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arm64: tlbflush: remove redundant ASID casts to (unsigned long)

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The ASID macro returns a 64-bit (long long) value, so there is no need
to cast to (unsigned long) before shifting prior to a TLBI operation.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Will Deacon 2015-10-06 18:46:25 +01:00 committed by Catalin Marinas
parent 5aec715d7d
commit f3e002c24e
1 changed files with 4 additions and 5 deletions
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9
arch/arm64/include/asm/tlbflush.h
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@ -81,7 +81,7 @@ static inline void flush_tlb_all(void)
static inline void flush_tlb_mm(struct mm_struct *mm) static inline void flush_tlb_mm(struct mm_struct *mm)
{ {
unsigned long asid = (unsigned long)ASID(mm) << 48; unsigned long asid = ASID(mm) << 48;
dsb(ishst); dsb(ishst);
asm("tlbi aside1is, %0" : : "r" (asid)); asm("tlbi aside1is, %0" : : "r" (asid));
@ -91,8 +91,7 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
static inline void flush_tlb_page(struct vm_area_struct *vma, static inline void flush_tlb_page(struct vm_area_struct *vma,
unsigned long uaddr) unsigned long uaddr)
{ {
unsigned long addr = uaddr >> 12 | unsigned long addr = uaddr >> 12 | (ASID(vma->vm_mm) << 48);
((unsigned long)ASID(vma->vm_mm) << 48);
dsb(ishst); dsb(ishst);
asm("tlbi vale1is, %0" : : "r" (addr)); asm("tlbi vale1is, %0" : : "r" (addr));
@ -109,7 +108,7 @@ static inline void __flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end, unsigned long start, unsigned long end,
bool last_level) bool last_level)
{ {
unsigned long asid = (unsigned long)ASID(vma->vm_mm) << 48; unsigned long asid = ASID(vma->vm_mm) << 48;
unsigned long addr; unsigned long addr;
if ((end - start) > MAX_TLB_RANGE) { if ((end - start) > MAX_TLB_RANGE) {
@ -162,7 +161,7 @@ static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end
static inline void __flush_tlb_pgtable(struct mm_struct *mm, static inline void __flush_tlb_pgtable(struct mm_struct *mm,
unsigned long uaddr) unsigned long uaddr)
{ {
unsigned long addr = uaddr >> 12 | ((unsigned long)ASID(mm) << 48); unsigned long addr = uaddr >> 12 | (ASID(mm) << 48);
dsb(ishst); dsb(ishst);
asm("tlbi vae1is, %0" : : "r" (addr)); asm("tlbi vae1is, %0" : : "r" (addr));