diff options
| author | Andrew Turner <andrew@FreeBSD.org> | 2026-09-18 11:29:19 +0000 |
|---|---|---|
| committer | Andrew Turner <andrew@FreeBSD.org> | 2026-09-18 11:29:19 +0000 |
| commit | 50e01b6351b1a4955814cce021852c65a5b5bb9f (patch) | |
| tree | 6d873f94f2732679f162a7217907387d5f5c8ced /sys/dev/dwc | |
| parent | 0689a5ea451bdef62f7e81ffb3e5f580c5c99b2b (diff) | |
Only use the MSI polling method when we support MSIs and the SMMU is
cache-coherent.
The SMMU writes to a memory location. If it is not cache-coherent then
the CPU may read the existing value in its cache and miss the signal
the sync operation has completed.
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D59489
Diffstat (limited to 'sys/dev/dwc')
0 files changed, 0 insertions, 0 deletions