linux-kernel - [PATCH v1 01/11] arm/pgtable: define PFN_PTE

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Message-ID: <20240122194200.381241-2-david@redhat.com>
Date: Mon, 22 Jan 2024 20:41:50 +0100
From: David Hildenbrand <david@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: linux-mm@...ck.org,
	David Hildenbrand <david@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Matthew Wilcox <willy@...radead.org>,
	Ryan Roberts <ryan.roberts@....com>,
	Russell King <linux@...linux.org.uk>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Dinh Nguyen <dinguyen@...nel.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	"Aneesh Kumar K.V" <aneesh.kumar@...nel.org>,
	"Naveen N. Rao" <naveen.n.rao@...ux.ibm.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
	Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Christian Borntraeger <borntraeger@...ux.ibm.com>,
	Sven Schnelle <svens@...ux.ibm.com>,
	"David S. Miller" <davem@...emloft.net>,
	linux-arm-kernel@...ts.infradead.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-riscv@...ts.infradead.org,
	linux-s390@...r.kernel.org,
	sparclinux@...r.kernel.org
Subject: [PATCH v1 01/11] arm/pgtable: define PFN_PTE_SHIFT on arm and arm64

We want to make use of pte_next_pfn() outside of set_ptes(). Let's
simpliy define PFN_PTE_SHIFT, required by pte_next_pfn().

Signed-off-by: David Hildenbrand <david@...hat.com>
---
 arch/arm/include/asm/pgtable.h   | 2 ++
 arch/arm64/include/asm/pgtable.h | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index d657b84b6bf70..be91e376df79e 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -209,6 +209,8 @@ static inline void __sync_icache_dcache(pte_t pteval)
 extern void __sync_icache_dcache(pte_t pteval);
 #endif
 
+#define PFN_PTE_SHIFT		PAGE_SHIFT
+
 void set_ptes(struct mm_struct *mm, unsigned long addr,
 		      pte_t *ptep, pte_t pteval, unsigned int nr);
 #define set_ptes set_ptes
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 79ce70fbb751c..d4b3bd96e3304 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -341,6 +341,8 @@ static inline void __sync_cache_and_tags(pte_t pte, unsigned int nr_pages)
 		mte_sync_tags(pte, nr_pages);
 }
 
+#define PFN_PTE_SHIFT		PAGE_SHIFT
+
 static inline void set_ptes(struct mm_struct *mm,
 			    unsigned long __always_unused addr,
 			    pte_t *ptep, pte_t pte, unsigned int nr)
-- 
2.43.0