drm/amdkfd: Add interrupt handling module

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / amd / amdkfd / kfd_priv.h

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index f21fccebd75b2bd082a6b3c6c45aa6cd7353ef5d..34c766208e8a7002b67fe85237cce15a568cee5c 100644 (file)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -161,10 +161,23 @@ struct kfd_dev {
        unsigned int gtt_sa_chunk_size;
        unsigned int gtt_sa_num_of_chunks;
 
+       /* Interrupts */
+       void *interrupt_ring;
+       size_t interrupt_ring_size;
+       atomic_t interrupt_ring_rptr;
+       atomic_t interrupt_ring_wptr;
+       struct work_struct interrupt_work;
+       spinlock_t interrupt_lock;
+
        /* QCM Device instance */
        struct device_queue_manager *dqm;
 
        bool init_complete;
+       /*
+        * Interrupts of interest to KFD are copied
+        * from the HW ring into a SW ring.
+        */
+       bool interrupts_active;
 };
 
 /* KGD2KFD callbacks */
@@ -555,7 +568,11 @@ struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev);
 struct kfd_dev *kfd_topology_enum_kfd_devices(uint8_t idx);
 
 /* Interrupts */
+int kfd_interrupt_init(struct kfd_dev *dev);
+void kfd_interrupt_exit(struct kfd_dev *dev);
 void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry);
+bool enqueue_ih_ring_entry(struct kfd_dev *kfd,        const void *ih_ring_entry);
+bool interrupt_is_wanted(struct kfd_dev *dev, const uint32_t *ih_ring_entry);
 
 /* Power Management */
 void kgd2kfd_suspend(struct kfd_dev *kfd);