From patchwork Sun Nov 12 06:14:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 13453270 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 399D7C4332F for ; Sun, 12 Nov 2023 06:16:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BPiQ7XxYlU1NCiWdKE04mhHl2NmEmEpRNF6CMGkEDCk=; b=Wn+4seEZXwlPDc sIBXFC3Hpez3mq6Xkvkz3JjP+PlXoUg7FRBTAohrd9RFtLAWDNiPeRtfnaPlx7fifIvMZvcaVrJV9 aaPWThG467aTA5l39jxD/5NcS24Vk/aLz42qNCdrSwlEK9VI6ndJAuVQLrKgouNBnYObpMED3tZzG 6w+nyNtJEz2zWpnZS9+YpzjP1XBUrFjegYxtJDMF1UWlj/R58XcyaeqPVpBAM7EAxZ9nHZtXyMZ28 AGBcKlvB2KOPGJLKfAQi2ZcXnF4f8B4n/fZvCpd9XpIM8Yq7vcHHdMwyAMxMay8oN98/vlaEUP2sG VSCvGkIsJX8o/xOIO/hw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r23lo-00Bjb0-1i; Sun, 12 Nov 2023 06:16:32 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r23ll-00BjZ6-1z for linux-riscv@lists.infradead.org; Sun, 12 Nov 2023 06:16:31 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id D957360C2E; Sun, 12 Nov 2023 06:16:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0415FC433CC; Sun, 12 Nov 2023 06:16:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1699769788; bh=x2yNl81rtMLNR83PEs3HCmEpsQ4/7rJymYTh7H6aEEs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EB1Tkw1ZePpU08PhgrQFyDzSgHHkUjmbXxR/MUfG9bEVV+Iqk7O9UI0yiAixM8Jim ijdKADfSY75NGC29rcYC1mdguX3mcb7TwbXCv5XJbBQy0Szp1r0s50Ul50mA7JJS0O nLfC/bApQGYZcDd7S8pGBd2WNctZpvQ2G4sr3FE+v+cbbKJcQ154u+YzChQk2HyUZO QMl52JlYFGIXKd1n7CaPK5ahUUZ3kDSEhDiIoMq5PhRfUHho2veayBgIf8qrZBZYJS dEMpUJibV+TeKlPUnHb0iDewAmVuzxXifFf3b86rqSS9CRpgB19LbEZjFi810Jl04U Ds4QiYJ1/SScw== From: guoren@kernel.org To: arnd@arndb.de, guoren@kernel.org, palmer@rivosinc.com, tglx@linutronix.de, conor.dooley@microchip.com, heiko@sntech.de, apatel@ventanamicro.com, atishp@atishpatra.org, bjorn@kernel.org, paul.walmsley@sifive.com, anup@brainfault.org, jiawei@iscas.ac.cn, liweiwei@iscas.ac.cn, wefu@redhat.com, U2FsdGVkX1@gmail.com, wangjunqiang@iscas.ac.cn, kito.cheng@sifive.com, andy.chiu@sifive.com, vincent.chen@sifive.com, greentime.hu@sifive.com, wuwei2016@iscas.ac.cn, jrtc27@jrtc27.com, luto@kernel.org, fweimer@redhat.com, catalin.marinas@arm.com, hjl.tools@gmail.com Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Guo Ren Subject: [RFC PATCH V2 10/38] riscv: u64ilp32: Remove the restriction of UXL=32 Date: Sun, 12 Nov 2023 01:14:46 -0500 Message-Id: <20231112061514.2306187-11-guoren@kernel.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20231112061514.2306187-1-guoren@kernel.org> References: <20231112061514.2306187-1-guoren@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231111_221629_706468_1D69C700 X-CRM114-Status: UNSURE ( 9.27 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org From: Guo Ren The u64ilp32 needn't hardware support UXL=32, so remove the restriction when EF_RISCV_64ILP32 is detected. Reported-by: Junqiang Wang Signed-off-by: Guo Ren Signed-off-by: Guo Ren --- arch/riscv/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/kernel/process.c b/arch/riscv/kernel/process.c index e32d737e039f..93057ca2e2a7 100644 --- a/arch/riscv/kernel/process.c +++ b/arch/riscv/kernel/process.c @@ -88,7 +88,7 @@ static bool compat_mode_supported __read_mostly; bool compat_elf_check_arch(Elf32_Ehdr *hdr) { - return compat_mode_supported && + return (compat_mode_supported || (hdr->e_flags & EF_RISCV_64ILP32)) && hdr->e_machine == EM_RISCV && hdr->e_ident[EI_CLASS] == ELFCLASS32; }