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 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 0C16BCE7A81 for ; Mon, 25 Sep 2023 13:39:50 +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=xfJSC77TqTOj3drn3B8XHZkVSFtwKlOGhaQLzU35yDs=; b=jfOkb/4F61jZfq Ji/b0WPz7rvDa8FWuz2Dl6NncFfuid0Nmo5CKDxG65yjO2kTkc9tJFJbNAg3sKxyRboHhKjKYl0BO NZqssDKXPlviWO/6jg7DprtQ8X4q3bm7Yr+Z3YBdbILgYkTHftz7aKlNB0Ayp/GKAXmp7sr669sd3 hITzFSc95/kfY8aKLcftOS0BvykK59Drdd5LhyliziceGB6DlkLu/QL3I98nheGW1HIEF6tMsVnYY i2WBkmhKAi1dS6HLBavakWRG557IGK7BNL+dZqvL3Fu07TIT2ZvKg95+RnSszpRAEJtfycqIHbKEx UEauf5pyqQeVVq+JHk+A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qkloO-00EMHp-0P; Mon, 25 Sep 2023 13:39:44 +0000 Received: from mail-pl1-x636.google.com ([2607:f8b0:4864:20::636]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qkloL-00EMFl-0h for linux-riscv@lists.infradead.org; Mon, 25 Sep 2023 13:39:42 +0000 Received: by mail-pl1-x636.google.com with SMTP id d9443c01a7336-1c5db4925f9so44542265ad.1 for ; Mon, 25 Sep 2023 06:39:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1695649180; x=1696253980; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=G0o9lQ4GgOP7dFq6KPsGtVotlHRRQlDwzXlKCC3Ypps=; b=ExavEAVE/aytoCAf0jU58CjXgwLOcJ+IBfV4HZV6+/dIi6y25QKdYiaKDTZ3NWyowW UJk1R15uiD280KqGjlcfXNHI19eMDGcrDYB9Tg7njOyT/I3HOhTDUhrunwf5BVUXCj1o 03XDfUfNI0uHgAkKCZnh/QdEJ9l5CS1bVTYZMxg/ZWmtMkdKEYYYpCA9EdnUb1+zX4i5 ddBPY+IunNhtYd8zpylJqGICEocNTGdc35LpmFtbzhWD/WOhMrmDbANyKljAuklmmMIB bQjkgqqUAVy4e25rzB8gaHbXI9dFXreRSvmDnJg+bQREorjoU7PXwja6KrDKDHkbauag 1DUw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1695649180; x=1696253980; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=G0o9lQ4GgOP7dFq6KPsGtVotlHRRQlDwzXlKCC3Ypps=; b=nWmJdjNm5toAIo/Xo+2ELa1I9Mz03QTKruMgxM2WI75hVnGole7zx3Tq8zhqj6KCUN YVRRrRdzadNy2fcjHOZaRtSnWavAL99l/a7NX3YfMQazY/Tal9bTKh8yIXnt7kEoa1pa fBwR6TUqJPJpdTnGGuPmuQzoh4AnauU/lZbsAUZ57nsY1FD6z+vWReGSq6zTbFknqeIk 4ktdFmywvZFnXhY9lpWjTT4qSUMhU1+5RZTFbPkB0lEarKeEqVj2qT8CpqOta6fnVU77 OpdP9vMjUY/0YbUd6ZLy8FcPQXvCMvJNAmhLZzHrKzaOsHgW+Z/YYArZTMMxT7+laeHQ 3zqw== X-Gm-Message-State: AOJu0Yw9E9ExlZrPP81iPt9pQ5SJ7wgBsQarRH+0U4KjBv9NZIo8mYwN A3GzhK+nwFk6oSWCnkCrcEDgew== X-Google-Smtp-Source: AGHT+IHWCYspI/fUj+Ig0k3L9hYf5Uzb2FzPkjigw9xzhpmfqfpqTqSt/ibnnqx7qGmYx7Sty1gsrA== X-Received: by 2002:a17:902:e5d1:b0:1c3:868f:5958 with SMTP id u17-20020a170902e5d100b001c3868f5958mr14239969plf.20.1695649180488; Mon, 25 Sep 2023 06:39:40 -0700 (PDT) Received: from anup-ubuntu-vm.localdomain ([103.97.165.210]) by smtp.gmail.com with ESMTPSA id p11-20020a170902eacb00b001c625d6ffccsm969433pld.129.2023.09.25.06.39.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Sep 2023 06:39:40 -0700 (PDT) From: Anup Patel To: Paolo Bonzini , Atish Patra , Palmer Dabbelt , Paul Walmsley , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Shuah Khan Cc: Andrew Jones , Mayuresh Chitale , devicetree@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Anup Patel Subject: [PATCH v2 4/9] RISC-V: Detect Zicond from ISA string Date: Mon, 25 Sep 2023 19:08:54 +0530 Message-Id: <20230925133859.1735879-5-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230925133859.1735879-1-apatel@ventanamicro.com> References: <20230925133859.1735879-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230925_063941_259388_09BE45D1 X-CRM114-Status: UNSURE ( 9.76 ) X-CRM114-Notice: Please train this message. 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The RISC-V integer conditional (Zicond) operation extension defines standard conditional arithmetic and conditional-select/move operations which are inspired from the XVentanaCondOps extension. In fact, QEMU RISC-V also has support for emulating Zicond extension. Let us detect Zicond extension from ISA string available through DT or ACPI. Signed-off-by: Anup Patel --- arch/riscv/include/asm/hwcap.h | 1 + arch/riscv/kernel/cpufeature.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index b7efe9e2fa89..15bafc02ffd4 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -60,6 +60,7 @@ #define RISCV_ISA_EXT_ZIHPM 42 #define RISCV_ISA_EXT_SMSTATEEN 43 #define RISCV_ISA_EXT_XVENTANACONDOPS 44 +#define RISCV_ISA_EXT_ZICOND 45 #define RISCV_ISA_EXT_MAX 64 diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 3a31d34fe709..7f683916f2c2 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -167,6 +167,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = { __RISCV_ISA_EXT_DATA(zicbom, RISCV_ISA_EXT_ZICBOM), __RISCV_ISA_EXT_DATA(zicboz, RISCV_ISA_EXT_ZICBOZ), __RISCV_ISA_EXT_DATA(zicntr, RISCV_ISA_EXT_ZICNTR), + __RISCV_ISA_EXT_DATA(zicond, RISCV_ISA_EXT_ZICOND), __RISCV_ISA_EXT_DATA(zicsr, RISCV_ISA_EXT_ZICSR), __RISCV_ISA_EXT_DATA(zifencei, RISCV_ISA_EXT_ZIFENCEI), __RISCV_ISA_EXT_DATA(zihintpause, RISCV_ISA_EXT_ZIHINTPAUSE), -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv