From: Niklas Cassel <cassel@kernel.org>
To: "Jingoo Han" <jingoohan1@gmail.com>,
"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
"Krzysztof Wilczyński" <kw@linux.com>,
"Rob Herring" <robh@kernel.org>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Heiko Stuebner" <heiko@sntech.de>
Cc: Shawn Lin <shawn.lin@rock-chips.com>,
Damien Le Moal <dlemoal@kernel.org>,
Niklas Cassel <cassel@kernel.org>,
linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org
Subject: [PATCH v3 0/2] PCI: dw-rockchip: hide broken ATS cap in EP-mode
Date: Mon, 10 Mar 2025 10:48:26 +0100 [thread overview]
Message-ID: <20250310094826.842681-4-cassel@kernel.org> (raw)
Hello there,
Address Translation Services (ATS) is broken on rk3588 when running the
PCIe controller in Endpoint Mode.
This causes IOTLB invalidation timeout errors on the host side when using
and rk3588 in Endpoint Mode, and you are unable to run pci_endpoint_test.
Solve this by hiding the ATS capability.
With this, we do not get any IOTLB invalidation timeouts, and we can run
pci_endpoint_test successfully.
Changes since v2:
-Added missing EXPORT_SYMBOL_GPL().
Niklas Cassel (2):
PCI: dwc: ep: Add dw_pcie_ep_hide_ext_capability()
PCI: dw-rockchip: Hide broken ATS capability
.../pci/controller/dwc/pcie-designware-ep.c | 39 +++++++++++++++++++
drivers/pci/controller/dwc/pcie-designware.h | 7 ++++
drivers/pci/controller/dwc/pcie-dw-rockchip.c | 27 +++++++++++++
3 files changed, 73 insertions(+)
--
2.48.1
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next reply other threads:[~2025-03-10 9:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-10 9:48 Niklas Cassel [this message]
2025-03-10 9:48 ` [PATCH v3 2/2] PCI: dw-rockchip: Hide broken ATS capability Niklas Cassel
2025-03-11 17:39 ` [PATCH v3 0/2] PCI: dw-rockchip: hide broken ATS cap in EP-mode Krzysztof Wilczyński
2025-03-14 11:52 ` Manivannan Sadhasivam
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