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 26FEFCCF9F8 for ; Mon, 3 Nov 2025 05:26:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=x+8rkRjziOmN+3IjSuDZ4VyfEqJ4yg0yoojJz1rktVc=; b=Gg+OMUpFINR/ALChQ5l9YyFj7n l1zoIZuJ1/X1NbHI3IVLIfNPkK8tGSYghOC29Xvr0qkb8iNfi/1xmbfSrQ02F26CydGZEmNnV3JyG e/bfP3gFlQ3RmbEACFENfm/DSMaVKCZ2WtZOsY1/eDHXgxOYh+kSKrANkynRuOqptc4m3FCQMbwnC 2CrBBJPuY+EHCqV+ipC9FE4k2hpXtNjTZ1O0DcUyGeUUk1LZVjYpSbzWXrdy5k9nNHXdwN/X5MryX x6JIUfNEgTiXxvrPvQv/TEfk578SgVTfE3AF3pHHbqUhrzyE8z8JSS6WBzU3LmRD0OPLXuPTRpBjx BDMfCDMA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vFn5O-00000009Dv1-2jCS; Mon, 03 Nov 2025 05:26:34 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vFn5L-00000009Dtz-2RpS for linux-arm-kernel@lists.infradead.org; Mon, 03 Nov 2025 05:26:33 +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 626E42938; Sun, 2 Nov 2025 21:26:23 -0800 (PST) Received: from ergosum.cambridge.arm.com (ergosum.cambridge.arm.com [10.1.196.45]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id CACD53F63F; Sun, 2 Nov 2025 21:26:29 -0800 (PST) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Cc: Anshuman Khandual , Catalin Marinas , Will Deacon , Ryan Roberts , Ard Biesheuvel , linux-kernel@vger.kernel.org Subject: [PATCH 3/6] arm64/mm: Represent TTBR_BADDR_MASK_52 with TTBRx_EL1_BADDR_MASK Date: Mon, 3 Nov 2025 05:26:15 +0000 Message-Id: <20251103052618.586763-4-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20251103052618.586763-1-anshuman.khandual@arm.com> References: <20251103052618.586763-1-anshuman.khandual@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251102_212631_658073_A83D4710 X-CRM114-Status: UNSURE ( 9.51 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org TTBR_BADDR_MASK_52 discards bit[1] which is RES0, when TTBRx_EL1 register contains 52 bits PA. Let's just keep the custom macro but redefine it via tools sysreg register field format TTBRx_EL1_BADDR_MASK. Cc: Catalin Marinas Cc: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Anshuman Khandual --- arch/arm64/include/asm/pgtable-hwdef.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h index f3b77deedfa2..e192c4dc624b 100644 --- a/arch/arm64/include/asm/pgtable-hwdef.h +++ b/arch/arm64/include/asm/pgtable-hwdef.h @@ -332,7 +332,7 @@ /* * TTBR_ELx[1] is RES0 in this configuration. */ -#define TTBR_BADDR_MASK_52 GENMASK_ULL(47, 2) +#define TTBR_BADDR_MASK_52 (TTBRx_EL1_BADDR_MASK & ~GENMASK(1, 1)) #endif #ifdef CONFIG_ARM64_VA_BITS_52 -- 2.30.2