142 lines
4 KiB
C
142 lines
4 KiB
C
/*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
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* Author: Rob Clark <rob@ti.com>
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* Andy Gross <andy.gross@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef OMAP_DMM_TILER_H
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#define OMAP_DMM_TILER_H
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#include "omap_drv.h"
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#include "tcm.h"
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enum tiler_fmt {
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TILFMT_8BIT = 0,
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TILFMT_16BIT,
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TILFMT_32BIT,
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TILFMT_PAGE,
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TILFMT_NFORMATS
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};
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struct pat_area {
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u32 x0:8;
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u32 y0:8;
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u32 x1:8;
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u32 y1:8;
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};
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struct tiler_block {
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struct list_head alloc_node; /* node for global block list */
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struct tcm_area area; /* area */
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enum tiler_fmt fmt; /* format */
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};
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/* bits representing the same slot in DMM-TILER hw-block */
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#define SLOT_WIDTH_BITS 6
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#define SLOT_HEIGHT_BITS 6
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/* bits reserved to describe coordinates in DMM-TILER hw-block */
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#define CONT_WIDTH_BITS 14
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#define CONT_HEIGHT_BITS 13
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/* calculated constants */
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#define TILER_PAGE (1 << (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS))
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#define TILER_WIDTH (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS))
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#define TILER_HEIGHT (1 << (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS))
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/*
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Table 15-11. Coding and Description of TILER Orientations
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S Y X Description Alternate description
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0 0 0 0-degree view Natural view
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0 0 1 0-degree view with vertical mirror 180-degree view with horizontal mirror
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0 1 0 0-degree view with horizontal mirror 180-degree view with vertical mirror
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0 1 1 180-degree view
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1 0 0 90-degree view with vertical mirror 270-degree view with horizontal mirror
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1 0 1 270-degree view
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1 1 0 90-degree view
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1 1 1 90-degree view with horizontal mirror 270-degree view with vertical mirror
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*/
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#define MASK_XY_FLIP (1 << 31)
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#define MASK_Y_INVERT (1 << 30)
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#define MASK_X_INVERT (1 << 29)
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#define SHIFT_ACC_MODE 27
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#define MASK_ACC_MODE 3
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#define MASK(bits) ((1 << (bits)) - 1)
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#define TILVIEW_8BIT 0x60000000u
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#define TILVIEW_16BIT (TILVIEW_8BIT + VIEW_SIZE)
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#define TILVIEW_32BIT (TILVIEW_16BIT + VIEW_SIZE)
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#define TILVIEW_PAGE (TILVIEW_32BIT + VIEW_SIZE)
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#define TILVIEW_END (TILVIEW_PAGE + VIEW_SIZE)
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/* create tsptr by adding view orientation and access mode */
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#define TIL_ADDR(x, orient, a)\
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((u32) (x) | (orient) | ((a) << SHIFT_ACC_MODE))
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#ifdef CONFIG_DEBUG_FS
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int tiler_map_show(struct seq_file *s, void *arg);
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#endif
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/* pin/unpin */
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int tiler_pin(struct tiler_block *block, struct page **pages,
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u32 npages, u32 roll, bool wait);
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int tiler_unpin(struct tiler_block *block);
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/* reserve/release */
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struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, u16 w, u16 h,
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u16 align);
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struct tiler_block *tiler_reserve_1d(size_t size);
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int tiler_release(struct tiler_block *block);
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/* utilities */
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dma_addr_t tiler_ssptr(struct tiler_block *block);
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dma_addr_t tiler_tsptr(struct tiler_block *block, u32 orient,
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u32 x, u32 y);
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u32 tiler_stride(enum tiler_fmt fmt, u32 orient);
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size_t tiler_size(enum tiler_fmt fmt, u16 w, u16 h);
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size_t tiler_vsize(enum tiler_fmt fmt, u16 w, u16 h);
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void tiler_align(enum tiler_fmt fmt, u16 *w, u16 *h);
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u32 tiler_get_cpu_cache_flags(void);
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bool dmm_is_available(void);
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extern struct platform_driver omap_dmm_driver;
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/* GEM bo flags -> tiler fmt */
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static inline enum tiler_fmt gem2fmt(u32 flags)
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{
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switch (flags & OMAP_BO_TILED) {
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case OMAP_BO_TILED_8:
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return TILFMT_8BIT;
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case OMAP_BO_TILED_16:
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return TILFMT_16BIT;
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case OMAP_BO_TILED_32:
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return TILFMT_32BIT;
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default:
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return TILFMT_PAGE;
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}
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}
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static inline bool validfmt(enum tiler_fmt fmt)
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{
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switch (fmt) {
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case TILFMT_8BIT:
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case TILFMT_16BIT:
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case TILFMT_32BIT:
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case TILFMT_PAGE:
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return true;
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default:
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return false;
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}
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}
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#endif
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