- Openamp-rp - lists.openampproject.org

Unique Device Status value to indicate reset request

by Bill Mills

TLDR: virtio-remoteproc device reset To request a device reset (w/ acknowledgement), the driver should val = Status field // read current status field val |= 0x82 // set bits 7 and 1 (FAILED and DRIVER) val &= 0xfe // clear bit 0 (ACKNOWLEDGE) // leave other bits unchanged Status field = val // write the new status field value The driver should then poll the status field waiting for it to be == 0. Note: writing the status field to 0 when it is already non-zero, should continue to work as a device reset but the driver will not know when it is complete. Background: From the virtio spec [1] with extra clarity added by me. Status Field bits: (Spec section 2.1, html [2]) bit 0, 0x01, dec 1 ACKNOWLEDGE bit 1, 0x02, dec 2 DRIVER bit 2, 0x04, dec 4 DRIVER_OK (also used in suspend protocol) bit 3, 0x08, dec 8 FEATURES_OK bit 4, 0x10, dec 16 SUSPEND only used if negotiated bit 5, 0x20, dec 32 (currently unused) bit 6, 0x40, dec 64 DEVICE_NEEDS_RESET bit 7, 0x80, dec 128 FAILED All bits except DEVICE_NEEDS_RESET are set (and sometimes cleared) by the device. DEVICE_NEEDS_RESET is set by the device and should only be cleared by a reset. Logically the driver sets ACKNOWLEDGE, then DRIVER, then DRIVER_OK, then FEATURES_OK. Some of these could be set at the same time but never higher bits before lower bits. Once these bits are set, the driver in not allowed to clear them except by issuing a device reset. The one exception to this is that the DRIVER_OK bit is cleared and set as part of the SUSPEND protocol but only if it has been negotiated. The driver sets the FAILED bit when it has given up on the device. It is valid for FAILED with any of the following settings: 0b1xxx_0000 Fail before ack 0b1xxx_0001 Fail before driver found 0b1xxx_0011 Fail before driver OK 0b1xxx_0111 Fail before features OK 0b1xxx_1111 Fail after features OK And if SUSPEND has been negotiated 0b1xx1_0011 Fail while suspend active before features OK 0b1xx1_1011 Fail while Suspend active after features OK FAILED(0x80) and DRIVER (0x02) active with ACKNOWLEDGE(0x01) cleared is not a value that is possible in the base spec. Therefore we use this setting to request a reset w/ acknowledgement. 0b1xxx_xx10 Reset Request w/ acknowledgement TBD: Does/Should the driver send a notification on Status field change? Does/Should the device send a notification on Status field change? Sending the notice eliminates the need for a time on the other side to poll. Do we already support this? If not, probibly not worth it just for this protocol. Recent virtio-mmio enhancement: The patch in [3] is now in the virtio spec master branch but is not part of any released version yet. The patch adds a new V3 version of virtio-mmio where the driver can issue a non-blocking reset request and poll the status field to know when it is done. So we are not the only ones to notice this issue. However the solution used for virtio-mmio still requires trap and emulate to work and wont work if the Status field in located in normal memory of any type. In the patch the driver still writes 0 to the status field but the device is allowed to return from the MMR write with the status filed non-zero. The driver then waits for the status field to become zero to know when this operation is complete. This solution will not work for us as we use a real memory to store the status field and the driver writing that to 0 will take immediate effect and the driver then polling for zero would succeed immediately. Bill [1] https://docs.oasis-open.org/virtio/virtio/v1.4/virtio-v1.4.html [2] https://docs.oasis-open.org/virtio/virtio/v1.4/virtio-v1.4.html#x1-110001 [3] https://github.com/Linaro/virtio-msg-spec/commit/a1883517ee44cc03d1b621a331… -- Bill Mills Principal Technical Consultant, Linaro +1-240-643-0836 TZ: US Eastern Work Schedule: Tues/Wed/Thur

5 days, 12 hours

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[OpenAMP/openamp-system-reference] 4ca6a0: examples: linux: add 'rpmsg_' prefix to userspace ...

