[yocto] bitbake openamp-image-minimal fails to create image

[Jiaying Liang]

From: Pandey, Kamal [mailto:Kamal.Pandey at ifm.com]
Sent: Thursday, January 10, 2019 1:57 AM
To: Jiaying Liang <jliang at xilinx.com>; yocto at yoctoproject.org
Subject: RE: bitbake openamp-image-minimal fails to create image

Hi wendy,
Thanks for replying. I have already enabled remoteproc, rpmsg and virtio in the kernel configuration.
I have also added
CORE_IMAGE_EXTRA_INSTALL += " \
kernel-modules \
"
In my local.conf file.
I generated BOOT.bin file from bootgen.bif file after adding the rpu firmware:
[destination_cpu=r5-0] <path to RPU firmware>
While booting the device I didn't see r5 code being booted.
Now I am trying Building Linux Applications Using OpenAMP RPMsg in Linux Userspace
Using meta-openamp layer.
I found that there is a patch "Add Xilinx ZynqMP R5 remoteproc driver.patch"  to have a53 and r5 communication. Is this patch required for the purpose of  openamp in userspace?
This patch was missing in meta-xilinx and I brought it to my custom layer, but it failed to apply giving the following error:

error: include/linux/firmware/xlnx-zynqmp.h: does not exist in index
| error: include/linux/firmware/xlnx-zynqmp.h: does not exist in index
| error: include/linux/firmware/xlnx-zynqmp.h: does not exist in index
| error: drivers/firmware/xilinx/zynqmp.c: does not exist in index
| error: include/linux/firmware/xlnx-zynqmp.h: does not exist in index
| error: drivers/firmware/xilinx/zynqmp.c: does not exist in index
| error: include/linux/firmware/xlnx-zynqmp.h: does not exist in index
| [ERROR]: Application of .kernel-meta//patches//./0276-Add-Xilinx-ZynqMP-R5-remoteproc-driver.patch failed.
|          Patch needs to be refreshed. Sample resolution script:
|              .git/rebase-apply/resolve_rejects
| ERROR: Could not apply patches for pdm3-rev-b-zynqmp.
| ERROR: Patch failures can be resolved in the linux source directory /media/iepl/iepl1/work/yocto_build/build_openamp/tmp/work-shared/pdm3-rev-b-zynqmp/kernel-source)
| WARNING: /media/iepl/iepl1/work/yocto_build/build_openamp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/linux-yocto/4.14.79+gitAUTOINC+f1d93b219b-r0/temp/run.do_patch.17384:1 exit 1 from 'exit 1'
| ERROR: Function failed: do_patch (log file is located at /media/iepl/iepl1/work/yocto_build/build_openamp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/linux-yocto/4.14.79+gitAUTOINC+f1d93b219b-r0/temp/log.do_patch.17384)

Now the Xilinx document UG1186 never mentioned about this patch or driver. Also is this patch for the kernelspace implementation or userspace implementation.
[Wendy] the r5 remoteproc driver is to load RPU firmware from linux, and for RPMsg in kernel space implementation. It is not required for userspace implementation.
>From your error message, it looks like you don't have : include/linux/firmware/xlnx-zynqmp.h in your kernel.
Did you use linux kernel from github.com/xilinx?

And I am using tftp boot. I think that if r5 was able to boot it should show me while booting as I am serially connected to the device.
[Wendy] if you want to boot R5 from Linux, you will need to use r5 remoteproc driver to do so. By default, Linux will not auto boot R5.

Best Regards,
Wendy

Please provide any pointers on this. Has anyone implemented this using meta-openamp layer and no petalinux.
Thanks
From: Jiaying Liang <jliang at xilinx.com<mailto:jliang at xilinx.com>>
Sent: 10 January 2019 11:14
To: Manjukumar Harthikote Matha <MANJUKUM at xilinx.com<mailto:MANJUKUM at xilinx.com>>; Pandey, Kamal <Kamal.Pandey at ifm.com<mailto:Kamal.Pandey at ifm.com>>; yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>; meta-xilinx at yoctoproject.org<mailto:meta-xilinx at yoctoproject.org>
Subject: RE: bitbake openamp-image-minimal fails to create image



From: yocto-bounces at yoctoproject.org<mailto:yocto-bounces at yoctoproject.org> [mailto:yocto-bounces at yoctoproject.org] On Behalf Of Manjukumar Harthikote Matha
Sent: Monday, January 07, 2019 10:51 AM
To: Pandey, Kamal <Kamal.Pandey at ifm.com<mailto:Kamal.Pandey at ifm.com>>; yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>; meta-xilinx at yoctoproject.org<mailto:meta-xilinx at yoctoproject.org>
Subject: Re: [yocto] bitbake openamp-image-minimal fails to create image

+meta-xilinx mailing list

From: Pandey, Kamal [mailto:Kamal.Pandey at ifm.com]
Sent: Monday, January 07, 2019 8:59 AM
To: yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>; Manjukumar Harthikote Matha <MANJUKUM at xilinx.com<mailto:MANJUKUM at xilinx.com>>
Subject: RE: bitbake openamp-image-minimal fails to create image

