drm/i915: Add new frontbuffer tracking interface to queue flush

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We want to wait dma fences in dirtyfb ioctl. As we don't want to make
dirtyfb ioctl as blocking call we need to use
dma_fence_add_callback. Callback used for dma_fence_add_callback is
called from atomic context. Due to this we need to add a new
frontbuffer tracking interface to queue flush.

v3:
 - Check schedule work success rather than work being pending
 - Init flush work when frontbuffer struct is initialized
v2: Check if flush work is already pending

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230901093500.3463046-4-jouni.hogander@intel.com

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Jouni Högander 2023-09-01 12:34:59 +03:00

parent 35a97f56d6

commit 40320844ca

2 changed files with 32 additions and 0 deletions

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28

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

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4

drivers/gpu/drm/i915/display/intel_frontbuffer.h

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