From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 95AB544BC87; Mon, 6 Jul 2026 23:06:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783379191; cv=none; b=Mw3L4tLvX07Qgqq09SJiYnFRbISoTLhzsmX992tR4VEnbGLmIl1585JigYjZC/pY5hZPsIpuNZKr6oWs+Evr7fA1JFqtcpblWLCaN71mNVQ/k7CToawKA6DxsWJjc1bIX6A7aSPatJ9oEB3drSNvcHXHR3azs40Bfye1cgZE+mw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783379191; c=relaxed/simple; bh=9IrDESLBODps6b/MrN1OK5NOij2ro1fCuRbGEvFirgg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=V2f8RhpB9lbf2YYnugmRMHpBdGo6EiCD2z71Vtmo3rk/qMH+JAgLEHQL7oJl6ty5o1lRleofEhxs+Iqh4khOZY9qR+MyPlbUWjR6OAeKrZAqbN3kL1ZaM85Ww3ZZp0wOT8TDPELyLaMVpAkhoeOxxaiBN/efhqbqiVvZg+umUA4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fb4H8rpC; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fb4H8rpC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1209A1F00ACF; Mon, 6 Jul 2026 23:06:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783379188; bh=COwVRmFiam0JgsBH5zSv6qcJkLMNhPBYvpYuXgJw4PU=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=fb4H8rpCX8pCcvUfoN+b0kMJJEq1jDp2dHUuLJfBBmeqhDTg3fDLLtRd8CCPHgrGM GCHMA8al9eYUszSqZ94fjzfIDRIhFXUi2zilYwESxbr8VSkY6PMBLI5zzGl3QOGXnl t+QjJq7VYo+MUmsJQzxWqQGHIkK7eWDhq1XSRQcMTUPffswUeJysxjJpeuyuq54FHT bn0xP+d6k/HuE1vEIjGPdvwGWkbiLYEHjOvG8hWfhagdAwHGdYihucHA2ZxWmWlqQ9 pc767/gncPvIgQIeiHNFH8citeb5Aw16O0sowqO/J2jsErU5dVasepEWyhBEXQaZry oX78Zjritc5ww== From: Drew Fustini Date: Mon, 06 Jul 2026 16:06:16 -0700 Subject: [PATCH v4 6/8] riscv: Enable resctrl filesystem for Ssqosid 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: 7bit Message-Id: <20260706-dfustini-atl-sc-cbqri-dt-v4-6-e75c20201d64@kernel.org> References: <20260706-dfustini-atl-sc-cbqri-dt-v4-0-e75c20201d64@kernel.org> In-Reply-To: <20260706-dfustini-atl-sc-cbqri-dt-v4-0-e75c20201d64@kernel.org> To: Adrien Ricciardi , Alexandre Ghiti , Atish Kumar Patra , Atish Patra , Babu Moger , Ben Horgan , Borislav Petkov , Chen Pei , Conor Dooley , Conor Dooley , Dave Hansen , Dave Martin , Fenghua Yu , Gong Shuai , Gong Shuai , guo.wenjia23@zte.com.cn, James Morse , =?utf-8?q?Kornel_Dul=C4=99ba?= , Krzysztof Kozlowski , liu.qingtao2@zte.com.cn, Liu Zhiwei , Palmer Dabbelt , Paul Walmsley , Peter Newman , =?utf-8?q?Radim_Kr=C4=8Dm=C3=A1=C5=99?= , Reinette Chatre , Rob Herring , Samuel Holland , Sebastian Andrzej Siewior , Tony Luck , Vasudevan Srinivasan , Ved Shanbhogue , Weiwei Li , yunhui cui , Drew Fustini Cc: 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 X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1394; i=fustini@kernel.org; h=from:subject:message-id; bh=9IrDESLBODps6b/MrN1OK5NOij2ro1fCuRbGEvFirgg=; b=owGbwMvMwCV2+43O4ZsaG3kYT6slMWT5mHz4yXm6NeKGY5Zm3kHpzO8Hg89MWbxYTzZk7gnR+ 9zvFZ/ld5SyMIhxMciKKbJs+pB3YYlX6NcF819sg5nDygQyhIGLUwAmMmEFI8PT5w95/pr3bI82 4/y2bMfK7DecE93mcvr8Er4j2/5jgUkGwz+T6duOXJssUxR3juGG4b00i80SLsdWsQtHdPAbGMi 7LGcEAA== X-Developer-Key: i=fustini@kernel.org; a=openpgp; fpr=1B6F948213EA489734F3997035D5CD577C1E6010 Make RISCV_CBQRI a user-selectable option (default y) that depends on RISCV_ISA_SSQOSID, rather than having RISCV_ISA_SSQOSID select it unconditionally. A user with Ssqosid hardware can now build a kernel without the CBQRI resctrl support if they do not want it, while the default keeps it enabled. RISCV_CBQRI selects ARCH_HAS_CPU_RESCTRL, which makes RESCTRL_FS available on RISC-V, since resctrl is only meaningful when the CBQRI core that backs it is built. The resctrl filesystem integration is gated separately by RISCV_CBQRI_RESCTRL_FS, a silent option that defaults to y when both RISCV_CBQRI and RESCTRL_FS are enabled. Enabling the resctrl filesystem itself stays a user choice via the standard fs/Kconfig MISC_FILESYSTEMS menu. Signed-off-by: Drew Fustini --- drivers/resctrl/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/resctrl/Kconfig b/drivers/resctrl/Kconfig index f8566c003d49..68b4124df396 100644 --- a/drivers/resctrl/Kconfig +++ b/drivers/resctrl/Kconfig @@ -33,6 +33,8 @@ config ARM64_MPAM_RESCTRL_FS menuconfig RISCV_CBQRI bool "RISC-V CBQRI support" depends on RISCV && RISCV_ISA_SSQOSID + select ARCH_HAS_CPU_RESCTRL + default y help Capacity and Bandwidth QoS Register Interface (CBQRI) support for RISC-V cache QoS resources. CBQRI exposes cache capacity -- 2.43.0