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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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7be6296fdd
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>
58 lines
1.7 KiB
Makefile
58 lines
1.7 KiB
Makefile
#
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# Makefile for x86-compatible CPU details, features and quirks
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#
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# Don't trace early stages of a secondary CPU boot
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ifdef CONFIG_FUNCTION_TRACER
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CFLAGS_REMOVE_common.o = -pg
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CFLAGS_REMOVE_perf_event.o = -pg
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endif
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# Make sure load_percpu_segment has no stackprotector
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nostackp := $(call cc-option, -fno-stack-protector)
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CFLAGS_common.o := $(nostackp)
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obj-y := intel_cacheinfo.o scattered.o topology.o
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obj-y += proc.o capflags.o powerflags.o common.o
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obj-y += rdrand.o
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obj-y += match.o
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obj-$(CONFIG_X86_32) += bugs.o
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obj-$(CONFIG_X86_64) += bugs_64.o
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obj-$(CONFIG_CPU_SUP_INTEL) += intel.o
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obj-$(CONFIG_CPU_SUP_AMD) += amd.o
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obj-$(CONFIG_CPU_SUP_CYRIX_32) += cyrix.o
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obj-$(CONFIG_CPU_SUP_CENTAUR) += centaur.o
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obj-$(CONFIG_CPU_SUP_TRANSMETA_32) += transmeta.o
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obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o
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obj-$(CONFIG_PERF_EVENTS) += perf_event.o
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ifdef CONFIG_PERF_EVENTS
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obj-$(CONFIG_CPU_SUP_AMD) += perf_event_amd.o perf_event_amd_uncore.o
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ifdef CONFIG_AMD_IOMMU
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obj-$(CONFIG_CPU_SUP_AMD) += perf_event_amd_iommu.o
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endif
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obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_p6.o perf_event_knc.o perf_event_p4.o
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obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_intel_lbr.o perf_event_intel_ds.o perf_event_intel.o
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obj-$(CONFIG_CPU_SUP_INTEL) += perf_event_intel_uncore.o
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endif
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obj-$(CONFIG_X86_MCE) += mcheck/
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obj-$(CONFIG_MTRR) += mtrr/
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obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o perf_event_amd_ibs.o
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obj-$(CONFIG_HYPERVISOR_GUEST) += vmware.o hypervisor.o mshyperv.o
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quiet_cmd_mkcapflags = MKCAP $@
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cmd_mkcapflags = $(CONFIG_SHELL) $(srctree)/$(src)/mkcapflags.sh $< $@
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cpufeature = $(src)/../../include/asm/cpufeature.h
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targets += capflags.c
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$(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.sh FORCE
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$(call if_changed,mkcapflags)
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