| /* Copyright (c) 2015-2016, 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 SDE_ROTATOR_CORE_H |
| #define SDE_ROTATOR_CORE_H |
| |
| #include <linux/list.h> |
| #include <linux/file.h> |
| #include <linux/ktime.h> |
| #include <linux/mutex.h> |
| #include <linux/types.h> |
| #include <linux/cdev.h> |
| #include <linux/pm_runtime.h> |
| |
| #include "sde_rotator_base.h" |
| #include "sde_rotator_util.h" |
| #include "sde_rotator_sync.h" |
| |
| /********************************************************************** |
| * Rotation request flag |
| **********************************************************************/ |
| /* no rotation flag */ |
| #define SDE_ROTATION_NOP 0x01 |
| |
| /* left/right flip */ |
| #define SDE_ROTATION_FLIP_LR 0x02 |
| |
| /* up/down flip */ |
| #define SDE_ROTATION_FLIP_UD 0x04 |
| |
| /* rotate 90 degree */ |
| #define SDE_ROTATION_90 0x08 |
| |
| /* rotate 180 degre */ |
| #define SDE_ROTATION_180 (SDE_ROTATION_FLIP_LR | SDE_ROTATION_FLIP_UD) |
| |
| /* rotate 270 degree */ |
| #define SDE_ROTATION_270 (SDE_ROTATION_90 | SDE_ROTATION_180) |
| |
| /* format is interlaced */ |
| #define SDE_ROTATION_DEINTERLACE 0x10 |
| |
| /* secure data */ |
| #define SDE_ROTATION_SECURE 0x80 |
| |
| /* verify input configuration only */ |
| #define SDE_ROTATION_VERIFY_INPUT_ONLY 0x10000 |
| |
| /* use client provided dma buf instead of ion fd */ |
| #define SDE_ROTATION_EXT_DMA_BUF 0x20000 |
| |
| /********************************************************************** |
| * configuration structures |
| **********************************************************************/ |
| |
| struct sde_rotation_buf_info { |
| uint32_t width; |
| uint32_t height; |
| uint32_t format; |
| struct sde_mult_factor comp_ratio; |
| }; |
| |
| struct sde_rotation_config { |
| uint32_t session_id; |
| struct sde_rotation_buf_info input; |
| struct sde_rotation_buf_info output; |
| uint32_t frame_rate; |
| uint32_t flags; |
| }; |
| |
| enum sde_rotator_ts { |
| SDE_ROTATOR_TS_SRCQB, /* enqueue source buffer */ |
| SDE_ROTATOR_TS_DSTQB, /* enqueue destination buffer */ |
| SDE_ROTATOR_TS_FENCE, /* wait for source buffer fence */ |
| SDE_ROTATOR_TS_QUEUE, /* wait for h/w resource */ |
| SDE_ROTATOR_TS_COMMIT, /* prepare h/w command */ |
| SDE_ROTATOR_TS_FLUSH, /* initiate h/w processing */ |
| SDE_ROTATOR_TS_DONE, /* receive h/w completion */ |
| SDE_ROTATOR_TS_RETIRE, /* signal destination buffer fence */ |
| SDE_ROTATOR_TS_SRCDQB, /* dequeue source buffer */ |
| SDE_ROTATOR_TS_DSTDQB, /* dequeue destination buffer */ |
| SDE_ROTATOR_TS_MAX |
| }; |
| |
| struct sde_rotation_item { |
| /* rotation request flag */ |
| uint32_t flags; |
| |
| /* Source crop rectangle */ |
| struct sde_rect src_rect; |
| |
| /* Destination rectangle */ |
| struct sde_rect dst_rect; |
| |
| /* Input buffer for the request */ |
| struct sde_layer_buffer input; |
| |
| /* The output buffer for the request */ |
| struct sde_layer_buffer output; |
| |
| /* |
| * DMA pipe selection for this request by client: |
| * 0: DMA pipe 0 |
| * 1: DMA pipe 1 |
| * or SDE_ROTATION_HW_ANY if client wants |
| * driver to allocate any that is available |
| * |
| * OR |
| * |
| * Reserved |
| */ |
| uint32_t pipe_idx; |
| |
| /* |
| * Write-back block selection for this request by client: |
| * 0: Write-back block 0 |
| * 1: Write-back block 1 |
| * or SDE_ROTATION_HW_ANY if client wants |
| * driver to allocate any that is available |
| * |
| * OR |
| * |
| * Priority selection for this request by client: |
| * 0: Highest |
| * 1..n: Limited by the lowest available priority |
| */ |
| uint32_t wb_idx; |
| |
| /* |
| * Sequence ID of this request within the session |
| */ |
| uint32_t sequence_id; |
| |
| /* Which session ID is this request scheduled on */ |
| uint32_t session_id; |
| |
| /* Time stamp for profiling purposes */ |
