* [RFC PATCH] ACPI/IORT: Let pci_fixup_final access iommu_fwnode
@ 2019-03-27 13:26 Zhangfei Gao
2019-04-02 11:20 ` zhangfei
0 siblings, 1 reply; 2+ messages in thread
From: Zhangfei Gao @ 2019-03-27 13:26 UTC (permalink / raw)
To: Jean-Philippe Brucker, Will Deacon, Hanjun Guo,
Charles Garcia-Tobin, kenneth-lee-2012, Wangzhou, guodong.xu
Cc: Zhangfei Gao, linux-arm-kernel
Using quirks to access dev->iommu_fwnode is required for those
devices appear as PCI but are actually on the AMBA bus.
dev->iommu_fwnode is allocated in iommu_fwspec_init, while it
is too late for pci_fixup_final in drivers/pci/quirks.c
So iort call pci_fixup_final after iommu_fwspec_init.
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
---
drivers/acpi/arm64/iort.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index e48894e..39d7212 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -1063,6 +1063,7 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
info.node = node;
err = pci_for_each_dma_alias(to_pci_dev(dev),
iort_pci_iommu_init, &info);
+ pci_fixup_device(pci_fixup_final, to_pci_dev(dev));
} else {
int i = 0;
--
1.9.1
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [RFC PATCH] ACPI/IORT: Let pci_fixup_final access iommu_fwnode
2019-03-27 13:26 [RFC PATCH] ACPI/IORT: Let pci_fixup_final access iommu_fwnode Zhangfei Gao
@ 2019-04-02 11:20 ` zhangfei
0 siblings, 0 replies; 2+ messages in thread
From: zhangfei @ 2019-04-02 11:20 UTC (permalink / raw)
To: Jean-Philippe Brucker, Will Deacon, Hanjun Guo,
Charles Garcia-Tobin, kenneth-lee-2012, Wangzhou, guodong.xu,
joro, Arnd Bergmann
Cc: linux-arm-kernel
On 2019/3/27 下午8:26, Zhangfei Gao wrote:
> Using quirks to access dev->iommu_fwnode is required for those
> devices appear as PCI but are actually on the AMBA bus.
> dev->iommu_fwnode is allocated in iommu_fwspec_init, while it
> is too late for pci_fixup_final in drivers/pci/quirks.c
> So iort call pci_fixup_final after iommu_fwspec_init.
>
> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
> ---
> drivers/acpi/arm64/iort.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
> index e48894e..39d7212 100644
> --- a/drivers/acpi/arm64/iort.c
> +++ b/drivers/acpi/arm64/iort.c
> @@ -1063,6 +1063,7 @@ const struct iommu_ops *iort_iommu_configure(struct device *dev)
> info.node = node;
> err = pci_for_each_dma_alias(to_pci_dev(dev),
> iort_pci_iommu_init, &info);
> + pci_fixup_device(pci_fixup_final, to_pci_dev(dev));
> } else {
> int i = 0;
>
Thanks for any suggestion.
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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