diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/tonga_ih.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/tonga_ih.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c index 5ed00692618e..aa4e320e31f8 100644 --- a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c +++ b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c @@ -227,8 +227,23 @@ static u32 tonga_ih_get_wptr(struct amdgpu_device *adev) */ static bool tonga_ih_prescreen_iv(struct amdgpu_device *adev) { - /* Process all interrupts */ - return true; + u32 ring_index = adev->irq.ih.rptr >> 2; + u16 pasid; + + switch (le32_to_cpu(adev->irq.ih.ring[ring_index]) & 0xff) { + case 146: + case 147: + pasid = le32_to_cpu(adev->irq.ih.ring[ring_index + 2]) >> 16; + if (!pasid || amdgpu_vm_pasid_fault_credit(adev, pasid)) + return true; + break; + default: + /* Not a VM fault */ + return true; + } + + adev->irq.ih.rptr += 16; + return false; } /** |