public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: "Moger, Babu" <babu.moger@amd.com>
To: Reinette Chatre <reinette.chatre@intel.com>,
	tony.luck@intel.com, peternewman@google.com
Cc: corbet@lwn.net, tglx@linutronix.de, mingo@redhat.com,
	bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org,
	hpa@zytor.com, paulmck@kernel.org, akpm@linux-foundation.org,
	thuth@redhat.com, rostedt@goodmis.org, ardb@kernel.org,
	gregkh@linuxfoundation.org, daniel.sneddon@linux.intel.com,
	jpoimboe@kernel.org, alexandre.chartre@oracle.com,
	pawan.kumar.gupta@linux.intel.com, thomas.lendacky@amd.com,
	perry.yuan@amd.com, seanjc@google.com, kai.huang@intel.com,
	xiaoyao.li@intel.com, kan.liang@linux.intel.com,
	xin3.li@intel.com, ebiggers@google.com, xin@zytor.com,
	sohil.mehta@intel.com, andrew.cooper3@citrix.com,
	mario.limonciello@amd.com, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, maciej.wieczor-retman@intel.com,
	eranian@google.com
Subject: Re: [PATCH v12 12/26] x86/resctrl: Add data structures and definitions for ABMC assignment
Date: Mon, 14 Apr 2025 15:30:06 -0500	[thread overview]
Message-ID: <0d8cb80a-d34e-461a-9864-cadd5497bcf1@amd.com> (raw)
In-Reply-To: <cb71665f-a732-4fd9-90cf-213f5609e872@intel.com>

Hi Reinette,

On 4/11/25 16:01, Reinette Chatre wrote:
> Hi Babu,
> 
> On 4/3/25 5:18 PM, Babu Moger wrote:
>> The ABMC feature provides an option to the user to assign a hardware
>> counter to an RMID, event pair and monitor the bandwidth as long as the
>> counter is assigned. The bandwidth events will be tracked by the hardware
>> until the user changes the configuration. Each resctrl group can configure
>> maximum two counters, one for total event and one for local event.
>>
>> The ABMC feature implements an MSR L3_QOS_ABMC_CFG (C000_03FDh).
>> Configuration is done by setting the counter id, bandwidth source (RMID)
>> and bandwidth configuration supported by BMEC (Bandwidth Monitoring Event
>> Configuration).
> 
> Apart from the BMEC optimization in patch #1 and patch #2 this is the
> first and only mention of BMEC dependency I see in this series while I do
> not see implementation support for this. What am I missing?
> 

My mistake. I should have corrected it.  How about this?

"The ABMC feature implements an MSR L3_QOS_ABMC_CFG (C000_03FDh).
ABMC counter assignment is done by setting the counter id, bandwidth
source (RMID) and bandwidth configuration. Users will have the option to
change the bandwidth configuration using resctrl interface which will be
introduced later in the series."

-- 
Thanks
Babu Moger

  reply	other threads:[~2025-04-14 20:30 UTC|newest]

