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