1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/ |
4 | * Author: Rob Clark <rob@ti.com> |
5 | * Andy Gross <andy.gross@ti.com> |
6 | */ |
7 | #ifndef OMAP_DMM_TILER_H |
8 | #define OMAP_DMM_TILER_H |
9 | |
10 | #include "omap_drv.h" |
11 | #include "tcm.h" |
12 | |
13 | enum tiler_fmt { |
14 | TILFMT_8BIT = 0, |
15 | TILFMT_16BIT, |
16 | TILFMT_32BIT, |
17 | TILFMT_PAGE, |
18 | TILFMT_NFORMATS |
19 | }; |
20 | |
21 | struct pat_area { |
22 | u32 x0:8; |
23 | u32 y0:8; |
24 | u32 x1:8; |
25 | u32 y1:8; |
26 | }; |
27 | |
28 | struct tiler_block { |
29 | struct list_head alloc_node; /* node for global block list */ |
30 | struct tcm_area area; /* area */ |
31 | enum tiler_fmt fmt; /* format */ |
32 | }; |
33 | |
34 | /* bits representing the same slot in DMM-TILER hw-block */ |
35 | #define SLOT_WIDTH_BITS 6 |
36 | #define SLOT_HEIGHT_BITS 6 |
37 | |
38 | /* bits reserved to describe coordinates in DMM-TILER hw-block */ |
39 | #define CONT_WIDTH_BITS 14 |
40 | #define CONT_HEIGHT_BITS 13 |
41 | |
42 | /* calculated constants */ |
43 | #define TILER_PAGE (1 << (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS)) |
44 | #define TILER_WIDTH (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS)) |
45 | #define TILER_HEIGHT (1 << (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS)) |
46 | |
47 | /* |
48 | Table 15-11. Coding and Description of TILER Orientations |
49 | S Y X Description Alternate description |
50 | 0 0 0 0-degree view Natural view |
51 | 0 0 1 0-degree view with vertical mirror 180-degree view with horizontal mirror |
52 | 0 1 0 0-degree view with horizontal mirror 180-degree view with vertical mirror |
53 | 0 1 1 180-degree view |
54 | 1 0 0 90-degree view with vertical mirror 270-degree view with horizontal mirror |
55 | 1 0 1 270-degree view |
56 | 1 1 0 90-degree view |
57 | 1 1 1 90-degree view with horizontal mirror 270-degree view with vertical mirror |
58 | */ |
59 | #define MASK_XY_FLIP (1 << 31) |
60 | #define MASK_Y_INVERT (1 << 30) |
61 | #define MASK_X_INVERT (1 << 29) |
62 | #define SHIFT_ACC_MODE 27 |
63 | #define MASK_ACC_MODE 3 |
64 | |
65 | #define MASK(bits) ((1 << (bits)) - 1) |
66 | |
67 | #define TILVIEW_8BIT 0x60000000u |
68 | #define TILVIEW_16BIT (TILVIEW_8BIT + VIEW_SIZE) |
69 | #define TILVIEW_32BIT (TILVIEW_16BIT + VIEW_SIZE) |
70 | #define TILVIEW_PAGE (TILVIEW_32BIT + VIEW_SIZE) |
71 | #define TILVIEW_END (TILVIEW_PAGE + VIEW_SIZE) |
72 | |
73 | /* create tsptr by adding view orientation and access mode */ |
74 | #define TIL_ADDR(x, orient, a)\ |
75 | ((u32) (x) | (orient) | ((a) << SHIFT_ACC_MODE)) |
76 | |
77 | #ifdef CONFIG_DEBUG_FS |
78 | int tiler_map_show(struct seq_file *s, void *arg); |
79 | #endif |
80 | |
81 | /* pin/unpin */ |
82 | int tiler_pin(struct tiler_block *block, struct page **pages, |
83 | u32 npages, u32 roll, bool wait); |
84 | int tiler_unpin(struct tiler_block *block); |
85 | |
86 | /* reserve/release */ |
87 | struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, u16 w, u16 h, |
88 | u16 align); |
89 | struct tiler_block *tiler_reserve_1d(size_t size); |
90 | int tiler_release(struct tiler_block *block); |
91 | |
92 | /* utilities */ |
93 | dma_addr_t tiler_ssptr(struct tiler_block *block); |
94 | dma_addr_t tiler_tsptr(struct tiler_block *block, u32 orient, |
95 | u32 x, u32 y); |
96 | u32 tiler_stride(enum tiler_fmt fmt, u32 orient); |
97 | size_t tiler_size(enum tiler_fmt fmt, u16 w, u16 h); |
98 | size_t tiler_vsize(enum tiler_fmt fmt, u16 w, u16 h); |
99 | void tiler_align(enum tiler_fmt fmt, u16 *w, u16 *h); |
100 | u32 tiler_get_cpu_cache_flags(void); |
101 | bool dmm_is_available(void); |
102 | |
103 | extern struct platform_driver omap_dmm_driver; |
104 | |
105 | /* GEM bo flags -> tiler fmt */ |
106 | static inline enum tiler_fmt gem2fmt(u32 flags) |
107 | { |
108 | switch (flags & OMAP_BO_TILED_MASK) { |
109 | case OMAP_BO_TILED_8: |
110 | return TILFMT_8BIT; |
111 | case OMAP_BO_TILED_16: |
112 | return TILFMT_16BIT; |
113 | case OMAP_BO_TILED_32: |
114 | return TILFMT_32BIT; |
115 | default: |
116 | return TILFMT_PAGE; |
117 | } |
118 | } |
119 | |
120 | static inline bool validfmt(enum tiler_fmt fmt) |
121 | { |
122 | switch (fmt) { |
123 | case TILFMT_8BIT: |
124 | case TILFMT_16BIT: |
125 | case TILFMT_32BIT: |
126 | case TILFMT_PAGE: |
127 | return true; |
128 | default: |
129 | return false; |
130 | } |
131 | } |
132 | |
133 | #endif |
134 | |