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From: Drew Fustini <fustini@kernel.org>
To: Ben Horgan <ben.horgan@arm.com>
Cc: reinette.chatre@intel.com, Dave.Martin@arm.com,
	babu.moger@amd.com, bp@alien8.de, dave.hansen@linux.intel.com,
	fenghuay@nvidia.com, james.morse@arm.com,
	linux-kernel@vger.kernel.org, peternewman@google.com,
	tglx@linutronix.de, tony.luck@intel.com, x86@kernel.org,
	yu.c.chen@intel.com
Subject: Re: [RFC PATCH 0/3] Suggestions for cache scalar controls
Date: Tue, 22 Sep 2026 13:26:18 -0700	[thread overview]
Message-ID: <arLkancaSfFbe1_B@gen8> (raw)
In-Reply-To: <20260921135702.2874931-1-ben.horgan@arm.com>

On Mon, Sep 21, 2026 at 02:56:59PM +0100, Ben Horgan wrote:
> Hi Reinette,
> 
> I'm posting as a reply to your series to try and keep things together.
> These patches should just be taken as suggestions. The first two
> patches make the printing of the schema name simpler while keeping it
> out of the arch code. The last add support for scalar cache controls
> in the size file. I found these sufficient to add support for CMIN/CMAX
> on top of MPAM. I'll post these separately but if makes sense to you
> feel free to incorporate them in your PoC.

Thanks for posting as these help RISC-V too. CBQRI has minimum reserved
bandwidth and a shared bw weight but there is no throttle-based MB
control. This should fix the "Invalid MB value" for CBQRI.

I'll rebase the CBQRI support onto resctrl/controls_rfc_v2 and will try
these patches in Qemu. The CMIN/CMAX modelling on your branch is helpful
for CBQRI scalar controls.

Thanks,
Drew

      parent reply	other threads:[~2026-09-22 20:26 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-04  5:26 [RFC v2] arm,x86,fs/resctrl: Generic schema description Proof of Concept Reinette Chatre
2026-08-05 16:59 ` Ben Horgan
2026-08-05 23:57   ` Reinette Chatre
2026-08-06 17:04     ` Luck, Tony
2026-08-06 17:11       ` Reinette Chatre
2026-08-07 14:14         ` Moger, Babu
2026-08-07 15:35           ` Reinette Chatre
2026-08-07 18:33             ` Moger, Babu
2026-08-07 22:53               ` Reinette Chatre
2026-08-10 18:52                 ` Babu Moger
2026-08-11  4:06                   ` Reinette Chatre
2026-08-11 14:59                     ` Babu Moger
2026-08-11 15:30                       ` Reinette Chatre
2026-08-11 16:09                         ` Babu Moger
2026-08-24 14:40                 ` Ben Horgan
2026-08-24 18:07                   ` Reinette Chatre
2026-08-25 15:20                     ` Ben Horgan
2026-08-07 15:35           ` Chen, Yu C
2026-08-07 17:57             ` Moger, Babu
2026-08-10  2:05 ` Chen, Yu C
2026-08-10 15:53   ` Reinette Chatre
2026-08-10 17:23     ` Chen, Yu C
2026-08-10 18:09       ` Reinette Chatre
2026-08-11  3:49         ` Chen, Yu C
2026-08-13 13:59           ` Chen Yu
2026-08-13 15:19             ` Reinette Chatre
2026-08-18 16:02               ` Chen Yu
2026-08-18 17:10                 ` Reinette Chatre
2026-09-14  2:49         ` Chen Yu
2026-09-18 23:11           ` Reinette Chatre
2026-09-21  5:13             ` Chen, Yu C
2026-09-21 15:01               ` Reinette Chatre
2026-09-22  3:19                 ` Chen, Yu C
2026-09-21 16:21               ` Luck, Tony
2026-08-10  2:55 ` Fenghua Yu
2026-08-10  3:02   ` Chen, Yu C
2026-08-10  3:25     ` Fenghua Yu
2026-08-10  5:24       ` Chen, Yu C
2026-08-10 15:53   ` Reinette Chatre
2026-08-17 15:09     ` Reinette Chatre
2026-09-11 10:09     ` Ben Horgan
2026-09-18 22:47       ` Reinette Chatre
2026-09-21 10:22         ` Ben Horgan
2026-09-21 16:06           ` Reinette Chatre
2026-09-21 16:53             ` Ben Horgan
2026-09-23 15:28               ` Reinette Chatre
2026-09-21 13:56 ` [RFC PATCH 0/3] Suggestions for cache scalar controls Ben Horgan
2026-09-21 13:57   ` [RFC PATCH 1/3] fs/resctrl: Add schema_name to struct resctrl_ctrl Ben Horgan
2026-09-22 20:15     ` Drew Fustini
2026-09-23  9:05       ` Ben Horgan
2026-09-21 13:57   ` [RFC PATCH 2/3] fs/resctrl: Use correct schema name in bw_validate() last_cmd_status messages Ben Horgan
2026-09-21 13:57   ` [RFC PATCH 3/3] fs/resctrl: display size for scalar cache controls Ben Horgan
2026-09-21 14:08   ` [RFC PATCH 0/3] Suggestions for cache scalar controls Ben Horgan
2026-09-22 20:26   ` Drew Fustini [this message]

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