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Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h')
-rw-r--r--drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h
new file mode 100644
index 000000000..b5b6e7031
--- /dev/null
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __DPU_CORE_IRQ_H__
+#define __DPU_CORE_IRQ_H__
+
+#include "dpu_kms.h"
+#include "dpu_hw_interrupts.h"
+
+/**
+ * dpu_core_irq_preinstall - perform pre-installation of core IRQ handler
+ * @kms: MSM KMS handle
+ * @return: none
+ */
+void dpu_core_irq_preinstall(struct msm_kms *kms);
+
+/**
+ * dpu_core_irq_uninstall - uninstall core IRQ handler
+ * @kms: MSM KMS handle
+ * @return: none
+ */
+void dpu_core_irq_uninstall(struct msm_kms *kms);
+
+/**
+ * dpu_core_irq - core IRQ handler
+ * @kms: MSM KMS handle
+ * @return: interrupt handling status
+ */
+irqreturn_t dpu_core_irq(struct msm_kms *kms);
+
+/**
+ * dpu_core_irq_read - IRQ helper function for reading IRQ status
+ * @dpu_kms: DPU handle
+ * @irq_idx: irq index
+ * @return: non-zero if irq detected; otherwise no irq detected
+ */
+u32 dpu_core_irq_read(
+ struct dpu_kms *dpu_kms,
+ int irq_idx);
+
+/**
+ * dpu_core_irq_register_callback - For registering callback function on IRQ
+ * interrupt
+ * @dpu_kms: DPU handle
+ * @irq_idx: irq index
+ * @irq_cb: IRQ callback funcion.
+ * @irq_arg: IRQ callback argument.
+ * @return: 0 for success registering callback, otherwise failure
+ *
+ * This function supports registration of multiple callbacks for each interrupt.
+ */
+int dpu_core_irq_register_callback(
+ struct dpu_kms *dpu_kms,
+ int irq_idx,
+ void (*irq_cb)(void *arg, int irq_idx),
+ void *irq_arg);
+
+/**
+ * dpu_core_irq_unregister_callback - For unregistering callback function on IRQ
+ * interrupt
+ * @dpu_kms: DPU handle
+ * @irq_idx: irq index
+ * @return: 0 for success registering callback, otherwise failure
+ *
+ * This function supports registration of multiple callbacks for each interrupt.
+ */
+int dpu_core_irq_unregister_callback(
+ struct dpu_kms *dpu_kms,
+ int irq_idx);
+
+/**
+ * dpu_debugfs_core_irq_init - register core irq debugfs
+ * @dpu_kms: pointer to kms
+ * @parent: debugfs directory root
+ */
+void dpu_debugfs_core_irq_init(struct dpu_kms *dpu_kms,
+ struct dentry *parent);
+
+#endif /* __DPU_CORE_IRQ_H__ */