2015-12-11 23:04:22

by Suthikulpanit, Suravee

Subject: [PATCH] perf/x86/amd: Adding support for new IOMMU performance event

From: Suravee Suthikulpanit <[email protected]>

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 <[email protected]>
---
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

2015-12-14 15:05:46

by Joerg Roedel

Subject: Re: [PATCH] perf/x86/amd: Adding support for new IOMMU performance event

On Fri, Dec 11, 2015 at 04:53:17PM -0600, Suravee Suthikulpanit wrote:
> From: Suravee Suthikulpanit <[email protected]>
>
> 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 <[email protected]>
> ---
> arch/x86/kernel/cpu/perf_event_amd_iommu.c | 5 +++++
> 1 file changed, 5 insertions(+)

Reviewed-by: Joerg Roedel <[email protected]>
Acked-by: Joerg Roedel <[email protected]>

>
> 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
>