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| author | Georgi Djakov <georgi.djakov@linaro.org> | 2020-07-29 15:34:39 +0300 |
|---|---|---|
| committer | Georgi Djakov <georgi.djakov@linaro.org> | 2020-09-08 16:28:49 +0300 |
| commit | b41b0ce5982693e27307cfe0aaf49bc8e3a20900 (patch) | |
| tree | e616cf1187c5588ad3bf1ea9ce235270673b239b /include/linux/interconnect.h | |
| parent | 91e045b93db79a2ef66e045ad0d1f8f9d348e1f4 (diff) | |
| download | linux-b41b0ce5982693e27307cfe0aaf49bc8e3a20900.tar.xz | |
interconnect: Add bulk API helpers
There are drivers which just need to get multiple interconnect paths,
request some predefined amounts of bandwidth and then just toggle the
paths between enabled/disabled state.
The aim of this patch is simplify the above and to allow drivers to put
all the path names and bandwidth data into a single static icc_bulk_data
table and call the icc_bulk_* functions on that table in order to scale
all the interconnect paths in parallel.
Suggested-by: Evan Green <evgreen@chromium.org>
Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200729123439.9961-1-georgi.djakov@linaro.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Diffstat (limited to 'include/linux/interconnect.h')
| -rw-r--r-- | include/linux/interconnect.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/interconnect.h b/include/linux/interconnect.h index 3a63d98613fc..f2dd2fc8d3cd 100644 --- a/include/linux/interconnect.h +++ b/include/linux/interconnect.h @@ -23,6 +23,28 @@ struct icc_path; struct device; +/** + * struct icc_bulk_data - Data used for bulk icc operations. + * + * @path: reference to the interconnect path (internal use) + * @name: the name from the "interconnect-names" DT property + * @avg_bw: average bandwidth in icc units + * @peak_bw: peak bandwidth in icc units + */ +struct icc_bulk_data { + struct icc_path *path; + const char *name; + u32 avg_bw; + u32 peak_bw; +}; + +int __must_check of_icc_bulk_get(struct device *dev, int num_paths, + struct icc_bulk_data *paths); +void icc_bulk_put(int num_paths, struct icc_bulk_data *paths); +int icc_bulk_set_bw(int num_paths, const struct icc_bulk_data *paths); +int icc_bulk_enable(int num_paths, const struct icc_bulk_data *paths); +void icc_bulk_disable(int num_paths, const struct icc_bulk_data *paths); + #if IS_ENABLED(CONFIG_INTERCONNECT) struct icc_path *icc_get(struct device *dev, const int src_id, |