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NOTE: OpenAMP rpmsg meeting today one hour later than normal for North America

by Bill Mills

All, The rpmsg meeting is tied to the UK timezone. The UK has NOT yet moved to daylight savings and North America has moved. So today's meeting will appear one hour later than normal to people in the US & Canada. The UK will move to daylight savings time March 31 so this different time is for this weeks meeting only. For anyone NOT moving to daylight savings time, next meeting will be the first meeting at the new "summer" time that will persist until the fall. (We all agree this is stupid yes?) Thank you, Bill -- Bill Mills Principal Technical Consultant, Linaro +1-240-643-0836 TZ: US Eastern Work Schedule: Tues/Wed/Thur

1 month, 1 week

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OpenAMP release 2025.04: code freeze on April 18th

by Arnaud POULIQUEN

Hello, The v2025.04 release of the OpenAMP project repositories is scheduled for the end of next month. Please note that the feature freeze will take effect on April 18th. After this date, only bug fixes will be accepted until the release. To ensure sufficient time for the review process, please submit your pull requests at least two weeks before the feature freeze date. Thanks and regards, Arnaud Pouliquen

1 month, 1 week

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[OpenAMP/openamp-system-reference] 9df0e6: docs: update the readthedocs integration for PRs i...

by Bill Mills

Branch: refs/heads/main Home: https://github.com/OpenAMP/openamp-system-reference Commit: 9df0e6b23605dd2d0584870608c93da8ef2e3d79 https://github.com/OpenAMP/openamp-system-reference/commit/9df0e6b23605dd2d… Author: Bill Mills <bill.mills(a)linaro.org> Date: 2025-03-06 (Thu, 06 Mar 2025) Changed paths: A .readthedocs-conf.py M .readthedocs.yaml Log Message: ----------- docs: update the readthedocs integration for PRs in this repo Upstream Read The Docs has tightened up the schema checking and this broke what we were doing for PRs. A good number of things were tried but the best compromise is to: * supply a dummy sphinx config file in this repo * as this repo does not have a doc/ dir we put the file in the root * override the default build command to use the openamp-docs dir Also: * add more documentation about what is going on * lock to html only format. PRs only do html anyway but make sure Signed-off-by: Bill Mills <bill.mills(a)linaro.org> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/openamp-system-reference/settings/notifications

1 month, 3 weeks

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[OpenAMP/libmetal] 9a2191: cmake: update cmake minimum support to 3.16

by Arnaud Pouliquen

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: 9a21915a5f8f685a9d77672e3817a923d3de8e1f https://github.com/OpenAMP/libmetal/commit/9a21915a5f8f685a9d77672e3817a923… Author: Arnaud Pouliquen <arnaud.pouliquen(a)foss.st.com> Date: 2025-02-24 (Mon, 24 Feb 2025) Changed paths: M CMakeLists.txt Log Message: ----------- cmake: update cmake minimum support to 3.16 We currently support an old version of CMake (3.0.2) that was released in 2018. This requires adding specific policies to support the evolution to the latest versions of Zephyr. Update the minimum version to 3.16. The reason for this version is to support environments such as Debian Bullseye that are still in LTS state. By updating to CMake 3.16 as the minimum version, we can also clean up the following policy add-ons: - CMP0048 added in CMake v3.0 - CMP0053 added in CMake v3.1 - CMP0077 added in CMake v3.13 Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen(a)foss.st.com> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/libmetal/settings/notifications

2 months

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[OpenAMP/open-amp] 8c0c0c: cmake: update cmake minimum support to 3.16

by Arnaud Pouliquen

Branch: refs/heads/main Home: https://github.com/OpenAMP/open-amp Commit: 8c0c0c386b5799b54faf9613a191f66dee76e400 https://github.com/OpenAMP/open-amp/commit/8c0c0c386b5799b54faf9613a191f66d… Author: Arnaud Pouliquen <arnaud.pouliquen(a)foss.st.com> Date: 2025-02-24 (Mon, 24 Feb 2025) Changed paths: M CMakeLists.txt Log Message: ----------- cmake: update cmake minimum support to 3.16 We currently support an old version of CMake (3.0.2) that was released in 2018. This requires adding specific policies to support the evolution to the latest versions of Zephyr. Update the minimum version to 3.16, aligned with the libmetal. By updating to CMake 3.16 as the minimum version, we can also clean up the following policy add-ons: - CMP0048 added in CMake v3.0 - CMP0077 added in CMake v3.13 Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen(a)foss.st.com> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/open-amp/settings/notifications

