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In situations were the developer screws up by e.g. not giving the OSM
nodes unique identifiers the interconnect framework might mix up nodes
between the OSM L3 provider and e.g. the RPMh provider.
The resulting callstack contains "qcom_icc_set", which is not unique to
the OSM L3 provider driver. Once the faulting qcom_icc_set() is
identified it's further confusing that "qcom_icc_node" is different
between the different drivers.
To avoid this confusion, rename the node struct and the setter in the
OSM L3 driver to include "osm_l3" in their names.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Steev Klimaszewski <steev@kali.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210725031414.3961227-1-bjorn.andersson@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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Add support for the Qualcomm SC8180x platform to the OSM L3 driver.
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210725025834.3941777-2-bjorn.andersson@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
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* icc-syncstate:
interconnect: Add get_bw() callback
interconnect: Add sync state support
interconnect: qcom: Use icc_sync_state
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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Lowering the bandwidth on the bus might have negative consequences if
it's done before all consumers had a chance to cast their vote. Now by
default the framework sets the bandwidth to maximum during boot. We need
to use the icc_sync_state callback to notify the framework when all
consumers are probed and there is no need to keep the bandwidth set to
maximum anymore.
Link: https://lore.kernel.org/r/20200825170152.6434-4-georgi.djakov@linaro.org
Reviewed-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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These structures aren't modified at runtime. Mark them const so they get
moved to read-only memory. We have to cast away const in one place when
we store into the data member of struct icc_node. This is paired with a
re-const of the data member when it is extracted in qcom_icc_set().
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Link: https://lore.kernel.org/r/20200914182112.513981-1-swboyd@chromium.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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Add Epoch Subsystem (EPSS) L3 interconnect provider support on
SM8250 SoCs.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200801123049.32398-6-sibis@codeaurora.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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Lay the groundwork for adding Epoch Subsystem (EPSS) L3 support on
SM8250.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200801123049.32398-4-sibis@codeaurora.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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Add Operation State Manager (OSM) L3 interconnect provider support on
SM8150 SoCs.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200801123049.32398-3-sibis@codeaurora.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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Fix the following warning:
Move the static keyword to the front of declaration of sdm845_icc_osm_l3
sdm845_aggre1_noc sc7180_icc_osm_l3 sdm845_aggre2_noc sdm845_config_noc
sdm845_dc_noc sdm845_gladiator_noc sdm845_mem_noc sdm845_mmss_noc and
sdm845_system_noc, resolve the following compiler warning that can be
when building with warnings enabled (W=1):
drivers/interconnect/qcom/osm-l3.c:81:1: warning:
const static struct qcom_icc_desc sdm845_icc_osm_l3 = {
drivers/interconnect/qcom/osm-l3.c:94:1: warning:
const static struct qcom_icc_desc sc7180_icc_osm_l3 = {
drivers/interconnect/qcom/sdm845.c:195:1: warning:
const static struct qcom_icc_desc sdm845_aggre1_noc = {
drivers/interconnect/qcom/sdm845.c:223:1: warning:
const static struct qcom_icc_desc sdm845_aggre2_noc = {
drivers/interconnect/qcom/sdm845.c:284:1: warning:
const static struct qcom_icc_desc sdm845_config_noc = {
drivers/interconnect/qcom/sdm845.c:300:1: warning:
const static struct qcom_icc_desc sdm845_dc_noc = {
drivers/interconnect/qcom/sdm845.c:318:1: warning:
const static struct qcom_icc_desc sdm845_gladiator_noc = {
drivers/interconnect/qcom/sdm845.c:353:1: warning:
const static struct qcom_icc_desc sdm845_mem_noc = {
drivers/interconnect/qcom/sdm845.c:387:1: warning:
const static struct qcom_icc_desc sdm845_mmss_noc = {
drivers/interconnect/qcom/sdm845.c:433:1: warning:
const static struct qcom_icc_desc sdm845_system_noc = {
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: ChenTao <chentao107@huawei.com>
Link: https://lore.kernel.org/r/20200423132142.45174-1-chentao107@huawei.com
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Link: https://lore.kernel.org/r/20200429101904.5771-2-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Add Operating State Manager (OSM) L3 interconnect provider support on
SC7180 SoCs.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Link: https://lore.kernel.org/r/20200227105632.15041-6-sibis@codeaurora.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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On some Qualcomm SoCs, Operating State Manager (OSM) controls the
resources of scaling L3 caches. Add a driver to handle bandwidth
requests to OSM L3 from CPU on SDM845 SoCs.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Link: https://lore.kernel.org/r/20200227105632.15041-4-sibis@codeaurora.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
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