]> git.baikalelectronics.ru Git - kernel.git/commit
PCI: Add ACS quirk for Amazon Annapurna Labs root ports
authorAli Saidi <alisaidi@amazon.com>
Thu, 12 Sep 2019 13:00:40 +0000 (16:00 +0300)
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Mon, 16 Sep 2019 13:10:04 +0000 (14:10 +0100)
commit7a5e90e4d1e72c9e1e2eb53d9bc91e8ed7fa3bf6
treeaaa717e752e5e8073187a95f17ce1ac24b418a21
parent913bacf9c1560dc375365a9db6eef7c57ca21f28
PCI: Add ACS quirk for Amazon Annapurna Labs root ports

The Amazon's Annapurna Labs root ports don't advertise an ACS
capability, but they don't allow peer-to-peer transactions and do
validate bus numbers through the SMMU. Additionally, it's not possible
for one RP to pass traffic to another RP.

Signed-off-by: Ali Saidi <alisaidi@amazon.com>
Signed-off-by: Jonathan Chocron <jonnyc@amazon.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Reviewed-by: Andrew Murray <andrew.murray@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
drivers/pci/quirks.c