[Intel-gfx] [PATCH v2 0/6] drm/i915: SAGV fixes

Ville Syrjala ville.syrjala at linux.intel.com
Wed Feb 16 17:42:44 UTC 2022

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

While pokingaround the watermarks/etc. I noticed our SAGV code
has a bunch of bugs. Let's try to fix it.

Pushed a few patches from v1 already. And based on the discussion
with Stan I added a few extra refactoring patches to the end in the
hopes of making the logic less confusing. I still prefer the oneliner
for the immediate bugfix in patch 2 so that we don't have to backport
the refactoring as well.

Cc: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>

Ville Syrjälä (6):
  drm/i915: Correctly populate use_sagv_wm for all pipes
  drm/i915: Fix bw atomic check when switching between SAGV vs. no SAGV
  drm/i915: Split pre-icl vs. icl+ SAGV hooks apart
  drm/i915: Pimp icl+ sagv pre/post update
  drm/i915: Extract icl_qgv_points_mask()
  drm/i915: Extract intel_bw_check_data_rate()

 drivers/gpu/drm/i915/display/intel_bw.c |  71 +++++++---
 drivers/gpu/drm/i915/intel_pm.c         | 177 ++++++++++++++----------
 2 files changed, 154 insertions(+), 94 deletions(-)


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