Displaying 8 results from an estimated 8 matches for "to_cpumask".
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mm_cpumask
2019 Jul 03
2
[PATCH v2 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
..._mmu_flush_tlb_multi(cpus, info->mm, info->start, info->end);
>
> if (cpumask_empty(cpus))
> return; /* nothing to do */
> @@ -1375,9 +1375,17 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
> args = mcs.args;
> args->op.arg2.vcpumask = to_cpumask(args->mask);
>
> - /* Remove us, and any offline CPUS. */
> + /* Flush locally if needed and remove us */
> + if (cpumask_test_cpu(smp_processor_id(), to_cpumask(args->mask))) {
> + local_irq_disable();
> + flush_tlb_func_local(info);
I think this isn't the correct...
2019 Jul 03
2
[PATCH v2 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
..._mmu_flush_tlb_multi(cpus, info->mm, info->start, info->end);
>
> if (cpumask_empty(cpus))
> return; /* nothing to do */
> @@ -1375,9 +1375,17 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
> args = mcs.args;
> args->op.arg2.vcpumask = to_cpumask(args->mask);
>
> - /* Remove us, and any offline CPUS. */
> + /* Flush locally if needed and remove us */
> + if (cpumask_test_cpu(smp_processor_id(), to_cpumask(args->mask))) {
> + local_irq_disable();
> + flush_tlb_func_local(info);
I think this isn't the correct...
2019 Jul 03
1
[Xen-devel] [PATCH v2 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...o->mm, info->start, info->end);
>>> if (cpumask_empty(cpus))
>>> return; /* nothing to do */
>>> @@ -1375,9 +1375,17 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
>>> args = mcs.args;
>>> args->op.arg2.vcpumask = to_cpumask(args->mask);
>>> - /* Remove us, and any offline CPUS. */
>>> + /* Flush locally if needed and remove us */
>>> + if (cpumask_test_cpu(smp_processor_id(), to_cpumask(args->mask))) {
>>> + local_irq_disable();
>>> + flush_tlb_func_local(info);
&g...
2019 Jul 02
0
[PATCH v2 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...t;start, info->end);
+ trace_xen_mmu_flush_tlb_multi(cpus, info->mm, info->start, info->end);
if (cpumask_empty(cpus))
return; /* nothing to do */
@@ -1375,9 +1375,17 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
args = mcs.args;
args->op.arg2.vcpumask = to_cpumask(args->mask);
- /* Remove us, and any offline CPUS. */
+ /* Flush locally if needed and remove us */
+ if (cpumask_test_cpu(smp_processor_id(), to_cpumask(args->mask))) {
+ local_irq_disable();
+ flush_tlb_func_local(info);
+ local_irq_enable();
+
+ cpumask_clear_cpu(smp_processor_id(),...
2019 Jul 02
2
[PATCH v2 0/9] x86: Concurrent TLB flushes
Currently, local and remote TLB flushes are not performed concurrently,
which introduces unnecessary overhead - each INVLPG can take 100s of
cycles. This patch-set allows TLB flushes to be run concurrently: first
request the remote CPUs to initiate the flush, then run it locally, and
finally wait for the remote CPUs to finish their work.
In addition, there are various small optimizations to avoid
2019 Jul 03
0
[PATCH v2 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
..._tlb_multi(cpus, info->mm, info->start, info->end);
>> if (cpumask_empty(cpus))
>> return; /* nothing to do */
>> @@ -1375,9 +1375,17 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
>> args = mcs.args;
>> args->op.arg2.vcpumask = to_cpumask(args->mask);
>> - /* Remove us, and any offline CPUS. */
>> + /* Flush locally if needed and remove us */
>> + if (cpumask_test_cpu(smp_processor_id(), to_cpumask(args->mask))) {
>> + local_irq_disable();
>> + flush_tlb_func_local(info);
>
> I think thi...
2019 Jul 19
0
[PATCH v3 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently
...gt;start, info->end);
+ trace_xen_mmu_flush_tlb_multi(cpus, info->mm, info->start, info->end);
if (cpumask_empty(cpus))
return; /* nothing to do */
@@ -1365,9 +1365,8 @@ static void xen_flush_tlb_others(const struct cpumask *cpus,
args = mcs.args;
args->op.arg2.vcpumask = to_cpumask(args->mask);
- /* Remove us, and any offline CPUS. */
+ /* Remove any offline CPUs */
cpumask_and(to_cpumask(args->mask), cpus, cpu_online_mask);
- cpumask_clear_cpu(smp_processor_id(), to_cpumask(args->mask));
args->op.cmd = MMUEXT_TLB_FLUSH_MULTI;
if (info->end != TLB_FLU...
2019 Jul 19
5
[PATCH v3 0/9] x86: Concurrent TLB flushes
[ Cover-letter is identical to v2, including benchmark results,
excluding the change log. ]
Currently, local and remote TLB flushes are not performed concurrently,
which introduces unnecessary overhead - each INVLPG can take 100s of
cycles. This patch-set allows TLB flushes to be run concurrently: first
request the remote CPUs to initiate the flush, then run it locally, and
finally wait for