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* [PATCH v4 0/2] Block DC6 on Vblank enable for Panel Replay
@ 2024-09-19 12:37 Jouni Högander
  2024-09-19 12:37 ` [PATCH v4 1/2] drm/i915/psr: Add intel_psr_needs_block_dc_vblank for blocking dc entry Jouni Högander
                   ` (3 more replies)
  0 siblings, 4 replies; 6+ messages in thread
From: Jouni Högander @ 2024-09-19 12:37 UTC (permalink / raw)
  To: intel-gfx; +Cc: ville.syrjala, Jouni Högander

We need to block DC6 entry in case of Panel Replay as enabling VBI doesn't
prevent DC6 in case of Panel Replay. This causes problems if user-space is
polling for vblank events.

v4:
  - do flush_work for vblank_work on intel_crtc_vblank_off
  - no need to use READ_ONCE in bdw_enable_vblank
  - check crtc->block_dc_for_vblank in bdw_disable_vblank as well
  - move adding block_dc_for_vblank into patch 2.
  - patch 1. scope changed
v3: check that encoder is dp
v2: set/clear block_dc6_needed in intel_crtc_vblank_on/off

Jouni Högander (2):
  drm/i915/psr: Add intel_psr_needs_block_dc_vblank for blocking dc
    entry
  drm/i915/display: Prevent DC6 while vblank is enabled for Panel Replay

 drivers/gpu/drm/i915/display/intel_crtc.c     |  7 +++++
 .../gpu/drm/i915/display/intel_display_core.h |  2 ++
 .../gpu/drm/i915/display/intel_display_irq.c  | 27 ++++++++++++++++
 .../drm/i915/display/intel_display_types.h    |  2 ++
 drivers/gpu/drm/i915/display/intel_psr.c      | 31 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_psr.h      |  1 +
 6 files changed, 70 insertions(+)

-- 
2.34.1


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2024-09-20  4:02 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-09-19 12:37 [PATCH v4 0/2] Block DC6 on Vblank enable for Panel Replay Jouni Högander
2024-09-19 12:37 ` [PATCH v4 1/2] drm/i915/psr: Add intel_psr_needs_block_dc_vblank for blocking dc entry Jouni Högander
2024-09-19 12:37 ` [PATCH v4 2/2] drm/i915/display: Prevent DC6 while vblank is enabled for Panel Replay Jouni Högander
2024-09-19 13:39   ` Ville Syrjälä
2024-09-20  4:01 ` ✗ Fi.CI.SPARSE: warning for Block DC6 on Vblank enable for Panel Replay (rev4) Patchwork
2024-09-20  4:02 ` ✓ Fi.CI.BAT: success " Patchwork

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