From: Ryan Roberts <ryan.roberts@arm.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Ard Biesheuvel <ardb@kernel.org>,
Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Matthew Wilcox <willy@infradead.org>,
Mark Rutland <mark.rutland@arm.com>,
David Hildenbrand <david@redhat.com>,
Kefeng Wang <wangkefeng.wang@huawei.com>,
John Hubbard <jhubbard@nvidia.com>, Zi Yan <ziy@nvidia.com>,
Barry Song <21cnbao@gmail.com>,
Alistair Popple <apopple@nvidia.com>,
Yang Shi <shy828301@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>,
linux-arm-kernel@lists.infradead.org, x86@kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v6 05/18] x86/mm: Convert pte_next_pfn() to pte_advance_pfn()
Date: Thu, 15 Feb 2024 10:31:52 +0000 [thread overview]
Message-ID: <20240215103205.2607016-6-ryan.roberts@arm.com> (raw)
In-Reply-To: <20240215103205.2607016-1-ryan.roberts@arm.com>
Core-mm needs to be able to advance the pfn by an arbitrary amount, so
override the new pte_advance_pfn() API to do so.
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
---
arch/x86/include/asm/pgtable.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index b50b2ef63672..69ed0ea0641b 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -955,13 +955,13 @@ static inline int pte_same(pte_t a, pte_t b)
return a.pte == b.pte;
}
-static inline pte_t pte_next_pfn(pte_t pte)
+static inline pte_t pte_advance_pfn(pte_t pte, unsigned long nr)
{
if (__pte_needs_invert(pte_val(pte)))
- return __pte(pte_val(pte) - (1UL << PFN_PTE_SHIFT));
- return __pte(pte_val(pte) + (1UL << PFN_PTE_SHIFT));
+ return __pte(pte_val(pte) - (nr << PFN_PTE_SHIFT));
+ return __pte(pte_val(pte) + (nr << PFN_PTE_SHIFT));
}
-#define pte_next_pfn pte_next_pfn
+#define pte_advance_pfn pte_advance_pfn
static inline int pte_present(pte_t a)
{
--
2.25.1
next prev parent reply other threads:[~2024-02-15 10:32 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-15 10:31 [PATCH v6 00/18] Transparent Contiguous PTEs for User Mappings Ryan Roberts
2024-02-15 10:31 ` [PATCH v6 01/18] mm: Clarify the spec for set_ptes() Ryan Roberts
2024-02-15 10:31 ` [PATCH v6 02/18] mm: thp: Batch-collapse PMD with set_ptes() Ryan Roberts
2024-02-15 10:31 ` [PATCH v6 03/18] mm: Introduce pte_advance_pfn() and use for pte_next_pfn() Ryan Roberts
2024-02-15 10:40 ` David Hildenbrand
2024-02-15 10:31 ` [PATCH v6 04/18] arm64/mm: Convert pte_next_pfn() to pte_advance_pfn() Ryan Roberts
2024-02-15 10:42 ` David Hildenbrand
2024-02-15 11:17 ` Mark Rutland
2024-02-15 18:27 ` Catalin Marinas
2024-02-15 10:31 ` Ryan Roberts [this message]
2024-02-15 10:43 ` [PATCH v6 05/18] x86/mm: " David Hildenbrand
2024-02-15 10:31 ` [PATCH v6 06/18] mm: Tidy up pte_next_pfn() definition Ryan Roberts
2024-02-15 10:43 ` David Hildenbrand
2024-02-15 10:31 ` [PATCH v6 07/18] arm64/mm: Convert READ_ONCE(*ptep) to ptep_get(ptep) Ryan Roberts
2024-02-15 11:18 ` Mark Rutland
2024-02-15 18:34 ` Catalin Marinas
2024-02-15 10:31 ` [PATCH v6 08/18] arm64/mm: Convert set_pte_at() to set_ptes(..., 1) Ryan Roberts
2024-02-15 11:19 ` Mark Rutland
2024-02-15 18:34 ` Catalin Marinas
2024-02-15 10:31 ` [PATCH v6 09/18] arm64/mm: Convert ptep_clear() to ptep_get_and_clear() Ryan Roberts
2024-02-15 11:20 ` Mark Rutland
2024-02-15 18:35 ` Catalin Marinas
2024-02-15 10:31 ` [PATCH v6 10/18] arm64/mm: New ptep layer to manage contig bit Ryan Roberts
2024-02-15 11:23 ` Mark Rutland
2024-02-15 19:21 ` Catalin Marinas
2024-02-15 10:31 ` [PATCH v6 11/18] arm64/mm: Split __flush_tlb_range() to elide trailing DSB Ryan Roberts
2024-02-15 11:24 ` Mark Rutland
2024-02-15 19:22 ` Catalin Marinas
2024-02-15 10:31 ` [PATCH v6 12/18] arm64/mm: Wire up PTE_CONT for user mappings Ryan Roberts
2024-02-15 11:27 ` Mark Rutland
2024-02-16 12:25 ` Catalin Marinas
2024-02-16 12:53 ` Ryan Roberts
2024-02-16 16:56 ` Catalin Marinas
2024-02-16 19:54 ` John Hubbard
2024-02-20 19:50 ` Ryan Roberts
2024-02-19 15:18 ` Catalin Marinas
2024-02-20 19:58 ` Ryan Roberts
2024-02-15 10:32 ` [PATCH v6 13/18] arm64/mm: Implement new wrprotect_ptes() batch API Ryan Roberts
2024-02-15 11:28 ` Mark Rutland
2024-02-16 12:30 ` Catalin Marinas
2024-02-15 10:32 ` [PATCH v6 14/18] arm64/mm: Implement new [get_and_]clear_full_ptes() batch APIs Ryan Roberts
2024-02-15 11:28 ` Mark Rutland
2024-02-16 12:30 ` Catalin Marinas
2024-02-15 10:32 ` [PATCH v6 15/18] mm: Add pte_batch_hint() to reduce scanning in folio_pte_batch() Ryan Roberts
2024-02-15 10:32 ` [PATCH v6 16/18] arm64/mm: Implement pte_batch_hint() Ryan Roberts
2024-02-16 12:34 ` Catalin Marinas
2024-02-15 10:32 ` [PATCH v6 17/18] arm64/mm: __always_inline to improve fork() perf Ryan Roberts
2024-02-16 12:34 ` Catalin Marinas
2024-02-15 10:32 ` [PATCH v6 18/18] arm64/mm: Automatically fold contpte mappings Ryan Roberts
2024-02-15 11:30 ` Mark Rutland
2024-02-16 12:35 ` Catalin Marinas
2024-06-24 14:30 ` Kefeng Wang
2024-06-24 15:56 ` Ryan Roberts
2024-06-25 3:16 ` Kefeng Wang
2024-06-25 7:23 ` Baolin Wang
2024-06-25 11:40 ` Ryan Roberts
2024-06-25 12:37 ` Baolin Wang
2024-06-25 12:41 ` Ryan Roberts
2024-06-25 13:06 ` Matthew Wilcox
2024-06-25 13:41 ` Ryan Roberts
2024-06-25 14:06 ` Matthew Wilcox
2024-06-25 14:45 ` Ryan Roberts
2024-06-25 12:23 ` Kefeng Wang
2024-02-15 11:36 ` [PATCH v6 00/18] Transparent Contiguous PTEs for User Mappings Mark Rutland
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