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7be6296fdd
linux/arch/x86/kernel/cpu
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Suravee Suthikulpanit 7be6296fdd perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 
Implement a perf PMU to handle IOMMU performance counters and events.
The PMU only supports counting mode (e.g. perf stat). Since the counters
are shared across all cores, the PMU is implemented as "system-wide" mode.

To invoke the AMD IOMMU PMU, issue a perf tool command such as:

  ./perf stat -a -e amd_iommu/<events>/ <command>

or:

  ./perf stat -a -e amd_iommu/config=<config-data>,config1=<config1-data>/ <command>

For example:

  ./perf stat -a -e amd_iommu/mem_trans_total/ <command>

The resulting count will be how many IOMMU total peripheral memory
operations were performed during the command execution window.

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1370466709-3212-3-git-send-email-suravee.suthikulpanit@amd.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-19 13:04:53 +02:00
..
mcheck Clean up cmci_rediscover code to fix problems found by Dave Jones 2013-04-08 17:41:50 +02:00
mtrr taint: add explicit flag to show whether lock dep is still OK. 2013-01-21 17:17:57 +10:30
.gitignore
amd.c x86, CPU, AMD: Drop useless label 2013-04-16 11:50:51 +02:00
bugs_64.c
bugs.c x86: Fold-in trivial check_config function 2013-04-16 11:50:50 +02:00
centaur.c x86, centaur: Enable cx8 for VIA Eden too 2011-12-15 08:04:42 -08:00
common.c x86, cpu: Expand cpufeature facility to include cpu bugs 2013-04-02 10:12:52 -07:00
cpu.h x86/tlb_info: get last level TLB entry number of CPU 2012-06-27 19:28:24 -07:00
cyrix.c x86, cpu: Convert Cyrix coma bug detection 2013-04-02 10:12:54 -07:00
hypervisor.c x86/apic: Allow x2apic without IR on VMware platform 2013-01-24 13:11:18 +01:00
intel_cacheinfo.c Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-19 20:09:48 -08:00
intel.c Merge branch 'x86-kaslr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:37:24 -07:00
Makefile perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
match.c x86: Fix typo in MODULE_DEVICE_TABLE example: s/x86_cpu/x86cpu/ 2012-04-16 14:20:19 +02:00
mkcapflags.sh mkcapflags.pl: convert to mkcapflags.sh 2013-04-29 15:54:27 -07:00
mshyperv.c x86, hyperv: Handle Xen emulation of Hyper-V more gracefully 2013-04-18 08:59:20 -07:00
perf_event_amd_ibs.c treewide: Replace incomming with incoming in all comments and strings 2013-01-03 16:15:49 +01:00
perf_event_amd_iommu.c perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
perf_event_amd_iommu.h perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation 2013-06-19 13:04:53 +02:00
perf_event_amd_uncore.c perf/x86/amd: Fix AMD NB and L2I "uncore" support 2013-04-22 10:10:55 +02:00
perf_event_amd.c perf/x86/amd: Rework AMD PMU init code 2013-05-28 09:13:55 +02:00
perf_event_intel_ds.c Merge branch 'perf/urgent' into perf/core 2013-04-21 10:57:33 +02:00
perf_event_intel_lbr.c perf/x86: Check branch sampling priv level in generic code 2013-05-28 09:13:54 +02:00
perf_event_intel_uncore.c perf/x86: Reduce stack usage of x86_schedule_events() 2013-06-19 12:50:44 +02:00
perf_event_intel_uncore.h perf/x86/intel: Prevent some shift wrapping bugs in the Intel uncore driver 2013-05-28 09:13:52 +02:00
perf_event_intel.c perf/x86: Only print PMU state when also WARN()'ing 2013-06-19 12:50:47 +02:00
perf_event_knc.c x86: Constify a few items 2013-03-11 15:11:03 +01:00
perf_event_p4.c perf/x86/intel/P4: Robistify P4 PMU types 2013-04-26 09:31:41 +02:00
perf_event_p6.c x86: Constify a few items 2013-03-11 15:11:03 +01:00
perf_event.c perf/x86: Reduce stack usage of x86_schedule_events() 2013-06-19 12:50:44 +02:00
perf_event.h perf/x86: Reduce stack usage of x86_schedule_events() 2013-06-19 12:50:44 +02:00
perfctr-watchdog.c perf/x86: Add support for Intel Xeon-Phi Knights Corner PMU 2012-10-04 13:32:37 +02:00
powerflags.c x86: Report cpb and eff_freq_ro flags correctly 2011-12-15 08:14:49 +01:00
proc.c x86, cpu: Convert Cyrix coma bug detection 2013-04-02 10:12:54 -07:00
rdrand.c x86, random: Verify RDRAND functionality and allow it to be disabled 2011-07-31 14:02:19 -07:00
scattered.c cpufreq: AMD "frequency sensitivity feedback" powersave bias for ondemand governor 2013-04-10 13:19:26 +02:00
topology.c x86, cpu: Split addon_cpuid_features.c 2010-07-19 19:02:41 -07:00
transmeta.c
umc.c
vmware.c x86/apic: Allow x2apic without IR on VMware platform 2013-01-24 13:11:18 +01:00