Hi,
Am 11.04.22 um 13:00 schrieb Stefan Wahren:
Hi Maxime,
Am 11.04.22 um 09:35 schrieb Maxime Ripard:
Hi Stefan,
On Sun, Apr 10, 2022 at 02:32:02AM +0200, Stefan Wahren wrote:
Am 09.04.22 um 21:25 schrieb Stefan Wahren:
Hi,
today i tested Linux 5.18-rc1 on my Raspberry Pi 400 connected to my
HDMI display (multi_v7_defconfig + CONFIG_ARM_LPAE, firmware:
2021-01-08T14:31:16) and i'm getting these strange errors from
raspberrypi-firmware driver / vc4 during boot:
[ 13.094733] fb0: switching to vc4 from simple
[ 13.110759] Console: switching to colour dummy device 80x30
[ 13.120691] raspberrypi-firmware soc:firmware: Request 0x00030066
returned status 0x80000001
[ 13.120715] vc4-drm gpu: [drm] Couldn't stop firmware display
driver:
-22
This is a new error which was introduced with Linux 5.18-rc1
(c406ad5e4a85
"drm/vc4: Notify the firmware when DRM is in charge"). 0x00030066
stands for
the new firmware property RPI_FIRMWARE_NOTIFY_DISPLAY_DONE. And i
guess the
firmware from January 2021 doesn't support it?
If I remember well, this was added some time in the middle of last year,
so it wouldn't surprise me that your firmware doesn't support it.
It's not really harmful, but it might still be a good idea to upgrade
your firmware. The display pipeline has an unflushable FIFO between
devices and if we don't take special care when disabling all the devices
in that pipeline, we end up with a shift of one pixel for the rest of
the system's life.
We have some code to deal with the transition between the firmware and
the kernel, but we couldn't make it work reliably so we ended up asking
the firmware instead.
So.. Yeah, it's bad if you want to use the displays output, but it not
critical either.
I understand. I think it would be nice to give the user a more helpful
warning how to possible fix this, because we cannot assume that every
system has the latest firmware.
Also i'm not sure if should give this warning once or on every probing
attempt.
while chasing a vchiq performance regression, i was possibly able to
crash the VPU firmware (2021-04-30T13:47:07) during boot of my Raspberry
Pi 3B+ based on 3d7285a335ed + the bcm2835 clock fix. So this is just a
warning, it's not totally harmless:
10.172282] raspberrypi-firmware soc:firmware: Request 0x00030066
returned status 0x80000001
[ 10.172321] vc4-drm soc:gpu: [drm] Couldn't stop firmware display
driver: -22
[ 10.172452] vc4-drm soc:gpu: bound 3f400000.hvs (ops vc4_hvs_ops [vc4])
[ 10.200134] Bluetooth: hci0: BCM4345C0 'brcm/BCM4345C0.hcd' Patch
[ 10.222634] usbcore: registered new interface driver lan78xx
[ 10.225538] raspberrypi-firmware soc:firmware: Request 0x00030066
returned status 0x80000001
[ 10.225563] vc4-drm soc:gpu: [drm] Couldn't stop firmware display
driver: -22
[ 10.225645] vc4-drm soc:gpu: bound 3f400000.hvs (ops
vc4_drm_unregister [vc4])
[ 10.298306] raspberrypi-firmware soc:firmware: Request 0x00030066
returned status 0x80000001
[ 10.298354] vc4-drm soc:gpu: [drm] Couldn't stop firmware display
driver: -22
[ 10.298485] vc4-drm soc:gpu: bound 3f400000.hvs (ops
vc4_drm_unregister [vc4])
[ 10.305977] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 10.306214] brcmfmac mmc1:0001:1: Direct firmware load for
brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.bin failed with error -2
[ 10.311775] raspberrypi-firmware soc:firmware: Request 0x00030066
returned status 0x80000001
[ 10.311808] vc4-drm soc:gpu: [drm] Couldn't stop firmware display
driver: -22
[ 10.311924] vc4-drm soc:gpu: bound 3f400000.hvs (ops
vc4_drm_unregister [vc4])
[ 10.357778] brcmfmac mmc1:0001:1: Direct firmware load for
brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.txt failed with error -2
[ 10.508333] brcmfmac: brcmf_fw_alloc_request: using
brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 10.534262] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0:
Jan 4 2021 19:56:29 version 7.45.229 (617f1f5 CY) FWID 01-2dbd9d2e
[ 10.705127] snd_bcm2835: module is from the staging directory, the
quality is unknown, you have been warned.