by Tanmay Shah

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: 4ca6a085a7e2a2ebd8e7ae77f9e5997401be4661 https://github.com/OpenAMP/openamp-system-reference/commit/4ca6a085a7e2a2eb… Author: Tanmay Shah <tanmay.shah(a)amd.com> Date: 2026-08-28 (Fri, 28 Aug 2026) Changed paths: M examples/linux/rpmsg-echo-test/Makefile M examples/linux/rpmsg-echo-test/README.md M examples/linux/rpmsg-mat-mul/Makefile M examples/linux/rpmsg-mat-mul/README.md M examples/linux/rpmsg-proxy-app/Makefile M examples/linux/rpmsg-proxy-app/README.md Log Message: ----------- examples: linux: add 'rpmsg_' prefix to userspace app names Current linux userspace app names are vague and do not show the true purpose of the application. Add 'rpmsg_' prefix to the application binary's name. This prefix clearly shows that the respective binary will be used to send/receive rpmsg protocol payload. 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

1 week, 4 days

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[OpenAMP/openamp-system-reference] f612c7: legacy_apps: xlnx: move cmake required version onl...

by Tanmay Shah

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: f612c7d43e1f595ddb588cde0304eb3a90f257d1 https://github.com/OpenAMP/openamp-system-reference/commit/f612c7d43e1f595d… Author: Tanmay Shah <tanmay.shah(a)amd.com> Date: 2026-08-28 (Fri, 28 Aug 2026) Changed paths: M examples/legacy_apps/machine/xlnx/CMakeLists.txt Log Message: ----------- legacy_apps: xlnx: move cmake required version only if built with vitis The project has default cmake required version which is overridden with xlnx specific cmake list file. Use this new required version only if vitis tool is used, otherwise use the default required version. 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

1 week, 4 days

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[OpenAMP/openamp-system-reference] a8a8e4: examples: zephyr: add Versal RPU transport

by ben

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: a8a8e4137b251745f3e9202c47c30659b02429e6 https://github.com/OpenAMP/openamp-system-reference/commit/a8a8e4137b251745… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-28 (Fri, 28 Aug 2026) Changed paths: A examples/zephyr/rpmsg_multi_services/boards/versal_rpu.conf Log Message: ----------- examples: zephyr: add Versal RPU transport Configure the RPMsg multi-services example to use the AMD IPI mailbox on Versal R5. Keep memory and linker placement outside the application so generated platform inputs remain the source of the RPU memory layout. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 6752a76f7f50b040fe79a8fc30c40eaa8d23a249 https://github.com/OpenAMP/openamp-system-reference/commit/6752a76f7f50b040… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-28 (Fri, 28 Aug 2026) Changed paths: M examples/linux/rpmsg-utils/rpmsg_ping.c M examples/zephyr/rpmsg_multi_services/src/main_remote.c Log Message: ----------- examples: rpmsg: fix text response framing The raw and TTY responders transmit one byte beyond their formatted prefix and payload. In the raw path this can expose stale buffer data, and adding the prefix to a maximum-sized received message can exceed the local response buffer. Send exact prefix-plus-payload lengths and validate raw response construction. Increase the Linux utility's local receive buffer and bound text output by the length returned from read(). Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 5a4c92095a9ee018216d953a5204d9b5c879a8e8 https://github.com/OpenAMP/openamp-system-reference/commit/5a4c92095a9ee018… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-28 (Fri, 28 Aug 2026) Changed paths: M examples/zephyr/rpmsg_multi_services/boards/versal2_rpu.conf M examples/zephyr/rpmsg_multi_services/boards/versal_rpu.conf M examples/zephyr/rpmsg_multi_services/boards/versalnet_rpu.conf A examples/zephyr/rpmsg_multi_services/boards/zynqmp_rpu.conf M examples/zephyr/rpmsg_multi_services/sample.yaml Log Message: ----------- examples: zephyr: configure safe RPU output Linux can own the physical UART while loading an RPU application through remoteproc. Disable serial support for the AMD RPU targets and use the RAM console where required so the example does not contend for that UART. Keep immediate logging for Versal Net, enable OpenAMP cache maintenance on Versal2, and retain the executable-memory settings used by the generated R52 memory policies. Represent the supported platforms and tags as YAML sequences so Twister retains every entry and can build all AMD RPU targets. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Compare: https://github.com/OpenAMP/openamp-system-reference/compare/59698990e359...… To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/openamp-system-reference/settings/notifications

