[Bug 204227] Visual artefacts and crash from suspend on amdgpu

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=204227

--- Comment #3 from dolohow (dolohow at outlook.com) ---
Well, that took me some time...

Looks like this is the cause...

005440066f929ba0dca8f4e0aebfbf8daac592cc is the first bad commit
commit 005440066f929ba0dca8f4e0aebfbf8daac592cc
Author: Huang Rui <ray.huang at amd.com>
Date:   Wed Mar 13 20:21:00 2019 +0800

    drm/amdgpu: enable gfxoff again on raven series (v2)

    This patch enables gfxoff and stutter mode again, since we take more
testing on
    raven series. For raven2 and picasso, we can enable it directly. And for
raven,
    we need check the RLC/SMC ucode version cannot be less than #531/0x1e45.

    v2: add smc version checking for raven.

    Signed-off-by: Huang Rui <ray.huang at amd.com>
    Reviewed-by: Alex Deucher <alexander.deucher at amd.com> (v1)
    Tested-by: Likun Gao <Likun.Gao at amd.com> (v2)
    Signed-off-by: Alex Deucher <alexander.deucher at amd.com>

 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c          |  2 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c             |  4 ++--
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c               | 21 +++++++++++++++++++++
 drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c   | 13 ++++---------
 drivers/gpu/drm/amd/powerplay/smumgr/smu10_smumgr.c |  4 ++++
 5 files changed, 33 insertions(+), 11 deletions(-)

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