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interconnect: qcom: Add SDM660 interconnect provider driver

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Introduce a driver for the Qualcomm interconnect busses found in
the SDM630/SDM636/SDM660 SoCs.
The topology consists of several NoCs that are controlled by a
remote processor that collects the aggregated bandwidth for each
master-slave pairs.

On a note, these chips are managing the "bus QoS" in a "hybrid"
fashion: some of the paths in the topology are managed through
(and by, of course) the RPM uC, while some others are "AP Owned",
meaning that the AP shall do direct writes to the appropriate
QoS registers for the specific paths and ports, instead of sending
an indication to the RPM and leaving the job to that one.

Signed-off-by: AngeloGioacchino Del Regno <kholk11@gmail.com>
Link: https://lore.kernel.org/r/20201017133718.31327-3-kholk11@gmail.com
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
This commit is contained in:
AngeloGioacchino Del Regno
2021-03-08 15:09:45 +02:00
committed by Georgi Djakov
parent 33ad280034
commit f80a1d4143
3 changed files with 933 additions and 0 deletions
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9
drivers/interconnect/qcom/Kconfig
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@@ -74,6 +74,15 @@ config INTERCONNECT_QCOM_SC7180
This is a driver for the Qualcomm Network-on-Chip on sc7180-based
platforms.
config INTERCONNECT_QCOM_SDM660
tristate "Qualcomm SDM660 interconnect driver"
depends on INTERCONNECT_QCOM
depends on QCOM_SMD_RPM
select INTERCONNECT_QCOM_SMD_RPM
help
This is a driver for the Qualcomm Network-on-Chip on sdm660-based
platforms.
config INTERCONNECT_QCOM_SDM845
tristate "Qualcomm SDM845 interconnect driver"
depends on INTERCONNECT_QCOM_RPMH_POSSIBLE

2
drivers/interconnect/qcom/Makefile
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@@ -8,6 +8,7 @@ icc-osm-l3-objs := osm-l3.o
qnoc-qcs404-objs := qcs404.o
icc-rpmh-obj := icc-rpmh.o
qnoc-sc7180-objs := sc7180.o
qnoc-sdm660-objs := sdm660.o
qnoc-sdm845-objs := sdm845.o
qnoc-sdx55-objs := sdx55.o
qnoc-sm8150-objs := sm8150.o
@@ -22,6 +23,7 @@ obj-$(CONFIG_INTERCONNECT_QCOM_OSM_L3) += icc-osm-l3.o
obj-$(CONFIG_INTERCONNECT_QCOM_QCS404) += qnoc-qcs404.o
obj-$(CONFIG_INTERCONNECT_QCOM_RPMH) += icc-rpmh.o
obj-$(CONFIG_INTERCONNECT_QCOM_SC7180) += qnoc-sc7180.o
obj-$(CONFIG_INTERCONNECT_QCOM_SDM660) += qnoc-sdm660.o
obj-$(CONFIG_INTERCONNECT_QCOM_SDM845) += qnoc-sdm845.o
obj-$(CONFIG_INTERCONNECT_QCOM_SDX55) += qnoc-sdx55.o
obj-$(CONFIG_INTERCONNECT_QCOM_SM8150) += qnoc-sm8150.o

922
drivers/interconnect/qcom/sdm660.c Normal file
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