From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 805384756C7; Mon, 14 Sep 2026 13:52:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789393944; cv=none; b=DngTh9fFf4iNwHC4VWkQDsCRHfVjcdWjYduMnmJsLLL5drNnYb94XF4wrFdpscaP8WRKTkUEfeDbTXbyug1yRIzmze7unELYjVBYIO1DGJAQRrgrX96bMAviOl/6RY5/5imELjcYGinymrrhWVwFF0JGcZN1TYfvYOUsWk8RD/A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789393944; c=relaxed/simple; bh=shLHKCHn3ZdXre7hsjCS5Jwr6cqRreukZfraeH8Cy3s=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=LR5SiH/dqQT5ww5dl1/9dHnYT8ee5Pd6vLsECIKuOxlSkuJ8yNgVa4/Tqu2UEHYCkbIOO+RCkSj0WdTVSKoGyLilD5TR2zN8KXmBjWdfy7hcbtHPvK1NEPWUBmVHIbJIEJ7UIz4qFYZiStFSnYFssjx+HempysEpJHJSEMoN4R8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=VxM1nVkm; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="VxM1nVkm" 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 D668A1570; Mon, 14 Sep 2026 06:52:15 -0700 (PDT) Received: from [127.0.1.1] (e142334-100.cambridge.arm.com [10.2.198.93]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3FF1A3F882; Mon, 14 Sep 2026 06:52:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1789393939; bh=shLHKCHn3ZdXre7hsjCS5Jwr6cqRreukZfraeH8Cy3s=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=VxM1nVkmYNPpjHBF/3TyegZsi3gXy2y2TPeff4ji5cA2NOgdRBg5Ne4BamFW32epl YgRiY41HrMSGBYlXBxqXq02UzbkG0f0IOxJzTyytmQEgFIuWVkudJF3DN5r+KpdL8C 9EM6umX4vRSY4FuskG1d6abnjmKoyuwOeT6yCXww= From: Muhammad Usama Anjum Date: Mon, 14 Sep 2026 14:51:34 +0100 Subject: [PATCH 4/6] arm64: use hw_pte_t for fixmap HW PTEs Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260914-pte0_arm-v1-4-bb53b663e396@arm.com> References: <20260914-pte0_arm-v1-0-bb53b663e396@arm.com> In-Reply-To: <20260914-pte0_arm-v1-0-bb53b663e396@arm.com> To: Catalin Marinas , Will Deacon , Mark Rutland , Ard Biesheuvel , Ilias Apalodimas , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, kasan-dev@googlegroups.com, linux-mm@kvack.org, Muhammad Usama Anjum X-Mailer: b4 0.16.0 fixmap_pte() returns a pointer into bm_pte, and early_fixmap_init_pte() installs those arrays as page tables. Their elements are therefore HW PTEs. Change the element type of bm_pte to hw_pte_t so it matches the HW PTE pointers returned and passed to the accessors. This is needed before ARCH_HAS_HW_PTE_T makes HW PTEs and SW PTE values distinct types; the array dimensions and placement are unchanged. Signed-off-by: Muhammad Usama Anjum --- arch/arm64/mm/fixmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/mm/fixmap.c b/arch/arm64/mm/fixmap.c index 237a9136bc73b..709a97fe327d8 100644 --- a/arch/arm64/mm/fixmap.c +++ b/arch/arm64/mm/fixmap.c @@ -31,7 +31,7 @@ static_assert(NR_BM_PMD_TABLES == 1); #define BM_PTE_TABLE_IDX(addr) __BM_TABLE_IDX(addr, PMD_SHIFT) -static pte_t bm_pte[NR_BM_PTE_TABLES][PTRS_PER_PTE] __bss_pgtbl; +static hw_pte_t bm_pte[NR_BM_PTE_TABLES][PTRS_PER_PTE] __bss_pgtbl; static pmd_t bm_pmd[PTRS_PER_PMD] __bss_pgtbl __maybe_unused; static pud_t bm_pud[PTRS_PER_PUD] __bss_pgtbl __maybe_unused; -- 2.47.3