drm/i915: Extract skl_wm_latency()

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Extract the skl+ wm latency determination into a small helper
so that everyone has the same idea what the latency should be.

This introduces a slight functional change in that
skl_cursor_allocation() will now start to account for the
extra 4 usec that the kbk/cfl/cml IPC w/a adds.

v2: Rebase

Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230301162449.26672-2-ville.syrjala@linux.intel.com

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Ville Syrjälä 2023-03-01 18:24:48 +02:00

parent 673515ba02

commit 6b931346ed

1 changed files with 26 additions and 14 deletions

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

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