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drm/amd/amdgpu: fixing read wrong pf2vf data in SRIOV

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[Why]
This fixes 892deb4826 ("drm/amdgpu: Separate vf2pf work item init from virt data exchange").
we should read pf2vf data based at mman.fw_vram_usage_va after gmc
sw_init. commit 892deb4826 breaks this logic.

[How]
calling amdgpu_virt_exchange_data in amdgpu_virt_init_data_exchange to
set the right base in the right sequence.

v2:
call amdgpu_virt_init_data_exchange after gmc sw_init to make data
exchange workqueue run

v3:
clean up the code logic

v4:
add some comment and make the code more readable

Fixes: 892deb4826 ("drm/amdgpu: Separate vf2pf work item init from virt data exchange")
Signed-off-by: Jingwen Chen <Jingwen.Chen2@amd.com>
Reviewed-by: Horace Chen <horace.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jingwen Chen
2022-01-13 19:06:59 +08:00
committed by Alex Deucher
parent 71b6c4a277
commit 22c16d251a
2 changed files with 8 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@@ -2354,7 +2354,7 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
}
if (amdgpu_sriov_vf(adev))
amdgpu_virt_exchange_data(adev);
amdgpu_virt_init_data_exchange(adev);
r = amdgpu_ib_pool_init(adev);
if (r) {