This release

• fixes build warnings introduced by the use of VIRTIO_DRIVER_SUPPORT and VIRTIO_DEVICE_SUPPORT,
• fixes rpmsg_create_ept() which overwrites the priv field in the rpmsg_endpoint structure,
• is compatible with the libmetal v2024.05.0.

API Updates:

No Update

What's Changed

• V2024.05.0 release fixes by @arnopo in #596

Full Changelog: v2024.05.0...v2024.05.1

This release

• Fix the remoteproc lelf loader,
• add API release callback for the endpoint management to ensure that endpoint is released before freeing associate resources,
• add API wait callback to avoid looping in tx buffer get,
• add API for retrieving message buffer sizes,
• various code improvement in the library and application,
• fixes various bugs.

API Updates:

Deprecated APIs:

• cmake:

  • Deprecate VIRTIO_DEVICE_ONLY and VIRTIO_DRIVER_ONLY that are replaced by VIRTIO_DEVICE_SUPPORT=0/1 and VIRTIO_DEVICE_SUPPORT=0/1.
  • Remove deprecated VIRTIO_MASTER_ONLY and VIRTIO_MASTER_ONLY configs.

• virtio:

  • Deprecate virtio_create_virtqueues and virtio_delete_virtqueues that should only be used internally.

• virtio rpmsg:

  • deprecate rpmsg_virtio_set_status and rpmsg_virtio_get_status, virtio API should be used instead.

New APIs:

• rpmsg:

  • Add new rpmsg_ept_release_cb to inform application that a endpoint has been released.

• virtio rpmsg:

  • rpmsg_virtio_get_rx_buffer_sizeand rpmsg_get_rx_buffer_size: get the RPMsg buffer payload size.

• virtio:

  • wait_notified ops to implement specific action in virtio transport layer waiting new TX free buffer.

What's Changed

• rpmsg: set ept address to incease num when alloc from the bitmap by @GUIDINGLI in #514
• openamp: add new API rpmsg_virtio_get_rx_buffer_size() by @CV-Bowen in #521
• apps: Add use of rpmsg_virtio_get_tx/rx_buffer_size API by @arnopo in #535
• Fix #455 by @danmilea in #533
• rpmsg: let rpmsg_virtio_get_tx_buffer() always return idx in host side by @CV-Bowen in #520
• rpmsg: add release cb and refcnt in endpoint to fix ept used-after-free by @yintao707 in #508
• openamp: add new ops wait_notified() to avoid looping in tx buffer get by @CV-Bowen in #518
• remoteproc: clear bitmap when stop/shutdown by @CV-Bowen in #522
• rpmsg_virtio: add RPMSG_ASSERT to check the virtqueue add error by @CV-Bowen in #526
• Add missing include with EINVAL definition by @zaporozhets in #544
• lib: add include directory to open_amp-static target by @zaporozhets in #545
• remoteproc_virtio: initialize the virtio device id when create vdev by @CV-Bowen in #540
• openamp: change rx buffer hold flag to count by @CV-Bowen in #524
• remoteproc_virtio: fix vrings_info structure init by @arnopo in #554
• Fixes #550: OpenAMP elf loader loads ELF sections to their load addresses by @UmairKhanUET in #551
• load_fw: The firmware loading loop terminates prematurely by @UmairKhanUET in #556
• remoteproc_virtio: optimize the remoteproc virtio transport layer by @CV-Bowen in #489
• remoteproc: fix management of non loadable segments by @UmairKhanUET in #553
• openamp: decouple rpmsg virtio and remoteproc by @wyr8899 in #549
• Cleanup rsc_table_parser code and API by @glneo in #562
• Remove layer breaking functions from rpmsg_virtio by @glneo in #561
• remoteproc: Fix the NULL vs RPROC_IS_ERR() bug for remoteproc_get_rsc_table() by @mengtanhzc in #571
• apps: system: linux: Use metal_io_finish() for closing io by @glneo in #573
• apps: linux: generic: Use accessor functions for struct remoteproc_mem by @glneo in #563
• Add RPMsg API to get buffer size by @glneo in #565
• virtio: Use virtqueue_get_buffer() helpers by @glneo in #568
• remoteproc: Un-inline remoteproc_init_mem() and remoteproc_add_mem() by @glneo in #572
• apps: linux_rpc_demo: Do not access members of rpmsg_endpoint by @glneo in #566
• virtqueue: Fix comment on shm_io and fix type by @glneo in #570
• Fix #549 by @arnopo in #579
• apps: Move common function declaration to common header by @glneo in #564
• Use new VIRTIO_{DRIVER,DEVICE}_SUPPORT compiler define to improve code readability by @glneo in #560
• virtio: Remove unneeded forward declaration of virtio_feature_name() by @glneo in #583
• lib: remove deprecated MASTER/SLAVE configuration by @arnopo in #588
• lib: rpmsg_rpc: fix compilation warning and bad API by @arnopo in #587
• Fix broken CI by @arnopo in #586
• apps: remove remaining master terminology by @arnopo in #589
• virtio: Remove never used virtio_feature_name() by @glneo in #584
• fix Doxygen warnings by @arnopo in #590
• rpmsg_virtio: Move get RX buffer into receive loop and returned buffer kick to common location by @glneo in #585
• remoteproc: Assign ops and priv to rproc struct in init by default by @glneo in #582
• Finish converting rpmsg_virtio to use VIRTIO_ROLE_IS_{DRIVER,DEVICE}() by @glneo in #581
• [FIX FOR V2024.05] lib: fix build error using legacy VIRTIO_DEVICE/DRIVER_ONLY by @arnopo in #594
• release: open-amp 2024.05.0 by @arnopo in #593

New Contributors

• @yintao707 made their first contribution in #508
• @zaporozhets made their first contribution in #544
• @UmairKhanUET made their first contribution in #551
• @wyr8899 made their first contribution in #549
• @mengtanhzc made their first contribution in #571

Full Changelog: v2023.10.0...v2024.05.0

This release

• improves independence of the VIRTIO and remoteproc VIRTIO transport layer,
• introduces the VIRTIO MMIO native transport layer support, this is a first step to support VIRTIO protocol in the open-amp library,
• updates the cache management,
• improves the documentation with Doxygen,
• fixes various bugs.

API Updates:

Deprecated APIs:

• virtio_describe() function,
• WITH_DCACHE_VRINGS, WITH_DCACHE_BUFFERS, WITH_DCACHE_RSC_TABLE cmake options replaced by an unique option WITH_DCACHE.

updated APIs:

• virtio:
  • virtio_dispatch structure ; update create_virtqueues() ops parameter

New APIs:

• virtio:

  • virtio_get_devid(): get the virtio device type,

  • virtio_delete_virtqueues(): Delete the virtio device virtqueue,

  • virtio_get_status(): Set device status,

  • virtio_set_status(): Set device status,

  • virtio_read_config(): Retrieve configuration data from the device

  • virtio_write_config(): Write configuration data to the device

  • virtio_set_features(): set features supported by the VIRTIO driver,

  • virtio_get_features(): get features supported by the VIRTIO driver,

  • virtio_negotiate_features(): negotiate features between virtio device and driver,

  • virtio_reset_device(): reset the virtio device.

  • virtio_dispatch structure:

    • create_virtqueues: new ops to create a virtqueues,
    • delete_virtqueues: new ops to delete virtqueues.

• virtio-mmio:

  • virtio_mmio_register_device(): register a VIRTIO device,
  • virtio_mmio_setup_virtqueue(): setup a virtqueue structure,
  • virtio_mmio_device_init(): VIRTIO MMIO device initialization.

• virtqueue:

  • virtqueue_empty(): test if virtqueue is empty,
  • virtqueue_full(): test if virtqueue is full.

What's Changed

• apps: zynqmp: Add Versal_net IPI values. by @bentheredonethat in #490
• CI: update checkout action to V3 by @arnopo in #492
• virtio: follow virtio 1.2 spec, add more virtio status and device id by @CV-Bowen in #493
• CI: Fix checkpatch by @arnopo in #497
• virtio: add create_virtqueues and delete_virtqueues in virtio_dispatch by @CV-Bowen in #495
• remoteproc: do cache invalidation before reading rsc_table status by @iuliana-prodan in #500
• Virtio native support for lib openamp by @danmilea in #494
• CI: Fix Zephyr build by updating Zephyr SDK version to 0.16.1 by @arnopo in #504
• Updates and clean-up cache management by @iuliana-prodan in #502
• Doxygen updates for data structures by @tammyleino in #507
• Refactor VRING macros for AMP VIRTIO by @danmilea in #505
• Docs: enable readthedocs rendering (for PRs) by @wmamills in #511
• Doxygen update for virtio structures by @arnopo in #510
• github action: add stales action by @arnopo in #512
• Docs: style doxygen when built as part of OpenAMP docs by @wmamills in #516
• virtio: make unused function virtio_describe() deprecated by @arnopo in #509
• virtio: Fix delete_virtqueues function by @arnopo in #527
• github action: Fix stales action to not close PR/issue after 7 days by @arnopo in #528
• Readme improvement for v2023.10 release by @arnopo in #530
• release: open-amp 2023.10.0 by @arnopo in #531

