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Kai Vehmanen 18c574c7f3 rtos: add Zephyr implementation of sof/lib/memory.h 
Implement sof/lib/memory.h for Zephyr build and do not rely on
the xtos version for Zephyr builds.

Link: https://github.com/thesofproject/sof/issues/9015
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
 		2024-10-10 14:24:30 +03:00
..
include rtos: add Zephyr implementation of sof/lib/memory.h 2024-10-10 14:24:30 +03:00
lib regions_mm: Determine size of the mapped memory region before unmapping 2024-10-08 18:19:48 +03:00
scripts xtensa-build-zephyr.py: add new rimage_west_configuration() 2023-05-26 10:47:51 +03:00
test vmh_tests: Add set of parametrized tests and test suit 2024-03-05 11:11:20 +01:00
CMakeLists.txt zephyr: CMakeLists.txt: include required sources for imx95 2024-10-04 11:14:58 +03:00
FindZephyr-sdk.cmake .github: de-hardcode zephyr SDK version in sparse build 2022-10-10 11:29:05 +01:00
Kconfig kconfig: add PIPELINE_2_0 flag 2024-07-10 15:31:06 +03:00
README zephyr: replace obsolete README section with link to sof-docs 2022-02-07 10:43:28 +00:00
boot_test.c boot_test: change call of boot tests 2024-03-05 11:11:20 +01:00
docker-build.sh zephyr/docker-build.sh: explain why we autodetect with FindZephyr-sdk 2024-02-19 14:20:07 +00:00
docker-run.sh workflows: Upgrade docker container to v0.26.6 2023-12-14 11:34:12 +02:00
edf_schedule.c zephyr: edf-schedule: fix CONTAINER_OF type 2023-08-31 22:14:37 +03:00
lib.c zephyr: Add zephyr lib.c standalone file 2022-11-11 15:57:50 +02:00
module.yml zephyr: module: point to where the app is 2022-07-18 14:22:01 +01:00
schedule.c header: rtos: use rtos specific version of alloc.h 2022-09-12 11:44:27 +01:00
sof_shell.c zephyr: shell: add initial SOF custom commands 2024-07-04 15:05:13 +01:00
uuid-snippet.ld uuid: Use Zephyr ITERABLE sections for the UUID table 2024-07-05 14:32:56 +01:00
wrapper.c zephyr: delete dead defines 2024-09-26 17:28:15 +01:00

README 

SOF with Zephyr RTOS
====================

SOF currently uses the Cadence Xtos/HAL and it's own kernel functions as
its RTOS. SOF is moving to use Zephyr as it's RTOS in parallel to current
releases using xtos.

The initial "alpha" of SOF on Zephyr will use the Zephyr RTOS for boot, IRQs,
scheduling and memory allocation. Subsequent release will use more Zephyr
functionality as code is moved from SOF to Zephyr (i.e. EDF scheduler updates
copied from SOF to Zephyr).

Building SOF on Zephyr
======================

Section promoted to
https://thesofproject.github.io/latest/getting_started/build-guide/build-with-zephyr.html

Testing on Qemu
===============

Get the SOF qemu sof-v4.2 branch here.

git@github.com:thesofproject/qemu.git

Configure as

./configure' '--prefix=.' '--target-list=xtensa-softmmu,x86_64-softmmu' \
             '--enable-gtk' '--enable-sdl' '--enable-spice' \
             '--audio-drv-list=alsa' '--enable-libusb' \
             '--enable-usb-redir' '--enable-coroutine-pool' \
             '--disable-opengl' '--enable-fdt'

 Then run make.

FW can be tested as follows using the qemu helper script.

 ./xtensa-host.sh apl \
     -r ../../sof/sof/build_apl_gcc/src/arch/xtensa/rom-apl.bin \
     -k ../../zephyrproject/zephyr/build/zephyr/zephyr.ri

Where -r and -k are used to specify the ROM and kernel files.

The ROMS can be built from the SOF repo by running

./scripts/xtensa-build-all.sh  -r -a

Using console
-------------

Using logging and simulator backend with processing printk (LOG_PRINTK)
can bring console in qemu.

 - Enable xtensa simulator logging backend (LOG_BACKEND_XTENSA_SIM).
 - Enable printk processing(LOG_PRINTK)
 - Add "-semihosting" to qemu command line. Make sure it goes through scripts to real qemu.