From patchwork Sun Dec 4 17:46:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 1712038 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=mYWnaGc4; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=QpYNHilC; dkim-atps=neutral Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4NQDxK4CrVz23mf for ; Mon, 5 Dec 2022 05:00:37 +1100 (AEDT) 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=KFrAS5D84t0xiUlEyDSflrxTSJxP67WUzbxb3CVyfMk=; b=mYWnaGc4S4OhI5 MqP7l7HjtFjC/sMsqTW7XT/3gjk5Xy4Ieh05sGa38qtLM9JrkrmV8m5V7qrMAFp72wxL9tqresEQN cD7SX8fGlEu5oU1LDHdXj/aVKRmR2j5WZsoSSxw0f6xTzfSUT/Y3zxBsVPZSN+jiMH6q1VvgA4D4N U6PTDiOVnGK269iM4KFwJbvWCu3vePLoQxFGd6RM4mWwF5EbRuJutOqKD+mJf167GEui59LX3xj8I 5COagccMdaYKm+FZOxpgdctmAw7Ep0KttYeuQxXlAJojagR2VBCOewA+v24N7gr6C8AN4bOiQ5Yj7 mDaOVoEkrJT2kYQzlPdA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1p1tI0-00A7sh-Kz; Sun, 04 Dec 2022 18:00:33 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1p1tEa-00A6ic-Ek; Sun, 04 Dec 2022 17:57:01 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D8C5660EE0; Sun, 4 Dec 2022 17:56:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EFD8EC43470; Sun, 4 Dec 2022 17:56:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1670176619; bh=u5VhYmq8yWH9O8+BoW4qRUe99SmFaRTC5wB7Se/uBJw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QpYNHilCA78Drqked9tH88Z2nzF/SNRZ+5pLsnrohFdVnwFtu9bdnJSV0FtaAjI1a PSjEyjWDHSUFHy1ZNJl1NK5fT1Dhde5Ksxg6GX1w4lv0PEXz5V5ei0maXQ2AczJ8VK 1fUKovAKk1yaTBUYWKpfphDLSQ/EcjAypQw+bPjx7BzRKN3DKc5m0dJFmJFJx4U2o1 mNel4heiGwd54dMFQWIYve0yacnLxTTmgRTCe1t+t446rn5L4AK4I6PxuiWN+O5RSj iuRPG7SrGqujbaILYtf6njMHGQFRUWsAkZ/yMG7X+3eKJ5diDVVKnQa+/dVdFxIGr1 sUplS2CbdsU1A== From: Jisheng Zhang To: Palmer Dabbelt , Paul Walmsley , Albert Ou , Anup Patel , Atish Patra , Heiko Stuebner , Andrew Jones Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org Subject: [PATCH v2 11/13] riscv: cpu_relax: switch to riscv_has_extension_likely() Date: Mon, 5 Dec 2022 01:46:30 +0800 Message-Id: <20221204174632.3677-12-jszhang@kernel.org> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20221204174632.3677-1-jszhang@kernel.org> References: <20221204174632.3677-1-jszhang@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20221204_095700_546794_275D9E7C X-CRM114-Status: GOOD ( 11.59 ) X-Spam-Score: -5.4 (-----) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. 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Content preview: Switch cpu_relax() from statich branch to the new helper riscv_has_extension_likely() Signed-off-by: Jisheng Zhang Reviewed-by: Andrew Jones Reviewed-by: Heiko Stuebner --- arch/riscv/include/asm/vdso/processor.h | 2 +- 1 [...] Content analysis details: (-5.4 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [139.178.84.217 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.2 DKIMWL_WL_HIGH DKIMwl.org - High trust sender X-BeenThere: kvm-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: "kvm-riscv" Errors-To: kvm-riscv-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org Switch cpu_relax() from statich branch to the new helper riscv_has_extension_likely() Signed-off-by: Jisheng Zhang Reviewed-by: Andrew Jones Reviewed-by: Heiko Stuebner Reviewed-by: Guo Ren --- arch/riscv/include/asm/vdso/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/riscv/include/asm/vdso/processor.h b/arch/riscv/include/asm/vdso/processor.h index fa70cfe507aa..edf0e25e43d1 100644 --- a/arch/riscv/include/asm/vdso/processor.h +++ b/arch/riscv/include/asm/vdso/processor.h @@ -10,7 +10,7 @@ static inline void cpu_relax(void) { - if (!static_branch_likely(&riscv_isa_ext_keys[RISCV_ISA_EXT_KEY_ZIHINTPAUSE])) { + if (!riscv_has_extension_likely(RISCV_ISA_EXT_ZIHINTPAUSE)) { #ifdef __riscv_muldiv int dummy; /* In lieu of a halt instruction, induce a long-latency stall. */