2011/1/20 Rob Herring <robherring2@xxxxxxxxx>: > On 01/20/2011 03:42 AM, Santosh Shilimkar wrote: >> >> On some architectures, secondary cores shares clock with primiary >> core and hence scale together. Hence secondary core lpj calibration >> is not necessary and can be skipped to save considerable time. >> >> This can speed up the secondary cpu boot and hotplug cpu online >> paths. >> >> Discussion thread: >> http://www.spinics.net/lists/arm-kernel/msg111124.html >> > > There's already one way to do this with pre-calculated lpj. > > Also, this isn't multi-platform friendly. It can be made to be, then - skip all Kconfig business (more elegant like this anyway): static inline int skip_secondary_calibrate(void) { return machine_is_u8500() || machine_is_svp8500v1() || machine_is_svp8500v2() || machine_is_svp5500() || machine_is_b5500() || machine_is_s5500() || machine_is_omap4_panda(); } Hm if this multi-platform stuff is desirable we probably need a runtime arch_is_omap4(), arch_is_u8500() etc so this machine list doesn't grow ridiculously long, but ftm this will work. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
