SPIDEV slow (~3ms) on Beaglebone. SPI_DEBUG?
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Michele Xiloyannis
Nov 29, 2020, 12:32:59 PM11/29/20
to BeagleBoard
Hi all,
I am working with SPI, on both a BB AI and a BBBlue and on both machines a transfer on the using the ioctl() system call (spidev1.0 interface), takes approx 3ms. Is the kernel adding some overhead for debugging there that could be removed?
Would appreciate any help on how to do this.
Thanks a lot and have a great Sunday.
Michele
Robert Nelson
Nov 30, 2020, 9:40:12 AM11/30/20
to Beagle Board
sudo /opt/scripts/tools/version.sh
Regards,
--
Robert Nelson
https://rcn-ee.com/
Michele Xiloyannis
Nov 30, 2020, 10:31:50 AM11/30/20
to beagl...@googlegroups.com
Hi Robert,
thanks for the reply.
model:[BeagleBoard.org_BeagleBone_AI]
dogtag:[BeagleBoard.org Debian Buster IoT TIDL Image 2020-04-06]
UBOOT: Booted Device-Tree:[am5729-beagleboneai.dts]
UBOOT: Loaded Overlay:[BONE-I2C3]
UBOOT: Loaded Overlay:[BONE-SPI1_0]
UBOOT: Loaded Overlay:[BONE-SPI1_1]
UBOOT: Loaded Overlay:[BONE-UART5]
kernel:[4.19.94-ti-r55]
nodejs:[v10.21.0]
/boot/uEnv.txt Settings:
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[uboot_overlay_addr0=/lib/firmware/BONE-SPI1_0.dtbo]
uboot_overlay_options:[uboot_overlay_addr1=/lib/firmware/BONE-SPI1_1.dtbo]
uboot_overlay_options:[uboot_overlay_addr2=/lib/firmware/BONE-I2C3.dtbo]
uboot_overlay_options:[uboot_overlay_addr3=/lib/firmware/BONE-UART5.dtbo]
pkg check: to individually upgrade run: [sudo apt install --only-upgrade <pkg>]
pkg:[bb-cape-overlays]:[4.14.20201021.1-0~buster+20201021]
pkg:[bb-customizations]:[1.20201105.0-0~buster+20201110]
pkg:[bb-usb-gadgets]:[1.20200504.0-0~buster+20200504]
pkg:[bb-wl18xx-firmware]:[1.20200813.1-0~buster+20200813]
pkg:[kmod]:[26-1]
pkg:[librobotcontrol]:[1.0.5-git20200715.0-0~buster+20200716]
pkg:[firmware-ti-connectivity]:[20190717-2rcnee1~buster+20200305]
groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal bluetooth netdev i2c gpio pwm eqep remoteproc admin spi iio docker tisdk weston-launch xenomai cloud9ide]
cmdline:[console=ttyS0,115200n8 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 rng_core.default_quality=100 quiet]
dmesg | grep remote
[ 11.132152] remoteproc remoteproc0: 58820000.ipu is available
[ 11.166138] remoteproc remoteproc1: 55020000.ipu is available
[ 11.203119] remoteproc remoteproc0: powering up 58820000.ipu
[ 11.203139] remoteproc remoteproc0: Booting fw image dra7-ipu1-fw.xem4, size 7051536
[ 11.203195] Modules linked in: omap_remoteproc(+) virtio_rpmsg_bus remoteproc virtio virtio_ring usb_f_ncm usb_f_mass_storage usb_f_rndis u_ether libcomposite uio_pdrv_genirq uio cmemk(O) spidev
[ 11.203470] [<c0851e04>] (iommu_attach_device) from [<bf09f808>] (rproc_boot+0x380/0x6ec [remoteproc])
[ 11.203508] [<bf09f808>] (rproc_boot [remoteproc]) from [<bf09fb94>] (rproc_auto_boot_callback+0x20/0x2c [remoteproc])
