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| author | Suman Anna <s-anna@ti.com> | 2023-01-06 17:40:44 +0530 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2023-01-06 09:15:19 -0700 |
| commit | 2da812ffcd11c31ef897615798a8a66041a5b73b (patch) | |
| tree | 4da2089ce605f4c58243c0e6275685b240495930 /tools/perf/scripts/python | |
| parent | 919e8942548aa878d374b1b51aa68fdf751f18b8 (diff) | |
remoteproc: pru: Make sysfs entries read-only for PRU client driven boots
The PRU remoteproc driver is not configured for 'auto-boot' by default,
and allows to be booted either by in-kernel PRU client drivers or by
userspace using the generic remoteproc sysfs interfaces. The sysfs
interfaces should not be permitted to change the remoteproc firmwares
or states when a PRU is being managed by an in-kernel client driver.
Use the newly introduced remoteproc generic 'sysfs_read_only' flag to
provide these restrictions by setting and clearing it appropriately
during the PRU acquire and release steps.
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20230106121046.886863-5-danishanwar@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions