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 v3 10/34] hexagon: Implement the new page table range API
Date: Tue, 28 Feb 2023 21:37:13 +0000 [thread overview]
Message-ID: <20230228213738.272178-11-willy@infradead.org> (raw)
In-Reply-To: <20230228213738.272178-1-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:[~2023-02-28 21:37 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-28 21:37 [PATCH v3 00/34] New " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 01/34] mm: Convert page_table_check_pte_set() to page_table_check_ptes_set() Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 02/34] mm: Add generic flush_icache_pages() and documentation Matthew Wilcox (Oracle)
2023-03-15 9:27 ` Mike Rapoport
2023-02-28 21:37 ` [PATCH v3 03/34] mm: Add folio_flush_mapping() Matthew Wilcox (Oracle)
2023-03-03 10:33 ` Mike Rapoport
2023-02-28 21:37 ` [PATCH v3 04/34] mm: Remove ARCH_IMPLEMENTS_FLUSH_DCACHE_FOLIO Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 05/34] alpha: Implement the new page table range API Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 06/34] arc: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 07/34] arm: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 08/34] arm64: " Matthew Wilcox (Oracle)
2023-03-09 11:03 ` Ryan Roberts
2023-02-28 21:37 ` [PATCH v3 09/34] csky: " Matthew Wilcox (Oracle)
2023-03-03 11:40 ` Mike Rapoport
2023-02-28 21:37 ` Matthew Wilcox (Oracle) [this message]
2023-02-28 21:37 ` [PATCH v3 11/34] ia64: " Matthew Wilcox (Oracle)
2023-03-03 11:56 ` Mike Rapoport
2023-03-03 14:36 ` Matthew Wilcox
2023-02-28 21:37 ` [PATCH v3 12/34] loongarch: " Matthew Wilcox (Oracle)
2023-03-01 2:04 ` WANG Xuerui
2023-02-28 21:37 ` [PATCH v3 13/34] m68k: " Matthew Wilcox (Oracle)
2023-03-05 10:16 ` Geert Uytterhoeven
2023-03-05 15:28 ` Matthew Wilcox
2023-03-05 16:48 ` Geert Uytterhoeven
2023-03-05 20:44 ` Michael Schmitz
2023-03-06 7:21 ` Geert Uytterhoeven
2023-03-06 23:01 ` Michael Schmitz
2023-02-28 21:37 ` [PATCH v3 14/34] microblaze: " Matthew Wilcox (Oracle)
2023-03-03 10:53 ` Mike Rapoport
2023-03-03 14:38 ` Matthew Wilcox
2023-02-28 21:37 ` [PATCH v3 15/34] mips: " Matthew Wilcox (Oracle)
2023-03-03 12:24 ` Mike Rapoport
2023-02-28 21:37 ` [PATCH v3 16/34] nios2: " Matthew Wilcox (Oracle)
2023-03-03 12:49 ` Mike Rapoport
2023-02-28 21:37 ` [PATCH v3 17/34] openrisc: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 18/34] parisc: " Matthew Wilcox (Oracle)
2023-03-02 16:43 ` John David Anglin
2023-03-02 20:40 ` John David Anglin
2023-03-04 16:27 ` John David Anglin
2023-02-28 21:37 ` [PATCH v3 19/34] powerpc: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 20/34] riscv: " Matthew Wilcox (Oracle)
2023-03-15 5:23 ` Palmer Dabbelt
2023-02-28 21:37 ` [PATCH v3 21/34] s390: " Matthew Wilcox (Oracle)
2023-03-02 13:31 ` Gerald Schaefer
2023-02-28 21:37 ` [PATCH v3 22/34] superh: " Matthew Wilcox (Oracle)
2023-03-01 8:06 ` Geert Uytterhoeven
2023-03-01 16:17 ` Matthew Wilcox
2023-02-28 21:37 ` [PATCH v3 23/34] sparc32: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 24/34] sparc64: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 25/34] um: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 26/34] x86: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 27/34] xtensa: " Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 28/34] mm: Remove page_mapping_file() Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 29/34] mm: Rationalise flush_icache_pages() and flush_icache_page() Matthew Wilcox (Oracle)
2023-03-05 9:53 ` Geert Uytterhoeven
2023-02-28 21:37 ` [PATCH v3 30/34] mm: Use flush_icache_pages() in do_set_pmd() Matthew Wilcox (Oracle)
2023-03-03 14:02 ` Mike Rapoport
2023-03-03 16:02 ` Matthew Wilcox
2023-02-28 21:37 ` [PATCH v3 31/34] filemap: Add filemap_map_folio_range() Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 32/34] rmap: add folio_add_file_rmap_range() Matthew Wilcox (Oracle)
2023-03-01 3:04 ` Yin, Fengwei
2023-02-28 21:37 ` [PATCH v3 33/34] mm: Convert do_set_pte() to set_pte_range() Matthew Wilcox (Oracle)
2023-02-28 21:37 ` [PATCH v3 34/34] filemap: Batch PTE mappings Matthew Wilcox (Oracle)
2023-03-03 14:19 ` [PATCH v3 00/34] New page table range API Mike Rapoport
2023-03-05 10:15 ` Geert Uytterhoeven
2023-03-09 11:09 ` Ryan Roberts
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230228213738.272178-11-willy@infradead.org \
--to=willy@infradead.org \
--cc=bcain@quicinc.com \
--cc=linux-arch@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox