diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h b/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h index 02e06c9b3230..479d7d83220c 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h +++ b/drivers/gpu/drm/amd/display/dc/dml/dml_inline_defs.h @@ -86,9 +86,20 @@ static inline double dml_round(double a) return floor; } +/* float +static inline int dml_log2(float x) +{ + unsigned int ix = *((unsigned int *)&x); + + return (int)((ix >> 23) & 0xff) - 127; +}*/ + +/* double */ static inline int dml_log2(double x) { - return dml_round((double)dcn_bw_log(x, 2)); + unsigned long long ix = *((unsigned long long *)&x); + + return (int)((ix >> 52) & 0x7ff) - 1023; } static inline double dml_pow(double a, int exp) @@ -116,11 +127,6 @@ static inline double dml_floor_ex(double x, double granularity) return (double) dcn_bw_floor2(x, granularity); } -static inline double dml_log(double x, double base) -{ - return (double) dcn_bw_log(x, base); -} - static inline unsigned int dml_round_to_multiple(unsigned int num, unsigned int multiple, unsigned char up) |