diff options
| author | Samuel Zhang <[email protected]> | 2025-05-08 06:36:35 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-06-18 16:19:15 +0000 |
| commit | 4108c2be12ebe78accb40d43f4713a7cc481b18a (patch) | |
| tree | c3c8e9f0679ee0968f0262d9cb43418b7aa2413e /drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | |
| parent | drm/amdgpu: enable pdb0 for hibernation on SRIOV (diff) | |
| download | kernel-4108c2be12ebe78accb40d43f4713a7cc481b18a.tar.gz kernel-4108c2be12ebe78accb40d43f4713a7cc481b18a.zip | |
drm/amdgpu: fix fence fallback timer expired error
IH is not working after switching a new gpu index for the first time.
During VM resume, QEMU programming of VF MSIX table (register GFXMSIX_VECT0_ADDR_LO)
may not work.The access could be blocked by nBIF protection as VF isn't in
exclusive access mode. Exclusive access is enabled now, disable/enable MSIX
so that QEMU reprograms MSIX table.
call amdgpu_restore_msix on resume to restore msix table.
Signed-off-by: Samuel Zhang <[email protected]>
Acked-by: Lijo Lazar <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h index 04c0b4fa17a4..9f0417456abd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h @@ -146,5 +146,6 @@ void amdgpu_irq_gpu_reset_resume_helper(struct amdgpu_device *adev); int amdgpu_irq_add_domain(struct amdgpu_device *adev); void amdgpu_irq_remove_domain(struct amdgpu_device *adev); unsigned amdgpu_irq_create_mapping(struct amdgpu_device *adev, unsigned src_id); +void amdgpu_restore_msix(struct amdgpu_device *adev); #endif |