From patchwork Mon May 9 21:28:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Atish Kumar Patra X-Patchwork-Id: 12844080 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 88087C433F5 for ; Mon, 9 May 2022 21:31:55 +0000 (UTC) Received: from localhost ([::1]:60832 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1noAyw-0002tj-AL for qemu-devel@archiver.kernel.org; Mon, 09 May 2022 17:31:54 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58088) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1noAvk-0000XU-NB for qemu-devel@nongnu.org; Mon, 09 May 2022 17:28:37 -0400 Received: from mail-pj1-x102e.google.com ([2607:f8b0:4864:20::102e]:35480) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1noAvi-00018W-Mf for qemu-devel@nongnu.org; Mon, 09 May 2022 17:28:36 -0400 Received: by mail-pj1-x102e.google.com with SMTP id j10-20020a17090a94ca00b001dd2131159aso472586pjw.0 for ; Mon, 09 May 2022 14:28:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=rJEvylGX6XFsP6JM89wy/96G5JB+filiHmzriU7ed8Y=; b=zwrOiXwOffmx/W++WX6vbg2dvUqyl9y4sQiGLyuN8RZu9zC8mH4CLPch7hUXVz6EWE y7NOMnjBFb8JU3OVf50scQ41OgWnEb4Vzvg9qA32fuxsyoG4DstqIZY0t5qGOYRrJPrL Nr4/AWhFdNNQlCttH5oKK8QE3clym9294z5yXqcOccLDCirV2x/KyVhXAinZZqf9yRFM rWwcZi0nyDN78TkO0H1trvB8hIhfhGrru8lE+afaGr7+GzWXF4pnVVweI1JbC75aRJN6 oXtXk+FdJ0uynY+Q8kFa7iJoB75KXf+0j9AUF84Vu8oXZWv7GNHDgXWBXfKQ4h8jtfb7 RBVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=rJEvylGX6XFsP6JM89wy/96G5JB+filiHmzriU7ed8Y=; b=Xrmju5OyKIDY/edMAXKq0MyGl0pG31sWJbBhfbp5i+unssyRCpitNPvGsuND2QrNg8 zemHGullnfc4eGFDeN5C3HO9MuIyuGbRJsYG3K2LoICnIbPPce531k33U7MmbJ/4OwpU k06l6RYrAaEugd0NZq3U/IYmthK0qII0SHgbRKbiEYV7Q5EZehs8iw1GLcZr7Fa+H/wH ulqPFZkpvwqaToJ52fWpk5fFdrVkmwhu95HOuuqv01UgrBAfm4Vf2AoB5jPU0EGbAToE tlKZnSnsDI1OWGP+4ueYgbxhNPb1IhzcwSvbxNnWhnFt3QY1dBIXnO4H3alJWi45O88A DN+A== X-Gm-Message-State: AOAM5307B5rQBqTOK9x78mFjL3+363/tApLl31omkmLOnYhaOUnm0KkW OovnzwED9Qoa5DuEJmcmtpx0NrpzAb+WAQ== X-Google-Smtp-Source: ABdhPJwB1TJfOqkKL/E9r/Ci9qZ/FwfUTGHY+ANVi2OLOro+089DsvlLxjaIPRZWcu3cY6SK4RukOw== X-Received: by 2002:a17:902:9a42:b0:158:bf91:ecec with SMTP id x2-20020a1709029a4200b00158bf91ececmr17969506plv.115.1652131712517; Mon, 09 May 2022 14:28:32 -0700 (PDT) Received: from atishp.ba.rivosinc.com ([66.220.2.162]) by smtp.gmail.com with ESMTPSA id n89-20020a17090a5ae200b001cd4989fecfsm164509pji.27.2022.05.09.14.28.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 May 2022 14:28:31 -0700 (PDT) From: Atish Patra To: qemu-devel@nongnu.org Cc: Atish Patra , Alistair Francis , Bin Meng , Palmer Dabbelt , qemu-riscv@nongnu.org Subject: [PATCH v3 0/3] Implement Sstc extension Date: Mon, 9 May 2022 14:28:24 -0700 Message-Id: <20220509212827.2057822-1-atishp@rivosinc.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::102e; envelope-from=atishp@rivosinc.com; helo=mail-pj1-x102e.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This series implements Sstc extension[1] which was ratified recently. The first patch is a prepartory patches while PATCH 2 adds stimecmp support while PATCH 3 adds vstimecmp support. This series is based on on top of upstream commit (faee5441a038). The series can also be found at https://github.com/atishp04/qemu/tree/sstc_v3 It is tested on RV32 & RV64 with latest OpenSBI & Linux kernel[2] patches. It does require the mcountinhibi support patch from PMU series[3] or dummy one from Anup's series [4]. Otherwise, OpenSBI doesn't detect v1.12 priv version. Changes from v2->v3: 1. Dropped generic migration code improvement patches. 2. Removed the order constraints while updating stimecmp/vstimecmp. Changes from v1->v2: 1. Rebased on the latest upstream commit. 2. Replaced PATCH 1 with another patch where mtimer/timecmp is moved from CPU to ACLINT. 3. Added ACLINT migration support. [1] https://drive.google.com/file/d/1m84Re2yK8m_vbW7TspvevCDR82MOBaSX/view [2] https://github.com/atishp04/linux/tree/sstc_v3 [3] https://github.com/atishp04/qemu/tree/riscv_pmu_v7 [4] https://www.mail-archive.com/qemu-devel@nongnu.org/msg885157.html Atish Patra (3): hw/intc: Move mtimer/mtimecmp to aclint target/riscv: Add stimecmp support target/riscv: Add vstimecmp support hw/intc/riscv_aclint.c | 41 +++++-- hw/timer/ibex_timer.c | 18 ++- include/hw/intc/riscv_aclint.h | 2 + include/hw/timer/ibex_timer.h | 2 + target/riscv/cpu.c | 8 ++ target/riscv/cpu.h | 14 ++- target/riscv/cpu_bits.h | 8 ++ target/riscv/cpu_helper.c | 11 +- target/riscv/csr.c | 200 +++++++++++++++++++++++++++++++++ target/riscv/machine.c | 7 +- target/riscv/meson.build | 3 +- target/riscv/time_helper.c | 114 +++++++++++++++++++ target/riscv/time_helper.h | 30 +++++ 13 files changed, 426 insertions(+), 32 deletions(-) create mode 100644 target/riscv/time_helper.c create mode 100644 target/riscv/time_helper.h --- 2.25.1