Thread overview: 80+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-04  0:18 [PATCH v12 00/26] x86/resctrl : Support AMD Assignable Bandwidth Monitoring Counters (ABMC) Babu Moger
2025-04-04  0:18 ` [PATCH v12 01/26] x86/resctrl: Introduce mbm_total_cfg and mbm_local_cfg in struct rdt_hw_mon_domain Babu Moger
2025-04-11 20:49   ` Reinette Chatre
2025-04-14 15:56     ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 02/26] x86/resctrl: Remove MSR reading of event configuration value Babu Moger
2025-04-11 20:50   ` Reinette Chatre
2025-04-14 15:57     ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 03/26] x86/cpufeatures: Add support for Assignable Bandwidth Monitoring Counters (ABMC) Babu Moger
2025-04-11 20:52   ` Reinette Chatre
2025-04-14 17:48     ` Moger, Babu
2025-04-15 16:09       ` Reinette Chatre
2025-04-15 19:43         ` Moger, Babu
2025-04-16 16:08           ` Reinette Chatre
2025-04-17 14:27             ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 04/26] x86/resctrl: Add ABMC feature in the command line options Babu Moger
2025-04-04  0:18 ` [PATCH v12 05/26] x86/resctrl: Consolidate monitoring related data from rdt_resource Babu Moger
2025-04-04  0:18 ` [PATCH v12 06/26] x86/resctrl: Detect Assignable Bandwidth Monitoring feature details Babu Moger
2025-04-04  0:18 ` [PATCH v12 07/26] x86/resctrl: Add support to enable/disable AMD ABMC feature Babu Moger
2025-04-04  0:18 ` [PATCH v12 08/26] x86/resctrl: Introduce the interface to display monitor mode Babu Moger
2025-04-11 20:56   ` Reinette Chatre
2025-04-14 19:52     ` Moger, Babu
2025-04-15 16:22       ` Reinette Chatre
2025-04-16 14:05         ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 09/26] x86/resctrl: Introduce interface to display number of monitoring counters Babu Moger
2025-04-11 21:01   ` Reinette Chatre
2025-04-14 20:12     ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 10/26] x86/resctrl: Introduce mbm_cntr_cfg to track assignable counters at domain Babu Moger
2025-04-04  0:18 ` [PATCH v12 11/26] x86/resctrl: Introduce interface to display number of free MBM counters Babu Moger
2025-04-04  0:18 ` [PATCH v12 12/26] x86/resctrl: Add data structures and definitions for ABMC assignment Babu Moger
2025-04-11 21:01   ` Reinette Chatre
2025-04-14 20:30     ` Moger, Babu [this message]
2025-04-15 16:30       ` Reinette Chatre
2025-04-16 15:43         ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 13/26] x86/resctrl: Implement resctrl_arch_config_cntr() to assign a counter with ABMC Babu Moger
2025-04-11 21:02   ` Reinette Chatre
2025-04-14 20:51     ` Moger, Babu
2025-04-15 16:38       ` Reinette Chatre
2025-04-16 15:51         ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 14/26] x86/resctrl: Add the functionality to assign MBM events Babu Moger
2025-04-11 21:04   ` Reinette Chatre
2025-04-15 14:20     ` Moger, Babu
2025-04-15 16:53       ` Reinette Chatre
2025-04-16 17:09         ` Moger, Babu
2025-04-16 17:55           ` Luck, Tony
2025-04-16 18:17             ` Moger, Babu
2025-04-16 19:02           ` Reinette Chatre
2025-04-16 19:29             ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 15/26] x86/resctrl: Add the functionality to unassign " Babu Moger
2025-04-04  0:18 ` [PATCH v12 16/26] x86/resctrl: Report 'Unassigned' for MBM events in mbm_cntr_assign mode Babu Moger
2025-04-11 21:08   ` Reinette Chatre
2025-04-15 15:00     ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 17/26] x86/resctrl: Add the support for reading ABMC counters Babu Moger
2025-04-11 21:21   ` Reinette Chatre
2025-04-15 16:41     ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 18/26] x86/resctrl: Add default MBM event configurations for mbm_cntr_assign mode Babu Moger
2025-04-11 21:44   ` Reinette Chatre
2025-04-15 18:48     ` Moger, Babu
2025-04-15 19:25       ` Luck, Tony
2025-04-16 16:21         ` Reinette Chatre
2025-04-16 17:26           ` Moger, Babu
2025-04-16 16:18       ` Reinette Chatre
2025-04-16 17:27         ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 19/26] x86/resctrl: Add event configuration directory under info/L3_MON/ Babu Moger
2025-04-11 22:04   ` Reinette Chatre
2025-04-15 20:29     ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 20/26] x86/resctrl: Provide interface to update the event configurations Babu Moger
2025-04-11 22:07   ` Reinette Chatre
2025-04-15 20:37     ` Moger, Babu
2025-04-16 18:52       ` Reinette Chatre
2025-04-17 14:34         ` Moger, Babu
2025-04-17 15:09           ` Reinette Chatre
2025-04-17 20:19             ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 21/26] x86/resctrl: Introduce mbm_assign_on_mkdir to configure assignments Babu Moger
2025-04-11 22:08   ` Reinette Chatre
2025-04-15 20:39     ` Moger, Babu
2025-04-04  0:18 ` [PATCH v12 22/26] x86/resctrl: Auto assign/unassign counters when mbm_cntr_assign is enabled Babu Moger
2025-04-04  0:18 ` [PATCH v12 23/26] x86/resctrl: Introduce mbm_L3_assignments to list assignments in a group Babu Moger
2025-04-04  0:18 ` [PATCH v12 24/26] x86/resctrl: Introduce the interface to modify " Babu Moger
2025-04-04  0:18 ` [PATCH v12 25/26] x86/resctrl: Introduce the interface to switch between monitor modes Babu Moger
2025-04-04  0:18 ` [PATCH v12 26/26] x86/resctrl: Configure mbm_cntr_assign mode if supported Babu Moger

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=0d8cb80a-d34e-461a-9864-cadd5497bcf1@amd.com \
    --to=babu.moger@amd.com \
    --cc=akpm@linux-foundation.org \
    --cc=alexandre.chartre@oracle.com \
    --cc=andrew.cooper3@citrix.com \
    --cc=ardb@kernel.org \
    --cc=bp@alien8.de \
    --cc=corbet@lwn.net \
    --cc=daniel.sneddon@linux.intel.com \
    --cc=dave.hansen@linux.intel.com \
    --cc=ebiggers@google.com \
    --cc=eranian@google.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=hpa@zytor.com \
    --cc=jpoimboe@kernel.org \
    --cc=kai.huang@intel.com \
    --cc=kan.liang@linux.intel.com \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=maciej.wieczor-retman@intel.com \
    --cc=mario.limonciello@amd.com \
    --cc=mingo@redhat.com \
    --cc=paulmck@kernel.org \
    --cc=pawan.kumar.gupta@linux.intel.com \
    --cc=perry.yuan@amd.com \
    --cc=peternewman@google.com \
    --cc=reinette.chatre@intel.com \
    --cc=rostedt@goodmis.org \
    --cc=seanjc@google.com \
    --cc=sohil.mehta@intel.com \
    --cc=tglx@linutronix.de \
    --cc=thomas.lendacky@amd.com \
    --cc=thuth@redhat.com \
    --cc=tony.luck@intel.com \
    --cc=x86@kernel.org \
    --cc=xiaoyao.li@intel.com \
    --cc=xin3.li@intel.com \
    --cc=xin@zytor.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox