root/drivers/gpu/drm/omapdrm/omap_dmm_tiler.h

INCLUDED FROM

DEFINITIONS

1. gem2fmt
2. validfmt

   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) {
 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