[PATCH v2 0/7] Add SMEM-based speedbin matching

[Konrad Dybcio]

Newer (SM8550+) SoCs don't seem to have a nice speedbin fuse anymore,
but instead rely on a set of combinations of "feature code" (FC) and
"product code" (PC) identifiers to match the bins. This series adds
support for that.

I suppose a qcom/for-soc immutable branch would be in order if we want
to land this in the upcoming cycle.

FWIW I preferred the fuses myself..

Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
---
Changes in v3:
- Wrap the argument usage in new preprocessor macros in braces (Bjorn)
- Make the SOCINFO_FC_INT_MAX define inclusive, adjust .h and .c (Bjorn)
- Pick up rbs
- Rebase on next-20240605
- Drop the already-applied ("Avoid a nullptr dereference when speedbin
  setting fails")

Changes in v2:
- Separate moving existing and adding new defines
- Fix kerneldoc copypasta
- Remove some wrong comments and defines
- Remove assumed "max" values for PCs and external FCs
- Improve some commit messages
- Return -EOPNOTSUPP instead of -EINVAL when calling p/fcode getters
  on socinfo older than v16
- Drop pcode getters and evaluation (doesn't matter for Adreno on
  non-proto SoCs)
- Rework the speedbin logic to be hopefully saner
- Link to v1: https://lore.kernel.org/r/20240405-topic-smem_speedbin-v1-0-ce2b864251b1@xxxxxxxxxx

---
Konrad Dybcio (7):
      soc: qcom: Move some socinfo defines to the header
      soc: qcom: smem: Add a feature code getter
      drm/msm/adreno: Implement SMEM-based speed bin
      drm/msm/adreno: Add speedbin data for SM8550 / A740
      drm/msm/adreno: Define A530 speed bins explicitly
      drm/msm/adreno: Redo the speedbin assignment
      arm64: dts: qcom: sm8550: Wire up GPU speed bin & more OPPs

 arch/arm64/boot/dts/qcom/sm8550.dtsi       | 21 +++++++-
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c      | 34 ------------
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c      | 54 -------------------
 drivers/gpu/drm/msm/adreno/adreno_device.c | 12 +++++
 drivers/gpu/drm/msm/adreno/adreno_gpu.c    | 84 +++++++++++++++++++++++++++---
 drivers/gpu/drm/msm/adreno/adreno_gpu.h    | 11 ++--
 drivers/soc/qcom/smem.c                    | 33 ++++++++++++
 drivers/soc/qcom/socinfo.c                 |  8 ---
 include/linux/soc/qcom/smem.h              |  1 +
 include/linux/soc/qcom/socinfo.h           | 34 ++++++++++++
 10 files changed, 185 insertions(+), 107 deletions(-)
---
base-commit: 234cb065ad82915ff8d06ce01e01c3e640b674d2
change-id: 20240404-topic-smem_speedbin-8deecd0bef0e

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>