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| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2023-08-02 16:13:36 +0100 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-24 16:20:20 -0700 |
| commit | ac4cfaccedac891d29560ddfb64cb5c1e710e1e1 (patch) | |
| tree | 03f10d6af1936ca585b86dc39ab4f1d5b1988df6 /arch/arc/include/asm/pgtable-levels.h | |
| parent | 63497b716be30fb268b2358836efb4bb9e615f15 (diff) | |
| download | lwn-ac4cfaccedac891d29560ddfb64cb5c1e710e1e1.tar.gz lwn-ac4cfaccedac891d29560ddfb64cb5c1e710e1e1.zip | |
arc: implement the new page table range API
Add PFN_PTE_SHIFT, update_mmu_cache_range(), flush_dcache_folio()
and flush_icache_pages().
Change the PG_dc_clean flag from being per-page to per-folio (which means
it cannot always be set as we don't know that all pages in this folio were
cleaned). Enhance the internal flush routines to take the number of pages
to flush.
Link: https://lkml.kernel.org/r/20230802151406.3735276-9-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Vineet Gupta <vgupta@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/arc/include/asm/pgtable-levels.h')
| -rw-r--r-- | arch/arc/include/asm/pgtable-levels.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arc/include/asm/pgtable-levels.h b/arch/arc/include/asm/pgtable-levels.h index ef68758b69f7..fc417c75c24d 100644 --- a/arch/arc/include/asm/pgtable-levels.h +++ b/arch/arc/include/asm/pgtable-levels.h @@ -169,6 +169,7 @@ #define pte_ERROR(e) \ pr_crit("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e)) +#define PFN_PTE_SHIFT PAGE_SHIFT #define pte_none(x) (!pte_val(x)) #define pte_present(x) (pte_val(x) & _PAGE_PRESENT) #define pte_clear(mm,addr,ptep) set_pte_at(mm, addr, ptep, __pte(0)) |