1 week, 4 days

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[OpenAMP/libmetal] 17148d: lib: linux: preserve device-open errors

by ben

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: 17148ddb10e555b833084cfdb602d2de3617bd5f https://github.com/OpenAMP/libmetal/commit/17148ddb10e555b833084cfdb602d2de… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: M lib/system/linux/device.c Log Message: ----------- lib: linux: preserve device-open errors The Linux bus open path may try more than one backend driver for a device. When a backend finds the device but fails while opening it, the common open loop currently discards that errno and returns -ENODEV after all drivers have been tried. Keep the first useful backend open error, preferring non-ENODEV failures over a plain miss. This preserves the existing not-found result while letting callers see real failures such as UIO map population errors. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: ec3f4d7c90f38ef0963b18956fd2c4a98b4f0aeb https://github.com/OpenAMP/libmetal/commit/ec3f4d7c90f38ef0963b18956fd2c4a9… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: M lib/system/linux/device.c Log Message: ----------- lib: linux: fix UIO mmap offset handling UIO map offsets identify the usable resource start inside the page-aligned mapping exposed by sysfs. The Linux backend previously exposed and unmapped the adjusted virtual address directly. Keep the raw mmap base and length for close, expose the usable virtual address as raw mapping plus offset, and derive the libmetal physical base and size from the usable portion of the UIO map. Use the sysfs map size as the mmap length. For an unaligned resource, UIO already reports a page-aligned address and a full mmap length, so adding the offset to that length can over-map the resource and fail. Reject offsets outside the system page size, reject offsets beyond the map size, and report overflow before attempting to mmap the region. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 6fa7ee61b57d86bd15a3ca840517cd12cc08819e https://github.com/OpenAMP/libmetal/commit/6fa7ee61b57d86bd15a3ca840517cd12… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: M lib/system/linux/device.c M lib/system/linux/irq.c M lib/system/linux/irq.h Log Message: ----------- lib: linux: clear UIO IRQ bookkeeping on close A UIO-backed device registers its file descriptor with the Linux IRQ controller so interrupt handling can find the owning metal device. Closing the device must clear that association before closing the fd. Add an internal unregister helper that detaches the device pointer after the IRQ consumer has disabled the IRQ. Keep IRQ handler and enable-state teardown owned by the standard IRQ disable and unregister paths. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: f36b09679479ffda6eb4ae173162663e25d1d00b https://github.com/OpenAMP/libmetal/commit/f36b09679479ffda6eb4ae173162663e… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: M lib/system/linux/device.c Log Message: ----------- lib: linux: factor common UIO populate path Split the UIO open flow into two stages. The parent-bus path still opens the platform or PCI sysfs device, binds it to the selected UIO driver, finds the child UIO class device, and records the resolved class and /dev paths. Move the common stage into metal_uio_populate(). That helper waits for the /dev/uioX node, opens it, reads each UIO map, maps the full mmap extent, exposes the usable region after the sysfs offset, and registers IRQ bookkeeping when the UIO fd supports interrupts. Keep close-time cleanup unchanged by storing the raw mmap address and length alongside the adjusted libmetal I/O region. On populate failure, unmap any regions mapped so far and close the UIO fd locally before the generic open path releases parent sysfs and driver override state. Also make local error paths close the temporary UIO child list before returning. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: a39557108e22b4c392b554b05325262a6a9d3617 https://github.com/OpenAMP/libmetal/commit/a39557108e22b4c392b554b05325262a… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: M lib/system/linux/device.c Log Message: ----------- lib: linux: add UIO class-name lookup Add the resolver used by the synthetic uio bus. It scans every /sys/class/uio/uioX/name file, compares the first line against the requested libmetal device name, and rejects duplicate matches because they cannot be opened deterministically. When a unique match is found, fill the same linux_device fields that the parent-bus UIO path fills: cls_path points at the UIO sysfs class directory, dev_path points at /dev/uioX, and the UIO name and device node name are saved for diagnostics and future callers. The class-name open callback then reuses metal_uio_populate(), so UIO class opens and parent-bus UIO opens share mmap setup, IRQ registration, DMA handling, and close-time cleanup. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 02e46d91d3d864b343ba0d03ebaa031f9558707e https://github.com/OpenAMP/libmetal/commit/02e46d91d3d864b343ba0d03ebaa031f… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: M lib/system/linux/device.c Log Message: ----------- lib: linux: register synthetic UIO bus Register a synthetic Linux uio bus so callers can use the existing metal_device_open("uio", name, ...) API shape to open UIO devices by the value exported in /sys/class/uio/uioX/name. This bus is not backed by a sysfs bus directory or a probed kernel driver handle. During Linux bus initialization, register it only when /sys/class/uio exists, and skip the normal sysfs bus and driver probing that platform and PCI devices require. During device open, allow the synthetic uio driver to run its class-name open callback without an sdrv handle. The callback resolves the UIO class device and then uses the shared populate path added earlier, so the new bus preserves the same mmap, IRQ, DMA, and close semantics as existing UIO-backed platform and PCI opens. Also make bus close tolerate the missing sysfs bus handle and copy the requested device name with snprintf() so oversized names fail cleanly. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Compare: https://github.com/OpenAMP/libmetal/compare/43a59cdd505a...02e46d91d3d8 To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/libmetal/settings/notifications

