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Date: Fri, 25 Jan 2013 10:42:57 +0100
From: Stephane Eranian <eranian@...glemail.com>
To: Jacob Shin <jacob.shin@....com>
Cc: Stephane Eranian <eranian@...gle.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>, x86 <x86@...nel.org>,
LKML <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...hat.com>,
Paul Mackerras <paulus@...ba.org>, acme@...stprotocols.net,
"H. Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [perfmon2] [PATCH RESEND V5 0/6] perf, amd: Enable AMD family 15h
northbridge counters
Hi Jacob,
I will apply this patch to libpfm4.
But I have a question. Why aren't the other uncore
events included here as well? I am talking about
the events listed in BKDG sections 3.16.2 to 3.16.6?
Are those NOT supported by your kernel patchset?
On Thu, Jan 24, 2013 at 11:06 PM, Jacob Shin <jacob.shin@....com> wrote:
> On Thu, Jan 24, 2013 at 02:31:59PM +0100, Stephane Eranian wrote:
>> On Thu, Jan 10, 2013 at 8:50 PM, Jacob Shin <jacob.shin@....com> wrote:
>> > The following patchset enables 4 additional performance counters in
>> > AMD family 15h processors that count northbridge events -- such as
>> > number of DRAM accesses.
>> >
>> In order for me to test this patch set more thoroughly it would help if you
>> could also provide me a patch to add the Fam15h uncore events to libpfm4.
>> In the past, Robert Richter took care of this. I hope you can fill his role for
>> this. So please, if you could send me the patch quickly, that would help
>> the review of your patch.
>
> Hi Stephane,
>
> Here is the corresponding libpfm4 patch. Thank you for taking the time
> to review the patchset. I hope this helps .. If we can get AMD related
> perf kernel side patchsets to upstream, I will be more than happy to
> support AMD related libpfm4 efforts going forward.
>
> Thanks!
>
> >From 47d3267dfa24b9071c76f4a22bd059b0e4032002 Mon Sep 17 00:00:00 2001
> From: Jacob Shin <jacob.shin@....com>
> Date: Thu, 24 Jan 2013 15:37:37 -0600
> Subject: [PATCH 1/1] Add AMD Family 15h northbridge performance events
>
> libpfm4 side support for the following Linux kernel patchset:
> http://lkml.org/lkml/2013/1/10/450
>
> Reference -- BIOS and Kernel Developer Guide (BKDG) for AMD Family 15h
> Models 00h-0Fh Processors:
> http://support.amd.com/us/Processor_TechDocs/42301_15h_Mod_00h-0Fh_BKDG.pdf
>
> Signed-off-by: Jacob Shin <jacob.shin@....com>
> ---
> lib/events/amd64_events_fam15h.h | 155 ++++++++++++++++++++++++++++++++++++++
> 1 file changed, 155 insertions(+)
>
> diff --git a/lib/events/amd64_events_fam15h.h b/lib/events/amd64_events_fam15h.h
> index 7f654e8..0276782 100644
> --- a/lib/events/amd64_events_fam15h.h
> +++ b/lib/events/amd64_events_fam15h.h
> @@ -752,6 +752,126 @@ static const amd64_umask_t amd64_fam15h_l2_prefetcher_trigger_events[]={
> },
> };
>
> +static const amd64_umask_t amd64_fam15h_dram_accesses[]={
> + { .uname = "DCT0_PAGE_HIT",
> + .udesc = "DCT0 Page hit",
> + .ucode = 0x1,
> + },
> + { .uname = "DCT0_PAGE_MISS",
> + .udesc = "DCT0 Page Miss",
> + .ucode = 0x2,
> + },
> + { .uname = "DCT0_PAGE_CONFLICT",
> + .udesc = "DCT0 Page Conflict",
> + .ucode = 0x4,
> + },
> + { .uname = "DCT1_PAGE_HIT",
> + .udesc = "DCT1 Page hit",
> + .ucode = 0x8,
> + },
> + { .uname = "DCT1_PAGE_MISS",
> + .udesc = "DCT1 Page Miss",
> + .ucode = 0x10,
> + },
> + { .uname = "DCT1_PAGE_CONFLICT",
> + .udesc = "DCT1 Page Conflict",
> + .ucode = 0x20,
> + },
> + { .uname = "ALL",
> + .udesc = "All sub-events selected",
> + .ucode = 0x3f,
> + .uflags = AMD64_FL_NCOMBO | AMD64_FL_DFL,
> + },
> +};
> +
> +static const amd64_umask_t amd64_fam15h_dram_controller_page_table_overflows[]={
> + { .uname = "DCT0_PAGE_TABLE_OVERFLOW",
> + .udesc = "DCT0 Page Table Overflow",
> + .ucode = 0x1,
> + },
> + { .uname = "DCT1_PAGE_TABLE_OVERFLOW",
> + .udesc = "DCT1 Page Table Overflow",
> + .ucode = 0x2,
> + },
> + { .uname = "ALL",
