From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B9054C433FE for ; Mon, 14 Nov 2022 09:07:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235970AbiKNJHi (ORCPT ); Mon, 14 Nov 2022 04:07:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47358 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237098AbiKNJHT (ORCPT ); Mon, 14 Nov 2022 04:07:19 -0500 Received: from mail-ot1-x32e.google.com (mail-ot1-x32e.google.com [IPv6:2607:f8b0:4864:20::32e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D16025C9 for ; Mon, 14 Nov 2022 01:06:03 -0800 (PST) Received: by mail-ot1-x32e.google.com with SMTP id d26-20020a05683018fa00b0066ab705617aso6267484otf.13 for ; Mon, 14 Nov 2022 01:06:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=sKw1kYqmjYasEn7Y3COewOUZsq0MAu8mFPfBLKwkoSc=; b=O9JaNmH2blWNsRYkIQF/AKIekwf42J2n7+hgMUvgMgw6SHjgjwEDFQJj1w/l/keZD8 +W6MJqzZDlgwdFEKkUb4eIiglnhy0mZbiCltCvR/idsnixQUFq1MFOHxVinExoHjaPYR OvZ0I0xj1vuBQG3zMHvLGWQIpnxwHLA54d74P96ijpomxVbppmZxnIzX2FhcptuQcYtz xjB5GyV/ZS2RI9W7aP7hRm2y84K+X6Fb6Ru/wm6UQaqd3oSgyCDq2KrEzVaJpeWiCT7H P9epcA2se9ZJ4vCBl1/9/PtBcRC87R8FtfZwospjb34v8N3Eb1zIJmf5r/Biz980Lm7G AjYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=sKw1kYqmjYasEn7Y3COewOUZsq0MAu8mFPfBLKwkoSc=; b=PmNQ3PKK7egTzZJRw2HEbWtPz6DKM3nSmexDKOMWVLwpDODBL/U8xrdtvRx6LSai9q b5z5PIc8Owekr9stYwA5GmhyA/qmJJNVVf5RmR9amZwoQ0gk4XlSQ0xks72xz5S6d0x5 jnbDcWl44uFti8j9107z9pe1NgNAWLZOly1DUXqU3W8HfLo5uUGXMRwgz6eUIPhjUW7z 3w5lfdpkWVgorjN+KsF8/WXenSbtH+rhjqF8UrVK/eSzD7hJ+6mXLbYCVo0HiUDl42+N G4tVDODdOPfrXr1CAgi8yM9Dl5izo5j3Fbk3GLebmRi6QhgWaq1k+rZ/9H5rR/bAkHKa nCdw== X-Gm-Message-State: ANoB5pnWa1gSlLSKIKzcL38jPlOeUNsaXOya8Vi6sXvBjj84s8guryli FcatW1SQ9O/cDRHtHXNFj7vCWA== X-Google-Smtp-Source: AA0mqf4hsNss0/ZP2F7hDgRFMVLQAV1D2MFi3QBya1k67HNn04mBI2V7miEgbFgtUa5MsT7XD4wfbQ== X-Received: by 2002:a05:6830:2812:b0:637:1464:cebf with SMTP id w18-20020a056830281200b006371464cebfmr5924869otu.100.1668416762681; Mon, 14 Nov 2022 01:06:02 -0800 (PST) Received: from anup-ubuntu64-vm.. ([103.97.165.210]) by smtp.gmail.com with ESMTPSA id n2-20020aca2402000000b00354948e04e4sm3432939oic.2.2022.11.14.01.05.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Nov 2022 01:06:02 -0800 (PST) From: Anup Patel To: Palmer Dabbelt , Paul Walmsley Cc: Atish Patra , Heiko Stuebner , Arnd Bergmann , Anup Patel , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Anup Patel Subject: [PATCH v6 0/3] Add PMEM support for RISC-V Date: Mon, 14 Nov 2022 14:35:33 +0530 Message-Id: <20221114090536.1662624-1-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The Linux NVDIMM PEM drivers require arch support to map and access the persistent memory device. This series adds RISC-V PMEM support using recently added Svpbmt and Zicbom support. First two patches are fixes and remaining two patches add the required PMEM support for Linux RISC-V. These patches can also be found in riscv_pmem_v6 branch at: https://github.com/avpatel/linux.git Changes since v5: - Rebased on Linux-6.1-rc5 - Directly add pmem.o in obj-y of PATCH3 - Dropped PATCH1 since this is already merged. Changes since v4: - Simplify PATCH2 by implementing RISC-V specific arch_memremap_wb() Changes since v3: - Pickup correct version of Drew's patch as PATCH1 Changes since v2: - Rebased on Linux-6.1-rc1 - Replaced PATCH1 with the patch proposed by Drew Changes since v1: - Fix error reported by test bot https://lore.kernel.org/all/202208272028.IwrNZ0Ur-lkp@intel.com/ Anup Patel (3): RISC-V: Fix MEMREMAP_WB for systems with Svpbmt RISC-V: Implement arch specific PMEM APIs RISC-V: Enable PMEM drivers arch/riscv/Kconfig | 1 + arch/riscv/configs/defconfig | 1 + arch/riscv/include/asm/io.h | 5 +++++ arch/riscv/mm/Makefile | 1 + arch/riscv/mm/pmem.c | 21 +++++++++++++++++++++ 5 files changed, 29 insertions(+) create mode 100644 arch/riscv/mm/pmem.c -- 2.34.1