[ 10.721668] mc: Linux media interface: v0.10
[ 10.746851] videodev: Linux video capture interface: v2.00
[ 10.783077] bcm2835_mmal_vchiq: module is from the staging directory,
the quality is unknown, you have been warned.
[ 10.813073] bcm2835_v4l2: module is from the staging directory, the
quality is unknown, you have been warned.
[ 11.049270] Bluetooth: hci0: BCM43455 37.4MHz Raspberry Pi 3+
[ 11.049294] Bluetooth: hci0: BCM4345C0 (003.001.025) build 0342
[ 11.837093] ------------[ cut here ]------------
[ 11.837113] WARNING: CPU: 2 PID: 40 at
drivers/firmware/raspberrypi.c:63 rpi_firmware_property_list+0x1ac/0x250
[ 11.837142] Firmware transaction timeout
[ 11.837144] Modules linked in: bcm2835_v4l2(C+) snd_soc_hdmi_codec
bcm2835_mmal_vchiq(C) videobuf2_vmalloc videobuf2_memops videobuf2_v4l2
videobuf2_common videodev mc snd_bcm2835(C+) brcmfmac brcmutil vc4
microchip snd_soc_core ac97_bus snd_pcm_dmaengine snd_pcm sha256_generic
libsha256 lan78xx sha256_arm cfg80211 snd_timer hci_uart snd btbcm
soundcore crc32_arm_ce drm_cma_helper bluetooth ecdh_generic
raspberrypi_hwmon ecc libaes bcm2835_thermal vchiq(C)
[ 11.837252] CPU: 2 PID: 40 Comm: kworker/u8:1 Tainted: G
C 5.18.0-rc7-00121-g3d7285a335ed-dirty #49
[ 11.837260] Hardware name: BCM2835
[ 11.837265] Workqueue: events_unbound deferred_probe_work_func
[ 11.837286] unwind_backtrace from show_stack+0x10/0x14
[ 11.837300] show_stack from dump_stack_lvl+0x40/0x4c
[ 11.837313] dump_stack_lvl from __warn+0x144/0x148
[ 11.837326] __warn from warn_slowpath_fmt+0x70/0xb4
[ 11.837336] warn_slowpath_fmt from
rpi_firmware_property_list+0x1ac/0x250
[ 11.837347] rpi_firmware_property_list from
rpi_firmware_property+0x60/0x8c
[ 11.837358] rpi_firmware_property from vc4_drm_bind+0x150/0x234 [vc4]
[ 11.837423] vc4_drm_bind [vc4] from
try_to_bring_up_aggregate_device+0x15c/0x1b4
[ 11.837469] try_to_bring_up_aggregate_device from
component_master_add_with_match+0xc4/0xf8
[ 11.837479] component_master_add_with_match from
vc4_platform_drm_probe+0xa8/0xcc [vc4]
[ 11.837523] vc4_platform_drm_probe [vc4] from platform_probe+0x5c/0xb8
[ 11.837568] platform_probe from really_probe+0xc0/0x278
[ 11.837578] really_probe from __driver_probe_device+0x84/0xe4
[ 11.837590] __driver_probe_device from driver_probe_device+0x34/0xd4
[ 11.837601] driver_probe_device from __device_attach_driver+0x88/0xb4
[ 11.837612] __device_attach_driver from bus_for_each_drv+0x54/0xb4
[ 11.837624] bus_for_each_drv from __device_attach+0xdc/0x148
[ 11.837635] __device_attach from bus_probe_device+0x84/0x8c
[ 11.837646] bus_probe_device from deferred_probe_work_func+0x7c/0xa8
[ 11.837657] deferred_probe_work_func from process_one_work+0x228/0x4fc
[ 11.837671] process_one_work from worker_thread+0x40/0x544
[ 11.837682] worker_thread from kthread+0xd8/0xf4
[ 11.837693] kthread from ret_from_fork+0x14/0x2c
[ 11.837702] Exception stack(0xf090dfb0 to 0xf090dff8)
[ 11.837709] dfa0: 00000000
00000000 00000000 00000000
[ 11.837716] dfc0: 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[ 11.837722] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 11.837726] ---[ end trace 0000000000000000 ]---
[ 11.837746] vc4-drm soc:gpu: [drm] Couldn't stop firmware display
driver: -110
[ 11.837846] vc4-drm soc:gpu: bound 3f400000.hvs (ops
vc4_drm_unregister [vc4])
[ 12.877131] raspberrypi-clk raspberrypi-clk: Failed to change
fw-clk-arm frequency: -110
[ 13.917073] hwmon hwmon1: Failed to get throttled (-110)
Best regards
Stefan
Maxime
