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RPMsg in U-Boot Proof of concept Patch v1

by Shah, Tanmay

Hello All, RPMsg in U-Boot is under development. First proof of concept patch v1 was sent to upstream mailing list as RFC patch here: http://patchwork.ozlabs.org/project/uboot/list/?series=365 Here is the video of demo of RPMsg framework introduced in above patch series: https://www.youtube.com/watch?v=PxGNR_FYGt8 This document explains patch series and motivation to introduce RPMsg in U-Boot and future work that needs to be done: https://drive.google.com/file/d/1Bjtzj58klMPVuWEtRK89oyem7_Hdajn8/view?usp=… This patch series is very basic implementation of virtio based RPMsg framework referenced from the Linux kernel. For now, U-Boot is communicating with remote processor over fix hard-coded endpoint. More advance features such as name-service, multiple endpoint support etc.. will be added in coming revisions of this patch series. Meanwhile, please feel free to review existing work and provide review comments and any other suggestions. Thanks, Tanmay Hello All, RPMsg in U-Boot is under development. First proof of concept patch v1 was sent to upstream mailing list as RFC patch here: [1]http://patchwork.ozlabs.org/project/uboot/list/?series=365 Here is the video of demo of RPMsg framework introduced in above patch series: [2]https://www.youtube.com/watch?v=PxGNR_FYGt8 This document explains patch series and motivation to introduce RPMsg in U-Boot and future work that needs to be done: [3]https://drive.google.com/file/d/1Bjtzj58klMPVuWEtRK89oyem7_Hdajn8/vi ew?usp=sharing This patch series is very basic implementation of virtio based RPMsg framework referenced from the Linux kernel. For now, U-Boot is communicating with remote processor over fix hard-coded endpoint. More advance features such as name-service, multiple endpoint support etc.. will be added in coming revisions of this patch series. Meanwhile, please feel free to review existing work and provide review comments and any other suggestions. Thanks, Tanmay References 1. http://patchwork.ozlabs.org/project/uboot/list/?series=365 2. https://www.youtube.com/watch?v=PxGNR_FYGt8 3. https://drive.google.com/file/d/1Bjtzj58klMPVuWEtRK89oyem7_Hdajn8/view?usp=…

1 year, 8 months

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[OpenAMP/libmetal] 548f64: Export each of the memory_order enumerators

by Arnaud Pouliquen

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: 548f6428557acaa1ac218ab74b1e04b16f183f1c https://github.com/OpenAMP/libmetal/commit/548f6428557acaa1ac218ab74b1e04b1… Author: Sergei Korneichuk <sergei.korneichuk(a)amd.com> Date: 2023-08-21 (Mon, 21 Aug 2023) Changed paths: M lib/atomic.h Log Message: ----------- Export each of the memory_order enumerators The lib/atomic.h exports memory_order enum into the global namespace, but none of its enumerators. According to Section 7.3.3 "The using declaration" of the C++ standard: "specifying an enumeration name in a using-declaration does not declare its enumerators in the using-declaration's declarative region." See also: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0943r1.html Signed-off-by: Sergei Korneichuk <sergei.korneichuk(a)amd.com>

1 year, 8 months

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[OpenAMP/openamp-system-reference] c2c895: examples: dual_qemu_ivshmem: add RPMsg over IVSHME...