1 week, 6 days

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[OpenAMP/openamp-system-reference] 596989: legacy_apps: zynqmp_r5: remote redundant helper file

by Tanmay Shah

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: 59698990e359164444d543735d87f515e57f03da https://github.com/OpenAMP/openamp-system-reference/commit/59698990e3591644… Author: Tanmay Shah <tanmay.shah(a)amd.com> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: R examples/legacy_apps/machine/xlnx/zynqmp_r5/helper.c Log Message: ----------- legacy_apps: zynqmp_r5: remote redundant helper file All the functionality from this file is moved to libmetal xlnx extension library and this file is not needed anymore. 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

1 week, 6 days

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[OpenAMP/openamp-system-reference] d88c3e: legacy_apps: xlnx: remove duplicate defines

by Tanmay Shah

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: d88c3e7a5dbb2deaa24dfef7a7d111ee74b20ba6 https://github.com/OpenAMP/openamp-system-reference/commit/d88c3e7a5dbb2dea… Author: Shah, Tanmay <tanmay.shah(a)amd.com> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: M examples/legacy_apps/machine/xlnx/zynqmp_r5/platform_info.c M examples/legacy_apps/machine/xlnx/zynqmp_r5/platform_info.h Log Message: ----------- legacy_apps: xlnx: remove duplicate defines For system-device-tree BSP CACHE related defines are already available in the bsp config header file. Hence remove the duplicate defines if SDT is defined in the toolchain file. Signed-off-by: Tanmay Shah <tanmay.shah(a)amd.com> Acked-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

1 week, 6 days

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[OpenAMP/open-amp] 4ae383: CI: print disk freespace at the start and end of e...

by Bill Mills

Branch: refs/heads/main Home: https://github.com/OpenAMP/open-amp Commit: 4ae383d32de3f4c42e71d3da1ec4407f1d35a26b https://github.com/OpenAMP/open-amp/commit/4ae383d32de3f4c42e71d3da1ec4407f… Author: Bill Mills <bill.mills(a)linaro.org> Date: 2026-08-26 (Wed, 26 Aug 2026) Changed paths: M .github/actions/build_ci/entrypoint.sh M .github/workflows/continuous-integration.yml Log Message: ----------- CI: print disk freespace at the start and end of each job Print the freespace so we can monitor how close we are to overflow. Also allow manual trigger for main CI action. Signed-off-by: Bill Mills <bill.mills(a)linaro.org> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/open-amp/settings/notifications

