1 /* 2 * 3 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ 4 * Author: Rob Clark <rob@ti.com> 5 * Andy Gross <andy.gross@ti.com> 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License as 9 * published by the Free Software Foundation version 2. 10 * 11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any 12 * kind, whether express or implied; without even the implied warranty 13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 #ifndef OMAP_DMM_TILER_H 17 #define OMAP_DMM_TILER_H 18 19 #include "omap_drv.h" 20 #include "tcm.h" 21 22 enum tiler_fmt { 23 TILFMT_8BIT = 0, 24 TILFMT_16BIT, 25 TILFMT_32BIT, 26 TILFMT_PAGE, 27 TILFMT_NFORMATS 28 }; 29 30 struct pat_area { 31 u32 x0:8; 32 u32 y0:8; 33 u32 x1:8; 34 u32 y1:8; 35 }; 36 37 struct tiler_block { 38 struct list_head alloc_node; /* node for global block list */ 39 struct tcm_area area; /* area */ 40 enum tiler_fmt fmt; /* format */ 41 }; 42 43 /* bits representing the same slot in DMM-TILER hw-block */ 44 #define SLOT_WIDTH_BITS 6 45 #define SLOT_HEIGHT_BITS 6 46 47 /* bits reserved to describe coordinates in DMM-TILER hw-block */ 48 #define CONT_WIDTH_BITS 14 49 #define CONT_HEIGHT_BITS 13 50 51 /* calculated constants */ 52 #define TILER_PAGE (1 << (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS)) 53 #define TILER_WIDTH (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS)) 54 #define TILER_HEIGHT (1 << (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS)) 55 56 /* 57 Table 15-11. Coding and Description of TILER Orientations 58 S Y X Description Alternate description 59 0 0 0 0-degree view Natural view 60 0 0 1 0-degree view with vertical mirror 180-degree view with horizontal mirror 61 0 1 0 0-degree view with horizontal mirror 180-degree view with vertical mirror 62 0 1 1 180-degree view 63 1 0 0 90-degree view with vertical mirror 270-degree view with horizontal mirror 64 1 0 1 270-degree view 65 1 1 0 90-degree view 66 1 1 1 90-degree view with horizontal mirror 270-degree view with vertical mirror 67 */ 68 #define MASK_XY_FLIP (1 << 31) 69 #define MASK_Y_INVERT (1 << 30) 70 #define MASK_X_INVERT (1 << 29) 71 #define SHIFT_ACC_MODE 27 72 #define MASK_ACC_MODE 3 73 74 #define MASK(bits) ((1 << (bits)) - 1) 75 76 #define TILVIEW_8BIT 0x60000000u 77 #define TILVIEW_16BIT (TILVIEW_8BIT + VIEW_SIZE) 78 #define TILVIEW_32BIT (TILVIEW_16BIT + VIEW_SIZE) 79 #define TILVIEW_PAGE (TILVIEW_32BIT + VIEW_SIZE) 80 #define TILVIEW_END (TILVIEW_PAGE + VIEW_SIZE) 81 82 /* create tsptr by adding view orientation and access mode */ 83 #define TIL_ADDR(x, orient, a)\ 84 ((u32) (x) | (orient) | ((a) << SHIFT_ACC_MODE)) 85 86 #ifdef CONFIG_DEBUG_FS 87 int tiler_map_show(struct seq_file *s, void *arg); 88 #endif 89 90 /* pin/unpin */ 91 int tiler_pin(struct tiler_block *block, struct page **pages, 92 uint32_t npages, uint32_t roll, bool wait); 93 int tiler_unpin(struct tiler_block *block); 94 95 /* reserve/release */ 96 struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, uint16_t h, 97 uint16_t align); 98 struct tiler_block *tiler_reserve_1d(size_t size); 99 int tiler_release(struct tiler_block *block); 100 101 /* utilities */ 102 dma_addr_t tiler_ssptr(struct tiler_block *block); 103 dma_addr_t tiler_tsptr(struct tiler_block *block, uint32_t orient, 104 uint32_t x, uint32_t y); 105 uint32_t tiler_stride(enum tiler_fmt fmt, uint32_t orient); 106 size_t tiler_size(enum tiler_fmt fmt, uint16_t w, uint16_t h); 107 size_t tiler_vsize(enum tiler_fmt fmt, uint16_t w, uint16_t h); 108 void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h); 109 uint32_t tiler_get_cpu_cache_flags(void); 110 bool dmm_is_available(void); 111 112 extern struct platform_driver omap_dmm_driver; 113 114 /* GEM bo flags -> tiler fmt */ 115 static inline enum tiler_fmt gem2fmt(uint32_t flags) 116 { 117 switch (flags & OMAP_BO_TILED) { 118 case OMAP_BO_TILED_8: 119 return TILFMT_8BIT; 120 case OMAP_BO_TILED_16: 121 return TILFMT_16BIT; 122 case OMAP_BO_TILED_32: 123 return TILFMT_32BIT; 124 default: 125 return TILFMT_PAGE; 126 } 127 } 128 129 static inline bool validfmt(enum tiler_fmt fmt) 130 { 131 switch (fmt) { 132 case TILFMT_8BIT: 133 case TILFMT_16BIT: 134 case TILFMT_32BIT: 135 case TILFMT_PAGE: 136 return true; 137 default: 138 return false; 139 } 140 } 141 142 #endif 143