From 627c235be502ea07cf66fac921af372e15164be9 Mon Sep 17 00:00:00 2001 From: Robert Morell Date: Thu, 17 Mar 2011 17:54:39 -0700 Subject: drm_fixed: Add dfixed_frac This helper macro retrieves the fractional part of a fixed20_12 20.12 fixed-point number. bug 818525 Original-Change-Id: Ia43a7bd3029a4d09ad7801099cbe2a52a4fc9c04 Signed-off-by: Robert Morell Reviewed-on: http://git-master/r/40525 Reviewed-by: Varun Colbert Tested-by: Varun Colbert Rebase-Id: R3ad51cd6fb0e1dadbc25807bf12894a9b81e94d3 --- include/drm/drm_fixed.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/drm') diff --git a/include/drm/drm_fixed.h b/include/drm/drm_fixed.h index 4a08a664ff1f..0ead502e17d2 100644 --- a/include/drm/drm_fixed.h +++ b/include/drm/drm_fixed.h @@ -37,6 +37,7 @@ typedef union dfixed { #define dfixed_init(A) { .full = dfixed_const((A)) } #define dfixed_init_half(A) { .full = dfixed_const_half((A)) } #define dfixed_trunc(A) ((A).full >> 12) +#define dfixed_frac(A) ((A).full & ((1 << 12) - 1)) static inline u32 dfixed_floor(fixed20_12 A) { -- cgit v1.2.3