linux.git/drivers/interconnect/qcom, branch v5.7-rc3

interconnect: qcom: Fix uninitialized tcs_cmd::wait

2020-04-23T14:18:07+00:00

Currently, if tcs_cmd_gen is called with commit=false, then
tcs_cmd::wait is left uninitialized. Since the tcs_cmd structures passed
to this function aren't zero-initialized, then we're left with random
wait values. This results in waiting for completion for more commands
than is necessary, depending on what's on the stack at the time.

Removing the unnecessary if-condition fixes this, but add an explicit
memset of the tcs_cmd structure as well to ensure predictable behavior
if more tcs_cmd members are added in the future.

Fixes: 976daac4a1c5 ("interconnect: qcom: Consolidate interconnect RPMh support")
Signed-off-by: Mike Tipton 
Reviewed-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20200319231021.18108-1-mdtipton@codeaurora.org
Signed-off-by: Georgi Djakov 
Link: https://lore.kernel.org/r/20200415130327.23059-2-georgi.djakov@linaro.org
Signed-off-by: Greg Kroah-Hartman

interconnect: qcom: Add OSM L3 support on SC7180

2020-03-03T17:02:52+00:00

Add Operating State Manager (OSM) L3 interconnect provider support on
SC7180 SoCs.

Signed-off-by: Sibi Sankar 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200227105632.15041-6-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Add OSM L3 interconnect provider support

2020-03-03T17:02:52+00:00

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 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200227105632.15041-4-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Allow icc node to be used across icc providers

2020-03-03T17:02:52+00:00

Move the icc node ids to a common header, this will allow for
referencing/linking of icc nodes to multiple icc providers on
SDM845 SoCs.

Signed-off-by: Sibi Sankar 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200227105632.15041-2-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Add SC7180 interconnect provider driver

2020-03-03T17:02:52+00:00

Add driver for the Qualcomm interconnect buses found in SC7180 based
platforms. The topology consists of several NoCs that are controlled by
a remote processor that collects the aggregated bandwidth for each
master-slave pairs.

Signed-off-by: Odelu Kukatla 
Link: https://lore.kernel.org/r/1583241493-21212-3-git-send-email-okukatla@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: sdm845: Split qnodes into their respective NoCs

2020-02-28T10:11:40+00:00

In order to better represent the hardware and its different Network-On-Chip
devices, split the sdm845 provider driver into NoC specific providers.
Remove duplicate functionality already provided by the icc rpmh and
bcm voter drivers to calculate and commit bandwidth requests to hardware.

Signed-off-by: David Dai 
Signed-off-by: Odelu Kukatla 
Signed-off-by: Sibi Sankar 
Reviewed-by: Evan Green 
Link: https://lore.kernel.org/r/20200209183411.17195-6-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Consolidate interconnect RPMh support

2020-02-28T10:11:40+00:00

Add bcm voter driver and add support for RPMh specific interconnect
providers which implements the set and aggregate functionalities that
translates bandwidth requests into RPMh messages. These modules provide
a common set of functionalities for all Qualcomm RPMh based interconnect
providers and should help reduce code duplication when adding new
providers.

Signed-off-by: David Dai 
Signed-off-by: Odelu Kukatla 
Reviewed-by: Evan Green 
Signed-off-by: Sibi Sankar 
Link: https://lore.kernel.org/r/20200228095951.15457-1-sibis@codeaurora.org
Signed-off-by: Georgi Djakov

interconnect: qcom: Add MSM8916 interconnect provider driver

2020-01-07T07:30:09+00:00

Add driver for the Qualcomm interconnect buses found in MSM8916 based
platforms. The topology consists of three NoCs that are controlled by
a remote processor that collects the aggregated bandwidth for each
master-slave pairs.

Reviewed-by: Evan Green 
Signed-off-by: Georgi Djakov

interconnect: qcom: Use the standard aggregate function

2019-12-16T07:25:24+00:00

Now we have a common function for standard aggregation, so let's use it,
instead of duplicating the code.

Reviewed-by: Brian Masney 
Reviewed-by: Bjorn Andersson 
Reviewed-by: Evan Green 
Signed-off-by: Georgi Djakov

interconnect: qcom: Use the new common helper for node removal

2019-12-16T07:25:23+00:00

There is a new helper function for removing all nodes. Let's use it instead
of duplicating the code.

Reviewed-by: Bjorn Andersson 
Signed-off-by: Georgi Djakov