From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f45.google.com (mail-ot1-f45.google.com [209.85.210.45]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D7C933D9E for ; Sat, 23 Mar 2024 06:26:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711175199; cv=none; b=XAiLMpbq4XMVpvkreURZIT4gCzYC0MRAlobsPGjZM8ERVnpvcZnHJDouA4UpkMEM142bUsvNHVKgXvKOMBvaJnhSW2fZGfK5O2eaV+pE+Tz92ippsXGEeqpU2CwiZmXsrNfR0sG5SrPe/HhBAW5hKiNk8GWSjHEiVlJ+0017JPg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711175199; c=relaxed/simple; bh=1jaVCkfGUt9+ZKDpqqrdz4xILcOY76BiSHYTOJFFH2E=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=td2prb+B8H9Zn355Zzkhd4AkO4DHH7F5vV83AfrhWh+g2ID/ZHP8SR4jwCdKALIMUsq80Jg8VkYWYNqXE4+r5qP6bgNCdHflPbdTwwkGAdtFhpR2xBLgoAlIqex/zTY+Z7cEsrf1cOQexLN2Nfo3m3/q8Yrja2Kpx+TFYN7ReFA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=evsZmLEH; arc=none smtp.client-ip=209.85.210.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="evsZmLEH" Received: by mail-ot1-f45.google.com with SMTP id 46e09a7af769-6e6969855c8so1595489a34.0 for ; Fri, 22 Mar 2024 23:26:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1711175197; x=1711779997; darn=vger.kernel.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=1jaVCkfGUt9+ZKDpqqrdz4xILcOY76BiSHYTOJFFH2E=; b=evsZmLEH+v8ajjjvhpyOyI3yFuxDwgiRQcpVTYWekXXKcKatBa5IkLKuWmCbTTXdTV +kzGE1B427irI3sVHM4jTJhi9FAnB1Zu6zlR1DrRwx91ExxZQ+ZfPxWL7t0q3smWgGTo iwyyS6e+ZP6fHiS1oPEPOZQZz93yaMXoJqcO4hL0H0f4igUt56w+0ZQiavLI0a+/jZi0 7t2zXZU1ykvupmDV0qXIWvXueiFxxcHZiig3IRimcdpq4BceMcpopIkE/SOqDXY2gd62 2on/x4yNjuU3kgOy0yFpSu3F5pflK2udFPbYDO7n1eDOMZiJKroPznK0nMcH7xVzAs2P OBEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1711175197; x=1711779997; 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=1jaVCkfGUt9+ZKDpqqrdz4xILcOY76BiSHYTOJFFH2E=; b=m71G40WodF7AHjg3MLgk6+fUyXXInBjSqbbv+BTk/uofZpWTYt0BZon2gJGkCbIeoL SLyS5ohBha2V1fLBqtM4Pd5WI6NyaAF7BUV3v1/41JMVhsluwwE2cgklBkvIh6rwMWai uyvHsMfgJLt6LBnRLb9AKpbgMw5bZgcyX4GzYA0DTnrXz5Eo2uy6Y5sbQoyJ9dlPoWFw T6LrmSi+Rqc5ErAMieQvzxZPEICDaAcEcgVf4uwuYfq8lzR/n776E7xN5zbG14sM/xEx J0//xF0bQ1Aulpu+6D/iteg6XenZ4SlUU3VkrviRQhiQZRwVfPAjwmY8Aa2ROMyYXbLF qlZw== X-Forwarded-Encrypted: i=1; AJvYcCUkQrARn8ZScIMyUpM9FEiEXofKCczKtfZYA82pstB7tYcwmIsPTt8mpUJNgVEo6RQ67N2bSo9hb+pqYiasUtuYnqOBBmQKjTmDR4tI X-Gm-Message-State: AOJu0YzpXJLHt0sYWI0kS/sRxjH+01D+IAP+kPXHLLPXPTJmpOBmvJDC ayaOYs5a8OjSeHEwDcgUirKdrERFtAHqNENgwbMFFMLpuWugaJ3K X-Google-Smtp-Source: AGHT+IEHyo+ubbUWK4arwma+3PRQMV7yKpXQuggv/YJ9P+edg7f4UJVqvn625Nj+WKv5vFH08lYBkA== X-Received: by 2002:a05:6830:4d7:b0:6e6:84a2:9e59 with SMTP id s23-20020a05683004d700b006e684a29e59mr1830226otd.9.1711175196822; Fri, 22 Mar 2024 23:26:36 -0700 (PDT) Received: from gmail.com ([104.28.240.134]) by smtp.gmail.com with ESMTPSA id v8-20020a63f208000000b005d7994a08dcsm2589763pgh.36.2024.03.22.23.26.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Mar 2024 23:26:36 -0700 (PDT) From: Qingfang Deng To: alexghiti@rivosinc.com Cc: aou@eecs.berkeley.edu, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, palmer@dabbelt.com, paul.walmsley@sifive.com, samuel.holland@sifive.com Subject: Re: [PATCH] riscv: Improve sbi_ecall() code generation by reordering arguments Date: Sat, 23 Mar 2024 14:26:25 +0800 Message-Id: <20240323062625.2488-1-dqfext@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240322112629.68170-1-alexghiti@rivosinc.com> References: <20240322112629.68170-1-alexghiti@rivosinc.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi Alexandre, You can simply make sbi_ecall `__always_inline`, so the C function call overhead can be fully avoided.