05 Feb, 2016

1 commit

• 64566b5e7   drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil ... Browse Code »

  drm_fixp_from_fraction allows us to create a fixed point directly
  from a fraction, rather than creating fixed point values and dividing
  later. This avoids overflow of our 64 bit value for large numbers.

  drm_fixp2int_ceil allows us to return the ceiling of our fixed point
  value.

  [airlied: squash Jordan's fix]
  32-bit-build-fix: Jordan Lazare
  Signed-off-by: Harry Wentland
  Cc: stable@vger.kernel.org
  Reviewed-by: Alex Deucher
  Signed-off-by: Dave Airlie

  Harry Wentland

  2016-02-05 13:23:48 +0800  

31 Jul, 2013

1 commit

• a838834b2   drm: fix 64 bit drm fixed point helpers ... Browse Code »

  Sign bit wasn't handled properly and a small typo.

  Thanks to Christian for helping me sort this out.

  Signed-off-by: Alex Deucher

  Alex Deucher

  2013-07-31 05:24:13 +0800  

28 Jun, 2013

1 commit

• 210a0b9e2   drm: add some additional fixed point helpers (v3) ... Browse Code »

  Required for certain driver calculations. Code
  was written by Christian König and ported to the
  drm by me.

  v2: fix 64 bit divides
  v3: fix 64 bit for real (math64.h)

  Signed-off-by: Alex Deucher

  Alex Deucher

  2013-06-28 07:16:37 +0800  

27 Apr, 2012

1 commit

• f7f6c340f   drm: fixed: Add dfixed_frac ... Browse Code »

  This helper macro retrieves the fractional part of a fixed20_12 20.12
  fixed-point number.

  Signed-off-by: Robert Morell
  Signed-off-by: Olof Johansson
  Signed-off-by: Thierry Reding
  Signed-off-by: Dave Airlie

  Robert Morell

  2012-04-27 16:29:35 +0800  

18 May, 2010

1 commit

• 68adac5e4   drm: move radeon_fixed.h to shared drm_fixed.h header ... Browse Code »

  Will be used by nouveau driver also in the near future.

  Signed-off-by: Ben Skeggs
  Signed-off-by: Dave Airlie

  Ben Skeggs

  2010-05-18 16:21:33 +0800