #SS	2014-11-23 13:56:19 -08:00
e820.c	x86/mm: Use min() instead of min_t() in the e820 printout code	2014-12-11 11:35:02 +01:00
early-quirks.c	drm/i915/skl: Add the additional graphics stolen sizes	2014-09-24 14:47:39 +02:00
early_printk.c	Merge branch 'x86-intel-mid-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-11-12 11:12:22 +09:00
entry_32.S	Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-12-19 14:02:02 -08:00
entry_64.S	x86_64, entry: Remove the syscall exit audit and schedule optimizations	2015-02-01 04:03:02 -08:00
espfix_64.c	x86, espfix: Remove stale ptemask	2014-11-11 17:57:46 +01:00
ftrace.c	module: remove mod arg from module_free, rename module_memfree().	2015-01-20 11:38:33 +10:30
head.c	x86: Make sure we can boot in the case the BDA contains pure garbage	2013-02-27 13:38:57 -08:00
head32.c	x86: Store a per-cpu shadow copy of CR4	2015-02-04 12:10:42 +01:00
head64.c	x86: Store a per-cpu shadow copy of CR4	2015-02-04 12:10:42 +01:00
head_32.S	x86: fix compile error due to X86_TRAP_NMI use in asm files	2014-03-07 18:58:40 -08:00
head_64.S	x86: fix compile error due to X86_TRAP_NMI use in asm files	2014-03-07 18:58:40 -08:00
hpet.c	Merge branch 'x86/vdso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next	2014-06-05 08:05:29 -07:00
hw_breakpoint.c	perf/x86: Remove get_hbp_len and replace with bp_len	2014-12-03 15:14:30 +01:00
i386_ksyms_32.c	sched, x86: Optimize the preempt_schedule() call	2013-09-25 14:23:07 +02:00
i387.c	x86: Clean up cr4 manipulation	2015-02-04 12:10:41 +01:00
i8237.c
i8253.c
i8259.c	x86/irq: Fix XT-PIC-XT-PIC in /proc/interrupts	2014-10-28 12:01:08 +01:00
io_delay.c
ioport.c	x86: get rid of pt_regs argument of iopl(2)	2013-02-03 18:16:24 -05:00
iosf_mbi.c	x86/platform/intel/iosf: Add debugfs config option for IOSF	2014-09-19 13:08:43 +02:00
irq.c	x86, irq: Properly tag virtualization entry in /proc/interrupts	2015-01-20 12:37:23 +01:00
irq_32.c	x86: Clean up current_stack_pointer	2015-01-02 10:22:46 -08:00
irq_64.c	x86: Replace __get_cpu_var uses	2014-08-26 13:45:49 -04:00
irq_work.c	x86: Tell irq work about self IPI support	2014-09-13 18:38:29 +02:00
irqinit.c	x86, irq: Move local APIC related code from io_apic.c into vector.c	2014-12-16 14:08:16 +01:00
jump_label.c	x86/jump_label: expect default_nop if static_key gets enabled on boot-up	2013-10-19 19:45:35 -04:00
kdebugfs.c
kexec-bzimage64.c	kexec-bzimage64: fix sparse warnings	2014-10-14 02:18:21 +02:00
kgdb.c	x86: Delete non-required instances of include <linux/init.h>	2014-01-06 21:25:18 -08:00
ksysfs.c	x86: ksysfs.c build fix	2014-01-03 14:37:13 +00:00
kvm.c	x86, kvm: Clear paravirt_enabled on KVM guests for espfix32's benefit	2014-12-10 12:49:39 +01:00
kvmclock.c	x86, kvm: Clear paravirt_enabled on KVM guests for espfix32's benefit	2014-12-10 12:49:39 +01:00
ldt.c	Revert "x86-64, modify_ldt: Make support for 16-bit segments a runtime option"	2014-05-21 10:22:59 -07:00
machine_kexec_32.c	x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h	2014-12-16 14:08:17 +01:00
machine_kexec_64.c	x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h	2014-12-16 14:08:17 +01:00
Makefile	x86_64,vsyscall: Make vsyscall emulation configurable	2014-11-03 21:44:57 +01:00
mcount_64.S	ftrace/fgraph/x86: Have prepare_ftrace_return() take ip as first parameter	2014-12-01 14:08:58 -05:00
mmconf-fam10h_64.c	x86: delete __cpuinit usage from all x86 files	2013-07-14 19:36:56 -04:00
module.c	x86, kaslr: fix module lock ordering problem	2014-03-24 10:18:26 -07:00
mpparse.c	x86, apic: Remove mps_oem_check callback	2014-07-31 08:05:42 -07:00
msr.c	x86, msr: Use seek definitions instead of hard-coded values	2014-10-17 13:40:55 -07:00
nmi.c	kprobes, x86: Use NOKPROBE_SYMBOL() instead of __kprobes annotation	2014-04-24 10:26:38 +02:00
nmi_selftest.c
paravirt-spinlocks.c	x86, ticketlock: Add slowpath logic	2013-08-09 07:54:00 -07:00
paravirt.c	kprobes, x86: Prohibit probing on native_set_debugreg()/load_idt()	2014-04-24 10:02:58 +02:00
paravirt_patch_32.c
paravirt_patch_64.c	x86_64/entry/xen: Do not invoke espfix64 on Xen	2014-07-28 15:25:40 -07:00
pci-calgary_64.c	x86, calgary: Use 8M TCE table size by default	2014-04-10 19:51:32 -07:00
pci-dma.c	arch/x86/kernel/pci-dma.c: fix dma_generic_alloc_coherent() when CONFIG_DMA_CMA is enabled	2014-06-04 16:53:57 -07:00