[ 11.203528] [<bf09fb94>] (rproc_auto_boot_callback [remoteproc]) from [<c08f4c24>] (request_firmware_work_func+0x60/0x9c)
[ 11.221780] remoteproc remoteproc1: powering up 55020000.ipu
[ 11.221799] remoteproc remoteproc1: Booting fw image dra7-ipu2-fw.xem4, size 3751356
[ 11.222095] remoteproc remoteproc0: registered virtio0 (type 7)
[ 11.222102] remoteproc remoteproc0: remote processor 58820000.ipu is now up
[ 11.225372] remoteproc remoteproc2: 40800000.dsp is available
[ 11.225841] remoteproc remoteproc3: 41000000.dsp is available
[ 11.443664] remoteproc remoteproc1: registered virtio1 (type 7)
[ 11.443671] remoteproc remoteproc1: remote processor 55020000.ipu is now up
[ 11.506742] remoteproc remoteproc2: powering up 40800000.dsp
[ 11.506765] remoteproc remoteproc2: Booting fw image dra7-dsp1-fw.xe66, size 21014532
[ 11.510625] remoteproc remoteproc3: powering up 41000000.dsp
[ 11.510642] remoteproc remoteproc3: Booting fw image dra7-dsp2-fw.xe66, size 21014532
[ 11.570238] remoteproc remoteproc2: registered virtio2 (type 7)
[ 11.570245] remoteproc remoteproc2: remote processor 40800000.dsp is now up
[ 11.578670] remoteproc remoteproc3: registered virtio3 (type 7)
[ 11.578678] remoteproc remoteproc3: remote processor 41000000.dsp is now up
[ 21.494466] remoteproc remoteproc4: 4b234000.pru is available
[ 21.495285] remoteproc remoteproc5: 4b238000.pru is available
[ 21.500830] remoteproc remoteproc6: 4b2b4000.pru is available
[ 21.504067] remoteproc remoteproc7: 4b2b8000.pru is available
dmesg | grep pru
[ 19.761117] pruss_uio_shmem 4b200000.pruss_shmem: Allocating gdev
[ 19.761126] pruss_uio_shmem 4b200000.pruss_shmem: Allocating info
[ 19.761163] pruss_uio_shmem 4b200000.pruss_shmem: Requesting resource
[ 19.761208] pruss_uio_shmem 4b200000.pruss_shmem: Mapping resource
[ 19.761268] pruss_uio_shmem 4b200000.pruss_shmem: Registering with uio driver
[ 19.763540] pruss_uio_shmem 4b200000.pruss_shmem: Saving platform data
[ 19.782877] pruss_uio_shmem 4b280000.pruss_shmem: Allocating gdev
[ 19.782889] pruss_uio_shmem 4b280000.pruss_shmem: Allocating info
[ 19.782895] pruss_uio_shmem 4b280000.pruss_shmem: Requesting resource
[ 19.782917] pruss_uio_shmem 4b280000.pruss_shmem: Mapping resource
[ 19.782933] pruss_uio_shmem 4b280000.pruss_shmem: Registering with uio driver
[ 19.784197] pruss_uio_shmem 4b280000.pruss_shmem: Saving platform data
[ 21.494466] remoteproc remoteproc4: 4b234000.pru is available
[ 21.494536] pru-rproc 4b234000.pru: PRU rproc node pru@4b234000 probed successfully
[ 21.495285] remoteproc remoteproc5: 4b238000.pru is available
[ 21.495349] pru-rproc 4b238000.pru: PRU rproc node pru@4b238000 probed successfully
[ 21.500830] remoteproc remoteproc6: 4b2b4000.pru is available
[ 21.500893] pru-rproc 4b2b4000.pru: PRU rproc node pru@4b2b4000 probed successfully
[ 21.504067] remoteproc remoteproc7: 4b2b8000.pru is available
