Thread (1 message) 1 message, 1 author, 2012-04-11

[RFC 3/4] drm: fixed: Add dfixed_frac() macro

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From: Thierry Reding <hidden>
Date: 2012-04-11 12:10:29
Also in: dri-devel, linux-iommu, linux-tegra
Subsystem: drm drivers, the rest · Maintainers: David Airlie, Simona Vetter, Linus Torvalds

Possibly related (same subject, not in this thread)

This commit is taken from the Chromium tree and was originally written
by Robert Morell.

Signed-off-by: Thierry Reding <redacted>
---
 include/drm/drm_fixed.h |    1 +
 1 file changed, 1 insertion(+)
diff --git a/include/drm/drm_fixed.h b/include/drm/drm_fixed.h
index 4a08a66..0ead502 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)
 {
-- 
1.7.10
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