1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * vsp1_dl.h -- R-Car VSP1 Display List
5 * Copyright (C) 2015 Renesas Corporation
12 #include <linux/types.h>
16 struct vsp1_dl_body_pool;
18 struct vsp1_dl_manager;
20 /* Keep these flags in sync with VSP1_DU_STATUS_* in include/media/vsp1.h. */
21 #define VSP1_DL_FRAME_END_COMPLETED BIT(0)
22 #define VSP1_DL_FRAME_END_WRITEBACK BIT(1)
23 #define VSP1_DL_FRAME_END_INTERNAL BIT(2)
26 * struct vsp1_dl_ext_cmd - Extended Display command
27 * @pool: pool to which this command belongs
28 * @free: entry in the pool of free commands list
29 * @opcode: command type opcode
30 * @flags: flags used by the command
31 * @cmds: array of command bodies for this extended cmd
32 * @num_cmds: quantity of commands in @cmds array
33 * @cmd_dma: DMA address of the command body
34 * @data: memory allocation for command-specific data
35 * @data_dma: DMA address for command-specific data
37 struct vsp1_dl_ext_cmd {
38 struct vsp1_dl_cmd_pool *pool;
39 struct list_head free;
44 struct vsp1_pre_ext_dl_body *cmds;
45 unsigned int num_cmds;
52 void vsp1_dlm_setup(struct vsp1_device *vsp1);
54 struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
56 unsigned int prealloc);
57 void vsp1_dlm_destroy(struct vsp1_dl_manager *dlm);
58 void vsp1_dlm_reset(struct vsp1_dl_manager *dlm);
59 unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm);
60 struct vsp1_dl_body *vsp1_dlm_dl_body_get(struct vsp1_dl_manager *dlm);
62 struct vsp1_dl_list *vsp1_dl_list_get(struct vsp1_dl_manager *dlm);
63 void vsp1_dl_list_put(struct vsp1_dl_list *dl);
64 struct vsp1_dl_body *vsp1_dl_list_get_body0(struct vsp1_dl_list *dl);
65 struct vsp1_dl_ext_cmd *vsp1_dl_get_pre_cmd(struct vsp1_dl_list *dl);
66 void vsp1_dl_list_commit(struct vsp1_dl_list *dl, unsigned int dl_flags);
68 struct vsp1_dl_body_pool *
69 vsp1_dl_body_pool_create(struct vsp1_device *vsp1, unsigned int num_bodies,
70 unsigned int num_entries, size_t extra_size);
71 void vsp1_dl_body_pool_destroy(struct vsp1_dl_body_pool *pool);
72 struct vsp1_dl_body *vsp1_dl_body_get(struct vsp1_dl_body_pool *pool);
73 void vsp1_dl_body_put(struct vsp1_dl_body *dlb);
75 void vsp1_dl_body_write(struct vsp1_dl_body *dlb, u32 reg, u32 data);
76 int vsp1_dl_list_add_body(struct vsp1_dl_list *dl, struct vsp1_dl_body *dlb);
77 int vsp1_dl_list_add_chain(struct vsp1_dl_list *head, struct vsp1_dl_list *dl);
79 #endif /* __VSP1_DL_H__ */