Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Jeykumar Sankaran | 162 | 98.78% | 1 | 50.00% |
Jordan Crouse | 2 | 1.22% | 1 | 50.00% |
Total | 164 | 2 |
/* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only version 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #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 * @dpu_kms: DPU handle * @return: none */ void dpu_core_irq_preinstall(struct dpu_kms *dpu_kms); /** * dpu_core_irq_uninstall - uninstall core IRQ handler * @dpu_kms: DPU handle * @return: none */ void dpu_core_irq_uninstall(struct dpu_kms *dpu_kms); /** * dpu_core_irq - core IRQ handler * @dpu_kms: DPU handle * @return: interrupt handling status */ irqreturn_t dpu_core_irq(struct dpu_kms *dpu_kms); /** * dpu_core_irq_idx_lookup - IRQ helper function for lookup irq_idx from HW * interrupt mapping table. * @dpu_kms: DPU handle * @intr_type: DPU HW interrupt type for lookup * @instance_idx: DPU HW block instance defined in dpu_hw_mdss.h * @return: irq_idx or -EINVAL when fail to lookup */ int dpu_core_irq_idx_lookup( struct dpu_kms *dpu_kms, enum dpu_intr_type intr_type, uint32_t instance_idx); /** * dpu_core_irq_enable - IRQ helper function for enabling one or more IRQs * @dpu_kms: DPU handle * @irq_idxs: Array of irq index * @irq_count: Number of irq_idx provided in the array * @return: 0 for success enabling IRQ, otherwise failure * * This function increments count on each enable and decrements on each * disable. Interrupts is enabled if count is 0 before increment. */ int dpu_core_irq_enable( struct dpu_kms *dpu_kms, int *irq_idxs, uint32_t irq_count); /** * dpu_core_irq_disable - IRQ helper function for disabling one of more IRQs * @dpu_kms: DPU handle * @irq_idxs: Array of irq index * @irq_count: Number of irq_idx provided in the array * @return: 0 for success disabling IRQ, otherwise failure * * This function increments count on each enable and decrements on each * disable. Interrupts is disabled if count is 0 after decrement. */ int dpu_core_irq_disable( struct dpu_kms *dpu_kms, int *irq_idxs, uint32_t irq_count); /** * dpu_core_irq_read - IRQ helper function for reading IRQ status * @dpu_kms: DPU handle * @irq_idx: irq index * @clear: True to clear the irq after read * @return: non-zero if irq detected; otherwise no irq detected */ u32 dpu_core_irq_read( struct dpu_kms *dpu_kms, int irq_idx, bool clear); /** * dpu_core_irq_register_callback - For registering callback function on IRQ * interrupt * @dpu_kms: DPU handle * @irq_idx: irq index * @irq_cb: IRQ callback structure, containing callback function * and argument. Passing NULL for irq_cb will unregister * the callback for the given irq_idx * This must exist until un-registration. * @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, struct dpu_irq_callback *irq_cb); /** * dpu_core_irq_unregister_callback - For unregistering callback function on IRQ * interrupt * @dpu_kms: DPU handle * @irq_idx: irq index * @irq_cb: IRQ callback structure, containing callback function * and argument. Passing NULL for irq_cb will unregister * the callback for the given irq_idx * This must match with registration. * @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, struct dpu_irq_callback *irq_cb); /** * 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__ */
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