drm/amdgpu/gfx8: Fixup IP block soft reset

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Always reset everything in the GFX block at once as opposed
to trying to figure out which blocks need to be reset based
on their busy flags. This makes the reset more robust and
predictable.

Increase delays when waiting for the GRBM and SRBM soft reset
to complete.

Call IP block suspend/resume to ensure correct operation now
that we no longer have pre/post_soft_reset().

Call clock/powergating functions, otherwise power consumption
will increase after the GFX IP block is soft reset.

Return correct error code to signal failure in case not all
rings are functional after the IP block is soft reset.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Timur Kristóf 2026-06-17 21:14:27 +02:00 • committed by Alex Deucher

parent 01f4b82944

commit 459813d418

2 changed files with 34 additions and 11 deletions

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2

drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h

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43

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

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