2 months

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[OpenAMP/open-amp] 00e0d7: docs: update the readthedocs integration for PRs i...

by Bill Mills

Branch: refs/heads/main Home: https://github.com/OpenAMP/open-amp Commit: 00e0d7abf045c4b7d4b88579475b9e95bbca9d3c https://github.com/OpenAMP/open-amp/commit/00e0d7abf045c4b7d4b88579475b9e95… Author: Bill Mills <bill.mills(a)linaro.org> Date: 2025-02-17 (Mon, 17 Feb 2025) Changed paths: M .readthedocs.yaml A doc/readthedocs-conf.py Log Message: ----------- docs: update the readthedocs integration for PRs in this repo Upstream Read The Docs has tightened up the schema checking and this broke what we were doing for PRs. A good number of things were tried but the best compromise is to: * supply a dummy sphinx config file in this repo * override the default build command to use the openamp-docs dir Also: * add more documentation about what is going on * lock to html only format. PRs only do html anyway but make sure 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

2 months, 1 week

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[OpenAMP/libmetal] 51719e: docs: update the readthedocs integration for PRs i...

by Bill Mills

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: 51719ef1dae5371c89b3e28f107389d03a765a3b https://github.com/OpenAMP/libmetal/commit/51719ef1dae5371c89b3e28f107389d0… Author: Bill Mills <bill.mills(a)linaro.org> Date: 2025-02-14 (Fri, 14 Feb 2025) Changed paths: M .readthedocs.yaml A doc/readthedocs-conf.py Log Message: ----------- docs: update the readthedocs integration for PRs in this repo Upstream Read The Docs has tightened up the schema checking and this broke what we were doing for PRs. A good number of things were tried but the best compromise is to: * supply a dummy sphinx config file in this repo * override the default build command to use the openamp-docs dir Also: * add more documentation about what is going on * lock to html only format. PRs only do html anyway but make sure Signed-off-by: Bill Mills <bill.mills(a)linaro.org> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/libmetal/settings/notifications

2 months, 1 week

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[OpenAMP/libmetal] 961d01: io: fix buffer overflow in metal_sys_io_mem_map()

by Iulia Prodan

Branch: refs/heads/main Home: https://github.com/OpenAMP/libmetal Commit: 961d0171a6770d6c68ed9a2ba4c0cc607e141c03 https://github.com/OpenAMP/libmetal/commit/961d0171a6770d6c68ed9a2ba4c0cc60… Author: Iuliana Prodan <iuliana.prodan(a)nxp.com> Date: 2025-02-14 (Fri, 14 Feb 2025) Changed paths: M lib/system/freertos/io.c M lib/system/generic/io.c Log Message: ----------- io: fix buffer overflow in metal_sys_io_mem_map() In metal_sys_io_mem_map() if the I/O region size is a multiple of (1<<page_shift) will result in a buffer overflow in the for loop. Therefore, adjust loop termination condition to prevent accessing an out-of-bounds page. Signed-off-by: Iuliana Prodan <iuliana.prodan(a)nxp.com> To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/libmetal/settings/notifications

