On Fri, Mar 16, 2018 at 11:25 PM, Sinan Kaya <okaya@xxxxxxxxxxxxxx> wrote:
> @@ -477,15 +477,16 @@ static inline void t4_ring_sq_db(struct t4_wq *wq, u16 inc, union t4_wr *wqe)
> (u64 *)wqe);
> } else {
> pr_debug("DB wq->sq.pidx = %d\n", wq->sq.pidx);
> - writel(PIDX_T5_V(inc) | QID_V(wq->sq.bar2_qid),
> - wq->sq.bar2_va + SGE_UDB_KDOORBELL);
> + __raw_writel(PIDX_T5_V(inc) | QID_V(wq->sq.bar2_qid),
I think Jason might be right that drivers shouldn't be calling the
__raw_write functions. You definitely need to run this by the PPC
developers, specifically Ben Herrenschmidt.
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