[PATCH 0/6] drm/i915/reset: Solve display vs. GPU reset deadlock, again

[Ville Syrjala <ville.syrjala@linux.intel.com>]

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

Apparently we lost proper display vs. GPU reset deadlock
handling. Try to bring it back, using a modern dma-fence
based approach.

Cc: Simona Vetter <simona.vetter@ffwll.ch>
Cc: Christian König <christian.koenig@amd.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Jouni Högander <jouni.hogander@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Ville Syrjälä (6):
  dma-buf: Remove old lies about dma_fence_wait_any_timeout() not
    accepting some fences
  drm/i915/reset: Reorganize display reset code
  drm/i915/reset: Move pending_fb_pin handling to i915
  drm/xe/display: Add init_clock_gating.h stubs
  drm/i915/reset: Handle the display vs. GPU reset deadlock using a
    custom dma-fence
  drm/i915/display: Make fence timeout infinite

 drivers/dma-buf/dma-fence.c                   |   5 +-
 drivers/gpu/drm/i915/display/intel_display.c  |  34 ++++--
 .../gpu/drm/i915/display/intel_display_core.h |   7 +-
 .../drm/i915/display/intel_display_driver.c   |   5 +
 .../drm/i915/display/intel_display_power.c    |   2 -
 .../drm/i915/display/intel_display_reset.c    | 103 +++++++++++++++---
 .../drm/i915/display/intel_display_reset.h    |   8 +-
 drivers/gpu/drm/i915/display/intel_overlay.c  |  10 +-
 drivers/gpu/drm/i915/gt/intel_reset.c         |  26 +++--
 drivers/gpu/drm/i915/i915_dpt.c               |   5 +-
 drivers/gpu/drm/i915/i915_drv.h               |   2 +
 drivers/gpu/drm/i915/i915_fb_pin.c            |   9 +-
 drivers/gpu/drm/i915/i915_overlay.c           |   6 +
 drivers/gpu/drm/xe/Makefile                   |   1 +
 .../compat-i915-headers/intel_clock_gating.h  |  10 +-
 15 files changed, 168 insertions(+), 65 deletions(-)

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2.52.0