1 week, 6 days

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[OpenAMP/meta-openamp] e90151: layer.conf: branch for scarthgap

by Bill Mills

Branch: refs/heads/master Home: https://github.com/OpenAMP/meta-openamp Commit: e9015153d99d898b1a6aaac98f59673354aa57d2 https://github.com/OpenAMP/meta-openamp/commit/e9015153d99d898b1a6aaac98f59… Author: Mark Hatle <mark.hatle(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M conf/layer.conf Log Message: ----------- layer.conf: branch for scarthgap Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: 6df0251e99f5627aab3919716924e0d109cf9127 https://github.com/OpenAMP/meta-openamp/commit/6df0251e99f5627aab3919716924… Author: Marius Unsel <munsel(a)munsel.de> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M vendor/xilinx/meta-xilinx-standalone-experimental/recipes-openamp/open-amp/open-amp-firmware.bb Log Message: ----------- add usrmerge insane skip rule to R5 firmware example Merge Pull Request #51 from github Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: a491cb961f18f8d18a079c09f016b41baace4177 https://github.com/OpenAMP/meta-openamp/commit/a491cb961f18f8d18a079c09f016… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: R vendor/xilinx/meta-xilinx-standalone-experimental/recipes-openamp/libmetal/libmetal-xlnx.inc R vendor/xilinx/meta-xilinx-standalone-experimental/recipes-openamp/open-amp/open-amp-firmware.bb R vendor/xilinx/meta-xilinx-standalone-experimental/recipes-openamp/open-amp/open-amp-xlnx.inc R vendor/xilinx/meta-xilinx-standalone-experimental/recipes-openamp/open-amp/overlays/openamp-overlay-versal-net.yaml R vendor/xilinx/meta-xilinx-standalone-experimental/recipes-openamp/open-amp/overlays/openamp-overlay-versal.yaml R vendor/xilinx/meta-xilinx-standalone-experimental/recipes-openamp/open-amp/overlays/openamp-overlay-zynqmp.yaml Log Message: ----------- xilinx: remove vendor specific logic Move vendor specific logic to vendor specific layers Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: 8724f4a0d16f2fa422c00bf667772570c89d3438 https://github.com/OpenAMP/meta-openamp/commit/8724f4a0d16f2fa422c00bf66777… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M vendor/xilinx/recipes-openamp/libmetal/libmetal-xlnx.inc Log Message: ----------- libmetal-xlnx.inc: update versal-2ve-2vm symbols used to latest Ensure that latest relevant symbols are used to configure the demo. This is used to ensure correct IPI values are used. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: c58aa080aa74b02c7b453f91fec67340fa4e2d8a https://github.com/OpenAMP/meta-openamp/commit/c58aa080aa74b02c7b453f91fec6… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M vendor/xilinx/recipes-kernel/linux/linux-%.bbappend Log Message: ----------- vendor/xilinx: remove remoteproc-zynqmp As the old driver zynqmp_r5_remoteproc is not used remove it. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: f20f22cea1138f7ca7347e4b9470a31e714a0d49 https://github.com/OpenAMP/meta-openamp/commit/f20f22cea1138f7ca7347e4b9470… Author: Vivek Ghetiya <vivek.ghetiya(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: A recipes-openamp/rpmsg-examples/files/zephyr_rpmsg_test A recipes-openamp/rpmsg-examples/zephyr-rpmsg-test_1.0.bb Log Message: ----------- rpmsg-examples: Add zephyr-rpmsg-test utility Add automated test script and corresponding recipe to validate Zephyr-based OpenAMP RPMsg TTY communication from Linux. This provides simplified test