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path: root/drivers/gpu/drm/amd/amdgpu/cik_ih.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/cik_ih.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/cik_ih.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/cik_ih.c b/drivers/gpu/drm/amd/amdgpu/cik_ih.c
index 07d3d895da10..a870b354e3f7 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_ih.c
@@ -237,8 +237,23 @@ static u32 cik_ih_get_wptr(struct amdgpu_device *adev)
*/
static bool cik_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;
}
/**