From nobody Sun Feb 8 15:29:26 2026 Received: from out-173.mta1.migadu.com (out-173.mta1.migadu.com [95.215.58.173]) (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 CAB8C2F290B for ; Wed, 31 Dec 2025 03:45:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767152740; cv=none; b=bVcU5dr+EGNmj/Q/d9U7+XYVMZQ32yb9lV23AFjbk9qTpripvjB8LzlIYgxo1vBQfYYwstPm0vqR3y1REy2nR8Q93jGkcTapKNvey9C8uz6QVH27qgI2+MW54fHRItsrSu89xAnzj6S7konPu+cHPMLA8g37o3l4nUqIO5x9nE8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767152740; c=relaxed/simple; bh=sxTP2oXXUnc5NysmI2N+EZ1bqhsGfXhqVJPVELj4s9Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Rx9u3t12Jia4Csvey8l3nxChCaJV8qdStEnD0coqsgNFcIKGb7HJOkGHR6k1/CK0ad68KlLsya0qapi5mb7Q2egzzqvQPhlLZLqRwOFjxYAHRXOMkcqJyiyRqKKJa4ikjP4xZ1YFGVmecOKK4rWQ96R/0kvPA/oczSRckGaIlgc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=OV85iR8K; arc=none smtp.client-ip=95.215.58.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="OV85iR8K" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1767152737; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PqpeETFJkzNuoFoanCBY+LFS018RYhS6I82D9WQGSDc=; b=OV85iR8KBGbrdZ+m+1p7Sr7AwqQkRY1v1yrNwDddheK74m/bKJ4Nk6z0EyGMXS5zqvUnEI bmoT4p4lsCDBOz4y3oq+iKBxbSJiEIxZVt0nBW65KDii4TQE5mdooQVBINNmB57I8tqJlh D+xcX1QyUodNoB59sWStcH4t7goSt1c= From: George Guo To: hengqi.chen@gmail.com Cc: chenhuacai@kernel.org, dongtai.guo@linux.dev, guodongtai@kylinos.cn, kernel@xen0n.name, lianyangyang@kylinos.cn, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, r@hev.cc, xry111@xry111.site Subject: [PATCH v8 loongarch-next 3/3] LoongArch: Enable 128-bit atomics cmpxchg support Date: Wed, 31 Dec 2025 11:45:23 +0800 Message-ID: <20251231034523.47014-4-dongtai.guo@linux.dev> In-Reply-To: <20251231034523.47014-1-dongtai.guo@linux.dev> References: <20251231034523.47014-1-dongtai.guo@linux.dev> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Content-Type: text/plain; charset="utf-8" From: George Guo Add select HAVE_CMPXCHG_DOUBLE and select HAVE_ALIGNED_STRUCT_PAGE in Kconf= ig to enable 128-bit atomic cmpxchg support on LoongArch. Signed-off-by: George Guo Reviewed-by: Hengqi Chen Tested-by: Hengqi Chen --- arch/loongarch/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 730f34214519..f9845ebec1a4 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -114,6 +114,7 @@ config LOONGARCH select GENERIC_TIME_VSYSCALL select GPIOLIB select HAS_IOPORT + select HAVE_ALIGNED_STRUCT_PAGE select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_BITREVERSE select HAVE_ARCH_JUMP_LABEL @@ -130,6 +131,7 @@ config LOONGARCH select HAVE_ARCH_TRANSPARENT_HUGEPAGE select HAVE_ARCH_USERFAULTFD_MINOR if USERFAULTFD select HAVE_ASM_MODVERSIONS + select HAVE_CMPXCHG_DOUBLE select HAVE_CONTEXT_TRACKING_USER select HAVE_C_RECORDMCOUNT select HAVE_DEBUG_KMEMLEAK --=20 2.49.0