From patchwork Wed Aug 28 09:52:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ajeet Singh X-Patchwork-Id: 13781015 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 E8D02C54E65 for ; Wed, 28 Aug 2024 09:54:28 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sjFMh-0002qu-GX; Wed, 28 Aug 2024 05:53:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sjFMg-0002ls-9l for qemu-devel@nongnu.org; Wed, 28 Aug 2024 05:53:22 -0400 Received: from mail-oi1-x234.google.com ([2607:f8b0:4864:20::234]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sjFMe-0001pl-72 for qemu-devel@nongnu.org; Wed, 28 Aug 2024 05:53:22 -0400 Received: by mail-oi1-x234.google.com with SMTP id 5614622812f47-3db1e4219f8so1039622b6e.3 for ; Wed, 28 Aug 2024 02:53:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724838799; x=1725443599; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=aPq6C7QoOX3nfkGLM/R7pqXc/B3Uq/1K4kEgtZxBVyo=; b=e7osteoyyAX4ITPQ2oaW1GxPJiyjPRBDKz3qPpl3BjD9wBLuTrDNTdG3Slf42WhIPP HkT9cUqmflAZD2bhhxkRae4WRJjFlRlMWvLxuJob8KAfFD09mtU+S4ooSQ3vgq4z6zNK DhBgegADeYOmfhDJj/UP1NR9i7SNHLQ++p6wWV7yjleooBONE64EJBE+VTWr3rbGf3ue 0yJ99NBcaOKyFfgU6eLrettEMCEamSXXr+rNr70/GOwR51Y8LxT7I65b3nYFSRIIrBOd ps1DZQdUuU5BdBPBQGxAThu0g9hiUtJYI21BL7bEW5gUSeOPJWfEe8PmHUahZ13K68Bg mIcw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724838799; x=1725443599; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=aPq6C7QoOX3nfkGLM/R7pqXc/B3Uq/1K4kEgtZxBVyo=; b=c+PhG7FHhu2jcaEKpF6oD3vv+N+8KYt0nNQPpsLbt5kUIGsrqlZK5s5AyO0emGs5Iw DGPgoay29u0x/jvffeXlDT2n7Q4mi/bRYSjI9xerDVsGsgCzlmIgaRQfqpCiwqtnWvb2 US1O7TV97PB2475+fuqwys6Iy2pnzaBNxrOEjjp4sPcMOdMFqwTBDy5IwVKuRaBEBgQS +TZbKWhOhtlej9nqbg4PY4ucqaPSj944q2rYqiS6/6e/+35GFCbdW5j4MO71ZCQK5wLn yL/ak+IUJ7eEw+AMDCSzXWZZTEy+xYouRcA63E7pAIvDoGycN8A+AiFb2rhbLuOdthIl 1X0A== X-Gm-Message-State: AOJu0YxqUkB6URzbblsrtnVCgkF5m9qys5b5ZJLO8il0ix1n6tF/VQUX +cIAYl4BLqm0OKxkGHSKGGDXHzor9oQIzDnx9tuC60wSdi/hkRtbInmvb9Bt X-Google-Smtp-Source: AGHT+IHH5SQPjDOWMAEw23Z2mhEvqhRxVbVyav43MXN79zxxTrU20Yqgu7eJ8BdHmkvBDVbmiBnuVw== X-Received: by 2002:a05:6871:3297:b0:261:e19:458d with SMTP id 586e51a60fabf-273e646d7b8mr17435410fac.4.1724838798470; Wed, 28 Aug 2024 02:53:18 -0700 (PDT) Received: from localhost.localdomain ([220.253.126.131]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7143430f6e7sm9787508b3a.160.2024.08.28.02.53.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Aug 2024 02:53:18 -0700 (PDT) From: Ajeet Singh X-Google-Original-From: Ajeet Singh To: qemu-devel@nongnu.org Cc: Mark Corbin , Warner Losh , Ajeet Singh , Jessica Clarke , Kyle Evans , Richard Henderson Subject: [PATCH v4 09/17] bsd-user: Add RISC-V thread setup and initialization support Date: Wed, 28 Aug 2024 19:52:35 +1000 Message-Id: <20240828095243.90491-10-itachis@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240828095243.90491-1-itachis@FreeBSD.org> References: <20240828095243.90491-1-itachis@FreeBSD.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::234; envelope-from=itachis6234@gmail.com; helo=mail-oi1-x234.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, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Mark Corbin Implemented functions for setting up and initializing threads in the RISC-V architecture. The 'target_thread_set_upcall' function sets up the stack pointer, program counter, and function argument for new threads. The 'target_thread_init' function initializes thread registers based on the provided image information. Signed-off-by: Mark Corbin Signed-off-by: Ajeet Singh Co-authored-by: Jessica Clarke Co-authored-by: Kyle Evans Reviewed-by: Richard Henderson --- bsd-user/riscv/target_arch_thread.h | 47 +++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 bsd-user/riscv/target_arch_thread.h diff --git a/bsd-user/riscv/target_arch_thread.h b/bsd-user/riscv/target_arch_thread.h new file mode 100644 index 0000000000..db0f9eb52c --- /dev/null +++ b/bsd-user/riscv/target_arch_thread.h @@ -0,0 +1,47 @@ +/* + * RISC-V thread support + * + * Copyright (c) 2019 Mark Corbin + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see . + */ + +#ifndef TARGET_ARCH_THREAD_H +#define TARGET_ARCH_THREAD_H + +/* Compare with cpu_set_upcall() in riscv/riscv/vm_machdep.c */ +static inline void target_thread_set_upcall(CPURISCVState *regs, + abi_ulong entry, abi_ulong arg, abi_ulong stack_base, + abi_ulong stack_size) +{ + abi_ulong sp; + + sp = ROUND_DOWN(stack_base + stack_size,16); + + regs->gpr[xSP] = sp; + regs->pc = entry; + regs->gpr[xA0] = arg; +} + +/* Compare with exec_setregs() in riscv/riscv/machdep.c */ +static inline void target_thread_init(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->sepc = infop->entry; + regs->regs[xRA] = infop->entry; + regs->regs[xA0] = infop->start_stack; + regs->regs[xSP] = ROUND_DOWN(infop->start_stack,16); +} + +#endif /* TARGET_ARCH_THREAD_H */