From: Alex Deucher <alexdeucher@gmail.com>
To: amd-gfx@lists.freedesktop.org, linux-pci@vger.kernel.org
Cc: "Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>
Subject: [PATCH] PCI/P2PDMA: Add additional AMD ZEN root ports to the whitelist
Date: Mon, 6 Apr 2020 15:42:01 -0400 [thread overview]
Message-ID: <20200406194201.846411-1-alexander.deucher@amd.com> (raw)
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@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
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
next reply other threads:[~2020-04-06 19:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-06 19:42 Alex Deucher [this message]
2020-04-07 2:55 ` [PATCH] PCI/P2PDMA: Add additional AMD ZEN root ports to the whitelist Huang Rui
2020-04-23 19:48 ` Alex Deucher
2020-04-23 19:55 ` Bjorn Helgaas
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