diff options
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.h | 80 |
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__ */ |