From patchwork Mon Mar 7 20:53:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Heiko_St=C3=BCbner?= X-Patchwork-Id: 12772350 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 10D37C433F5 for ; Mon, 7 Mar 2022 20:53:43 +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=1GCuLx6bm9YQwrXU3Z7buXojj2IjXxqA4o3frDCyDgw=; b=NBfDKxCe4yt4a9 NldZH79rP4DxsTXkr7PS94eWJyKlZra1kY66nMMjyjdEb7SqUWOi9w6cV4b+Tt4VyudIzl8EEYJrZ r7mtrwzuBjCBNOpp2dSfJclXMidNSoXZaX3M71PjJhMtgJrioVcO5l/CF/fAmZeZ5YZi2n+l8n2kJ 84xJjcAtufmHGnoH2xS39GhA11PwkJggSwhfCRF8dws/WbDTD6ANJ/nkYeA5hdp5ZjnCutOpofWe0 vs8qDtwS7TJVu+PL7Ev3aSfyWPI2fGuqdp0FSK8OY3yJOjhfYj5HtifN7FJs6yaxtXHZOU4ZYiY2D ozHdDHyEl3MrYq7A3kjg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nRKMJ-001XDS-QH; Mon, 07 Mar 2022 20:53:35 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nRKM6-001X5O-S9 for linux-riscv@lists.infradead.org; Mon, 07 Mar 2022 20:53:26 +0000 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 1nRKM2-0002DJ-61; Mon, 07 Mar 2022 21:53:18 +0100 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 v7 05/13] riscv: implement ALTERNATIVE_2 macro Date: Mon, 7 Mar 2022 21:53:02 +0100 Message-Id: <20220307205310.1905628-6-heiko@sntech.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220307205310.1905628-1-heiko@sntech.de> References: <20220307205310.1905628-1-heiko@sntech.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220307_125323_034626_69CDD21E X-CRM114-Status: GOOD ( 11.50 ) 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 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 --- arch/riscv/include/asm/alternative-macros.h | 52 +++++++++++++-------- 1 file changed, 32 insertions(+), 20 deletions(-) diff --git a/arch/riscv/include/asm/alternative-macros.h b/arch/riscv/include/asm/alternative-macros.h index 92da6b3920a3..baf649293288 100644 --- a/arch/riscv/include/asm/alternative-macros.h +++ b/arch/riscv/include/asm/alternative-macros.h @@ -37,6 +37,20 @@ #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 @@ -72,6 +86,19 @@ #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__ */ /* @@ -96,25 +123,10 @@ * 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