drm/xe: Mutual exclusivity between CCS-mode and PF

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Due to SLA agreement between PF and VFs, currently we block CCS
mode changes if driver is running as PF, even if there are no VFs
enabled yet. Use lockdown mechanism provided by the PF to relax
that limitation and still enforce above VFs related requirements.

Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Nareshkumar Gollakoti <naresh.kumar.g@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://patch.msgid.link/20260202170810.1393147-6-naresh.kumar.g@intel.com

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Nareshkumar Gollakoti 2026-02-02 22:38:13 +05:30 • committed by Michal Wajdeczko

parent 4e8f602ac3

commit 9b5e995e61

1 changed files with 28 additions and 14 deletions

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drivers/gpu/drm/xe/xe_gt_ccs_mode.c

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