diff options
| author | Praveen Talari <praveen.talari@oss.qualcomm.com> | 2026-02-27 11:45:33 +0530 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2026-05-21 21:56:38 -0500 |
| commit | f746fedb892872cbcee698696303609f0ea76fd7 (patch) | |
| tree | 875b3d2ff8926a142adad98923984f991d0cae25 | |
| parent | e231930279b038ddd3274a4819b4bc2bf0dbab37 (diff) | |
| download | lwn-f746fedb892872cbcee698696303609f0ea76fd7.tar.gz lwn-f746fedb892872cbcee698696303609f0ea76fd7.zip | |
soc: qcom: geni-se: Add geni_icc_set_bw_ab() function
Add a new function geni_icc_set_bw_ab() that allows callers to set
average bandwidth values for all ICC (Interconnect) paths in a single
call. This function takes separate parameters for core, config, and DDR
average bandwidth values and applies them to the respective ICC paths.
This provides a more convenient API for drivers that need to configure
specific average bandwidth values.
Co-developed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Praveen Talari <praveen.talari@oss.qualcomm.com>
Tested-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Link: https://lore.kernel.org/r/20260227061544.1785978-3-praveen.talari@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | drivers/soc/qcom/qcom-geni-se.c | 22 | ||||
| -rw-r--r-- | include/linux/soc/qcom/geni-se.h | 1 |
2 files changed, 23 insertions, 0 deletions
diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c index b6167b968ef6..b0542f836453 100644 --- a/drivers/soc/qcom/qcom-geni-se.c +++ b/drivers/soc/qcom/qcom-geni-se.c @@ -946,6 +946,28 @@ int geni_icc_set_bw(struct geni_se *se) } EXPORT_SYMBOL_GPL(geni_icc_set_bw); +/** + * geni_icc_set_bw_ab() - Set average bandwidth for all ICC paths and apply + * @se: Pointer to the concerned serial engine. + * @core_ab: Average bandwidth in kBps for GENI_TO_CORE path. + * @cfg_ab: Average bandwidth in kBps for CPU_TO_GENI path. + * @ddr_ab: Average bandwidth in kBps for GENI_TO_DDR path. + * + * Sets bandwidth values for all ICC paths and applies them. DDR path is + * optional and only set if it exists. + * + * Return: 0 on success, negative error code on failure. + */ +int geni_icc_set_bw_ab(struct geni_se *se, u32 core_ab, u32 cfg_ab, u32 ddr_ab) +{ + se->icc_paths[GENI_TO_CORE].avg_bw = core_ab; + se->icc_paths[CPU_TO_GENI].avg_bw = cfg_ab; + se->icc_paths[GENI_TO_DDR].avg_bw = ddr_ab; + + return geni_icc_set_bw(se); +} +EXPORT_SYMBOL_GPL(geni_icc_set_bw_ab); + void geni_icc_set_tag(struct geni_se *se, u32 tag) { int i; diff --git a/include/linux/soc/qcom/geni-se.h b/include/linux/soc/qcom/geni-se.h index 0a984e2579fe..980aabea2157 100644 --- a/include/linux/soc/qcom/geni-se.h +++ b/include/linux/soc/qcom/geni-se.h @@ -528,6 +528,7 @@ void geni_se_rx_dma_unprep(struct geni_se *se, dma_addr_t iova, size_t len); int geni_icc_get(struct geni_se *se, const char *icc_ddr); int geni_icc_set_bw(struct geni_se *se); +int geni_icc_set_bw_ab(struct geni_se *se, u32 core_ab, u32 cfg_ab, u32 ddr_ab); void geni_icc_set_tag(struct geni_se *se, u32 tag); int geni_icc_enable(struct geni_se *se); |