2 months, 1 week

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[OpenAMP/open-amp] 8bd614: lib: virtio: add new feature bit VIRTIO_F_ANY_LAYOUT

by Bowen

Branch: refs/heads/main Home: https://github.com/OpenAMP/open-amp Commit: 8bd6149dfc06533b34d1daab2a3f558ffa71cc3a https://github.com/OpenAMP/open-amp/commit/8bd6149dfc06533b34d1daab2a3f558f… Author: Bowen Wang <wangbowen6(a)xiaomi.com> Date: 2025-02-05 (Wed, 05 Feb 2025) Changed paths: M lib/include/openamp/virtio.h Log Message: ----------- lib: virtio: add new feature bit VIRTIO_F_ANY_LAYOUT Follow the virtio spec, this feature bit indicates that the device accepts arbitrary descriptor layouts. Signed-off-by: Bowen Wang <wangbowen6(a)xiaomi.com> Commit: b2f6099fe50f5453ff5453ba3711a833f6f4be53 https://github.com/OpenAMP/open-amp/commit/b2f6099fe50f5453ff5453ba3711a833… Author: Bowen Wang <wangbowen6(a)xiaomi.com> Date: 2025-02-05 (Wed, 05 Feb 2025) Changed paths: M lib/include/openamp/virtio.h Log Message: ----------- lib: virtio: add new api virtio_has_feature() virtio_has_feature() can be easily used to check if the virtio device support a specific feature. And assgin feature to vdev->feature for virtio device role when get features, so the virtio device side can use virtio_has_featrue() to check weather the virtio device support a feature. Signed-off-by: Bowen Wang <wangbowen6(a)xiaomi.com> Compare: https://github.com/OpenAMP/open-amp/compare/3122cec8aab7...b2f6099fe50f To unsubscribe from these emails, change your notification settings at https://github.com/OpenAMP/open-amp/settings/notifications

2 months, 2 weeks

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RPU crash core dump trace buffer

