On Mon, 2007-10-22 at 17:23 -0700, David Miller wrote: > From: [EMAIL PROTECTED] (Linas Vepstas) > Date: Mon, 22 Oct 2007 14:54:52 -0500 > > > As discussed in the other thread, I'll try to set up a patch > > for an arch callback for restoring msi state.
>From what it looks like at this stage, pSeries might need to differenciate restoring MSI state after a device reset (PCI error recovery) from restoring MSI state after suspend/resume (if we ever implement that one). The former apparently require manual saving & restoring of the config space bits. (Linas, do you have a pointer to the bit of PAPR spec that specifies that we need to save & restore the MSI message ourselves ?) For the later (suspend/resume), that will definitely not work, or at least, will not be enough, especially with something like suspend to disk, where we'll need to have the firmware reconfigure the MSIs for us (to make sure, among others, that the interrupt controllers are properly configured for MSIs etc...). Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
