[PATCH 10/12] drm/amdgpu: add support for processing IH ring 1 & 2

[Christian König]

Previously we only added the ring buffer memory, now add the handling as
well.

Signed-off-by: Christian König <christian.koe...@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 32 ++++++++++++++++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h |  4 +++-
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 9d40ff27f0b5..2334e85b92f5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -193,6 +193,36 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg)
        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_callback);
+}
+
+/**
+ * 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_irq_callback);
+}
+
 /**
  * amdgpu_msi_ok - check whether MSI functionality is enabled
  *
@@ -258,6 +288,8 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
        }
 
        INIT_WORK(&adev->reset_work, amdgpu_irq_reset_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);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
index 7e06fa64321a..c27decfda494 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.h
@@ -89,7 +89,9 @@ struct amdgpu_irq {
 
        /* interrupt rings */
        struct amdgpu_ih_ring           ih, ih1, ih2;
-       const struct amdgpu_ih_funcs    *ih_funcs;
+       const struct amdgpu_ih_funcs    *ih_funcs;
+       struct work_struct              ih1_work, ih2_work;
+       struct amdgpu_irq_src           self_irq;
 
        /* gen irq stuff */
        struct irq_domain               *domain; /* GPU irq controller domain */
-- 
2.14.1

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