| ktime_t *ts; |
| }; |
| |
| /* |
| * Defining characteristics about rotation work, that has corresponding |
| * fmt and roi checks in open session |
| */ |
| #define SDE_ROT_DEFINING_FLAG_BITS SDE_ROTATION_90 |
| |
| struct sde_rot_entry; |
| struct sde_rot_perf; |
| |
| struct sde_rot_clk { |
| struct clk *clk; |
| char clk_name[32]; |
| unsigned long rate; |
| }; |
| |
| struct sde_rot_hw_resource { |
| u32 wb_id; |
| u32 pending_count; |
| atomic_t num_active; |
| int max_active; |
| wait_queue_head_t wait_queue; |
| }; |
| |
| struct sde_rot_queue { |
| struct workqueue_struct *rot_work_queue; |
| struct sde_rot_timeline *timeline; |
| struct sde_rot_hw_resource *hw; |
| }; |
| |
| struct sde_rot_entry_container { |
| struct list_head list; |
| u32 flags; |
| u32 count; |
| atomic_t pending_count; |
| atomic_t failed_count; |
| struct workqueue_struct *retireq; |
| struct work_struct *retire_work; |
| struct sde_rot_entry *entries; |
| }; |
| |
| struct sde_rot_mgr; |
| struct sde_rot_file_private; |
| |
| struct sde_rot_entry { |
| struct sde_rotation_item item; |
| struct work_struct commit_work; |
| struct work_struct done_work; |
| struct sde_rot_queue *commitq; |
| struct sde_rot_queue *fenceq; |
| struct sde_rot_queue *doneq; |
| struct sde_rot_entry_container *request; |
| |
| struct sde_mdp_data src_buf; |
| struct sde_mdp_data dst_buf; |
| |
| struct sde_rot_sync_fence *input_fence; |
| |
| struct sde_rot_sync_fence *output_fence; |
| bool output_signaled; |
| |
| u32 dnsc_factor_w; |
| u32 dnsc_factor_h; |
| |
| struct sde_rot_perf *perf; |
| bool work_assigned; /* Used when cleaning up work_distribution */ |
| struct sde_rot_file_private *private; |
| }; |
| |
| struct sde_rot_perf { |
| struct list_head list; |
| struct sde_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 */ |
| u32 rdot_limit; |
| u32 wrot_limit; |
| }; |
| |
| struct sde_rot_file_private { |
| struct list_head list; |
| struct list_head req_list; |
| struct list_head perf_list; |
| struct sde_rot_mgr *mgr; |
| struct sde_rot_queue *fenceq; |
| }; |
| |
| struct sde_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 sde_rot_mgr { |
| struct mutex lock; |
| atomic_t device_suspended; |
| struct platform_device *pdev; |
| struct device *device; |
| |
| /* |
| * Managing rotation queues, depends on |
| * how many hw pipes available on the system |
| */ |
| int queue_count; |
| struct sde_rot_queue *commitq; |
| struct sde_rot_queue *doneq; |
| |
| /* |
| * managing all the open file sessions to bw calculations, |
| * and resource clean up during suspend |
| */ |
| struct list_head file_list; |
| |
| u64 pending_close_bw_vote; |
| struct sde_rot_bus_data_type data_bus; |
| struct sde_rot_bus_data_type reg_bus; |
| |
| /* Module power is only used for regulator management */ |
| struct sde_module_power module_power; |
| bool regulator_enable; |
| |
| int res_ref_cnt; |
| int rot_enable_clk_cnt; |
| struct sde_rot_clk *rot_clk; |
| int num_rot_clk; |
| int core_clk_idx; |
| u32 rdot_limit; |
| u32 wrot_limit; |
| |
| u32 hwacquire_timeout; |
| struct sde_mult_factor pixel_per_clk; |
| |
| int (*ops_config_hw)(struct sde_rot_hw_resource *hw, |
| struct sde_rot_entry *entry); |
| int (*ops_kickoff_entry)(struct sde_rot_hw_resource *hw, |
| struct sde_rot_entry *entry); |
| int (*ops_wait_for_entry)(struct sde_rot_hw_resource *hw, |
| struct sde_rot_entry *entry); |
| struct sde_rot_hw_resource *(*ops_hw_alloc)(struct sde_rot_mgr *mgr, |
| u32 pipe_id, u32 wb_id); |
| void (*ops_hw_free)(struct sde_rot_mgr *mgr, |
| struct sde_rot_hw_resource *hw); |
| int (*ops_hw_init)(struct sde_rot_mgr *mgr); |
| void (*ops_hw_destroy)(struct sde_rot_mgr *mgr); |
| ssize_t (*ops_hw_show_caps)(struct sde_rot_mgr *mgr, |
| struct device_attribute *attr, char *buf, ssize_t len); |
| ssize_t (*ops_hw_show_state)(struct sde_rot_mgr *mgr, |
