Messages in this thread |  | | From | Arnd Bergmann <> | Subject | Re: [RFC PATCH v2 4/4] arm64: qcom: add cpu operations | Date | Fri, 10 Apr 2015 22:57:48 +0200 |
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On Friday 10 April 2015 15:43:25 Kumar Gala wrote: > +static int qcom_cpu_boot(unsigned int cpu) > +{ > + int ret = 0; > + > + if (per_cpu(cold_boot_done, cpu) == false) { > + ret = qcom_unclamp_secondary_arm_cpu(cpu); > + if (ret) > + return ret; > + per_cpu(cold_boot_done, cpu) = true; > + } > + return secondary_pen_release(cpu); > +} > +
Please add a comment here to explain why you need a two-stage process here, rather than just booting the CPU without the secondary_pen.
Are you working around a specific silicon bug here?
Arnd
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