execution similar to the existing FreeRTOS echo_test utility. Signed-off-by: Vivek Ghetiya <vivek.ghetiya(a)amd.com> Reviewed-by: Ben Levinsky <ben.levinsky(a)amd.com> Message-Id: <20260213115243.3540267-3-vivek.ghetiya(a)amd.com> Signed-off-by: Sandeep Gundlupet Raju <sandeep.gundlupet-raju(a)amd.com> Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: a0e3ef43891bad7f8664b37792cd43a399eeaa44 https://github.com/OpenAMP/meta-openamp/commit/a0e3ef43891bad7f8664b37792cd… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M vendor/xilinx/recipes-kernel/linux/linux-%.bbappend Log Message: ----------- vendor/xilinx: Add versal-net SoC Versal was recently split between versal and versal-net, add versal-net as supported. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: 7865d16f1e42c419d67b7ca61281c35f7639b9ee https://github.com/OpenAMP/meta-openamp/commit/7865d16f1e42c419d67b7ca61281… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M vendor/xilinx/recipes-kernel/linux/linux-%.bbappend Log Message: ----------- vendor/xilinx: Add versal-2ve-2vm SoC Versal was recently split between versal and versal-2ve-2vm, add versal-2ve-2vm as supported. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: 1a500238b447b6865b8fcbac49d6cd80a3d694a0 https://github.com/OpenAMP/meta-openamp/commit/1a500238b447b6865b8fcbac49d6… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M vendor/xilinx/layer.inc Log Message: ----------- vendor/xilinx: meta-xilinx-standalone-experimental renamed to meta-xilinx-standalone-sdt Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: 7470379900dbcbb1aa2783062265c1384c3a6c4a https://github.com/OpenAMP/meta-openamp/commit/7470379900dbcbb1aa2783062265… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M vendor/xilinx/recipes-openamp/open-amp/open-amp-xlnx.inc Log Message: ----------- vendor/xilinx open-amp-xlnx: Builds are now based off of repo and only library OpenAMP library is built with only library as target. Demos are in separate recipe. This means the .inc file only needs minimal flags to be used. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: 6e342a4455100116bd1e4129eb341709d7e38e03 https://github.com/OpenAMP/meta-openamp/commit/6e342a4455100116bd1e4129eb34… Author: Mark Hatle <mark.hatle(a)amd.com> Date: 2026-06-02 (Tue, 02 Jun 2026) Changed paths: M conf/layer.conf Log Message: ----------- layer.conf: Update branch for wrynose Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: aae69d1bf473d23e08b89d10bb8cc71cab643046 https://github.com/OpenAMP/meta-openamp/commit/aae69d1bf473d23e08b89d10bb8c… Author: Mark Hatle <mark.hatle(a)amd.com> Date: 2026-06-06 (Sat, 06 Jun 2026) Changed paths: M recipes-openamp/images/openamp-image-minimal.bb M recipes-openamp/libmetal/libmetal.inc M recipes-openamp/open-amp/open-amp.inc M recipes-openamp/rpmsg-examples/rpmsg-echo-test_1.0.bb M recipes-openamp/rpmsg-examples/rpmsg-example.inc M recipes-openamp/rpmsg-examples/rpmsg-mat-mul_1.0.bb M recipes-openamp/rpmsg-examples/rpmsg-proxy-app_1.0.bb M recipes-openamp/rpmsg-examples/rpmsg-utils_1.0.bb M recipes-openamp/rpmsg-examples/zephyr-rpmsg-test_1.0.bb Log Message: ----------- various: Update variables to meet Wrynose requirements The system now requires a space between a variable, operator and value. WORKDIR is no longer allowed in S. The default value is now correct for most git repositories. The default git repository source location is ${UNPACKDIR}/${BP}. Adjust as necessary components that build in subdirectories. Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: 80e38025dea10b0a6e38b98c7c3f925c96a2c931 https://github.com/OpenAMP/meta-openamp/commit/80e38025dea10b0a6e38b98c7c3f… Author: Mark Hatle <mark.hatle(a)amd.com> Date: 2026-06-06 (Sat, 06 Jun 2026) Changed paths: M recipes-openamp/libmetal/libmetal.inc M recipes-openamp/open-amp/open-amp.inc Log Message: ----------- libmetal/open-amp: Fix CMake minimum version Workaround the following issue: | CMake Error at CMakeLists.txt:1 (cmake_minimum_required): | Compatibility with CMake < 3.5 has been removed from CMake. | | Update the VERSION argument <min> value. Or, use the <min>...<max> syntax | to tell CMake that the project requires at least <min> but has been updated | to work with policies introduced by <max> or earlier. | | Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway. Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: 476a0489ea40d9c708b37bd6008301a1e3268946 https://github.com/OpenAMP/meta-openamp/commit/476a0489ea40d9c708b37bd60083… Author: Mark Hatle <mark.hatle(a)amd.com> Date: 2026-06-06 (Sat, 06 Jun 2026) Changed paths: M recipes-openamp/libmetal/libmetal.inc Log Message: ----------- libmetal: Workaround for atomic setting Workaround for: libmetal-v2024.05+git/test/system/linux/atomic.c:31:30: error: implicit declaration of function 'ATOMIC_VAR_INIT'; did you mean 'ATOMIC_FLAG_INIT'? [-Wimplicit-function-declaration] | 31 | atomic_int counter = ATOMIC_VAR_INIT(0); | | ^~~~~~~~~~~~~~~ | | ATOMIC_FLAG_INIT ATOMIC_VAR_INIT is obsolete now and no longer is C23 or newer. This wouldaround should be removed once the source is resolved. Signed-off-by: Mark Hatle <mark.hatle(a)amd.com> Commit: c3db487fc8fd5996e52da437a52dc4e2ea76312b https://github.com/OpenAMP/meta-openamp/commit/c3db487fc8fd5996e52da437a52d… Author: Bill Mills <bill.mills(a)linaro.org> Date: 2026-06-06 (Sat, 06 Jun 2026) Changed paths: M conf/layer.conf Log Message: ----------- layer.conf: Update for 2026.04 release * Update codenames for current release status * Explain LTS policy better * Delete old Xilinx specific langdale support Signed-off-by: Bill Mills <bill.mills(a)linaro.org> Commit: 4dda04a45cdf609a4ecbb862a8835d4f79fa2606 https://github.com/OpenAMP/meta-openamp/commit/4dda04a45cdf609a4ecbb862a883… Author: Bill Mills <bill.mills(a)linaro.org> Date: 2026-06-09 (Tue, 09 Jun 2026) Changed paths: A classes/openamp-unpack-compat.bbclass M recipes-openamp/libmetal/libmetal.inc M recipes-openamp/open-amp/open-amp.inc M recipes-openamp/rpmsg-examples/rpmsg-example.inc Log Message: ----------- Re-add support for scarthgap The baseline is compatible with wrynose (YP-6.0) and later. Now re-add support for scarthgap (YP-5.0). In each recipe: * add destsuffix=${BP} to SRC_URI * add S = {$UNPACKDIR}/${BP} * inherit openamp-unpack-compat The first two are the defaults in wrynose but be explicit for scarthgap. The new class defines UNPACKDIR for scarthgap but leaves it undefined for wrynose and later as they require. (It is defined as a weak assignment that will be active later in the processing.) This is a separate commit so it can be reverted for release specific branches and when scrathgap goes EOL. Signed-off-by: Bill Mills <bill.mills(a)linaro.org> Compare: https://github.com/OpenAMP/meta-openamp/compare/d03894bbd0d0...4dda04a45cdf To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/meta-openamp/settings/notifications

