[SRU][Noble][PATCH 0/6] RFIM and SAGV Linux Support for G10 models

[Hui Wang]

BugLink: https://bugs.launchpad.net/bugs/2070158

[Impact]
This is a feature request from HP, RFIM is for frequency, SAGV is for voltage.
They are used as dynamic switching to reduce RF noise. RFIM is already
supported in the kernel, this patchset adds the SAGV feature.

[Fix]
Cherry-pick 6 commits from mainline kernel

[Test]
Enable the SAGV from the BIOS, booting with the patched kernel, after booting
up, run 'systemctl status dtt.service', we will get: service is enabled and
service is running
run 'cat /sys/kernel/debug/dri/0000:00:02.0/i915_sagv_status', we will get:
SAGV available: Yes
SAGV status: enabled

[Where problems could occur]
Because the fix is for i915, it is likely introduce regression on graphic,
but this possibility is very low. These 6 commits are merged to
mainline kernel from v6.10-rc1, so far there is no regression reported
on them. And we tested the patched kernel on different Intel machines, all
worked well.

Stanislav Lisovskiy (4):
  drm/i915/display: Add meaningful traces for QGV point info error
    handling
  drm/i915/display: Extract code required to calculate max qgv/psf gv
    point
  drm/i915/display: Disable SAGV on bw init, to force QGV point
    recalculation
  drm/i915/display: handle systems with duplicate psf gv points

Vinod Govindapillai (2):
  drm/i915/display: extract code to prepare qgv points mask
  drm/i915/display: force qgv check after the hw state readout

 drivers/gpu/drm/i915/display/intel_bw.c      | 160 ++++++++++++++-----
 drivers/gpu/drm/i915/display/intel_bw.h      |   6 +
 drivers/gpu/drm/i915/display/skl_watermark.c |   2 +-
 drivers/gpu/drm/i915/display/skl_watermark.h |   1 +
 drivers/gpu/drm/i915/soc/intel_dram.c        |   2 +
 5 files changed, 129 insertions(+), 42 deletions(-)

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2.34.1