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From: Andrew Donnellan <ajd@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org
Cc: akpm@linux-foundation.org, x86@kernel.org,
	linux-riscv@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, pasha.tatashin@soleen.com,
	sweettea-kernel@dorminy.me, nicholas@linux.ibm.com,
	christophe.leroy@csgroup.eu, alexghiti@rivosinc.com
Subject: [PATCH v17 02/12] arm64/mm: Add addr parameter to __ptep_get_and_clear_anysz()
Date: Tue,  9 Sep 2025 19:13:25 +1000	[thread overview]
Message-ID: <20250909091335.183439-3-ajd@linux.ibm.com> (raw)
In-Reply-To: <20250909091335.183439-1-ajd@linux.ibm.com>

To provide support for page table check on powerpc, we need to reinstate the
address parameter in several functions, including
page_table_check_{pte,pmd,pud}_clear().

In preparation for this, add the addr parameter to arm64's
__ptep_get_and_clear_anysz() and change its callsites accordingly.

Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
---
v15: new patch
---
 arch/arm64/include/asm/pgtable.h | 5 +++--
 arch/arm64/mm/hugetlbpage.c      | 7 ++++---
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index ed644be48d87..66b5309fcad8 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -1357,6 +1357,7 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG */
 
 static inline pte_t __ptep_get_and_clear_anysz(struct mm_struct *mm,
+					       unsigned long address,
 					       pte_t *ptep,
 					       unsigned long pgsize)
 {
@@ -1384,7 +1385,7 @@ static inline pte_t __ptep_get_and_clear_anysz(struct mm_struct *mm,
 static inline pte_t __ptep_get_and_clear(struct mm_struct *mm,
 				       unsigned long address, pte_t *ptep)
 {
-	return __ptep_get_and_clear_anysz(mm, ptep, PAGE_SIZE);
+	return __ptep_get_and_clear_anysz(mm, address, ptep, PAGE_SIZE);
 }
 
 static inline void __clear_full_ptes(struct mm_struct *mm, unsigned long addr,
@@ -1423,7 +1424,7 @@ static inline pte_t __get_and_clear_full_ptes(struct mm_struct *mm,
 static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
 					    unsigned long address, pmd_t *pmdp)
 {
-	return pte_pmd(__ptep_get_and_clear_anysz(mm, (pte_t *)pmdp, PMD_SIZE));
+	return pte_pmd(__ptep_get_and_clear_anysz(mm, address, (pte_t *)pmdp, PMD_SIZE));
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 1003b5020752..bcc28031eb7a 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -159,11 +159,12 @@ static pte_t get_clear_contig(struct mm_struct *mm,
 	pte_t pte, tmp_pte;
 	bool present;
 
-	pte = __ptep_get_and_clear_anysz(mm, ptep, pgsize);
+	pte = __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
 	present = pte_present(pte);
 	while (--ncontig) {
 		ptep++;
-		tmp_pte = __ptep_get_and_clear_anysz(mm, ptep, pgsize);
+		addr += pgsize;
+		tmp_pte = __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
 		if (present) {
 			if (pte_dirty(tmp_pte))
 				pte = pte_mkdirty(pte);
@@ -207,7 +208,7 @@ static void clear_flush(struct mm_struct *mm,
 	unsigned long i, saddr = addr;
 
 	for (i = 0; i < ncontig; i++, addr += pgsize, ptep++)
-		__ptep_get_and_clear_anysz(mm, ptep, pgsize);
+		__ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
 
 	if (mm == &init_mm)
 		flush_tlb_kernel_range(saddr, addr);
-- 
2.51.0



WARNING: multiple messages have this Message-ID (diff)
From: Andrew Donnellan <ajd@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org
Cc: akpm@linux-foundation.org, x86@kernel.org,
	linux-riscv@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, pasha.tatashin@soleen.com,
	sweettea-kernel@dorminy.me, nicholas@linux.ibm.com,
	christophe.leroy@csgroup.eu, alexghiti@rivosinc.com
Subject: [PATCH v17 02/12] arm64/mm: Add addr parameter to __ptep_get_and_clear_anysz()
Date: Tue,  9 Sep 2025 19:13:25 +1000	[thread overview]
Message-ID: <20250909091335.183439-3-ajd@linux.ibm.com> (raw)
In-Reply-To: <20250909091335.183439-1-ajd@linux.ibm.com>

To provide support for page table check on powerpc, we need to reinstate the
address parameter in several functions, including
page_table_check_{pte,pmd,pud}_clear().

In preparation for this, add the addr parameter to arm64's
__ptep_get_and_clear_anysz() and change its callsites accordingly.

Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
---
v15: new patch
---
 arch/arm64/include/asm/pgtable.h | 5 +++--
 arch/arm64/mm/hugetlbpage.c      | 7 ++++---
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index ed644be48d87..66b5309fcad8 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -1357,6 +1357,7 @@ static inline int pmdp_test_and_clear_young(struct vm_area_struct *vma,
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG */
 
 static inline pte_t __ptep_get_and_clear_anysz(struct mm_struct *mm,
+					       unsigned long address,
 					       pte_t *ptep,
 					       unsigned long pgsize)
 {
@@ -1384,7 +1385,7 @@ static inline pte_t __ptep_get_and_clear_anysz(struct mm_struct *mm,
 static inline pte_t __ptep_get_and_clear(struct mm_struct *mm,
 				       unsigned long address, pte_t *ptep)
 {
-	return __ptep_get_and_clear_anysz(mm, ptep, PAGE_SIZE);
+	return __ptep_get_and_clear_anysz(mm, address, ptep, PAGE_SIZE);
 }
 
 static inline void __clear_full_ptes(struct mm_struct *mm, unsigned long addr,
@@ -1423,7 +1424,7 @@ static inline pte_t __get_and_clear_full_ptes(struct mm_struct *mm,
 static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
 					    unsigned long address, pmd_t *pmdp)
 {
-	return pte_pmd(__ptep_get_and_clear_anysz(mm, (pte_t *)pmdp, PMD_SIZE));
+	return pte_pmd(__ptep_get_and_clear_anysz(mm, address, (pte_t *)pmdp, PMD_SIZE));
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c
index 1003b5020752..bcc28031eb7a 100644
--- a/arch/arm64/mm/hugetlbpage.c
+++ b/arch/arm64/mm/hugetlbpage.c
@@ -159,11 +159,12 @@ static pte_t get_clear_contig(struct mm_struct *mm,
 	pte_t pte, tmp_pte;
 	bool present;
 
-	pte = __ptep_get_and_clear_anysz(mm, ptep, pgsize);
+	pte = __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
 	present = pte_present(pte);
 	while (--ncontig) {
 		ptep++;
-		tmp_pte = __ptep_get_and_clear_anysz(mm, ptep, pgsize);
+		addr += pgsize;
+		tmp_pte = __ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
 		if (present) {
 			if (pte_dirty(tmp_pte))
 				pte = pte_mkdirty(pte);
@@ -207,7 +208,7 @@ static void clear_flush(struct mm_struct *mm,
 	unsigned long i, saddr = addr;
 
 	for (i = 0; i < ncontig; i++, addr += pgsize, ptep++)
-		__ptep_get_and_clear_anysz(mm, ptep, pgsize);
+		__ptep_get_and_clear_anysz(mm, addr, ptep, pgsize);
 
 	if (mm == &init_mm)
 		flush_tlb_kernel_range(saddr, addr);
-- 
2.51.0


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  parent reply	other threads:[~2025-09-09 10:43 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-09  9:13 [PATCH v17 00/12] Support page table check on PowerPC Andrew Donnellan
2025-09-09  9:13 ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 01/12] arm64/mm: Add addr parameter to __set_ptes_anysz() Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` Andrew Donnellan [this message]
2025-09-09  9:13   ` [PATCH v17 02/12] arm64/mm: Add addr parameter to __ptep_get_and_clear_anysz() Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 03/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud[s]_set() Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 04/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd[s]_set() Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 05/12] mm/page_table_check: Provide addr parameter to page_table_check_ptes_set() Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 06/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pud_clear() Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 07/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pmd_clear() Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 08/12] mm/page_table_check: Reinstate address parameter in [__]page_table_check_pte_clear() Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 09/12] mm: Provide address parameter to p{te,md,ud}_user_accessible_page() Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 10/12] powerpc: mm: Implement *_user_accessible_page() for ptes Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 11/12] powerpc: mm: Use set_pte_at_unchecked() for internal usages Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-09  9:13 ` [PATCH v17 12/12] powerpc: mm: Support page table check Andrew Donnellan
2025-09-09  9:13   ` Andrew Donnellan
2025-09-25 22:42 ` [PATCH v17 00/12] Support page table check on PowerPC Andrew Donnellan
2025-09-25 22:42   ` Andrew Donnellan
2025-09-25 23:17   ` Andrew Morton
2025-09-25 23:17     ` Andrew Morton
2025-12-12  3:35     ` Pasha Tatashin
2025-12-12  3:35       ` Pasha Tatashin
2025-12-12  3:37       ` Andrew Donnellan
2025-12-12  3:37         ` Andrew Donnellan

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