arm64: mm: Refactor flush_tlb_page() to use __tlbi_level_asid()

Now that we have __tlbi_level_asid(), let's refactor the
*flush_tlb_page*() variants to use it rather than open coding.

The emitted tlbi(s) is/are intended to be exactly the same as before; no
TTL hint is provided. Although the spec for flush_tlb_page() allows for
setting the TTL hint to 3, it turns out that
flush_tlb_fix_spurious_fault_pmd() depends on
local_flush_tlb_page_nonotify() to invalidate the level 2 entry. This
will be fixed separately.

Reviewed-by: Linu Cherian <linu.cherian@arm.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Author: ryanhrob

arch/arm64/include/asm/tlbflush.h

@@ -346,12 +346,8 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 static inline void __local_flush_tlb_page_nonotify_nosync(struct mm_struct *mm,
 							  unsigned long uaddr)
 {
-	unsigned long addr;
-
 	dsb(nshst);
-	addr = __TLBI_VADDR(uaddr, ASID(mm));
-	__tlbi(vale1, addr);
-	__tlbi_user(vale1, addr);
+	__tlbi_level_asid(vale1, uaddr, TLBI_TTL_UNKNOWN, ASID(mm));
 }
 
 static inline void local_flush_tlb_page_nonotify(struct vm_area_struct *vma,
@@ -373,12 +369,8 @@ static inline void local_flush_tlb_page(struct vm_area_struct *vma,
 static inline void __flush_tlb_page_nosync(struct mm_struct *mm,
 					   unsigned long uaddr)
 {
-	unsigned long addr;
-
 	dsb(ishst);
-	addr = __TLBI_VADDR(uaddr, ASID(mm));
-	__tlbi(vale1is, addr);
-	__tlbi_user(vale1is, addr);
+	__tlbi_level_asid(vale1is, uaddr, TLBI_TTL_UNKNOWN, ASID(mm));
 	mmu_notifier_arch_invalidate_secondary_tlbs(mm, uaddr & PAGE_MASK,
 						(uaddr & PAGE_MASK) + PAGE_SIZE);
 }