head /sys/kernel/debug/remoteproc/remoteproc*/name
==> /sys/kernel/debug/remoteproc/remoteproc0/name <==
64800000.dsp

==> /sys/kernel/debug/remoteproc/remoteproc1/name <==
65800000.dsp


head /sys/kernel/debug/remoteproc/remoteproc*/resource_table
==> /sys/kernel/debug/remoteproc/remoteproc0/resource_table <==
Entry 0 is of type vdev
  ID 7
  Notify ID 0
  Device features 0x1
  Guest features 0x1
  Config length 0x0
  Status 0x7
  Number of vrings 2
  Reserved (should be zero) [0][0]


==> /sys/kernel/debug/remoteproc/remoteproc1/resource_table <==
Entry 0 is of type vdev
  ID 7
  Notify ID 0
  Device features 0x1
  Guest features 0x1
  Config length 0x0
  Status 0x7
  Number of vrings 2
  Reserved (should be zero) [0][0]

# dmesg_snippet

[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x411fd080]
[    0.000000] Linux version 6.6.58-ti-01497-ga7758da17c28-dirty (oe-user@oe-host) (aarch64-poky-linux-gcc (GCC) 13.3.0, GNU ld (GNU Binutils) 2.42.0.20240723) #1 SMP PREEMPT Wed Nov 27 13:23:15 UTC 2024
[    0.000000] OF: reserved mem: initialized node a72-c71-0-shared-msmc-ram@70200000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x0000000070200000..0x00000000702fffff (1024 KiB) nomap non-reusable a72-c71-0-shared-msmc-ram@70200000
[    0.000000] OF: reserved mem: initialized node c71-0-c71-1-shared-msmc-ram@70300000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x0000000070300000..0x00000000703fffff (1024 KiB) nomap non-reusable c71-0-c71-1-shared-msmc-ram@70300000
[    0.000000] OF: reserved mem: initialized node c71-dma-memory@a6000000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x00000000a6000000..0x00000000a60fffff (1024 KiB) nomap non-reusable c71-dma-memory@a6000000
[    0.000000] OF: reserved mem: initialized node c71-memory@a6100000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x00000000a6100000..0x00000000a6ffffff (15360 KiB) nomap non-reusable c71-memory@a6100000
[    0.000000] OF: reserved mem: initialized node c71-dma-memory@a7000000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x00000000a7000000..0x00000000a70fffff (1024 KiB) nomap non-reusable c71-dma-memory@a7000000
[    0.000000] OF: reserved mem: initialized node c71-memory@a7100000, compatible id shared-dma-pool
[    0.000000] OF: reserved mem: 0x00000000a7100000..0x00000000a7ffffff (15360 KiB) nomap non-reusable c71-memory@a7100000
[    5.540813] k3-dsp-rproc 64800000.dsp: assigned reserved memory node c71-dma-memory@a6000000
[    5.566833] k3-dsp-rproc 64800000.dsp: configured DSP for remoteproc mode
[    5.579912] remoteproc remoteproc0: 64800000.dsp is available
[    5.598116] k3-dsp-rproc 65800000.dsp: assigned reserved memory node c71-dma-memory@a7000000
[    5.620108] k3-dsp-rproc 65800000.dsp: configured DSP for remoteproc mode
[    5.669200] remoteproc remoteproc0: powering up 64800000.dsp
[    5.687921] remoteproc remoteproc0: Booting fw image j721s2-c71_0-fw, size 10488888
[    5.698163] remoteproc remoteproc0: unsupported resource 65538
[    5.704997] k3-dsp-rproc 64800000.dsp: booting DSP core using boot addr = 0xa6e00000
[    5.713606] remoteproc remoteproc1: 65800000.dsp is available
[    5.714201] rproc-virtio rproc-virtio.0.auto: assigned reserved memory node c71-dma-memory@a6000000
[    5.729108] virtio_rpmsg_bus virtio0: rpmsg host is online
[    5.739340] virtio_rpmsg_bus virtio0: creating channel ti.ipc4.ping-pong addr 0xd
[    5.765537] virtio_rpmsg_bus virtio0: creating channel rpmsg_chrdev addr 0xe
[    5.778585] remoteproc remoteproc0: remote processor 64800000.dsp is now up
[    5.829231] remoteproc remoteproc1: powering up 65800000.dsp
[    5.848329] remoteproc remoteproc1: Booting fw image j721s2-c71_1-fw, size 10488888
[    5.857069] remoteproc remoteproc1: unsupported resource 65538
[    5.863541] k3-dsp-rproc 65800000.dsp: booting DSP core using boot addr = 0xa7e00000
[    5.875027] rproc-virtio rproc-virtio.1.auto: assigned reserved memory node c71-dma-memory@a7000000
[    5.887494] virtio_rpmsg_bus virtio1: rpmsg host is online
[    5.896204] virtio_rpmsg_bus virtio1: creating channel ti.ipc4.ping-pong addr 0xd
[    5.904535] virtio_rpmsg_bus virtio1: creating channel rpmsg_chrdev addr 0xe
[    5.911189] remoteproc remoteproc1: remote processor 65800000.dsp is now up

# rpmsg devices
ls /dev/rpmsg*
/dev/rpmsg0       /dev/rpmsg1       /dev/rpmsg_ctrl0  /dev/rpmsg_ctrl1