The TCS writes has no effect after the removal of the __tcs_set_trigger()
call, obviously it seems the RSC version 3 requires it to complete the transactions.
Fixes: 80c5be164a ("soc: qcom: rpmh-rsc: drop unused multi-threading and non-active TCS support")
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Caleb Connolly <caleb.connolly@linaro.org> # sm8250 rb5
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
On at least SM8650 this region might not be included in the memory map.
Use the new mmu_map_region() helper to map it during bind().
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
memcmp() can cause aborts on some platforms and generally seems to be
the wrong approach here. Use strncmp() instead which is more correct.
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
A lot of the features in here are only relevant when running
multi-threaded with interrupts. Drop everything except what we need to
run single-threaded with a single TCS (which is all the rpmh-rsc
framework in U-Boot supports).
Keep rpmh_write_async() for simplicity and make it wrap the regular
rpmh_write().
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Drop unused/unsupported Linux headers and add dm/device.h for U-Boot.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Minor adjustments to fix building with U-Boot and work correctly as a
synchronous driver without interrupts. RPMh is fast enough that we can
get away with just firing off requests and assuming they complete.
U-Boot behaviour changes are annotated with a "U-Boot:" comment.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Rework the rpmh-rsc initialization to use U-Boot's driver model and
initialize cmd-db.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Remove unsupported / unused Linux headers and add those needed for
U-Boot.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Since U-Boot is single threaded, we can avoid most of the complexity
that comes with handling more than one in-flight TCS. Drop all the rpmh
code associated with multi-threading as we'll instead wait for a
response on each TCS.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Keep the header pointer in the .data section so we don't initialize it
again after relocation, adjust cmd_db_get_header() to work with the
U-Boot API, and skip validating the header since all cmd-db users are
children of the rpmh-rsc and those children will only probe if cmd-db
initializes successfully.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Integrate cmd-db into the U-Boot driver model.
This is just a wrapper around an in-memory database, so we just need to
get the address and validate that cmd-db is there.
Since cmd_db_header will be stored in the .data section we can skip
bind if it's already set.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Due to our simpler rpmh-rsc driver and lack of debugfs, we don't need
quite a few cmd-db functions, just drop them.
Acked-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
