[Skiboot] [PATCH] Revert "FSP: Disable PSI link whenever FSP tells OPAL about impending R/R"

Oliver O'Halloran oohall at gmail.com
Wed Apr 1 15:33:27 AEDT 2020

On Thu, Mar 12, 2020 at 11:44 PM Vasant Hegde
<hegdevasant at linux.vnet.ibm.com> wrote:
> This reverts commit a4788a49f004a91bb8ca015336abf9ae119fbc52.
> Above patch was added to handle host power down with FSP in R/R state.
> But FSP is not liking OPAL giving up PSI link early in R/R process. For
> FSP initiated R/R OPAL should wait until we get PSI interrupt. Hence
> reverting above commit.
> Also partially reverting commit e04a34af to make fsp_dpo_pending as
> global variable.
> We have made several improvement in the way we handle FSP communication
> and also in power down path. Now if host sends powerdown message when
> FSP in RR, OPAL return OPAL_BUSY_EVENT. Kernel will run poller() and
> retry power down message after sometime. So I think this patch will not
> have any side effect on power down path.
> Cc: Ananth N Mavinakayanahalli <ananth at linux.vnet.ibm.com>
> Signed-off-by: Vasant Hegde <hegdevasant at linux.vnet.ibm.com>
> ---

Thanks, Merged as of 3a4daeca7643

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