> + .udesc = "All sub-events selected",
> + .ucode = 0x3,
> + .uflags = AMD64_FL_NCOMBO | AMD64_FL_DFL,
> + },
> +};
> +
> +static const amd64_umask_t amd64_fam15h_memory_controller_dram_command_slots_missed[]={
> + { .uname = "DCT0_COMMAND_SLOTS_MISSED",
> + .udesc = "DCT0 Command Slots Missed (in MemClks)",
> + .ucode = 0x1,
> + },
> + { .uname = "DCT1_COMMAND_SLOTS_MISSED",
> + .udesc = "DCT1 Command Slots Missed (in MemClks)",
> + .ucode = 0x2,
> + },
> + { .uname = "ALL",
> + .udesc = "All sub-events selected",
> + .ucode = 0x3,
> + .uflags = AMD64_FL_NCOMBO | AMD64_FL_DFL,
> + },
> +};
> +
> +static const amd64_umask_t amd64_fam15h_memory_controller_turnarounds[]={
> + { .uname = "DCT0_DIMM_TURNAROUND",
> + .udesc = "DCT0 DIMM (chip select) turnaround",
> + .ucode = 0x1,
> + },
> + { .uname = "DCT0_READ_TO_WRITE_TURNAROUND",
> + .udesc = "DCT0 Read to write turnaround",
> + .ucode = 0x2,
> + },
> + { .uname = "DCT0_WRITE_TO_READ_TURNAROUND",
> + .udesc = "DCT0 Write to read turnaround",
> + .ucode = 0x4,
> + },
> + { .uname = "DCT1_DIMM_TURNAROUND",
> + .udesc = "DCT1 DIMM (chip select) turnaround",
> + .ucode = 0x8,
> + },
> + { .uname = "DCT1_READ_TO_WRITE_TURNAROUND",
> + .udesc = "DCT1 Read to write turnaround",
> + .ucode = 0x10,
> + },
> + { .uname = "DCT1_WRITE_TO_READ_TURNAROUND",
> + .udesc = "DCT1 Write to read turnaround",
> + .ucode = 0x20,
> + },
> + { .uname = "ALL",
> + .udesc = "All sub-events selected",
> + .ucode = 0x3f,
> + .uflags = AMD64_FL_NCOMBO | AMD64_FL_DFL,
> + },
> +};
> +
> +static const amd64_umask_t amd64_fam15h_memory_controller_bypass_counter_saturation[]={
> + { .uname = "MEMORY_CONTROLLER_HIGH_PRIORITY_BYPASS",
> + .udesc = "Memory controller high priority bypass",
> + .ucode = 0x1,
> + },
> + { .uname = "MEMORY_CONTROLLER_MEDIUM_PRIORITY_BYPASS",
> + .udesc = "Memory controller medium priority bypass",
> + .ucode = 0x2,
> + },
> + { .uname = "DCT0_DCQ_BYPASS",
> + .udesc = "DCT0 DCQ bypass",
> + .ucode = 0x4,
> + },
> + { .uname = "DCT1_DCQ_BYPASS",
> + .udesc = "DCT1 DCQ bypass",
> + .ucode = 0x8,
> + },
> + { .uname = "ALL",
> + .udesc = "All sub-events selected",
> + .ucode = 0xf,
> + .uflags = AMD64_FL_NCOMBO | AMD64_FL_DFL,
> + },
> +};
> +
> static const amd64_entry_t amd64_fam15h_pe[]={
> { .name = "DISPATCHED_FPU_OPS",
> .desc = "FPU Pipe Assignment",
> @@ -1256,4 +1376,39 @@ static const amd64_entry_t amd64_fam15h_pe[]={
> .modmsk = AMD64_FAM15H_ATTRS,
> .code = 0x1d8,
> },
> +{ .name = "DRAM_ACCESSES",
> + .desc = "DRAM Accesses",
> + .code = 0xe0,
> + .numasks = LIBPFM_ARRAY_SIZE(amd64_fam15h_dram_accesses),
> + .ngrp = 1,
> + .umasks = amd64_fam15h_dram_accesses,
> +},
> +{ .name = "DRAM_CONTROLLER_PAGE_TABLE_OVERFLOWS",
> + .desc = "DRAM Controller Page Table Overflows",
> + .code = 0xe1,
> + .numasks = LIBPFM_ARRAY_SIZE(amd64_fam15h_dram_controller_page_table_overflows),
> + .ngrp = 1,
> + .umasks = amd64_fam15h_dram_controller_page_table_overflows,
> +},
> +{ .name = "MEMORY_CONTROLLER_DRAM_COMMAND_SLOTS_MISSED",
> + .desc = "Memory Controller DRAM Command Slots Missed",
> + .code = 0xe2,
> + .numasks = LIBPFM_ARRAY_SIZE(amd64_fam15h_memory_controller_dram_command_slots_missed),
> + .ngrp = 1,
> + .umasks = amd64_fam15h_memory_controller_dram_command_slots_missed,
> +},
> +{ .name = "MEMORY_CONTROLLER_TURNAROUNDS",
> + .desc = "Memory Controller Turnarounds",
> + .code = 0xe3,
> + .numasks = LIBPFM_ARRAY_SIZE(amd64_fam15h_memory_controller_turnarounds),
> + .ngrp = 1,
> + .umasks = amd64_fam15h_memory_controller_turnarounds,
> +},
> +{ .name = "MEMORY_CONTROLLER_BYPASS_COUNTER_SATURATION",
> + .desc = "Memory Controller Bypass Counter Saturation",
> + .code = 0xe4,
> + .numasks = LIBPFM_ARRAY_SIZE(amd64_fam15h_memory_controller_bypass_counter_saturation),
> + .ngrp = 1,
> + .umasks = amd64_fam15h_memory_controller_bypass_counter_saturation,
> +},
> };
> --
> 1.7.9.5
>
>
>
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