[ 21.504135] pru-rproc 4b2b8000.pru: PRU rproc node pru@4b2b8000 probed successfully
dmesg | grep pinctrl-single
[ 1.008685] pinctrl-single 4a003400.pinmux: 282 pins, size 1128
dmesg | grep gpio-of-helper
[ 1.021032] gpio-of-helper 44000000.ocp:cape-universal: ready
lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
END
dogtag:[BeagleBoard.org Debian Buster IoT TIDL Image 2020-04-06]
UBOOT: Booted Device-Tree:[am5729-beagleboneai.dts]
UBOOT: Loaded Overlay:[BONE-I2C3]
UBOOT: Loaded Overlay:[BONE-SPI1_0]
UBOOT: Loaded Overlay:[BONE-SPI1_1]
UBOOT: Loaded Overlay:[BONE-UART5]
kernel:[4.19.94-ti-r55]
nodejs:[v10.21.0]
/boot/uEnv.txt Settings:
uboot_overlay_options:[enable_uboot_overlays=1]
uboot_overlay_options:[uboot_overlay_addr0=/lib/firmware/BONE-SPI1_0.dtbo]
uboot_overlay_options:[uboot_overlay_addr1=/lib/firmware/BONE-SPI1_1.dtbo]
uboot_overlay_options:[uboot_overlay_addr2=/lib/firmware/BONE-I2C3.dtbo]
uboot_overlay_options:[uboot_overlay_addr3=/lib/firmware/BONE-UART5.dtbo]
pkg check: to individually upgrade run: [sudo apt install --only-upgrade <pkg>]
pkg:[bb-cape-overlays]:[4.14.20201021.1-0~buster+20201021]
pkg:[bb-customizations]:[1.20201105.0-0~buster+20201110]
pkg:[bb-usb-gadgets]:[1.20200504.0-0~buster+20200504]
pkg:[bb-wl18xx-firmware]:[1.20200813.1-0~buster+20200813]
pkg:[kmod]:[26-1]
pkg:[librobotcontrol]:[1.0.5-git20200715.0-0~buster+20200716]
pkg:[firmware-ti-connectivity]:[20190717-2rcnee1~buster+20200305]
groups:[debian : debian adm kmem dialout cdrom floppy audio dip video plugdev users systemd-journal bluetooth netdev i2c gpio pwm eqep remoteproc admin spi iio docker tisdk weston-launch xenomai cloud9ide]
cmdline:[console=ttyS0,115200n8 root=/dev/mmcblk1p1 ro rootfstype=ext4 rootwait coherent_pool=1M net.ifnames=0 rng_core.default_quality=100 quiet]
dmesg | grep remote
[ 11.132152] remoteproc remoteproc0: 58820000.ipu is available
[ 11.166138] remoteproc remoteproc1: 55020000.ipu is available
[ 11.203119] remoteproc remoteproc0: powering up 58820000.ipu
[ 11.203139] remoteproc remoteproc0: Booting fw image dra7-ipu1-fw.xem4, size 7051536
[ 11.203195] Modules linked in: omap_remoteproc(+) virtio_rpmsg_bus remoteproc virtio virtio_ring usb_f_ncm usb_f_mass_storage usb_f_rndis u_ether libcomposite uio_pdrv_genirq uio cmemk(O) spidev
[ 11.203470] [<c0851e04>] (iommu_attach_device) from [<bf09f808>] (rproc_boot+0x380/0x6ec [remoteproc])
[ 11.203508] [<bf09f808>] (rproc_boot [remoteproc]) from [<bf09fb94>] (rproc_auto_boot_callback+0x20/0x2c [remoteproc])
[ 11.203528] [<bf09fb94>] (rproc_auto_boot_callback [remoteproc]) from [<c08f4c24>] (request_firmware_work_func+0x60/0x9c)
[ 11.221780] remoteproc remoteproc1: powering up 55020000.ipu
[ 11.221799] remoteproc remoteproc1: Booting fw image dra7-ipu2-fw.xem4, size 3751356
[ 11.222095] remoteproc remoteproc0: registered virtio0 (type 7)
[ 11.222102] remoteproc remoteproc0: remote processor 58820000.ipu is now up
