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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB363C433EF for ; Wed, 11 May 2022 19:30:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346935AbiEKTaM (ORCPT ); Wed, 11 May 2022 15:30:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346836AbiEKT3r (ORCPT ); Wed, 11 May 2022 15:29:47 -0400 Received: from gloria.sntech.de (gloria.sntech.de [185.11.138.130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 34DA0F61D2 for ; Wed, 11 May 2022 12:29:47 -0700 (PDT) Received: from ip5b412258.dynamic.kabel-deutschland.de ([91.65.34.88] helo=phil.lan) by gloria.sntech.de with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nos1g-0004fe-Tb; Wed, 11 May 2022 21:29:36 +0200 From: Heiko Stuebner To: palmer@dabbelt.com, paul.walmsley@sifive.com, aou@eecs.berkeley.edu Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, wefu@redhat.com, liush@allwinnertech.com, guoren@kernel.org, atishp@atishpatra.org, anup@brainfault.org, drew@beagleboard.org, hch@lst.de, arnd@arndb.de, wens@csie.org, maxime@cerno.tech, gfavor@ventanamicro.com, andrea.mondelli@huawei.com, behrensj@mit.edu, xinhaoqu@huawei.com, mick@ics.forth.gr, allen.baum@esperantotech.com, jscheid@ventanamicro.com, rtrauben@gmail.com, samuel@sholland.org, cmuellner@linux.com, philipp.tomsich@vrull.eu, Heiko Stuebner Subject: [PATCH 04/12] riscv: implement ALTERNATIVE_2 macro Date: Wed, 11 May 2022 21:29:13 +0200 Message-Id: <20220511192921.2223629-5-heiko@sntech.de> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220511192921.2223629-1-heiko@sntech.de> References: <20220511192921.2223629-1-heiko@sntech.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When the alternatives were added the commit already provided a template on how to implement 2 different alternatives for one piece of code. Make this usable. Signed-off-by: Heiko Stuebner Reviewed-by: Philipp Tomsich --- arch/riscv/include/asm/alternative-macros.h | 78 +++++++++++++++------ 1 file changed, 58 insertions(+), 20 deletions(-) diff --git a/arch/riscv/include/asm/alternative-macros.h b/arch/riscv/include/asm/alternative-macros.h index 5dd8d03a13da..9e04cd53afc8 100644 --- a/arch/riscv/include/asm/alternative-macros.h +++ b/arch/riscv/include/asm/alternative-macros.h @@ -39,6 +39,24 @@ #define _ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, CONFIG_k) \ __ALTERNATIVE_CFG old_c, new_c, vendor_id, errata_id, IS_ENABLED(CONFIG_k) +.macro __ALTERNATIVE_CFG_2 old_c, new_c_1, vendor_id_1, errata_id_1, enable_1, \ + new_c_2, vendor_id_2, errata_id_2, enable_2 +886 : + \old_c +887 : + ALT_NEW_CONTENT \vendor_id_1, \errata_id_1, \enable_1, \new_c_1 + ALT_NEW_CONTENT \vendor_id_2, \errata_id_2, \enable_2, \new_c_2 +.endm + +#define _ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, \ + CONFIG_k_1, \ + new_c_2, vendor_id_2, errata_id_2, \ + CONFIG_k_2) \ + __ALTERNATIVE_CFG_2 old_c, new_c_1, vendor_id_1, errata_id_1, \ + IS_ENABLED(CONFIG_k_1), \ + new_c_2, vendor_id_2, errata_id_2, \ + IS_ENABLED(CONFIG_k_2) + #else /* !__ASSEMBLY__ */ #include @@ -74,6 +92,25 @@ #define _ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, CONFIG_k) \ __ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, IS_ENABLED(CONFIG_k)) +#define __ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, \ + enable_1, \ + new_c_2, vendor_id_2, errata_id_2, \ + enable_2) \ + "886 :\n" \ + old_c "\n" \ + "887 :\n" \ + ALT_NEW_CONTENT(vendor_id_1, errata_id_1, enable_1, new_c_1) \ + ALT_NEW_CONTENT(vendor_id_2, errata_id_2, enable_2, new_c_2) + +#define _ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, \ + CONFIG_k_1, \ + new_c_2, vendor_id_2, errata_id_2, \ + CONFIG_k_2) \ + __ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, \ + IS_ENABLED(CONFIG_k_1), \ + new_c_2, vendor_id_2, errata_id_2, \ + IS_ENABLED(CONFIG_k_2)) + #endif /* __ASSEMBLY__ */ #else /* CONFIG_RISCV_ALTERNATIVE */ @@ -86,6 +123,12 @@ #define _ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, CONFIG_k) \ __ALTERNATIVE_CFG old_c +#define _ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, \ + CONFIG_k_1, \ + new_c_2, vendor_id_2, errata_id_2, \ + CONFIG_k_2) \ + __ALTERNATIVE_CFG old_c + #else /* !__ASSEMBLY__ */ #define __ALTERNATIVE_CFG(old_c) \ @@ -94,6 +137,12 @@ #define _ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, CONFIG_k) \ __ALTERNATIVE_CFG(old_c) +#define _ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, \ + CONFIG_k_1, \ + new_c_2, vendor_id_2, errata_id_2, \ + CONFIG_k_2) \ + __ALTERNATIVE_CFG(old_c) + #endif /* __ASSEMBLY__ */ #endif /* CONFIG_RISCV_ALTERNATIVE */ @@ -119,25 +168,14 @@ * this case, this vendor can create a new macro ALTERNATIVE_2() based * on the following sample code and then replace ALTERNATIVE() with * ALTERNATIVE_2() to append its customized content. - * - * .macro __ALTERNATIVE_CFG_2 old_c, new_c_1, vendor_id_1, errata_id_1, enable_1, \ - * new_c_2, vendor_id_2, errata_id_2, enable_2 - * 886 : - * \old_c - * 887 : - * ALT_NEW_CONTENT \vendor_id_1, \errata_id_1, \enable_1, \new_c_1 - * ALT_NEW_CONTENT \vendor_id_2, \errata_id_2, \enable_2, \new_c_2 - * .endm - * - * #define _ALTERNATIVE_CFG_2(old_c, new_c_1, vendor_id_1, errata_id_1, CONFIG_k_1, \ - * new_c_2, vendor_id_2, errata_id_2, CONFIG_k_2) \ - * __ALTERNATIVE_CFG_2 old_c, new_c_1, vendor_id_1, errata_id_1, IS_ENABLED(CONFIG_k_1), \ - * new_c_2, vendor_id_2, errata_id_2, IS_ENABLED(CONFIG_k_2) \ - * - * #define ALTERNATIVE_2(old_content, new_content_1, vendor_id_1, errata_id_1, CONFIG_k_1, \ - * new_content_2, vendor_id_2, errata_id_2, CONFIG_k_2) \ - * _ALTERNATIVE_CFG_2(old_content, new_content_1, vendor_id_1, errata_id_1, CONFIG_k_1, \ - * new_content_2, vendor_id_2, errata_id_2, CONFIG_k_2) - * */ +#define ALTERNATIVE_2(old_content, new_content_1, vendor_id_1, \ + errata_id_1, CONFIG_k_1, \ + new_content_2, vendor_id_2, \ + errata_id_2, CONFIG_k_2) \ + _ALTERNATIVE_CFG_2(old_content, new_content_1, vendor_id_1, \ + errata_id_1, CONFIG_k_1, \ + new_content_2, vendor_id_2, \ + errata_id_2, CONFIG_k_2) + #endif -- 2.35.1