- Openamp-rp - lists.openampproject.org

by Sara Alonso

Hi! I am a PhD student and I am using OpenAMP for a research work. I am trying to compare latencies between a FreeRTOS application in R5 with OpenAMP and a FreeRTOS application in A53 with Xen hypervisor. I am using a zynq ZCU102 platform. I have just started the PhD, so I am not completely sure of what I am going to do for the thesis. I wanted to relate this (OpenAMP, hypervisors...) with the FPGA, but I don't know how. Now my intention is to do a paper (my first article) about the latencies with OpenAMP and Xen. If someone has any advice for me, I'd be glad to listen to it. Also, when I get stuck at something (I am new using OpenAMP) I wolud like to ask you for support if you agree. Thank you very much! Sara Hi! I am a PhD student and I am using OpenAMP for a research work. I am trying to compare latencies between a FreeRTOS application in R5 with OpenAMP and a FreeRTOS application in A53 with Xen hypervisor. I am using a zynq ZCU102 platform. I have just started the PhD, so I am not completely sure of what I am going to do for the thesis. I wanted to relate this (OpenAMP, hypervisors...) with the FPGA, but I don't know how. Now my intention is to do a paper (my first article) about the latencies with OpenAMP and Xen. If someone has any advice for me, I'd be glad to listen to it. Also, when I get stuck at something (I am new using OpenAMP) I wolud like to ask you for support if you agree. Thank you very much! Sara

5 years, 2 months

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[OpenAMP/open-amp] e8b30c: Fix compilation error.Add missing semicolon.

by GFWisshit

Branch: refs/heads/master Home: https://github.com/OpenAMP/open-amp Commit: e8b30cd2e189069d01d413470c55ac42a9798fa3 https://github.com/OpenAMP/open-amp/commit/e8b30cd2e189069d01d413470c55ac42… Author: GFWisshit <qq979818120(a)gmail.com> Date: 2021-02-16 (Tue, 16 Feb 2021) Changed paths: M lib/include/openamp/virtqueue.h Log Message: ----------- Fix compilation error.Add missing semicolon.

5 years, 2 months

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Meeting today at normal time

by Bill Mills

Hello all, There is a meeting today at the normal time: 4 PM GMT, 11 AM US Eastern We are still using the same zoom meeting number. (I will switch after this call.) Thanks, Bill -- Bill Mills Principal Technical Consultant, Linaro +1-240-643-0836 TZ: US Eastern Work Schedule: Tues/Wed/Thur

5 years, 2 months

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Meeting today at in 1 hour

by Bill Mills

All, We have our normal OpenAMP meeting today (Jan 14) in 1 hour: 11 AM US Eastern, 4PM GMT Thanks, Bill -- Bill Mills Principal Technical Consultant, Linaro +1-240-643-0836 TZ: US Eastern Work Schedule: Tues/Wed/Thur

5 years, 3 months

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[OpenAMP/open-amp] 33037b: apps: machine: Fix MicroBlaze compilation error

by kernelchuk

Branch: refs/heads/master Home: https://github.com/OpenAMP/open-amp Commit: 33037b04e0732e58fc0fa36afc244999ef632e10 https://github.com/OpenAMP/open-amp/commit/33037b04e0732e58fc0fa36afc244999… Author: Sergei Korneichuk <sergei.korneichuk(a)xilinx.com> Date: 2021-01-11 (Mon, 11 Jan 2021) Changed paths: M apps/machine/microblaze_generic/platform_info.c Log Message: ----------- apps: machine: Fix MicroBlaze compilation error Fix duplicated function definition with bad code. See https://github.com/OpenAMP/open-amp/issues/252 Signed-off-by: Sergei Korneichuk <sergei.korneichuk(a)xilinx.com>

5 years, 3 months

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[OpenAMP/libmetal] f252f0: FreeRTOS: Allow tick rates greater than 1000 for m...

