From nobody Mon Feb 9 21:22:00 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F269133BBD8; Tue, 20 Jan 2026 04:15:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768882521; cv=none; b=OBHBQFYLi2Z3bn1Ev3NV1uf1UeD4IaVSk4Cm0uGvbKoobn2cqCm162/tuLXJFRe51gcdn+MrrCB8E23VElB0NQbEKYdtXoURrjpI8cSfQ1xoLIrT+wCYle35csOexEHQanu8ayNWkP8Xpvol4M9l4LjVULjDqwsw9U2P7+Qpbgs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768882521; c=relaxed/simple; bh=W0zogC96arTBm1Kk9wlCZRwh/gtmVd8rFFkcBWq21X8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To; b=bMuJQ3uDwIknN2TzkEQeooy9Zata93hwBXDlvHDG9K4oUgO53BQ7NcMWuRbIW7qAk8XpoLGlppuFdvjt+lzcJxksdTkFCD3mV8NyJLxCyCtBFrEjUjEsdi/FK1lHg4ynrJO9MYGL3gRsScSGQdL8FzeA3Z6q2gOrsV3bZPQdLJM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=iTqecJFg; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="iTqecJFg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D3530C2BC86; Tue, 20 Jan 2026 04:15:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768882520; bh=W0zogC96arTBm1Kk9wlCZRwh/gtmVd8rFFkcBWq21X8=; h=From:Date:Subject:References:In-Reply-To:To:From; b=iTqecJFgy7DP7NJEXOG0D+7xVxQpbpFr7ExRdsq8hnn7jzrAeapDKTeemFT3VCg/k ugjrp/u0Bq74wcUnOJUUJDcU/5a5RK4B8FbgUzuMPibkq8zvqnHugbf7U2rS35INK7 NG+/+r+PO4JCWAVPXmNRcTNDDXoV075Bv6Ychxyb3DfobiKFZby2PIIoGPBU0PrPU4 Te++cye6IHxqeETHYapq1519jlMVONamWiWWqf5H1+JHRkrDxfErpbmz3FNwPOA0es difE0Lh3wNUtWpdgi9creZ0DynzBJJzi/hC0O2KBFksYqPMzZXjDtFKUBfVcX//pEs vkj6bwVoi0jxw== From: Drew Fustini Date: Mon, 19 Jan 2026 20:14:43 -0800 Subject: [PATCH RFC 06/19] RISC-V: QoS: define CBQRI resctrl resources and domains Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260119-ssqosid-cbqri-v1-6-aa2a75153832@kernel.org> References: <20260119-ssqosid-cbqri-v1-0-aa2a75153832@kernel.org> In-Reply-To: <20260119-ssqosid-cbqri-v1-0-aa2a75153832@kernel.org> To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , =?utf-8?q?Radim_Kr=C4=8Dm=C3=A1=C5=99?= , Samuel Holland , Adrien Ricciardi , Nicolas Pitre , =?utf-8?q?Kornel_Dul=C4=99ba?= , Atish Patra , Atish Kumar Patra , Vasudevan Srinivasan , Ved Shanbhogue , yunhui cui , Chen Pei , Liu Zhiwei , Weiwei Li , guo.wenjia23@zte.com.cn, liu.qingtao2@zte.com.cn, Conor Dooley , Krzysztof Kozlowski , Rob Herring , Reinette Chatre , Tony Luck , Babu Moger , Peter Newman , Fenghua Yu , James Morse , Ben Horgan , Dave Martin , Drew Fustini , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, x86@kernel.org X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1672; i=fustini@kernel.org; h=from:subject:message-id; bh=W0zogC96arTBm1Kk9wlCZRwh/gtmVd8rFFkcBWq21X8=; b=owGbwMvMwCV2+43O4ZsaG3kYT6slMWTmMwZNSRLbqHRN41jHZ+f3/4p3tXBd8bolqeqnpzvxm PT5bVGHOkpZGMS4GGTFFFk2fci7sMQr9OuC+S+2wcxhZQIZwsDFKQATmbKf4X/dW63JwsGf3j5a fP2myTNf9SVGr/PNtfbaXnXlqD+wOSeD4a80d7iIif7v6rZ5c646TTr8151x7fm0ttCnv54I1Gf PE+UDAA== X-Developer-Key: i=fustini@kernel.org; a=openpgp; fpr=1B6F948213EA489734F3997035D5CD577C1E6010 Define data structures to encapsulate the resctrl resource and domain structures. Co-developed-by: Adrien Ricciardi Signed-off-by: Adrien Ricciardi [fustini: rebased on riscv/for-next] Signed-off-by: Drew Fustini --- arch/riscv/kernel/qos/internal.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/riscv/kernel/qos/internal.h b/arch/riscv/kernel/qos/inter= nal.h index ff2c7eff50be..c0402dd06cfa 100644 --- a/arch/riscv/kernel/qos/internal.h +++ b/arch/riscv/kernel/qos/internal.h @@ -65,6 +65,11 @@ #define CBQRI_BC_ALLOC_CTL_OP_READ_LIMIT 2 #define CBQRI_BC_ALLOC_CTL_STATUS_SUCCESS 1 =20 +int qos_resctrl_setup(void); +void qos_resctrl_exit(void); +int qos_resctrl_online_cpu(unsigned int cpu); +int qos_resctrl_offline_cpu(unsigned int cpu); + /* Capacity Controller hardware capabilities */ struct riscv_cbqri_capacity_caps { u16 ncblks; /* number of capacity blocks */ @@ -125,4 +130,26 @@ struct cbqri_controller { bool mon_capable; }; =20 +struct cbqri_resctrl_res { + struct rdt_resource resctrl_res; + struct cbqri_controller controller; + u32 max_rcid; + u32 max_mcid; +}; + +struct cbqri_resctrl_dom { + struct rdt_domain_hdr resctrl_dom_hdr; + struct rdt_ctrl_domain resctrl_ctrl_dom; + struct rdt_mon_domain resctrl_mon_dom; + u64 cbm; + u64 rbwb; + u64 *ctrl_val; + struct cbqri_controller *hw_ctrl; +}; + +struct cbqri_config { + u64 cbm; /* capacity block mask */ + u64 rbwb; /* reserved bandwidth blocks */ +}; + #endif /* _ASM_RISCV_QOS_INTERNAL_H */ --=20 2.43.0