[lkml]   [2020]   [May]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 1/2] PCI: Introduce PCI_FIXUP_IOMMU
Hi, Christoph

On 2020/5/26 下午10:46, Christoph Hellwig wrote:
> On Tue, May 26, 2020 at 07:49:08PM +0800, Zhangfei Gao wrote:
>> Some platform devices appear as PCI but are actually on the AMBA bus,
>> and they need fixup in drivers/pci/quirks.c handling iommu_fwnode.
>> Here introducing PCI_FIXUP_IOMMU, which is called after iommu_fwnode
>> is allocated, instead of reusing PCI_FIXUP_FINAL since it will slow
>> down iommu probing as all devices in fixup final list will be
>> reprocessed.
> Who is going to use this? I don't see a single user in the series.
We will add iommu fixup in drivers/pci/quirks.c, handling

fwspec->can_stall, which is introduced in

Unfortunately, the patch does not catch v5.8, so we have to wait.
And we want to check whether this is a right method to solve this issue.


 \ /
  Last update: 2020-05-26 17:11    [W:0.082 / U:9.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site