From patchwork Sun Jan 15 15:49:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jisheng Zhang X-Patchwork-Id: 13102318 X-Patchwork-Delegate: palmer@dabbelt.com 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 28F8DC3DA78 for ; Sun, 15 Jan 2023 16:00:54 +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=nB0NFzaIuGRiR9ujWI8ATW/QrFAhQDEwBqY9XZADJYc=; b=wpieayLbg4wvIa ZsQ1cSuNX2WoS9B9g/UOEGIegVNidIcBqXiPNbLPbk4jCccEWc9TH50EsbC9hr8Lph0JZyXaDi+TS pSi3sZBcx8p2gdrPNmcNzPCxuCsLdTqhVGCNFfdB+EU0v9VHHnqbK59Hykkvj1fod4MOjlg/eBOhT l1sOaxGAlfuBwHFRJ99euiUlTQ5SxsoXYCiac3FLevoDbhDlq4wS6zLFMmZ+1JpiSY8UgM0LPwtVH naZSwUffjaTpJ0ou+r0rxJ0xO5NyFW7Mw/X97dsaZI9UzmnSRd7/xRs4MY7V8ZzJSGf+KSl3OMIbg a9ZBBUR4dZXmGfRimu0g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pH5R7-007c1L-VM; Sun, 15 Jan 2023 16:00:45 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pH5Qy-007bpu-K2; Sun, 15 Jan 2023 16:00:38 +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 ams.source.kernel.org (Postfix) with ESMTPS id 14EABB80B57; Sun, 15 Jan 2023 16:00:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4123CC433D2; Sun, 15 Jan 2023 16:00:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1673798433; bh=a+5QZf9cRg0N2ZzfrrrGF2H31LP1zc5XIp+raVH9xP4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eeATq3GeOjDCnHtOuIlblgyo54bNCI8Be+rNhdZO3EH1ekeEJDMyGH66ChnMB+NWj I+ZhDDI8WeAibt7FSddSrGJuVDOdYgIVjVL8tfnyZ+h5JWyxroyMQOMIqrxpE1uO2Y l2EGhswWLUQM0+iDWNaX1hM7+KjMIx10mq5JVRhs7x+1iVddB9DLhpryCAsh+XaSLB tLjBCyWIXEpy8OuKgl+/a7qYz7DgQeJ9ssf9IosOGNqVsevHbCxuqLhCqoUSa1PveT mO71cZVCTOxn7pDzuJKFU4seP2uSYCYyx0FJS+EdPP54bTlJBKtb5jyz8lqJa2QIEh pHrgbTj3v8z7w== From: Jisheng Zhang To: Paul Walmsley , Palmer Dabbelt , Albert Ou , Anup Patel , Atish Patra , Heiko Stuebner , Conor Dooley , Andrew Jones Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org Subject: [PATCH v4 07/13] riscv: fpu: switch has_fpu() to riscv_has_extension_likely() Date: Sun, 15 Jan 2023 23:49:47 +0800 Message-Id: <20230115154953.831-8-jszhang@kernel.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: <20230115154953.831-1-jszhang@kernel.org> References: <20230115154953.831-1-jszhang@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230115_080036_828602_23BFEF7A X-CRM114-Status: GOOD ( 10.28 ) 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 Switch has_fpu() from static branch to the new helper riscv_has_extension_likely(). Signed-off-by: Jisheng Zhang Reviewed-by: Andrew Jones Reviewed-by: Heiko Stuebner Reviewed-by: Conor Dooley --- arch/riscv/include/asm/switch_to.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/riscv/include/asm/switch_to.h b/arch/riscv/include/asm/switch_to.h index 11463489fec6..60f8ca01d36e 100644 --- a/arch/riscv/include/asm/switch_to.h +++ b/arch/riscv/include/asm/switch_to.h @@ -59,7 +59,8 @@ static inline void __switch_to_aux(struct task_struct *prev, static __always_inline bool has_fpu(void) { - return static_branch_likely(&riscv_isa_ext_keys[RISCV_ISA_EXT_KEY_FPU]); + return riscv_has_extension_likely(RISCV_ISA_EXT_f) || + riscv_has_extension_likely(RISCV_ISA_EXT_d); } #else static __always_inline bool has_fpu(void) { return false; }