search for: csc_drm_to_base

...c.c index 049ce6da321c..fd0c1d84730b 100644 --- a/drivers/gpu/drm/nouveau/dispnv50/base907c.c +++ b/drivers/gpu/drm/nouveau/dispnv50/base907c.c @@ -83,6 +83,68 @@ base907c_ilut(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw) asyw->xlut.i.load = head907d_olut_load; } +static inline u32 +csc_drm_to_base(u64 in) +{ + /* base takes a 19-bit 2's complement value in S3.16 format */ + bool sign = in & BIT_ULL(63); + u32 integer = (in >> 32) & 0x7fffffff; + u32 fraction = in & 0xffffffff; + + if (integer >= 4) { + return (1 << 18) - (sign ? 0 : 1); + } else { + u32 ret =...