From: Georgi Djakov <georgi.djakov@linaro.org>
To: linux-pm@vger.kernel.org
Cc: evgreen@chromium.org, bjorn.andersson@linaro.org,
agross@kernel.org, daidavid1@codeaurora.org,
masneyb@onstation.org, sibis@codeaurora.org,
linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
georgi.djakov@linaro.org
Subject: [PATCH 1/2] interconnect: Add a common standard aggregate function
Date: Thu, 28 Nov 2019 15:48:38 +0200 [thread overview]
Message-ID: <20191128134839.27606-1-georgi.djakov@linaro.org> (raw)
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>
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
---
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 0e4852feb395..2633fd223875 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);
next reply other threads:[~2019-11-28 13:48 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-28 13:48 Georgi Djakov [this message]
2019-11-28 13:48 ` [PATCH 2/2] interconnect: qcom: Use the standard aggregate function Georgi Djakov
2019-11-28 15:15 ` Brian Masney
2019-11-28 17:54 ` Bjorn Andersson
2019-12-06 20:44 ` Evan Green
2019-11-28 15:15 ` [PATCH 1/2] interconnect: Add a common " Brian Masney
2019-11-28 17:53 ` Bjorn Andersson
2019-12-06 20:43 ` Evan Green
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