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PCI/P2PDMA: Add Google SoCs to the P2P DMA host bridge list

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All Google SoCs support peer-to-peer DMA between Root Ports, so add a
wildcard rule to the host bridge list.

Signed-off-by: Jacob Moroni <jmoroni@google.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: David Hu <xuehaohu@google.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>
Link: https://patch.msgid.link/20260409150123.3538444-2-jmoroni@google.com
This commit is contained in:
Jacob Moroni
2026-04-09 15:01:23 +00:00
committed by Bjorn Helgaas
parent 1a1f96e3e2
commit 70cf146a67
2 changed files with 4 additions and 0 deletions
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2
drivers/pci/p2pdma.c
View File

@@ -548,6 +548,8 @@ static const struct pci_p2pdma_whitelist_entry {
{PCI_VENDOR_ID_INTEL, 0x2033, 0},
{PCI_VENDOR_ID_INTEL, 0x2020, 0},
{PCI_VENDOR_ID_INTEL, 0x09a2, 0},
/* Google SoCs. */
{PCI_VENDOR_ID_GOOGLE, PCI_ANY_ID, 0},
{}
};

2
include/linux/pci_ids.h
View File

@@ -2586,6 +2586,8 @@
#define PCI_VENDOR_ID_AZWAVE 0x1a3b
#define PCI_VENDOR_ID_GOOGLE 0x1ae0
#define PCI_VENDOR_ID_REDHAT_QUMRANET 0x1af4
#define PCI_SUBVENDOR_ID_REDHAT_QUMRANET 0x1af4
#define PCI_SUBDEVICE_ID_QEMU 0x1100