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Fri, 3 Jan 2020 04:13:42 +0000 From: Yash Shah To: robh+dt@kernel.org, mark.rutland@arm.com, paul.walmsley@sifive.com, palmer@dabbelt.com Cc: aou@eecs.berkeley.edu, bmeng.cn@gmail.com, green.wan@sifive.com, allison@lohutok.net, alexios.zavras@intel.com, gregkh@linuxfoundation.org, tglx@linutronix.de, bp@suse.de, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, sachin.ghadi@sifive.com, Yash Shah Subject: [PATCH v2 0/2] L2 ccache DT and cacheinfo support to read no. of L2 cache ways enabled Date: Fri, 3 Jan 2020 09:43:19 +0530 Message-Id: <1578024801-39039-1-git-send-email-yash.shah@sifive.com> X-Mailer: git-send-email 2.7.4 X-ClientProxiedBy: BM1PR0101CA0043.INDPRD01.PROD.OUTLOOK.COM (2603:1096:b00:1a::29) To CH2PR13MB3368.namprd13.prod.outlook.com (2603:10b6:610:2c::26) MIME-Version: 1.0 Received: from dhananjayk-PowerEdge-R620.open-silicon.com (114.143.65.226) by BM1PR0101CA0043.INDPRD01.PROD.OUTLOOK.COM (2603:1096:b00:1a::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2602.12 via Frontend Transport; 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X-Microsoft-Antispam-Message-Info: x27SO/YN/D1Jys8B7AnTZ44KSVH1C+1Hhx6siSHkgWju+QJ9jWM6IcH+qL5FZLEdEycol1Sgg/7xxXYKAswaMWcHSTVz5xdAwx9bdTPR+EAR9frluU4mYzQCegE+/CRbY258rXoeTh2bSNwYypJtK+RFuZkjtL+KckYZjeM/sSsS3r8m4aPaP4sBYaI3jo3vikZ8hex7cqSRZ/jjKHjWP2R4ISvrtt3wu26idOtCQNpAmX5FYxdLsW5p3T1wEQj49davMCsYJOqWiDWOXyuQHPQoTdYILlKBq3Ra2mws+NgqdKOO3IRdNLnl97U8MVz78mflKK6bLWHb1IkQ6yKY/8ttSCBStnerJHTW77JWkyTIT1jPnViFuq4ChQ4QYN5v/Z+CGWPl1fpZZWkkbQqseuwWN4hLlJAoLlaM4GfQRQVkZmorggxjCXDq8n7fPI6l X-OriginatorOrg: sifive.com X-MS-Exchange-CrossTenant-Network-Message-Id: e74f147d-eb60-4aad-2f82-08d790035175 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Jan 2020 04:13:42.6548 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 22f88e9d-ae0d-4ed9-b984-cdc9be1529f1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: +BOsII4CpAy71CVXIXhoe76S7ngdxw/SUSC9naQBkU/iQnNTmE4gAQLyvcs3jzbijwiihqw3pwIupyA35CM5hA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR13MB3799 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org The patchset includes the patch to implement a private attribute named "number_of_ways_enabled" in the cacheinfo framework. Reading this attribute returns the number of L2 cache ways enabled at runtime, The patchset also include the patch to add DT node for SiFive L2 cache controller. This patchset is based on Linux v5.5-rc3 and tested on HiFive Unleashed board. Changes in v2: - Rebase the series on v5.5-rc3 - Remove the reserved-memory node from DT Yash Shah (2): riscv: dts: Add DT support for SiFive L2 cache controller riscv: cacheinfo: Add support to determine no. of L2 cache way enabled arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 15 +++++++++++++++ arch/riscv/include/asm/sifive_l2_cache.h | 2 ++ arch/riscv/kernel/cacheinfo.c | 31 ++++++++++++++++++++++++++++++ drivers/soc/sifive/sifive_l2_cache.c | 5 +++++ 4 files changed, 53 insertions(+)