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 8CF8F4D8D9C; Wed, 22 Jul 2026 15:31:09 +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=1784734271; cv=none; b=bjl3oLWu2usy1QjmhP9mwNHbYKji0Tvop3gzbuHrtrSKkGobyN3fdLp/9nn4C8XyBNtnLEgz1TiEbYGzRClsWTEsRwT52M2tj8c23qaQk/DmfriyBzDjLipTsEOHT5KxQr0t7R2HaLMXRlsT1wfhf4tKPxnGlOImq4vopy8MQBw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784734271; c=relaxed/simple; bh=j0suFj/k8Gjr4NVwWjc1PSJ1cuCmTYQ6kxO/jY4zAXM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=mnKG6NRHy2I86a24GPT86/OK4lKupjzJdnwam1jkKRGzV7Mp4gD1tkTHXFZ8uZKUp9b2D0D2tIbrLv9KSNkaOszOhxCU3elqfH3KE6ZqOoJPOLPC0BmjE4d4Qs1TU3vJeHcv40ZYZhxASvVe/McebFgVt77BNxa64eRVah49un0= 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=bYolj3D9; 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="bYolj3D9" 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 C53141595; Wed, 22 Jul 2026 08:31:04 -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 2C0253F66F; Wed, 22 Jul 2026 08:31:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1784734268; bh=j0suFj/k8Gjr4NVwWjc1PSJ1cuCmTYQ6kxO/jY4zAXM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=bYolj3D92O1Bkcb60RbrELEOeLxC7qGiqrMWoWtuCVK9o1rROA8BeSTEehzqczBjF eYwaWgknouSSn8Jr4x8hjddfjdjfPza4khbR2hWMic7OBD53WOHQBqO1G9dCqsrvXW gFBujbdyV1Mk5pLV6+vLyHnOJZ3ZEHNvXsqCp0Ew= From: Yeoreum Yun Date: Wed, 22 Jul 2026 16:30:12 +0100 Subject: [PATCH RFC v2 04/20] LoongArch: mm: define pud_leaf() only when PUD exists 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: <20260722-dummy_ptxp3-v2-4-d9e4bad31e0a@arm.com> References: <20260722-dummy_ptxp3-v2-0-d9e4bad31e0a@arm.com> In-Reply-To: <20260722-dummy_ptxp3-v2-0-d9e4bad31e0a@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=985; i=yeoreum.yun@arm.com; h=from:subject:message-id; bh=XSgg9DU4z+fpwZlmcppVFAW3W7NViUDDiwwjek4Nc8g=; b=owEB7QES/pANAwAKAW3Vw9FaxTEzAcsmYgBqYOIRg3ZFYgpHwFK1On9j8uxrxy90og7ahILe6 1yqnuhRWRWJAbMEAAEKAB0WIQQtg+CS3QUzuFh1pJ1t1cPRWsUxMwUCamDiEQAKCRBt1cPRWsUx M1QWDACgUOyq20o0bRU6YzrYy+b7sre2Ng1kMqamUWE3FtJ3UDmIzrC5o6Iq/xiJuQ3V8mER2+u sevnTIQQr89vZ9/I5k+KZosUXZ7NfZlvXH+uxw6usioIMN8Efb/0o7XAhncpDgnrhz0jqJReJ0c 1FeAfWsc6PjjC+VCtxvXVgha6Xl8aEoKHnRFFsFgjeWCpMSQSvWE5cvMWaPhrkMA8dipKjE9B3n uJJ9l4UBtZuIa+OiF0higvwhEHRNZWiJvfJBssIZRq4J+qNjYnJmWaAfiiEEJtExocw3XkhHcZR bMflTxQkLe50zAegke/F3vuVZzXG0oSAyz5bDqzjnCYTY0YLf4L4C+PVKcIeOg8L1CMkgY7ZuAs jzmsrFaiIVlZeT+2qxJHempmPcEYOFmjrXOS+OlUA39p1kZ8vQzlvLM63vb4Ync4R1M4lQ7dOhq guDP4rJuLCL73MzRDrsWdrcsvjAB/6UlAUTfuSNeyvc4TBQH32QYx3FAtAbKB/T/1YZiE= X-Developer-Key: i=yeoreum.yun@arm.com; a=openpgp; fpr=2D83E092DD0533B85875A49D6DD5C3D15AC53133 From: "David Hildenbrand (Arm)" In include/asm-generic/pgtable-nopmd.h, we do have a hard-coded pud_leaf()=false inline function, but we miss the "define pud_leaf pud_leaf" part. To prepare for fixing that, define pud_leaf() only if we don't have __PAGETABLE_PMD_FOLDED. Signed-off-by: David Hildenbrand (Arm) --- arch/loongarch/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h index 1952e34bc8ee..434e5b483466 100644 --- a/arch/loongarch/include/asm/pgtable.h +++ b/arch/loongarch/include/asm/pgtable.h @@ -636,7 +636,9 @@ static inline long pmd_protnone(pmd_t pmd) #endif /* CONFIG_ARCH_HAS_PTE_PROTNONE */ #define pmd_leaf(pmd) ((pmd_val(pmd) & _PAGE_HUGE) != 0) +#ifndef __PAGETABLE_PMD_FOLDED #define pud_leaf(pud) ((pud_val(pud) & _PAGE_HUGE) != 0) +#endif /* * We provide our own get_unmapped area to cope with the virtual aliasing -- 2.43.0