Re: [PATCH v2 09/16] PCI: dwc: Rework MSI initialization

2020-11-08 Thread Jisheng Zhang
On Thu, 5 Nov 2020 15:11:52 -0600 Rob Herring wrote: > CAUTION: Email originated externally, do not click links or open attachments > unless you recognize the sender and know the content is safe. > > > There are 3 possible MSI implementations for the DWC host. The first is > using the built-i

[PATCH v2 09/16] PCI: dwc: Rework MSI initialization

2020-11-05 Thread Rob Herring
There are 3 possible MSI implementations for the DWC host. The first is using the built-in DWC MSI controller. The 2nd is a custom MSI controller as part of the PCI host (keystone only). The 3rd is an external MSI controller (typically GICv3 ITS). Currently, the last 2 are distinguished with a .msi