by Felipe Neves

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: c2c89575efbfa3428fa825dc0e06957fc7cce409 https://github.com/OpenAMP/openamp-system-reference/commit/c2c89575efbfa342… Author: Felipe Neves <felipe.neves(a)linaro.org> Date: 2023-08-17 (Thu, 17 Aug 2023) Changed paths: M examples/zephyr/README.md A examples/zephyr/dual_qemu_ivshmem/.gitignore A examples/zephyr/dual_qemu_ivshmem/README.rst A examples/zephyr/dual_qemu_ivshmem/host/CMakeLists.txt A examples/zephyr/dual_qemu_ivshmem/host/app.overlay A examples/zephyr/dual_qemu_ivshmem/host/boards/pcie_ivshmem.dtsi A examples/zephyr/dual_qemu_ivshmem/host/boards/qemu_cortex_a53.conf A examples/zephyr/dual_qemu_ivshmem/host/prj.conf A examples/zephyr/dual_qemu_ivshmem/host/src/main.c A examples/zephyr/dual_qemu_ivshmem/remote/CMakeLists.txt A examples/zephyr/dual_qemu_ivshmem/remote/app.overlay A examples/zephyr/dual_qemu_ivshmem/remote/boards/pcie_ivshmem.dtsi A examples/zephyr/dual_qemu_ivshmem/remote/boards/qemu_cortex_a53.conf A examples/zephyr/dual_qemu_ivshmem/remote/prj.conf A examples/zephyr/dual_qemu_ivshmem/remote/src/main.c A examples/zephyr/dual_qemu_ivshmem/rpmsg_ivshmem_backend/rpmsg_ivshmem_backend.c A examples/zephyr/dual_qemu_ivshmem/rpmsg_ivshmem_backend/rpmsg_ivshmem_backend.h Log Message: ----------- examples: dual_qemu_ivshmem: add RPMsg over IVSHMEM sample code. The additions include a backend to glue the Zephyr IVSHMEM device driver into the openAMP code making it usable to send data between two QEMU instances using the RPMsg protocol. Also a custom shell command in the host side application is provided to send string messages for a number of times. Signed-off-by: Felipe Neves <felipe.neves(a)linaro.org> Commit: 9c752508112513cf44892a45fdfc2007d37ad591 https://github.com/OpenAMP/openamp-system-reference/commit/9c752508112513cf… Author: Felipe Neves <felipe.neves(a)linaro.org> Date: 2023-08-17 (Thu, 17 Aug 2023) Changed paths: M west.yml Log Message: ----------- west: update zephyr revsion to v3.4-branch This revision contains the IVSHMEM infrastructure needed to make the RPMsg over it to work. Signed-off-by: Felipe Neves <felipe.neves(a)linaro.org> Compare: https://github.com/OpenAMP/openamp-system-reference/compare/6a612fae306c...…

1 year, 8 months

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[OpenAMP/open-amp] e63d07: virtio: virtio-mmio framework

by Arnaud Pouliquen

Branch: refs/heads/main Home: https://github.com/OpenAMP/open-amp Commit: e63d07d10577b06c5b3fc8e1c20ede74779d3132 https://github.com/OpenAMP/open-amp/commit/e63d07d10577b06c5b3fc8e1c20ede74… Author: Dan Milea <dan.milea(a)windriver.com> Date: 2023-08-17 (Thu, 17 Aug 2023) Changed paths: M cmake/options.cmake M lib/CMakeLists.txt M lib/include/openamp/rpmsg_virtio.h M lib/include/openamp/virtio.h A lib/include/openamp/virtio_mmio.h M lib/include/openamp/virtqueue.h M lib/virtio/virtio.c A lib/virtio_mmio/CMakeLists.txt A lib/virtio_mmio/virtio_mmio_drv.c Log Message: ----------- virtio: virtio-mmio framework VIRTIO MMIO transport for OpenAMP. Signed-off-by: Dan Milea <dan.milea(a)windriver.com>

1 year, 8 months

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[OpenAMP/libmetal] f2144b: lib: refactor alloc.h to not need forward declaration

by Andrew F. Davis

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: f2144b12ae6394712288e0c4a89da381b9830766 https://github.com/OpenAMP/libmetal/commit/f2144b12ae6394712288e0c4a89da381… Author: Andrew Davis <afd(a)ti.com> Date: 2023-08-16 (Wed, 16 Aug 2023) Changed paths: M lib/alloc.h M lib/system/freertos/alloc.h M lib/system/generic/alloc.h M lib/system/linux/alloc.h M lib/system/nuttx/alloc.h M lib/system/zephyr/alloc.h Log Message: ----------- lib: refactor alloc.h to not need forward declaration This should have no functional change, but makes this header consistent with how the other headers are organized. Signed-off-by: Andrew Davis <afd(a)ti.com>

1 year, 8 months

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[RFC PATCH 00/10] Add RPMsg framework

by Tanmay Shah

Remote Processor Messaging (RPMsg) framework is used to communicate with remote processor. RPMsg is a virtio-based messaging bus that allows U-Boot drivers to communicate with remote processors available on the system. This patch also introduces new virtio transport layer driver. To keep things minimal for now hard-coded endpoint is used in U-Boot to communicate with remote processor using RPMsg protocol. This will be modified to use multiple endpoints in future. U-Boot can't receive interrupts from remote processor as per design. Hence, user has to know when the data will be available from remote processor and call rpmsg_recv accordingly. Mostly it will be called to receive response of query done using rpmsg_send. Some code is already available to allocate memory for RPMsg however, that framework is mostly TI platform specific and isn't used by any other platforms. This series makes sure it does not break previous code for other platforms. If platforms wants to use this new framework it is expected to set "support_rpmsg_virtio" flag in relative remoteproc device's platform data. Also the framework introduced by this series is ported from the Linux kernel so other platforms which already support RPMsg in the Linux kernel can easily use this framework in U-Boot as well. --- Tanmay Shah (10): remoteproc: move resource table definition firmware: zynqmp: move zynqmp_pm_request_node API remoteproc: add remoteproc virtio transport driver drivers: add RPMsg framework rpmsg: add sample client driver cmd: add rpmsg framework commands remoteproc: add attach/detach commands remoteproc: add zynqmp driver configs: zynqmp: enable remoteproc and rpmsg configs: sandbox: enable rpmsg MAINTAINERS | 15 + arch/sandbox/dts/test.dts | 8 + cmd/Kconfig | 6 + cmd/Makefile | 1 + cmd/remoteproc.c | 14 +- cmd/rpmsg.c | 61 +++ configs/sandbox_defconfig | 4 + configs/xilinx_zynqmp_virt_defconfig | 6 + drivers/Kconfig | 2 + drivers/Makefile | 1 + drivers/firmware/firmware-zynqmp.c | 27 ++ drivers/power/domain/zynqmp-power-domain.c | 7 - drivers/remoteproc/Kconfig | 20 + drivers/remoteproc/Makefile | 2 + drivers/remoteproc/rproc-elf-loader.c | 33 -- drivers/remoteproc/rproc-uclass.c | 125 +++++- drivers/remoteproc/rproc_virtio.c | 422 +++++++++++++++++++++ drivers/remoteproc/xlnx_rproc.c | 411 ++++++++++++++++++++ drivers/rpmsg/Kconfig | 39 ++ drivers/rpmsg/Makefile | 13 + drivers/rpmsg/rpmsg-uclass.c | 156 ++++++++ drivers/rpmsg/rpmsg_internal.h | 52 +++ drivers/rpmsg/rpmsg_sample_client.c | 63 +++ drivers/rpmsg/sandbox_test_rpmsg.c | 88 +++++ drivers/rpmsg/virtio_rpmsg_bus.c | 384 +++++++++++++++++++ drivers/virtio/virtio-uclass.c | 1 + drivers/virtio/virtio_ring.c | 16 + include/dm/uclass-id.h | 1 + include/remoteproc.h | 130 ++++++- include/rpmsg.h | 145 +++++++ include/rproc_virtio.h | 33 ++ include/virtio.h | 7 +- include/virtio_ring.h | 32 ++ include/zynqmp_firmware.h | 30 +- test/dm/Makefile | 1 + test/dm/rpmsg.c | 41 ++ 36 files changed, 2321 insertions(+), 76 deletions(-) create mode 100644 cmd/rpmsg.c create mode 100644 drivers/remoteproc/rproc_virtio.c create mode 100644 drivers/remoteproc/xlnx_rproc.c create mode 100644 drivers/rpmsg/Kconfig create mode 100644 drivers/rpmsg/Makefile create mode 100644 drivers/rpmsg/rpmsg-uclass.c create mode 100644 drivers/rpmsg/rpmsg_internal.h create mode 100644 drivers/rpmsg/rpmsg_sample_client.c create mode 100644 drivers/rpmsg/sandbox_test_rpmsg.c create mode 100644 drivers/rpmsg/virtio_rpmsg_bus.c create mode 100644 include/rpmsg.h create mode 100644 include/rproc_virtio.h create mode 100644 test/dm/rpmsg.c base-commit: 94e7cb181ad6bd25d36a11c58e0df64e9f815888 -- 2.25.1

