This set extends the configfs support to allow loading and unloading of configurations as binary files via configfs.
Additional attributes - load and unload are provided to in the configurations group to implement the load functionality.
Routines to generate binary configuration files are supplied in ./tools/coresight.
Example generator and reader applications are provided.
Tools may be cross compiled or built for use on host system.
Documentation is updated to describe feature usage.
Changes since v2: 1) Rebased & tested oo coresight/next - 5.18-rc2 2) Moved coresight config generator and reader programs from samples to tools/coresight. Docs updated to match. (suggested by Mathieu) 3) userspace builds now use userspace headers from tools/... 4) Other minor fixes from Mathieu's review.
Changes since v1: 1) Rebased to coresight/next - 5.16-rc1 with previous coresight config set applied. 2) Makefile.host fixed to default to all target.
Mike Leach (5): coresight: configfs: Add in functionality for load via configfs coresight: configfs: Add in binary attributes to load files coresight: configfs: Modify config files to allow userspace use coresight: tools: Add config file write and reader tools Documentation: coresight: docs for config load via configfs
.../trace/coresight/coresight-config.rst | 166 +++++- MAINTAINERS | 2 + drivers/hwtracing/coresight/Makefile | 2 +- .../coresight/coresight-config-file.c | 475 ++++++++++++++++++ .../coresight/coresight-config-file.h | 126 +++++ .../hwtracing/coresight/coresight-config.h | 27 + .../coresight/coresight-syscfg-configfs.c | 91 ++++ .../hwtracing/coresight/coresight-syscfg.c | 37 ++ .../hwtracing/coresight/coresight-syscfg.h | 2 + tools/coresight/Makefile | 51 ++ tools/coresight/coresight-cfg-bufw.c | 303 +++++++++++ tools/coresight/coresight-cfg-bufw.h | 26 + tools/coresight/coresight-cfg-example1.c | 65 +++ tools/coresight/coresight-cfg-examples.h | 27 + tools/coresight/coresight-cfg-file-read.c | 197 ++++++++ tools/coresight/coresight-cfg-filegen.c | 58 +++ tools/include/uapi/coresight-config-uapi.h | 76 +++ 17 files changed, 1724 insertions(+), 7 deletions(-) create mode 100644 drivers/hwtracing/coresight/coresight-config-file.c create mode 100644 drivers/hwtracing/coresight/coresight-config-file.h create mode 100644 tools/coresight/Makefile create mode 100644 tools/coresight/coresight-cfg-bufw.c create mode 100644 tools/coresight/coresight-cfg-bufw.h create mode 100644 tools/coresight/coresight-cfg-example1.c create mode 100644 tools/coresight/coresight-cfg-examples.h create mode 100644 tools/coresight/coresight-cfg-file-read.c create mode 100644 tools/coresight/coresight-cfg-filegen.c create mode 100644 tools/include/uapi/coresight-config-uapi.h