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Re: [RFC]: remoteproc state definition discrepancy in openamp library and Linux kernel framework

by Tanmay Shah

On 6/19/25 10:53 AM, Mathieu Poirier wrote: > Good morning, > > On Wed, 18 Jun 2025 at 10:44, Tanmay Shah <tanmay.shah(a)amd.com> wrote: >> >> Hello all, >> >> I found out that there is discrepancy between remoteproc state >> definition in kernel and open-amp library: >> >> Linux kernel side definition: >> >> https://github.com/torvalds/linux/blob/52da431bf03b5506203bca27fe14a97895c8… >> >> >> enum rproc_state { >> RPROC_OFFLINE = 0, >> RPROC_SUSPENDED = 1, >> RPROC_RUNNING = 2, >> RPROC_CRASHED = 3, >> RPROC_DELETED = 4, >> RPROC_ATTACHED = 5, >> RPROC_DETACHED = 6, >> RPROC_LAST = 7, >> }; >> >> open-amp library side definition: >> >> https://github.com/OpenAMP/open-amp/blob/391671ba24840833d882c1a75c5d730770… >> >> /** >> * @brief Remote processor states >> */ >> enum remoteproc_state { >> /** Remote is offline */ >> RPROC_OFFLINE = 0, >> /** Remote is configured */ >> RPROC_CONFIGURED = 1, >> /** Remote is ready to start */ >> RPROC_READY = 2, >> /** Remote is up and running */ >> RPROC_RUNNING = 3, >> /** Remote is suspended */ >> RPROC_SUSPENDED = 4, >> /** Remote is has error; need to recover */ >> RPROC_ERROR = 5, >> /** Remote is stopped */ >> RPROC_STOPPED = 6, >> /** Just keep this one at the end */ >> RPROC_LAST = 7, >> }; >> >> IIUC, both side state definition should match, so that if remote needs >> to report crash error, it can use same name and mapped int value in the >> code. Please let me know if I am missing something in this understanding. >> >> Should we fix this? >> > > The kernel's remoteproc subsystem and openAMP library are two > independent projects. OpenAMP does its own governance but I > personally don't see a reason to harmonize the value of their internal > states. > > Thanks, > Mathieu > Thanks Mathieu for your response. Yes we are reaching the same conclusion. >> If so, I believe it should be library side. >> >> I am looking for suggestion to fix this without breaking backward >> compatibility: >> >> Approach 1: deprecate library side remoteproc_state definition. >> >> deprecate current enum (with __deprecated attribute or add comment) and >> introduce new one with same definition as in linux kernel. Then after 2 >> year (as per code of conduct policy) we can remove remoteproc_state. >> >> Approach 2: Platform driver uses library side remoteproc state definition. >> >> If we don't want to fix this, then another approach is, platform driver >> in linux kernel should have library-side remoteproc state definition and >> convert interprete it to kernel side remoteproc definition. >> >> With this second approach we don't have to deprecate anything, but >> platform drivers are responsible to maintain different remoteproc_state >> definition. (Might create confusion). >> >> >> I am open to any other suggestion regarding this. >> >> Thanks, >> Tanmay >>

9 months

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[OpenAMP/open-amp]

by Arnaud Pouliquen

Branch: refs/tags/2025.04.0 Home: https://github.com/OpenAMP/open-amp To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/open-amp/settings/notifications

9 months, 3 weeks

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[OpenAMP/open-amp]

by Arnaud Pouliquen

Branch: refs/tags/v2025.04.0 Home: https://github.com/OpenAMP/open-amp To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/open-amp/settings/notifications

9 months, 3 weeks

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[OpenAMP/libmetal] 96c7cd: system: linux: include missing headers

by Arnaud Pouliquen

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: 96c7cd26dca9b99986441d5e4dced0bb66e0ea4f https://github.com/OpenAMP/libmetal/commit/96c7cd26dca9b99986441d5e4dced0bb… Author: Vincenzo Calabretta <vincenzo.calabretta(a)embedded-brains.de> Date: 2025-06-02 (Mon, 02 Jun 2025) Changed paths: M test/system/linux/threads.c Log Message: ----------- system: linux: include missing headers Do not rely on indirect includes since they may not be present on some systems. Signed-off-by: Vincenzo Calabretta <vincenzo.calabretta(a)embedded-brains.de> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/libmetal/settings/notifications

