9649814432
Use a completion to block until a secondary CPU has started up, like ARM do, instead of a loop of udelays. On Meta, SMP is really SMT, with each "CPU" being a different hardware thread on the same Meta processor core, so as well as being more efficient and latency friendly, using a completion prevents the bogomips of the secondary CPU from being drastically skewed every time by the execution of the tight in-cache udelay loop on the other CPU. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com> |
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| boot | ||
| configs | ||
| include | ||
| kernel | ||
| lib | ||
| mm | ||
| oprofile | ||
| tbx | ||
| Kconfig | ||
| Kconfig.debug | ||
| Kconfig.soc | ||
| Makefile | ||