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authorWill Deacon <will.deacon@arm.com>2011-05-26 11:24:25 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2011-05-26 12:14:33 +0100
commit45b95235b0ac86cef2ad4480b0618b8778847479 (patch)
treee3c4de8439787133504306362fc7dac3947b456e /arch/arm/mm/context.c
parent52af9c6cd863fe37d1103035ec7ee22ac1296458 (diff)
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>
Diffstat (limited to 'arch/arm/mm/context.c')
-rw-r--r--arch/arm/mm/context.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm/mm/context.c b/arch/arm/mm/context.c
index 0d86298c727..8bfae964b13 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);