9 months, 3 weeks

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[OpenAMP/openamp-system-reference] d05460: examples: dts: xlnx: update dtso for remoteproc nodes

by Tanmay

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: d0546027cd321466dfaf4f8888f9dd5432c7013f https://github.com/OpenAMP/openamp-system-reference/commit/d0546027cd321466… Author: Tanmay Shah <tanmay.shah(a)amd.com> Date: 2025-05-28 (Wed, 28 May 2025) Changed paths: M examples/linux/dts/xilinx/Makefile M examples/linux/dts/xilinx/xilinx-openamp-for-v6.x.dtso A examples/linux/dts/xilinx/zynqmp-lockstep.dtso M examples/linux/dts/xilinx/zynqmp-openamp.dtso R examples/linux/dts/xilinx/zynqmp-split.dtso Log Message: ----------- examples: dts: xlnx: update dtso for remoteproc nodes Use new remoteproc nodes introduced in 6.12 kernel. From 6.12 kernel, split mode is enabled by default for zcu102 board. All other boards remoteproc lockstep and split nodes are disabled by default. So enable split mode by default for all the boards via zynqmp-openamp.dtso and introduce zynqmp-lockstep.dtso to enable lockstep mode only when needed. Signed-off-by: Tanmay Shah <tanmay.shah(a)amd.com> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/openamp-system-reference/settings/notifications

9 months, 3 weeks

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[OpenAMP/libmetal] dcf121: lib: optionally provide ATOMIC_VAR_INIT()

by Sebastian Huber

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: dcf121ab617443166e976afbdd848569cf773895 https://github.com/OpenAMP/libmetal/commit/dcf121ab617443166e976afbdd848569… Author: Sebastian Huber <sebastian.huber(a)embedded-brains.de> Date: 2025-05-28 (Wed, 28 May 2025) Changed paths: M lib/atomic.h Log Message: ----------- lib: optionally provide ATOMIC_VAR_INIT() The ATOMIC_VAR_INIT() macro was deprecated in C17 and removed in C23. Signed-off-by: Sebastian Huber <sebastian.huber(a)embedded-brains.de> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/libmetal/settings/notifications

9 months, 3 weeks

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[OpenAMP/openamp-system-reference] 63fbb9: zynq: Remove support for Zynq-7000 SoC

by ben

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: 63fbb90069212ac0b70ba293f7cf31405d02acee https://github.com/OpenAMP/openamp-system-reference/commit/63fbb90069212ac0… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2025-05-28 (Wed, 28 May 2025) Changed paths: R examples/legacy_apps/cmake/platforms/zynq7_generic.cmake R examples/legacy_apps/cmake/platforms/zynq7_linux.cmake R examples/legacy_apps/machine/zynq7/CMakeLists.txt R examples/legacy_apps/machine/zynq7/platform_info.c R examples/legacy_apps/machine/zynq7/platform_info.h R examples/legacy_apps/machine/zynq7/platform_info_remoteproc_master.c R examples/legacy_apps/machine/zynq7/rsc_table.c R examples/legacy_apps/machine/zynq7/rsc_table.h R examples/legacy_apps/machine/zynq7/zynq_a9_rproc.c R examples/legacy_apps/system/generic/machine/zynq7/CMakeLists.txt R examples/legacy_apps/system/generic/machine/zynq7/Xilinx.spec R examples/legacy_apps/system/generic/machine/zynq7/helper.c R examples/legacy_apps/system/generic/machine/zynq7/linker_master.ld R examples/legacy_apps/system/generic/machine/zynq7/linker_remote.ld Log Message: ----------- zynq: Remove support for Zynq-7000 SoC Remove openamp support for Zynq-7000 SoC, following changes are done 1) remove folder apps/machine/zynq7 2) remove folder apps/system/generic/machine/zynq7 3) remove file cmake/platforms/zynq7_generic.cmake 4) remove file cmake/platforms/zynq7_linux.cmake 5) Modify README.md files Reasons to remove: 1) Support for Zynq-7000 has ended 2) Removing redundant or unmaintained code 3) Reduce technical debt carried by OpenAMP team 4) very few customer using openamp on Zynq-7000 SoC For using Zynq-7000 SoC support last working and tested version is (v2023.10) https://github.com/OpenAMP/open-amp/tree/v2023.10 Signed-off-by: Rajiv Mohan <rajiv.mohan(a)amd.com> Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/openamp-system-reference/settings/notifications

