linux/drivers/interconnect, branch v5.7

interconnect: qcom: Move the static keyword to the front of declaration

2020-04-29T11:11:44Z

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 Signed-off-by: ChenTao Link: https://lore.kernel.org/r/20200423132142.45174-1-chentao107@huawei.com Signed-off-by: Georgi Djakov Link: https://lore.kernel.org/r/20200429101904.5771-2-georgi.djakov@linaro.org Signed-off-by: Greg Kroah-Hartman

interconnect: qcom: Fix uninitialized tcs_cmd::wait

2020-04-23T14:18:07Z

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

Merge tag 'icc-5.7-rc1' of https://git.linaro.org/people/georgi.djakov/linux into char-misc-next

2020-03-20T12:45:25Z

Georgi writes: interconnect changes for 5.7 Here is a pull request with interconnect changes for the 5.7-rc1 merge window. It contains just driver updates, and these are: - Refactoring of the SDM845 driver, which is now improved to better represent the hardware. - New driver for SC7180 platforms. - New driver for OSM L3 interconnect hardware found on SDM845/SC7180 platforms. Signed-off-by: Georgi Djakov * tag 'icc-5.7-rc1' of https://git.linaro.org/people/georgi.djakov/linux: interconnect: qcom: Add OSM L3 support on SC7180 dt-bindings: interconnect: Add OSM L3 DT binding on SC7180 interconnect: qcom: Add OSM L3 interconnect provider support dt-bindings: interconnect: Add OSM L3 DT bindings interconnect: qcom: Allow icc node to be used across icc providers interconnect: qcom: Add SC7180 interconnect provider driver dt-bindings: interconnect: Add Qualcomm SC7180 DT bindings interconnect: qcom: sdm845: Split qnodes into their respective NoCs interconnect: qcom: Consolidate interconnect RPMh support dt-bindings: interconnect: Update Qualcomm SDM845 DT bindings dt-bindings: interconnect: Add YAML schemas for QCOM bcm-voter dt-bindings: interconnect: Convert qcom,sdm845 to DT schema

interconnect: qcom: Add OSM L3 support on SC7180

2020-03-03T17:02:52Z

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

2020-03-03T17:02:52Z

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

2020-03-03T17:02:52Z

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

2020-03-03T17:02:52Z

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: Handle memory allocation errors

2020-03-03T07:02:57Z

When we allocate memory, kasprintf() can fail and we must check its return value. Fixes: 05309830e1f8 ("interconnect: Add a name to struct icc_path") Signed-off-by: Georgi Djakov Link: https://lore.kernel.org/r/20200226110420.5357-2-georgi.djakov@linaro.org Signed-off-by: Greg Kroah-Hartman

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

2020-02-28T10:11:40Z

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

2020-02-28T10:11:40Z

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