Sachit Kadle 0a1e7c6b09 gpu: nvgpu: correct gpfifo size calculation ...

This change fixes up the calculation of gpfifo entries, to be
allocated depending on the ioctl used:

1) For the legacy ALLOC_GPFIFO ioctl, we preserve the calculation
of gpfifo entries within the kernel.

2) For the new ALLOC_GPFIFO_EX ioctl, we assume that userspace has
pre-calculated power-of-2 value. We process this value un-modified
and only verify that it is a valid power-of-2.

Bug 1795076

Change-Id: I8d2ddfdae40b02fe6b81e63dfd8857ad514a3dfd
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1220968
(cherry picked from commit c42396d9836e9b7ec73e0728f0c502b63aff70db)
Reviewed-on: http://git-master/r/1223937
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2016-10-20 08:14:32 -07:00

..

gpu/nvgpu

gpu: nvgpu: correct gpfifo size calculation

2016-10-20 08:14:32 -07:00