On Tue, Oct 28, 2014 at 11:15 PM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: > On Tue, 28 Oct 2014, Ley Foon Tan wrote: >> On Sel, 2014-10-28 at 10:23 +0100, Arnd Bergmann wrote: >> > On Tuesday 28 October 2014 10:46:29 Ley Foon Tan wrote: >> > > On Sun, Oct 26, 2014 at 5:10 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: >> > > > On Fri, 24 Oct 2014, Ley Foon Tan wrote: >> > > >> +#ifndef _ASM_NIOS2_TIMEX_H >> > > >> +#define _ASM_NIOS2_TIMEX_H >> > > >> + >> > > >> +typedef unsigned long cycles_t; >> > > >> + >> > > >> +extern cycles_t get_cycles(void); >> > > >> + >> > > >> +#define ARCH_HAS_READ_CURRENT_TIMER >> > > > >> > > > Why does NIOS need that? Does it have a hardware implementation >> > > > dependent clock frequency which needs to be calibrated at boot time? >> > > This is suggestion from Arnd to use read_current_timer instead of using >> > > expensive delay loop calibration during boot. >> > >> > My mistake, sorry. I think the right way is to define >> > calibrate_delay_is_known() rather than read_current_timer(), I was >> > getting confused by the ARM implementation that does both. >> Hi Arnd, >> No problem, I can change that. But, seem that we don't need to have >> calibrate_delay_is_known() as well. We can just set "lpj_fine" variable, >> arm64 uses this. > > Please do so and resend the result so I can have another look and add > my reviewed tag then. Sure, I will send another revision. Thanks for reviewing. Regards Ley Foon -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
