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Message-ID: <52CDA054.4010700@amd.com>
Date: Wed, 8 Jan 2014 13:00:36 -0600
From: Suravee Suthikulanit <suravee.suthikulpanit@amd.com>
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To: <fweisbec@gmail.com>, <mingo@kernel.org>, <mingo@redhat.com>,
        <jacob.w.shin@gmail.com>
CC: <oleg@redhat.com>, <a.p.zijlstra@chello.nl>, <acme@ghostprotocols.net>,
        <hpa@zytor.com>, <linux-kernel@vger.kernel.org>,
        <sherry.hurwitz@amd.com>,
        Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: Re: [PATCH V6 0/4] perf/x86/amd: AMD Family 16h Data Breakpoint Extensions
References: <1386764906-1681-1-git-send-email-suravee.suthikulpanit@amd.com>
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Ping.  Are there any other concerns regarding this patch?

Thank you,

Suravee

On 12/11/2013 6:28 AM, suravee.suthikulpanit@amd.com wrote:
> From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
>
> The following patchset enables hardware breakpoint bp_len greater than
> HW_BREAKPOINT_LEN_8 on AMD Family 16h and later.
>
>    $ perf stat -e mem:0x1000/16:w a.out
>                              ^^
>                              bp_len
>
> This will count writes to [0x1000 ~ 0x1010)
>
> V6:
> * Minor clean up in patch 1 and 2 based on comment from Frederic and Oleg.
> * Split out changes in patch1 into patch4 per Frederic request.
>
> V5:
> * Rebase onto 3.12.0-rc3.
> * Modify the tools/perf/util/parse-events.y due to change in
>    parse_events_add_breakpoint().
>
> V4:
> Even more per Oleg's suggestion:
> * Further simplify info->len and info->mask setting switch statement
>
> V3:
> More per Oleg's suggestion:
> * Use already existing bp_len instead of changing userland API and
>    in kernel turn bp_len into proper AMD hardware breakpoint address
>    mask.
>
> V2:
> Per Oleg's suggestions:
> * Moved testing of bp_addr_mask to validate_hw_breakpoint()
> * Changed perf tool syntax to mem:<addr>[/addr_mask][:access]
>
> Jacob Shin (4):
>    perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN_8
>    perf tools: allow user to specify hardware breakpoint bp_len
>    perf tools: add hardware breakpoint bp_len test cases
>    perf/x86: Remove get_hbp_len and replace with bp_len
>
>   arch/x86/include/asm/cpufeature.h        |  2 ++
>   arch/x86/include/asm/debugreg.h          |  5 +++
>   arch/x86/include/asm/hw_breakpoint.h     |  1 +
>   arch/x86/include/uapi/asm/msr-index.h    |  4 +++
>   arch/x86/kernel/cpu/amd.c                | 19 +++++++++++
>   arch/x86/kernel/hw_breakpoint.c          | 45 ++++++++++----------------
>   tools/perf/Documentation/perf-record.txt |  7 ++--
>   tools/perf/tests/parse-events.c          | 55 ++++++++++++++++++++++++++++++++
>   tools/perf/util/parse-events.c           | 21 ++++++------
>   tools/perf/util/parse-events.h           |  2 +-
>   tools/perf/util/parse-events.l           |  1 +
>   tools/perf/util/parse-events.y           | 26 +++++++++++++--
>   12 files changed, 145 insertions(+), 43 deletions(-)
>


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