1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. 3 */ 4 5 #ifndef _DPU_HW_INTERRUPTS_H 6 #define _DPU_HW_INTERRUPTS_H 7 8 #include <linux/types.h> 9 10 #include "dpu_hwio.h" 11 #include "dpu_hw_catalog.h" 12 #include "dpu_hw_util.h" 13 #include "dpu_hw_mdss.h" 14 15 /* When making changes be sure to sync with dpu_intr_set */ 16 enum dpu_hw_intr_reg { 17 MDP_SSPP_TOP0_INTR, 18 MDP_SSPP_TOP0_INTR2, 19 MDP_SSPP_TOP0_HIST_INTR, 20 MDP_INTF0_INTR, 21 MDP_INTF1_INTR, 22 MDP_INTF2_INTR, 23 MDP_INTF3_INTR, 24 MDP_INTF4_INTR, 25 MDP_INTF5_INTR, 26 MDP_AD4_0_INTR, 27 MDP_AD4_1_INTR, 28 MDP_INTF0_7xxx_INTR, 29 MDP_INTF1_7xxx_INTR, 30 MDP_INTF2_7xxx_INTR, 31 MDP_INTF3_7xxx_INTR, 32 MDP_INTF4_7xxx_INTR, 33 MDP_INTF5_7xxx_INTR, 34 MDP_INTR_MAX, 35 }; 36 37 #define DPU_IRQ_IDX(reg_idx, offset) (reg_idx * 32 + offset) 38 39 /** 40 * struct dpu_hw_intr: hw interrupts handling data structure 41 * @hw: virtual address mapping 42 * @ops: function pointer mapping for IRQ handling 43 * @cache_irq_mask: array of IRQ enable masks reg storage created during init 44 * @save_irq_status: array of IRQ status reg storage created during init 45 * @total_irqs: total number of irq_idx mapped in the hw_interrupts 46 * @irq_lock: spinlock for accessing IRQ resources 47 * @irq_cb_tbl: array of IRQ callbacks 48 */ 49 struct dpu_hw_intr { 50 struct dpu_hw_blk_reg_map hw; 51 u32 cache_irq_mask[MDP_INTR_MAX]; 52 u32 *save_irq_status; 53 u32 total_irqs; 54 spinlock_t irq_lock; 55 unsigned long irq_mask; 56 57 struct { 58 void (*cb)(void *arg, int irq_idx); 59 void *arg; 60 atomic_t count; 61 } irq_tbl[]; 62 }; 63 64 /** 65 * dpu_hw_intr_init(): Initializes the interrupts hw object 66 * @addr: mapped register io address of MDP 67 * @m : pointer to mdss catalog data 68 */ 69 struct dpu_hw_intr *dpu_hw_intr_init(void __iomem *addr, 70 const struct dpu_mdss_cfg *m); 71 72 /** 73 * dpu_hw_intr_destroy(): Cleanup interrutps hw object 74 * @intr: pointer to interrupts hw object 75 */ 76 void dpu_hw_intr_destroy(struct dpu_hw_intr *intr); 77 #endif 78