by sivaramakrishnan.prabhakaran＠hughes.com

Hello community, I am trying to get a trace buffer setup and working during an event of crash on RPU R5F cores. I am using Xilinx Zynq MP board with both Cortex-R5F on split mode. I build a minimal RPU firmware application where I try to force a crash and get the trace details from trace buffer. What I have done so far (along with Xilinx support personnel help) 1. Built the libmetal latest version 1.7.0 from https://github.com/OpenAMP/libmetal 2. Built the openamp latest version 1.7.0 from https://github.com/OpenAMP/open-amp 3. Built the RPU firmware app with both these libraries, I had to build and link both to use the metal debug feature. In the app, I create a resource table for the trace buffer as follows: struct remote_resource_table __resource resources = { .version = 1, .num = NUM_TABLE_ENTRIES, .reserved = {0, 0}, .offset[0] = offsetof(struct remote_resource_table, rpmsg_vdev), .offset[1] = offsetof(struct remote_resource_table, rsc_trace), /* Virtio device entry */ .rpmsg_vdev = { .type = RSC_VDEV, .id = VIRTIO_ID_RPMSG_, .notifyid = 31, .dfeatures = RPMSG_VDEV_DFEATURES, .gfeatures = 0, .config_len = 0, .status = 0, .num_of_vrings = NUM_VRINGS, .reserved = {0, 0}, }, /* Vring rsc entry - part of vdev rsc entry */ .rpmsg_vring0 = {RING_TX, VRING_ALIGN, VRING_SIZE, 1, 0}, .rpmsg_vring1 = {RING_RX, VRING_ALIGN, VRING_SIZE, 2, 0}, /* trace buffer for logs, accessible via debugfs */ .rsc_trace = { .type = RSC_TRACE, .da = (unsigned int)rsc_trace_buf, .len = sizeof(rsc_trace_buf), .reserved = 0, .name = "r5_trace", }, }; and in linker file, added the section in ddr as below: /* Define Memories in the system */ MEMORY { psu_ocm_ram_0_MEM_0 : ORIGIN = 0xFFFC0000, LENGTH = 0x40000 psu_r5_0_atcm_MEM_0 : ORIGIN = 0x0, LENGTH = 0x10000 psu_r5_0_btcm_MEM_0 : ORIGIN = 0x20000, LENGTH = 0x10000 psu_r5_ddr_0_MEM_0 : ORIGIN = 0x3ed00000, LENGTH = 0x40000 } /* Specify the default entry point to the program */ ENTRY(_boot) /* Define the sections, and where they are mapped in memory */ SECTIONS { .resource_table 0x3ed20000 : { . = ALIGN(4); *(.resource_table) } > psu_r5_ddr_0_MEM_0 Now when I try to create a core dump file by starting and running the RPU app from userspace, after I disable recovery and enable coredump, I don’t see any trace info about the coredump in the trace file other than print statements I added. See below. echo “disabled” > /sys/kernel/debug/remoteproc/remoteproc0/recovery echo “enabled” > /sys/kernel/debug/remoteproc/remoteproc0/enabled root@zcu102-zynqmp:/sys/kernel/debug/remoteproc/remoteproc0# ls -altr total 0 drwxr-xr-x 4 root root 0 Jan 1 1970 .. -r-------- 1 root root 0 Jan 14 18:05 resource_table -rw------- 1 root root 0 Jan 14 18:05 recovery -r-------- 1 root root 0 Jan 14 18:05 name --w------- 1 root root 0 Jan 14 18:05 crash -rw------- 1 root root 0 Jan 14 18:05 coredump -r-------- 1 root root 0 Jan 14 18:05 carveout_memories drwxr-xr-x 2 root root 0 Jan 14 18:05 . -r-------- 1 root root 0 Jan 14 18:10 trace0 root@zcu102-zynqmp:/sys/kernel/debug/remoteproc/remoteproc0# cat trace0 0 L7 registered generic bus 1 L6 MCS-sp: c_buf,c_len = 0x3ed3a7ec,40962 L6 MCS-sp: platform_create_proc()3 L6 ML:platform_create_proc() 4 L6 MCS-sp: rsc_table, rsc_size = 0x3ed20000, 0x1005 L6 MCS-sp: metal_device_open(generic, poll_dev, 0x23b4) 6 L6 MCS-sp: poll{name,bus,chn_mask} = poll_dev,generic,0x10000007 L6 MCS-sp: lpa,lda= 0x3ed20000,0xffffffff 8 L6 MCS-sp: mem= 0x34d8 9 L6 MCS-sp: tmpio= 0x3518 10 L6 MCS-sp: lpa,lda= 0x3ed40000,0xffffffff 11 L6 MCS-sp: mem= 0x3558 12 L6 MCS-sp: tmpio= 0x3598 13 L6 MCS-sp: Initialize remoteproc successfully.14 L6 MCS-sp: creating remoteproc