#endif /* CONFIG_PPC_BOOK3S_64 */
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
-extern void flush_dcache_page(struct page *page);
+/*
+ * This is called when a page has been modified by the kernel.
+ * It just marks the page as not i-cache clean. We do the i-cache
+ * flush later when the page is given to a user process, if necessary.
+ */
+static inline void flush_dcache_page(struct page *page)
+{
+ if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
+ return;
+ /* avoid an atomic op if possible */
+ if (test_bit(PG_dcache_clean, &page->flags))
+ clear_bit(PG_dcache_clean, &page->flags);
+}
void flush_icache_range(unsigned long start, unsigned long stop);
#define flush_icache_range flush_icache_range
}
#endif
-/*
- * This is called when a page has been modified by the kernel.
- * It just marks the page as not i-cache clean. We do the i-cache
- * flush later when the page is given to a user process, if necessary.
- */
-void flush_dcache_page(struct page *page)
-{
- if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE))
- return;
- /* avoid an atomic op if possible */
- if (test_bit(PG_dcache_clean, &page->flags))
- clear_bit(PG_dcache_clean, &page->flags);
-}
-EXPORT_SYMBOL(flush_dcache_page);
-
/**
* __flush_dcache_icache(): Flush a particular page from the data cache to RAM.
* Note: this is necessary because the instruction cache does *not*