[RFC,0/5] soc: qcom: add in-kernel pd-mapper implementation

Message

Dmitry Baryshkov Dec. 26, 2023, 12:34 a.m. UTC

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 / RFC, 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.

Dmitry Baryshkov (5):
  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 |  67 +++++
 drivers/remoteproc/qcom_q6v5_mss.c  |  84 ++++++
 drivers/remoteproc/qcom_q6v5_pas.c  | 418 +++++++++++++++++++++++-----
 drivers/soc/qcom/Kconfig            |  10 +
 drivers/soc/qcom/Makefile           |   2 +
 drivers/soc/qcom/qcom_pdm.c         | 302 ++++++++++++++++++++
 drivers/soc/qcom/qcom_pdm_msg.c     | 189 +++++++++++++
 drivers/soc/qcom/qcom_pdm_msg.h     |  66 +++++
 include/linux/soc/qcom/pd_mapper.h  |  35 +++
 10 files changed, 1108 insertions(+), 68 deletions(-)
 create mode 100644 drivers/soc/qcom/qcom_pdm.c
 create mode 100644 drivers/soc/qcom/qcom_pdm_msg.c
 create mode 100644 drivers/soc/qcom/qcom_pdm_msg.h
 create mode 100644 include/linux/soc/qcom/pd_mapper.h