drm/amdgpu/gfx8: Enable IP block soft reset as a GPU recovery method

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Enable IP block soft reset as a GPU recovery method for GFX8
graphics and compute rings.

Tested with the "hard_reset_cp_wait" test case from the
Hang Test Suite created by Natalie Vock and Konstantin Seurer.
This Vulkan testcase waits for an event that never occurs,
effectively a WAIT_REG_MEM packet that intentionally hangs.
IP block soft reset can resolve that hang and allow
the rest of the system to move on and keep functioning
without needing a full ASIC reset.

Tested on the following chips:

Polaris 10 (Radeon RX 570)
Polaris 11 (Radeon RX 560)
Polaris 12 (Radeon RX 550)
Fiji (Radeon R9 Nano)
Tonga (Radeon R9 380X)
Carrizo (A8-9600)

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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Timur Kristóf 2026-06-17 21:14:28 +02:00 • committed by Alex Deucher

parent 459813d418

commit 3ad38c2601

1 changed files with 5 additions and 0 deletions

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

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