From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
To: linux-mm@kvack.org, linux-arch@vger.kernel.org
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>,
linux-kernel@vger.kernel.org, Brian Cain <bcain@quicinc.com>
Subject: [PATCH v2 09/30] hexagon: Implement the new page table range API
Date: Mon, 27 Feb 2023 17:57:20 +0000 [thread overview]
Message-ID: <20230227175741.71216-10-willy@infradead.org> (raw)
In-Reply-To: <20230227175741.71216-1-willy@infradead.org>
Add set_ptes() and update_mmu_cache_range().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Brian Cain <bcain@quicinc.com>
---
arch/hexagon/include/asm/cacheflush.h | 7 +++++--
arch/hexagon/include/asm/pgtable.h | 16 ++++++++++++++--
2 files changed, 19 insertions(+), 4 deletions(-)
diff --git a/arch/hexagon/include/asm/cacheflush.h b/arch/hexagon/include/asm/cacheflush.h
index 6eff0730e6ef..63ca314ede89 100644
--- a/arch/hexagon/include/asm/cacheflush.h
+++ b/arch/hexagon/include/asm/cacheflush.h
@@ -58,12 +58,15 @@ extern void flush_cache_all_hexagon(void);
* clean the cache when the PTE is set.
*
*/
-static inline void update_mmu_cache(struct vm_area_struct *vma,
- unsigned long address, pte_t *ptep)
+static inline void update_mmu_cache_range(struct vm_area_struct *vma,
+ unsigned long address, pte_t *ptep, unsigned int nr)
{
/* generic_ptrace_pokedata doesn't wind up here, does it? */
}
+#define update_mmu_cache(vma, addr, ptep) \
+ update_mmu_cache_range(vma, addr, ptep, 1)
+
void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long vaddr, void *dst, void *src, int len);
#define copy_to_user_page copy_to_user_page
diff --git a/arch/hexagon/include/asm/pgtable.h b/arch/hexagon/include/asm/pgtable.h
index 59393613d086..f58f1d920769 100644
--- a/arch/hexagon/include/asm/pgtable.h
+++ b/arch/hexagon/include/asm/pgtable.h
@@ -346,12 +346,24 @@ static inline int pte_exec(pte_t pte)
#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
/*
- * set_pte_at - update page table and do whatever magic may be
+ * set_ptes - update page table and do whatever magic may be
* necessary to make the underlying hardware/firmware take note.
*
* VM may require a virtual instruction to alert the MMU.
*/
-#define set_pte_at(mm, addr, ptep, pte) set_pte(ptep, pte)
+static inline void set_ptes(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte, unsigned int nr)
+{
+ for (;;) {
+ set_pte(ptep, pte);
+ if (--nr == 0)
+ break;
+ ptep++;
+ pte_val(pte) += PAGE_SIZE;
+ }
+}
+
+#define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1)
static inline unsigned long pmd_page_vaddr(pmd_t pmd)
{
--
2.39.1
next prev parent reply other threads:[~2023-02-27 17:58 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-27 17:57 [PATCH v2 00/30] New " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 01/30] mm: Convert page_table_check_pte_set() to page_table_check_ptes_set() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 02/30] mm: Add generic flush_icache_pages() and documentation Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 03/30] mm: Add folio_flush_mapping() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 04/30] mm: Remove ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 05/30] alpha: Implement the new page table range API Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 06/30] arc: " Matthew Wilcox (Oracle)
2023-02-28 6:34 ` Vineet Gupta
2023-02-28 16:25 ` Matthew Wilcox
2023-02-27 17:57 ` [PATCH v2 07/30] arm64: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 08/30] csky: " Matthew Wilcox (Oracle)
2023-02-28 3:17 ` Guo Ren
2023-02-27 17:57 ` Matthew Wilcox (Oracle) [this message]
2023-02-27 17:57 ` [PATCH v2 10/30] ia64: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 11/30] loongarch: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 12/30] m68k: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 13/30] microblaze: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 14/30] mips: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 15/30] nios2: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 16/30] openrisc: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 17/30] parisc: " Matthew Wilcox (Oracle)
2023-02-27 22:49 ` John David Anglin
2023-02-27 23:50 ` Matthew Wilcox
2023-02-27 17:57 ` [PATCH v2 18/30] powerpc: " Matthew Wilcox (Oracle)
2023-02-27 19:45 ` Christophe Leroy
2023-02-27 20:20 ` Matthew Wilcox
2023-02-28 6:58 ` Christophe Leroy
2023-02-27 17:57 ` [PATCH v2 19/30] riscv: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 20/30] s390: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 21/30] superh: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 22/30] sparc32: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 23/30] sparc64: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 24/30] um: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 25/30] x86: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 26/30] xtensa: " Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 27/30] filemap: Add filemap_map_folio_range() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 28/30] rmap: add folio_add_file_rmap_range() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 29/30] mm: Convert do_set_pte() to set_pte_range() Matthew Wilcox (Oracle)
2023-02-27 17:57 ` [PATCH v2 30/30] filemap: Batch PTE mappings Matthew Wilcox (Oracle)
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