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Subject[PATCH v7 0/6] soc: qcom: add in-kernel pd-mapper implementation
Date
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.

Unlike previous revisions of the patchset, this iteration uses static
configuration per platform, rather than building it dynamically from the
list of DSPs being started.

To: Bjorn Andersson <andersson@kernel.org>
To: Konrad Dybcio <konrad.dybcio@linaro.org>
To: Sibi Sankar <quic_sibis@quicinc.com>
To: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-remoteproc@vger.kernel.org
Cc: Johan Hovold <johan+linaro@kernel.org>
Cc: Xilin Wu <wuxilin123@gmail.com>
Cc: "Bryan O'Donoghue" <bryan.odonoghue@linaro.org>
--

Changes in v7:
- Fixed modular build (Steev)
- Link to v6: https://lore.kernel.org/r/20240422-qcom-pd-mapper-v6-0-f96957d01207@linaro.org

Changes in v6:
- Reworked mutex to fix lockdep issue on deregistration
- Fixed dependencies between PD-mapper and remoteproc to fix modular
builds (Krzysztof)
- Added EXPORT_SYMBOL_GPL to fix modular builds (Krzysztof)
- Fixed kerneldocs (Krzysztof)
- Removed extra pr_debug messages (Krzysztof)
- Fixed wcss build (Krzysztof)
- Added platforms which do not require protection domain mapping to
silence the notice on those platforms
- Link to v5: https://lore.kernel.org/r/20240419-qcom-pd-mapper-v5-0-e35b6f847e99@linaro.org

Changes in v5:
- pdr: drop lock in pdr_register_listener, list_lock is already held (Chris Lew)
- pd_mapper: reworked to provide static configuration per platform
(Bjorn)
- Link to v4: https://lore.kernel.org/r/20240311-qcom-pd-mapper-v4-0-24679cca5c24@linaro.org

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 (6):
soc: qcom: pdr: protect locator_addr with the main mutex
soc: qcom: pdr: fix parsing of domains lists
soc: qcom: pdr: extract PDR message marshalling data
soc: qcom: qmi: add a way to remove running service
soc: qcom: add pd-mapper implementation
remoteproc: qcom: enable in-kernel PD mapper

drivers/remoteproc/Kconfig | 4 +
drivers/remoteproc/qcom_q6v5_adsp.c | 11 +-
drivers/remoteproc/qcom_q6v5_mss.c | 10 +-
drivers/remoteproc/qcom_q6v5_pas.c | 12 +-
drivers/remoteproc/qcom_q6v5_wcss.c | 12 +-
drivers/soc/qcom/Kconfig | 14 +
drivers/soc/qcom/Makefile | 2 +
drivers/soc/qcom/pdr_interface.c | 6 +-
drivers/soc/qcom/pdr_internal.h | 318 ++---------------
drivers/soc/qcom/qcom_pd_mapper.c | 656 ++++++++++++++++++++++++++++++++++++
drivers/soc/qcom/qcom_pdr_msg.c | 353 +++++++++++++++++++
drivers/soc/qcom/qmi_interface.c | 67 ++++
include/linux/soc/qcom/pd_mapper.h | 28 ++
include/linux/soc/qcom/qmi.h | 2 +
14 files changed, 1193 insertions(+), 302 deletions(-)
---
base-commit: a59668a9397e7245b26e9be85d23f242ff757ae8
change-id: 20240301-qcom-pd-mapper-e12d622d4ad0

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


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