[PATCH v4 0/7] soc: qcom: add in-kernel pd-mapper implementation

From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Bjorn Andersson <andersson@kernel.org>,
	 Konrad Dybcio <konrad.dybcio@linaro.org>,
	 Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org,
	 Johan Hovold <johan+linaro@kernel.org>
Subject: [PATCH v4 0/7] soc: qcom: add in-kernel pd-mapper implementation
Date: Mon, 11 Mar 2024 17:34:00 +0200	[thread overview]
Message-ID: <20240311-qcom-pd-mapper-v4-0-24679cca5c24@linaro.org> (raw)

Protection domain mapper is a QMI service providing mapping between
'protection domains' and services supported / allowed in these domains.
For example such mapping is required for loading of the WiFi firmware or
for properly starting up the UCSI / altmode / battery manager support.

The existing userspace implementation has several issue. It doesn't play
well with CONFIG_EXTRA_FIRMWARE, it doesn't reread the JSON files if the
firmware location is changed (or if the firmware was not available at
the time pd-mapper was started but the corresponding directory is
mounted later), etc.

However this configuration is largely static and common between
different platforms. Provide in-kernel service implementing static
per-platform data.

NOTE: this is an RFC / RFT, the domain mapping data might be inaccurate
(especially for SM6xxx and SC7xxx platforms), which is reflected by
several TODO and FIXME comments in the code.

--
2.39.2

---
Changes in v4:
- Fixed missing chunk, reenabled kfree in qmi_del_server (Konrad)
- Added configuration for sm6350 (Thanks to Luca)
- Removed RFC tag (Konrad)
- Link to v3: https://lore.kernel.org/r/20240304-qcom-pd-mapper-v3-0-6858fa1ac1c8@linaro.org

Changes in RFC v3:
- Send start / stop notifications when PD-mapper domain list is changed
- Reworked the way PD-mapper treats protection domains, register all of
  them in a single batch
- Added SC7180 domains configuration based on TCL Book 14 GO
- Link to v2: https://lore.kernel.org/r/20240301-qcom-pd-mapper-v2-0-5d12a081d9d1@linaro.org

Changes in RFC v2:
- Swapped num_domains / domains (Konrad)
- Fixed an issue with battery not working on sc8280xp
- Added missing configuration for QCS404

---
Dmitry Baryshkov (7):
      soc: qcom: pdr: protect locator_addr with the main mutex
      soc: qcom: qmi: add a way to remove running service
      soc: qcom: add pd-mapper implementation
      remoteproc: qcom: pas: correct data indentation
      remoteproc: qcom: adsp: add configuration for in-kernel pdm
      remoteproc: qcom: mss: add configuration for in-kernel pdm
      remoteproc: qcom: pas: add configuration for in-kernel pdm

 drivers/remoteproc/Kconfig          |   3 +
 drivers/remoteproc/qcom_q6v5_adsp.c |  82 +++++-
 drivers/remoteproc/qcom_q6v5_mss.c  |  80 +++++-
 drivers/remoteproc/qcom_q6v5_pas.c  | 502 ++++++++++++++++++++++++++++++------
 drivers/soc/qcom/Kconfig            |  10 +
 drivers/soc/qcom/Makefile           |   2 +
 drivers/soc/qcom/pdr_interface.c    |   6 +-
 drivers/soc/qcom/qcom_pdm.c         | 346 +++++++++++++++++++++++++
 drivers/soc/qcom/qcom_pdm_msg.c     | 188 ++++++++++++++
 drivers/soc/qcom/qcom_pdm_msg.h     |  66 +++++
 drivers/soc/qcom/qmi_interface.c    |  67 +++++
 include/linux/soc/qcom/pd_mapper.h  |  39 +++
 include/linux/soc/qcom/qmi.h        |   2 +
 13 files changed, 1302 insertions(+), 91 deletions(-)
---
base-commit: 1843e16d2df9d98427ef8045589571749d627cf7
change-id: 20240301-qcom-pd-mapper-e12d622d4ad0

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>