drm/amdgpu: Correct the loss of aca bank reg info

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[ Upstream commit d8442bcad0 ]

By polling, poll ACA bank count to ensure that valid
ACA bank reg info can be obtained

v2: add corresponding delay before send msg to SMU to query mca bank info
(Stanley)

v3: the loop cannot exit. (Thomas)

v4: remove amdgpu_aca_clear_bank_count. (Kevin)

v5: continuously inject ce. If a creation interruption
occurs at this time, bank reg info will be lost. (Thomas)
v5: each cycle is delayed by 100ms. (Tao)

Signed-off-by: Ce Sun <cesun102@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Ce Sun 2025-08-20 17:18:57 +08:00 • committed by Greg Kroah-Hartman

parent daa59c1c08

commit 582d38cc9f

4 changed files with 29 additions and 32 deletions

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50

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

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5

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

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1

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

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5

drivers/gpu/drm/amd/amdgpu/umc_v12_0.c

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