New Contributors

• @CV-Bowen made their first contribution in #493
• @iuliana-prodan made their first contribution in #500
• @wmamills made their first contribution in #511

Full Changelog: v2023.04.0...v2023.10.0

This release

• introduce API documentation generation using Doxygen (only functions documentation has been reworked as a first step),
• fixes various bugs.

API Updates:

No Update

What's Changed

• Fix warn: declaration of 'vring_rsc' shadows a previous local by @xiaoxiang781216 in #439
• CI: fix Zephyr build issue resulting from the introduction of sysbuild by @arnopo in #451
• Fix shadow warnings in application code and renforce CI build by @arnopo in #440
• Added build for Doxygen docs by @tammyleino in #459
• readme: Fix broken openamp-rp mailing list link by @hiagofranco in #460
• openamp: fix remoteproc_load_noblock hasn't update rsc_io by @bentheredonethat in #464
• BUGFIX: rpmsg: do cache_invalidate() when real data returned by @GUIDINGLI in #466
• BUGFIX: change unsuitable atomic_int to atomic_flag by @mzyx-hnu in #472
• zynq7, microblaze resource table: virtio notifyid by @kernelchuk in #467
• BUG FIX: rpmsg: add cache flush when hold rx buffer by @GUIDINGLI in #465
• checkpatch: fix TYPO_SPELLING check for words with apostrophe by @arnopo in #484
• version: use generated version_def.h by @kernelchuk in #469
• Function header description consistency by @tammyleino in #478
• release: open-amp 2023.04.0 by @arnopo in #485

New Contributors

• @hiagofranco made their first contribution in #460
• @mzyx-hnu made their first contribution in #472

Full Changelog: v2022.10.0...v2023.04.0

This release

• fix a build warning
• is compatible with the libmetal v2022.10.0

API Updates:

No Update

What's Changed

• Fix warn: declaration of 'vring_rsc' shadows a previous local by @xiaoxiang781216 in #439

Full Changelog: v2022.10.0...v2022.10.1

This release

• adds the capability to split the shared memory in a TX and a RX shared memories for low power and memory access right optimizations,
• removes API that has been deprecated for 2 years,
• provides capability to release an unused buffer when the no copy API is used,
• fixes miscellaneous bugs, typos and improve CI tests.

API Updates:

• remove deprecated rpmsg_init_ept,
• add ns_unbind_cb callback handler for name service destroyed announcement,
• add rpmsg_release_tx_buffer API to release an unused TX buffer reserved by the rpmsg_get_tx_payload_buffer API.

What's Changed

• rpmsg: remove rpmsg_init_ept by @xiaoxiang781216 in #332
• apps: Remove leading space in CMake linker directive variables. by @edmooring in #383
• openamp: add ns_unbind_cb to rpmsg_device by @xiaoxiang781216 in #376
• Fix CMake Deprecation Warnings by @edmooring in #389
• lib: Remove warnings from -Wcast-align by @edmooring in #388
• apps: machines: clean-up the virtio device features definition by @arnopo in #391
• doc: clean-up data structures by @arnopo in #392
• README fix some links by @arnopo in #395
• Terminology: Replace potentially offensive terms in documentation by @arnopo in #396
• Add missing macros for driver/device-only compilation by @tammyleino in #409
• virtqueue_add_consumed_buffer input parameter fix by @tammyleino in #411
• openamp: add available_idx to dump by @GUIDINGLI in #412
• CI: Fix Zephyr build by updating Zephyr SDK version to 0.15.0 by @arnopo in #417
• Additional input parameter checks for APIs by @tammyleino in #408
• linux_rpc_demo: do not include rsc_table.h by @kernelchuk in #416
• Vring descriptor count must be limited to 65k per device by @tammyleino in #407
• handle_vdev_rsc must return error if notifyid cannot be assigned by @tammyleino in #404
• remoteproc_allocate_id not treating notifyid as 32-bits by @tammyleino in #403
• openamp: divide shram to TX shram & RX shram by @Donny9 in #375
• app: rpc_demod: fix buffer overflow in handle_read by @kernelchuk in #425
• README: Remove deprecated method to build open-amp lib for zephyr by @arnopo in #431
• Update rpc_demo description by @TanmayShah-xilinx in #429
• Introduce rpmsg_release_tx_buffer API by @arnopo in #401
• remoteproc: Fix build warning in rproc_virtio_create_vdev function by @arnopo in #435
• zynqmp_r5 resource table: Change notifyid for the virtio device by @edmooring in #438

