From patchwork Thu Aug 26 14:56:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Matheus K. Ferst" X-Patchwork-Id: 1521173 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 ozlabs.org (Postfix) with ESMTPS id 4GwQvW1P2rz9sRN for ; Fri, 27 Aug 2021 00:58:15 +1000 (AEST) Received: from localhost ([::1]:50712 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mJGpY-0005v6-UP for incoming@patchwork.ozlabs.org; Thu, 26 Aug 2021 10:58:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44708) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mJGol-0005cM-CN; Thu, 26 Aug 2021 10:57:23 -0400 Received: from [201.28.113.2] (port=34533 helo=outlook.eldorado.org.br) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mJGok-00062m-15; Thu, 26 Aug 2021 10:57:23 -0400 Received: from power9a ([10.10.71.235]) by outlook.eldorado.org.br with Microsoft SMTPSVC(8.5.9600.16384); Thu, 26 Aug 2021 11:57:17 -0300 Received: from eldorado.org.br (unknown [10.10.70.45]) by power9a (Postfix) with ESMTP id 6B04C800930; Thu, 26 Aug 2021 11:57:17 -0300 (-03) From: matheus.ferst@eldorado.org.br To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Subject: [PATCH v3 1/2] include/qemu/int128.h: introduce bswap128s Date: Thu, 26 Aug 2021 11:56:55 -0300 Message-Id: <20210826145656.2507213-2-matheus.ferst@eldorado.org.br> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210826145656.2507213-1-matheus.ferst@eldorado.org.br> References: <20210826145656.2507213-1-matheus.ferst@eldorado.org.br> MIME-Version: 1.0 X-OriginalArrivalTime: 26 Aug 2021 14:57:17.0826 (UTC) FILETIME=[A9F48E20:01D79A8A] X-Host-Lookup-Failed: Reverse DNS lookup failed for 201.28.113.2 (failed) Received-SPF: pass client-ip=201.28.113.2; envelope-from=matheus.ferst@eldorado.org.br; helo=outlook.eldorado.org.br X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, PDS_HP_HELO_NORDNS=0.001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, philmd@redhat.com, richard.henderson@linaro.org, groug@kaod.org, Matheus Ferst , david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Matheus Ferst Changes the current bswap128 implementation to use __builtin_bswap128 when available, adds a bswap128 implementation for !CONFIG_INT128 builds, and introduces bswap128s based on bswap128. Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell Signed-off-by: Matheus Ferst --- include/qemu/int128.h | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/include/qemu/int128.h b/include/qemu/int128.h index e36c6e6db5..aa7a532727 100644 --- a/include/qemu/int128.h +++ b/include/qemu/int128.h @@ -1,9 +1,9 @@ #ifndef INT128_H #define INT128_H -#ifdef CONFIG_INT128 #include "qemu/bswap.h" +#ifdef CONFIG_INT128 typedef __int128_t Int128; static inline Int128 int128_make64(uint64_t a) @@ -155,7 +155,11 @@ static inline void int128_subfrom(Int128 *a, Int128 b) static inline Int128 bswap128(Int128 a) { +#if __has_builtin(__builtin_bswap128) + return __builtin_bswap128(a); +#else return int128_make128(bswap64(int128_gethi(a)), bswap64(int128_getlo(a))); +#endif } #else /* !CONFIG_INT128 */ @@ -342,5 +346,16 @@ static inline void int128_subfrom(Int128 *a, Int128 b) *a = int128_sub(*a, b); } +static inline Int128 bswap128(Int128 a) +{ + return int128_make128(bswap64(a.hi), bswap64(a.lo)); +} + #endif /* CONFIG_INT128 */ + +static inline void bswap128s(Int128 *s) +{ + *s = bswap128(*s); +} + #endif /* INT128_H */