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author | Georgi Djakov <georgi.djakov@linaro.org> | 2019-11-28 15:48:38 +0200 |
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committer | Georgi Djakov <georgi.djakov@linaro.org> | 2019-12-16 09:25:24 +0200 |
commit | 3172e4d276315afa82c12b14c8dd0db526c7aff1 (patch) | |
tree | 877fb52d6afa9e4f3e86dab3bdd5ed41dfbd8c98 | |
parent | c46ab9db64979b0875fff79e1b00013343ca8286 (diff) | |
download | linux-stable-3172e4d276315afa82c12b14c8dd0db526c7aff1.tar.gz linux-stable-3172e4d276315afa82c12b14c8dd0db526c7aff1.tar.bz2 linux-stable-3172e4d276315afa82c12b14c8dd0db526c7aff1.zip |
interconnect: Add a common standard aggregate function
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 <evgreen@chromium.org>
Reviewed-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
-rw-r--r-- | drivers/interconnect/core.c | 10 | ||||
-rw-r--r-- | include/linux/interconnect-provider.h | 8 |
2 files changed, 18 insertions, 0 deletions
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 @@ out: 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); |