C++ (Cpp) tlb_remove_page Examples

Example #1

File: pgtable.c Project: strongerwill/FastIO

void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
{
	ktime_t local_tstart, local_tend;
	s64 local_act_time;
	
	pgtable_page_dtor(pte);
	paravirt_release_pte(page_to_pfn(pte));
	
	//tlb_remove_page(tlb, pte);
	
	//added by zhang
 	//free_pte_page((unsigned long)__va(PFN_PHYS(page_to_pfn(pte))));	
	//free_pte_page((unsigned long)page_address(pte));
 	if(cache_on)
	{
	  if(timing_on)
	  {	
		local_tstart=ktime_get();	
		//free_pte_page(tlb, pte);
		free_pte_page(pte);
		local_tend=ktime_get();
		local_act_time=ktime_to_ns(ktime_sub(local_tend, local_tstart));
        
		spin_lock(&pte_free_cnt_lock);
		pte_free_waste += local_act_time;
        	pte_free_cnt++;
		spin_unlock(&pte_free_cnt_lock);

	  }
	  else
		//free_pte_page(tlb,pte);
		free_pte_page(pte);
	}
	else
	{
	   if(timing_on)
	   {	
		local_tstart=ktime_get();	
		tlb_remove_page(tlb, pte);
		local_tend=ktime_get();
		local_act_time=ktime_to_ns(ktime_sub(local_tend, local_tstart));
        
		spin_lock(&pte_free_cnt_lock);
		pte_free_waste += local_act_time;
        	pte_free_cnt++;
		spin_unlock(&pte_free_cnt_lock);
	   }
	   else
		tlb_remove_page(tlb, pte);
	}
}

Example #2

File: pgtable.c Project: strongerwill/FastIO

void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
{  
	ktime_t local_tstart, local_tend;
	s64 local_act_time;
	
	paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT);
	//tlb_remove_page(tlb, virt_to_page(pmd));
        // added by zhang
	if(cache_on)
	{
	  if(timing_on)
	  {
		local_tstart=ktime_get();	
		free_pmd_page((unsigned long)pmd);
		local_tend=ktime_get();
		local_act_time=ktime_to_ns(ktime_sub(local_tend, local_tstart));
        
		spin_lock(&pmd_free_cnt_lock);
		pmd_free_waste += local_act_time;
        	pmd_free_cnt++;
		spin_unlock(&pmd_free_cnt_lock);
 	  }
	  else	
		free_pmd_page((unsigned long)pmd);
	}
	else
	{
	  if(timing_on)
	  {
		local_tstart=ktime_get();	
		tlb_remove_page(tlb, virt_to_page(pmd));
		local_tend=ktime_get();
		local_act_time=ktime_to_ns(ktime_sub(local_tend, local_tstart));
        
		spin_lock(&pmd_free_cnt_lock);
		pmd_free_waste += local_act_time;
        	pmd_free_cnt++;
		spin_unlock(&pmd_free_cnt_lock);
	  }
	  else
		tlb_remove_page(tlb, virt_to_page(pmd));
	}
}

Example #3

void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
{
	struct page *page = virt_to_page(pmd);
	paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT);
	/*
	 * NOTE! For PAE, any changes to the top page-directory-pointer-table
	 * entries need a full cr3 reload to flush.
	 */
#ifdef CONFIG_X86_PAE
	tlb->need_flush_all = 1;
#endif
	pgtable_pmd_page_dtor(page);
	tlb_remove_page(tlb, page);
}

Example #4

File: memory.c Project: fgeraci/cs518-sched

static inline int zap_pte_range(mmu_gather_t *tlb, pmd_t * pmd, unsigned long address, unsigned long size)
{
	unsigned long offset;
	pte_t * ptep;
	int freed = 0;

	if (pmd_none(*pmd))
		return 0;
	if (pmd_bad(*pmd)) {
		pmd_ERROR(*pmd);
		pmd_clear(pmd);
		return 0;
	}
	ptep = pte_offset(pmd, address);
	offset = address & ~PMD_MASK;
	if (offset + size > PMD_SIZE)
		size = PMD_SIZE - offset;
	size &= PAGE_MASK;
	for (offset=0; offset < size; ptep++, offset += PAGE_SIZE) {
		pte_t pte = *ptep;
		if (pte_none(pte))
			continue;
		if (pte_present(pte)) {
			struct page *page = pte_page(pte);
			if (VALID_PAGE(page) && !PageReserved(page))
				freed ++;
			/* This will eventually call __free_pte on the pte. */
			tlb_remove_page(tlb, ptep, address + offset);
		} else {
			free_swap_and_cache(pte_to_swp_entry(pte));
			pte_clear(ptep);
		}
	}

	return freed;
}

Example #5

File: pgtable.c Project: novic/AniDroid-Hardened-Kernel

void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
{
	pgtable_page_dtor(pte);
	paravirt_release_pte(page_to_pfn(pte));
	tlb_remove_page(tlb, pte);
}