1 year, 9 months

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[OpenAMP/openamp-system-reference] 6a612f: examples: Linux: Fix rpmsg-utils README

by Arnaud Pouliquen

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: 6a612fae306c3204a64de16e7eb3797727fe3d2e https://github.com/OpenAMP/openamp-system-reference/commit/6a612fae306c3204… Author: Arnaud Pouliquen <arnaud.pouliquen(a)foss.st.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/rpmsg-utils/README Log Message: ----------- examples: Linux: Fix rpmsg-utils README Fix typo in the documentation. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen(a)foss.st.com>

1 year, 9 months

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[OpenAMP/openamp-system-reference] 56b345: examples: linux: Factor out app_rpmsg_create_ept i...

by Andrew F. Davis

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: 56b3456aca4f0da33df426e191ff6b0723e0033d https://github.com/OpenAMP/openamp-system-reference/commit/56b3456aca4f0da3… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: A examples/linux/common/common.c A examples/linux/common/common.h M examples/linux/rpmsg-echo-test/Makefile M examples/linux/rpmsg-echo-test/echo_test.c M examples/linux/rpmsg-mat-mul/Makefile M examples/linux/rpmsg-mat-mul/mat_mul_demo.c M examples/linux/rpmsg-proxy-app/Makefile M examples/linux/rpmsg-proxy-app/proxy_app.c Log Message: ----------- examples: linux: Factor out app_rpmsg_create_ept into common file Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: 811b152988d06352e9fa37667d2d8c1ec8bb7b6a https://github.com/OpenAMP/openamp-system-reference/commit/811b152988d06352… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/common/common.c M examples/linux/common/common.h M examples/linux/rpmsg-echo-test/echo_test.c M examples/linux/rpmsg-mat-mul/mat_mul_demo.c M examples/linux/rpmsg-proxy-app/proxy_app.c Log Message: ----------- examples: linux: Factor out get_rpmsg_ept_dev_name into common file Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: 03733bd4a3effe811397c891dc8709c4d3988c6e https://github.com/OpenAMP/openamp-system-reference/commit/03733bd4a3effe81… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/common/common.c M examples/linux/common/common.h M examples/linux/rpmsg-echo-test/echo_test.c M examples/linux/rpmsg-mat-mul/mat_mul_demo.c M examples/linux/rpmsg-proxy-app/proxy_app.c Log Message: ----------- examples: linux: Factor out bind_rpmsg_chrdev into common file Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: e801fa0607ca7989f29226b3da7382bc19369801 https://github.com/OpenAMP/openamp-system-reference/commit/e801fa0607ca7989… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/common/common.c M examples/linux/common/common.h M examples/linux/rpmsg-echo-test/echo_test.c M examples/linux/rpmsg-mat-mul/mat_mul_demo.c M examples/linux/rpmsg-proxy-app/proxy_app.c Log Message: ----------- examples: linux: Factor out get_rpmsg_chrdev_fd into common file Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: 0ec83bfd5b3008b2713ce5a7b2f33fab26c6b5c8 https://github.com/OpenAMP/openamp-system-reference/commit/0ec83bfd5b3008b2… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/common/common.c M examples/linux/common/common.h M examples/linux/rpmsg-echo-test/echo_test.c M examples/linux/rpmsg-mat-mul/mat_mul_demo.c M examples/linux/rpmsg-proxy-app/proxy_app.c Log Message: ----------- examples: linux: Factor out lookup_channel into common file Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: 3b2a0ebf7ef6598cb193b01f3d5c585f454fe4af https://github.com/OpenAMP/openamp-system-reference/commit/3b2a0ebf7ef6598c… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/rpmsg-mat-mul/mat_mul_demo.c Log Message: ----------- examples: rpmsg-mat-mul: Cleanup matrix printout Make matrix_print() into a common function and use it for both printing the input and output matrices. Also add 3 wide padding so the output looks more like a table when the numbers are not all the same length. Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: 7615f43e710cbdb3bbc6acf25aaed35f3328629b https://github.com/OpenAMP/openamp-system-reference/commit/7615f43e710cbdb3… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/rpmsg-echo-test/echo_test.c M examples/linux/rpmsg-mat-mul/mat_mul_demo.c M examples/linux/rpmsg-proxy-app/proxy_app.c Log Message: ----------- examples: linux: Remove uses of global variables Usually considered bad practice and the code is more readable without. Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: 2dadb557f9b1db6b9bd4b4fe97fef0d57a0e6734 https://github.com/OpenAMP/openamp-system-reference/commit/2dadb557f9b1db6b… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/rpmsg-mat-mul/mat_mul_demo.c Log Message: ----------- examples: rpmsg-mat-mul: Only send 32bit shutdown message Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: 2c5d2064e45faf7e3a542d1232593beec40ff940 https://github.com/OpenAMP/openamp-system-reference/commit/2c5d2064e45faf7e… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/rpmsg-mat-mul/mat_mul_demo.c Log Message: ----------- examples: rpmsg-mat-mul: Cleanup printouts and remove debug statements Signed-off-by: Andrew Davis <afd(a)ti.com> Commit: db1f74a00c63d25b676d2874d28457c464408b9b https://github.com/OpenAMP/openamp-system-reference/commit/db1f74a00c63d25b… Author: Andrew Davis <afd(a)ti.com> Date: 2023-07-21 (Fri, 21 Jul 2023) Changed paths: M examples/linux/common/common.c Log Message: ----------- examples: linux: Close file on error in bind_rpmsg_chrdev The file should be closed when returning from this function in the error path. Fix this here. Signed-off-by: Andrew Davis <afd(a)ti.com> Compare: https://github.com/OpenAMP/openamp-system-reference/compare/7f1fb3b84edc...…

