mirror-linux/drivers/gpu
Matthew Brost efffd56e4b drm/xe: Disable timestamp WA on VFs
The timestamp WA does not work on a VF because it requires reading MMIO
registers, which are inaccessible on a VF. This timestamp WA confuses
LRC sampling on a VF during TDR, as the LRC timestamp would always read
as 1 for any active context. Disable the timestamp WA on VFs to avoid
this confusion.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Fixes: 617d824c53 ("drm/xe: Add WA BB to capture active context utilization")
Link: https://patch.msgid.link/20260110012739.2888434-7-matthew.brost@intel.com
2026-01-10 13:39:52 -08:00
..
drm drm/xe: Disable timestamp WA on VFs 2026-01-10 13:39:52 -08:00
host1x gpu: host1x: Syncpoint interrupt performance optimization 2025-11-14 18:27:19 +01:00
ipu-v3
nova-core Driver core changes for 6.19-rc1 2025-12-05 21:29:02 -08:00
trace
vga
Makefile