drm/i915: modify max_bw to return index to intel_bw_info

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MTL uses the peak BW of a QGV point to lock the required QGV
point instead of the QGV index. Instead of passing the deratedbw
of the selected bw_info, return the index to the selected
bw_info so that either deratedbw or peakbw can be used based on
the platform.

v2: use idx to store index returned by max_bw_index functions

v3: return UINT_MAX in icl_max_bw_index in case no match found

v3: check idx >= ARRAY_SIZE

Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230606093509.221709-6-vinod.govindapillai@intel.com

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Vinod Govindapillai 2023-06-06 12:35:07 +03:00 • committed by Radhakrishna Sripada

parent 463cc9402e

commit 6400c215a1

1 changed files with 17 additions and 10 deletions

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

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