nios2: flush_tlb_mm flush only the pid (e71c99fe) · Commits · 戴 / test

arch/nios2/mm/tlb.c

+14 −12

Original line number	Diff line number	Diff line
		@@ -39,18 +39,6 @@ static unsigned long pteaddr_invalid(unsigned long addr)
		return ((addr \| 0xC0000000UL) >> PAGE_SHIFT) << 2;
		}

		/*
		* All entries common to a mm share an asid. To effectively flush these
		* entries, we just bump the asid.
		*/
		void flush_tlb_mm(struct mm_struct *mm)
		{
		if (current->mm == mm)
		flush_tlb_all();
		else
		memset(&mm->context, 0, sizeof(mm_context_t));
		}

		/*
		* This one is only used for pages with the global bit set so we don't care
		* much about the ASID.
		@@ -233,6 +221,20 @@ void flush_tlb_pid(unsigned long pid)
		WRCTL(CTL_TLBMISC, org_misc);
		}

		/*
		* All entries common to a mm share an asid. To effectively flush these
		* entries, we just bump the asid.
		*/
		void flush_tlb_mm(struct mm_struct *mm)
		{
		if (current->mm == mm) {
		unsigned long mmu_pid = get_pid_from_context(&mm->context);
		flush_tlb_pid(mmu_pid);
		} else {
		memset(&mm->context, 0, sizeof(mm_context_t));
		}
		}

		void flush_tlb_all(void)
		{
		unsigned long addr = 0;