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
32static inline double dml_min(double a, double b)
33{
34 return (double) dcn_bw_min2(arg1: a, arg2: b);
35}
36
37static inline double dml_min3(double a, double b, double c)
38{
39 return dml_min(a: dml_min(a, b), b: c);
40}
41
42static inline double dml_min4(double a, double b, double c, double d)
43{
44 return dml_min(a: dml_min(a, b), b: dml_min(a: c, b: d));
45}
46
47static inline double dml_max(double a, double b)
48{
49 return (double) dcn_bw_max2(arg1: a, arg2: b);
50}
51
52static inline double dml_max3(double a, double b, double c)
53{
54 return dml_max(a: dml_max(a, b), b: c);
55}
56
57static inline double dml_max4(double a, double b, double c, double d)
58{
59 return dml_max(a: dml_max(a, b), b: dml_max(a: c, b: d));
60}
61
62static inline double dml_max5(double a, double b, double c, double d, double e)
63{
64 return dml_max(a: dml_max4(a, b, c, d), b: e);
65}
66
67static inline double dml_ceil(double a, double granularity)
68{
69 return (double) dcn_bw_ceil2(arg: a, significance: granularity);
70}
71
72static inline double dml_floor(double a, double granularity)
73{
74 return (double) dcn_bw_floor2(arg: a, significance: granularity);
75}
76
77static inline double dml_round(double a)
78{
79 const double round_pt = 0.5;
80
81 return dml_floor(a: a + round_pt, granularity: 1);
82}
83
84/* float
85static inline int dml_log2(float x)
86{
87 unsigned int ix = *((unsigned int *)&x);
88
89 return (int)((ix >> 23) & 0xff) - 127;
90}*/
91
92/* double */
93static inline int dml_log2(double x)
94{
95 unsigned long long ix = *((unsigned long long *)&x);
96
97 return (int)((ix >> 52) & 0x7ff) - 1023;
98}
99
100static inline double dml_pow(double a, int exp)
101{
102 return (double) dcn_bw_pow(a, exp);
103}
104
105static inline double dml_fmod(double f, int val)
106{
107 return (double) dcn_bw_mod(arg1: f, arg2: val);
108}
109
110static inline double dml_ceil_2(double f)
111{
112 return (double) dcn_bw_ceil2(arg: f, significance: 2);
113}
114
115static inline double dml_ceil_ex(double x, double granularity)
116{
117 return (double) dcn_bw_ceil2(arg: x, significance: granularity);
118}
119
120static inline double dml_floor_ex(double x, double granularity)
121{
122 return (double) dcn_bw_floor2(arg: x, significance: granularity);
123}
124
125static inline unsigned int dml_round_to_multiple(unsigned int num,
126 unsigned int multiple,
127 unsigned char up)
128{
129 unsigned int remainder;
130
131 if (multiple == 0)
132 return num;
133
134 remainder = num % multiple;
135
136 if (remainder == 0)
137 return num;
138
139 if (up)
140 return (num + multiple - remainder);
141 else
142 return (num - remainder);
143}
144static inline double dml_abs(double a)
145{
146 if (a > 0)
147 return a;
148 else
149 return (a*(-1));
150}
151
152#endif
153

source code of linux/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h