From: Reinette Chatre <reinette.chatre@intel.com>
To: Babu Moger <babu.moger@amd.com>, <corbet@lwn.net>,
<tony.luck@intel.com>, <james.morse@arm.com>,
<tglx@linutronix.de>, <mingo@redhat.com>, <bp@alien8.de>,
<dave.hansen@linux.intel.com>
Cc: <Dave.Martin@arm.com>, <x86@kernel.org>, <hpa@zytor.com>,
<akpm@linux-foundation.org>, <paulmck@kernel.org>,
<rostedt@goodmis.org>, <Neeraj.Upadhyay@amd.com>,
<david@redhat.com>, <arnd@arndb.de>, <fvdl@google.com>,
<seanjc@google.com>, <jpoimboe@kernel.org>,
<pawan.kumar.gupta@linux.intel.com>, <xin@zytor.com>,
<manali.shukla@amd.com>, <tao1.su@linux.intel.com>,
<sohil.mehta@intel.com>, <kai.huang@intel.com>,
<xiaoyao.li@intel.com>, <peterz@infradead.org>,
<xin3.li@intel.com>, <kan.liang@linux.intel.com>,
<mario.limonciello@amd.com>, <thomas.lendacky@amd.com>,
<perry.yuan@amd.com>, <gautham.shenoy@amd.com>,
<chang.seok.bae@intel.com>, <linux-doc@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <peternewman@google.com>,
<eranian@google.com>
Subject: Re: [PATCH v15 09/34] x86/resctrl: Add support to enable/disable AMD ABMC feature
Date: Thu, 17 Jul 2025 11:46:08 -0700 [thread overview]
Message-ID: <259c8d15-1af0-49d1-b202-d68ef2a42cee@intel.com> (raw)
In-Reply-To: <1dd845e0cc1d7a771da1afdf65e799e4fde6b5ed.1752013061.git.babu.moger@amd.com>
Hi Babu,
On 7/8/25 3:17 PM, Babu Moger wrote:
> Add the functionality to enable/disable AMD ABMC feature.
>
> AMD ABMC feature is enabled by setting enabled bit(0) in MSR
> L3_QOS_EXT_CFG. When the state of ABMC is changed, the MSR needs
> to be updated on all the logical processors in the QOS Domain.
>
> Hardware counters will reset when ABMC state is changed.
>
> The ABMC feature details are documented in APM listed below [1].
> [1] AMD64 Architecture Programmer's Manual Volume 2: System Programming
> Publication # 24593 Revision 3.41 section 19.3.3.3 Assignable Bandwidth
> Monitoring (ABMC).
>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=206537
> Signed-off-by: Babu Moger <babu.moger@amd.com>
> ---
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Reinette
next prev parent reply other threads:[~2025-07-17 18:46 UTC|newest]
Thread overview: 98+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-08 22:17 [PATCH v15 00/34] fs,x86/resctrl: Support AMD Assignable Bandwidth Monitoring Counters (ABMC) Babu Moger
2025-07-08 22:17 ` [PATCH v15 01/34] x86,fs/resctrl: Consolidate monitor event descriptions Babu Moger
2025-07-17 18:43 ` Reinette Chatre
2025-07-18 14:19 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 02/34] x86,fs/resctrl: Replace architecture event enabled checks Babu Moger
2025-07-08 22:17 ` [PATCH v15 03/34] x86/resctrl: Remove 'rdt_mon_features' global variable Babu Moger
2025-07-08 22:17 ` [PATCH v15 04/34] x86,fs/resctrl: Prepare for more monitor events Babu Moger
2025-07-08 22:17 ` [PATCH v15 05/34] x86/cpufeatures: Add support for Assignable Bandwidth Monitoring Counters (ABMC) Babu Moger
2025-07-15 11:47 ` Peter Newman
2025-07-15 14:16 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 06/34] x86/resctrl: Add ABMC feature in the command line options Babu Moger
2025-07-17 18:44 ` Reinette Chatre
2025-07-08 22:17 ` [PATCH v15 07/34] x86,fs/resctrl: Consolidate monitoring related data from rdt_resource Babu Moger
2025-07-17 18:44 ` Reinette Chatre
2025-07-08 22:17 ` [PATCH v15 08/34] x86,fs/resctrl: Detect Assignable Bandwidth Monitoring feature details Babu Moger
2025-07-15 16:26 ` Reinette Chatre
2025-07-15 16:53 ` Moger, Babu
2025-07-17 18:45 ` Reinette Chatre
2025-07-21 15:20 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 09/34] x86/resctrl: Add support to enable/disable AMD ABMC feature Babu Moger
2025-07-17 18:46 ` Reinette Chatre [this message]
2025-07-08 22:17 ` [PATCH v15 10/34] fs/resctrl: Introduce the interface to display monitoring modes Babu Moger
2025-07-17 18:46 ` Reinette Chatre
2025-07-08 22:17 ` [PATCH v15 11/34] fs/resctrl: Add resctrl file to display number of assignable counters Babu Moger
2025-07-17 18:46 ` Reinette Chatre
2025-07-08 22:17 ` [PATCH v15 12/34] fs/resctrl: Introduce mbm_cntr_cfg to track assignable counters per domain Babu Moger
2025-07-17 18:46 ` Reinette Chatre