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[OpenAMP/openamp-system-reference] e64527: examples: libmetal: amd_rpu: channel fields are us...

by ben

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: e64527beaaa3ab1a779fd597eecaecfb96e097cf https://github.com/OpenAMP/openamp-system-reference/commit/e64527beaaa3ab1a… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-07-31 (Fri, 31 Jul 2026) Changed paths: M examples/libmetal/machine/remote/amd_rpu/platform_init.c Log Message: ----------- examples: libmetal: amd_rpu: channel fields are used when possible Use members of channel struct when able as opposed to locals Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 905fbd6acc8d3853f6455a98122cd425c0db9a88 https://github.com/OpenAMP/openamp-system-reference/commit/905fbd6acc8d3853… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-07-31 (Fri, 31 Jul 2026) Changed paths: M examples/libmetal/demos/irq_shmem_demo/remote/irq_shmem_demo.c M examples/libmetal/machine/remote/amd_rpu/platform_init.c Log Message: ----------- examples: libmetal: amd_rpu: order libraries alphabetically Cosmetic change for remote side - have libraries ordered alphabetically Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 707384070dcf23eee4ddeeac43c7732606c101c6 https://github.com/OpenAMP/openamp-system-reference/commit/707384070dcf23ee… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-07-31 (Fri, 31 Jul 2026) Changed paths: M examples/libmetal/demos/irq_shmem_demo/remote/irq_shmem_demo.c M examples/libmetal/machine/remote/amd_rpu/platform_init.c M examples/libmetal/machine/remote/amd_rpu/system/freertos/amp_demo_os.h M examples/libmetal/machine/remote/amd_rpu/system/generic/amp_demo_os.h Log Message: ----------- examples: libmetal: remote: accounts for non-contiguous area As the host application now uses 3 shared mem areas that can be non-contiguous ensure that remote side accounts for this too. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 17e14cf4f639c4acef38982956056680a960dbdc https://github.com/OpenAMP/openamp-system-reference/commit/17e14cf4f639c4ac… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-07-31 (Fri, 31 Jul 2026) Changed paths: M examples/libmetal/machine/remote/amd_rpu/common.h M examples/libmetal/machine/remote/amd_rpu/platform_init.c Log Message: ----------- examples: libmetal: amd_rpu: versal-net: set first 2G MPU region Set first 2G MPU Region as same flags as libmetal demo to ensure MPU regions dont get incorrectly created by BSP This will go away once overlapping region adjustment is fixed in BSP Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: b7bef2a9d4fa5e50dd9ef3324429018acb63f5cd https://github.com/OpenAMP/openamp-system-reference/commit/b7bef2a9d4fa5e50… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-07-31 (Fri, 31 Jul 2026) Changed paths: M examples/libmetal/machine/remote/amd_rpu/platform_init.c Log Message: ----------- examples: libmetal: amd_rpu: fix memset call in cleanup Fix bug in call to memset(), pass struct channel_s *, not struct channel_s ** Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 86f3978c54651c57163f1e7f480ec3d6d4a3dd04 https://github.com/OpenAMP/openamp-system-reference/commit/86f3978c54651c57… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-07-31 (Fri, 31 Jul 2026) Changed paths: M examples/libmetal/demos/irq_shmem_demo/CMakeLists.txt A examples/libmetal/demos/irq_shmem_demo/common/irq_shmem_demo.h M examples/libmetal/demos/irq_shmem_demo/host/irq_shmem_demo.c M examples/libmetal/demos/irq_shmem_demo/remote/irq_shmem_demo.c M examples/libmetal/machine/host/amd_linux_userspace/common.h M examples/libmetal/machine/host/amd_linux_userspace/platform_init.c M examples/libmetal/machine/remote/amd_rpu/CMakeLists.txt M examples/libmetal/machine/remote/amd_rpu/system/freertos/amp_demo_os.h M examples/libmetal/machine/remote/amd_rpu/system/generic/amp_demo_os.h Log Message: ----------- examples: libmetal: irq_shmem_demo: move channel state to common header Move the shared irq_shmem_demo channel definition into a demo-level header and keep platform-specific state behind a machine_ctx pointer. This removes the duplicated channel_s definitions from the host and remote OS headers and makes the separation between common transport state and platform-private state clearer. Also export the demo common include directory through CMake so the shared header can be included directly as irq_shmem_demo.h instead of using deep relative include paths. Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Commit: 7d646280409d0abf92c05b005e164f9c3027c459 https://github.com/OpenAMP/openamp-system-reference/commit/7d646280409d0abf… Author: Ben Levinsky <ben.levinsky(a)amd.com> Date: 2026-07-31 (Fri, 31 Jul 2026) Changed paths: M examples/libmetal/machine/host/amd_linux_userspace/platform_init.c Log Message: ----------- examples: libmetal: amd_linux_userspace: fix cleanup memset call Fix bug in call to memset(), pass struct channel_s *, not struct channel_s **. Also remove the duplicate metal_irq_unregister() call from platform_cleanup(). Signed-off-by: Ben Levinsky <ben.levinsky(a)amd.com> Compare: https://github.com/OpenAMP/openamp-system-reference/compare/2aff939b5303...… To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/openamp-system-reference/settings/notifications

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