openrisc: implement the new page table range API

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Add PFN_PTE_SHIFT, update_mmu_cache_range() and flush_dcache_folio(). 
Change the PG_arch_1 (aka PG_dcache_dirty) flag from being per-page to
per-folio.

Link: https://lkml.kernel.org/r/20230802151406.3735276-20-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Cc: Stafford Horne <shorne@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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This commit is contained in:

Matthew Wilcox (Oracle) 2023-08-02 16:13:47 +01:00 • committed by Andrew Morton

parent 9942094109

commit 063e409dcc

3 changed files with 25 additions and 10 deletions

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8

arch/openrisc/include/asm/cacheflush.h

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arch/openrisc/include/asm/pgtable.h

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arch/openrisc/mm/cache.c

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