[Intel-gfx] [RFC 0/7] Asynchronous flip implementation for i915

Karthik B S karthik.b.s at intel.com
Fri Mar 6 11:39:20 UTC 2020

Without async flip support in the kernel, fullscreen apps where game
resolution is equal to the screen resolution, must perform an extra blit
per frame prior to flipping.

Asynchronous page flips will also boost the FPS of Mesa benchmarks.

Karthik B S (7):
  drm/i915: Define flip done functions and enable IER
  drm/i915: Add support for async flips in I915
  drm/i915: Make commit call blocking in case of async flips
  drm/i915: Add checks specific to async flips
  drm/i915: Add flip_done_handler definition
  drm/i915: Enable and handle flip done interrupt
  drm/i915: Do not call drm_crtc_arm_vblank_event in async flips

 drivers/gpu/drm/i915/display/intel_display.c | 55 +++++++++++++++++--
 drivers/gpu/drm/i915/display/intel_sprite.c  | 12 ++--
 drivers/gpu/drm/i915/i915_irq.c              | 58 +++++++++++++++++++-
 drivers/gpu/drm/i915/i915_irq.h              |  2 +
 drivers/gpu/drm/i915/i915_reg.h              |  1 +
 5 files changed, 117 insertions(+), 11 deletions(-)


More information about the Intel-gfx mailing list