Konsta Hölttä 0b70fff5db gpu: nvgpu: fix job count calculation for non-pow2 ...

The CIRC_SPACE and CIRC_CNT macros work as expected when the buffer size
is a power of two. The userspace-supplied number of inflight jobs is not
necessarily so. Compare the get and put pointers manually.

Jira NVGPU-4548

Change-Id: Ifa7bd6d78f82ec8efcac21fcca391053a2f6f311
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2328572
(cherry picked from commit 33dffa1cfb142eea0f28474566c31b632eee04f5)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2331340
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2020-12-15 14:13:28 -06:00

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