New Contributors

• @Donny9 made their first contribution in #375
• @TanmayShah-xilinx made their first contribution in #429

Note

The change to the notifyid for the virtio device in #438 is due to a quirk of the Linux remoteproc implementation. When a file is loaded onto the remote processor, the Linux kernel replaces the contents of the notifyid field in the vring structure with values it allocates. This led to a duplicate notifyid which was detected by the improved error checking in #404

Full Changelog: v2022.04.0...v2022.10.0

This release

• adds the capability for the host to set sizes of TX and RX buffers independently,
• fixes miscellaneous bugs, typos and improve CI tests.

API Update:

Following API updates can have impact on the application

• remoteproc_init function:
  The struct remoteproc *remoteproc_init paramter is now a const. This
  can generate some warning (or error) during compilation.
• rpmsg_virtio_get_buffer_size function:
  Can return a negative value on error instead of 0.
• Replacement of potentially objectionable terms:
  Can generate deprecation warning or build error if not replaced in application code and build environment.
  • VIRTIO_DEV_SLAVE define has been replaced by VIRTIO_DEV_DEVICE,
  • VIRTIO_DEV_MASTER define has been replaced by VIRTIO_DEV_DRIVER,
  • VIRTIO_SLAVE_ONLY compilation option has been replaced by VIRTIO_DEVICE_ONLY,
  • VIRTIO_MASTER_ONLY compilation option has been replaced by VIRTIO_DRIVER_ONLY,
  • WITH_VIRTIO_MASTER cmake option has been replaced by WITH_VIRTIO_DRIVER
  • WITH_VIRTIO_SLAVE cmake option has been replaced by WITH_VIRTIO_DEVICE

What's Changed

• CI: Update branch from "master" to "main". by @edmooring in #321
• remoteproc: fix notifyid assignment in handle_vdev_rsc by @lozdznil in #316
• Remove vim modeline comments by @supergaute in #311
• rpmsg_virtio: configuration option to set buffer sizes per instance by @hubertmis in #328
• rpmsg_virtio: move RPMSG_VIRTIO_DEFAULT_CONFIG to private location by @xiaoxiang781216 in #330
• rpmsg: merge rpmsg_initialize_ept into rpmsg_register_endpoint by @xiaoxiang781216 in #331
• fix remoteproc get wrong memory when memory region are continuous and Invalidate the ring region but use non initialize ring index. by @joshualin-petaio in #339
• remoteproc: fix memory issue if load resource table failed by @anchao in #362
• Removed unused code from rpmsg_get_endpoint by @tammyleino in #364
• CI: enable codespell check by @arnopo in #367
• Fix various typo with codespell by @arnopo in #366
• Enable OpenAMP Demo configuration via CMake by @bentheredonethat in #365
• virtqueue_add_buffer must check that there is room for multiple buffers by @tammyleino in #368
• remoteproc_virtio_notify could use null notify operation by @tammyleino in #371
• Document buf argument in get_mem for remoteproc_ops structure by @tammyleino in #372
• remoteproc_get_mem could wrongly match on wrong name by @tammyleino in #374
• checkpatch: Increase the default limit to 100 characters by @arnopo in #378
• openamp: add const for remoteproc_ops, image_store_ops and loader_ops by @xiaoxiang781216 in #336
• _rpmsg_virtio_get_buffer_size should return error on failure by @tammyleino in #369
• release: open-amp 2022.04.0 by @arnopo in #382

New Contributors

• @lozdznil made their first contribution in #316
• @hubertmis made their first contribution in #328
• @joshualin-petaio made their first contribution in #339
• @anchao made their first contribution in #362
• @tammyleino made their first contribution in #364

Full Changelog: v2021.10.0...v2022.04.0

This release:

• Adds support for manually-managed cached memory
• Adds a generic rpc service and associated example

Arnaud Pouliquen (6):
CI: Zephyr test: copy whole libmetal directory for test
CI: Fix Zephyr build by updating Zephyr SDK version
CI: Fix Zephyr build by updating Zephyr SDK version to 13.0
CI: Fix Zephyr build error due to cmake version
CI: Fix Zephyr build by updating Zephyr SDK version to 0.13.1
release: open-amp 2021.10

Carlo Caione (2):
openamp: Introduce cache helpers
Introduce CMake options to enable cache operations

Ed Mooring (1):
MAINTAINERS: Update maintainer email address.

