drm/amdgpu/gfx12.1: Don't fetch default register values from hardware in mqd init

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1. We can't assure the fetched values are always default register values.
   Observing non-zero cp_hqd_pq_rptr in mes_v12_1_self_test->init_mqd()
   where no GRBM_GFX_CNTL is specified.

2. See commit fc3c139cf0 ("drm/amdgpu/gfx12: don't read registers in mqd init").

Signed-off-by: Lang Yu <lang.yu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Lang Yu 2025-08-19 18:54:30 +08:00 • committed by Alex Deucher

parent e291729873

commit 80be8286d0

1 changed files with 16 additions and 8 deletions

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drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c

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