diff options
| author | Will Deacon <will.deacon@arm.com> | 2011-05-26 11:24:25 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-05-26 12:14:33 +0100 |
| commit | 45b95235b0ac86cef2ad4480b0618b8778847479 (patch) | |
| tree | e3c4de8439787133504306362fc7dac3947b456e | |
| parent | 52af9c6cd863fe37d1103035ec7ee22ac1296458 (diff) | |
| download | linux-45b95235b0ac86cef2ad4480b0618b8778847479.tar.gz linux-45b95235b0ac86cef2ad4480b0618b8778847479.tar.bz2 linux-45b95235b0ac86cef2ad4480b0618b8778847479.zip | |
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: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/mm/context.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c index 0d86298c7279..8bfae964b133 100644 --- a/arch/arm/mm/context.c +++ b/arch/arm/mm/context.c @@ -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); |