| struct device_attribute *attr, char *buf, ssize_t len); |
| int (*ops_hw_create_debugfs)(struct sde_rot_mgr *mgr, |
| struct dentry *debugfs_root); |
| int (*ops_hw_validate_entry)(struct sde_rot_mgr *mgr, |
| struct sde_rot_entry *entry); |
| u32 (*ops_hw_get_pixfmt)(struct sde_rot_mgr *mgr, int index, |
| bool input); |
| int (*ops_hw_is_valid_pixfmt)(struct sde_rot_mgr *mgr, u32 pixfmt, |
| bool input); |
| |
| void *hw_data; |
| }; |
| |
| static inline int sde_rotator_is_valid_pixfmt(struct sde_rot_mgr *mgr, |
| u32 pixfmt, bool input) |
| { |
| if (mgr && mgr->ops_hw_is_valid_pixfmt) |
| return mgr->ops_hw_is_valid_pixfmt(mgr, pixfmt, input); |
| |
| return false; |
| } |
| |
| static inline u32 sde_rotator_get_pixfmt(struct sde_rot_mgr *mgr, |
| int index, bool input) |
| { |
| if (mgr && mgr->ops_hw_get_pixfmt) |
| return mgr->ops_hw_get_pixfmt(mgr, index, input); |
| |
| return 0; |
| } |
| |
| static inline int __compare_session_item_rect( |
| struct sde_rotation_buf_info *s_rect, |
| struct sde_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)) { |
| SDEROT_DBG( |
| "%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 &= SDE_ROT_DEFINING_FLAG_BITS; |
| item_flag &= SDE_ROT_DEFINING_FLAG_BITS; |
| if (cfg_flag != item_flag) { |
| SDEROT_DBG( |
| "Rotation degree request different from open session\n"); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| int sde_rotator_core_init(struct sde_rot_mgr **pmgr, |
| struct platform_device *pdev); |
| |
| void sde_rotator_core_destroy(struct sde_rot_mgr *mgr); |
| |
| int sde_rotator_session_open(struct sde_rot_mgr *mgr, |
| struct sde_rot_file_private **pprivate, int session_id, |
| struct sde_rot_queue *queue); |
| |
| void sde_rotator_session_close(struct sde_rot_mgr *mgr, |
| struct sde_rot_file_private *private, int session_id); |
| |
| int sde_rotator_session_config(struct sde_rot_mgr *mgr, |
| struct sde_rot_file_private *private, |
| struct sde_rotation_config *config); |
| |
| struct sde_rot_entry_container *sde_rotator_req_init( |
| struct sde_rot_mgr *rot_dev, |
| struct sde_rot_file_private *private, |
| struct sde_rotation_item *items, |
| u32 count, u32 flags); |
| |
| int sde_rotator_handle_request_common(struct sde_rot_mgr *rot_dev, |
| struct sde_rot_file_private *ctx, |
| struct sde_rot_entry_container *req, |
| struct sde_rotation_item *items); |
| |
| void sde_rotator_queue_request(struct sde_rot_mgr *rot_dev, |
| struct sde_rot_file_private *ctx, |
| struct sde_rot_entry_container *req); |
| |
| void sde_rotator_remove_request(struct sde_rot_mgr *mgr, |
| struct sde_rot_file_private *private, |
| struct sde_rot_entry_container *req); |
| |
| int sde_rotator_verify_config(struct sde_rot_mgr *rot_dev, |
| struct sde_rotation_config *config); |
| |
| int sde_rotator_validate_request(struct sde_rot_mgr *rot_dev, |
| struct sde_rot_file_private *ctx, |
| struct sde_rot_entry_container *req); |
| |
| static inline void sde_rot_mgr_lock(struct sde_rot_mgr *mgr) |
| { |
| mutex_lock(&mgr->lock); |
| } |
| |
| static inline void sde_rot_mgr_unlock(struct sde_rot_mgr *mgr) |
| { |
| mutex_unlock(&mgr->lock); |
| } |
| |
| #if defined(CONFIG_PM) |
| int sde_rotator_runtime_resume(struct device *dev); |
| int sde_rotator_runtime_suspend(struct device *dev); |
| int sde_rotator_runtime_idle(struct device *dev); |
| #endif |
| |
| #if defined(CONFIG_PM_SLEEP) |
| int sde_rotator_pm_suspend(struct device *dev); |
| int sde_rotator_pm_resume(struct device *dev); |
| #endif |
| |
| #if defined(CONFIG_PM) && !defined(CONFIG_PM_SLEEP) |
| int sde_rotator_suspend(struct platform_device *dev, pm_message_t state); |
| int sde_rotator_resume(struct platform_device *dev); |
| #else |
| #define sde_rotator_suspend NULL |
| #define sde_rotator_resume NULL |
| #endif |
| #endif /* __SDE_ROTATOR_CORE_H__ */ |