virtio rproc 0x3ed3a7b4 15 L6 MCS-sp: initializing rpmsg shared buffer pool 16 L6 MCS-sp: initializing rpmsg vdev 17 L6 MCS-sp: trying to coredump root@zcu102-zynqmp:/sys/kernel/debug/remoteproc/remoteproc0# I also tried with “recovery” state enabled too with no luck. Any pointers on what I may be missing here? Hopefully I can get some help from the openamp community, appreciate the help! Copied file rpu.c is the main file where init_platform is called to init the platform and init_system() is called, and platform.c has these functions defined along with the resource table below. Thanks Siva rpu.c file: ----------------------------------------------------------------------- extern struct rpmsg_device * platform_create_rpmsg_vdev(void *platform, uint32_t vdev_index, uint32_t role, void (*rst_cb)(struct virtio_device *vdev), rpmsg_ns_bind_cb ns_bind_cb); int main(void) { unsigned long sweep_count = 0; void *platform; init_platform(&platform); struct rpmsg_device *rpdev; rpdev = platform_create_rpmsg_vdev(platform, 0, VIRTIO_DEV_DEVICE, NULL, NULL); if (!rpdev) { metal_log(METAL_LOG_INFO,"MCS-sp: Failed to create rpmsg virtio device.\r\n"); metal_log(METAL_LOG_INFO,"MCS-sp: RPU reboot is required to recover\r\n"); } while (1) { usleep(10); if(sweep_count++ >= 0x400000) { printf("MCS-sp: trying to coredump"); metal_log(METAL_LOG_INFO,"MCS-sp: trying to coredump\r\n"); sleep (1); metal_log(METAL_LOG_INFO,"MCS-sp: coredump here %d", (1/0)); printf("MCS-sp: coredump here %d", (1/0)); } } return 0; } platform.c file snippet ---------------------------------------------------------------------------------------------- static struct remoteproc * platform_create_proc(uint32_t proc_index, uint32_t rsc_index) { void *rsc_table; uint32_t rsc_size; int32_t ret; metal_phys_addr_t pa; (void) proc_index; rsc_table = get_resource_table(rsc_index, &rsc_size); metal_log(METAL_LOG_INFO,"MCS-sp: rsc_table, rsc_size = %#x, %#x", rsc_table, rsc_size); /* Register IPI device */ if (metal_register_generic_device(&kick_device)) return NULL; /* Initialize remoteproc instance */ if (!remoteproc_init(&rproc_inst, &zynqmp_r5_a53_proc_ops, &rproc_priv)) return NULL; metal_log(METAL_LOG_INFO,"MCS-sp: poll{name,bus,chn_mask} = %s,%s,%#x", rproc_priv.kick_dev_name, rproc_priv.kick_dev_bus_name, IPI_CHN_BITMASK); /* * Mmap shared memories * Or shall we constraint that they will be set as carved out * in the resource table? */ /* mmap resource table */ pa = (metal_phys_addr_t)rsc_table; (void *)remoteproc_mmap(&rproc_inst, &pa, NULL, rsc_size, NORM_NSHARED_NCACHE|PRIV_RW_USER_RW, &rproc_inst.rsc_io); /* mmap shared memory */ pa = SHARED_MEM_PA; (void *)remoteproc_mmap(&rproc_inst, &pa, NULL, SHARED_MEM_SIZE, NORM_NSHARED_NCACHE|PRIV_RW_USER_RW, NULL); /* parse resource table to remoteproc */ ret = remoteproc_set_rsc_table(&rproc_inst, rsc_table, rsc_size); if (ret != 0) { metal_log(METAL_LOG_INFO,"MCS-sp: Failed to initialize remoteproc"); remoteproc_remove(&rproc_inst); return NULL; } metal_log(METAL_LOG_INFO,"MCS-sp: Initialize remoteproc successfully."); return &rproc_inst; } int32_t init_system(void); struct rpmsg_device * platform_create_rpmsg_vdev(void *platform, uint32_t vdev_index, uint32_t role, void (*rst_cb)(struct virtio_device *vdev), rpmsg_ns_bind_cb ns_bind_cb); int init_platform(void **platform) { /* metal_log setup is in init_system */ if (!platform) { metal_log(METAL_LOG_INFO,"MCS-sp: Failed to initialize platform," "NULL pointer to store platform data."); return -EINVAL; } init_system(); unsigned long proc_id = 0; unsigned long rsc_id = 0; metal_log(METAL_LOG_INFO, "MCS-sp: platform_create_proc()"); ML_INFO("ML:platform_create_proc()\r\n"); struct