According to the hw architect, pre-ZEN parts support p2p writes and ZEN parts support both p2p reads and writes. Add entries for Zen parts Raven (0x15d0) and Renoir (0x1630). Cc: Christian König <christian.koenig@xxxxxxx> Acked-by: Christian König <christian.koenig@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> --- drivers/pci/p2pdma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c index 9a8a38384121..91a4c987399d 100644 --- a/drivers/pci/p2pdma.c +++ b/drivers/pci/p2pdma.c @@ -282,6 +282,8 @@ static const struct pci_p2pdma_whitelist_entry { } pci_p2pdma_whitelist[] = { /* AMD ZEN */ {PCI_VENDOR_ID_AMD, 0x1450, 0}, + {PCI_VENDOR_ID_AMD, 0x15d0, 0}, + {PCI_VENDOR_ID_AMD, 0x1630, 0}, /* Intel Xeon E5/Core i7 */ {PCI_VENDOR_ID_INTEL, 0x3c00, REQ_SAME_HOST_BRIDGE}, -- 2.25.1