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path: root/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c
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Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c')
-rw-r--r--drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c176
1 files changed, 88 insertions, 88 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c b/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c
index 7191c3213743..e398ecdf742c 100644
--- a/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c
+++ b/drivers/gpu/drm/amd/display/dc/basics/fixpt31_32.c
@@ -64,7 +64,7 @@ static inline unsigned long long complete_integer_division_u64(
#define GET_FRACTIONAL_PART(x) \
(FRACTIONAL_PART_MASK & (x))
-struct fixed31_32 dal_fixed31_32_from_fraction(
+struct fixed31_32 dc_fixpt_from_fraction(
long long numerator,
long long denominator)
{
@@ -118,7 +118,7 @@ struct fixed31_32 dal_fixed31_32_from_fraction(
return res;
}
-struct fixed31_32 dal_fixed31_32_from_int_nonconst(
+struct fixed31_32 dc_fixpt_from_int_nonconst(
long long arg)
{
struct fixed31_32 res;
@@ -130,7 +130,7 @@ struct fixed31_32 dal_fixed31_32_from_int_nonconst(
return res;
}
-struct fixed31_32 dal_fixed31_32_shl(
+struct fixed31_32 dc_fixpt_shl(
struct fixed31_32 arg,
unsigned char shift)
{
@@ -144,7 +144,7 @@ struct fixed31_32 dal_fixed31_32_shl(
return res;
}
-struct fixed31_32 dal_fixed31_32_add(
+struct fixed31_32 dc_fixpt_add(
struct fixed31_32 arg1,
struct fixed31_32 arg2)
{
@@ -158,7 +158,7 @@ struct fixed31_32 dal_fixed31_32_add(
return res;
}
-struct fixed31_32 dal_fixed31_32_sub(
+struct fixed31_32 dc_fixpt_sub(
struct fixed31_32 arg1,
struct fixed31_32 arg2)
{
@@ -172,7 +172,7 @@ struct fixed31_32 dal_fixed31_32_sub(
return res;
}
-struct fixed31_32 dal_fixed31_32_mul(
+struct fixed31_32 dc_fixpt_mul(
struct fixed31_32 arg1,
struct fixed31_32 arg2)
{
@@ -213,7 +213,7 @@ struct fixed31_32 dal_fixed31_32_mul(
tmp = arg1_fra * arg2_fra;
tmp = (tmp >> FIXED31_32_BITS_PER_FRACTIONAL_PART) +
- (tmp >= (unsigned long long)dal_fixed31_32_half.value);
+ (tmp >= (unsigned long long)dc_fixpt_half.value);
ASSERT(tmp <= (unsigned long long)(LLONG_MAX - res.value));
@@ -225,7 +225,7 @@ struct fixed31_32 dal_fixed31_32_mul(
return res;
}
-struct fixed31_32 dal_fixed31_32_sqr(
+struct fixed31_32 dc_fixpt_sqr(
struct fixed31_32 arg)
{
struct fixed31_32 res;
@@ -257,7 +257,7 @@ struct fixed31_32 dal_fixed31_32_sqr(
tmp = arg_fra * arg_fra;
tmp = (tmp >> FIXED31_32_BITS_PER_FRACTIONAL_PART) +
- (tmp >= (unsigned long long)dal_fixed31_32_half.value);
+ (tmp >= (unsigned long long)dc_fixpt_half.value);
ASSERT(tmp <= (unsigned long long)(LLONG_MAX - res.value));
@@ -266,7 +266,7 @@ struct fixed31_32 dal_fixed31_32_sqr(
return res;
}
-struct fixed31_32 dal_fixed31_32_recip(
+struct fixed31_32 dc_fixpt_recip(
struct fixed31_32 arg)
{
/*
@@ -276,41 +276,41 @@ struct fixed31_32 dal_fixed31_32_recip(
ASSERT(arg.value);
- return dal_fixed31_32_from_fraction(
- dal_fixed31_32_one.value,
+ return dc_fixpt_from_fraction(
+ dc_fixpt_one.value,
arg.value);
}
-struct fixed31_32 dal_fixed31_32_sinc(
+struct fixed31_32 dc_fixpt_sinc(
struct fixed31_32 arg)
{
struct fixed31_32 square;
- struct fixed31_32 res = dal_fixed31_32_one;
+ struct fixed31_32 res = dc_fixpt_one;
int n = 27;
struct fixed31_32 arg_norm = arg;
- if (dal_fixed31_32_le(
- dal_fixed31_32_two_pi,
- dal_fixed31_32_abs(arg))) {
- arg_norm = dal_fixed31_32_sub(
+ if (dc_fixpt_le(
+ dc_fixpt_two_pi,
+ dc_fixpt_abs(arg))) {
+ arg_norm = dc_fixpt_sub(
arg_norm,
- dal_fixed31_32_mul_int(
- dal_fixed31_32_two_pi,
+ dc_fixpt_mul_int(
+ dc_fixpt_two_pi,
(int)div64_s64(
arg_norm.value,
- dal_fixed31_32_two_pi.value)));
+ dc_fixpt_two_pi.value)));
}
- square = dal_fixed31_32_sqr(arg_norm);
+ square = dc_fixpt_sqr(arg_norm);
do {
- res = dal_fixed31_32_sub(
- dal_fixed31_32_one,
- dal_fixed31_32_div_int(
- dal_fixed31_32_mul(
+ res = dc_fixpt_sub(
+ dc_fixpt_one,
+ dc_fixpt_div_int(
+ dc_fixpt_mul(
square,
res),
n * (n - 1)));
@@ -319,37 +319,37 @@ struct fixed31_32 dal_fixed31_32_sinc(
} while (n > 2);
if (arg.value != arg_norm.value)
- res = dal_fixed31_32_div(
- dal_fixed31_32_mul(res, arg_norm),
+ res = dc_fixpt_div(
+ dc_fixpt_mul(res, arg_norm),
arg);
return res;
}
-struct fixed31_32 dal_fixed31_32_sin(
+struct fixed31_32 dc_fixpt_sin(
struct fixed31_32 arg)
{
- return dal_fixed31_32_mul(
+ return dc_fixpt_mul(
arg,
- dal_fixed31_32_sinc(arg));
+ dc_fixpt_sinc(arg));
}
-struct fixed31_32 dal_fixed31_32_cos(
+struct fixed31_32 dc_fixpt_cos(
struct fixed31_32 arg)
{
/* TODO implement argument normalization */
- const struct fixed31_32 square = dal_fixed31_32_sqr(arg);
+ const struct fixed31_32 square = dc_fixpt_sqr(arg);
- struct fixed31_32 res = dal_fixed31_32_one;
+ struct fixed31_32 res = dc_fixpt_one;
int n = 26;
do {
- res = dal_fixed31_32_sub(
- dal_fixed31_32_one,
- dal_fixed31_32_div_int(
- dal_fixed31_32_mul(
+ res = dc_fixpt_sub(
+ dc_fixpt_one,
+ dc_fixpt_div_int(
+ dc_fixpt_mul(
square,
res),
n * (n - 1)));
@@ -372,31 +372,31 @@ static struct fixed31_32 fixed31_32_exp_from_taylor_series(
{
unsigned int n = 9;
- struct fixed31_32 res = dal_fixed31_32_from_fraction(
+ struct fixed31_32 res = dc_fixpt_from_fraction(
n + 2,
n + 1);
/* TODO find correct res */
- ASSERT(dal_fixed31_32_lt(arg, dal_fixed31_32_one));
+ ASSERT(dc_fixpt_lt(arg, dc_fixpt_one));
do
- res = dal_fixed31_32_add(
- dal_fixed31_32_one,
- dal_fixed31_32_div_int(
- dal_fixed31_32_mul(
+ res = dc_fixpt_add(
+ dc_fixpt_one,
+ dc_fixpt_div_int(
+ dc_fixpt_mul(
arg,
res),
n));
while (--n != 1);
- return dal_fixed31_32_add(
- dal_fixed31_32_one,
- dal_fixed31_32_mul(
+ return dc_fixpt_add(
+ dc_fixpt_one,
+ dc_fixpt_mul(
arg,
res));
}
-struct fixed31_32 dal_fixed31_32_exp(
+struct fixed31_32 dc_fixpt_exp(
struct fixed31_32 arg)
{
/*
@@ -406,44 +406,44 @@ struct fixed31_32 dal_fixed31_32_exp(
* where m = round(x / ln(2)), r = x - m * ln(2)
*/
- if (dal_fixed31_32_le(
- dal_fixed31_32_ln2_div_2,
- dal_fixed31_32_abs(arg))) {
- int m = dal_fixed31_32_round(
- dal_fixed31_32_div(
+ if (dc_fixpt_le(
+ dc_fixpt_ln2_div_2,
+ dc_fixpt_abs(arg))) {
+ int m = dc_fixpt_round(
+ dc_fixpt_div(
arg,
- dal_fixed31_32_ln2));
+ dc_fixpt_ln2));
- struct fixed31_32 r = dal_fixed31_32_sub(
+ struct fixed31_32 r = dc_fixpt_sub(
arg,
- dal_fixed31_32_mul_int(
- dal_fixed31_32_ln2,
+ dc_fixpt_mul_int(
+ dc_fixpt_ln2,
m));
ASSERT(m != 0);
- ASSERT(dal_fixed31_32_lt(
- dal_fixed31_32_abs(r),
- dal_fixed31_32_one));
+ ASSERT(dc_fixpt_lt(
+ dc_fixpt_abs(r),
+ dc_fixpt_one));
if (m > 0)
- return dal_fixed31_32_shl(
+ return dc_fixpt_shl(
fixed31_32_exp_from_taylor_series(r),
(unsigned char)m);
else
- return dal_fixed31_32_div_int(
+ return dc_fixpt_div_int(
fixed31_32_exp_from_taylor_series(r),
1LL << -m);
} else if (arg.value != 0)
return fixed31_32_exp_from_taylor_series(arg);
else
- return dal_fixed31_32_one;
+ return dc_fixpt_one;
}
-struct fixed31_32 dal_fixed31_32_log(
+struct fixed31_32 dc_fixpt_log(
struct fixed31_32 arg)
{
- struct fixed31_32 res = dal_fixed31_32_neg(dal_fixed31_32_one);
+ struct fixed31_32 res = dc_fixpt_neg(dc_fixpt_one);
/* TODO improve 1st estimation */
struct fixed31_32 error;
@@ -453,15 +453,15 @@ struct fixed31_32 dal_fixed31_32_log(
/* TODO if arg is zero, return -INF */
do {
- struct fixed31_32 res1 = dal_fixed31_32_add(
- dal_fixed31_32_sub(
+ struct fixed31_32 res1 = dc_fixpt_add(
+ dc_fixpt_sub(
res,
- dal_fixed31_32_one),
- dal_fixed31_32_div(
+ dc_fixpt_one),
+ dc_fixpt_div(
arg,
- dal_fixed31_32_exp(res)));
+ dc_fixpt_exp(res)));
- error = dal_fixed31_32_sub(
+ error = dc_fixpt_sub(
res,
res1);
@@ -472,17 +472,17 @@ struct fixed31_32 dal_fixed31_32_log(
return res;
}
-struct fixed31_32 dal_fixed31_32_pow(
+struct fixed31_32 dc_fixpt_pow(
struct fixed31_32 arg1,
struct fixed31_32 arg2)
{
- return dal_fixed31_32_exp(
- dal_fixed31_32_mul(
- dal_fixed31_32_log(arg1),
+ return dc_fixpt_exp(
+ dc_fixpt_mul(
+ dc_fixpt_log(arg1),
arg2));
}
-int dal_fixed31_32_floor(
+int dc_fixpt_floor(
struct fixed31_32 arg)
{
unsigned long long arg_value = abs_i64(arg.value);
@@ -493,12 +493,12 @@ int dal_fixed31_32_floor(
return -(int)GET_INTEGER_PART(arg_value);
}
-int dal_fixed31_32_round(
+int dc_fixpt_round(
struct fixed31_32 arg)
{
unsigned long long arg_value = abs_i64(arg.value);
- const long long summand = dal_fixed31_32_half.value;
+ const long long summand = dc_fixpt_half.value;
ASSERT(LLONG_MAX - (long long)arg_value >= summand);
@@ -510,13 +510,13 @@ int dal_fixed31_32_round(
return -(int)GET_INTEGER_PART(arg_value);
}
-int dal_fixed31_32_ceil(
+int dc_fixpt_ceil(
struct fixed31_32 arg)
{
unsigned long long arg_value = abs_i64(arg.value);
- const long long summand = dal_fixed31_32_one.value -
- dal_fixed31_32_epsilon.value;
+ const long long summand = dc_fixpt_one.value -
+ dc_fixpt_epsilon.value;
ASSERT(LLONG_MAX - (long long)arg_value >= summand);
@@ -531,7 +531,7 @@ int dal_fixed31_32_ceil(
/* this function is a generic helper to translate fixed point value to
* specified integer format that will consist of integer_bits integer part and
* fractional_bits fractional part. For example it is used in
- * dal_fixed31_32_u2d19 to receive 2 bits integer part and 19 bits fractional
+ * dc_fixpt_u2d19 to receive 2 bits integer part and 19 bits fractional
* part in 32 bits. It is used in hw programming (scaler)
*/
@@ -570,35 +570,35 @@ static inline unsigned int clamp_ux_dy(
return min_clamp;
}
-unsigned int dal_fixed31_32_u2d19(
+unsigned int dc_fixpt_u2d19(
struct fixed31_32 arg)
{
return ux_dy(arg.value, 2, 19);
}
-unsigned int dal_fixed31_32_u0d19(
+unsigned int dc_fixpt_u0d19(
struct fixed31_32 arg)
{
return ux_dy(arg.value, 0, 19);
}
-unsigned int dal_fixed31_32_clamp_u0d14(
+unsigned int dc_fixpt_clamp_u0d14(
struct fixed31_32 arg)
{
return clamp_ux_dy(arg.value, 0, 14, 1);
}
-unsigned int dal_fixed31_32_clamp_u0d10(
+unsigned int dc_fixpt_clamp_u0d10(
struct fixed31_32 arg)
{
return clamp_ux_dy(arg.value, 0, 10, 1);
}
-int dal_fixed31_32_s4d19(
+int dc_fixpt_s4d19(
struct fixed31_32 arg)
{
if (arg.value < 0)
- return -(int)ux_dy(dal_fixed31_32_abs(arg).value, 4, 19);
+ return -(int)ux_dy(dc_fixpt_abs(arg).value, 4, 19);
else
return ux_dy(arg.value, 4, 19);
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-29 13:24:31 +0300