From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from xry111.site (xry111.site [89.208.246.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C45A51D5147 for ; Fri, 12 Dec 2025 04:12:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=89.208.246.23 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765512776; cv=none; b=Wu5qTn63g6E+f4BgfksPcsCUvw38JtAZIlPrRYgtmDcmALgk9yfz/b15B3NkOe72KCuspUacpVPWym0UTCmLuqw7Qla0iKHnqfrsilld+xMqzsBi7afLgUvNx8S9+NZRuEoBV1t6ZeU0cthtVWyV8mVzjb/k/mB11h/eray/N7M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765512776; c=relaxed/simple; bh=XBYQcN7/C0qpBWKKISxo0FEn34Gsp9RL3chPdwdD+aA=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=I6PuxaHtupZnTDusrxbuBIH5zO6q9qgOT5iLTv0/Q68uWeKwZ3mzWBEGHJ6XI06h66TLXAcfFLyuu3GPVWR4Snq8vI3JdbmiVjiTmqgtm70gG95y9Bi5FIIQZbsGg/X1o3roVl/kd3mAnI74G+GD5OxFIEpZQnLoR/08V2FRO3c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=xry111.site; spf=pass smtp.mailfrom=xry111.site; dkim=pass (1024-bit key) header.d=xry111.site header.i=@xry111.site header.b=G2OzbtKS; arc=none smtp.client-ip=89.208.246.23 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=xry111.site Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=xry111.site Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=xry111.site header.i=@xry111.site header.b="G2OzbtKS" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=xry111.site; s=default; t=1765512766; bh=fOCXV5tK1dwOHv43z7DCfxRdJC/CB67r2cWZxgUH/bM=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=G2OzbtKSkJPcB+3inb+K81KfTpR/Dio1hcnMVU+bQLW+S2hKhPdNef1FitT/8uR8B rO2+Q8ij9dVNl8jBLyYdXiawKwmZDbWEvO02ybX4vGDV2NnAYZreobOes4INL+slWK RGNxZ5OAPKKJ7YkbP7rHYu5TZmWCtTXzEBV0L6J4= Received: from [127.0.0.1] (2607-8700-5500-e873-0000-0000-0000-1001.16clouds.com [IPv6:2607:8700:5500:e873::1001]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature ECDSA (secp384r1) server-digest SHA384) (Client did not present a certificate) (Authenticated sender: xry111@xry111.site) by xry111.site (Postfix) with ESMTPSA id 5E5F76697B; Thu, 11 Dec 2025 23:12:43 -0500 (EST) Message-ID: Subject: Re: [PATCH v5 1/4] LoongArch: Add SCQ support detection From: Xi Ruoyao To: George Guo , Huacai Chen , WANG Xuerui , hengqi.chen@gmail.com Cc: r@hev.cc, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, George Guo , Yangyang Lian Date: Fri, 12 Dec 2025 12:12:41 +0800 In-Reply-To: <20251212-2-v5-1-704b3af55f7d@linux.dev> References: <20251212-2-v5-0-704b3af55f7d@linux.dev> <20251212-2-v5-1-704b3af55f7d@linux.dev> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 On Fri, 2025-12-12 at 11:55 +0800, George Guo wrote: > diff --git a/arch/loongarch/kernel/cpu-probe.c b/arch/loongarch/kernel/cp= u-probe.c > index a2060a24b39fd78fa255816fa5518e0ee99b8a8e..47815a55b7b48bbffd4954a9b= 8bdf7021d7e234d 100644 > --- a/arch/loongarch/kernel/cpu-probe.c > +++ b/arch/loongarch/kernel/cpu-probe.c > @@ -201,6 +201,10 @@ static void cpu_probe_common(struct cpuinfo_loongarc= h *c) > =C2=A0 c->options |=3D LOONGARCH_CPU_PTW; > =C2=A0 elf_hwcap |=3D HWCAP_LOONGARCH_PTW; > =C2=A0 } > + if (config & CPUCFG2_SCQ) > + c->options |=3D LOONGARCH_CPU_SCQ; > + else > + pr_warn_once("CPU does NOT support SCQ\n"); IMO this should be a pr_info_once. CPU lacks SCQ is not anything wrong thus this shouldn't be a warning. > =C2=A0 if (config & CPUCFG2_LSPW) { > =C2=A0 c->options |=3D LOONGARCH_CPU_LSPW; > =C2=A0 elf_hwcap |=3D HWCAP_LOONGARCH_LSPW; --=20 Xi Ruoyao