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From: Paul Walmsley <pjw@kernel.org>
To: Drew Fustini <fustini@kernel.org>
Cc: "Paul Walmsley" <pjw@kernel.org>,
	"Adrien Ricciardi" <aricciardi@baylibre.com>,
	"Alexandre Ghiti" <alex@ghiti.fr>,
	"Atish Kumar Patra" <atishp@rivosinc.com>,
	"Atish Patra" <atish.patra@linux.dev>,
	"Babu Moger" <babu.moger@amd.com>,
	"Ben Horgan" <ben.horgan@arm.com>,
	"Borislav Petkov" <bp@alien8.de>,
	"Chen Pei" <cp0613@linux.alibaba.com>,
	"Conor Dooley" <conor.dooley@microchip.com>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"Dave Martin" <Dave.Martin@arm.com>,
	"Fenghua Yu" <fenghuay@nvidia.com>,
	"Gong Shuai" <gong.shuai@sanechips.com.cn>,
	"Gong Shuai" <gsh517@gmail.com>,
	guo.wenjia23@zte.com.cn, "James Morse" <james.morse@arm.com>,
	"Kornel Dulęba" <mindal@semihalf.com>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	liu.qingtao2@zte.com.cn,
	"Liu Zhiwei" <zhiwei_liu@linux.alibaba.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Peter Newman" <peternewman@google.com>,
	"Radim Krčmář" <rkrcmar@ventanamicro.com>,
	"Reinette Chatre" <reinette.chatre@intel.com>,
	"Rob Herring" <robh@kernel.org>,
	"Samuel Holland" <samuel.holland@sifive.com>,
	"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
	"Tony Luck" <tony.luck@intel.com>,
	"Vasudevan Srinivasan" <vasu@rivosinc.com>,
	"Ved Shanbhogue" <ved@rivosinc.com>,
	"Weiwei Li" <liwei1518@gmail.com>,
	"yunhui cui" <cuiyunhui@bytedance.com>,
	"Zhanpeng Zhang" <zhangzhanpeng.jasper@bytedance.com>,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	x86@kernel.org, devicetree@vger.kernel.org,
	linux-rt-devel@lists.linux.dev, linux-doc@vger.kernel.org
Subject: Re: [PATCH v6 3/8] riscv: Add support for srmcfg CSR from Ssqosid extension
Date: Wed, 5 Aug 2026 19:21:02 -0600 (MDT)	[thread overview]
Message-ID: <c6d85325-7ba6-57f3-62e0-9ae843c98cf6@kernel.org> (raw)
In-Reply-To: <anOiJHmU24Lpbizi@x1>

On Wed, 5 Aug 2026, Drew Fustini wrote:

> Thanks for queuing this patch. It is okay to leave out the READ_ONCE()
> since only Patches 1-3 are being applied.
> 
> The READ_ONCE() is meant to pair with the WRITE_ONCE() in
> resctrl_arch_set_closid_rmid(), which comes in patch 5. RCID and MCID
> share the srmcfg csr, and resctrl can update thread.srmcfg from another
> hart while this task is switched in.

OK thanks, that makes sense; I've put it back. 


- Paul

WARNING: multiple messages have this Message-ID (diff)
From: Paul Walmsley <pjw@kernel.org>
To: Drew Fustini <fustini@kernel.org>
Cc: "Paul Walmsley" <pjw@kernel.org>,
	"Adrien Ricciardi" <aricciardi@baylibre.com>,
	"Alexandre Ghiti" <alex@ghiti.fr>,
	"Atish Kumar Patra" <atishp@rivosinc.com>,
	"Atish Patra" <atish.patra@linux.dev>,
	"Babu Moger" <babu.moger@amd.com>,
	"Ben Horgan" <ben.horgan@arm.com>,
	"Borislav Petkov" <bp@alien8.de>,
	"Chen Pei" <cp0613@linux.alibaba.com>,
	"Conor Dooley" <conor.dooley@microchip.com>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	"Dave Martin" <Dave.Martin@arm.com>,
	"Fenghua Yu" <fenghuay@nvidia.com>,
	"Gong Shuai" <gong.shuai@sanechips.com.cn>,
	"Gong Shuai" <gsh517@gmail.com>,
	guo.wenjia23@zte.com.cn, "James Morse" <james.morse@arm.com>,
	"Kornel Dulęba" <mindal@semihalf.com>,
	"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
	liu.qingtao2@zte.com.cn,
	"Liu Zhiwei" <zhiwei_liu@linux.alibaba.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Peter Newman" <peternewman@google.com>,
	"Radim Krčmář" <rkrcmar@ventanamicro.com>,
	"Reinette Chatre" <reinette.chatre@intel.com>,
	"Rob Herring" <robh@kernel.org>,
	"Samuel Holland" <samuel.holland@sifive.com>,
	"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
	"Tony Luck" <tony.luck@intel.com>,
	"Vasudevan Srinivasan" <vasu@rivosinc.com>,
	"Ved Shanbhogue" <ved@rivosinc.com>,
	"Weiwei Li" <liwei1518@gmail.com>,
	"yunhui cui" <cuiyunhui@bytedance.com>,
	"Zhanpeng Zhang" <zhangzhanpeng.jasper@bytedance.com>,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	x86@kernel.org, devicetree@vger.kernel.org,
	linux-rt-devel@lists.linux.dev, linux-doc@vger.kernel.org
Subject: Re: [PATCH v6 3/8] riscv: Add support for srmcfg CSR from Ssqosid extension
Date: Wed, 5 Aug 2026 19:21:02 -0600 (MDT)	[thread overview]
Message-ID: <c6d85325-7ba6-57f3-62e0-9ae843c98cf6@kernel.org> (raw)
In-Reply-To: <anOiJHmU24Lpbizi@x1>

On Wed, 5 Aug 2026, Drew Fustini wrote:

> Thanks for queuing this patch. It is okay to leave out the READ_ONCE()
> since only Patches 1-3 are being applied.
> 
> The READ_ONCE() is meant to pair with the WRITE_ONCE() in
> resctrl_arch_set_closid_rmid(), which comes in patch 5. RCID and MCID
> share the srmcfg csr, and resctrl can update thread.srmcfg from another
> hart while this task is switched in.

OK thanks, that makes sense; I've put it back. 


- Paul

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

  reply	other threads:[~2026-08-06  1:21 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-30  1:11 [PATCH v6 0/8] riscv: Add Ssqosid and initial CBQRI resctrl support Drew Fustini
2026-07-30  1:11 ` Drew Fustini
2026-07-30  1:11 ` [PATCH v6 1/8] dt-bindings: riscv: Add Ssqosid extension description Drew Fustini
2026-07-30  1:11   ` Drew Fustini
2026-08-05  2:46   ` Paul Walmsley
2026-08-05  2:46     ` Paul Walmsley
2026-07-30  1:11 ` [PATCH v6 2/8] riscv: Detect the Ssqosid extension Drew Fustini
2026-07-30  1:11   ` Drew Fustini
2026-08-05  2:47   ` Paul Walmsley
2026-08-05  2:47     ` Paul Walmsley
2026-08-05  3:40     ` Drew Fustini
2026-08-05  3:40       ` Drew Fustini
2026-07-30  1:11 ` [PATCH v6 3/8] riscv: Add support for srmcfg CSR from " Drew Fustini
2026-07-30  1:11   ` Drew Fustini
2026-07-30  1:22   ` sashiko-bot
2026-07-30  2:04     ` Drew Fustini
2026-07-30  2:04       ` Drew Fustini
2026-08-05 18:54   ` Paul Walmsley
2026-08-05 18:54     ` Paul Walmsley
2026-08-05 20:50     ` Drew Fustini
2026-08-05 20:50       ` Drew Fustini
2026-08-06  1:21       ` Paul Walmsley [this message]
2026-08-06  1:21         ` Paul Walmsley
2026-07-30  1:11 ` [PATCH v6 4/8] riscv_cbqri: Add capacity controller probe and allocation device ops Drew Fustini
2026-07-30  1:11   ` Drew Fustini
2026-07-30  1:11 ` [PATCH v6 5/8] riscv_cbqri: resctrl: Add cache allocation via capacity block mask Drew Fustini
2026-07-30  1:11   ` Drew Fustini
2026-07-30  1:27   ` sashiko-bot
2026-07-30  2:09     ` Drew Fustini
2026-07-30  2:09       ` Drew Fustini
2026-07-30  1:11 ` [PATCH v6 6/8] riscv: Enable resctrl filesystem for Ssqosid Drew Fustini
2026-07-30  1:11   ` Drew Fustini
2026-07-30  1:11 ` [PATCH v6 7/8] dt-bindings: riscv: Add binding for CBQRI controllers Drew Fustini
2026-07-30  1:11   ` Drew Fustini
2026-07-30  1:11 ` [PATCH v6 8/8] riscv_cbqri: Add CBQRI capacity allocation platform driver Drew Fustini
2026-07-30  1:11   ` Drew Fustini
2026-07-30  1:21   ` sashiko-bot
2026-07-30  2:11     ` Drew Fustini
2026-07-30  2:11       ` Drew Fustini
2026-08-05  3:00 ` [PATCH v6 0/8] riscv: Add Ssqosid and initial CBQRI resctrl support patchwork-bot+linux-riscv
2026-08-05  3:00   ` patchwork-bot+linux-riscv
2026-08-05 19:00 ` patchwork-bot+linux-riscv
2026-08-05 19:00   ` patchwork-bot+linux-riscv

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