Commit 45b95235 authored by Will Deacon's avatar Will Deacon Committed by Russell King

ARM: 6944/1: mm: allow ASID 0 to be allocated to tasks

Now that ASID 0 is no longer used as a reserved value, allow it to be
allocated to tasks.
Acked-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 52af9c6c
......@@ -94,7 +94,7 @@ static void reset_context(void *info)
return;
smp_rmb();
asid = cpu_last_asid + cpu + 1;
asid = cpu_last_asid + cpu;
flush_context();
set_mm_context(mm, asid);
......@@ -144,13 +144,13 @@ void __new_context(struct mm_struct *mm)
* to start a new version and flush the TLB.
*/
if (unlikely((asid & ~ASID_MASK) == 0)) {
asid = cpu_last_asid + smp_processor_id() + 1;
asid = cpu_last_asid + smp_processor_id();
flush_context();
#ifdef CONFIG_SMP
smp_wmb();
smp_call_function(reset_context, NULL, 1);
#endif
cpu_last_asid += NR_CPUS;
cpu_last_asid += NR_CPUS - 1;
}
set_mm_context(mm, asid);
......
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