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drm/amdgpu: Add a read to GFX v9.4.3 ring test
authorLijo Lazar <lijo.lazar@amd.com>
Fri, 20 Oct 2023 06:53:37 +0000 (12:23 +0530)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 26 Oct 2023 23:04:13 +0000 (19:04 -0400)
commit3f69d5860f5beeb7714922b0c4a653db7d667190
treead9d8e2ca7d11830ed545a00c5861fad0df092ectree
parent5bd8e05fe203aa33721cf301a6883b28493f73abcommit | diff
drm/amdgpu: Add a read to GFX v9.4.3 ring test

Issue a read to confirm the register write before ringing doorbell. With
multiple XCCs there is chance for race condition.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c diff | blob | history
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