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https://gitee.com/bianbu-linux/linux-6.6
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876397837d
Add PFN_PTE_SHIFT, update_mmu_cache_range() and flush_dcache_folio(). Change the PG_arch_1 (aka PG_dcache_clean) flag from being per-page to per-folio, which makes arch_dma_mark_clean() and mark_clean() a little more exciting. [willy@infradead.org: fix folio_size() handling] Link: https://lkml.kernel.org/r/ZNPlOCe8F+nrzPxr@casper.infradead.org Link: https://lkml.kernel.org/r/20230802151406.3735276-14-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
39 lines
1 KiB
C
39 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_IA64_CACHEFLUSH_H
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#define _ASM_IA64_CACHEFLUSH_H
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/*
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* Copyright (C) 2002 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#include <linux/page-flags.h>
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#include <linux/bitops.h>
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#include <asm/page.h>
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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
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static inline void flush_dcache_folio(struct folio *folio)
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{
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clear_bit(PG_arch_1, &folio->flags);
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}
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#define flush_dcache_folio flush_dcache_folio
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static inline void flush_dcache_page(struct page *page)
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{
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flush_dcache_folio(page_folio(page));
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}
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extern void flush_icache_range(unsigned long start, unsigned long end);
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#define flush_icache_range flush_icache_range
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extern void clflush_cache_range(void *addr, int size);
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#define flush_icache_user_page(vma, page, user_addr, len) \
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do { \
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unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK); \
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flush_icache_range(_addr, _addr + (len)); \
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} while (0)
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#include <asm-generic/cacheflush.h>
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#endif /* _ASM_IA64_CACHEFLUSH_H */
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