drm/amdgpu: send IVs to the KFD only after processing them v3

This allows us to filter out VM faults in the GMC code.

v2: don't filter out all faults
v3: fix copy&paste typo, send all IV to the KFD, don't change message level

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 17 insertions, 21 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 6b6524f04ce0..79b6f456f2c5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -149,9 +149,6 @@ static void amdgpu_irq_callback(struct amdgpu_device *adev,
         if (!amdgpu_ih_prescreen_iv(adev))
                 return;
 
-        /* Before dispatching irq to IP blocks, send it to amdkfd */
-        amdgpu_amdkfd_interrupt(adev, (const void *) &ih->ring[ring_index]);
-
         entry.iv_entry = (const uint32_t *)&ih->ring[ring_index];
         amdgpu_ih_decode_iv(adev, &entry);
 
@@ -371,39 +368,38 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
         unsigned client_id = entry->client_id;
         unsigned src_id = entry->src_id;
         struct amdgpu_irq_src *src;
+        bool handled = false;
         int r;
 
         trace_amdgpu_iv(entry);
 
         if (client_id >= AMDGPU_IRQ_CLIENTID_MAX) {
                 DRM_DEBUG("Invalid client_id in IV: %d\n", client_id);
-                return;
-        }
 
-        if (src_id >= AMDGPU_MAX_IRQ_SRC_ID) {
+        } else  if (src_id >= AMDGPU_MAX_IRQ_SRC_ID) {
                 DRM_DEBUG("Invalid src_id in IV: %d\n", src_id);
-                return;
-        }
 
-        if (adev->irq.virq[src_id]) {
+        } else if (adev->irq.virq[src_id]) {
                 generic_handle_irq(irq_find_mapping(adev->irq.domain, src_id));
-        } else {
-                if (!adev->irq.client[client_id].sources) {
-                        DRM_DEBUG("Unregistered interrupt client_id: %d src_id: %d\n",
-                                  client_id, src_id);
-                        return;
-                }
 
-                src = adev->irq.client[client_id].sources[src_id];
-                if (!src) {
-                        DRM_DEBUG("Unhandled interrupt src_id: %d\n", src_id);
-                        return;
-                }
+        } else if (!adev->irq.client[client_id].sources) {
+                DRM_DEBUG("Unregistered interrupt client_id: %d src_id: %d\n",
+                          client_id, src_id);
 
+        } else if ((src = adev->irq.client[client_id].sources[src_id])) {
                 r = src->funcs->process(adev, src, entry);
-                if (r)
+                if (r < 0)
                         DRM_ERROR("error processing interrupt (%d)\n", r);
+                else if (r)
+                        handled = true;
+
+        } else {
+                DRM_DEBUG("Unhandled interrupt src_id: %d\n", src_id);
         }
+
+        /* Send it to amdkfd as well if it isn't already handled */
+        if (!handled)
+                amdgpu_amdkfd_interrupt(adev, entry->iv_entry);
 }
 
 /**