workbench/hidds/nouveau/xf86-video-nouveau/nouveau_local.h

   1 /*
   2  * Copyright 2007 Nouveau Project
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #ifndef __NOUVEAU_LOCAL_H__
  24 #define __NOUVEAU_LOCAL_H__
  25
  26 #if !defined(__AROS__)
  27 #include "compiler.h"
  28 #include "xf86_OSproc.h"
  29 #endif
  30
  31 /* Debug output */
  32 #define NOUVEAU_MSG(fmt,args...) ErrorF(fmt, ##args)
  33 #define NOUVEAU_ERR(fmt,args...) \
  34         ErrorF("%s:%d - "fmt, __func__, __LINE__, ##args)
  35 #if 0
  36 #define NOUVEAU_FALLBACK(fmt,args...) do {    \
  37         NOUVEAU_ERR("FALLBACK: "fmt, ##args); \
  38         return FALSE;                         \
  39 } while(0)
  40 #else
  41 #define NOUVEAU_FALLBACK(fmt,args...) do {    \
  42         return FALSE;                         \
  43 } while(0)
  44 #endif
  45
  46 #define NOUVEAU_ALIGN(x,bytes) (((x) + ((bytes) - 1)) & ~((bytes) - 1))
  47
  48 #define NVC0_TILE_PITCH(m) (64 << ((m) & 0xf))
  49 #define NVC0_TILE_HEIGHT(m) (8 << ((m) >> 4))
  50
  51 static inline int log2i(int i)
  52 {
  53         int r = 0;
  54
  55         if (i & 0xffff0000) {
  56                 i >>= 16;
  57                 r += 16;
  58         }
  59         if (i & 0x0000ff00) {
  60                 i >>= 8;
  61                 r += 8;
  62         }
  63         if (i & 0x000000f0) {
  64                 i >>= 4;
  65                 r += 4;
  66         }
  67         if (i & 0x0000000c) {
  68                 i >>= 2;
  69                 r += 2;
  70         }
  71         if (i & 0x00000002) {
  72                 r += 1;
  73         }
  74         return r;
  75 }
  76
  77 static inline int round_down_pow2(int x)
  78 {
  79         return 1 << log2i(x);
  80 }
  81
  82 #define SWAP(x, y) do {                 \
  83                 typeof(x) __z = (x);    \
  84                 (x) = (y);              \
  85                 (y) = __z;              \
  86         } while (0)
  87
  88 #endif