Differential D31030

pci_dw: Detect number of outbound regions automatically
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Authored by jrtc27 on Jul 5 2021, 12:10 AM.

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mmel
mw
wma

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rG0889033d2820: pci_dw: Detect number of outbound regions automatically
rG4707bb0430e6: pci_dw: Detect number of outbound regions automatically

Summary

Currently we use the num-viewports property to decide how many outbound
regions there are we can use, defaulting to 2. However, Linux has
stopped using that and so it no longer appears in new device trees, such
as for the SiFive FU740. Instead, it's possible to just probe the
hardware directly.

Diff Detail

Repository

rS FreeBSD src repository - subversion

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Build Status

Buildable 40277
Build 37166: arc lint + arc unit

Event Timeline

jrtc27 created this revision.Jul 5 2021, 12:10 AM

Herald added a subscriber: imp. · View Herald TranscriptJul 5 2021, 12:10 AM

jrtc27 requested review of this revision.Jul 5 2021, 12:10 AM

Harbormaster completed remote builds in B40277: Diff 91738.Jul 5 2021, 12:10 AM

jrtc27 added parent revisions: D31028: pci_dw: Support multiple memory windows, D31029: pci_dw: Support modern "unroll" iATU mode.Jul 5 2021, 12:25 AM

jrtc27 added a child revision: D31033: fu740_pci_dw: Add SiFive FU740 PCIe controller driver.

I need day or two to test this on my boards, but it looks OK for me.

Tested on MACCHIATObin and HoneyComb LX2.

This revision is now accepted and ready to land.Jul 10 2021, 11:46 AM

Closed by commit rG4707bb0430e6: pci_dw: Detect number of outbound regions automatically (authored by jrtc27). · Explain WhyJul 21 2021, 4:52 AM

This revision was automatically updated to reflect the committed changes.

jrtc27 added a commit: rG4707bb0430e6: pci_dw: Detect number of outbound regions automatically.

jrtc27 added a commit: rG0889033d2820: pci_dw: Detect number of outbound regions automatically.Sep 7 2021, 12:10 PM

Revision Contents
Changeset List

Path

Size

sys/

dev/

pci/

2 lines

86 lines

Diff 91738

sys/dev/pci/pci_dw.h

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sys/dev/pci/pci_dw.c

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