2025-07-08 22:17 ` [PATCH v15 13/34] fs/resctrl: Introduce interface to display number of free MBM counters Babu Moger
2025-07-17 18:47 ` Reinette Chatre
2025-07-08 22:17 ` [PATCH v15 14/34] x86/resctrl: Add data structures and definitions for ABMC assignment Babu Moger
2025-07-17 18:47 ` Reinette Chatre
2025-07-08 22:17 ` [PATCH v15 15/34] fs/resctrl: Introduce event configuration field in struct mon_evt Babu Moger
2025-07-17 18:47 ` Reinette Chatre
2025-07-08 22:17 ` [PATCH v15 16/34] x86,fs/resctrl: Implement resctrl_arch_config_cntr() to assign a counter with ABMC Babu Moger
2025-07-17 18:49 ` Reinette Chatre
2025-07-21 17:40 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 17/34] fs/resctrl: Add the functionality to assign MBM events Babu Moger
2025-07-18 3:47 ` Reinette Chatre
2025-07-21 19:54 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 18/34] fs/resctrl: Add the functionality to unassign " Babu Moger
2025-07-18 3:48 ` Reinette Chatre
2025-07-21 20:21 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 19/34] fs/resctrl: Pass struct rdtgroup instead of individual members Babu Moger
2025-07-18 3:54 ` Reinette Chatre
2025-07-21 20:59 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 20/34] fs/resctrl: Introduce counter read, reset calls in mbm_event mode Babu Moger
2025-07-18 3:50 ` Reinette Chatre
2025-07-21 23:39 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 21/34] x86/resctrl: Refactor resctrl_arch_rmid_read() Babu Moger
2025-07-18 3:51 ` Reinette Chatre
2025-07-22 14:23 ` Moger, Babu
2025-07-22 14:56 ` Reinette Chatre
2025-07-22 15:25 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 22/34] x86/resctrl: Implement resctrl_arch_reset_cntr() and resctrl_arch_cntr_read() Babu Moger
2025-07-18 3:51 ` Reinette Chatre
2025-07-22 15:51 ` Moger, Babu
2025-07-22 23:27 ` Reinette Chatre
2025-07-23 16:48 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 23/34] fs/resctrl: Support counter read/reset with mbm_event assignment mode Babu Moger
2025-07-18 3:53 ` Reinette Chatre
2025-07-22 17:53 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 24/34] fs/resctrl: Report 'Unassigned' for MBM events in mbm_event mode Babu Moger
2025-07-18 3:53 ` Reinette Chatre
2025-07-22 18:15 ` Moger, Babu
2025-07-22 23:28 ` Reinette Chatre
2025-07-23 0:26 ` Moger, Babu
2025-07-23 2:05 ` Reinette Chatre
2025-07-23 13:14 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 25/34] fs/resctrl: Add definitions for MBM event configuration Babu Moger
2025-07-18 3:55 ` Reinette Chatre
2025-07-22 19:34 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 26/34] fs/resctrl: Add event configuration directory under info/L3_MON/ Babu Moger
2025-07-18 3:54 ` Reinette Chatre
2025-07-18 22:20 ` Reinette Chatre
2025-07-22 20:22 ` Moger, Babu
2025-07-22 20:11 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 27/34] fs/resctrl: Provide interface to update the event configurations Babu Moger
2025-07-18 3:55 ` Reinette Chatre
2025-07-22 22:55 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 28/34] fs/resctrl: Introduce mbm_assign_on_mkdir to enable assignments on mkdir Babu Moger
2025-07-15 13:53 ` Peter Newman
2025-07-15 14:18 ` Moger, Babu
2025-07-15 14:27 ` Reinette Chatre
2025-07-15 15:28 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 29/34] x86,fs/resctrl: Auto assign counters on mkdir and clean up on group removal Babu Moger
2025-07-18 3:56 ` Reinette Chatre
2025-07-22 23:59 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 30/34] fs/resctrl: Introduce mbm_L3_assignments to list assignments in a group Babu Moger
2025-07-08 22:17 ` [PATCH v15 31/34] fs/resctrl: Introduce the interface to modify " Babu Moger
2025-07-18 4:01 ` Reinette Chatre
2025-07-23 16:19 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 32/34] fs/resctrl: Disable BMEC event configuration when mbm_event mode is enabled Babu Moger
2025-07-18 4:02 ` Reinette Chatre
2025-07-23 17:30 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 33/34] fs/resctrl: Introduce the interface to switch between monitor modes Babu Moger
2025-07-18 4:03 ` Reinette Chatre
2025-07-23 18:50 ` Moger, Babu
2025-07-08 22:17 ` [PATCH v15 34/34] x86/resctrl: Configure mbm_event mode if supported Babu Moger
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