ViswaHarsha C (2):
lib: added generic rpmsg services
apps: add linux applications for linux rpc communication

This release:

• Adds semantic versioning to the OpenAMP library and API (see http://semver.org/).
• Reintroduces zero-copy transmit and receive for RPMsg.
• Adds a new callback to remoteproc_ops to allow client software to more easily manage memory.
• Fixes various bugs and issues.

Arnaud Pouliquen (16):
apps: add missing license information
lib: add missing license information for rpmsg_retarget
apps: rpc_demo: fix compilation warning
apps: move nocopy ping test to example
apps: add responder part of the no copy example
apps: update nocopy ping to use nocopy API for reception.
Readme: add description for zero copy demo
CI: compliance: fail on errors
CI: compliance: fix check_compliance workflow
rpmsg: fix variable overflow
README: Add version chapter
Rework the version management
lib: add new API to get the library version
apps: add libraries version information in echo example
CI: Copy the VERSION file in zephyr openamp module
version: add generated define for version

Ben Levinsky (3):
apps: update memory management
apps: machine: update cleanup of rpmsg and virtio devices
apps: demos: update to hand rproc for cleanup

Chao An (1):
rpmsg: bring back zero copy transfer

GFWisshit (1):
Fix compilation error.Add missing semicolon.

Guiding Li (2):
openamp: fix ns_unbind_cb error when meet RPMSG_NS_DESTROY
openamp: replace while(1) to metal_assert in RPMSG_ASSERT

Michael Bullis (1):
rpc_demo: fix spelling and grammar in code comment

Sergei Korneichuk (1):
apps: machine: Fix MicroBlaze compilation error

Xiang Xiao (4):
rename size parameter to len for rpmsg_send_offchannel_raw
rpmsg: virito: limit the buffer allocate from shared memory pool
apps: add msg-test-rpmsg-nocopy-ping test
remoteproc: add get_mem callback to remoteproc_ops

• Deprecate rpmsg_init_ept() API
• Add support for MicroBlaze platform
• Update CMake minimum version to 3.0.2
• Change rpmsg endpoint address allocation (start address at 1024 instead of 0)
• Bug fixes

Arnaud Pouliquen (6):
cmake: fix LIBMETAL naming warning
apps: zynqmp:fix indentation
rpmsg: set rpmsg_init_ept API as deprecated
CI: rework compliance test
CI: add action to build for different platforms
CI: rearrange github workflow

Ben Levinsky (6):
apps: zynqmp_r5: add switch to run r5 demo without IPI
apps: zynqmp: add switch to run linux demo without IPI
apps: zynqmp: support for demos without IPI
apps: zynqmp_r5: support for demos without IPI
Add support for MicroBlaze in programmable logic (PL) to OpenAMP.
apps: zynqmp: fix compilation issue from rebase

Ed Mooring (2):
Add <errno.h> explicitly to all files that use errno values.
CMake: Update minimum CMake version to 3.0.2.

Simon Leiner (1):
Cast allocated memory to target type

Torsten Rasmussen (1):
cmake: set the policy CMP0077 to NEW

Xiang Xiao (9):
rpmsg: remove the address check in rpmsg_send/rpmsg_trysend
rpmsg: rpmsg_create_ept return RPMSG_ERR_ADDR if the address is in use
implement rproc_virtio_read_config/rproc_virtio_write_config
rpmsg: reserve 0-1023 for predefined services in rpmsg_create_ept
apps: replace all zero address to RPMSG_ADDR_ANY
rpmsg: rpmsg_unregister_endpoint management cleanup
rpmsg: rpmsg_create_ept don't send RPMSG_NS_CREATE if name is empty
rpmsg: zero out rdev field in rpmsg_unregister_endpoint
rpmsg: send RPMSG_NS_DESTROY only when addr >= 1024