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[v2,0/4] Handle dma fences in dirtyfb ioctl

Message ID 20230727053518.709345-1-jouni.hogander@intel.com (mailing list archive)
Headers show
Series Handle dma fences in dirtyfb ioctl | expand

Message

Hogander, Jouni July 27, 2023, 5:35 a.m. UTC 
Currently i915 dirtyfb ioctl is not taking dma fences into
account. This works with features like FBC, PSR, DRRS because our gem
code is triggering flush again when rendering completes. We are
targeting in getting rid of frontbuffer tracking code: Flusing hook
from gem code will be removed as well.

This patch set is adding dma fence handling into i915 dirtyfb ioctl.

v2:
 - Clear fbc and psr busy bits on flip
 - Check if flush work is already pending
 - Use dma_resv_get_singleton

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

Jouni Högander (4):
  drm/i915/fbc: Clear frontbuffer busy bits on flip
  drm/i915/psr: Clear frontbuffer busy bits on flip
  drm/i915: Add new frontbuffer tracking interface to queue flush
  drm/i915: Handle dma fences in dirtyfb callback

 drivers/gpu/drm/i915/display/intel_fb.c       | 57 ++++++++++++++++++-
 drivers/gpu/drm/i915/display/intel_fbc.c      |  6 +-
 .../gpu/drm/i915/display/intel_frontbuffer.c  | 33 +++++++++++
 .../gpu/drm/i915/display/intel_frontbuffer.h  |  4 ++
 drivers/gpu/drm/i915/display/intel_psr.c      |  6 ++
 5 files changed, 99 insertions(+), 7 deletions(-)