by Ed Mooring

Branch: refs/heads/master Home: https://github.com/OpenAMP/libmetal Commit: f252f0e007fbfb8b3a52b1d5901250ddac96baad https://github.com/OpenAMP/libmetal/commit/f252f0e007fbfb8b3a52b1d5901250dd… Author: Ed Mooring <ed.mooring(a)linaro.org> Date: 2021-01-11 (Mon, 11 Jan 2021) Changed paths: M lib/system/freertos/sleep.h Log Message: ----------- FreeRTOS: Allow tick rates greater than 1000 for metal_sleep_usec(). metal_sleep_usec() used portTICK_PERIOD_MS to determine how long to sleep. If the FreeRTOS tick rate is set to greater than 1000, this will be 0, resulting in a divide by zero error at run time. This changes it to use pdMS_TO_TICKS(), which can accomodate higher tick rates. Signed-off-by: Ed Mooring <ed.mooring(a)linaro.org>

5 years, 3 months

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[OpenAMP/open-amp] c7757c: remoteproc: add get_mem callback to remoteproc_ops

by Xiang Xiao

Branch: refs/heads/master Home: https://github.com/OpenAMP/open-amp Commit: c7757cf52c3a13404c50860f08cd2252d2e2edec https://github.com/OpenAMP/open-amp/commit/c7757cf52c3a13404c50860f08cd2252… Author: Xiang Xiao <xiaoxiang(a)xiaomi.com> Date: 2021-01-04 (Mon, 04 Jan 2021) Changed paths: M lib/include/openamp/remoteproc.h M lib/remoteproc/remoteproc.c Log Message: ----------- remoteproc: add get_mem callback to remoteproc_ops Since the mapping info is normally managed inside the porting layer, the new callback could avoid the mapping duplication. Signed-off-by: Xiang Xiao <xiaoxiang(a)xiaomi.com>

5 years, 3 months

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No meeting today

by Bill Mills

All, Today's meeting was canceled and the change sent out two weeks ago. See you on Jan 14! Thanks, Bill

5 years, 3 months

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No meeting on 12/31

by Bill Mills

Hello, There were only four of us on the call today so we called it off after 10 minutes. There is no meeting on Dec 31 so our next meeting will be Jan 14. (I did send a cancellation for the Dec 31 but it may still be on your calendar so please delete it manually.) I hope everyone enjoys whatever winter holidays you practice. See you in the new year. Thanks, Bill

5 years, 4 months

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[OpenAMP/libmetal] 73f746: lib/system/linux: pass correct offset to metal_map()

by Léo Sartre

Branch: refs/heads/master Home: https://github.com/OpenAMP/libmetal Commit: 73f746ecf6d384ea328632a31e7f2982e343ebc8 https://github.com/OpenAMP/libmetal/commit/73f746ecf6d384ea328632a31e7f2982… Author: Leo Sartre <sartre.l(a)ecagroup.com> Date: 2020-12-15 (Tue, 15 Dec 2020) Changed paths: M lib/system/linux/device.c Log Message: ----------- lib/system/linux: pass correct offset to metal_map() According to UIO documentation, the offset device tree property purpose is to be used "if the device’s memory is not page aligned". Quoting the same documentation: "To map the memory of mapping N, you have to use N times the page size as your offset" So wee need to pass i * getpagesize() to get the correct mapping, otherwise, we end up with all io_region pointing to the same area. Signed-off-by: Leo Sartre <sartre.l(a)ecagroup.com> Commit: f52728d078578cb985940c9e6a7f247fa1baa8d1 https://github.com/OpenAMP/libmetal/commit/f52728d078578cb985940c9e6a7f247f… Author: Leo Sartre <sartre.l(a)ecagroup.com> Date: 2020-12-15 (Tue, 15 Dec 2020) Changed paths: M README.md Log Message: ----------- README.md: note about non page aligned devices on Linux According to the Linux kernel UIO documentation, access to device's memory that is not page aligned requires to add the proper offset to the pointer returned by mmap() that is stored into the 'virt' field of the metal_io_region structure. Document this limitation until this offset is handled properly by the library. Signed-off-by: Leo Sartre <sartre.l(a)ecagroup.com> Compare: https://github.com/OpenAMP/libmetal/compare/9c807f04e779...f52728d07857

5 years, 4 months

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