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 C7D08ECAAD8 for ; Wed, 21 Sep 2022 16:47:19 +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:Cc:To:Subject:Message-ID:Date:From: MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=nfdVB31cP1Y9/C1jVHMKUxPSTsO5G6+kZD+yFWAUcxc=; b=jRXDudfEEAj/73 wBjZ2cazMcTDEwIOUahHyouG15olelOecldn9iUfQUuUdqibijFYqi0KJozieG5HPNkrYYCzVcO5I OzIi/rXamnMYy5vPjc0JvqGsw40zD5INcPZzKTY52Tn5UHz0yFPVa8DBoCkg7pw/3XuvL0BRX3WyL 4kSuImjmBEgG2vXMuEq03VrDPZcSTvntaEUAIRqJ39qfgeUMeAZ4a17QcK66tPp6hZNTmtMQTf9m5 zvBIa5fbBF3sT2RLfBdr/P1Yl+TcpBw86k0RhCmRklwaHj4L5kOsXo06cZxZmEPEjofeOnZQQMs4/ YtvPMOPucdAek1s3XAOw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ob2sR-00C2Ky-7x; Wed, 21 Sep 2022 16:47:11 +0000 Received: from mail-wm1-x32b.google.com ([2a00:1450:4864:20::32b]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ob2sM-00C2Hu-To for linux-riscv@lists.infradead.org; Wed, 21 Sep 2022 16:47:09 +0000 Received: by mail-wm1-x32b.google.com with SMTP id l8so4881690wmi.2 for ; Wed, 21 Sep 2022 09:47:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rivosinc-com.20210112.gappssmtp.com; s=20210112; h=cc:to:subject:message-id:date:from:mime-version:from:to:cc:subject :date; bh=IaicDJv7f5Dt9tD+h7CLRz4v0jAjgSVUGTvRxbodkhg=; b=3sU0tPRItlL5eswzbcZrS4epiOJWfRU+1EV1iop2VTBj6puiryrMUEyPJFqxe0BnA+ aVN+YAx5VmmRkK0ihSj8MfVf2mBL90mxb7iJMsgQYnNIddO2fYS/5ksgSXZ0m/jllPhA XGIG6JJLAbnzlUXXB29J0C0yC+uLpLcygnr5NM7uPj/0XnAZVD42sQ4C6bwDK83qhfcD MKahRQP7U4qXuxN1OiJA7BzLcYZXfvJJX9isG6W7r48g1sHqHZpVOfgiH873L18YgbKw fsO3AtOY+YqEAZi4TegCZVejeFph7xDeKxwGpgIeGR+r7+b6yidK3HiOVsDlJkUzXnk/ LOLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:mime-version:x-gm-message-state :from:to:cc:subject:date; bh=IaicDJv7f5Dt9tD+h7CLRz4v0jAjgSVUGTvRxbodkhg=; b=poIiwAEy+EFlreXHc5sMca9Ay81o3SydQ5NIRgcrzjOfQotGqCRBZhQenB2XQWB1LR TyfR30MDTFvlJL2ohMje80kuWxrlL7Ib/JAPU1XD4Yk2vLhkualFJFSa7xE6vvjE2SuU uYLNlX4uEKcfqAHU2h/iLoM1UtrX4ADDUMosdAdeesmLZIdbeUt/HxsNwb9nFmElpJsd U7QGQHAD7chx4fdhIdpolgX1gGA0nTKZVur1Q/nbH1rSwZKJ+pQhch8gS4HA4vzBNVw3 ExuVoWoYQ51AuS8rzErbg3eI1ilcFqCWvZ2azB/AP0KPw5JFExuRUNdCQU1+mYE0y2vI t72w== X-Gm-Message-State: ACrzQf2+FlMPgJiZEVmMwPWUkf3OaOxWZ93HyP3Pdskt8Mu4OUFCGd94 o5dESZAIF8VdJt3QjvKBjnLpX+gJGfzSj9tyW8hLrbHcI8Burg== X-Google-Smtp-Source: AMsMyM5nEL3KU8p8Dn2FopGVo+1ah3Jp+xENkt72+BNWlaGcks0EoborsXg8xdnM+ntSybWhhrpbfpKhFvD9l5+Ypew= X-Received: by 2002:a05:600c:1c84:b0:3b3:ef37:afd3 with SMTP id k4-20020a05600c1c8400b003b3ef37afd3mr6312674wms.155.1663778822974; Wed, 21 Sep 2022 09:47:02 -0700 (PDT) MIME-Version: 1.0 From: Chris Stillson Date: Wed, 21 Sep 2022 09:46:27 -0700 Message-ID: Subject: [PATCH 02/17] riscv: Extending cpufeature.c to detect V-extension To: linux-riscv@lists.infradead.org Cc: palmer@dabbelt.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220921_094706_990940_DB93AF25 X-CRM114-Status: UNSURE ( 8.91 ) 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 Current cpufeature.c doesn't support detecting V-extension, because "rv64" also contain a 'v' letter and we need to skip it. Signed-off-by: Guo Ren Signed-off-by: Guo Ren Reviewed-by: Anup Patel Reviewed-by: Greentime Hu Signed-off-by: Greentime Hu Reviewed-by: Palmer Dabbelt --- arch/riscv/include/uapi/asm/hwcap.h | 1 + arch/riscv/kernel/cpufeature.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/riscv/include/uapi/asm/hwcap.h b/arch/riscv/include/uapi/asm/hwcap.h index 46dc3f5ee99f..c52bb7bbbabe 100644 --- a/arch/riscv/include/uapi/asm/hwcap.h +++ b/arch/riscv/include/uapi/asm/hwcap.h @@ -21,5 +21,6 @@ #define COMPAT_HWCAP_ISA_F (1 << ('F' - 'A')) #define COMPAT_HWCAP_ISA_D (1 << ('D' - 'A')) #define COMPAT_HWCAP_ISA_C (1 << ('C' - 'A')) +#define COMPAT_HWCAP_ISA_V (1 << ('V' - 'A')) #endif /* _UAPI_ASM_RISCV_HWCAP_H */ diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 553d755483ed..8d4448c2d4f4 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -83,6 +83,7 @@ void __init riscv_fill_hwcap(void) isa2hwcap['f'] = isa2hwcap['F'] = COMPAT_HWCAP_ISA_F; isa2hwcap['d'] = isa2hwcap['D'] = COMPAT_HWCAP_ISA_D; isa2hwcap['c'] = isa2hwcap['C'] = COMPAT_HWCAP_ISA_C; + isa2hwcap['v'] = isa2hwcap['V'] = COMPAT_HWCAP_ISA_V; elf_hwcap = 0; -- 2.25.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv