linux-kernel - [PATCH] perf/x86/amd: Adding support for new IOMMU performance event

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Date:	Fri, 11 Dec 2015 16:53:17 -0600
From:	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
To:	<peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
	<joro@...tes.org>
CC:	<linux-kernel@...r.kernel.org>, <iommu@...ts.linux-foundation.org>,
	Suravee Suthikulpanit <suravee.suthikulpanit@....com>,
	Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
Subject: [PATCH] perf/x86/amd: Adding support for new IOMMU performance event

From: Suravee Suthikulpanit <suravee.suthikulpanit@....com>

This patch adds new IOMMU performance event based on
the information in table 74 of the AMD I/O Virtualization Technology
(IOMMU) Specification (Document Id: 4882, Rev 2.62, Feb 2015)

Link: http://support.amd.com/TechDocs/48882_IOMMU.pdf
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@....com>
---
 arch/x86/kernel/cpu/perf_event_amd_iommu.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/x86/kernel/cpu/perf_event_amd_iommu.c b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
index 97242a9..86f8259 100644
--- a/arch/x86/kernel/cpu/perf_event_amd_iommu.c
+++ b/arch/x86/kernel/cpu/perf_event_amd_iommu.c
@@ -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 */ },
 };
 
-- 
1.9.1

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