diff options
| author | Harry Wentland <harry.wentland@amd.com> | 2016-01-22 17:07:25 -0500 |
|---|---|---|
| committer | Luis Henriques <luis.henriques@canonical.com> | 2016-02-25 10:34:40 +0000 |
| commit | af2994588b9f9a31b760b103b477908f8b101a74 (patch) | |
| tree | 033ffebdf7f37366cb7045ab9010c019a8bb7764 /include/linux | |
| parent | 56e21c4eaa741ea16051795948915a14adef710b (diff) | |
drm: Add drm_fixp_from_fraction and drm_fixp2int_ceil
commit 64566b5e767f9bc3161055ca1b443a51afb52aad upstream.
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 <Jordan.Lazare@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions