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 	if (granularity == 0)
70 		return 0;
71 	return (double) dcn_bw_ceil2(a, granularity);
72 }
73 
74 static inline double dml_floor(double a, double granularity)
75 {
76 	if (granularity == 0)
77 		return 0;
78 	return (double) dcn_bw_floor2(a, granularity);
79 }
80 
81 static inline double dml_round(double a)
82 {
83 	const double round_pt = 0.5;
84 
85 	return dml_floor(a + round_pt, 1);
86 }
87 
88 /* float
89 static inline int dml_log2(float x)
90 {
91 	unsigned int ix = *((unsigned int *)&x);
92 
93 	return (int)((ix >> 23) & 0xff) - 127;
94 }*/
95 
96 /* double */
97 static inline int dml_log2(double x)
98 {
99 	unsigned long long ix = *((unsigned long long *)&x);
100 
101 	return (int)((ix >> 52) & 0x7ff) - 1023;
102 }
103 
104 static inline double dml_pow(double a, int exp)
105 {
106 	return (double) dcn_bw_pow(a, exp);
107 }
108 
109 static inline double dml_fmod(double f, int val)
110 {
111 	return (double) dcn_bw_mod(f, val);
112 }
113 
114 static inline double dml_ceil_2(double f)
115 {
116 	return (double) dcn_bw_ceil2(f, 2);
117 }
118 
119 static inline double dml_ceil_ex(double x, double granularity)
120 {
121 	if (granularity == 0)
122 		return 0;
123 	return (double) dcn_bw_ceil2(x, granularity);
124 }
125 
126 static inline double dml_floor_ex(double x, double granularity)
127 {
128 	if (granularity == 0)
129 		return 0;
130 	return (double) dcn_bw_floor2(x, granularity);
131 }
132 
133 static inline unsigned int dml_round_to_multiple(unsigned int num,
134 						 unsigned int multiple,
135 						 unsigned char up)
136 {
137 	unsigned int remainder;
138 
139 	if (multiple == 0)
140 		return num;
141 
142 	remainder = num % multiple;
143 
144 	if (remainder == 0)
145 		return num;
146 
147 	if (up)
148 		return (num + multiple - remainder);
149 	else
150 		return (num - remainder);
151 }
152 static inline double dml_abs(double a)
153 {
154 	if (a > 0)
155 		return a;
156 	else
157 		return (a*(-1));
158 }
159 
160 #endif
161