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H A D | pci-ioda.c | b174b4fb Thu Jan 31 18:42:01 CST 2019 Oliver O'Halloran <oohall@gmail.com> powerpc/powernv: Escalate reset when IODA reset fails
The IODA reset is used to flush out any OS controlled state from the PHB. This reset can fail if a PHB fatal error has occurred in early boot, probably due to a because of a bad device. We already do a fundemental reset of the device in some cases, so this patch just adds a test to force a full reset if firmware reports an error when performing the IODA reset.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> b174b4fb Thu Jan 31 18:42:01 CST 2019 Oliver O'Halloran <oohall@gmail.com> powerpc/powernv: Escalate reset when IODA reset fails The IODA reset is used to flush out any OS controlled state from the PHB. This reset can fail if a PHB fatal error has occurred in early boot, probably due to a because of a bad device. We already do a fundemental reset of the device in some cases, so this patch just adds a test to force a full reset if firmware reports an error when performing the IODA reset. Signed-off-by: Oliver O'Halloran <oohall@gmail.com> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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