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path: root/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c75
1 files changed, 47 insertions, 28 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index b7968f426862..af4c3b1af322 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -131,27 +131,6 @@ void amdgpu_irq_disable_all(struct amdgpu_device *adev)
}
/**
- * amdgpu_irq_callback - callback from the IH ring
- *
- * @adev: amdgpu device pointer
- * @ih: amdgpu ih ring
- *
- * Callback from IH ring processing to handle the entry at the current position
- * and advance the read pointer.
- */
-static void amdgpu_irq_callback(struct amdgpu_device *adev,
- struct amdgpu_ih_ring *ih)
-{
- u32 ring_index = ih->rptr >> 2;
- struct amdgpu_iv_entry entry;
-
- entry.iv_entry = (const uint32_t *)&ih->ring[ring_index];
- amdgpu_ih_decode_iv(adev, &entry);
-
- amdgpu_irq_dispatch(adev, &entry);
-}
-
-/**
* amdgpu_irq_handler - IRQ handler
*
* @irq: IRQ number (unused)
@@ -168,13 +147,43 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg)
struct amdgpu_device *adev = dev->dev_private;
irqreturn_t ret;
- ret = amdgpu_ih_process(adev, &adev->irq.ih, amdgpu_irq_callback);
+ ret = amdgpu_ih_process(adev, &adev->irq.ih);
if (ret == IRQ_HANDLED)
pm_runtime_mark_last_busy(dev->dev);
return ret;
}
/**
+ * amdgpu_irq_handle_ih1 - kick of processing for IH1
+ *
+ * @work: work structure in struct amdgpu_irq
+ *
+ * Kick of processing IH ring 1.
+ */
+static void amdgpu_irq_handle_ih1(struct work_struct *work)
+{
+ struct amdgpu_device *adev = container_of(work, struct amdgpu_device,
+ irq.ih1_work);
+
+ amdgpu_ih_process(adev, &adev->irq.ih1);
+}
+
+/**
+ * amdgpu_irq_handle_ih2 - kick of processing for IH2
+ *
+ * @work: work structure in struct amdgpu_irq
+ *
+ * Kick of processing IH ring 2.
+ */
+static void amdgpu_irq_handle_ih2(struct work_struct *work)
+{
+ struct amdgpu_device *adev = container_of(work, struct amdgpu_device,
+ irq.ih2_work);
+
+ amdgpu_ih_process(adev, &adev->irq.ih2);
+}
+
+/**
* amdgpu_msi_ok - check whether MSI functionality is enabled
*
* @adev: amdgpu device pointer (unused)
@@ -238,6 +247,9 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
amdgpu_hotplug_work_func);
}
+ INIT_WORK(&adev->irq.ih1_work, amdgpu_irq_handle_ih1);
+ INIT_WORK(&adev->irq.ih2_work, amdgpu_irq_handle_ih2);
+
adev->irq.installed = true;
r = drm_irq_install(adev->ddev, adev->ddev->pdev->irq);
if (r) {
@@ -359,15 +371,22 @@ int amdgpu_irq_add_id(struct amdgpu_device *adev,
* Dispatches IRQ to IP blocks.
*/
void amdgpu_irq_dispatch(struct amdgpu_device *adev,
- struct amdgpu_iv_entry *entry)
+ struct amdgpu_ih_ring *ih)
{
- unsigned client_id = entry->client_id;
- unsigned src_id = entry->src_id;
+ u32 ring_index = ih->rptr >> 2;
+ struct amdgpu_iv_entry entry;
+ unsigned client_id, src_id;
struct amdgpu_irq_src *src;
bool handled = false;
int r;
- trace_amdgpu_iv(entry);
+ entry.iv_entry = (const uint32_t *)&ih->ring[ring_index];
+ amdgpu_ih_decode_iv(adev, &entry);
+
+ trace_amdgpu_iv(ih - &adev->irq.ih, &entry);
+
+ client_id = entry.client_id;
+ src_id = entry.src_id;
if (client_id >= AMDGPU_IRQ_CLIENTID_MAX) {
DRM_DEBUG("Invalid client_id in IV: %d\n", client_id);
@@ -383,7 +402,7 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
client_id, src_id);
} else if ((src = adev->irq.client[client_id].sources[src_id])) {
- r = src->funcs->process(adev, src, entry);
+ r = src->funcs->process(adev, src, &entry);
if (r < 0)
DRM_ERROR("error processing interrupt (%d)\n", r);
else if (r)
@@ -395,7 +414,7 @@ void amdgpu_irq_dispatch(struct amdgpu_device *adev,
/* Send it to amdkfd as well if it isn't already handled */
if (!handled)
- amdgpu_amdkfd_interrupt(adev, entry->iv_entry);
+ amdgpu_amdkfd_interrupt(adev, entry.iv_entry);
}
/**