Hi,
I solved the problem by using meta-openamp(branch should be similar to xilinx version) layer in my yocto project and enabled "libmetal" and "open-amp" packages in my image recipe. It compiled successfully.  I also add rpmsg-echo-test,  rpmsg-mat-mul , and rpmsg-proxy-app packages in the image and it successfully compiled. I am building Linux Application that uses RPMsg in user space.
Now the executable generated from echo-test or mat-mul are in my host linux master (a53-core). I have also created an r5-application using XSDK.
What is the next step to have a communication between a53 and r5. How to use the generated elf file for r5 processor.
Also I have enabled remoteproc, rpmsg, virtio  in kernel configuration.
But while using the command " $modprobe zynqmp_r5_remoteproc", I get the following error:

"modprobe: module zynqmp_r5_remoteproc not found in modules.dep"
[Wendy] It doesn't look like the zynqmp_r5_remoteproc driver is compiled or maybe it is compiled but not add into the system.

Please check the following:

*       If your linux kernel has enabled in your kernel .config

*       If you have "kernel-modules" added to your image

o   E.g.:

o   CORE_IMAGE_EXTRA_INSTALL += " \

o       kernel-modules \

o   "
Best Regards,
Wendy
How can I boot the r5 processor and where to store the elf file generated.
From: Manjukumar Harthikote Matha <MANJUKUM at xilinx.com<mailto:MANJUKUM at xilinx.com>>
Sent: 07 January 2019 13:53
To: Pandey, Kamal <Kamal.Pandey at ifm.com<mailto:Kamal.Pandey at ifm.com>>; yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>
Subject: RE: bitbake openamp-image-minimal fails to create image

Hi Kamal,

Seems like the required kernel modules are missing causing the breakage.
Enable them using kernel menuconfig (bitbake virtual/kernel -c menuconfig) and then build the image

Thanks,
Manju

From: yocto-bounces at yoctoproject.org<mailto:yocto-bounces at yoctoproject.org> [mailto:yocto-bounces at yoctoproject.org] On Behalf Of Pandey, Kamal
Sent: Sunday, January 06, 2019 11:14 PM
To: yocto at yoctoproject.org<mailto:yocto at yoctoproject.org>
Subject: [yocto] bitbake openamp-image-minimal fails to create image

Hello,
I used the meta-openamp layer for r5-a53 communication.
but when I simply ran $bitbake openamp-image-minimal, it gave me the following error:

ERROR: openamp-image-minimal-1.0-r0 do_rootfs: Could not invoke dnf. Command '/media/iepl/iepl1/work/yocto_build/build-open-amp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/openamp-image-minimal/1.0-r0/recipe-sysroot-native/usr/bin/dnf -y -c /media/iepl/iepl1/work/yocto_build/build-open-amp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/openamp-image-minimal/1.0-r0/rootfs/etc/dnf/dnf.conf --setopt=reposdir=/media/iepl/iepl1/work/yocto_build/build-open-amp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/openamp-image-minimal/1.0-r0/rootfs/etc/yum.repos.d --repofrompath=oe-repo,/media/iepl/iepl1/work/yocto_build/build-open-amp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/openamp-image-minimal/1.0-r0/oe-rootfs-repo --installroot=/media/iepl/iepl1/work/yocto_build/build-open-amp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/openamp-image-minimal/1.0-r0/rootfs --setopt=logdir=/media/iepl/iepl1/work/yocto_build/build-open-amp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/openamp-image-minimal/1.0-r0/temp --nogpgcheck install kernel-module-virtio-ring kernel-module-virtio-rpmsg-bus kernel-module-uio-pdrv-genirq kernel-module-virtio libopen-amp0 packagegroup-base-extended kernel-image-fitimage-4.14.79-yocto-standard run-postinsts libmetal packagegroup-core-boot kernel-module-remoteproc' returned 1:
Added oe-repo repo from /media/iepl/iepl1/work/yocto_build/build-open-amp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/openamp-image-minimal/1.0-r0/oe-rootfs-repo
Last metadata expiration check: 0:00:00 ago on Fri 04 Jan 2019 01:58:31 PM UTC.
No package kernel-module-virtio-ring available.
No package   available.
No package kernel-module-virtio available.
No package   available.
Error: Unable to find a match

ERROR: openamp-image-minimal-1.0-r0 do_rootfs: Function failed: do_rootfs
ERROR: Logfile of failure stored in: /media/iepl/iepl1/work/yocto_build/build-open-amp/tmp/work/pdm3_rev_b_zynqmp-pdm3-linux/openamp-image-minimal/1.0-r0/temp/log.do_rootfs.7153
ERROR: Task (/home/iepl/work/yocto_build/poky/../meta-openamp/recipes-openamp/images/openamp-image-minimal.bb:do_rootfs) failed with exit code '1'


Can someone provide me a solution to this problem.
Thanks
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