[Bug 220653] New: RX6700XT fails to do S3 resume, then hangup on recovery

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=220653

            Bug ID: 220653
           Summary: RX6700XT fails to do S3 resume, then hangup on
                    recovery
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: blade@debian.org
        Regression: No

Created attachment 308784
  --> https://bugzilla.kernel.org/attachment.cgi?id=308784&action=edit
S3 suspend failing for RX6700XT

Symptoms:

you try a suspend-to-rum (ACPI-S3) and the system simply doesn't do it, instead
some devices (hdd) wake up again after a few seconds but the system is "in the
limbo", semi-dead, only sync and reboot with magic-sysrq s/u/b works. See
attachment.


Good/bad versions:

Kernels v6.16.x were fine
Kernels v6.17.0-rc<something> started failing


Results of bi-secting: see below.

I didn't want to start bitching around but seriously, for me this kind of
suspend-resume-freeze-fu*up-in-a-RELEASED-kernel has happened a couple of times
now. Isn't there any kind of quality control in AMD's integration team for the
"older" RX 6xxx generation?


± git bisect bad
440cec4ca1c242d72e309a801995584a55af25c6 is the first bad commit
commit 440cec4ca1c242d72e309a801995584a55af25c6 (HEAD)
Author: Lijo Lazar <lijo.lazar@amd.com>
Date:   Fri Jul 18 18:50:58 2025 +0530

    drm/amdgpu: Wait for bootloader after PSPv11 reset

    Some PSPv11 SOCs take a longer time for PSP based mode-1 reset. Instead
    of checking for C2PMSG_33 status, add the callback wait_for_bootloader.
    Wait for bootloader to be back to steady state is already part of the
    generic mode-1 reset flow. Increase the retry count for bootloader wait
    and also fix the mask to prevent fake pass.

    Fixes: 8345a71fc54b ("drm/amdgpu: Add more checks to PSP mailbox")
    Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4531
    Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
    Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    (cherry picked from commit 32f73741d6ee41fd5db8791c1163931e313d0fdc)

 drivers/gpu/drm/amd/amdgpu/psp_v11_0.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

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