1 year, 9 months

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[OpenAMP/libmetal] 6fb9f4: Add reference count to metal_common_state

by Xiang Xiao

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: 6fb9f4565fdc42fcbde94ea5b36b59d1f0562dc8 https://github.com/OpenAMP/libmetal/commit/6fb9f4565fdc42fcbde94ea5b36b59d1… Author: Xiang Xiao <xiaoxiang(a)xiaomi.com> Date: 2023-07-19 (Wed, 19 Jul 2023) Changed paths: M lib/init.c M lib/sys.h Log Message: ----------- Add reference count to metal_common_state to allow to invoke metal_init and metal_finish multiple times Signed-off-by: Xiang Xiao <xiaoxiang(a)xiaomi.com>

1 year, 9 months

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[OpenAMP/open-amp] a2456e: remoteproc: do cache invalidation before reading r...

by Iulia Prodan

Branch: refs/heads/main Home: https://github.com/OpenAMP/open-amp Commit: a2456e61ee5b7c55eb3901bdcdd836b7e0f83bbc https://github.com/OpenAMP/open-amp/commit/a2456e61ee5b7c55eb3901bdcdd836b7… Author: Iuliana Prodan <iuliana.prodan(a)nxp.com> Date: 2023-07-17 (Mon, 17 Jul 2023) Changed paths: M cmake/options.cmake M lib/include/openamp/remoteproc_virtio.h M lib/remoteproc/remoteproc_virtio.c Log Message: ----------- remoteproc: do cache invalidation before reading rsc_table info Do a cache invalidation before reading the resource table's info since this ca be in a cacheable region. Make this optional, based on VIRTIO_CACHED_RSC_TABLE. Signed-off-by: Iuliana Prodan <iuliana.prodan(a)nxp.com> Commit: 5891cb4b2e813d1c9d10def998952b062304e43f https://github.com/OpenAMP/open-amp/commit/5891cb4b2e813d1c9d10def998952b06… Author: Iuliana Prodan <iuliana.prodan(a)nxp.com> Date: 2023-07-17 (Mon, 17 Jul 2023) Changed paths: M README.md Log Message: ----------- README: add new cache option for resource table Add info for WITH_DCACHE_RSC_TABLE option. Signed-off-by: Iuliana Prodan <iuliana.prodan(a)nxp.com> Compare: https://github.com/OpenAMP/open-amp/compare/7f906105a9ff...5891cb4b2e81

1 year, 9 months

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