9 months, 3 weeks

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[OpenAMP/open-amp] 6ecc2e: Updated virtio drivers for network, entropy and se...

by Arnaud Pouliquen

Branch: refs/heads/virtio-exp-v2025.04 Home: https://github.com/OpenAMP/open-amp Commit: 6ecc2ef43e992d85cdeb7b883552a48bfa9bcd24 https://github.com/OpenAMP/open-amp/commit/6ecc2ef43e992d85cdeb7b883552a48b… Author: Dan Milea <dan.milea(a)windriver.com> Date: 2025-05-23 (Fri, 23 May 2025) Changed paths: M lib/virtio_mmio/virtio_mmio_drv.c M lib/virtio_mmio/virtio_net_drv.c M lib/virtio_mmio/virtio_rng_drv.c M lib/virtio_mmio/virtio_serial_drv.c Log Message: ----------- Updated virtio drivers for network, entropy and serial devices The drivers now support devices with version numbers 2 (virtio >= 1.0) in addition to 1 (legacy). Signed-off-by: Dan Milea <dan.milea(a)windriver.com> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/open-amp/settings/notifications

10 months

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[OpenAMP/libmetal] f2990d: doxygen: tell doxygen to generate tag file for ext...

by Arnaud Pouliquen

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: f2990d20daca81a12e7e84c33eb5398418f7568e https://github.com/OpenAMP/libmetal/commit/f2990d20daca81a12e7e84c33eb53984… Author: Sipke Vriend <sipke(a)direktembedded.com> Date: 2025-05-19 (Mon, 19 May 2025) Changed paths: M doc/Doxyfile.in Log Message: ----------- doxygen: tell doxygen to generate tag file for external linking To allow for external links to doxygen generated content, tell doxygen to build tags, so the tag file can be used for cross referencing doxygen generated data. Signed-off-by: Sipke Vriend <sipke(a)direktembedded.com> Commit: c86f48f19a9c58998123061777da680e14cbafb9 https://github.com/OpenAMP/libmetal/commit/c86f48f19a9c58998123061777da680e… Author: Sipke Vriend <sipke(a)direktembedded.com> Date: 2025-05-19 (Mon, 19 May 2025) Changed paths: M doc/Doxyfile.in Log Message: ----------- doxygen: tell doxygen to generate xml in order to use the sphinx breathe plugin in the OpenAMP/openamp-docs repository we need to enable xml generation Signed-off-by: Sipke Vriend <sipke(a)direktembedded.com> Compare: https://github.com/OpenAMP/libmetal/compare/36f87f9335f5...c86f48f19a9c To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/libmetal/settings/notifications

10 months

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[OpenAMP/open-amp] 1bd84c: doxygen: tell doxygen to generate tag file for ext...

by Arnaud Pouliquen

Branch: refs/heads/main Home: https://github.com/OpenAMP/open-amp Commit: 1bd84cfd8926f88188f4091b47b4fdd3148448bc https://github.com/OpenAMP/open-amp/commit/1bd84cfd8926f88188f4091b47b4fdd3… Author: Sipke Vriend <sipke(a)direktembedded.com> Date: 2025-05-19 (Mon, 19 May 2025) Changed paths: M doc/Doxyfile.in Log Message: ----------- doxygen: tell doxygen to generate tag file for external linking To allow for external links to doxygen generated content, tell doxygen to build tags, so the tag file can be used for cross referencing doxygen generated data. Signed-off-by: Sipke Vriend <sipke(a)direktembedded.com> Commit: 391671ba24840833d882c1a75c5d7307703b1cf1 https://github.com/OpenAMP/open-amp/commit/391671ba24840833d882c1a75c5d7307… Author: Sipke Vriend <sipke(a)direktembedded.com> Date: 2025-05-19 (Mon, 19 May 2025) Changed paths: M doc/Doxyfile.in Log Message: ----------- doxygen: tell doxygen to generate xml in order to use the sphinx breathe plugin in the OpenAMP/openamp-docs repository we need to enable xml generation Signed-off-by: Sipke Vriend <sipke(a)direktembedded.com> Compare: https://github.com/OpenAMP/open-amp/compare/3737f8b18ad2...391671ba2484 To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/open-amp/settings/notifications

10 months

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