On 12/05/23 07:40, Maíra Canal wrote:
> Create a new fixed-point helper to allow us to return the rounded value
> of our fixed point value.
>
> [v2]:
> * Create the function drm_fixp2int_round() (Melissa Wen).
> [v3]:
> * Use drm_fixp2int() instead of shifting manually (Arthur Grillo).
>
> Signed-off-by: Maíra Canal <mcanal@xxxxxxxxxx>
> ---
Reviewed-by: Arthur Grillo <arthurgrillo@xxxxxxxxxx>
Best Regards,
~Arthur Grillo
> include/drm/drm_fixed.h | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/include/drm/drm_fixed.h b/include/drm/drm_fixed.h
> index 255645c1f9a8..6ea339d5de08 100644
> --- a/include/drm/drm_fixed.h
> +++ b/include/drm/drm_fixed.h
> @@ -71,6 +71,7 @@ static inline u32 dfixed_div(fixed20_12 A, fixed20_12 B)
> }
>
> #define DRM_FIXED_POINT 32
> +#define DRM_FIXED_POINT_HALF 16
> #define DRM_FIXED_ONE (1ULL << DRM_FIXED_POINT)
> #define DRM_FIXED_DECIMAL_MASK (DRM_FIXED_ONE - 1)
> #define DRM_FIXED_DIGITS_MASK (~DRM_FIXED_DECIMAL_MASK)
> @@ -87,6 +88,11 @@ static inline int drm_fixp2int(s64 a)
> return ((s64)a) >> DRM_FIXED_POINT;
> }
>
> +static inline int drm_fixp2int_round(s64 a)
> +{
> + return drm_fixp2int(a + (1 << (DRM_FIXED_POINT_HALF - 1)));
> +}
> +
> static inline int drm_fixp2int_ceil(s64 a)
> {
> if (a > 0)
