drm/i915/display: Make intel_crtc_get_vblank_counter safe on PREEMPT_RT

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drm_crtc_accurate_vblank_count takes a spinlock, which we should avoid
in tracepoints and debug functions.

This also prevents taking the spinlock 2x during the critical
section of pipe updates for DSI updates.

Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/20250829131701.15607-2-dev@lankhorst.se
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>

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Maarten Lankhorst 2025-08-29 15:17:02 +02:00

parent ed1fbee3de

commit 76e46dbf80

1 changed files with 7 additions and 2 deletions

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drivers/gpu/drm/i915/display/intel_crtc.c

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