[PATCH 06/12] interconnect: Add a common standard aggregate function
From: Georgi Djakov <hidden>
Date: 2020-01-17 09:58:35
Also in:
lkml
Subsystem:
interconnect api, the rest · Maintainers:
Georgi Djakov, Linus Torvalds
Currently there is one very standard aggregation method that is used by several drivers. Let's add this as a common function, so that drivers could just point to it, instead of copy/pasting code. Suggested-by: Evan Green <redacted> Reviewed-by: Brian Masney <redacted> Reviewed-by: Bjorn Andersson <redacted> Reviewed-by: Evan Green <redacted> Signed-off-by: Georgi Djakov <redacted> --- drivers/interconnect/core.c | 10 ++++++++++ include/linux/interconnect-provider.h | 8 ++++++++ 2 files changed, 18 insertions(+)
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
index fbec2e4fdfeb..03625406c69f 100644
--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c@@ -221,6 +221,16 @@ static int apply_constraints(struct icc_path *path) return ret; } +int icc_std_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, + u32 peak_bw, u32 *agg_avg, u32 *agg_peak) +{ + *agg_avg += avg_bw; + *agg_peak = max(*agg_peak, peak_bw); + + return 0; +} +EXPORT_SYMBOL_GPL(icc_std_aggregate); + /* of_icc_xlate_onecell() - Translate function using a single index. * @spec: OF phandle args to map into an interconnect node. * @data: private data (pointer to struct icc_onecell_data)
diff --git a/include/linux/interconnect-provider.h b/include/linux/interconnect-provider.h
index 31440c921216..0c494534b4d3 100644
--- a/include/linux/interconnect-provider.h
+++ b/include/linux/interconnect-provider.h@@ -92,6 +92,8 @@ struct icc_node { #if IS_ENABLED(CONFIG_INTERCONNECT) +int icc_std_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, + u32 peak_bw, u32 *agg_avg, u32 *agg_peak); struct icc_node *icc_node_create(int id); void icc_node_destroy(int id); int icc_link_create(struct icc_node *node, const int dst_id);
@@ -104,6 +106,12 @@ int icc_provider_del(struct icc_provider *provider); #else +static inline int icc_std_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, + u32 peak_bw, u32 *agg_avg, u32 *agg_peak) +{ + return -ENOTSUPP; +} + static inline struct icc_node *icc_node_create(int id) { return ERR_PTR(-ENOTSUPP);