Re: [PATCH v3] arm: perf: Directly handle SMP platforms with one SPI

On 08/01/15 17:30, Will Deacon wrote: > Hi Daniel, > > Some minor comments below... > > On Wed, Jan 07, 2015 at 12:28:18PM +, Daniel Thompson wrote: >> Some ARM platforms mux the PMU interrupt of every core into a single >> SPI. On such platforms if the PMU of any core except 0 raises an inte

Re: [PATCH v3] arm: perf: Directly handle SMP platforms with one SPI

Hi Daniel, Some minor comments below... On Wed, Jan 07, 2015 at 12:28:18PM +, Daniel Thompson wrote: > Some ARM platforms mux the PMU interrupt of every core into a single > SPI. On such platforms if the PMU of any core except 0 raises an interrupt > then it cannot be serviced and eventually,

[PATCH v3] arm: perf: Directly handle SMP platforms with one SPI

Some ARM platforms mux the PMU interrupt of every core into a single SPI. On such platforms if the PMU of any core except 0 raises an interrupt then it cannot be serviced and eventually, if you are lucky, the spurious irq detection might forcefully disable the interrupt. On these SoCs it is not po