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 AAC72C982E1 for ; Mon, 21 Sep 2026 10:56:57 +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:In-Reply-To:References:Message-Id :MIME-Version:Subject:Date:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=FHoxOtDS7u6Hw/dxKqRh5ioyunEkDfXrMOPBRsrSFcY=; b=svU0PbeODnUB41 wJkJKFvk8MQBQtOAmsJQWZkoD8C1cFcX+LZ88MlVjstQSX0ctdn2RbrvxB4dn09ZlyhpOR3znx8Tf VNj4+cHVnPp7ShWteCiJG45kcNhKp4+TX0/EwCI6dogF6iThphdprkN6U3pq0I7js9uvFVbEMcUZY fxQMFGRsc3jtOxFMIB4NJ49JVgain/2VWg0/NNXlM6E47GbCdxKlPBJICtdTp+AZRmJzJiZOAn2SS +3N4OCak9i/EpiYu5njBOlGno3k7Sm+Sne2hH+ydACS0xg9KrPNuB7d2F4j6LmWjOitS1qqyu571T bstlZMy+08lJPJBCrHJQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x8bhT-00000001lW2-3Mpm; Mon, 21 Sep 2026 10:56:43 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x8bhN-00000001lSt-1EBY; Mon, 21 Sep 2026 10:56:41 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 1B0511D13; Mon, 21 Sep 2026 03:56:33 -0700 (PDT) Received: from e129823.arm.com (e129823.arm.com [10.2.213.3]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7B6A43F86C; Mon, 21 Sep 2026 03:56:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1789988196; bh=vEzrqCWaH6sVkcTMp6OI/QOpWZT9yXWBiNbXxiv6lmA=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=LoVIGTLgqzJ/qsqv8y1uGB4x3jrgj3tiInD07+v3on40VZbIKUJCAuRuyG/NV29tp 2kYvHL/ObZV5edLNO5Ve1LLYQoVIgW623hWmFpOHtD/L2MkwE2PM9UirSqKqtoX4Rd H6xBWMlbZQB3YaYeY2mpGRniH91/tkMG7ynZ8B04= From: Yeoreum Yun Date: Mon, 21 Sep 2026 11:55:23 +0100 Subject: [PATCH 01/21] ARM: mm: make nommu pgd_t a scalar MIME-Version: 1.0 Message-Id: <20260921-dummy_ptxp3-v1-1-cd40cf68242e@arm.com> References: <20260921-dummy_ptxp3-v1-0-cd40cf68242e@arm.com> In-Reply-To: <20260921-dummy_ptxp3-v1-0-cd40cf68242e@arm.com> To: Russell King , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Catalin Marinas , Will Deacon , Arnd Bergmann , Andrew Morton , Kairui Song , Qi Zheng , Shakeel Butt , Barry Song , Axel Rasmussen , Yuanchu Xie , Wei Xu , Johannes Weiner , David Hildenbrand , Michal Hocko , Lorenzo Stoakes , Tianrui Zhao , Bibo Mao , Anup Patel , Atish Patra , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org, "H. Peter Anvin" , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Jonas Bonn , Stefan Kristiansson , Stafford Horne Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-openrisc@vger.kernel.org X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1081; i=yeoreum.yun@arm.com; h=from:subject:message-id; bh=ODmKgHrv0SlU2okc3grPddikJ1BO4DLAINSWVDYQruI=; b=owEB7QES/pANAwAKAW3Vw9FaxTEzAcsmYgBqsQ1LlWiizi4t012wrwJwrwJTjWi/Wb29nF79i J4qQoShg02JAbMEAAEKAB0WIQQtg+CS3QUzuFh1pJ1t1cPRWsUxMwUCarENSwAKCRBt1cPRWsUx MweXDADISibCvJvF96puZBjP6/j4fMPKgIlf5MS3C5eSagiY6JFxwj3lAIkbhiPFMPYCnHBJnoL 2GA0NpEJpJyNWbhsAV12S4u7OvsEXVxhwfJkIzZS58W9csiUCIZFEIJeeoRnQzGnOFzFUkakRVx qkc8XmG8/eJznmc+Dxlnulm0n2bZYi5j54S/rQd/Ikdo5m9A+FMeYf04ijW4O0svRQScvjMFPe6 kVraASsRz5EGbbRfoH4SMzCaalxthaqxKHBUq7g+H588eoHoKXinUFv1W98H6pqtwKWe5asm+To Eq0zBQRFHajwr8D6LBzww0jQnu+df2It+l03o7y/78Q44wTlBaVaUJDhnjb5Pdeawtwtx9Z7aj8 duzExW/pl4kS3fr3Qof0bszw06VRUoqAUgb0W9KH9UoDBlwrzFdOABfQtidFW/gnhWEAX7o8d6b xzsbDSxkRRzb2wd4Lxch76ZEGXJe1I90lQHqznhSf5wCWubXXZK8jVHUqdjrcZKH73914= X-Developer-Key: i=yeoreum.yun@arm.com; a=openpgp; fpr=2D83E092DD0533B85875A49D6DD5C3D15AC53133 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260921_035640_283048_008A02DC X-CRM114-Status: GOOD ( 12.89 ) 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 From: "David Hildenbrand (Arm)" As pgd_t is returned from a function, like pgdp_get(). pgd_t shouldn't be an array. There is no need to match the actual arm page tables, because with nommu there are no page tables. It's all just in place to make the compiler happy. Making it a scalar will make the compiler happy. So let's just use an u32. Signed-off-by: David Hildenbrand (Arm) --- arch/arm/include/asm/page-nommu.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/page-nommu.h b/arch/arm/include/asm/page-nommu.h index e74415c959bea..88659b38e2364 100644 --- a/arch/arm/include/asm/page-nommu.h +++ b/arch/arm/include/asm/page-nommu.h @@ -18,12 +18,12 @@ */ typedef unsigned long pte_t; typedef unsigned long pmd_t; -typedef unsigned long pgd_t[2]; +typedef unsigned long pgd_t; typedef unsigned long pgprot_t; #define pte_val(x) (x) #define pmd_val(x) (x) -#define pgd_val(x) ((x)[0]) +#define pgd_val(x) (x) #define pgprot_val(x) (x) #define __pte(x) (x) -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv