| /* Copyright (c) 2014-2016, 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 MDSS_MDP_ROTATOR_INTERNAL_H |
| #define MDSS_MDP_ROTATOR_INTERNAL_H |
| |
| #include <linux/list.h> |
| #include <linux/file.h> |
| #include <linux/mdss_rotator.h> |
| #include <linux/mutex.h> |
| #include <linux/types.h> |
| #include <linux/cdev.h> |
| |
| #include "mdss_mdp.h" |
| |
| /* |
| * Defining characteristics about rotation work, that has corresponding |
| * fmt and roi checks in open session |
| */ |
| #define MDSS_MDP_DEFINING_FLAG_BITS MDP_ROTATION_90 |
| |
| struct mdss_rot_entry; |
| struct mdss_rot_perf; |
| |
| enum mdss_rotator_clk_type { |
| MDSS_CLK_ROTATOR_AHB, |
| MDSS_CLK_ROTATOR_CORE, |
| MDSS_CLK_ROTATOR_END_IDX, |
| }; |
| |
| /* |
| * placeholder for performance profiling |
| * or debug support, not used currently |
| */ |
| struct mdss_rot_entry_cb_intf { |
| void (*pre_commit)(struct mdss_rot_entry *entry, void *data); |
| void (*post_commit)(struct mdss_rot_entry *entry, |
| void *data, int status); |
| }; |
| |
| struct mdss_rot_timeline { |
| struct mutex lock; |
| struct mdss_timeline *timeline; |
| u32 next_value; |
| char fence_name[32]; |
| }; |
| |
| struct mdss_rot_hw_resource { |
| struct mdss_mdp_ctl *ctl; |
| struct mdss_mdp_mixer *mixer; |
| struct mdss_mdp_pipe *pipe; |
| struct mdss_mdp_writeback *wb; |
| u32 pipe_id; |
| u32 wb_id; |
| |
| u32 pending_count; |
| struct mdss_rot_entry *workload; |
| }; |
| |
| struct mdss_rot_queue { |
| struct workqueue_struct *rot_work_queue; |
| struct mdss_rot_timeline timeline; |
| |
| struct mutex hw_lock; |
| struct mdss_rot_hw_resource *hw; |
| }; |
| |
| struct mdss_rot_entry_container { |
| struct list_head list; |
| u32 flags; |
| u32 count; |
| atomic_t pending_count; |
| struct mdss_rot_entry *entries; |
| }; |
| |
| struct mdss_rot_entry { |
| struct mdp_rotation_item item; |
| struct work_struct commit_work; |
| |
| struct mdss_rot_queue *queue; |
| struct mdss_rot_entry_container *request; |
| |
| struct mdss_mdp_data src_buf; |
| struct mdss_mdp_data dst_buf; |
| |
| struct mdss_fence *input_fence; |
| |
| int output_fence_fd; |
| struct mdss_fence *output_fence; |
| bool output_signaled; |
| |
| u32 dnsc_factor_w; |
| u32 dnsc_factor_h; |
| |
| struct mdss_rot_entry_cb_intf intf; |
| void *intf_data; |
| |
| struct mdss_rot_perf *perf; |
| bool work_assigned; /* Used when cleaning up work_distribution */ |
| }; |
| |
| struct mdss_rot_perf { |
| struct list_head list; |
| struct mdp_rotation_config config; |
| unsigned long clk_rate; |
| u64 bw; |
| struct mutex work_dis_lock; |
| u32 *work_distribution; |
| int last_wb_idx; /* last known wb index, used when above count is 0 */ |
| }; |
| |
| struct mdss_rot_file_private { |
| struct list_head list; |
| |
| struct mutex req_lock; |
| struct list_head req_list; |
| |
| struct mutex perf_lock; |
| struct list_head perf_list; |
| |
| struct file *file; |
| }; |
| |
| struct mdss_rot_bus_data_type { |
| struct msm_bus_scale_pdata *bus_scale_pdata; |
| u32 bus_hdl; |
| u32 curr_bw_uc_idx; |
| u64 curr_quota_val; |
| }; |
| |
| struct mdss_rot_mgr { |
| struct mutex lock; |
| |
| atomic_t device_suspended; |
| |
| u32 session_id_generator; |
| |
| struct platform_device *pdev; |
| |
| dev_t dev_num; |
| struct cdev cdev; |
| struct class *class; |
| struct device *device; |
| |
| /* |
| * mangaing rotation queues, depends on |
| * how many hw pipes available on the system |
| */ |
| int queue_count; |
| struct mdss_rot_queue *queues; |
| |
| struct mutex file_lock; |
| /* |
| * managing all the open file sessions to bw calculations, |
| * and resource clean up during suspend |
| */ |
| struct list_head file_list; |
| |
| struct mutex bus_lock; |
| u64 pending_close_bw_vote; |
| struct mdss_rot_bus_data_type data_bus; |
| struct mdss_rot_bus_data_type reg_bus; |
| |
| /* Module power is only used for regulator management */ |
| struct mdss_module_power module_power; |
| bool regulator_enable; |
| |
| struct mutex clk_lock; |
| int res_ref_cnt; |
| struct clk *rot_clk[MDSS_CLK_ROTATOR_END_IDX]; |
| int rot_enable_clk_cnt; |
| |
| bool has_downscale; |
| bool has_ubwc; |
| }; |
| |
| #ifdef CONFIG_COMPAT |
| |
| /* open a rotation session */ |
| #define MDSS_ROTATION_OPEN32 \ |
| _IOWR(MDSS_ROTATOR_IOCTL_MAGIC, 1, compat_caddr_t) |
| |
| /* change the rotation session configuration */ |
| #define MDSS_ROTATION_CONFIG32 \ |
| _IOWR(MDSS_ROTATOR_IOCTL_MAGIC, 2, compat_caddr_t) |
| |
| /* queue the rotation request */ |
| #define MDSS_ROTATION_REQUEST32 \ |
| _IOWR(MDSS_ROTATOR_IOCTL_MAGIC, 3, compat_caddr_t) |
| |
| /* close a rotation session with the specified rotation session ID */ |
| #define MDSS_ROTATION_CLOSE32 \ |
| _IOW(MDSS_ROTATOR_IOCTL_MAGIC, 4, unsigned int) |
| |
| struct mdp_rotation_request32 { |
| uint32_t version; |
| uint32_t flags; |
| uint32_t count; |
| compat_caddr_t list; |
| uint32_t reserved[6]; |
| }; |
| #endif |
| |
| static inline int __compare_session_item_rect( |
| struct mdp_rotation_buf_info *s_rect, |
| struct mdp_rect *i_rect, uint32_t i_fmt, bool src) |
| { |
| if ((s_rect->width != i_rect->w) || (s_rect->height != i_rect->h) || |
| (s_rect->format != i_fmt)) { |
| pr_err("%s: session{%u,%u}f:%u mismatch from item{%u,%u}f:%u\n", |
| (src ? "src":"dst"), s_rect->width, s_rect->height, |
| s_rect->format, i_rect->w, i_rect->h, i_fmt); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| /* |
| * Compare all important flag bits associated with rotation between session |
| * config and item request. Format and roi validation is done during open |
| * session and is based certain defining bits. If these defining bits are |
| * different in item request, there is a possibility that rotation item |
| * is not a valid configuration. |
| */ |
| static inline int __compare_session_rotations(uint32_t cfg_flag, |
| uint32_t item_flag) |
| { |
| cfg_flag &= MDSS_MDP_DEFINING_FLAG_BITS; |
| item_flag &= MDSS_MDP_DEFINING_FLAG_BITS; |
| if (cfg_flag != item_flag) { |
| pr_err("Rotation degree request different from open session\n"); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| #endif |