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arm64: mm: Drop the unused cpu parameter 

Cpu parameter is never used in flush_context, remove it.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Shaokun Zhang 2018-10-06 16:49:04 +08:00 committed by Catalin Marinas
parent c20c650d91
commit 742fafa50b
1 changed files with 4 additions and 4 deletions
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8
arch/arm64/mm/context.c
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@ -88,7 +88,7 @@ void verify_cpu_asid_bits(void)
} }
} }
static void flush_context(unsigned int cpu) static void flush_context(void)
{ {
int i; int i;
u64 asid; u64 asid;
@ -142,7 +142,7 @@ static bool check_update_reserved_asid(u64 asid, u64 newasid)
return hit; return hit;
} }
static u64 new_context(struct mm_struct *mm, unsigned int cpu) static u64 new_context(struct mm_struct *mm)
{ {
static u32 cur_idx = 1; static u32 cur_idx = 1;
u64 asid = atomic64_read(&mm->context.id); u64 asid = atomic64_read(&mm->context.id);
@ -180,7 +180,7 @@ static u64 new_context(struct mm_struct *mm, unsigned int cpu)
/* We're out of ASIDs, so increment the global generation count */ /* We're out of ASIDs, so increment the global generation count */
generation = atomic64_add_return_relaxed(ASID_FIRST_VERSION, generation = atomic64_add_return_relaxed(ASID_FIRST_VERSION,
&asid_generation); &asid_generation);
flush_context(cpu); flush_context();
/* We have more ASIDs than CPUs, so this will always succeed */ /* We have more ASIDs than CPUs, so this will always succeed */
asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, 1); asid = find_next_zero_bit(asid_map, NUM_USER_ASIDS, 1);
@ -226,7 +226,7 @@ void check_and_switch_context(struct mm_struct *mm, unsigned int cpu)
/* Check that our ASID belongs to the current generation. */ /* Check that our ASID belongs to the current generation. */
asid = atomic64_read(&mm->context.id); asid = atomic64_read(&mm->context.id);
if ((asid ^ atomic64_read(&asid_generation)) >> asid_bits) { if ((asid ^ atomic64_read(&asid_generation)) >> asid_bits) {
asid = new_context(mm, cpu); asid = new_context(mm);
atomic64_set(&mm->context.id, asid); atomic64_set(&mm->context.id, asid);
} }