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 21 enum tiler_fmt { 22 TILFMT_8BIT = 0, 23 TILFMT_16BIT, 24 TILFMT_32BIT, 25 TILFMT_PAGE, 26 TILFMT_NFORMATS 27 }; 28 29 struct pat_area { 30 u32 x0:8; 31 u32 y0:8; 32 u32 x1:8; 33 u32 y1:8; 34 }; 35 36 struct 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 /* 56 Table 15-11. Coding and Description of TILER Orientations 57 S Y X Description Alternate description 58 0 0 0 0-degree view Natural view 59 0 0 1 0-degree view with vertical mirror 180-degree view with horizontal mirror 60 0 1 0 0-degree view with horizontal mirror 180-degree view with vertical mirror 61 0 1 1 180-degree view 62 1 0 0 90-degree view with vertical mirror 270-degree view with horizontal mirror 63 1 0 1 270-degree view 64 1 1 0 90-degree view 65 1 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 86 int tiler_map_show(struct seq_file *s, void *arg); 87 #endif 88 89 /* pin/unpin */ 90 int tiler_pin(struct tiler_block *block, struct page **pages, 91 u32 npages, u32 roll, bool wait); 92 int tiler_unpin(struct tiler_block *block); 93 94 /* reserve/release */ 95 struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, u16 w, u16 h, 96 u16 align); 97 struct tiler_block *tiler_reserve_1d(size_t size); 98 int tiler_release(struct tiler_block *block); 99 100 /* utilities */ 101 dma_addr_t tiler_ssptr(struct tiler_block *block); 102 dma_addr_t tiler_tsptr(struct tiler_block *block, u32 orient, 103 u32 x, u32 y); 104 u32 tiler_stride(enum tiler_fmt fmt, u32 orient); 105 size_t tiler_size(enum tiler_fmt fmt, u16 w, u16 h); 106 size_t tiler_vsize(enum tiler_fmt fmt, u16 w, u16 h); 107 void tiler_align(enum tiler_fmt fmt, u16 *w, u16 *h); 108 u32 tiler_get_cpu_cache_flags(void); 109 bool dmm_is_available(void); 110 111 extern struct platform_driver omap_dmm_driver; 112 113 /* GEM bo flags -> tiler fmt */ 114 static inline enum tiler_fmt gem2fmt(u32 flags) 115 { 116 switch (flags & OMAP_BO_TILED_MASK) { 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 } 127 128 static 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 142