remoteproc *rproc; rproc = platform_create_proc(proc_id, rsc_id); if (!rproc) { metal_log(METAL_LOG_INFO,"MCS-sp: Failed to create remoteproc device."); return -EINVAL; } *platform = rproc; return 0; } void cleanup_platform() { disable_caches(); } struct rpmsg_device * platform_create_rpmsg_vdev(void *platform, uint32_t vdev_index, uint32_t role, void (*rst_cb)(struct virtio_device *vdev), rpmsg_ns_bind_cb ns_bind_cb) { struct remoteproc *rproc = platform; struct rpmsg_virtio_device *rpmsg_vdev; struct virtio_device *vdev; void *shbuf; struct metal_io_region *shbuf_io; int32_t ret; struct rpmsg_device *ret_rpmsg_dev=NULL; rpmsg_vdev = metal_allocate_memory(sizeof(*rpmsg_vdev)); if (!rpmsg_vdev) return NULL; shbuf_io = remoteproc_get_io_with_pa(rproc, SHARED_MEM_PA); if (!shbuf_io){ goto err1; } shbuf = metal_io_phys_to_virt(shbuf_io, SHARED_MEM_PA + SHARED_BUF_OFFSET); metal_log(METAL_LOG_INFO,"MCS-sp: creating remoteproc virtio rproc %p\r\n", rproc); /* TODO: can we have a wrapper for the following two functions? */ vdev = remoteproc_create_virtio(rproc, vdev_index, role, rst_cb); if (!vdev) { metal_log(METAL_LOG_INFO,"MCS-sp: failed remoteproc_create_virtio\r\n"); goto err1; } metal_log(METAL_LOG_INFO,"MCS-sp: initializing rpmsg shared buffer pool\r\n"); /* Only RPMsg virtio master needs to initialize the shared buffers pool */ rpmsg_virtio_init_shm_pool(&shpool, shbuf, (SHARED_MEM_SIZE - SHARED_BUF_OFFSET)); metal_log(METAL_LOG_INFO,"MCS-sp: initializing rpmsg vdev\r\n"); /* RPMsg virtio device can set shared buffers pool argument to NULL */ ret = rpmsg_init_vdev(rpmsg_vdev, vdev, ns_bind_cb, shbuf_io, &shpool); if (ret != 0) { metal_log(METAL_LOG_INFO,"MCS-sp: failed rpmsg_init_vdev\r\n"); goto err2; } ret_rpmsg_dev = rpmsg_virtio_get_rpmsg_device(rpmsg_vdev); if (rpmsg_vdev != NULL){ metal_free_memory(rpmsg_vdev); } return ret_rpmsg_dev; err2: remoteproc_remove_virtio(rproc, vdev); err1: metal_free_memory(rpmsg_vdev); return NULL; } static void rsc_trace_putchar(char c) { if (circ.c_pos >= circ.c_len) circ.c_pos = 0; circ.c_buf[circ.c_pos++] = c; } static void rsc_trace_logger(enum metal_log_level level, const char *format, ...) { char msg[128]; char *p; int32_t len; va_list args; /* prefix "cnt L6 ": record count and log level */ len = sprintf(msg, "%lu L%u ", circ.c_cnt, level); if (len < 0 || len >= sizeof(msg)) len = 0; circ.c_cnt++; va_start(args, format); vsnprintf(msg + len, sizeof(msg) - len, format, args); va_end(args); /* copy at most sizeof(msg) to the circular buffer */ for (len = 0, p = msg; *p && len < sizeof(msg); ++len, ++p) rsc_trace_putchar(*p); /* Remove this xil_printf to stop printing to console */ xil_printf("%s", msg); } char *get_rsc_trace_info(uint32_t *len) { *len = sizeof(rsc_trace_buf); return rsc_trace_buf; } void *get_resource_table (uint32_t rsc_id, uint32_t *len) { (void) rsc_id; *len = sizeof(resources); return &resources; } int32_t init_system(void) { int32_t ret; struct metal_init_params metal_param = METAL_INIT_DEFAULTS; circ.c_buf = get_rsc_trace_info(&circ.c_len); if (circ.c_buf && circ.c_len){ metal_param.log_handler = &rsc_trace_logger; metal_param.log_level = METAL_LOG_DEBUG; circ.c_pos = circ.c_cnt = 0; }; /* Low level abstraction layer for openamp initialization */ metal_init(&metal_param); /* configure the global interrupt controller */ app_gic_initialize(); /* Initialize metal Xilinx IRQ controller */ ret = metal_xlnx_irq_init(); if (ret != 0) { metal_log(METAL_LOG_INFO,"MCS-sp: metal_xlnx_irq_init failed."); } metal_log(METAL_LOG_INFO,"MCS-sp: c_buf,c_len = %p,%u", circ.c_buf, circ.c_len); return ret; }

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