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drm/i915/bw: Untangle dbuf bw from the sagv/mem bw stuff

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Currently intel_bw.c contains basically three completely independent
parts:
- SAGV/memory bandwidth handling
- DBuf bandwidth handling
- "Maximum pipe read bandwidth" calculation, which is some kind
  of internal per-pipe bandwidth limit.

Carve out the DBuf bandwdith handling into a separate file since
there is no actual dependency between it and the rest of intel_bw.c.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20251013201236.30084-2-ville.syrjala@linux.intel.com
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
This commit is contained in:
Ville Syrjälä 2025-10-13 23:12:28 +03:00
commit ac930bab1c
11 changed files with 363 additions and 217 deletions
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