Re: [PATCH 0/3] dwc2: Speed up the interrupt handler quite a bit

2015-11-05 Thread Heiko Stuebner
Am Mittwoch, 4. November 2015, 14:53:02 schrieb Douglas Anderson: > The dwc2 interrupt handler is quite slow. On rk3288 with a few things > plugged into the ports and with cpufreq locked at 696MHz (to simulate > real world idle system), I can easily observe dwc2_handle_hcd_intr() > taking > 120

Re: [PATCH 0/3] dwc2: Speed up the interrupt handler quite a bit

2015-11-05 Thread Heiko Stuebner
Am Mittwoch, 4. November 2015, 14:53:02 schrieb Douglas Anderson: > The dwc2 interrupt handler is quite slow. On rk3288 with a few things > plugged into the ports and with cpufreq locked at 696MHz (to simulate > real world idle system), I can easily observe dwc2_handle_hcd_intr() > taking > 120

[PATCH 0/3] dwc2: Speed up the interrupt handler quite a bit

2015-11-04 Thread Douglas Anderson
The dwc2 interrupt handler is quite slow. On rk3288 with a few things plugged into the ports and with cpufreq locked at 696MHz (to simulate real world idle system), I can easily observe dwc2_handle_hcd_intr() taking > 120 us, sometimes > 150 us. Note that SOF interrupts come every 125 us with

[PATCH 0/3] dwc2: Speed up the interrupt handler quite a bit

2015-11-04 Thread Douglas Anderson
The dwc2 interrupt handler is quite slow. On rk3288 with a few things plugged into the ports and with cpufreq locked at 696MHz (to simulate real world idle system), I can easily observe dwc2_handle_hcd_intr() taking > 120 us, sometimes > 150 us. Note that SOF interrupts come every 125 us with