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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
13enum tiler_fmt {
14 TILFMT_8BIT = 0,
15 TILFMT_16BIT,
16 TILFMT_32BIT,
17 TILFMT_PAGE,
18 TILFMT_NFORMATS
19};
20
21struct pat_area {
22 u32 x0:8;
23 u32 y0:8;
24 u32 x1:8;
25 u32 y1:8;
26};
27
28struct 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/*
48Table 15-11. Coding and Description of TILER Orientations
49S Y X Description Alternate description
500 0 0 0-degree view Natural view
510 0 1 0-degree view with vertical mirror 180-degree view with horizontal mirror
520 1 0 0-degree view with horizontal mirror 180-degree view with vertical mirror
530 1 1 180-degree view
541 0 0 90-degree view with vertical mirror 270-degree view with horizontal mirror
551 0 1 270-degree view
561 1 0 90-degree view
571 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
78int tiler_map_show(struct seq_file *s, void *arg);
79#endif
80
81/* pin/unpin */
82int tiler_pin(struct tiler_block *block, struct page **pages,
83 u32 npages, u32 roll, bool wait);
84int tiler_unpin(struct tiler_block *block);
85
86/* reserve/release */
87struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, u16 w, u16 h,
88 u16 align);
89struct tiler_block *tiler_reserve_1d(size_t size);
90int tiler_release(struct tiler_block *block);
91
92/* utilities */
93dma_addr_t tiler_ssptr(struct tiler_block *block);
94dma_addr_t tiler_tsptr(struct tiler_block *block, u32 orient,
95 u32 x, u32 y);
96u32 tiler_stride(enum tiler_fmt fmt, u32 orient);
97size_t tiler_size(enum tiler_fmt fmt, u16 w, u16 h);
98size_t tiler_vsize(enum tiler_fmt fmt, u16 w, u16 h);
99void tiler_align(enum tiler_fmt fmt, u16 *w, u16 *h);
100u32 tiler_get_cpu_cache_flags(void);
101bool dmm_is_available(void);
102
103extern struct platform_driver omap_dmm_driver;
104
105/* GEM bo flags -> tiler fmt */
106static 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
120static 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
1/*
2 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
3 * Author: Rob Clark <rob@ti.com>
4 * Andy Gross <andy.gross@ti.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation version 2.
9 *
10 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
11 * kind, whether express or implied; without even the implied warranty
12 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15#ifndef OMAP_DMM_TILER_H
16#define OMAP_DMM_TILER_H
17
18#include "omap_drv.h"
19#include "tcm.h"
20
21enum tiler_fmt {
22 TILFMT_8BIT = 0,
23 TILFMT_16BIT,
24 TILFMT_32BIT,
25 TILFMT_PAGE,
26 TILFMT_NFORMATS
27};
28
29struct pat_area {
30 u32 x0:8;
31 u32 y0:8;
32 u32 x1:8;
33 u32 y1:8;
34};
35
36struct tiler_block {
37 struct list_head alloc_node; /* node for global block list */
38 struct tcm_area area; /* area */
39 enum tiler_fmt fmt; /* format */
40};
41
42/* bits representing the same slot in DMM-TILER hw-block */
43#define SLOT_WIDTH_BITS 6
44#define SLOT_HEIGHT_BITS 6
45
46/* bits reserved to describe coordinates in DMM-TILER hw-block */
47#define CONT_WIDTH_BITS 14
48#define CONT_HEIGHT_BITS 13
49
50/* calculated constants */
51#define TILER_PAGE (1 << (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS))
52#define TILER_WIDTH (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS))
53#define TILER_HEIGHT (1 << (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS))
54
55/*
56Table 15-11. Coding and Description of TILER Orientations
57S Y X Description Alternate description
580 0 0 0-degree view Natural view
590 0 1 0-degree view with vertical mirror 180-degree view with horizontal mirror
600 1 0 0-degree view with horizontal mirror 180-degree view with vertical mirror
610 1 1 180-degree view
621 0 0 90-degree view with vertical mirror 270-degree view with horizontal mirror
631 0 1 270-degree view
641 1 0 90-degree view
651 1 1 90-degree view with horizontal mirror 270-degree view with vertical mirror
66 */
67#define MASK_XY_FLIP (1 << 31)
68#define MASK_Y_INVERT (1 << 30)
69#define MASK_X_INVERT (1 << 29)
70#define SHIFT_ACC_MODE 27
71#define MASK_ACC_MODE 3
72
73#define MASK(bits) ((1 << (bits)) - 1)
74
75#define TILVIEW_8BIT 0x60000000u
76#define TILVIEW_16BIT (TILVIEW_8BIT + VIEW_SIZE)
77#define TILVIEW_32BIT (TILVIEW_16BIT + VIEW_SIZE)
78#define TILVIEW_PAGE (TILVIEW_32BIT + VIEW_SIZE)
79#define TILVIEW_END (TILVIEW_PAGE + VIEW_SIZE)
80
81/* create tsptr by adding view orientation and access mode */
82#define TIL_ADDR(x, orient, a)\
83 ((u32) (x) | (orient) | ((a) << SHIFT_ACC_MODE))
84
85#ifdef CONFIG_DEBUG_FS
86int tiler_map_show(struct seq_file *s, void *arg);
87#endif
88
89/* pin/unpin */
90int tiler_pin(struct tiler_block *block, struct page **pages,
91 u32 npages, u32 roll, bool wait);
92int tiler_unpin(struct tiler_block *block);
93
94/* reserve/release */
95struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, u16 w, u16 h,
96 u16 align);
97struct tiler_block *tiler_reserve_1d(size_t size);
98int tiler_release(struct tiler_block *block);
99
100/* utilities */
101dma_addr_t tiler_ssptr(struct tiler_block *block);
102dma_addr_t tiler_tsptr(struct tiler_block *block, u32 orient,
103 u32 x, u32 y);
104u32 tiler_stride(enum tiler_fmt fmt, u32 orient);
105size_t tiler_size(enum tiler_fmt fmt, u16 w, u16 h);
106size_t tiler_vsize(enum tiler_fmt fmt, u16 w, u16 h);
107void tiler_align(enum tiler_fmt fmt, u16 *w, u16 *h);
108u32 tiler_get_cpu_cache_flags(void);
109bool dmm_is_available(void);
110
111extern struct platform_driver omap_dmm_driver;
112
113/* GEM bo flags -> tiler fmt */
114static inline enum tiler_fmt gem2fmt(u32 flags)
115{
116 switch (flags & OMAP_BO_TILED) {
117 case OMAP_BO_TILED_8:
118 return TILFMT_8BIT;
119 case OMAP_BO_TILED_16:
120 return TILFMT_16BIT;
121 case OMAP_BO_TILED_32:
122 return TILFMT_32BIT;
123 default:
124 return TILFMT_PAGE;
125 }
126}
127
128static inline bool validfmt(enum tiler_fmt fmt)
129{
130 switch (fmt) {
131 case TILFMT_8BIT:
132 case TILFMT_16BIT:
133 case TILFMT_32BIT:
134 case TILFMT_PAGE:
135 return true;
136 default:
137 return false;
138 }
139}
140
141#endif