Created attachment 290329 [details]
lspci -vv

With commit "afaff825e3a436f9d1e3986530133b1c91b54cd1" runtime pm seems to be broken. Reverting it on top of the 5.7 branch fixes the issue. Problem seems to occur when the GPU is getting accessed after it was runtime suspended.

git bisect log:

git bisect start
# bad: [a92b984a110863b42a3abf32e3f049b02b19e350] clk: samsung:
exynos5433: Add IGNORE_UNUSED flag to sclk_i2s1
git bisect bad a92b984a110863b42a3abf32e3f049b02b19e350
# good: [4da858c086433cd012c0bb16b5921f6fafe3f803] Merge branch
'linux-5.7' of git://github.com/skeggsb/linux into drm-fixes
git bisect good 4da858c086433cd012c0bb16b5921f6fafe3f803
# good: [d5dfe4f1b44ed532653c2335267ad9599c8a698e] Merge tag
'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
git bisect good d5dfe4f1b44ed532653c2335267ad9599c8a698e
# good: [b24e451cfb8c33ef5b8b4a80e232706b089914fb] ipv6: fix
IPV6_ADDRFORM operation logic
git bisect good b24e451cfb8c33ef5b8b4a80e232706b089914fb
# good: [d843ffbce812742986293f974d55ba404e91872f] nvmet: fix memory
leak when removing namespaces and controllers concurrently
git bisect good d843ffbce812742986293f974d55ba404e91872f
# good: [be66f10a60e3ec0b589898f78a428bcb34095730] staging: wfx: fix
output of rx_stats on big endian hosts
git bisect good be66f10a60e3ec0b589898f78a428bcb34095730
# good: [a4482984c41f5cc1d217aa189fe51bbbc0500f98] s390/qdio:
consistently restore the IRQ handler
git bisect good a4482984c41f5cc1d217aa189fe51bbbc0500f98
# good: [bec32a54a4de62b46466f4da1beb9ddd42db81b8] f2fs: fix potential
use-after-free issue
git bisect good bec32a54a4de62b46466f4da1beb9ddd42db81b8
# bad: [044aaaa8b1b15adb397ce423a6d97920a46b3893] habanalabs: increase
timeout during reset
git bisect bad 044aaaa8b1b15adb397ce423a6d97920a46b3893
# good: [6fe8ed270763a6a2e350bf37eee0f3857482ed48] arm64: dts: qcom:
db820c: Fix invalid pm8994 supplies
git bisect good 6fe8ed270763a6a2e350bf37eee0f3857482ed48
# good: [363e8bfc96b4e9d9e0a885408cecaf23df468523] tty: n_gsm: Fix
waking up upper tty layer when room available
git bisect good 363e8bfc96b4e9d9e0a885408cecaf23df468523
# bad: [afaff825e3a436f9d1e3986530133b1c91b54cd1] PCI/PM: Assume ports
without DLL Link Active train links in 100 ms
git bisect bad afaff825e3a436f9d1e3986530133b1c91b54cd1
# good: [be0ed15d88c65de0e28ff37a3b242e65a782fd98] HID: Add quirks for
Trust Panora Graphic Tablet
git bisect good be0ed15d88c65de0e28ff37a3b242e65a782fd98
# first bad commit: [afaff825e3a436f9d1e3986530133b1c91b54cd1] PCI/PM:
Assume ports without DLL Link Active train links in 100 ms