pci-iommu_table.c
pci-nommu.c	x86: Delete non-required instances of include <linux/init.h>	2014-01-06 21:25:18 -08:00
pci-swiotlb.c	x86: enable DMA CMA with swiotlb	2014-06-04 16:53:57 -07:00
pcspeaker.c
perf_regs.c	perf/x86_64: Improve user regs sampling	2015-01-09 11:12:29 +01:00
pmc_atom.c	x86/platform/pmc_atom: Fix warning when CONFIG_DEBUG_FS=n	2014-09-19 13:02:21 +02:00
probe_roms.c
process.c	x86: Clean up cr4 manipulation	2015-02-04 12:10:41 +01:00
process_32.c	x86: Store a per-cpu shadow copy of CR4	2015-02-04 12:10:42 +01:00
process_64.c	x86: Store a per-cpu shadow copy of CR4	2015-02-04 12:10:42 +01:00
ptrace.c	x86, syscall: Fix _TIF_NOHZ handling in syscall_trace_enter_phase1	2014-11-20 23:01:53 +01:00
pvclock.c	hung_task: add method to reset detector	2013-11-06 09:49:02 +02:00
quirks.c	x86: HPET force enable for e6xx based systems	2014-09-15 17:53:35 -07:00
reboot.c	x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h	2014-12-16 14:08:17 +01:00
reboot_fixups_32.c
relocate_kernel_32.S	x86, asm, cleanup: Replace open-coded control register values with symbolic	2013-06-25 16:26:06 -07:00
relocate_kernel_64.S	x86, reloc: Use xorl instead of xorq in relocate_kernel_64.S	2013-06-20 21:30:04 -07:00
resource.c	x86: don't exclude low BIOS area when allocating address space for non-PCI cards	2014-07-16 12:29:36 -06:00
rtc.c	Merge branch 'x86-intel-mid-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-11-12 11:12:22 +09:00
setup.c	x86: Store a per-cpu shadow copy of CR4	2015-02-04 12:10:42 +01:00
setup_percpu.c	x86: Convert a few more per-CPU items to read-mostly ones	2014-11-04 20:13:28 +01:00
signal.c	x86, mce: Get rid of TIF_MCE_NOTIFY and associated mce tricks	2015-01-07 07:47:42 -08:00
smp.c	asmlinkage, x86: Add explicit __visible to arch/x86/*	2014-05-05 16:07:44 -07:00
smpboot.c	x86, smpboot: Remove pointless preempt_disable() in native_smp_prepare_cpus()	2014-12-16 14:08:14 +01:00
stacktrace.c
step.c
sys_x86_64.c	x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member	2013-08-22 10:19:35 -07:00
syscall_32.c	x86, asmlinkage: Make syscall tables visible	2013-08-06 14:20:18 -07:00
syscall_64.c	x86, asmlinkage: Make syscall tables visible	2013-08-06 14:20:18 -07:00
sysfb.c	x86/sysfb: Use PTR_ERR_OR_ZERO	2014-10-17 13:40:52 -07:00
sysfb_efi.c	x86: sysfb: move EFI quirks from efifb to sysfb	2013-08-02 16:17:47 -07:00
sysfb_simplefb.c	x86/simplefb: Use PTR_ERR_OR_ZERO	2014-10-17 13:40:52 -07:00
tboot.c	x86 / tboot / ACPI: Fail extended mode reduced hardware sleep	2013-07-31 14:25:51 +02:00
tce_64.c
test_nx.c
test_rodata.c
time.c	x86_64/vdso: Remove jiffies from the vvar page	2014-10-28 11:22:13 +01:00
tls.c	x86, tls: Interpret an all-zero struct user_desc as "no segment"	2015-01-22 21:45:07 +01:00
tls.h
topology.c	hotplug, powerpc, x86: Remove cpu_hotplug_driver_lock()	2013-09-30 19:55:51 +02:00
trace_clock.c
tracepoint.c	x86: Make sure IDT is page aligned	2013-07-16 15:14:48 -07:00
traps.c	x86, traps: Fix ist_enter from userspace	2015-02-01 04:02:53 -08:00
tsc.c	x86/tsc: Change Fast TSC calibration failed from error to info	2015-01-23 10:53:52 +01:00
tsc_msr.c	x86: tsc: Add missing Baytrail frequency to the table	2014-02-19 17:12:24 +01:00
tsc_sync.c	x86: Delete non-required instances of include <linux/init.h>	2014-01-06 21:25:18 -08:00
uprobes.c	x86: Remove arbitrary instruction size limit in instruction decoder	2014-11-18 00:58:52 +01:00
verify_cpu.S
vm86_32.c	x86, vm86: fix VM86 syscalls: use SYSCALL_DEFINEx(...)	2013-05-02 20:36:32 -04:00
vmlinux.lds.S	x86-64: Use RIP-relative addressing for most per-CPU accesses	2014-11-04 20:43:14 +01:00
vsmp_64.c	x86/apic/vsmp: Make is_vsmp_box() static	2014-08-01 15:09:45 -07:00
vsyscall_64.c	x86_64/vsyscall: Restore orig_ax after vsyscall seccomp	2014-11-10 10:46:35 +01:00
vsyscall_emu_64.S
vsyscall_gtod.c	timekeeping: Create struct tk_read_base and use it in struct timekeeper	2014-07-23 15:01:53 -07:00
vsyscall_trace.h
x86_init.c	Revert "PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()"	2014-11-11 15:14:30 -07:00
x8664_ksyms_64.c	sched, x86: Optimize the preempt_schedule() call	2013-09-25 14:23:07 +02:00
xsave.c	x86: Clean up cr4 manipulation	2015-02-04 12:10:41 +01:00