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 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 2A988C282EC for ; Sat, 8 Mar 2025 12:45:06 +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:Message-ID:Date:References :In-Reply-To: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=OqmWg9IeX2O1rwX5e//KZS3MVV8zQJR5AyOzy5rvmrI=; b=m82braAu7E9EDP 0GGTtdS/PFhnI/wjbwMF6GlQnBskX/hHIRhED67YDZgM/dIXzInUNJho1muwbYTvgMwkuIMu39IHY SKmf0ndvjesCy7+L7UfBK75SzaMgqr/j8W7AxTE5BBw/ft60slaH4S4bSR9e8rAWexWlVsUCX+PqX 9MUqDm1JNu+nVtQXDQOlSCzFT4mJlNh+GiEimCNZWZiSdob7/svZymcMKR2lIcdT4MeGGbBXEYq2j MoMS+OAO7VWY/ekv3pdmJnLGKItc7P7c7qdpNSAlDJNaamGvazYfKXIzCgrwTpTqgMkbI7LBC3EAj l9irE0cKvpcarSP/aM+Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tqtY1-0000000Gcnz-1Kjm; Sat, 08 Mar 2025 12:44:57 +0000 Received: from galois.linutronix.de ([193.142.43.55]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tqtQr-0000000Gbxv-0ZBa for linux-riscv@lists.infradead.org; Sat, 08 Mar 2025 12:37:34 +0000 From: Thomas Gleixner DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1741437451; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=o8abf0OObLh7cZ3WWFsVYwo4EpsS2nDZ7Ej/A+vuDoM=; b=YhsDrL/295LV4DMGJmyeG5m59Er0pBPxblaWRcnwCDK/y5yjozDd7DoDlxC4bSiVpPZsnB GZoA4+vyRWmZmNZaXWQFwnhovlRyTLOo574r4Z+foLcPKukYepMMYXLQpBFTr1m809WX1i d3XL3e4Jr1WtoJnuzrLWExFXZExHJ4wwoZigcjXm0pu8Jyb+TYq4EGyp7Rx6YkW27BjQ3w OSPvivQ5uLtI6Be5KZxDwAny2jbZVJn6SLPPCdccoyVef3ReL92MkoEyvPJNYU9R3RpSZb 5CykgaB95PHj+uYCIDlz5HvjXkqH1lnXSZ5RdL5ZLjSH2zzPDaRPicgAz8OyIQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1741437451; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=o8abf0OObLh7cZ3WWFsVYwo4EpsS2nDZ7Ej/A+vuDoM=; b=NmGNVQkPtxoG8GIZFsUt/CCutMvDnEhlPGrPQZUlA1eDT4l0qZQMhgwHpBWHBvXMWmgDRT 2OQzka/4GKlsjLBw== To: Charlie Jenkins , Paul Walmsley , Palmer Dabbelt , Huacai Chen , WANG Xuerui , Peter Zijlstra , Andy Lutomirski , Alexandre Ghiti Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, Charlie Jenkins Subject: Re: [PATCH v5 4/4] entry: Inline syscall_exit_to_user_mode() In-Reply-To: <20250305-riscv_optimize_entry-v5-4-6507b5dff3ce@rivosinc.com> References: <20250305-riscv_optimize_entry-v5-0-6507b5dff3ce@rivosinc.com> <20250305-riscv_optimize_entry-v5-4-6507b5dff3ce@rivosinc.com> Date: Sat, 08 Mar 2025 13:37:30 +0100 Message-ID: <87senn3dh1.ffs@tglx> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250308_043733_317321_48C337D7 X-CRM114-Status: UNSURE ( 4.83 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Wed, Mar 05 2025 at 16:43, Charlie Jenkins wrote: > Architectures using the generic entry code can be optimized by having > syscall_exit_to_user_mode inlined. That's a pretty handwavy claim. What's the actual benefit in numbers? Thanks, tglx _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv