drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h

   1 /*
   2  * Copyright 2017 Advanced Micro Devices, Inc.
   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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: AMD
  23  *
  24  */
  25
  26 #ifndef __DML_INLINE_DEFS_H__
  27 #define __DML_INLINE_DEFS_H__
  28
  29 #include "dcn_calc_math.h"
  30 #include "dml_logger.h"
  31
  32 static inline double dml_min(double a, double b)
  33 {
  34         return (double) dcn_bw_min2(a, b);
  35 }
  36
  37 static inline double dml_min3(double a, double b, double c)
  38 {
  39         return dml_min(dml_min(a, b), c);
  40 }
  41
  42 static inline double dml_min4(double a, double b, double c, double d)
  43 {
  44         return dml_min(dml_min(a, b), dml_min(c, d));
  45 }
  46
  47 static inline double dml_max(double a, double b)
  48 {
  49         return (double) dcn_bw_max2(a, b);
  50 }
  51
  52 static inline double dml_max3(double a, double b, double c)
  53 {
  54         return dml_max(dml_max(a, b), c);
  55 }
  56
  57 static inline double dml_max4(double a, double b, double c, double d)
  58 {
  59         return dml_max(dml_max(a, b), dml_max(c, d));
  60 }
  61
  62 static inline double dml_max5(double a, double b, double c, double d, double e)
  63 {
  64         return dml_max(dml_max4(a, b, c, d), e);
  65 }
  66
  67 static inline double dml_ceil(double a, double granularity)
  68 {
  69         return (double) dcn_bw_ceil2(a, granularity);
  70 }
  71
  72 static inline double dml_floor(double a, double granularity)
  73 {
  74         return (double) dcn_bw_floor2(a, granularity);
  75 }
  76
  77 static inline double dml_round(double a)
  78 {
  79         double round_pt = 0.5;
  80         double ceil = dml_ceil(a, 1);
  81         double floor = dml_floor(a, 1);
  82
  83         if (a - floor >= round_pt)
  84                 return ceil;
  85         else
  86                 return floor;
  87 }
  88
  89 /* float
  90 static inline int dml_log2(float x)
  91 {
  92         unsigned int ix = *((unsigned int *)&x);
  93
  94         return (int)((ix >> 23) & 0xff) - 127;
  95 }*/
  96
  97 /* double */
  98 static inline int dml_log2(double x)
  99 {
 100         unsigned long long ix = *((unsigned long long *)&x);
 101
 102         return (int)((ix >> 52) & 0x7ff) - 1023;
 103 }
 104
 105 static inline double dml_pow(double a, int exp)
 106 {
 107         return (double) dcn_bw_pow(a, exp);
 108 }
 109
 110 static inline double dml_fmod(double f, int val)
 111 {
 112         return (double) dcn_bw_mod(f, val);
 113 }
 114
 115 static inline double dml_ceil_2(double f)
 116 {
 117         return (double) dcn_bw_ceil2(f, 2);
 118 }
 119
 120 static inline double dml_ceil_ex(double x, double granularity)
 121 {
 122         return (double) dcn_bw_ceil2(x, granularity);
 123 }
 124
 125 static inline double dml_floor_ex(double x, double granularity)
 126 {
 127         return (double) dcn_bw_floor2(x, granularity);
 128 }
 129
 130 static inline unsigned int dml_round_to_multiple(unsigned int num,
 131                                                  unsigned int multiple,
 132                                                  unsigned char up)
 133 {
 134         unsigned int remainder;
 135
 136         if (multiple == 0)
 137                 return num;
 138
 139         remainder = num % multiple;
 140
 141         if (remainder == 0)
 142                 return num;
 143
 144         if (up)
 145                 return (num + multiple - remainder);
 146         else
 147                 return (num - remainder);
 148 }
 149 static inline double dml_abs(double a)
 150 {
 151         if (a > 0)
 152                 return a;
 153         else
 154                 return (a*(-1));
 155 }
 156
 157 #endif