C++ (Cpp) __invalidate_icache_page Beispiele

Beispiel #1

Datei: cache.c Projekt: DirtyDroidX/android_kernel_htc_m8ul

void
update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
{
	unsigned long pfn = pte_pfn(*ptep);
	struct page *page;

	if (!pfn_valid(pfn))
		return;

	page = pfn_to_page(pfn);

	

	invalidate_itlb_mapping(addr);
	invalidate_dtlb_mapping(addr);

#if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK

	if (!PageReserved(page) && test_bit(PG_arch_1, &page->flags)) {

		unsigned long vaddr = TLBTEMP_BASE_1 + (addr & DCACHE_ALIAS_MASK);
		unsigned long paddr = (unsigned long) page_address(page);
		unsigned long phys = page_to_phys(page);

		__flush_invalidate_dcache_page(paddr);

		__flush_invalidate_dcache_page_alias(vaddr, phys);
		__invalidate_icache_page_alias(vaddr, phys);

		clear_bit(PG_arch_1, &page->flags);
	}
#else
	if (!PageReserved(page) && !test_bit(PG_arch_1, &page->flags)
	    && (vma->vm_flags & VM_EXEC) != 0) {
	    	unsigned long paddr = (unsigned long) page_address(page);
		__flush_dcache_page(paddr);
		__invalidate_icache_page(paddr);
		set_bit(PG_arch_1, &page->flags);
	}
#endif
}

Beispiel #2

Datei: cache.c Projekt: JamesChenFromChina/linux

void
update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep)
{
	unsigned long pfn = pte_pfn(*ptep);
	struct page *page;

	if (!pfn_valid(pfn))
		return;

	page = pfn_to_page(pfn);

	/* Invalidate old entry in TLBs */

	flush_tlb_page(vma, addr);

#if (DCACHE_WAY_SIZE > PAGE_SIZE)

	if (!PageReserved(page) && test_bit(PG_arch_1, &page->flags)) {
		unsigned long phys = page_to_phys(page);
		unsigned long tmp;

		tmp = TLBTEMP_BASE_1 + (phys & DCACHE_ALIAS_MASK);
		__flush_invalidate_dcache_page_alias(tmp, phys);
		tmp = TLBTEMP_BASE_1 + (addr & DCACHE_ALIAS_MASK);
		__flush_invalidate_dcache_page_alias(tmp, phys);
		__invalidate_icache_page_alias(tmp, phys);

		clear_bit(PG_arch_1, &page->flags);
	}
#else
	if (!PageReserved(page) && !test_bit(PG_arch_1, &page->flags)
	    && (vma->vm_flags & VM_EXEC) != 0) {
		unsigned long paddr = (unsigned long)kmap_atomic(page);
		__flush_dcache_page(paddr);
		__invalidate_icache_page(paddr);
		set_bit(PG_arch_1, &page->flags);
		kunmap_atomic((void *)paddr);
	}
#endif
}