On Thursday 25 August 2016 12:38 PM, Nicholas Piggin wrote:
On Thu, 25 Aug 2016 12:00:02 +0530
Madhavan Srinivasan <ma...@linux.vnet.ibm.com> wrote:
Code to replay the Performance Monitoring Interrupts(PMI).
In the masked_interrupt handler, for PMIs we reset the MSR[EE]
and return. In the __check_irq_replay(), replay the PMI interrupt
by calling performance_monitor_common handler.
Patch also adds a new soft_irq_set_mask() to update paca->soft_enabled.
New Kconfig is added "CONFIG_IRQ_DEBUG_SUPPORT" to add a warn_on
to alert the usage of soft_irq_set_mask() for disabling lower
bitmask interrupts.
Have also moved the code under the CONFIG_TRACE_IRQFLAGS in
arch_local_irq_restore() to new Kconfig as suggested.
Should you make a single patch out of this and patch 10?
It doesn't make sense to mask perf interrupts if we can't
replay them.
Perhaps split the CONFIG_IRQ_DEBUG_SUPPORT change into its
own patch first and have the PMU masking and replaying as
a single patch?
Make senses. Will make the changes.
Maddy
Just a suggestion.
