On Fri, Aug 07, 2020 at 07:39:19PM +0530, Srujana Challa wrote:
>
> +/*
> + * On OcteonTX2 platform the parameter insts_num is used as a count of
> + * instructions to be enqueued. The valid values for insts_num are:
> + * 1 - 1 CPT instruction will be enqueued during LMTST operation
> + * 2 - 2 CPT instructions will be enqueued during LMTST operation
> + */
> +static inline void otx2_cpt_send_cmd(union otx2_cpt_inst_s *cptinst,
> + u32 insts_num, void *obj)
> +{
> + struct otx2_cptlf_info *lf = obj;
> + void *lmtline = lf->lmtline;
> + long ret;
> +
> + /*
> + * Make sure memory areas pointed in CPT_INST_S
> + * are flushed before the instruction is sent to CPT
> + */
> + smp_wmb();
Why should this be a NOOP on UP?
Cheers,
--
Email: Herbert Xu <[email protected]>
Home Page: http://gondor.apana.org.au/~herbert/
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