[ 11.225372] remoteproc remoteproc2: 40800000.dsp is available
[ 11.225841] remoteproc remoteproc3: 41000000.dsp is available
[ 11.443664] remoteproc remoteproc1: registered virtio1 (type 7)
[ 11.443671] remoteproc remoteproc1: remote processor 55020000.ipu is now up
[ 11.506742] remoteproc remoteproc2: powering up 40800000.dsp
[ 11.506765] remoteproc remoteproc2: Booting fw image dra7-dsp1-fw.xe66, size 21014532
[ 11.510625] remoteproc remoteproc3: powering up 41000000.dsp
[ 11.510642] remoteproc remoteproc3: Booting fw image dra7-dsp2-fw.xe66, size 21014532
[ 11.570238] remoteproc remoteproc2: registered virtio2 (type 7)
[ 11.570245] remoteproc remoteproc2: remote processor 40800000.dsp is now up
[ 11.578670] remoteproc remoteproc3: registered virtio3 (type 7)
[ 11.578678] remoteproc remoteproc3: remote processor 41000000.dsp is now up
[ 21.494466] remoteproc remoteproc4: 4b234000.pru is available
[ 21.495285] remoteproc remoteproc5: 4b238000.pru is available
[ 21.500830] remoteproc remoteproc6: 4b2b4000.pru is available
[ 21.504067] remoteproc remoteproc7: 4b2b8000.pru is available
dmesg | grep pru
[ 19.761117] pruss_uio_shmem 4b200000.pruss_shmem: Allocating gdev
[ 19.761126] pruss_uio_shmem 4b200000.pruss_shmem: Allocating info
[ 19.761163] pruss_uio_shmem 4b200000.pruss_shmem: Requesting resource
[ 19.761208] pruss_uio_shmem 4b200000.pruss_shmem: Mapping resource
[ 19.761268] pruss_uio_shmem 4b200000.pruss_shmem: Registering with uio driver
[ 19.763540] pruss_uio_shmem 4b200000.pruss_shmem: Saving platform data
[ 19.782877] pruss_uio_shmem 4b280000.pruss_shmem: Allocating gdev
[ 19.782889] pruss_uio_shmem 4b280000.pruss_shmem: Allocating info
[ 19.782895] pruss_uio_shmem 4b280000.pruss_shmem: Requesting resource
[ 19.782917] pruss_uio_shmem 4b280000.pruss_shmem: Mapping resource
[ 19.782933] pruss_uio_shmem 4b280000.pruss_shmem: Registering with uio driver
[ 19.784197] pruss_uio_shmem 4b280000.pruss_shmem: Saving platform data
[ 21.494466] remoteproc remoteproc4: 4b234000.pru is available
[ 21.494536] pru-rproc 4b234000.pru: PRU rproc node pru@4b234000 probed successfully
[ 21.495285] remoteproc remoteproc5: 4b238000.pru is available
[ 21.495349] pru-rproc 4b238000.pru: PRU rproc node pru@4b238000 probed successfully
[ 21.500830] remoteproc remoteproc6: 4b2b4000.pru is available
[ 21.500893] pru-rproc 4b2b4000.pru: PRU rproc node pru@4b2b4000 probed successfully
[ 21.504067] remoteproc remoteproc7: 4b2b8000.pru is available
[ 21.504135] pru-rproc 4b2b8000.pru: PRU rproc node pru@4b2b8000 probed successfully
dmesg | grep pinctrl-single
[ 1.008685] pinctrl-single 4a003400.pinmux: 282 pins, size 1128
dmesg | grep gpio-of-helper
[ 1.021032] gpio-of-helper 44000000.ocp:cape-universal: ready
lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
END
Michele
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